diff --git a/.github/workflows/azure-static-web-apps-jolly-plant-0ab9ac21e.yml b/.github/workflows/azure-static-web-apps-jolly-plant-0ab9ac21e.yml
new file mode 100644
index 0000000..5bef44b
--- /dev/null
+++ b/.github/workflows/azure-static-web-apps-jolly-plant-0ab9ac21e.yml
@@ -0,0 +1,46 @@
+name: Azure Static Web Apps CI/CD
+
+on:
+  push:
+    branches:
+      - main
+  pull_request:
+    types: [opened, synchronize, reopened, closed]
+    branches:
+      - main
+
+jobs:
+  build_and_deploy_job:
+    if: github.event_name == 'push' || (github.event_name == 'pull_request' && github.event.action != 'closed')
+    runs-on: ubuntu-latest
+    name: Build and Deploy Job
+    steps:
+      - uses: actions/checkout@v3
+        with:
+          submodules: true
+          lfs: false
+      - name: Build And Deploy
+        id: builddeploy
+        uses: Azure/static-web-apps-deploy@v1
+        with:
+          azure_static_web_apps_api_token: ${{ secrets.AZURE_STATIC_WEB_APPS_API_TOKEN_JOLLY_PLANT_0AB9AC21E }}
+          repo_token: ${{ secrets.GITHUB_TOKEN }} # Used for Github integrations (i.e. PR comments)
+          action: "upload"
+          ###### Repository/Build Configurations - These values can be configured to match your app requirements. ######
+          # For more information regarding Static Web App workflow configurations, please visit: https://aka.ms/swaworkflowconfig
+          app_location: "/" # App source code path
+          api_location: "" # Api source code path - optional
+          output_location: "/" # Built app content directory - optional
+          ###### End of Repository/Build Configurations ######
+
+  close_pull_request_job:
+    if: github.event_name == 'pull_request' && github.event.action == 'closed'
+    runs-on: ubuntu-latest
+    name: Close Pull Request Job
+    steps:
+      - name: Close Pull Request
+        id: closepullrequest
+        uses: Azure/static-web-apps-deploy@v1
+        with:
+          azure_static_web_apps_api_token: ${{ secrets.AZURE_STATIC_WEB_APPS_API_TOKEN_JOLLY_PLANT_0AB9AC21E }}
+          action: "close"
diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..a4d6d9c
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1 @@
+.vs/
\ No newline at end of file
diff --git a/.vscode/settings.json b/.vscode/settings.json
new file mode 100644
index 0000000..6f3a291
--- /dev/null
+++ b/.vscode/settings.json
@@ -0,0 +1,3 @@
+{
+    "liveServer.settings.port": 5501
+}
\ No newline at end of file
diff --git a/404.html b/404.html
index f694067..0611dc7 100644
--- a/404.html
+++ b/404.html
@@ -173,17 +173,7 @@
 									<a href="./calendario">
 										Calendário de Reuniões
 									</a>
-									<a
-										target="_blank"
-										href="http://nbcgib.uesc.br/dcetweb/"
-									>
-										<span>
-											Área para membros do COLCIC
-										</span>
-										<iconify-icon
-											icon="akar-icons:link-chain"
-										></iconify-icon>
-									</a>
+
 								</ul>
 							</li>
 							<li class="dropdown">
@@ -208,15 +198,6 @@
 									</a>
 								</ul>
 							</li>
-							<a
-								target="_blank"
-								href="http://www.uesc.br/dcet/index.php?item=conteudo_informatica.php"
-							>
-								<span>Docentes</span>
-								<iconify-icon
-									icon="akar-icons:link-chain"
-								></iconify-icon>
-							</a>
 							<a href="./contato">Contato</a>
 						</ul>
 					</div>
diff --git a/aproveitamentos/index.html b/aproveitamentos/index.html
index 5227b5b..107ee23 100644
--- a/aproveitamentos/index.html
+++ b/aproveitamentos/index.html
@@ -172,36 +172,7 @@
 									</a>
 								</ul>
 							</li>
-							<li
-								class="dropdown"
-								style="transition-delay: 100ms !important"
-							>
-								<span class="title">
-									<span> Colegiado </span>
-									<iconify-icon
-										icon="dashicons:arrow-down-alt2"
-									></iconify-icon>
-								</span>
-								<ul>
-									<a href="../colegiado">
-										Composição do colegiado
-									</a>
-									<a href="../calendario">
-										Calendário de Reuniões
-									</a>
-									<a
-										target="_blank"
-										href="http://nbcgib.uesc.br/dcetweb/"
-									>
-										<span>
-											Área para membros do COLCIC
-										</span>
-										<iconify-icon
-											icon="akar-icons:link-chain"
-										></iconify-icon>
-									</a>
-								</ul>
-							</li>
+
 							<li
 								class="dropdown"
 								style="transition-delay: 100ms !important"
@@ -228,16 +199,10 @@
 									</a>
 								</ul>
 							</li>
-							<a
-								target="_blank"
-								href="http://www.uesc.br/dcet/index.php?item=conteudo_informatica.php"
-							>
-								<span>Docentes</span>
-								<iconify-icon
-									icon="akar-icons:link-chain"
-								></iconify-icon>
-							</a>
+
+                            <a href="../colegiado"> Colegiado</a>
 							<a href="../contato">Contato</a>
+							<a href="../reserva">Reservas</a>
 						</ul>
 					</div>
 					<button class="iconMenu" onclick="toggleNavList()">
diff --git a/assets/biblioteca.jpg b/assets/biblioteca.jpg
new file mode 100644
index 0000000..f38cccb
Binary files /dev/null and b/assets/biblioteca.jpg differ
diff --git a/assets/entidades/ccam.png b/assets/entidades/ccam.png
new file mode 100644
index 0000000..6b556f8
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diff --git a/assets/entidades/cepedi.png b/assets/entidades/cepedi.png
deleted file mode 100644
index f4fd638..0000000
Binary files a/assets/entidades/cepedi.png and /dev/null differ
diff --git a/assets/entidades/dcet.png b/assets/entidades/dcet.png
deleted file mode 100644
index 536bf1c..0000000
Binary files a/assets/entidades/dcet.png and /dev/null differ
diff --git a/assets/entidades/erbase.png b/assets/entidades/erbase.png
deleted file mode 100644
index 23d36c2..0000000
Binary files a/assets/entidades/erbase.png and /dev/null differ
diff --git a/assets/entidades/nbcgib.png b/assets/entidades/nbcgib.png
deleted file mode 100644
index 6ccbb86..0000000
Binary files a/assets/entidades/nbcgib.png and /dev/null differ
diff --git a/assets/logo_natal.png b/assets/logo_natal.png
new file mode 100644
index 0000000..51bb73c
Binary files /dev/null and b/assets/logo_natal.png differ
diff --git a/assets/ok.png b/assets/ok.png
new file mode 100644
index 0000000..399a97c
Binary files /dev/null and b/assets/ok.png differ
diff --git a/assets/reserva.png b/assets/reserva.png
new file mode 100644
index 0000000..4f11c9a
Binary files /dev/null and b/assets/reserva.png differ
diff --git a/assets/sobre1.png b/assets/sobre1.png
new file mode 100644
index 0000000..e945557
Binary files /dev/null and b/assets/sobre1.png differ
diff --git a/assets/sobre2.png b/assets/sobre2.png
new file mode 100644
index 0000000..2458155
Binary files /dev/null and b/assets/sobre2.png differ
diff --git a/assets/tvuesc.png b/assets/tvuesc.png
new file mode 100644
index 0000000..2f385ce
Binary files /dev/null and b/assets/tvuesc.png differ
diff --git a/backend/.env b/backend/.env
new file mode 100644
index 0000000..ed5cec8
--- /dev/null
+++ b/backend/.env
@@ -0,0 +1,3 @@
+SMTP_USER=colciclab@uesc.br
+SMTP_PASS=psmmjuonnjwlsjql
+
diff --git a/backend/node_modules/.package-lock.json b/backend/node_modules/.package-lock.json
new file mode 100644
index 0000000..fdb3aac
--- /dev/null
+++ b/backend/node_modules/.package-lock.json
@@ -0,0 +1,805 @@
+{
+  "name": "backend",
+  "version": "1.0.0",
+  "lockfileVersion": 3,
+  "requires": true,
+  "packages": {
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+      "dependencies": {
+        "mime-types": "^3.0.0",
+        "negotiator": "^1.0.0"
+      },
+      "engines": {
+        "node": ">= 0.6"
+      }
+    },
+    "node_modules/body-parser": {
+      "version": "2.2.0",
+      "resolved": "https://registry.npmjs.org/body-parser/-/body-parser-2.2.0.tgz",
+      "integrity": "sha512-02qvAaxv8tp7fBa/mw1ga98OGm+eCbqzJOKoRt70sLmfEEi+jyBYVTDGfCL/k06/4EMk/z01gCe7HoCH/f2LTg==",
+      "dependencies": {
+        "bytes": "^3.1.2",
+        "content-type": "^1.0.5",
+        "debug": "^4.4.0",
+        "http-errors": "^2.0.0",
+        "iconv-lite": "^0.6.3",
+        "on-finished": "^2.4.1",
+        "qs": "^6.14.0",
+        "raw-body": "^3.0.0",
+        "type-is": "^2.0.0"
+      },
+      "engines": {
+        "node": ">=18"
+      }
+    },
+    "node_modules/bytes": {
+      "version": "3.1.2",
+      "resolved": "https://registry.npmjs.org/bytes/-/bytes-3.1.2.tgz",
+      "integrity": "sha512-/Nf7TyzTx6S3yRJObOAV7956r8cr2+Oj8AC5dt8wSP3BQAoeX58NoHyCU8P8zGkNXStjTSi6fzO6F0pBdcYbEg==",
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+      }
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+      "dependencies": {
+        "es-errors": "^1.3.0",
+        "function-bind": "^1.1.2"
+      },
+      "engines": {
+        "node": ">= 0.4"
+      }
+    },
+    "node_modules/call-bound": {
+      "version": "1.0.4",
+      "resolved": "https://registry.npmjs.org/call-bound/-/call-bound-1.0.4.tgz",
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+      "dependencies": {
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+      },
+      "engines": {
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+      },
+      "funding": {
+        "url": "https://github.com/sponsors/ljharb"
+      }
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+      "resolved": "https://registry.npmjs.org/side-channel-list/-/side-channel-list-1.0.0.tgz",
+      "integrity": "sha512-FCLHtRD/gnpCiCHEiJLOwdmFP+wzCmDEkc9y7NsYxeF4u7Btsn1ZuwgwJGxImImHicJArLP4R0yX4c2KCrMrTA==",
+      "dependencies": {
+        "es-errors": "^1.3.0",
+        "object-inspect": "^1.13.3"
+      },
+      "engines": {
+        "node": ">= 0.4"
+      },
+      "funding": {
+        "url": "https://github.com/sponsors/ljharb"
+      }
+    },
+    "node_modules/side-channel-map": {
+      "version": "1.0.1",
+      "resolved": "https://registry.npmjs.org/side-channel-map/-/side-channel-map-1.0.1.tgz",
+      "integrity": "sha512-VCjCNfgMsby3tTdo02nbjtM/ewra6jPHmpThenkTYh8pG9ucZ/1P8So4u4FGBek/BjpOVsDCMoLA/iuBKIFXRA==",
+      "dependencies": {
+        "call-bound": "^1.0.2",
+        "es-errors": "^1.3.0",
+        "get-intrinsic": "^1.2.5",
+        "object-inspect": "^1.13.3"
+      },
+      "engines": {
+        "node": ">= 0.4"
+      },
+      "funding": {
+        "url": "https://github.com/sponsors/ljharb"
+      }
+    },
+    "node_modules/side-channel-weakmap": {
+      "version": "1.0.2",
+      "resolved": "https://registry.npmjs.org/side-channel-weakmap/-/side-channel-weakmap-1.0.2.tgz",
+      "integrity": "sha512-WPS/HvHQTYnHisLo9McqBHOJk2FkHO/tlpvldyrnem4aeQp4hai3gythswg6p01oSoTl58rcpiFAjF2br2Ak2A==",
+      "dependencies": {
+        "call-bound": "^1.0.2",
+        "es-errors": "^1.3.0",
+        "get-intrinsic": "^1.2.5",
+        "object-inspect": "^1.13.3",
+        "side-channel-map": "^1.0.1"
+      },
+      "engines": {
+        "node": ">= 0.4"
+      },
+      "funding": {
+        "url": "https://github.com/sponsors/ljharb"
+      }
+    },
+    "node_modules/statuses": {
+      "version": "2.0.2",
+      "resolved": "https://registry.npmjs.org/statuses/-/statuses-2.0.2.tgz",
+      "integrity": "sha512-DvEy55V3DB7uknRo+4iOGT5fP1slR8wQohVdknigZPMpMstaKJQWhwiYBACJE3Ul2pTnATihhBYnRhZQHGBiRw==",
+      "engines": {
+        "node": ">= 0.8"
+      }
+    },
+    "node_modules/toidentifier": {
+      "version": "1.0.1",
+      "resolved": "https://registry.npmjs.org/toidentifier/-/toidentifier-1.0.1.tgz",
+      "integrity": "sha512-o5sSPKEkg/DIQNmH43V0/uerLrpzVedkUh8tGNvaeXpfpuwjKenlSox/2O/BTlZUtEe+JG7s5YhEz608PlAHRA==",
+      "engines": {
+        "node": ">=0.6"
+      }
+    },
+    "node_modules/type-is": {
+      "version": "2.0.1",
+      "resolved": "https://registry.npmjs.org/type-is/-/type-is-2.0.1.tgz",
+      "integrity": "sha512-OZs6gsjF4vMp32qrCbiVSkrFmXtG/AZhY3t0iAMrMBiAZyV9oALtXO8hsrHbMXF9x6L3grlFuwW2oAz7cav+Gw==",
+      "dependencies": {
+        "content-type": "^1.0.5",
+        "media-typer": "^1.1.0",
+        "mime-types": "^3.0.0"
+      },
+      "engines": {
+        "node": ">= 0.6"
+      }
+    },
+    "node_modules/unpipe": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/unpipe/-/unpipe-1.0.0.tgz",
+      "integrity": "sha512-pjy2bYhSsufwWlKwPc+l3cN7+wuJlK6uz0YdJEOlQDbl6jo/YlPi4mb8agUkVC8BF7V8NuzeyPNqRksA3hztKQ==",
+      "engines": {
+        "node": ">= 0.8"
+      }
+    },
+    "node_modules/vary": {
+      "version": "1.1.2",
+      "resolved": "https://registry.npmjs.org/vary/-/vary-1.1.2.tgz",
+      "integrity": "sha512-BNGbWLfd0eUPabhkXUVm0j8uuvREyTh5ovRa/dyow/BqAbZJyC+5fU+IzQOzmAKzYqYRAISoRhdQr3eIZ/PXqg==",
+      "engines": {
+        "node": ">= 0.8"
+      }
+    },
+    "node_modules/wrappy": {
+      "version": "1.0.2",
+      "resolved": "https://registry.npmjs.org/wrappy/-/wrappy-1.0.2.tgz",
+      "integrity": "sha512-l4Sp/DRseor9wL6EvV2+TuQn63dMkPjZ/sp9XkghTEbV9KlPS1xUsZ3u7/IQO4wxtcFB4bgpQPRcR3QCvezPcQ=="
+    }
+  }
+}
diff --git a/backend/node_modules/accepts/HISTORY.md b/backend/node_modules/accepts/HISTORY.md
new file mode 100644
index 0000000..627a81d
--- /dev/null
+++ b/backend/node_modules/accepts/HISTORY.md
@@ -0,0 +1,250 @@
+2.0.0 / 2024-08-31
+==================
+
+  * Drop node <18 support
+  * deps: mime-types@^3.0.0
+  * deps: negotiator@^1.0.0
+
+1.3.8 / 2022-02-02
+==================
+
+  * deps: mime-types@~2.1.34
+    - deps: mime-db@~1.51.0
+  * deps: negotiator@0.6.3
+
+1.3.7 / 2019-04-29
+==================
+
+  * deps: negotiator@0.6.2
+    - Fix sorting charset, encoding, and language with extra parameters
+
+1.3.6 / 2019-04-28
+==================
+
+  * deps: mime-types@~2.1.24
+    - deps: mime-db@~1.40.0
+
+1.3.5 / 2018-02-28
+==================
+
+  * deps: mime-types@~2.1.18
+    - deps: mime-db@~1.33.0
+
+1.3.4 / 2017-08-22
+==================
+
+  * deps: mime-types@~2.1.16
+    - deps: mime-db@~1.29.0
+
+1.3.3 / 2016-05-02
+==================
+
+  * deps: mime-types@~2.1.11
+    - deps: mime-db@~1.23.0
+  * deps: negotiator@0.6.1
+    - perf: improve `Accept` parsing speed
+    - perf: improve `Accept-Charset` parsing speed
+    - perf: improve `Accept-Encoding` parsing speed
+    - perf: improve `Accept-Language` parsing speed
+
+1.3.2 / 2016-03-08
+==================
+
+  * deps: mime-types@~2.1.10
+    - Fix extension of `application/dash+xml`
+    - Update primary extension for `audio/mp4`
+    - deps: mime-db@~1.22.0
+
+1.3.1 / 2016-01-19
+==================
+
+  * deps: mime-types@~2.1.9
+    - deps: mime-db@~1.21.0
+
+1.3.0 / 2015-09-29
+==================
+
+  * deps: mime-types@~2.1.7
+    - deps: mime-db@~1.19.0
+  * deps: negotiator@0.6.0
+    - Fix including type extensions in parameters in `Accept` parsing
+    - Fix parsing `Accept` parameters with quoted equals
+    - Fix parsing `Accept` parameters with quoted semicolons
+    - Lazy-load modules from main entry point
+    - perf: delay type concatenation until needed
+    - perf: enable strict mode
+    - perf: hoist regular expressions
+    - perf: remove closures getting spec properties
+    - perf: remove a closure from media type parsing
+    - perf: remove property delete from media type parsing
+
+1.2.13 / 2015-09-06
+===================
+
+  * deps: mime-types@~2.1.6
+    - deps: mime-db@~1.18.0
+
+1.2.12 / 2015-07-30
+===================
+
+  * deps: mime-types@~2.1.4
+    - deps: mime-db@~1.16.0
+
+1.2.11 / 2015-07-16
+===================
+
+  * deps: mime-types@~2.1.3
+    - deps: mime-db@~1.15.0
+
+1.2.10 / 2015-07-01
+===================
+
+  * deps: mime-types@~2.1.2
+    - deps: mime-db@~1.14.0
+
+1.2.9 / 2015-06-08
+==================
+
+  * deps: mime-types@~2.1.1
+    - perf: fix deopt during mapping
+
+1.2.8 / 2015-06-07
+==================
+
+  * deps: mime-types@~2.1.0
+    - deps: mime-db@~1.13.0
+  * perf: avoid argument reassignment & argument slice
+  * perf: avoid negotiator recursive construction
+  * perf: enable strict mode
+  * perf: remove unnecessary bitwise operator
+
+1.2.7 / 2015-05-10
+==================
+
+  * deps: negotiator@0.5.3
+    - Fix media type parameter matching to be case-insensitive
+
+1.2.6 / 2015-05-07
+==================
+
+  * deps: mime-types@~2.0.11
+    - deps: mime-db@~1.9.1
+  * deps: negotiator@0.5.2
+    - Fix comparing media types with quoted values
+    - Fix splitting media types with quoted commas
+
+1.2.5 / 2015-03-13
+==================
+
+  * deps: mime-types@~2.0.10
+    - deps: mime-db@~1.8.0
+
+1.2.4 / 2015-02-14
+==================
+
+  * Support Node.js 0.6
+  * deps: mime-types@~2.0.9
+    - deps: mime-db@~1.7.0
+  * deps: negotiator@0.5.1
+    - Fix preference sorting to be stable for long acceptable lists
+
+1.2.3 / 2015-01-31
+==================
+
+  * deps: mime-types@~2.0.8
+    - deps: mime-db@~1.6.0
+
+1.2.2 / 2014-12-30
+==================
+
+  * deps: mime-types@~2.0.7
+    - deps: mime-db@~1.5.0
+
+1.2.1 / 2014-12-30
+==================
+
+  * deps: mime-types@~2.0.5
+    - deps: mime-db@~1.3.1
+
+1.2.0 / 2014-12-19
+==================
+
+  * deps: negotiator@0.5.0
+    - Fix list return order when large accepted list
+    - Fix missing identity encoding when q=0 exists
+    - Remove dynamic building of Negotiator class
+
+1.1.4 / 2014-12-10
+==================
+
+  * deps: mime-types@~2.0.4
+    - deps: mime-db@~1.3.0
+
+1.1.3 / 2014-11-09
+==================
+
+  * deps: mime-types@~2.0.3
+    - deps: mime-db@~1.2.0
+
+1.1.2 / 2014-10-14
+==================
+
+  * deps: negotiator@0.4.9
+    - Fix error when media type has invalid parameter
+
+1.1.1 / 2014-09-28
+==================
+
+  * deps: mime-types@~2.0.2
+    - deps: mime-db@~1.1.0
+  * deps: negotiator@0.4.8
+    - Fix all negotiations to be case-insensitive
+    - Stable sort preferences of same quality according to client order
+
+1.1.0 / 2014-09-02
+==================
+
+  * update `mime-types`
+
+1.0.7 / 2014-07-04
+==================
+
+  * Fix wrong type returned from `type` when match after unknown extension
+
+1.0.6 / 2014-06-24
+==================
+
+  * deps: negotiator@0.4.7
+
+1.0.5 / 2014-06-20
+==================
+
+ * fix crash when unknown extension given
+
+1.0.4 / 2014-06-19
+==================
+
+  * use `mime-types`
+
+1.0.3 / 2014-06-11
+==================
+
+  * deps: negotiator@0.4.6
+    - Order by specificity when quality is the same
+
+1.0.2 / 2014-05-29
+==================
+
+  * Fix interpretation when header not in request
+  * deps: pin negotiator@0.4.5
+
+1.0.1 / 2014-01-18
+==================
+
+  * Identity encoding isn't always acceptable
+  * deps: negotiator@~0.4.0
+
+1.0.0 / 2013-12-27
+==================
+
+  * Genesis
diff --git a/backend/node_modules/accepts/LICENSE b/backend/node_modules/accepts/LICENSE
new file mode 100644
index 0000000..0616607
--- /dev/null
+++ b/backend/node_modules/accepts/LICENSE
@@ -0,0 +1,23 @@
+(The MIT License)
+
+Copyright (c) 2014 Jonathan Ong <me@jongleberry.com>
+Copyright (c) 2015 Douglas Christopher Wilson <doug@somethingdoug.com>
+
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of this software and associated documentation files (the
+'Software'), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sublicense, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to
+the following conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
diff --git a/backend/node_modules/accepts/README.md b/backend/node_modules/accepts/README.md
new file mode 100644
index 0000000..f3f10c4
--- /dev/null
+++ b/backend/node_modules/accepts/README.md
@@ -0,0 +1,140 @@
+# accepts
+
+[![NPM Version][npm-version-image]][npm-url]
+[![NPM Downloads][npm-downloads-image]][npm-url]
+[![Node.js Version][node-version-image]][node-version-url]
+[![Build Status][github-actions-ci-image]][github-actions-ci-url]
+[![Test Coverage][coveralls-image]][coveralls-url]
+
+Higher level content negotiation based on [negotiator](https://www.npmjs.com/package/negotiator).
+Extracted from [koa](https://www.npmjs.com/package/koa) for general use.
+
+In addition to negotiator, it allows:
+
+- Allows types as an array or arguments list, ie `(['text/html', 'application/json'])`
+  as well as `('text/html', 'application/json')`.
+- Allows type shorthands such as `json`.
+- Returns `false` when no types match
+- Treats non-existent headers as `*`
+
+## Installation
+
+This is a [Node.js](https://nodejs.org/en/) module available through the
+[npm registry](https://www.npmjs.com/). Installation is done using the
+[`npm install` command](https://docs.npmjs.com/getting-started/installing-npm-packages-locally):
+
+```sh
+$ npm install accepts
+```
+
+## API
+
+```js
+var accepts = require('accepts')
+```
+
+### accepts(req)
+
+Create a new `Accepts` object for the given `req`.
+
+#### .charset(charsets)
+
+Return the first accepted charset. If nothing in `charsets` is accepted,
+then `false` is returned.
+
+#### .charsets()
+
+Return the charsets that the request accepts, in the order of the client's
+preference (most preferred first).
+
+#### .encoding(encodings)
+
+Return the first accepted encoding. If nothing in `encodings` is accepted,
+then `false` is returned.
+
+#### .encodings()
+
+Return the encodings that the request accepts, in the order of the client's
+preference (most preferred first).
+
+#### .language(languages)
+
+Return the first accepted language. If nothing in `languages` is accepted,
+then `false` is returned.
+
+#### .languages()
+
+Return the languages that the request accepts, in the order of the client's
+preference (most preferred first).
+
+#### .type(types)
+
+Return the first accepted type (and it is returned as the same text as what
+appears in the `types` array). If nothing in `types` is accepted, then `false`
+is returned.
+
+The `types` array can contain full MIME types or file extensions. Any value
+that is not a full MIME type is passed to `require('mime-types').lookup`.
+
+#### .types()
+
+Return the types that the request accepts, in the order of the client's
+preference (most preferred first).
+
+## Examples
+
+### Simple type negotiation
+
+This simple example shows how to use `accepts` to return a different typed
+respond body based on what the client wants to accept. The server lists it's
+preferences in order and will get back the best match between the client and
+server.
+
+```js
+var accepts = require('accepts')
+var http = require('http')
+
+function app (req, res) {
+  var accept = accepts(req)
+
+  // the order of this list is significant; should be server preferred order
+  switch (accept.type(['json', 'html'])) {
+    case 'json':
+      res.setHeader('Content-Type', 'application/json')
+      res.write('{"hello":"world!"}')
+      break
+    case 'html':
+      res.setHeader('Content-Type', 'text/html')
+      res.write('<b>hello, world!</b>')
+      break
+    default:
+      // the fallback is text/plain, so no need to specify it above
+      res.setHeader('Content-Type', 'text/plain')
+      res.write('hello, world!')
+      break
+  }
+
+  res.end()
+}
+
+http.createServer(app).listen(3000)
+```
+
+You can test this out with the cURL program:
+```sh
+curl -I -H'Accept: text/html' http://localhost:3000/
+```
+
+## License
+
+[MIT](LICENSE)
+
+[coveralls-image]: https://badgen.net/coveralls/c/github/jshttp/accepts/master
+[coveralls-url]: https://coveralls.io/r/jshttp/accepts?branch=master
+[github-actions-ci-image]: https://badgen.net/github/checks/jshttp/accepts/master?label=ci
+[github-actions-ci-url]: https://github.com/jshttp/accepts/actions/workflows/ci.yml
+[node-version-image]: https://badgen.net/npm/node/accepts
+[node-version-url]: https://nodejs.org/en/download
+[npm-downloads-image]: https://badgen.net/npm/dm/accepts
+[npm-url]: https://npmjs.org/package/accepts
+[npm-version-image]: https://badgen.net/npm/v/accepts
diff --git a/backend/node_modules/accepts/index.js b/backend/node_modules/accepts/index.js
new file mode 100644
index 0000000..4f2840c
--- /dev/null
+++ b/backend/node_modules/accepts/index.js
@@ -0,0 +1,238 @@
+/*!
+ * accepts
+ * Copyright(c) 2014 Jonathan Ong
+ * Copyright(c) 2015 Douglas Christopher Wilson
+ * MIT Licensed
+ */
+
+'use strict'
+
+/**
+ * Module dependencies.
+ * @private
+ */
+
+var Negotiator = require('negotiator')
+var mime = require('mime-types')
+
+/**
+ * Module exports.
+ * @public
+ */
+
+module.exports = Accepts
+
+/**
+ * Create a new Accepts object for the given req.
+ *
+ * @param {object} req
+ * @public
+ */
+
+function Accepts (req) {
+  if (!(this instanceof Accepts)) {
+    return new Accepts(req)
+  }
+
+  this.headers = req.headers
+  this.negotiator = new Negotiator(req)
+}
+
+/**
+ * Check if the given `type(s)` is acceptable, returning
+ * the best match when true, otherwise `undefined`, in which
+ * case you should respond with 406 "Not Acceptable".
+ *
+ * The `type` value may be a single mime type string
+ * such as "application/json", the extension name
+ * such as "json" or an array `["json", "html", "text/plain"]`. When a list
+ * or array is given the _best_ match, if any is returned.
+ *
+ * Examples:
+ *
+ *     // Accept: text/html
+ *     this.types('html');
+ *     // => "html"
+ *
+ *     // Accept: text/*, application/json
+ *     this.types('html');
+ *     // => "html"
+ *     this.types('text/html');
+ *     // => "text/html"
+ *     this.types('json', 'text');
+ *     // => "json"
+ *     this.types('application/json');
+ *     // => "application/json"
+ *
+ *     // Accept: text/*, application/json
+ *     this.types('image/png');
+ *     this.types('png');
+ *     // => undefined
+ *
+ *     // Accept: text/*;q=.5, application/json
+ *     this.types(['html', 'json']);
+ *     this.types('html', 'json');
+ *     // => "json"
+ *
+ * @param {String|Array} types...
+ * @return {String|Array|Boolean}
+ * @public
+ */
+
+Accepts.prototype.type =
+Accepts.prototype.types = function (types_) {
+  var types = types_
+
+  // support flattened arguments
+  if (types && !Array.isArray(types)) {
+    types = new Array(arguments.length)
+    for (var i = 0; i < types.length; i++) {
+      types[i] = arguments[i]
+    }
+  }
+
+  // no types, return all requested types
+  if (!types || types.length === 0) {
+    return this.negotiator.mediaTypes()
+  }
+
+  // no accept header, return first given type
+  if (!this.headers.accept) {
+    return types[0]
+  }
+
+  var mimes = types.map(extToMime)
+  var accepts = this.negotiator.mediaTypes(mimes.filter(validMime))
+  var first = accepts[0]
+
+  return first
+    ? types[mimes.indexOf(first)]
+    : false
+}
+
+/**
+ * Return accepted encodings or best fit based on `encodings`.
+ *
+ * Given `Accept-Encoding: gzip, deflate`
+ * an array sorted by quality is returned:
+ *
+ *     ['gzip', 'deflate']
+ *
+ * @param {String|Array} encodings...
+ * @return {String|Array}
+ * @public
+ */
+
+Accepts.prototype.encoding =
+Accepts.prototype.encodings = function (encodings_) {
+  var encodings = encodings_
+
+  // support flattened arguments
+  if (encodings && !Array.isArray(encodings)) {
+    encodings = new Array(arguments.length)
+    for (var i = 0; i < encodings.length; i++) {
+      encodings[i] = arguments[i]
+    }
+  }
+
+  // no encodings, return all requested encodings
+  if (!encodings || encodings.length === 0) {
+    return this.negotiator.encodings()
+  }
+
+  return this.negotiator.encodings(encodings)[0] || false
+}
+
+/**
+ * Return accepted charsets or best fit based on `charsets`.
+ *
+ * Given `Accept-Charset: utf-8, iso-8859-1;q=0.2, utf-7;q=0.5`
+ * an array sorted by quality is returned:
+ *
+ *     ['utf-8', 'utf-7', 'iso-8859-1']
+ *
+ * @param {String|Array} charsets...
+ * @return {String|Array}
+ * @public
+ */
+
+Accepts.prototype.charset =
+Accepts.prototype.charsets = function (charsets_) {
+  var charsets = charsets_
+
+  // support flattened arguments
+  if (charsets && !Array.isArray(charsets)) {
+    charsets = new Array(arguments.length)
+    for (var i = 0; i < charsets.length; i++) {
+      charsets[i] = arguments[i]
+    }
+  }
+
+  // no charsets, return all requested charsets
+  if (!charsets || charsets.length === 0) {
+    return this.negotiator.charsets()
+  }
+
+  return this.negotiator.charsets(charsets)[0] || false
+}
+
+/**
+ * Return accepted languages or best fit based on `langs`.
+ *
+ * Given `Accept-Language: en;q=0.8, es, pt`
+ * an array sorted by quality is returned:
+ *
+ *     ['es', 'pt', 'en']
+ *
+ * @param {String|Array} langs...
+ * @return {Array|String}
+ * @public
+ */
+
+Accepts.prototype.lang =
+Accepts.prototype.langs =
+Accepts.prototype.language =
+Accepts.prototype.languages = function (languages_) {
+  var languages = languages_
+
+  // support flattened arguments
+  if (languages && !Array.isArray(languages)) {
+    languages = new Array(arguments.length)
+    for (var i = 0; i < languages.length; i++) {
+      languages[i] = arguments[i]
+    }
+  }
+
+  // no languages, return all requested languages
+  if (!languages || languages.length === 0) {
+    return this.negotiator.languages()
+  }
+
+  return this.negotiator.languages(languages)[0] || false
+}
+
+/**
+ * Convert extnames to mime.
+ *
+ * @param {String} type
+ * @return {String}
+ * @private
+ */
+
+function extToMime (type) {
+  return type.indexOf('/') === -1
+    ? mime.lookup(type)
+    : type
+}
+
+/**
+ * Check if mime is valid.
+ *
+ * @param {String} type
+ * @return {Boolean}
+ * @private
+ */
+
+function validMime (type) {
+  return typeof type === 'string'
+}
diff --git a/backend/node_modules/accepts/package.json b/backend/node_modules/accepts/package.json
new file mode 100644
index 0000000..b35b262
--- /dev/null
+++ b/backend/node_modules/accepts/package.json
@@ -0,0 +1,47 @@
+{
+  "name": "accepts",
+  "description": "Higher-level content negotiation",
+  "version": "2.0.0",
+  "contributors": [
+    "Douglas Christopher Wilson <doug@somethingdoug.com>",
+    "Jonathan Ong <me@jongleberry.com> (http://jongleberry.com)"
+  ],
+  "license": "MIT",
+  "repository": "jshttp/accepts",
+  "dependencies": {
+    "mime-types": "^3.0.0",
+    "negotiator": "^1.0.0"
+  },
+  "devDependencies": {
+    "deep-equal": "1.0.1",
+    "eslint": "7.32.0",
+    "eslint-config-standard": "14.1.1",
+    "eslint-plugin-import": "2.25.4",
+    "eslint-plugin-markdown": "2.2.1",
+    "eslint-plugin-node": "11.1.0",
+    "eslint-plugin-promise": "4.3.1",
+    "eslint-plugin-standard": "4.1.0",
+    "mocha": "9.2.0",
+    "nyc": "15.1.0"
+  },
+  "files": [
+    "LICENSE",
+    "HISTORY.md",
+    "index.js"
+  ],
+  "engines": {
+    "node": ">= 0.6"
+  },
+  "scripts": {
+    "lint": "eslint .",
+    "test": "mocha --reporter spec --check-leaks --bail test/",
+    "test-ci": "nyc --reporter=lcov --reporter=text npm test",
+    "test-cov": "nyc --reporter=html --reporter=text npm test"
+  },
+  "keywords": [
+    "content",
+    "negotiation",
+    "accept",
+    "accepts"
+  ]
+}
diff --git a/backend/node_modules/body-parser/HISTORY.md b/backend/node_modules/body-parser/HISTORY.md
new file mode 100644
index 0000000..17dd110
--- /dev/null
+++ b/backend/node_modules/body-parser/HISTORY.md
@@ -0,0 +1,731 @@
+2.2.0 / 2025-03-27
+=========================
+
+* refactor: normalize common options for all parsers
+* deps:
+  * iconv-lite@^0.6.3
+
+2.1.0 / 2025-02-10
+=========================
+
+* deps:
+  * type-is@^2.0.0
+  * debug@^4.4.0
+  * Removed destroy
+* refactor: prefix built-in node module imports
+* use the node require cache instead of custom caching
+
+2.0.2 / 2024-10-31
+=========================
+
+* remove `unpipe` package and use native `unpipe()` method
+
+2.0.1 / 2024-09-10
+=========================
+
+* Restore expected behavior `extended` to `false`
+
+2.0.0 / 2024-09-10
+=========================
+* Propagate changes from 1.20.3 
+* add brotli support #406
+* Breaking Change: Node.js 18 is the minimum supported version
+
+2.0.0-beta.2 / 2023-02-23
+=========================
+
+This incorporates all changes after 1.19.1 up to 1.20.2.
+
+  * Remove deprecated `bodyParser()` combination middleware
+  * deps: debug@3.1.0
+    - Add `DEBUG_HIDE_DATE` environment variable
+    - Change timer to per-namespace instead of global
+    - Change non-TTY date format
+    - Remove `DEBUG_FD` environment variable support
+    - Support 256 namespace colors
+  * deps: iconv-lite@0.5.2
+    - Add encoding cp720
+    - Add encoding UTF-32
+  * deps: raw-body@3.0.0-beta.1
+
+2.0.0-beta.1 / 2021-12-17
+=========================
+
+  * Drop support for Node.js 0.8
+  * `req.body` is no longer always initialized to `{}`
+    - it is left `undefined` unless a body is parsed
+  * `urlencoded` parser now defaults `extended` to `false`
+  * Use `on-finished` to determine when body read
+
+1.20.3 / 2024-09-10
+===================
+
+  * deps: qs@6.13.0
+  * add `depth` option to customize the depth level in the parser
+  * IMPORTANT: The default `depth` level for parsing URL-encoded data is now `32` (previously was `Infinity`)
+ 
+1.20.2 / 2023-02-21
+===================
+
+  * Fix strict json error message on Node.js 19+
+  * deps: content-type@~1.0.5
+    - perf: skip value escaping when unnecessary
+  * deps: raw-body@2.5.2
+
+1.20.1 / 2022-10-06
+===================
+
+  * deps: qs@6.11.0
+  * perf: remove unnecessary object clone
+
+1.20.0 / 2022-04-02
+===================
+
+  * Fix error message for json parse whitespace in `strict`
+  * Fix internal error when inflated body exceeds limit
+  * Prevent loss of async hooks context
+  * Prevent hanging when request already read
+  * deps: depd@2.0.0
+    - Replace internal `eval` usage with `Function` constructor
+    - Use instance methods on `process` to check for listeners
+  * deps: http-errors@2.0.0
+    - deps: depd@2.0.0
+    - deps: statuses@2.0.1
+  * deps: on-finished@2.4.1
+  * deps: qs@6.10.3
+  * deps: raw-body@2.5.1
+    - deps: http-errors@2.0.0
+
+1.19.2 / 2022-02-15
+===================
+
+  * deps: bytes@3.1.2
+  * deps: qs@6.9.7
+    * Fix handling of `__proto__` keys
+  * deps: raw-body@2.4.3
+    - deps: bytes@3.1.2
+
+1.19.1 / 2021-12-10
+===================
+
+  * deps: bytes@3.1.1
+  * deps: http-errors@1.8.1
+    - deps: inherits@2.0.4
+    - deps: toidentifier@1.0.1
+    - deps: setprototypeof@1.2.0
+  * deps: qs@6.9.6
+  * deps: raw-body@2.4.2
+    - deps: bytes@3.1.1
+    - deps: http-errors@1.8.1
+  * deps: safe-buffer@5.2.1
+  * deps: type-is@~1.6.18
+
+1.19.0 / 2019-04-25
+===================
+
+  * deps: bytes@3.1.0
+    - Add petabyte (`pb`) support
+  * deps: http-errors@1.7.2
+    - Set constructor name when possible
+    - deps: setprototypeof@1.1.1
+    - deps: statuses@'>= 1.5.0 < 2'
+  * deps: iconv-lite@0.4.24
+    - Added encoding MIK
+  * deps: qs@6.7.0
+    - Fix parsing array brackets after index
+  * deps: raw-body@2.4.0
+    - deps: bytes@3.1.0
+    - deps: http-errors@1.7.2
+    - deps: iconv-lite@0.4.24
+  * deps: type-is@~1.6.17
+    - deps: mime-types@~2.1.24
+    - perf: prevent internal `throw` on invalid type
+
+1.18.3 / 2018-05-14
+===================
+
+  * Fix stack trace for strict json parse error
+  * deps: depd@~1.1.2
+    - perf: remove argument reassignment
+  * deps: http-errors@~1.6.3
+    - deps: depd@~1.1.2
+    - deps: setprototypeof@1.1.0
+    - deps: statuses@'>= 1.3.1 < 2'
+  * deps: iconv-lite@0.4.23
+    - Fix loading encoding with year appended
+    - Fix deprecation warnings on Node.js 10+
+  * deps: qs@6.5.2
+  * deps: raw-body@2.3.3
+    - deps: http-errors@1.6.3
+    - deps: iconv-lite@0.4.23
+  * deps: type-is@~1.6.16
+    - deps: mime-types@~2.1.18
+
+1.18.2 / 2017-09-22
+===================
+
+  * deps: debug@2.6.9
+  * perf: remove argument reassignment
+
+1.18.1 / 2017-09-12
+===================
+
+  * deps: content-type@~1.0.4
+    - perf: remove argument reassignment
+    - perf: skip parameter parsing when no parameters
+  * deps: iconv-lite@0.4.19
+    - Fix ISO-8859-1 regression
+    - Update Windows-1255
+  * deps: qs@6.5.1
+    - Fix parsing & compacting very deep objects
+  * deps: raw-body@2.3.2
+    - deps: iconv-lite@0.4.19
+
+1.18.0 / 2017-09-08
+===================
+
+  * Fix JSON strict violation error to match native parse error
+  * Include the `body` property on verify errors
+  * Include the `type` property on all generated errors
+  * Use `http-errors` to set status code on errors
+  * deps: bytes@3.0.0
+  * deps: debug@2.6.8
+  * deps: depd@~1.1.1
+    - Remove unnecessary `Buffer` loading
+  * deps: http-errors@~1.6.2
+    - deps: depd@1.1.1
+  * deps: iconv-lite@0.4.18
+    - Add support for React Native
+    - Add a warning if not loaded as utf-8
+    - Fix CESU-8 decoding in Node.js 8
+    - Improve speed of ISO-8859-1 encoding
+  * deps: qs@6.5.0
+  * deps: raw-body@2.3.1
+    - Use `http-errors` for standard emitted errors
+    - deps: bytes@3.0.0
+    - deps: iconv-lite@0.4.18
+    - perf: skip buffer decoding on overage chunk
+  * perf: prevent internal `throw` when missing charset
+
+1.17.2 / 2017-05-17
+===================
+
+  * deps: debug@2.6.7
+    - Fix `DEBUG_MAX_ARRAY_LENGTH`
+    - deps: ms@2.0.0
+  * deps: type-is@~1.6.15
+    - deps: mime-types@~2.1.15
+
+1.17.1 / 2017-03-06
+===================
+
+  * deps: qs@6.4.0
+    - Fix regression parsing keys starting with `[`
+
+1.17.0 / 2017-03-01
+===================
+
+  * deps: http-errors@~1.6.1
+    - Make `message` property enumerable for `HttpError`s
+    - deps: setprototypeof@1.0.3
+  * deps: qs@6.3.1
+    - Fix compacting nested arrays
+
+1.16.1 / 2017-02-10
+===================
+
+  * deps: debug@2.6.1
+    - Fix deprecation messages in WebStorm and other editors
+    - Undeprecate `DEBUG_FD` set to `1` or `2`
+
+1.16.0 / 2017-01-17
+===================
+
+  * deps: debug@2.6.0
+    - Allow colors in workers
+    - Deprecated `DEBUG_FD` environment variable
+    - Fix error when running under React Native
+    - Use same color for same namespace
+    - deps: ms@0.7.2
+  * deps: http-errors@~1.5.1
+    - deps: inherits@2.0.3
+    - deps: setprototypeof@1.0.2
+    - deps: statuses@'>= 1.3.1 < 2'
+  * deps: iconv-lite@0.4.15
+    - Added encoding MS-31J
+    - Added encoding MS-932
+    - Added encoding MS-936
+    - Added encoding MS-949
+    - Added encoding MS-950
+    - Fix GBK/GB18030 handling of Euro character
+  * deps: qs@6.2.1
+    - Fix array parsing from skipping empty values
+  * deps: raw-body@~2.2.0
+    - deps: iconv-lite@0.4.15
+  * deps: type-is@~1.6.14
+    - deps: mime-types@~2.1.13
+
+1.15.2 / 2016-06-19
+===================
+
+  * deps: bytes@2.4.0
+  * deps: content-type@~1.0.2
+    - perf: enable strict mode
+  * deps: http-errors@~1.5.0
+    - Use `setprototypeof` module to replace `__proto__` setting
+    - deps: statuses@'>= 1.3.0 < 2'
+    - perf: enable strict mode
+  * deps: qs@6.2.0
+  * deps: raw-body@~2.1.7
+    - deps: bytes@2.4.0
+    - perf: remove double-cleanup on happy path
+  * deps: type-is@~1.6.13
+    - deps: mime-types@~2.1.11
+
+1.15.1 / 2016-05-05
+===================
+
+  * deps: bytes@2.3.0
+    - Drop partial bytes on all parsed units
+    - Fix parsing byte string that looks like hex
+  * deps: raw-body@~2.1.6
+    - deps: bytes@2.3.0
+  * deps: type-is@~1.6.12
+    - deps: mime-types@~2.1.10
+
+1.15.0 / 2016-02-10
+===================
+
+  * deps: http-errors@~1.4.0
+    - Add `HttpError` export, for `err instanceof createError.HttpError`
+    - deps: inherits@2.0.1
+    - deps: statuses@'>= 1.2.1 < 2'
+  * deps: qs@6.1.0
+  * deps: type-is@~1.6.11
+    - deps: mime-types@~2.1.9
+
+1.14.2 / 2015-12-16
+===================
+
+  * deps: bytes@2.2.0
+  * deps: iconv-lite@0.4.13
+  * deps: qs@5.2.0
+  * deps: raw-body@~2.1.5
+    - deps: bytes@2.2.0
+    - deps: iconv-lite@0.4.13
+  * deps: type-is@~1.6.10
+    - deps: mime-types@~2.1.8
+
+1.14.1 / 2015-09-27
+===================
+
+  * Fix issue where invalid charset results in 400 when `verify` used
+  * deps: iconv-lite@0.4.12
+    - Fix CESU-8 decoding in Node.js 4.x
+  * deps: raw-body@~2.1.4
+    - Fix masking critical errors from `iconv-lite`
+    - deps: iconv-lite@0.4.12
+  * deps: type-is@~1.6.9
+    - deps: mime-types@~2.1.7
+
+1.14.0 / 2015-09-16
+===================
+
+  * Fix JSON strict parse error to match syntax errors
+  * Provide static `require` analysis in `urlencoded` parser
+  * deps: depd@~1.1.0
+    - Support web browser loading
+  * deps: qs@5.1.0
+  * deps: raw-body@~2.1.3
+    - Fix sync callback when attaching data listener causes sync read
+  * deps: type-is@~1.6.8
+    - Fix type error when given invalid type to match against
+    - deps: mime-types@~2.1.6
+
+1.13.3 / 2015-07-31
+===================
+
+  * deps: type-is@~1.6.6
+    - deps: mime-types@~2.1.4
+
+1.13.2 / 2015-07-05
+===================
+
+  * deps: iconv-lite@0.4.11
+  * deps: qs@4.0.0
+    - Fix dropping parameters like `hasOwnProperty`
+    - Fix user-visible incompatibilities from 3.1.0
+    - Fix various parsing edge cases
+  * deps: raw-body@~2.1.2
+    - Fix error stack traces to skip `makeError`
+    - deps: iconv-lite@0.4.11
+  * deps: type-is@~1.6.4
+    - deps: mime-types@~2.1.2
+    - perf: enable strict mode
+    - perf: remove argument reassignment
+
+1.13.1 / 2015-06-16
+===================
+
+  * deps: qs@2.4.2
+    - Downgraded from 3.1.0 because of user-visible incompatibilities
+
+1.13.0 / 2015-06-14
+===================
+
+  * Add `statusCode` property on `Error`s, in addition to `status`
+  * Change `type` default to `application/json` for JSON parser
+  * Change `type` default to `application/x-www-form-urlencoded` for urlencoded parser
+  * Provide static `require` analysis
+  * Use the `http-errors` module to generate errors
+  * deps: bytes@2.1.0
+    - Slight optimizations
+  * deps: iconv-lite@0.4.10
+    - The encoding UTF-16 without BOM now defaults to UTF-16LE when detection fails
+    - Leading BOM is now removed when decoding
+  * deps: on-finished@~2.3.0
+    - Add defined behavior for HTTP `CONNECT` requests
+    - Add defined behavior for HTTP `Upgrade` requests
+    - deps: ee-first@1.1.1
+  * deps: qs@3.1.0
+    - Fix dropping parameters like `hasOwnProperty`
+    - Fix various parsing edge cases
+    - Parsed object now has `null` prototype
+  * deps: raw-body@~2.1.1
+    - Use `unpipe` module for unpiping requests
+    - deps: iconv-lite@0.4.10
+  * deps: type-is@~1.6.3
+    - deps: mime-types@~2.1.1
+    - perf: reduce try block size
+    - perf: remove bitwise operations
+  * perf: enable strict mode
+  * perf: remove argument reassignment
+  * perf: remove delete call
+
+1.12.4 / 2015-05-10
+===================
+
+  * deps: debug@~2.2.0
+  * deps: qs@2.4.2
+    - Fix allowing parameters like `constructor`
+  * deps: on-finished@~2.2.1
+  * deps: raw-body@~2.0.1
+    - Fix a false-positive when unpiping in Node.js 0.8
+    - deps: bytes@2.0.1
+  * deps: type-is@~1.6.2
+    - deps: mime-types@~2.0.11
+
+1.12.3 / 2015-04-15
+===================
+
+  * Slight efficiency improvement when not debugging
+  * deps: depd@~1.0.1
+  * deps: iconv-lite@0.4.8
+    - Add encoding alias UNICODE-1-1-UTF-7
+  * deps: raw-body@1.3.4
+    - Fix hanging callback if request aborts during read
+    - deps: iconv-lite@0.4.8
+
+1.12.2 / 2015-03-16
+===================
+
+  * deps: qs@2.4.1
+    - Fix error when parameter `hasOwnProperty` is present
+
+1.12.1 / 2015-03-15
+===================
+
+  * deps: debug@~2.1.3
+    - Fix high intensity foreground color for bold
+    - deps: ms@0.7.0
+  * deps: type-is@~1.6.1
+    - deps: mime-types@~2.0.10
+
+1.12.0 / 2015-02-13
+===================
+
+  * add `debug` messages
+  * accept a function for the `type` option
+  * use `content-type` to parse `Content-Type` headers
+  * deps: iconv-lite@0.4.7
+    - Gracefully support enumerables on `Object.prototype`
+  * deps: raw-body@1.3.3
+    - deps: iconv-lite@0.4.7
+  * deps: type-is@~1.6.0
+    - fix argument reassignment
+    - fix false-positives in `hasBody` `Transfer-Encoding` check
+    - support wildcard for both type and subtype (`*/*`)
+    - deps: mime-types@~2.0.9
+
+1.11.0 / 2015-01-30
+===================
+
+  * make internal `extended: true` depth limit infinity
+  * deps: type-is@~1.5.6
+    - deps: mime-types@~2.0.8
+
+1.10.2 / 2015-01-20
+===================
+
+  * deps: iconv-lite@0.4.6
+    - Fix rare aliases of single-byte encodings
+  * deps: raw-body@1.3.2
+    - deps: iconv-lite@0.4.6
+
+1.10.1 / 2015-01-01
+===================
+
+  * deps: on-finished@~2.2.0
+  * deps: type-is@~1.5.5
+    - deps: mime-types@~2.0.7
+
+1.10.0 / 2014-12-02
+===================
+
+  * make internal `extended: true` array limit dynamic
+
+1.9.3 / 2014-11-21
+==================
+
+  * deps: iconv-lite@0.4.5
+    - Fix Windows-31J and X-SJIS encoding support
+  * deps: qs@2.3.3
+    - Fix `arrayLimit` behavior
+  * deps: raw-body@1.3.1
+    - deps: iconv-lite@0.4.5
+  * deps: type-is@~1.5.3
+    - deps: mime-types@~2.0.3
+
+1.9.2 / 2014-10-27
+==================
+
+  * deps: qs@2.3.2
+    - Fix parsing of mixed objects and values
+
+1.9.1 / 2014-10-22
+==================
+
+  * deps: on-finished@~2.1.1
+    - Fix handling of pipelined requests
+  * deps: qs@2.3.0
+    - Fix parsing of mixed implicit and explicit arrays
+  * deps: type-is@~1.5.2
+    - deps: mime-types@~2.0.2
+
+1.9.0 / 2014-09-24
+==================
+
+  * include the charset in "unsupported charset" error message
+  * include the encoding in "unsupported content encoding" error message
+  * deps: depd@~1.0.0
+
+1.8.4 / 2014-09-23
+==================
+
+  * fix content encoding to be case-insensitive
+
+1.8.3 / 2014-09-19
+==================
+
+  * deps: qs@2.2.4
+    - Fix issue with object keys starting with numbers truncated
+
+1.8.2 / 2014-09-15
+==================
+
+  * deps: depd@0.4.5
+
+1.8.1 / 2014-09-07
+==================
+
+  * deps: media-typer@0.3.0
+  * deps: type-is@~1.5.1
+
+1.8.0 / 2014-09-05
+==================
+
+  * make empty-body-handling consistent between chunked requests
+    - empty `json` produces `{}`
+    - empty `raw` produces `new Buffer(0)`
+    - empty `text` produces `''`
+    - empty `urlencoded` produces `{}`
+  * deps: qs@2.2.3
+    - Fix issue where first empty value in array is discarded
+  * deps: type-is@~1.5.0
+    - fix `hasbody` to be true for `content-length: 0`
+
+1.7.0 / 2014-09-01
+==================
+
+  * add `parameterLimit` option to `urlencoded` parser
+  * change `urlencoded` extended array limit to 100
+  * respond with 413 when over `parameterLimit` in `urlencoded`
+
+1.6.7 / 2014-08-29
+==================
+
+  * deps: qs@2.2.2
+    - Remove unnecessary cloning
+
+1.6.6 / 2014-08-27
+==================
+
+  * deps: qs@2.2.0
+    - Array parsing fix
+    - Performance improvements
+
+1.6.5 / 2014-08-16
+==================
+
+  * deps: on-finished@2.1.0
+
+1.6.4 / 2014-08-14
+==================
+
+  * deps: qs@1.2.2
+
+1.6.3 / 2014-08-10
+==================
+
+  * deps: qs@1.2.1
+
+1.6.2 / 2014-08-07
+==================
+
+  * deps: qs@1.2.0
+    - Fix parsing array of objects
+
+1.6.1 / 2014-08-06
+==================
+
+  * deps: qs@1.1.0
+    - Accept urlencoded square brackets
+    - Accept empty values in implicit array notation
+
+1.6.0 / 2014-08-05
+==================
+
+  * deps: qs@1.0.2
+    - Complete rewrite
+    - Limits array length to 20
+    - Limits object depth to 5
+    - Limits parameters to 1,000
+
+1.5.2 / 2014-07-27
+==================
+
+  * deps: depd@0.4.4
+    - Work-around v8 generating empty stack traces
+
+1.5.1 / 2014-07-26
+==================
+
+  * deps: depd@0.4.3
+    - Fix exception when global `Error.stackTraceLimit` is too low
+
+1.5.0 / 2014-07-20
+==================
+
+  * deps: depd@0.4.2
+    - Add `TRACE_DEPRECATION` environment variable
+    - Remove non-standard grey color from color output
+    - Support `--no-deprecation` argument
+    - Support `--trace-deprecation` argument
+  * deps: iconv-lite@0.4.4
+    - Added encoding UTF-7
+  * deps: raw-body@1.3.0
+    - deps: iconv-lite@0.4.4
+    - Added encoding UTF-7
+    - Fix `Cannot switch to old mode now` error on Node.js 0.10+
+  * deps: type-is@~1.3.2
+
+1.4.3 / 2014-06-19
+==================
+
+  * deps: type-is@1.3.1
+    - fix global variable leak
+
+1.4.2 / 2014-06-19
+==================
+
+  * deps: type-is@1.3.0
+    - improve type parsing
+
+1.4.1 / 2014-06-19
+==================
+
+  * fix urlencoded extended deprecation message
+
+1.4.0 / 2014-06-19
+==================
+
+  * add `text` parser
+  * add `raw` parser
+  * check accepted charset in content-type (accepts utf-8)
+  * check accepted encoding in content-encoding (accepts identity)
+  * deprecate `bodyParser()` middleware; use `.json()` and `.urlencoded()` as needed
+  * deprecate `urlencoded()` without provided `extended` option
+  * lazy-load urlencoded parsers
+  * parsers split into files for reduced mem usage
+  * support gzip and deflate bodies
+    - set `inflate: false` to turn off
+  * deps: raw-body@1.2.2
+    - Support all encodings from `iconv-lite`
+
+1.3.1 / 2014-06-11
+==================
+
+  * deps: type-is@1.2.1
+    - Switch dependency from mime to mime-types@1.0.0
+
+1.3.0 / 2014-05-31
+==================
+
+  * add `extended` option to urlencoded parser
+
+1.2.2 / 2014-05-27
+==================
+
+  * deps: raw-body@1.1.6
+    - assert stream encoding on node.js 0.8
+    - assert stream encoding on node.js < 0.10.6
+    - deps: bytes@1
+
+1.2.1 / 2014-05-26
+==================
+
+  * invoke `next(err)` after request fully read
+    - prevents hung responses and socket hang ups
+
+1.2.0 / 2014-05-11
+==================
+
+  * add `verify` option
+  * deps: type-is@1.2.0
+    - support suffix matching
+
+1.1.2 / 2014-05-11
+==================
+
+  * improve json parser speed
+
+1.1.1 / 2014-05-11
+==================
+
+  * fix repeated limit parsing with every request
+
+1.1.0 / 2014-05-10
+==================
+
+  * add `type` option
+  * deps: pin for safety and consistency
+
+1.0.2 / 2014-04-14
+==================
+
+  * use `type-is` module
+
+1.0.1 / 2014-03-20
+==================
+
+  * lower default limits to 100kb
diff --git a/backend/node_modules/body-parser/LICENSE b/backend/node_modules/body-parser/LICENSE
new file mode 100644
index 0000000..386b7b6
--- /dev/null
+++ b/backend/node_modules/body-parser/LICENSE
@@ -0,0 +1,23 @@
+(The MIT License)
+
+Copyright (c) 2014 Jonathan Ong <me@jongleberry.com>
+Copyright (c) 2014-2015 Douglas Christopher Wilson <doug@somethingdoug.com>
+
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of this software and associated documentation files (the
+'Software'), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sublicense, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to
+the following conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
diff --git a/backend/node_modules/body-parser/README.md b/backend/node_modules/body-parser/README.md
new file mode 100644
index 0000000..9fcd4c6
--- /dev/null
+++ b/backend/node_modules/body-parser/README.md
@@ -0,0 +1,491 @@
+# body-parser
+
+[![NPM Version][npm-version-image]][npm-url]
+[![NPM Downloads][npm-downloads-image]][npm-url]
+[![Build Status][ci-image]][ci-url]
+[![Test Coverage][coveralls-image]][coveralls-url]
+[![OpenSSF Scorecard Badge][ossf-scorecard-badge]][ossf-scorecard-visualizer]
+
+Node.js body parsing middleware.
+
+Parse incoming request bodies in a middleware before your handlers, available
+under the `req.body` property.
+
+**Note** As `req.body`'s shape is based on user-controlled input, all
+properties and values in this object are untrusted and should be validated
+before trusting. For example, `req.body.foo.toString()` may fail in multiple
+ways, for example the `foo` property may not be there or may not be a string,
+and `toString` may not be a function and instead a string or other user input.
+
+[Learn about the anatomy of an HTTP transaction in Node.js](https://nodejs.org/en/docs/guides/anatomy-of-an-http-transaction/).
+
+_This does not handle multipart bodies_, due to their complex and typically
+large nature. For multipart bodies, you may be interested in the following
+modules:
+
+  * [busboy](https://www.npmjs.org/package/busboy#readme) and
+    [connect-busboy](https://www.npmjs.org/package/connect-busboy#readme)
+  * [multiparty](https://www.npmjs.org/package/multiparty#readme) and
+    [connect-multiparty](https://www.npmjs.org/package/connect-multiparty#readme)
+  * [formidable](https://www.npmjs.org/package/formidable#readme)
+  * [multer](https://www.npmjs.org/package/multer#readme)
+
+This module provides the following parsers:
+
+  * [JSON body parser](#bodyparserjsonoptions)
+  * [Raw body parser](#bodyparserrawoptions)
+  * [Text body parser](#bodyparsertextoptions)
+  * [URL-encoded form body parser](#bodyparserurlencodedoptions)
+
+Other body parsers you might be interested in:
+
+- [body](https://www.npmjs.org/package/body#readme)
+- [co-body](https://www.npmjs.org/package/co-body#readme)
+
+## Installation
+
+```sh
+$ npm install body-parser
+```
+
+## API
+
+```js
+const bodyParser = require('body-parser')
+```
+
+The `bodyParser` object exposes various factories to create middlewares. All
+middlewares will populate the `req.body` property with the parsed body when
+the `Content-Type` request header matches the `type` option.
+
+The various errors returned by this module are described in the
+[errors section](#errors).
+
+### bodyParser.json([options])
+
+Returns middleware that only parses `json` and only looks at requests where
+the `Content-Type` header matches the `type` option. This parser accepts any
+Unicode encoding of the body and supports automatic inflation of `gzip`,
+`br` (brotli) and `deflate` encodings.
+
+A new `body` object containing the parsed data is populated on the `request`
+object after the middleware (i.e. `req.body`).
+
+#### Options
+
+The `json` function takes an optional `options` object that may contain any of
+the following keys:
+
+##### inflate
+
+When set to `true`, then deflated (compressed) bodies will be inflated; when
+`false`, deflated bodies are rejected. Defaults to `true`.
+
+##### limit
+
+Controls the maximum request body size. If this is a number, then the value
+specifies the number of bytes; if it is a string, the value is passed to the
+[bytes](https://www.npmjs.com/package/bytes) library for parsing. Defaults
+to `'100kb'`.
+
+##### reviver
+
+The `reviver` option is passed directly to `JSON.parse` as the second
+argument. You can find more information on this argument
+[in the MDN documentation about JSON.parse](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/JSON/parse#Example.3A_Using_the_reviver_parameter).
+
+##### strict
+
+When set to `true`, will only accept arrays and objects; when `false` will
+accept anything `JSON.parse` accepts. Defaults to `true`.
+
+##### type
+
+The `type` option is used to determine what media type the middleware will
+parse. This option can be a string, array of strings, or a function. If not a
+function, `type` option is passed directly to the
+[type-is](https://www.npmjs.org/package/type-is#readme) library and this can
+be an extension name (like `json`), a mime type (like `application/json`), or
+a mime type with a wildcard (like `*/*` or `*/json`). If a function, the `type`
+option is called as `fn(req)` and the request is parsed if it returns a truthy
+value. Defaults to `application/json`.
+
+##### verify
+
+The `verify` option, if supplied, is called as `verify(req, res, buf, encoding)`,
+where `buf` is a `Buffer` of the raw request body and `encoding` is the
+encoding of the request. The parsing can be aborted by throwing an error.
+
+### bodyParser.raw([options])
+
+Returns middleware that parses all bodies as a `Buffer` and only looks at
+requests where the `Content-Type` header matches the `type` option. This
+parser supports automatic inflation of `gzip`, `br` (brotli) and `deflate`
+encodings.
+
+A new `body` object containing the parsed data is populated on the `request`
+object after the middleware (i.e. `req.body`). This will be a `Buffer` object
+of the body.
+
+#### Options
+
+The `raw` function takes an optional `options` object that may contain any of
+the following keys:
+
+##### inflate
+
+When set to `true`, then deflated (compressed) bodies will be inflated; when
+`false`, deflated bodies are rejected. Defaults to `true`.
+
+##### limit
+
+Controls the maximum request body size. If this is a number, then the value
+specifies the number of bytes; if it is a string, the value is passed to the
+[bytes](https://www.npmjs.com/package/bytes) library for parsing. Defaults
+to `'100kb'`.
+
+##### type
+
+The `type` option is used to determine what media type the middleware will
+parse. This option can be a string, array of strings, or a function.
+If not a function, `type` option is passed directly to the
+[type-is](https://www.npmjs.org/package/type-is#readme) library and this
+can be an extension name (like `bin`), a mime type (like
+`application/octet-stream`), or a mime type with a wildcard (like `*/*` or
+`application/*`). If a function, the `type` option is called as `fn(req)`
+and the request is parsed if it returns a truthy value. Defaults to
+`application/octet-stream`.
+
+##### verify
+
+The `verify` option, if supplied, is called as `verify(req, res, buf, encoding)`,
+where `buf` is a `Buffer` of the raw request body and `encoding` is the
+encoding of the request. The parsing can be aborted by throwing an error.
+
+### bodyParser.text([options])
+
+Returns middleware that parses all bodies as a string and only looks at
+requests where the `Content-Type` header matches the `type` option. This
+parser supports automatic inflation of `gzip`, `br` (brotli) and `deflate`
+encodings.
+
+A new `body` string containing the parsed data is populated on the `request`
+object after the middleware (i.e. `req.body`). This will be a string of the
+body.
+
+#### Options
+
+The `text` function takes an optional `options` object that may contain any of
+the following keys:
+
+##### defaultCharset
+
+Specify the default character set for the text content if the charset is not
+specified in the `Content-Type` header of the request. Defaults to `utf-8`.
+
+##### inflate
+
+When set to `true`, then deflated (compressed) bodies will be inflated; when
+`false`, deflated bodies are rejected. Defaults to `true`.
+
+##### limit
+
+Controls the maximum request body size. If this is a number, then the value
+specifies the number of bytes; if it is a string, the value is passed to the
+[bytes](https://www.npmjs.com/package/bytes) library for parsing. Defaults
+to `'100kb'`.
+
+##### type
+
+The `type` option is used to determine what media type the middleware will
+parse. This option can be a string, array of strings, or a function. If not
+a function, `type` option is passed directly to the
+[type-is](https://www.npmjs.org/package/type-is#readme) library and this can
+be an extension name (like `txt`), a mime type (like `text/plain`), or a mime
+type with a wildcard (like `*/*` or `text/*`). If a function, the `type`
+option is called as `fn(req)` and the request is parsed if it returns a
+truthy value. Defaults to `text/plain`.
+
+##### verify
+
+The `verify` option, if supplied, is called as `verify(req, res, buf, encoding)`,
+where `buf` is a `Buffer` of the raw request body and `encoding` is the
+encoding of the request. The parsing can be aborted by throwing an error.
+
+### bodyParser.urlencoded([options])
+
+Returns middleware that only parses `urlencoded` bodies and only looks at
+requests where the `Content-Type` header matches the `type` option. This
+parser accepts only UTF-8 encoding of the body and supports automatic
+inflation of `gzip`, `br` (brotli) and `deflate` encodings.
+
+A new `body` object containing the parsed data is populated on the `request`
+object after the middleware (i.e. `req.body`). This object will contain
+key-value pairs, where the value can be a string or array (when `extended` is
+`false`), or any type (when `extended` is `true`).
+
+#### Options
+
+The `urlencoded` function takes an optional `options` object that may contain
+any of the following keys:
+
+##### extended
+
+The "extended" syntax allows for rich objects and arrays to be encoded into the
+URL-encoded format, allowing for a JSON-like experience with URL-encoded. For
+more information, please [see the qs
+library](https://www.npmjs.org/package/qs#readme).
+
+Defaults to `false`.
+
+##### inflate
+
+When set to `true`, then deflated (compressed) bodies will be inflated; when
+`false`, deflated bodies are rejected. Defaults to `true`.
+
+##### limit
+
+Controls the maximum request body size. If this is a number, then the value
+specifies the number of bytes; if it is a string, the value is passed to the
+[bytes](https://www.npmjs.com/package/bytes) library for parsing. Defaults
+to `'100kb'`.
+
+##### parameterLimit
+
+The `parameterLimit` option controls the maximum number of parameters that
+are allowed in the URL-encoded data. If a request contains more parameters
+than this value, a 413 will be returned to the client. Defaults to `1000`.
+
+##### type
+
+The `type` option is used to determine what media type the middleware will
+parse. This option can be a string, array of strings, or a function. If not
+a function, `type` option is passed directly to the
+[type-is](https://www.npmjs.org/package/type-is#readme) library and this can
+be an extension name (like `urlencoded`), a mime type (like
+`application/x-www-form-urlencoded`), or a mime type with a wildcard (like
+`*/x-www-form-urlencoded`). If a function, the `type` option is called as
+`fn(req)` and the request is parsed if it returns a truthy value. Defaults
+to `application/x-www-form-urlencoded`.
+
+##### verify
+
+The `verify` option, if supplied, is called as `verify(req, res, buf, encoding)`,
+where `buf` is a `Buffer` of the raw request body and `encoding` is the
+encoding of the request. The parsing can be aborted by throwing an error.
+
+##### defaultCharset
+
+The default charset to parse as, if not specified in content-type. Must be
+either `utf-8` or `iso-8859-1`. Defaults to `utf-8`.
+
+##### charsetSentinel
+
+Whether to let the value of the `utf8` parameter take precedence as the charset
+selector. It requires the form to contain a parameter named `utf8` with a value
+of `✓`. Defaults to `false`.
+
+##### interpretNumericEntities
+
+Whether to decode numeric entities such as `&#9786;` when parsing an iso-8859-1
+form. Defaults to `false`.
+
+
+#### depth
+
+The `depth` option is used to configure the maximum depth of the `qs` library when `extended` is `true`. This allows you to limit the amount of keys that are parsed and can be useful to prevent certain types of abuse. Defaults to `32`. It is recommended to keep this value as low as possible.
+
+## Errors
+
+The middlewares provided by this module create errors using the
+[`http-errors` module](https://www.npmjs.com/package/http-errors). The errors
+will typically have a `status`/`statusCode` property that contains the suggested
+HTTP response code, an `expose` property to determine if the `message` property
+should be displayed to the client, a `type` property to determine the type of
+error without matching against the `message`, and a `body` property containing
+the read body, if available.
+
+The following are the common errors created, though any error can come through
+for various reasons.
+
+### content encoding unsupported
+
+This error will occur when the request had a `Content-Encoding` header that
+contained an encoding but the "inflation" option was set to `false`. The
+`status` property is set to `415`, the `type` property is set to
+`'encoding.unsupported'`, and the `charset` property will be set to the
+encoding that is unsupported.
+
+### entity parse failed
+
+This error will occur when the request contained an entity that could not be
+parsed by the middleware. The `status` property is set to `400`, the `type`
+property is set to `'entity.parse.failed'`, and the `body` property is set to
+the entity value that failed parsing.
+
+### entity verify failed
+
+This error will occur when the request contained an entity that could not be
+failed verification by the defined `verify` option. The `status` property is
+set to `403`, the `type` property is set to `'entity.verify.failed'`, and the
+`body` property is set to the entity value that failed verification.
+
+### request aborted
+
+This error will occur when the request is aborted by the client before reading
+the body has finished. The `received` property will be set to the number of
+bytes received before the request was aborted and the `expected` property is
+set to the number of expected bytes. The `status` property is set to `400`
+and `type` property is set to `'request.aborted'`.
+
+### request entity too large
+
+This error will occur when the request body's size is larger than the "limit"
+option. The `limit` property will be set to the byte limit and the `length`
+property will be set to the request body's length. The `status` property is
+set to `413` and the `type` property is set to `'entity.too.large'`.
+
+### request size did not match content length
+
+This error will occur when the request's length did not match the length from
+the `Content-Length` header. This typically occurs when the request is malformed,
+typically when the `Content-Length` header was calculated based on characters
+instead of bytes. The `status` property is set to `400` and the `type` property
+is set to `'request.size.invalid'`.
+
+### stream encoding should not be set
+
+This error will occur when something called the `req.setEncoding` method prior
+to this middleware. This module operates directly on bytes only and you cannot
+call `req.setEncoding` when using this module. The `status` property is set to
+`500` and the `type` property is set to `'stream.encoding.set'`.
+
+### stream is not readable
+
+This error will occur when the request is no longer readable when this middleware
+attempts to read it. This typically means something other than a middleware from
+this module read the request body already and the middleware was also configured to
+read the same request. The `status` property is set to `500` and the `type`
+property is set to `'stream.not.readable'`.
+
+### too many parameters
+
+This error will occur when the content of the request exceeds the configured
+`parameterLimit` for the `urlencoded` parser. The `status` property is set to
+`413` and the `type` property is set to `'parameters.too.many'`.
+
+### unsupported charset "BOGUS"
+
+This error will occur when the request had a charset parameter in the
+`Content-Type` header, but the `iconv-lite` module does not support it OR the
+parser does not support it. The charset is contained in the message as well
+as in the `charset` property. The `status` property is set to `415`, the
+`type` property is set to `'charset.unsupported'`, and the `charset` property
+is set to the charset that is unsupported.
+
+### unsupported content encoding "bogus"
+
+This error will occur when the request had a `Content-Encoding` header that
+contained an unsupported encoding. The encoding is contained in the message
+as well as in the `encoding` property. The `status` property is set to `415`,
+the `type` property is set to `'encoding.unsupported'`, and the `encoding`
+property is set to the encoding that is unsupported.
+
+### The input exceeded the depth
+
+This error occurs when using `bodyParser.urlencoded` with the `extended` property set to `true` and the input exceeds the configured `depth` option. The `status` property is set to `400`. It is recommended to review the `depth` option and evaluate if it requires a higher value. When the `depth` option is set to `32` (default value), the error will not be thrown.
+
+## Examples
+
+### Express/Connect top-level generic
+
+This example demonstrates adding a generic JSON and URL-encoded parser as a
+top-level middleware, which will parse the bodies of all incoming requests.
+This is the simplest setup.
+
+```js
+const express = require('express')
+const bodyParser = require('body-parser')
+
+const app = express()
+
+// parse application/x-www-form-urlencoded
+app.use(bodyParser.urlencoded())
+
+// parse application/json
+app.use(bodyParser.json())
+
+app.use(function (req, res) {
+  res.setHeader('Content-Type', 'text/plain')
+  res.write('you posted:\n')
+  res.end(String(JSON.stringify(req.body, null, 2)))
+})
+```
+
+### Express route-specific
+
+This example demonstrates adding body parsers specifically to the routes that
+need them. In general, this is the most recommended way to use body-parser with
+Express.
+
+```js
+const express = require('express')
+const bodyParser = require('body-parser')
+
+const app = express()
+
+// create application/json parser
+const jsonParser = bodyParser.json()
+
+// create application/x-www-form-urlencoded parser
+const urlencodedParser = bodyParser.urlencoded()
+
+// POST /login gets urlencoded bodies
+app.post('/login', urlencodedParser, function (req, res) {
+  if (!req.body || !req.body.username) res.sendStatus(400)
+  res.send('welcome, ' + req.body.username)
+})
+
+// POST /api/users gets JSON bodies
+app.post('/api/users', jsonParser, function (req, res) {
+  if (!req.body) res.sendStatus(400)
+  // create user in req.body
+})
+```
+
+### Change accepted type for parsers
+
+All the parsers accept a `type` option which allows you to change the
+`Content-Type` that the middleware will parse.
+
+```js
+const express = require('express')
+const bodyParser = require('body-parser')
+
+const app = express()
+
+// parse various different custom JSON types as JSON
+app.use(bodyParser.json({ type: 'application/*+json' }))
+
+// parse some custom thing into a Buffer
+app.use(bodyParser.raw({ type: 'application/vnd.custom-type' }))
+
+// parse an HTML body into a string
+app.use(bodyParser.text({ type: 'text/html' }))
+```
+
+## License
+
+[MIT](LICENSE)
+
+[ci-image]: https://badgen.net/github/checks/expressjs/body-parser/master?label=ci
+[ci-url]: https://github.com/expressjs/body-parser/actions/workflows/ci.yml
+[coveralls-image]: https://badgen.net/coveralls/c/github/expressjs/body-parser/master
+[coveralls-url]: https://coveralls.io/r/expressjs/body-parser?branch=master
+[node-version-image]: https://badgen.net/npm/node/body-parser
+[node-version-url]: https://nodejs.org/en/download
+[npm-downloads-image]: https://badgen.net/npm/dm/body-parser
+[npm-url]: https://npmjs.org/package/body-parser
+[npm-version-image]: https://badgen.net/npm/v/body-parser
+[ossf-scorecard-badge]: https://api.scorecard.dev/projects/github.com/expressjs/body-parser/badge
+[ossf-scorecard-visualizer]: https://ossf.github.io/scorecard-visualizer/#/projects/github.com/expressjs/body-parser
\ No newline at end of file
diff --git a/backend/node_modules/body-parser/index.js b/backend/node_modules/body-parser/index.js
new file mode 100644
index 0000000..d722d0b
--- /dev/null
+++ b/backend/node_modules/body-parser/index.js
@@ -0,0 +1,80 @@
+/*!
+ * body-parser
+ * Copyright(c) 2014-2015 Douglas Christopher Wilson
+ * MIT Licensed
+ */
+
+'use strict'
+
+/**
+ * @typedef Parsers
+ * @type {function}
+ * @property {function} json
+ * @property {function} raw
+ * @property {function} text
+ * @property {function} urlencoded
+ */
+
+/**
+ * Module exports.
+ * @type {Parsers}
+ */
+
+exports = module.exports = bodyParser
+
+/**
+ * JSON parser.
+ * @public
+ */
+
+Object.defineProperty(exports, 'json', {
+  configurable: true,
+  enumerable: true,
+  get: () => require('./lib/types/json')
+})
+
+/**
+ * Raw parser.
+ * @public
+ */
+
+Object.defineProperty(exports, 'raw', {
+  configurable: true,
+  enumerable: true,
+  get: () => require('./lib/types/raw')
+})
+
+/**
+ * Text parser.
+ * @public
+ */
+
+Object.defineProperty(exports, 'text', {
+  configurable: true,
+  enumerable: true,
+  get: () => require('./lib/types/text')
+})
+
+/**
+ * URL-encoded parser.
+ * @public
+ */
+
+Object.defineProperty(exports, 'urlencoded', {
+  configurable: true,
+  enumerable: true,
+  get: () => require('./lib/types/urlencoded')
+})
+
+/**
+ * Create a middleware to parse json and urlencoded bodies.
+ *
+ * @param {object} [options]
+ * @return {function}
+ * @deprecated
+ * @public
+ */
+
+function bodyParser () {
+  throw new Error('The bodyParser() generic has been split into individual middleware to use instead.')
+}
diff --git a/backend/node_modules/body-parser/lib/read.js b/backend/node_modules/body-parser/lib/read.js
new file mode 100644
index 0000000..eee8b11
--- /dev/null
+++ b/backend/node_modules/body-parser/lib/read.js
@@ -0,0 +1,210 @@
+/*!
+ * body-parser
+ * Copyright(c) 2014-2015 Douglas Christopher Wilson
+ * MIT Licensed
+ */
+
+'use strict'
+
+/**
+ * Module dependencies.
+ * @private
+ */
+
+var createError = require('http-errors')
+var getBody = require('raw-body')
+var iconv = require('iconv-lite')
+var onFinished = require('on-finished')
+var zlib = require('node:zlib')
+
+/**
+ * Module exports.
+ */
+
+module.exports = read
+
+/**
+ * Read a request into a buffer and parse.
+ *
+ * @param {object} req
+ * @param {object} res
+ * @param {function} next
+ * @param {function} parse
+ * @param {function} debug
+ * @param {object} options
+ * @private
+ */
+
+function read (req, res, next, parse, debug, options) {
+  var length
+  var opts = options
+  var stream
+
+  // read options
+  var encoding = opts.encoding !== null
+    ? opts.encoding
+    : null
+  var verify = opts.verify
+
+  try {
+    // get the content stream
+    stream = contentstream(req, debug, opts.inflate)
+    length = stream.length
+    stream.length = undefined
+  } catch (err) {
+    return next(err)
+  }
+
+  // set raw-body options
+  opts.length = length
+  opts.encoding = verify
+    ? null
+    : encoding
+
+  // assert charset is supported
+  if (opts.encoding === null && encoding !== null && !iconv.encodingExists(encoding)) {
+    return next(createError(415, 'unsupported charset "' + encoding.toUpperCase() + '"', {
+      charset: encoding.toLowerCase(),
+      type: 'charset.unsupported'
+    }))
+  }
+
+  // read body
+  debug('read body')
+  getBody(stream, opts, function (error, body) {
+    if (error) {
+      var _error
+
+      if (error.type === 'encoding.unsupported') {
+        // echo back charset
+        _error = createError(415, 'unsupported charset "' + encoding.toUpperCase() + '"', {
+          charset: encoding.toLowerCase(),
+          type: 'charset.unsupported'
+        })
+      } else {
+        // set status code on error
+        _error = createError(400, error)
+      }
+
+      // unpipe from stream and destroy
+      if (stream !== req) {
+        req.unpipe()
+        stream.destroy()
+      }
+
+      // read off entire request
+      dump(req, function onfinished () {
+        next(createError(400, _error))
+      })
+      return
+    }
+
+    // verify
+    if (verify) {
+      try {
+        debug('verify body')
+        verify(req, res, body, encoding)
+      } catch (err) {
+        next(createError(403, err, {
+          body: body,
+          type: err.type || 'entity.verify.failed'
+        }))
+        return
+      }
+    }
+
+    // parse
+    var str = body
+    try {
+      debug('parse body')
+      str = typeof body !== 'string' && encoding !== null
+        ? iconv.decode(body, encoding)
+        : body
+      req.body = parse(str, encoding)
+    } catch (err) {
+      next(createError(400, err, {
+        body: str,
+        type: err.type || 'entity.parse.failed'
+      }))
+      return
+    }
+
+    next()
+  })
+}
+
+/**
+ * Get the content stream of the request.
+ *
+ * @param {object} req
+ * @param {function} debug
+ * @param {boolean} [inflate=true]
+ * @return {object}
+ * @api private
+ */
+
+function contentstream (req, debug, inflate) {
+  var encoding = (req.headers['content-encoding'] || 'identity').toLowerCase()
+  var length = req.headers['content-length']
+
+  debug('content-encoding "%s"', encoding)
+
+  if (inflate === false && encoding !== 'identity') {
+    throw createError(415, 'content encoding unsupported', {
+      encoding: encoding,
+      type: 'encoding.unsupported'
+    })
+  }
+
+  if (encoding === 'identity') {
+    req.length = length
+    return req
+  }
+
+  var stream = createDecompressionStream(encoding, debug)
+  req.pipe(stream)
+  return stream
+}
+
+/**
+ * Create a decompression stream for the given encoding.
+ * @param {string} encoding
+ * @param {function} debug
+ * @return {object}
+ * @api private
+ */
+function createDecompressionStream (encoding, debug) {
+  switch (encoding) {
+    case 'deflate':
+      debug('inflate body')
+      return zlib.createInflate()
+    case 'gzip':
+      debug('gunzip body')
+      return zlib.createGunzip()
+    case 'br':
+      debug('brotli decompress body')
+      return zlib.createBrotliDecompress()
+    default:
+      throw createError(415, 'unsupported content encoding "' + encoding + '"', {
+        encoding: encoding,
+        type: 'encoding.unsupported'
+      })
+  }
+}
+
+/**
+ * Dump the contents of a request.
+ *
+ * @param {object} req
+ * @param {function} callback
+ * @api private
+ */
+
+function dump (req, callback) {
+  if (onFinished.isFinished(req)) {
+    callback(null)
+  } else {
+    onFinished(req, callback)
+    req.resume()
+  }
+}
diff --git a/backend/node_modules/body-parser/lib/types/json.js b/backend/node_modules/body-parser/lib/types/json.js
new file mode 100644
index 0000000..078ce71
--- /dev/null
+++ b/backend/node_modules/body-parser/lib/types/json.js
@@ -0,0 +1,206 @@
+/*!
+ * body-parser
+ * Copyright(c) 2014 Jonathan Ong
+ * Copyright(c) 2014-2015 Douglas Christopher Wilson
+ * MIT Licensed
+ */
+
+'use strict'
+
+/**
+ * Module dependencies.
+ * @private
+ */
+
+var createError = require('http-errors')
+var debug = require('debug')('body-parser:json')
+var isFinished = require('on-finished').isFinished
+var read = require('../read')
+var typeis = require('type-is')
+var { getCharset, normalizeOptions } = require('../utils')
+
+/**
+ * Module exports.
+ */
+
+module.exports = json
+
+/**
+ * RegExp to match the first non-space in a string.
+ *
+ * Allowed whitespace is defined in RFC 7159:
+ *
+ *    ws = *(
+ *            %x20 /              ; Space
+ *            %x09 /              ; Horizontal tab
+ *            %x0A /              ; Line feed or New line
+ *            %x0D )              ; Carriage return
+ */
+
+var FIRST_CHAR_REGEXP = /^[\x20\x09\x0a\x0d]*([^\x20\x09\x0a\x0d])/ // eslint-disable-line no-control-regex
+
+var JSON_SYNTAX_CHAR = '#'
+var JSON_SYNTAX_REGEXP = /#+/g
+
+/**
+ * Create a middleware to parse JSON bodies.
+ *
+ * @param {object} [options]
+ * @return {function}
+ * @public
+ */
+
+function json (options) {
+  var { inflate, limit, verify, shouldParse } = normalizeOptions(options, 'application/json')
+
+  var reviver = options?.reviver
+  var strict = options?.strict !== false
+
+  function parse (body) {
+    if (body.length === 0) {
+      // special-case empty json body, as it's a common client-side mistake
+      // TODO: maybe make this configurable or part of "strict" option
+      return {}
+    }
+
+    if (strict) {
+      var first = firstchar(body)
+
+      if (first !== '{' && first !== '[') {
+        debug('strict violation')
+        throw createStrictSyntaxError(body, first)
+      }
+    }
+
+    try {
+      debug('parse json')
+      return JSON.parse(body, reviver)
+    } catch (e) {
+      throw normalizeJsonSyntaxError(e, {
+        message: e.message,
+        stack: e.stack
+      })
+    }
+  }
+
+  return function jsonParser (req, res, next) {
+    if (isFinished(req)) {
+      debug('body already parsed')
+      next()
+      return
+    }
+
+    if (!('body' in req)) {
+      req.body = undefined
+    }
+
+    // skip requests without bodies
+    if (!typeis.hasBody(req)) {
+      debug('skip empty body')
+      next()
+      return
+    }
+
+    debug('content-type %j', req.headers['content-type'])
+
+    // determine if request should be parsed
+    if (!shouldParse(req)) {
+      debug('skip parsing')
+      next()
+      return
+    }
+
+    // assert charset per RFC 7159 sec 8.1
+    var charset = getCharset(req) || 'utf-8'
+    if (charset.slice(0, 4) !== 'utf-') {
+      debug('invalid charset')
+      next(createError(415, 'unsupported charset "' + charset.toUpperCase() + '"', {
+        charset: charset,
+        type: 'charset.unsupported'
+      }))
+      return
+    }
+
+    // read
+    read(req, res, next, parse, debug, {
+      encoding: charset,
+      inflate,
+      limit,
+      verify
+    })
+  }
+}
+
+/**
+ * Create strict violation syntax error matching native error.
+ *
+ * @param {string} str
+ * @param {string} char
+ * @return {Error}
+ * @private
+ */
+
+function createStrictSyntaxError (str, char) {
+  var index = str.indexOf(char)
+  var partial = ''
+
+  if (index !== -1) {
+    partial = str.substring(0, index) + JSON_SYNTAX_CHAR
+
+    for (var i = index + 1; i < str.length; i++) {
+      partial += JSON_SYNTAX_CHAR
+    }
+  }
+
+  try {
+    JSON.parse(partial); /* istanbul ignore next */ throw new SyntaxError('strict violation')
+  } catch (e) {
+    return normalizeJsonSyntaxError(e, {
+      message: e.message.replace(JSON_SYNTAX_REGEXP, function (placeholder) {
+        return str.substring(index, index + placeholder.length)
+      }),
+      stack: e.stack
+    })
+  }
+}
+
+/**
+ * Get the first non-whitespace character in a string.
+ *
+ * @param {string} str
+ * @return {function}
+ * @private
+ */
+
+function firstchar (str) {
+  var match = FIRST_CHAR_REGEXP.exec(str)
+
+  return match
+    ? match[1]
+    : undefined
+}
+
+/**
+ * Normalize a SyntaxError for JSON.parse.
+ *
+ * @param {SyntaxError} error
+ * @param {object} obj
+ * @return {SyntaxError}
+ */
+
+function normalizeJsonSyntaxError (error, obj) {
+  var keys = Object.getOwnPropertyNames(error)
+
+  for (var i = 0; i < keys.length; i++) {
+    var key = keys[i]
+    if (key !== 'stack' && key !== 'message') {
+      delete error[key]
+    }
+  }
+
+  // replace stack before message for Node.js 0.10 and below
+  error.stack = obj.stack.replace(error.message, obj.message)
+  error.message = obj.message
+
+  return error
+}
diff --git a/backend/node_modules/body-parser/lib/types/raw.js b/backend/node_modules/body-parser/lib/types/raw.js
new file mode 100644
index 0000000..3788ff2
--- /dev/null
+++ b/backend/node_modules/body-parser/lib/types/raw.js
@@ -0,0 +1,75 @@
+/*!
+ * body-parser
+ * Copyright(c) 2014-2015 Douglas Christopher Wilson
+ * MIT Licensed
+ */
+
+'use strict'
+
+/**
+ * Module dependencies.
+ */
+
+var debug = require('debug')('body-parser:raw')
+var isFinished = require('on-finished').isFinished
+var read = require('../read')
+var typeis = require('type-is')
+var { normalizeOptions } = require('../utils')
+
+/**
+ * Module exports.
+ */
+
+module.exports = raw
+
+/**
+ * Create a middleware to parse raw bodies.
+ *
+ * @param {object} [options]
+ * @return {function}
+ * @api public
+ */
+
+function raw (options) {
+  var { inflate, limit, verify, shouldParse } = normalizeOptions(options, 'application/octet-stream')
+
+  function parse (buf) {
+    return buf
+  }
+
+  return function rawParser (req, res, next) {
+    if (isFinished(req)) {
+      debug('body already parsed')
+      next()
+      return
+    }
+
+    if (!('body' in req)) {
+      req.body = undefined
+    }
+
+    // skip requests without bodies
+    if (!typeis.hasBody(req)) {
+      debug('skip empty body')
+      next()
+      return
+    }
+
+    debug('content-type %j', req.headers['content-type'])
+
+    // determine if request should be parsed
+    if (!shouldParse(req)) {
+      debug('skip parsing')
+      next()
+      return
+    }
+
+    // read
+    read(req, res, next, parse, debug, {
+      encoding: null,
+      inflate,
+      limit,
+      verify
+    })
+  }
+}
diff --git a/backend/node_modules/body-parser/lib/types/text.js b/backend/node_modules/body-parser/lib/types/text.js
new file mode 100644
index 0000000..3e0ab1b
--- /dev/null
+++ b/backend/node_modules/body-parser/lib/types/text.js
@@ -0,0 +1,80 @@
+/*!
+ * body-parser
+ * Copyright(c) 2014-2015 Douglas Christopher Wilson
+ * MIT Licensed
+ */
+
+'use strict'
+
+/**
+ * Module dependencies.
+ */
+
+var debug = require('debug')('body-parser:text')
+var isFinished = require('on-finished').isFinished
+var read = require('../read')
+var typeis = require('type-is')
+var { getCharset, normalizeOptions } = require('../utils')
+
+/**
+ * Module exports.
+ */
+
+module.exports = text
+
+/**
+ * Create a middleware to parse text bodies.
+ *
+ * @param {object} [options]
+ * @return {function}
+ * @api public
+ */
+
+function text (options) {
+  var { inflate, limit, verify, shouldParse } = normalizeOptions(options, 'text/plain')
+
+  var defaultCharset = options?.defaultCharset || 'utf-8'
+
+  function parse (buf) {
+    return buf
+  }
+
+  return function textParser (req, res, next) {
+    if (isFinished(req)) {
+      debug('body already parsed')
+      next()
+      return
+    }
+
+    if (!('body' in req)) {
+      req.body = undefined
+    }
+
+    // skip requests without bodies
+    if (!typeis.hasBody(req)) {
+      debug('skip empty body')
+      next()
+      return
+    }
+
+    debug('content-type %j', req.headers['content-type'])
+
+    // determine if request should be parsed
+    if (!shouldParse(req)) {
+      debug('skip parsing')
+      next()
+      return
+    }
+
+    // get charset
+    var charset = getCharset(req) || defaultCharset
+
+    // read
+    read(req, res, next, parse, debug, {
+      encoding: charset,
+      inflate,
+      limit,
+      verify
+    })
+  }
+}
diff --git a/backend/node_modules/body-parser/lib/types/urlencoded.js b/backend/node_modules/body-parser/lib/types/urlencoded.js
new file mode 100644
index 0000000..f993425
--- /dev/null
+++ b/backend/node_modules/body-parser/lib/types/urlencoded.js
@@ -0,0 +1,177 @@
+/*!
+ * body-parser
+ * Copyright(c) 2014 Jonathan Ong
+ * Copyright(c) 2014-2015 Douglas Christopher Wilson
+ * MIT Licensed
+ */
+
+'use strict'
+
+/**
+ * Module dependencies.
+ * @private
+ */
+
+var createError = require('http-errors')
+var debug = require('debug')('body-parser:urlencoded')
+var isFinished = require('on-finished').isFinished
+var read = require('../read')
+var typeis = require('type-is')
+var qs = require('qs')
+var { getCharset, normalizeOptions } = require('../utils')
+
+/**
+ * Module exports.
+ */
+
+module.exports = urlencoded
+
+/**
+ * Create a middleware to parse urlencoded bodies.
+ *
+ * @param {object} [options]
+ * @return {function}
+ * @public
+ */
+
+function urlencoded (options) {
+  var { inflate, limit, verify, shouldParse } = normalizeOptions(options, 'application/x-www-form-urlencoded')
+
+  var defaultCharset = options?.defaultCharset || 'utf-8'
+  if (defaultCharset !== 'utf-8' && defaultCharset !== 'iso-8859-1') {
+    throw new TypeError('option defaultCharset must be either utf-8 or iso-8859-1')
+  }
+
+  // create the appropriate query parser
+  var queryparse = createQueryParser(options)
+
+  function parse (body, encoding) {
+    return body.length
+      ? queryparse(body, encoding)
+      : {}
+  }
+
+  return function urlencodedParser (req, res, next) {
+    if (isFinished(req)) {
+      debug('body already parsed')
+      next()
+      return
+    }
+
+    if (!('body' in req)) {
+      req.body = undefined
+    }
+
+    // skip requests without bodies
+    if (!typeis.hasBody(req)) {
+      debug('skip empty body')
+      next()
+      return
+    }
+
+    debug('content-type %j', req.headers['content-type'])
+
+    // determine if request should be parsed
+    if (!shouldParse(req)) {
+      debug('skip parsing')
+      next()
+      return
+    }
+
+    // assert charset
+    var charset = getCharset(req) || defaultCharset
+    if (charset !== 'utf-8' && charset !== 'iso-8859-1') {
+      debug('invalid charset')
+      next(createError(415, 'unsupported charset "' + charset.toUpperCase() + '"', {
+        charset: charset,
+        type: 'charset.unsupported'
+      }))
+      return
+    }
+
+    // read
+    read(req, res, next, parse, debug, {
+      encoding: charset,
+      inflate,
+      limit,
+      verify
+    })
+  }
+}
+
+/**
+ * Get the extended query parser.
+ *
+ * @param {object} options
+ */
+
+function createQueryParser (options) {
+  var extended = Boolean(options?.extended)
+  var parameterLimit = options?.parameterLimit !== undefined
+    ? options?.parameterLimit
+    : 1000
+  var charsetSentinel = options?.charsetSentinel
+  var interpretNumericEntities = options?.interpretNumericEntities
+  var depth = extended ? (options?.depth !== undefined ? options?.depth : 32) : 0
+
+  if (isNaN(parameterLimit) || parameterLimit < 1) {
+    throw new TypeError('option parameterLimit must be a positive number')
+  }
+
+  if (isNaN(depth) || depth < 0) {
+    throw new TypeError('option depth must be a zero or a positive number')
+  }
+
+  if (isFinite(parameterLimit)) {
+    parameterLimit = parameterLimit | 0
+  }
+
+  return function queryparse (body, encoding) {
+    var paramCount = parameterCount(body, parameterLimit)
+
+    if (paramCount === undefined) {
+      debug('too many parameters')
+      throw createError(413, 'too many parameters', {
+        type: 'parameters.too.many'
+      })
+    }
+
+    var arrayLimit = extended ? Math.max(100, paramCount) : 0
+
+    debug('parse ' + (extended ? 'extended ' : '') + 'urlencoding')
+    try {
+      return qs.parse(body, {
+        allowPrototypes: true,
+        arrayLimit: arrayLimit,
+        depth: depth,
+        charsetSentinel: charsetSentinel,
+        interpretNumericEntities: interpretNumericEntities,
+        charset: encoding,
+        parameterLimit: parameterLimit,
+        strictDepth: true
+      })
+    } catch (err) {
+      if (err instanceof RangeError) {
+        throw createError(400, 'The input exceeded the depth', {
+          type: 'querystring.parse.rangeError'
+        })
+      } else {
+        throw err
+      }
+    }
+  }
+}
+
+/**
+ * Count the number of parameters, stopping once limit reached
+ *
+ * @param {string} body
+ * @param {number} limit
+ * @api private
+ */
+
+function parameterCount (body, limit) {
+  var len = body.split('&').length
+
+  return len > limit ? undefined : len - 1
+}
diff --git a/backend/node_modules/body-parser/lib/utils.js b/backend/node_modules/body-parser/lib/utils.js
new file mode 100644
index 0000000..eee5d95
--- /dev/null
+++ b/backend/node_modules/body-parser/lib/utils.js
@@ -0,0 +1,83 @@
+'use strict'
+
+/**
+ * Module dependencies.
+ */
+
+var bytes = require('bytes')
+var contentType = require('content-type')
+var typeis = require('type-is')
+
+/**
+ * Module exports.
+ */
+
+module.exports = {
+  getCharset,
+  normalizeOptions
+}
+
+/**
+ * Get the charset of a request.
+ *
+ * @param {object} req
+ * @api private
+ */
+
+function getCharset (req) {
+  try {
+    return (contentType.parse(req).parameters.charset || '').toLowerCase()
+  } catch {
+    return undefined
+  }
+}
+
+/**
+ * Get the simple type checker.
+ *
+ * @param {string | string[]} type
+ * @return {function}
+ */
+
+function typeChecker (type) {
+  return function checkType (req) {
+    return Boolean(typeis(req, type))
+  }
+}
+
+/**
+ * Normalizes the common options for all parsers.
+ *
+ * @param {object} options options to normalize
+ * @param {string | string[] | function} defaultType default content type(s) or a function to determine it
+ * @returns {object}
+ */
+function normalizeOptions (options, defaultType) {
+  if (!defaultType) {
+    // Parsers must define a default content type
+    throw new TypeError('defaultType must be provided')
+  }
+
+  var inflate = options?.inflate !== false
+  var limit = typeof options?.limit !== 'number'
+    ? bytes.parse(options?.limit || '100kb')
+    : options?.limit
+  var type = options?.type || defaultType
+  var verify = options?.verify || false
+
+  if (verify !== false && typeof verify !== 'function') {
+    throw new TypeError('option verify must be function')
+  }
+
+  // create the appropriate type checking function
+  var shouldParse = typeof type !== 'function'
+    ? typeChecker(type)
+    : type
+
+  return {
+    inflate,
+    limit,
+    verify,
+    shouldParse
+  }
+}
diff --git a/backend/node_modules/body-parser/package.json b/backend/node_modules/body-parser/package.json
new file mode 100644
index 0000000..e7f763b
--- /dev/null
+++ b/backend/node_modules/body-parser/package.json
@@ -0,0 +1,49 @@
+{
+  "name": "body-parser",
+  "description": "Node.js body parsing middleware",
+  "version": "2.2.0",
+  "contributors": [
+    "Douglas Christopher Wilson <doug@somethingdoug.com>",
+    "Jonathan Ong <me@jongleberry.com> (http://jongleberry.com)"
+  ],
+  "license": "MIT",
+  "repository": "expressjs/body-parser",
+  "dependencies": {
+    "bytes": "^3.1.2",
+    "content-type": "^1.0.5",
+    "debug": "^4.4.0",
+    "http-errors": "^2.0.0",
+    "iconv-lite": "^0.6.3",
+    "on-finished": "^2.4.1",
+    "qs": "^6.14.0",
+    "raw-body": "^3.0.0",
+    "type-is": "^2.0.0"
+  },
+  "devDependencies": {
+    "eslint": "8.34.0",
+    "eslint-config-standard": "14.1.1",
+    "eslint-plugin-import": "2.27.5",
+    "eslint-plugin-markdown": "3.0.0",
+    "eslint-plugin-node": "11.1.0",
+    "eslint-plugin-promise": "6.1.1",
+    "eslint-plugin-standard": "4.1.0",
+    "mocha": "^11.1.0",
+    "nyc": "^17.1.0",
+    "supertest": "^7.0.0"
+  },
+  "files": [
+    "lib/",
+    "LICENSE",
+    "HISTORY.md",
+    "index.js"
+  ],
+  "engines": {
+    "node": ">=18"
+  },
+  "scripts": {
+    "lint": "eslint .",
+    "test": "mocha --reporter spec --check-leaks test/",
+    "test-ci": "nyc --reporter=lcovonly --reporter=text npm test",
+    "test-cov": "nyc --reporter=html --reporter=text npm test"
+  }
+}
diff --git a/backend/node_modules/bytes/History.md b/backend/node_modules/bytes/History.md
new file mode 100644
index 0000000..d60ce0e
--- /dev/null
+++ b/backend/node_modules/bytes/History.md
@@ -0,0 +1,97 @@
+3.1.2 / 2022-01-27
+==================
+
+  * Fix return value for un-parsable strings
+
+3.1.1 / 2021-11-15
+==================
+
+  * Fix "thousandsSeparator" incorrecting formatting fractional part
+
+3.1.0 / 2019-01-22
+==================
+
+  * Add petabyte (`pb`) support
+
+3.0.0 / 2017-08-31
+==================
+
+  * Change "kB" to "KB" in format output
+  * Remove support for Node.js 0.6
+  * Remove support for ComponentJS
+
+2.5.0 / 2017-03-24
+==================
+
+  * Add option "unit"
+
+2.4.0 / 2016-06-01
+==================
+
+  * Add option "unitSeparator"
+
+2.3.0 / 2016-02-15
+==================
+
+  * Drop partial bytes on all parsed units
+  * Fix non-finite numbers to `.format` to return `null`
+  * Fix parsing byte string that looks like hex
+  * perf: hoist regular expressions
+
+2.2.0 / 2015-11-13
+==================
+
+  * add option "decimalPlaces"
+  * add option "fixedDecimals"
+
+2.1.0 / 2015-05-21
+==================
+
+  * add `.format` export
+  * add `.parse` export
+
+2.0.2 / 2015-05-20
+==================
+
+  * remove map recreation
+  * remove unnecessary object construction
+
+2.0.1 / 2015-05-07
+==================
+
+  * fix browserify require
+  * remove node.extend dependency
+
+2.0.0 / 2015-04-12
+==================
+
+  * add option "case"
+  * add option "thousandsSeparator"
+  * return "null" on invalid parse input
+  * support proper round-trip: bytes(bytes(num)) === num
+  * units no longer case sensitive when parsing
+
+1.0.0 / 2014-05-05
+==================
+
+ * add negative support. fixes #6
+
+0.3.0 / 2014-03-19
+==================
+
+ * added terabyte support
+
+0.2.1 / 2013-04-01
+==================
+
+  * add .component
+
+0.2.0 / 2012-10-28
+==================
+
+  * bytes(200).should.eql('200b')
+
+0.1.0 / 2012-07-04
+==================
+
+  * add bytes to string conversion [yields]
diff --git a/backend/node_modules/bytes/LICENSE b/backend/node_modules/bytes/LICENSE
new file mode 100644
index 0000000..63e95a9
--- /dev/null
+++ b/backend/node_modules/bytes/LICENSE
@@ -0,0 +1,23 @@
+(The MIT License)
+
+Copyright (c) 2012-2014 TJ Holowaychuk <tj@vision-media.ca>
+Copyright (c) 2015 Jed Watson <jed.watson@me.com>
+
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of this software and associated documentation files (the
+'Software'), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sublicense, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to
+the following conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
diff --git a/backend/node_modules/bytes/Readme.md b/backend/node_modules/bytes/Readme.md
new file mode 100644
index 0000000..5790e23
--- /dev/null
+++ b/backend/node_modules/bytes/Readme.md
@@ -0,0 +1,152 @@
+# Bytes utility
+
+[![NPM Version][npm-image]][npm-url]
+[![NPM Downloads][downloads-image]][downloads-url]
+[![Build Status][ci-image]][ci-url]
+[![Test Coverage][coveralls-image]][coveralls-url]
+
+Utility to parse a string bytes (ex: `1TB`) to bytes (`1099511627776`) and vice-versa.
+
+## Installation
+
+This is a [Node.js](https://nodejs.org/en/) module available through the
+[npm registry](https://www.npmjs.com/). Installation is done using the
+[`npm install` command](https://docs.npmjs.com/getting-started/installing-npm-packages-locally):
+
+```bash
+$ npm install bytes
+```
+
+## Usage
+
+```js
+var bytes = require('bytes');
+```
+
+#### bytes(number｜string value, [options]): number｜string｜null
+
+Default export function. Delegates to either `bytes.format` or `bytes.parse` based on the type of `value`.
+
+**Arguments**
+
+| Name    | Type     | Description        |
+|---------|----------|--------------------|
+| value   | `number`｜`string` | Number value to format or string value to parse |
+| options | `Object` | Conversion options for `format` |
+
+**Returns**
+
+| Name    | Type             | Description                                     |
+|---------|------------------|-------------------------------------------------|
+| results | `string`｜`number`｜`null` | Return null upon error. Numeric value in bytes, or string value otherwise. |
+
+**Example**
+
+```js
+bytes(1024);
+// output: '1KB'
+
+bytes('1KB');
+// output: 1024
+```
+
+#### bytes.format(number value, [options]): string｜null
+
+Format the given value in bytes into a string. If the value is negative, it is kept as such. If it is a float, it is
+ rounded.
+
+**Arguments**
+
+| Name    | Type     | Description        |
+|---------|----------|--------------------|
+| value   | `number` | Value in bytes     |
+| options | `Object` | Conversion options |
+
+**Options**
+
+| Property          | Type   | Description                                                                             |
+|-------------------|--------|-----------------------------------------------------------------------------------------|
+| decimalPlaces | `number`｜`null` | Maximum number of decimal places to include in output. Default value to `2`. |
+| fixedDecimals | `boolean`｜`null` | Whether to always display the maximum number of decimal places. Default value to `false` |
+| thousandsSeparator | `string`｜`null` | Example of values: `' '`, `','` and `'.'`... Default value to `''`. |
+| unit | `string`｜`null` | The unit in which the result will be returned (B/KB/MB/GB/TB). Default value to `''` (which means auto detect). |
+| unitSeparator | `string`｜`null` | Separator to use between number and unit. Default value to `''`. |
+
+**Returns**
+
+| Name    | Type             | Description                                     |
+|---------|------------------|-------------------------------------------------|
+| results | `string`｜`null` | Return null upon error. String value otherwise. |
+
+**Example**
+
+```js
+bytes.format(1024);
+// output: '1KB'
+
+bytes.format(1000);
+// output: '1000B'
+
+bytes.format(1000, {thousandsSeparator: ' '});
+// output: '1 000B'
+
+bytes.format(1024 * 1.7, {decimalPlaces: 0});
+// output: '2KB'
+
+bytes.format(1024, {unitSeparator: ' '});
+// output: '1 KB'
+```
+
+#### bytes.parse(string｜number value): number｜null
+
+Parse the string value into an integer in bytes. If no unit is given, or `value`
+is a number, it is assumed the value is in bytes.
+
+Supported units and abbreviations are as follows and are case-insensitive:
+
+  * `b` for bytes
+  * `kb` for kilobytes
+  * `mb` for megabytes
+  * `gb` for gigabytes
+  * `tb` for terabytes
+  * `pb` for petabytes
+
+The units are in powers of two, not ten. This means 1kb = 1024b according to this parser.
+
+**Arguments**
+
+| Name          | Type   | Description        |
+|---------------|--------|--------------------|
+| value   | `string`｜`number` | String to parse, or number in bytes.   |
+
+**Returns**
+
+| Name    | Type        | Description             |
+|---------|-------------|-------------------------|
+| results | `number`｜`null` | Return null upon error. Value in bytes otherwise. |
+
+**Example**
+
+```js
+bytes.parse('1KB');
+// output: 1024
+
+bytes.parse('1024');
+// output: 1024
+
+bytes.parse(1024);
+// output: 1024
+```
+
+## License
+
+[MIT](LICENSE)
+
+[ci-image]: https://badgen.net/github/checks/visionmedia/bytes.js/master?label=ci
+[ci-url]: https://github.com/visionmedia/bytes.js/actions?query=workflow%3Aci
+[coveralls-image]: https://badgen.net/coveralls/c/github/visionmedia/bytes.js/master
+[coveralls-url]: https://coveralls.io/r/visionmedia/bytes.js?branch=master
+[downloads-image]: https://badgen.net/npm/dm/bytes
+[downloads-url]: https://npmjs.org/package/bytes
+[npm-image]: https://badgen.net/npm/v/bytes
+[npm-url]: https://npmjs.org/package/bytes
diff --git a/backend/node_modules/bytes/index.js b/backend/node_modules/bytes/index.js
new file mode 100644
index 0000000..6f2d0f8
--- /dev/null
+++ b/backend/node_modules/bytes/index.js
@@ -0,0 +1,170 @@
+/*!
+ * bytes
+ * Copyright(c) 2012-2014 TJ Holowaychuk
+ * Copyright(c) 2015 Jed Watson
+ * MIT Licensed
+ */
+
+'use strict';
+
+/**
+ * Module exports.
+ * @public
+ */
+
+module.exports = bytes;
+module.exports.format = format;
+module.exports.parse = parse;
+
+/**
+ * Module variables.
+ * @private
+ */
+
+var formatThousandsRegExp = /\B(?=(\d{3})+(?!\d))/g;
+
+var formatDecimalsRegExp = /(?:\.0*|(\.[^0]+)0+)$/;
+
+var map = {
+  b:  1,
+  kb: 1 << 10,
+  mb: 1 << 20,
+  gb: 1 << 30,
+  tb: Math.pow(1024, 4),
+  pb: Math.pow(1024, 5),
+};
+
+var parseRegExp = /^((-|\+)?(\d+(?:\.\d+)?)) *(kb|mb|gb|tb|pb)$/i;
+
+/**
+ * Convert the given value in bytes into a string or parse to string to an integer in bytes.
+ *
+ * @param {string|number} value
+ * @param {{
+ *  case: [string],
+ *  decimalPlaces: [number]
+ *  fixedDecimals: [boolean]
+ *  thousandsSeparator: [string]
+ *  unitSeparator: [string]
+ *  }} [options] bytes options.
+ *
+ * @returns {string|number|null}
+ */
+
+function bytes(value, options) {
+  if (typeof value === 'string') {
+    return parse(value);
+  }
+
+  if (typeof value === 'number') {
+    return format(value, options);
+  }
+
+  return null;
+}
+
+/**
+ * Format the given value in bytes into a string.
+ *
+ * If the value is negative, it is kept as such. If it is a float,
+ * it is rounded.
+ *
+ * @param {number} value
+ * @param {object} [options]
+ * @param {number} [options.decimalPlaces=2]
+ * @param {number} [options.fixedDecimals=false]
+ * @param {string} [options.thousandsSeparator=]
+ * @param {string} [options.unit=]
+ * @param {string} [options.unitSeparator=]
+ *
+ * @returns {string|null}
+ * @public
+ */
+
+function format(value, options) {
+  if (!Number.isFinite(value)) {
+    return null;
+  }
+
+  var mag = Math.abs(value);
+  var thousandsSeparator = (options && options.thousandsSeparator) || '';
+  var unitSeparator = (options && options.unitSeparator) || '';
+  var decimalPlaces = (options && options.decimalPlaces !== undefined) ? options.decimalPlaces : 2;
+  var fixedDecimals = Boolean(options && options.fixedDecimals);
+  var unit = (options && options.unit) || '';
+
+  if (!unit || !map[unit.toLowerCase()]) {
+    if (mag >= map.pb) {
+      unit = 'PB';
+    } else if (mag >= map.tb) {
+      unit = 'TB';
+    } else if (mag >= map.gb) {
+      unit = 'GB';
+    } else if (mag >= map.mb) {
+      unit = 'MB';
+    } else if (mag >= map.kb) {
+      unit = 'KB';
+    } else {
+      unit = 'B';
+    }
+  }
+
+  var val = value / map[unit.toLowerCase()];
+  var str = val.toFixed(decimalPlaces);
+
+  if (!fixedDecimals) {
+    str = str.replace(formatDecimalsRegExp, '$1');
+  }
+
+  if (thousandsSeparator) {
+    str = str.split('.').map(function (s, i) {
+      return i === 0
+        ? s.replace(formatThousandsRegExp, thousandsSeparator)
+        : s
+    }).join('.');
+  }
+
+  return str + unitSeparator + unit;
+}
+
+/**
+ * Parse the string value into an integer in bytes.
+ *
+ * If no unit is given, it is assumed the value is in bytes.
+ *
+ * @param {number|string} val
+ *
+ * @returns {number|null}
+ * @public
+ */
+
+function parse(val) {
+  if (typeof val === 'number' && !isNaN(val)) {
+    return val;
+  }
+
+  if (typeof val !== 'string') {
+    return null;
+  }
+
+  // Test if the string passed is valid
+  var results = parseRegExp.exec(val);
+  var floatValue;
+  var unit = 'b';
+
+  if (!results) {
+    // Nothing could be extracted from the given string
+    floatValue = parseInt(val, 10);
+    unit = 'b'
+  } else {
+    // Retrieve the value and the unit
+    floatValue = parseFloat(results[1]);
+    unit = results[4].toLowerCase();
+  }
+
+  if (isNaN(floatValue)) {
+    return null;
+  }
+
+  return Math.floor(map[unit] * floatValue);
+}
diff --git a/backend/node_modules/bytes/package.json b/backend/node_modules/bytes/package.json
new file mode 100644
index 0000000..f2b6a8b
--- /dev/null
+++ b/backend/node_modules/bytes/package.json
@@ -0,0 +1,42 @@
+{
+  "name": "bytes",
+  "description": "Utility to parse a string bytes to bytes and vice-versa",
+  "version": "3.1.2",
+  "author": "TJ Holowaychuk <tj@vision-media.ca> (http://tjholowaychuk.com)",
+  "contributors": [
+    "Jed Watson <jed.watson@me.com>",
+    "Théo FIDRY <theo.fidry@gmail.com>"
+  ],
+  "license": "MIT",
+  "keywords": [
+    "byte",
+    "bytes",
+    "utility",
+    "parse",
+    "parser",
+    "convert",
+    "converter"
+  ],
+  "repository": "visionmedia/bytes.js",
+  "devDependencies": {
+    "eslint": "7.32.0",
+    "eslint-plugin-markdown": "2.2.1",
+    "mocha": "9.2.0",
+    "nyc": "15.1.0"
+  },
+  "files": [
+    "History.md",
+    "LICENSE",
+    "Readme.md",
+    "index.js"
+  ],
+  "engines": {
+    "node": ">= 0.8"
+  },
+  "scripts": {
+    "lint": "eslint .",
+    "test": "mocha --check-leaks --reporter spec",
+    "test-ci": "nyc --reporter=lcov --reporter=text npm test",
+    "test-cov": "nyc --reporter=html --reporter=text npm test"
+  }
+}
diff --git a/backend/node_modules/call-bind-apply-helpers/.eslintrc b/backend/node_modules/call-bind-apply-helpers/.eslintrc
new file mode 100644
index 0000000..201e859
--- /dev/null
+++ b/backend/node_modules/call-bind-apply-helpers/.eslintrc
@@ -0,0 +1,17 @@
+{
+	"root": true,
+
+	"extends": "@ljharb",
+
+	"rules": {
+		"func-name-matching": 0,
+		"id-length": 0,
+		"new-cap": [2, {
+			"capIsNewExceptions": [
+				"GetIntrinsic",
+			],
+		}],
+		"no-extra-parens": 0,
+		"no-magic-numbers": 0,
+	},
+}
diff --git a/backend/node_modules/call-bind-apply-helpers/.github/FUNDING.yml b/backend/node_modules/call-bind-apply-helpers/.github/FUNDING.yml
new file mode 100644
index 0000000..0011e9d
--- /dev/null
+++ b/backend/node_modules/call-bind-apply-helpers/.github/FUNDING.yml
@@ -0,0 +1,12 @@
+# These are supported funding model platforms
+
+github: [ljharb]
+patreon: # Replace with a single Patreon username
+open_collective: # Replace with a single Open Collective username
+ko_fi: # Replace with a single Ko-fi username
+tidelift: npm/call-bind-apply-helpers
+community_bridge: # Replace with a single Community Bridge project-name e.g., cloud-foundry
+liberapay: # Replace with a single Liberapay username
+issuehunt: # Replace with a single IssueHunt username
+otechie: # Replace with a single Otechie username
+custom: # Replace with up to 4 custom sponsorship URLs e.g., ['link1', 'link2']
diff --git a/backend/node_modules/call-bind-apply-helpers/.nycrc b/backend/node_modules/call-bind-apply-helpers/.nycrc
new file mode 100644
index 0000000..bdd626c
--- /dev/null
+++ b/backend/node_modules/call-bind-apply-helpers/.nycrc
@@ -0,0 +1,9 @@
+{
+	"all": true,
+	"check-coverage": false,
+	"reporter": ["text-summary", "text", "html", "json"],
+	"exclude": [
+		"coverage",
+		"test"
+	]
+}
diff --git a/backend/node_modules/call-bind-apply-helpers/CHANGELOG.md b/backend/node_modules/call-bind-apply-helpers/CHANGELOG.md
new file mode 100644
index 0000000..2484942
--- /dev/null
+++ b/backend/node_modules/call-bind-apply-helpers/CHANGELOG.md
@@ -0,0 +1,30 @@
+# Changelog
+
+All notable changes to this project will be documented in this file.
+
+The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/)
+and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
+
+## [v1.0.2](https://github.com/ljharb/call-bind-apply-helpers/compare/v1.0.1...v1.0.2) - 2025-02-12
+
+### Commits
+
+- [types] improve inferred types [`e6f9586`](https://github.com/ljharb/call-bind-apply-helpers/commit/e6f95860a3c72879cb861a858cdfb8138fbedec1)
+- [Dev Deps] update `@arethetypeswrong/cli`, `@ljharb/tsconfig`, `@types/tape`, `es-value-fixtures`, `for-each`, `has-strict-mode`, `object-inspect` [`e43d540`](https://github.com/ljharb/call-bind-apply-helpers/commit/e43d5409f97543bfbb11f345d47d8ce4e066d8c1)
+
+## [v1.0.1](https://github.com/ljharb/call-bind-apply-helpers/compare/v1.0.0...v1.0.1) - 2024-12-08
+
+### Commits
+
+- [types] `reflectApply`: fix types [`4efc396`](https://github.com/ljharb/call-bind-apply-helpers/commit/4efc3965351a4f02cc55e836fa391d3d11ef2ef8)
+- [Fix] `reflectApply`: oops, Reflect is not a function [`83cc739`](https://github.com/ljharb/call-bind-apply-helpers/commit/83cc7395de6b79b7730bdf092f1436f0b1263c75)
+- [Dev Deps] update `@arethetypeswrong/cli` [`80bd5d3`](https://github.com/ljharb/call-bind-apply-helpers/commit/80bd5d3ae58b4f6b6995ce439dd5a1bcb178a940)
+
+## v1.0.0 - 2024-12-05
+
+### Commits
+
+- Initial implementation, tests, readme [`7879629`](https://github.com/ljharb/call-bind-apply-helpers/commit/78796290f9b7430c9934d6f33d94ae9bc89fce04)
+- Initial commit [`3f1dc16`](https://github.com/ljharb/call-bind-apply-helpers/commit/3f1dc164afc43285631b114a5f9dd9137b2b952f)
+- npm init [`081df04`](https://github.com/ljharb/call-bind-apply-helpers/commit/081df048c312fcee400922026f6e97281200a603)
+- Only apps should have lockfiles [`5b9ca0f`](https://github.com/ljharb/call-bind-apply-helpers/commit/5b9ca0fe8101ebfaf309c549caac4e0a017ed930)
diff --git a/backend/node_modules/call-bind-apply-helpers/LICENSE b/backend/node_modules/call-bind-apply-helpers/LICENSE
new file mode 100644
index 0000000..f82f389
--- /dev/null
+++ b/backend/node_modules/call-bind-apply-helpers/LICENSE
@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2024 Jordan Harband
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
diff --git a/backend/node_modules/call-bind-apply-helpers/README.md b/backend/node_modules/call-bind-apply-helpers/README.md
new file mode 100644
index 0000000..8fc0dae
--- /dev/null
+++ b/backend/node_modules/call-bind-apply-helpers/README.md
@@ -0,0 +1,62 @@
+# call-bind-apply-helpers <sup>[![Version Badge][npm-version-svg]][package-url]</sup>
+
+[![github actions][actions-image]][actions-url]
+[![coverage][codecov-image]][codecov-url]
+[![dependency status][deps-svg]][deps-url]
+[![dev dependency status][dev-deps-svg]][dev-deps-url]
+[![License][license-image]][license-url]
+[![Downloads][downloads-image]][downloads-url]
+
+[![npm badge][npm-badge-png]][package-url]
+
+Helper functions around Function call/apply/bind, for use in `call-bind`.
+
+The only packages that should likely ever use this package directly are `call-bind` and `get-intrinsic`.
+Please use `call-bind` unless you have a very good reason not to.
+
+## Getting started
+
+```sh
+npm install --save call-bind-apply-helpers
+```
+
+## Usage/Examples
+
+```js
+const assert = require('assert');
+const callBindBasic = require('call-bind-apply-helpers');
+
+function f(a, b) {
+	assert.equal(this, 1);
+	assert.equal(a, 2);
+	assert.equal(b, 3);
+	assert.equal(arguments.length, 2);
+}
+
+const fBound = callBindBasic([f, 1]);
+
+delete Function.prototype.call;
+delete Function.prototype.bind;
+
+fBound(2, 3);
+```
+
+## Tests
+
+Clone the repo, `npm install`, and run `npm test`
+
+[package-url]: https://npmjs.org/package/call-bind-apply-helpers
+[npm-version-svg]: https://versionbadg.es/ljharb/call-bind-apply-helpers.svg
+[deps-svg]: https://david-dm.org/ljharb/call-bind-apply-helpers.svg
+[deps-url]: https://david-dm.org/ljharb/call-bind-apply-helpers
+[dev-deps-svg]: https://david-dm.org/ljharb/call-bind-apply-helpers/dev-status.svg
+[dev-deps-url]: https://david-dm.org/ljharb/call-bind-apply-helpers#info=devDependencies
+[npm-badge-png]: https://nodei.co/npm/call-bind-apply-helpers.png?downloads=true&stars=true
+[license-image]: https://img.shields.io/npm/l/call-bind-apply-helpers.svg
+[license-url]: LICENSE
+[downloads-image]: https://img.shields.io/npm/dm/call-bind-apply-helpers.svg
+[downloads-url]: https://npm-stat.com/charts.html?package=call-bind-apply-helpers
+[codecov-image]: https://codecov.io/gh/ljharb/call-bind-apply-helpers/branch/main/graphs/badge.svg
+[codecov-url]: https://app.codecov.io/gh/ljharb/call-bind-apply-helpers/
+[actions-image]: https://img.shields.io/endpoint?url=https://github-actions-badge-u3jn4tfpocch.runkit.sh/ljharb/call-bind-apply-helpers
+[actions-url]: https://github.com/ljharb/call-bind-apply-helpers/actions
diff --git a/backend/node_modules/call-bind-apply-helpers/actualApply.d.ts b/backend/node_modules/call-bind-apply-helpers/actualApply.d.ts
new file mode 100644
index 0000000..b87286a
--- /dev/null
+++ b/backend/node_modules/call-bind-apply-helpers/actualApply.d.ts
@@ -0,0 +1 @@
+export = Reflect.apply;
\ No newline at end of file
diff --git a/backend/node_modules/call-bind-apply-helpers/actualApply.js b/backend/node_modules/call-bind-apply-helpers/actualApply.js
new file mode 100644
index 0000000..ffa5135
--- /dev/null
+++ b/backend/node_modules/call-bind-apply-helpers/actualApply.js
@@ -0,0 +1,10 @@
+'use strict';
+
+var bind = require('function-bind');
+
+var $apply = require('./functionApply');
+var $call = require('./functionCall');
+var $reflectApply = require('./reflectApply');
+
+/** @type {import('./actualApply')} */
+module.exports = $reflectApply || bind.call($call, $apply);
diff --git a/backend/node_modules/call-bind-apply-helpers/applyBind.d.ts b/backend/node_modules/call-bind-apply-helpers/applyBind.d.ts
new file mode 100644
index 0000000..d176c1a
--- /dev/null
+++ b/backend/node_modules/call-bind-apply-helpers/applyBind.d.ts
@@ -0,0 +1,19 @@
+import actualApply from './actualApply';
+
+type TupleSplitHead<T extends any[], N extends number> = T['length'] extends N
+  ? T
+  : T extends [...infer R, any]
+  ? TupleSplitHead<R, N>
+  : never
+
+type TupleSplitTail<T, N extends number, O extends any[] = []> = O['length'] extends N
+  ? T
+  : T extends [infer F, ...infer R]
+  ? TupleSplitTail<[...R], N, [...O, F]>
+  : never
+
+type TupleSplit<T extends any[], N extends number> = [TupleSplitHead<T, N>, TupleSplitTail<T, N>]
+
+declare function applyBind(...args: TupleSplit<Parameters<typeof actualApply>, 2>[1]): ReturnType<typeof actualApply>;
+
+export = applyBind;
\ No newline at end of file
diff --git a/backend/node_modules/call-bind-apply-helpers/applyBind.js b/backend/node_modules/call-bind-apply-helpers/applyBind.js
new file mode 100644
index 0000000..d2b7723
--- /dev/null
+++ b/backend/node_modules/call-bind-apply-helpers/applyBind.js
@@ -0,0 +1,10 @@
+'use strict';
+
+var bind = require('function-bind');
+var $apply = require('./functionApply');
+var actualApply = require('./actualApply');
+
+/** @type {import('./applyBind')} */
+module.exports = function applyBind() {
+	return actualApply(bind, $apply, arguments);
+};
diff --git a/backend/node_modules/call-bind-apply-helpers/functionApply.d.ts b/backend/node_modules/call-bind-apply-helpers/functionApply.d.ts
new file mode 100644
index 0000000..1f6e11b
--- /dev/null
+++ b/backend/node_modules/call-bind-apply-helpers/functionApply.d.ts
@@ -0,0 +1 @@
+export = Function.prototype.apply;
\ No newline at end of file
diff --git a/backend/node_modules/call-bind-apply-helpers/functionApply.js b/backend/node_modules/call-bind-apply-helpers/functionApply.js
new file mode 100644
index 0000000..c71df9c
--- /dev/null
+++ b/backend/node_modules/call-bind-apply-helpers/functionApply.js
@@ -0,0 +1,4 @@
+'use strict';
+
+/** @type {import('./functionApply')} */
+module.exports = Function.prototype.apply;
diff --git a/backend/node_modules/call-bind-apply-helpers/functionCall.d.ts b/backend/node_modules/call-bind-apply-helpers/functionCall.d.ts
new file mode 100644
index 0000000..15e93df
--- /dev/null
+++ b/backend/node_modules/call-bind-apply-helpers/functionCall.d.ts
@@ -0,0 +1 @@
+export = Function.prototype.call;
\ No newline at end of file
diff --git a/backend/node_modules/call-bind-apply-helpers/functionCall.js b/backend/node_modules/call-bind-apply-helpers/functionCall.js
new file mode 100644
index 0000000..7a8d873
--- /dev/null
+++ b/backend/node_modules/call-bind-apply-helpers/functionCall.js
@@ -0,0 +1,4 @@
+'use strict';
+
+/** @type {import('./functionCall')} */
+module.exports = Function.prototype.call;
diff --git a/backend/node_modules/call-bind-apply-helpers/index.d.ts b/backend/node_modules/call-bind-apply-helpers/index.d.ts
new file mode 100644
index 0000000..541516b
--- /dev/null
+++ b/backend/node_modules/call-bind-apply-helpers/index.d.ts
@@ -0,0 +1,64 @@
+type RemoveFromTuple<
+  Tuple extends readonly unknown[],
+  RemoveCount extends number,
+  Index extends 1[] = []
+> = Index["length"] extends RemoveCount
+  ? Tuple
+  : Tuple extends [infer First, ...infer Rest]
+  ? RemoveFromTuple<Rest, RemoveCount, [...Index, 1]>
+  : Tuple;
+
+type ConcatTuples<
+  Prefix extends readonly unknown[],
+  Suffix extends readonly unknown[]
+> = [...Prefix, ...Suffix];
+
+type ExtractFunctionParams<T> = T extends (this: infer TThis, ...args: infer P extends readonly unknown[]) => infer R
+  ? { thisArg: TThis; params: P; returnType: R }
+  : never;
+
+type BindFunction<
+  T extends (this: any, ...args: any[]) => any,
+  TThis,
+  TBoundArgs extends readonly unknown[],
+  ReceiverBound extends boolean
+> = ExtractFunctionParams<T> extends {
+  thisArg: infer OrigThis;
+  params: infer P extends readonly unknown[];
+  returnType: infer R;
+}
+  ? ReceiverBound extends true
+    ? (...args: RemoveFromTuple<P, Extract<TBoundArgs["length"], number>>) => R extends [OrigThis, ...infer Rest]
+      ? [TThis, ...Rest] // Replace `this` with `thisArg`
+      : R
+    : <U, RemainingArgs extends RemoveFromTuple<P, Extract<TBoundArgs["length"], number>>>(
+        thisArg: U,
+        ...args: RemainingArgs
+      ) => R extends [OrigThis, ...infer Rest]
+      ? [U, ...ConcatTuples<TBoundArgs, Rest>] // Preserve bound args in return type
+      : R
+  : never;
+
+declare function callBind<
+  const T extends (this: any, ...args: any[]) => any,
+  Extracted extends ExtractFunctionParams<T>,
+  const TBoundArgs extends Partial<Extracted["params"]> & readonly unknown[],
+  const TThis extends Extracted["thisArg"]
+>(
+  args: [fn: T, thisArg: TThis, ...boundArgs: TBoundArgs]
+): BindFunction<T, TThis, TBoundArgs, true>;
+
+declare function callBind<
+  const T extends (this: any, ...args: any[]) => any,
+  Extracted extends ExtractFunctionParams<T>,
+  const TBoundArgs extends Partial<Extracted["params"]> & readonly unknown[]
+>(
+  args: [fn: T, ...boundArgs: TBoundArgs]
+): BindFunction<T, Extracted["thisArg"], TBoundArgs, false>;
+
+declare function callBind<const TArgs extends readonly unknown[]>(
+  args: [fn: Exclude<TArgs[0], Function>, ...rest: TArgs]
+): never;
+
+// export as namespace callBind;
+export = callBind;
diff --git a/backend/node_modules/call-bind-apply-helpers/index.js b/backend/node_modules/call-bind-apply-helpers/index.js
new file mode 100644
index 0000000..2f6dab4
--- /dev/null
+++ b/backend/node_modules/call-bind-apply-helpers/index.js
@@ -0,0 +1,15 @@
+'use strict';
+
+var bind = require('function-bind');
+var $TypeError = require('es-errors/type');
+
+var $call = require('./functionCall');
+var $actualApply = require('./actualApply');
+
+/** @type {(args: [Function, thisArg?: unknown, ...args: unknown[]]) => Function} TODO FIXME, find a way to use import('.') */
+module.exports = function callBindBasic(args) {
+	if (args.length < 1 || typeof args[0] !== 'function') {
+		throw new $TypeError('a function is required');
+	}
+	return $actualApply(bind, $call, args);
+};
diff --git a/backend/node_modules/call-bind-apply-helpers/package.json b/backend/node_modules/call-bind-apply-helpers/package.json
new file mode 100644
index 0000000..923b8be
--- /dev/null
+++ b/backend/node_modules/call-bind-apply-helpers/package.json
@@ -0,0 +1,85 @@
+{
+	"name": "call-bind-apply-helpers",
+	"version": "1.0.2",
+	"description": "Helper functions around Function call/apply/bind, for use in `call-bind`",
+	"main": "index.js",
+	"exports": {
+		".": "./index.js",
+		"./actualApply": "./actualApply.js",
+		"./applyBind": "./applyBind.js",
+		"./functionApply": "./functionApply.js",
+		"./functionCall": "./functionCall.js",
+		"./reflectApply": "./reflectApply.js",
+		"./package.json": "./package.json"
+	},
+	"scripts": {
+		"prepack": "npmignore --auto --commentLines=auto",
+		"prepublish": "not-in-publish || npm run prepublishOnly",
+		"prepublishOnly": "safe-publish-latest",
+		"prelint": "evalmd README.md",
+		"lint": "eslint --ext=.js,.mjs .",
+		"postlint": "tsc -p . && attw -P",
+		"pretest": "npm run lint",
+		"tests-only": "nyc tape 'test/**/*.js'",
+		"test": "npm run tests-only",
+		"posttest": "npx npm@'>=10.2' audit --production",
+		"version": "auto-changelog && git add CHANGELOG.md",
+		"postversion": "auto-changelog && git add CHANGELOG.md && git commit --no-edit --amend && git tag -f \"v$(node -e \"console.log(require('./package.json').version)\")\""
+	},
+	"repository": {
+		"type": "git",
+		"url": "git+https://github.com/ljharb/call-bind-apply-helpers.git"
+	},
+	"author": "Jordan Harband <ljharb@gmail.com>",
+	"license": "MIT",
+	"bugs": {
+		"url": "https://github.com/ljharb/call-bind-apply-helpers/issues"
+	},
+	"homepage": "https://github.com/ljharb/call-bind-apply-helpers#readme",
+	"dependencies": {
+		"es-errors": "^1.3.0",
+		"function-bind": "^1.1.2"
+	},
+	"devDependencies": {
+		"@arethetypeswrong/cli": "^0.17.3",
+		"@ljharb/eslint-config": "^21.1.1",
+		"@ljharb/tsconfig": "^0.2.3",
+		"@types/for-each": "^0.3.3",
+		"@types/function-bind": "^1.1.10",
+		"@types/object-inspect": "^1.13.0",
+		"@types/tape": "^5.8.1",
+		"auto-changelog": "^2.5.0",
+		"encoding": "^0.1.13",
+		"es-value-fixtures": "^1.7.1",
+		"eslint": "=8.8.0",
+		"evalmd": "^0.0.19",
+		"for-each": "^0.3.5",
+		"has-strict-mode": "^1.1.0",
+		"in-publish": "^2.0.1",
+		"npmignore": "^0.3.1",
+		"nyc": "^10.3.2",
+		"object-inspect": "^1.13.4",
+		"safe-publish-latest": "^2.0.0",
+		"tape": "^5.9.0",
+		"typescript": "next"
+	},
+	"testling": {
+		"files": "test/index.js"
+	},
+	"auto-changelog": {
+		"output": "CHANGELOG.md",
+		"template": "keepachangelog",
+		"unreleased": false,
+		"commitLimit": false,
+		"backfillLimit": false,
+		"hideCredit": true
+	},
+	"publishConfig": {
+		"ignore": [
+			".github/workflows"
+		]
+	},
+	"engines": {
+		"node": ">= 0.4"
+	}
+}
diff --git a/backend/node_modules/call-bind-apply-helpers/reflectApply.d.ts b/backend/node_modules/call-bind-apply-helpers/reflectApply.d.ts
new file mode 100644
index 0000000..6b2ae76
--- /dev/null
+++ b/backend/node_modules/call-bind-apply-helpers/reflectApply.d.ts
@@ -0,0 +1,3 @@
+declare const reflectApply: false | typeof Reflect.apply;
+
+export = reflectApply;
diff --git a/backend/node_modules/call-bind-apply-helpers/reflectApply.js b/backend/node_modules/call-bind-apply-helpers/reflectApply.js
new file mode 100644
index 0000000..3d03caa
--- /dev/null
+++ b/backend/node_modules/call-bind-apply-helpers/reflectApply.js
@@ -0,0 +1,4 @@
+'use strict';
+
+/** @type {import('./reflectApply')} */
+module.exports = typeof Reflect !== 'undefined' && Reflect && Reflect.apply;
diff --git a/backend/node_modules/call-bind-apply-helpers/test/index.js b/backend/node_modules/call-bind-apply-helpers/test/index.js
new file mode 100644
index 0000000..1cdc89e
--- /dev/null
+++ b/backend/node_modules/call-bind-apply-helpers/test/index.js
@@ -0,0 +1,63 @@
+'use strict';
+
+var callBind = require('../');
+var hasStrictMode = require('has-strict-mode')();
+var forEach = require('for-each');
+var inspect = require('object-inspect');
+var v = require('es-value-fixtures');
+
+var test = require('tape');
+
+test('callBindBasic', function (t) {
+	forEach(v.nonFunctions, function (nonFunction) {
+		t['throws'](
+			// @ts-expect-error
+			function () { callBind([nonFunction]); },
+			TypeError,
+			inspect(nonFunction) + ' is not a function'
+		);
+	});
+
+	var sentinel = { sentinel: true };
+	/** @type {<T, A extends number, B extends number>(this: T, a: A, b: B) => [T | undefined, A, B]} */
+	var func = function (a, b) {
+		// eslint-disable-next-line no-invalid-this
+		return [!hasStrictMode && this === global ? undefined : this, a, b];
+	};
+	t.equal(func.length, 2, 'original function length is 2');
+
+	/** type {(thisArg: unknown, a: number, b: number) => [unknown, number, number]} */
+	var bound = callBind([func]);
+	/** type {((a: number, b: number) => [typeof sentinel, typeof a, typeof b])} */
+	var boundR = callBind([func, sentinel]);
+	/** type {((b: number) => [typeof sentinel, number, typeof b])} */
+	var boundArg = callBind([func, sentinel, /** @type {const} */ (1)]);
+
+	// @ts-expect-error
+	t.deepEqual(bound(), [undefined, undefined, undefined], 'bound func with no args');
+
+	// @ts-expect-error
+	t.deepEqual(func(), [undefined, undefined, undefined], 'unbound func with too few args');
+	// @ts-expect-error
+	t.deepEqual(bound(1, 2), [hasStrictMode ? 1 : Object(1), 2, undefined], 'bound func too few args');
+	// @ts-expect-error
+	t.deepEqual(boundR(), [sentinel, undefined, undefined], 'bound func with receiver, with too few args');
+	// @ts-expect-error
+	t.deepEqual(boundArg(), [sentinel, 1, undefined], 'bound func with receiver and arg, with too few args');
+
+	t.deepEqual(func(1, 2), [undefined, 1, 2], 'unbound func with right args');
+	t.deepEqual(bound(1, 2, 3), [hasStrictMode ? 1 : Object(1), 2, 3], 'bound func with right args');
+	t.deepEqual(boundR(1, 2), [sentinel, 1, 2], 'bound func with receiver, with right args');
+	t.deepEqual(boundArg(2), [sentinel, 1, 2], 'bound func with receiver and arg, with right arg');
+
+	// @ts-expect-error
+	t.deepEqual(func(1, 2, 3), [undefined, 1, 2], 'unbound func with too many args');
+	// @ts-expect-error
+	t.deepEqual(bound(1, 2, 3, 4), [hasStrictMode ? 1 : Object(1), 2, 3], 'bound func with too many args');
+	// @ts-expect-error
+	t.deepEqual(boundR(1, 2, 3), [sentinel, 1, 2], 'bound func with receiver, with too many args');
+	// @ts-expect-error
+	t.deepEqual(boundArg(2, 3), [sentinel, 1, 2], 'bound func with receiver and arg, with too many args');
+
+	t.end();
+});
diff --git a/backend/node_modules/call-bind-apply-helpers/tsconfig.json b/backend/node_modules/call-bind-apply-helpers/tsconfig.json
new file mode 100644
index 0000000..aef9993
--- /dev/null
+++ b/backend/node_modules/call-bind-apply-helpers/tsconfig.json
@@ -0,0 +1,9 @@
+{
+	"extends": "@ljharb/tsconfig",
+	"compilerOptions": {
+		"target": "es2021",
+	},
+	"exclude": [
+		"coverage",
+	],
+}
\ No newline at end of file
diff --git a/backend/node_modules/call-bound/.eslintrc b/backend/node_modules/call-bound/.eslintrc
new file mode 100644
index 0000000..2612ed8
--- /dev/null
+++ b/backend/node_modules/call-bound/.eslintrc
@@ -0,0 +1,13 @@
+{
+	"root": true,
+
+	"extends": "@ljharb",
+
+	"rules": {
+		"new-cap": [2, {
+			"capIsNewExceptions": [
+				"GetIntrinsic",
+			],
+		}],
+	},
+}
diff --git a/backend/node_modules/call-bound/.github/FUNDING.yml b/backend/node_modules/call-bound/.github/FUNDING.yml
new file mode 100644
index 0000000..2a2a135
--- /dev/null
+++ b/backend/node_modules/call-bound/.github/FUNDING.yml
@@ -0,0 +1,12 @@
+# These are supported funding model platforms
+
+github: [ljharb]
+patreon: # Replace with a single Patreon username
+open_collective: # Replace with a single Open Collective username
+ko_fi: # Replace with a single Ko-fi username
+tidelift: npm/call-bound
+community_bridge: # Replace with a single Community Bridge project-name e.g., cloud-foundry
+liberapay: # Replace with a single Liberapay username
+issuehunt: # Replace with a single IssueHunt username
+otechie: # Replace with a single Otechie username
+custom: # Replace with up to 4 custom sponsorship URLs e.g., ['link1', 'link2']
diff --git a/backend/node_modules/call-bound/.nycrc b/backend/node_modules/call-bound/.nycrc
new file mode 100644
index 0000000..bdd626c
--- /dev/null
+++ b/backend/node_modules/call-bound/.nycrc
@@ -0,0 +1,9 @@
+{
+	"all": true,
+	"check-coverage": false,
+	"reporter": ["text-summary", "text", "html", "json"],
+	"exclude": [
+		"coverage",
+		"test"
+	]
+}
diff --git a/backend/node_modules/call-bound/CHANGELOG.md b/backend/node_modules/call-bound/CHANGELOG.md
new file mode 100644
index 0000000..8bde4e9
--- /dev/null
+++ b/backend/node_modules/call-bound/CHANGELOG.md
@@ -0,0 +1,42 @@
+# Changelog
+
+All notable changes to this project will be documented in this file.
+
+The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/)
+and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
+
+## [v1.0.4](https://github.com/ljharb/call-bound/compare/v1.0.3...v1.0.4) - 2025-03-03
+
+### Commits
+
+- [types] improve types [`e648922`](https://github.com/ljharb/call-bound/commit/e6489222a9e54f350fbf952ceabe51fd8b6027ff)
+- [Dev Deps] update `@arethetypeswrong/cli`, `@ljharb/tsconfig`, `@types/tape`, `es-value-fixtures`, `for-each`, `has-strict-mode`, `object-inspect` [`a42a5eb`](https://github.com/ljharb/call-bound/commit/a42a5ebe6c1b54fcdc7997c7dc64fdca9e936719)
+- [Deps] update `call-bind-apply-helpers`, `get-intrinsic` [`f529eac`](https://github.com/ljharb/call-bound/commit/f529eac132404c17156bbc23ab2297a25d0f20b8)
+
+## [v1.0.3](https://github.com/ljharb/call-bound/compare/v1.0.2...v1.0.3) - 2024-12-15
+
+### Commits
+
+- [Refactor] use `call-bind-apply-helpers` instead of `call-bind` [`5e0b134`](https://github.com/ljharb/call-bound/commit/5e0b13496df14fb7d05dae9412f088da8d3f75be)
+- [Deps] update `get-intrinsic` [`41fc967`](https://github.com/ljharb/call-bound/commit/41fc96732a22c7b7e8f381f93ccc54bb6293be2e)
+- [readme] fix example [`79a0137`](https://github.com/ljharb/call-bound/commit/79a0137723f7c6d09c9c05452bbf8d5efb5d6e49)
+- [meta] add `sideEffects` flag [`08b07be`](https://github.com/ljharb/call-bound/commit/08b07be7f1c03f67dc6f3cdaf0906259771859f7)
+
+## [v1.0.2](https://github.com/ljharb/call-bound/compare/v1.0.1...v1.0.2) - 2024-12-10
+
+### Commits
+
+- [Dev Deps] update `@arethetypeswrong/cli`, `@ljharb/tsconfig`, `gopd` [`e6a5ffe`](https://github.com/ljharb/call-bound/commit/e6a5ffe849368fe4f74dfd6cdeca1b9baa39e8d5)
+- [Deps] update `call-bind`, `get-intrinsic` [`2aeb5b5`](https://github.com/ljharb/call-bound/commit/2aeb5b521dc2b2683d1345c753ea1161de2d1c14)
+- [types] improve return type [`1a0c9fe`](https://github.com/ljharb/call-bound/commit/1a0c9fe3114471e7ca1f57d104e2efe713bb4871)
+
+## v1.0.1 - 2024-12-05
+
+### Commits
+
+- Initial implementation, tests, readme, types [`6d94121`](https://github.com/ljharb/call-bound/commit/6d94121a9243602e506334069f7a03189fe3363d)
+- Initial commit [`0eae867`](https://github.com/ljharb/call-bound/commit/0eae867334ea025c33e6e91cdecfc9df96680cf9)
+- npm init [`71b2479`](https://github.com/ljharb/call-bound/commit/71b2479c6723e0b7d91a6b663613067e98b7b275)
+- Only apps should have lockfiles [`c3754a9`](https://github.com/ljharb/call-bound/commit/c3754a949b7f9132b47e2d18c1729889736741eb)
+- [actions] skip `npm ls` in node &lt; 10 [`74275a5`](https://github.com/ljharb/call-bound/commit/74275a5186b8caf6309b6b97472bdcb0df4683a8)
+- [Dev Deps] add missing peer dep [`1354de8`](https://github.com/ljharb/call-bound/commit/1354de8679413e4ae9c523d85f76fa7a5e032d97)
diff --git a/backend/node_modules/call-bound/LICENSE b/backend/node_modules/call-bound/LICENSE
new file mode 100644
index 0000000..f82f389
--- /dev/null
+++ b/backend/node_modules/call-bound/LICENSE
@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2024 Jordan Harband
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
diff --git a/backend/node_modules/call-bound/README.md b/backend/node_modules/call-bound/README.md
new file mode 100644
index 0000000..a44e43e
--- /dev/null
+++ b/backend/node_modules/call-bound/README.md
@@ -0,0 +1,53 @@
+# call-bound <sup>[![Version Badge][npm-version-svg]][package-url]</sup>
+
+[![github actions][actions-image]][actions-url]
+[![coverage][codecov-image]][codecov-url]
+[![dependency status][deps-svg]][deps-url]
+[![dev dependency status][dev-deps-svg]][dev-deps-url]
+[![License][license-image]][license-url]
+[![Downloads][downloads-image]][downloads-url]
+
+[![npm badge][npm-badge-png]][package-url]
+
+Robust call-bound JavaScript intrinsics, using `call-bind` and `get-intrinsic`.
+
+## Getting started
+
+```sh
+npm install --save call-bound
+```
+
+## Usage/Examples
+
+```js
+const assert = require('assert');
+const callBound = require('call-bound');
+
+const slice = callBound('Array.prototype.slice');
+
+delete Function.prototype.call;
+delete Function.prototype.bind;
+delete Array.prototype.slice;
+
+assert.deepEqual(slice([1, 2, 3, 4], 1, -1), [2, 3]);
+```
+
+## Tests
+
+Clone the repo, `npm install`, and run `npm test`
+
+[package-url]: https://npmjs.org/package/call-bound
+[npm-version-svg]: https://versionbadg.es/ljharb/call-bound.svg
+[deps-svg]: https://david-dm.org/ljharb/call-bound.svg
+[deps-url]: https://david-dm.org/ljharb/call-bound
+[dev-deps-svg]: https://david-dm.org/ljharb/call-bound/dev-status.svg
+[dev-deps-url]: https://david-dm.org/ljharb/call-bound#info=devDependencies
+[npm-badge-png]: https://nodei.co/npm/call-bound.png?downloads=true&stars=true
+[license-image]: https://img.shields.io/npm/l/call-bound.svg
+[license-url]: LICENSE
+[downloads-image]: https://img.shields.io/npm/dm/call-bound.svg
+[downloads-url]: https://npm-stat.com/charts.html?package=call-bound
+[codecov-image]: https://codecov.io/gh/ljharb/call-bound/branch/main/graphs/badge.svg
+[codecov-url]: https://app.codecov.io/gh/ljharb/call-bound/
+[actions-image]: https://img.shields.io/endpoint?url=https://github-actions-badge-u3jn4tfpocch.runkit.sh/ljharb/call-bound
+[actions-url]: https://github.com/ljharb/call-bound/actions
diff --git a/backend/node_modules/call-bound/index.d.ts b/backend/node_modules/call-bound/index.d.ts
new file mode 100644
index 0000000..5562f00
--- /dev/null
+++ b/backend/node_modules/call-bound/index.d.ts
@@ -0,0 +1,94 @@
+type Intrinsic = typeof globalThis;
+
+type IntrinsicName = keyof Intrinsic | `%${keyof Intrinsic}%`;
+
+type IntrinsicPath = IntrinsicName | `${StripPercents<IntrinsicName>}.${string}` | `%${StripPercents<IntrinsicName>}.${string}%`;
+
+type AllowMissing = boolean;
+
+type StripPercents<T extends string> = T extends `%${infer U}%` ? U : T;
+
+type BindMethodPrecise<F> =
+  F extends (this: infer This, ...args: infer Args) => infer R
+  ? (obj: This, ...args: Args) => R
+  : F extends {
+    (this: infer This1, ...args: infer Args1): infer R1;
+    (this: infer This2, ...args: infer Args2): infer R2
+  }
+  ? {
+    (obj: This1, ...args: Args1): R1;
+    (obj: This2, ...args: Args2): R2
+  }
+  : never
+
+// Extract method type from a prototype
+type GetPrototypeMethod<T extends keyof typeof globalThis, M extends string> =
+  (typeof globalThis)[T] extends { prototype: any }
+  ? M extends keyof (typeof globalThis)[T]['prototype']
+  ? (typeof globalThis)[T]['prototype'][M]
+  : never
+  : never
+
+// Get static property/method
+type GetStaticMember<T extends keyof typeof globalThis, P extends string> =
+  P extends keyof (typeof globalThis)[T] ? (typeof globalThis)[T][P] : never
+
+// Type that maps string path to actual bound function or value with better precision
+type BoundIntrinsic<S extends string> =
+  S extends `${infer Obj}.prototype.${infer Method}`
+  ? Obj extends keyof typeof globalThis
+  ? BindMethodPrecise<GetPrototypeMethod<Obj, Method & string>>
+  : unknown
+  : S extends `${infer Obj}.${infer Prop}`
+  ? Obj extends keyof typeof globalThis
+  ? GetStaticMember<Obj, Prop & string>
+  : unknown
+  : unknown
+
+declare function arraySlice<T>(array: readonly T[], start?: number, end?: number): T[];
+declare function arraySlice<T>(array: ArrayLike<T>, start?: number, end?: number): T[];
+declare function arraySlice<T>(array: IArguments, start?: number, end?: number): T[];
+
+// Special cases for methods that need explicit typing
+interface SpecialCases {
+  '%Object.prototype.isPrototypeOf%': (thisArg: {}, obj: unknown) => boolean;
+  '%String.prototype.replace%': {
+    (str: string, searchValue: string | RegExp, replaceValue: string): string;
+    (str: string, searchValue: string | RegExp, replacer: (substring: string, ...args: any[]) => string): string
+  };
+  '%Object.prototype.toString%': (obj: {}) => string;
+  '%Object.prototype.hasOwnProperty%': (obj: {}, v: PropertyKey) => boolean;
+  '%Array.prototype.slice%': typeof arraySlice;
+  '%Array.prototype.map%': <T, U>(array: readonly T[], callbackfn: (value: T, index: number, array: readonly T[]) => U, thisArg?: any) => U[];
+  '%Array.prototype.filter%': <T>(array: readonly T[], predicate: (value: T, index: number, array: readonly T[]) => unknown, thisArg?: any) => T[];
+  '%Array.prototype.indexOf%': <T>(array: readonly T[], searchElement: T, fromIndex?: number) => number;
+  '%Function.prototype.apply%': <T, A extends any[], R>(fn: (...args: A) => R, thisArg: any, args: A) => R;
+  '%Function.prototype.call%': <T, A extends any[], R>(fn: (...args: A) => R, thisArg: any, ...args: A) => R;
+  '%Function.prototype.bind%': <T, A extends any[], R>(fn: (...args: A) => R, thisArg: any, ...args: A) => (...remainingArgs: A) => R;
+  '%Promise.prototype.then%': {
+    <T, R>(promise: Promise<T>, onfulfilled: (value: T) => R | PromiseLike<R>): Promise<R>;
+    <T, R>(promise: Promise<T>, onfulfilled: ((value: T) => R | PromiseLike<R>) | undefined | null, onrejected: (reason: any) => R | PromiseLike<R>): Promise<R>;
+  };
+  '%RegExp.prototype.test%': (regexp: RegExp, str: string) => boolean;
+  '%RegExp.prototype.exec%': (regexp: RegExp, str: string) => RegExpExecArray | null;
+  '%Error.prototype.toString%': (error: Error) => string;
+  '%TypeError.prototype.toString%': (error: TypeError) => string;
+  '%String.prototype.split%': (
+        obj: unknown,
+        splitter: string | RegExp | {
+            [Symbol.split](string: string, limit?: number): string[];
+        },
+        limit?: number | undefined
+    ) => string[];
+}
+
+/**
+ * Returns a bound function for a prototype method, or a value for a static property.
+ *
+ * @param name - The name of the intrinsic (e.g. 'Array.prototype.slice')
+ * @param {AllowMissing} [allowMissing] - Whether to allow missing intrinsics (default: false)
+ */
+declare function callBound<K extends keyof SpecialCases | StripPercents<keyof SpecialCases>, S extends IntrinsicPath>(name: K, allowMissing?: AllowMissing): SpecialCases[`%${StripPercents<K>}%`];
+declare function callBound<K extends keyof SpecialCases | StripPercents<keyof SpecialCases>, S extends IntrinsicPath>(name: S, allowMissing?: AllowMissing): BoundIntrinsic<S>;
+
+export = callBound;
diff --git a/backend/node_modules/call-bound/index.js b/backend/node_modules/call-bound/index.js
new file mode 100644
index 0000000..e9ade74
--- /dev/null
+++ b/backend/node_modules/call-bound/index.js
@@ -0,0 +1,19 @@
+'use strict';
+
+var GetIntrinsic = require('get-intrinsic');
+
+var callBindBasic = require('call-bind-apply-helpers');
+
+/** @type {(thisArg: string, searchString: string, position?: number) => number} */
+var $indexOf = callBindBasic([GetIntrinsic('%String.prototype.indexOf%')]);
+
+/** @type {import('.')} */
+module.exports = function callBoundIntrinsic(name, allowMissing) {
+	/* eslint no-extra-parens: 0 */
+
+	var intrinsic = /** @type {(this: unknown, ...args: unknown[]) => unknown} */ (GetIntrinsic(name, !!allowMissing));
+	if (typeof intrinsic === 'function' && $indexOf(name, '.prototype.') > -1) {
+		return callBindBasic(/** @type {const} */ ([intrinsic]));
+	}
+	return intrinsic;
+};
diff --git a/backend/node_modules/call-bound/package.json b/backend/node_modules/call-bound/package.json
new file mode 100644
index 0000000..d542db4
--- /dev/null
+++ b/backend/node_modules/call-bound/package.json
@@ -0,0 +1,99 @@
+{
+	"name": "call-bound",
+	"version": "1.0.4",
+	"description": "Robust call-bound JavaScript intrinsics, using `call-bind` and `get-intrinsic`.",
+	"main": "index.js",
+	"exports": {
+		".": "./index.js",
+		"./package.json": "./package.json"
+	},
+	"sideEffects": false,
+	"scripts": {
+		"prepack": "npmignore --auto --commentLines=auto",
+		"prepublish": "not-in-publish || npm run prepublishOnly",
+		"prepublishOnly": "safe-publish-latest",
+		"prelint": "evalmd README.md",
+		"lint": "eslint --ext=.js,.mjs .",
+		"postlint": "tsc -p . && attw -P",
+		"pretest": "npm run lint",
+		"tests-only": "nyc tape 'test/**/*.js'",
+		"test": "npm run tests-only",
+		"posttest": "npx npm@'>=10.2' audit --production",
+		"version": "auto-changelog && git add CHANGELOG.md",
+		"postversion": "auto-changelog && git add CHANGELOG.md && git commit --no-edit --amend && git tag -f \"v$(node -e \"console.log(require('./package.json').version)\")\""
+	},
+	"repository": {
+		"type": "git",
+		"url": "git+https://github.com/ljharb/call-bound.git"
+	},
+	"keywords": [
+		"javascript",
+		"ecmascript",
+		"es",
+		"js",
+		"callbind",
+		"callbound",
+		"call",
+		"bind",
+		"bound",
+		"call-bind",
+		"call-bound",
+		"function",
+		"es-abstract"
+	],
+	"author": "Jordan Harband <ljharb@gmail.com>",
+	"funding": {
+		"url": "https://github.com/sponsors/ljharb"
+	},
+	"license": "MIT",
+	"bugs": {
+		"url": "https://github.com/ljharb/call-bound/issues"
+	},
+	"homepage": "https://github.com/ljharb/call-bound#readme",
+	"dependencies": {
+		"call-bind-apply-helpers": "^1.0.2",
+		"get-intrinsic": "^1.3.0"
+	},
+	"devDependencies": {
+		"@arethetypeswrong/cli": "^0.17.4",
+		"@ljharb/eslint-config": "^21.1.1",
+		"@ljharb/tsconfig": "^0.3.0",
+		"@types/call-bind": "^1.0.5",
+		"@types/get-intrinsic": "^1.2.3",
+		"@types/tape": "^5.8.1",
+		"auto-changelog": "^2.5.0",
+		"encoding": "^0.1.13",
+		"es-value-fixtures": "^1.7.1",
+		"eslint": "=8.8.0",
+		"evalmd": "^0.0.19",
+		"for-each": "^0.3.5",
+		"gopd": "^1.2.0",
+		"has-strict-mode": "^1.1.0",
+		"in-publish": "^2.0.1",
+		"npmignore": "^0.3.1",
+		"nyc": "^10.3.2",
+		"object-inspect": "^1.13.4",
+		"safe-publish-latest": "^2.0.0",
+		"tape": "^5.9.0",
+		"typescript": "next"
+	},
+	"testling": {
+		"files": "test/index.js"
+	},
+	"auto-changelog": {
+		"output": "CHANGELOG.md",
+		"template": "keepachangelog",
+		"unreleased": false,
+		"commitLimit": false,
+		"backfillLimit": false,
+		"hideCredit": true
+	},
+	"publishConfig": {
+		"ignore": [
+			".github/workflows"
+		]
+	},
+	"engines": {
+		"node": ">= 0.4"
+	}
+}
diff --git a/backend/node_modules/call-bound/test/index.js b/backend/node_modules/call-bound/test/index.js
new file mode 100644
index 0000000..a2fc9f0
--- /dev/null
+++ b/backend/node_modules/call-bound/test/index.js
@@ -0,0 +1,61 @@
+'use strict';
+
+var test = require('tape');
+
+var callBound = require('../');
+
+/** @template {true} T @template U @typedef {T extends U ? T : never} AssertType */
+
+test('callBound', function (t) {
+	// static primitive
+	t.equal(callBound('Array.length'), Array.length, 'Array.length yields itself');
+	t.equal(callBound('%Array.length%'), Array.length, '%Array.length% yields itself');
+
+	// static non-function object
+	t.equal(callBound('Array.prototype'), Array.prototype, 'Array.prototype yields itself');
+	t.equal(callBound('%Array.prototype%'), Array.prototype, '%Array.prototype% yields itself');
+	t.equal(callBound('Array.constructor'), Array.constructor, 'Array.constructor yields itself');
+	t.equal(callBound('%Array.constructor%'), Array.constructor, '%Array.constructor% yields itself');
+
+	// static function
+	t.equal(callBound('Date.parse'), Date.parse, 'Date.parse yields itself');
+	t.equal(callBound('%Date.parse%'), Date.parse, '%Date.parse% yields itself');
+
+	// prototype primitive
+	t.equal(callBound('Error.prototype.message'), Error.prototype.message, 'Error.prototype.message yields itself');
+	t.equal(callBound('%Error.prototype.message%'), Error.prototype.message, '%Error.prototype.message% yields itself');
+
+	var x = callBound('Object.prototype.toString');
+	var y = callBound('%Object.prototype.toString%');
+
+	// prototype function
+	t.notEqual(x, Object.prototype.toString, 'Object.prototype.toString does not yield itself');
+	t.notEqual(y, Object.prototype.toString, '%Object.prototype.toString% does not yield itself');
+	t.equal(x(true), Object.prototype.toString.call(true), 'call-bound Object.prototype.toString calls into the original');
+	t.equal(y(true), Object.prototype.toString.call(true), 'call-bound %Object.prototype.toString% calls into the original');
+
+	t['throws'](
+		// @ts-expect-error
+		function () { callBound('does not exist'); },
+		SyntaxError,
+		'nonexistent intrinsic throws'
+	);
+	t['throws'](
+		// @ts-expect-error
+		function () { callBound('does not exist', true); },
+		SyntaxError,
+		'allowMissing arg still throws for unknown intrinsic'
+	);
+
+	t.test('real but absent intrinsic', { skip: typeof WeakRef !== 'undefined' }, function (st) {
+		st['throws'](
+			function () { callBound('WeakRef'); },
+			TypeError,
+			'real but absent intrinsic throws'
+		);
+		st.equal(callBound('WeakRef', true), undefined, 'allowMissing arg avoids exception');
+		st.end();
+	});
+
+	t.end();
+});
diff --git a/backend/node_modules/call-bound/tsconfig.json b/backend/node_modules/call-bound/tsconfig.json
new file mode 100644
index 0000000..8976d98
--- /dev/null
+++ b/backend/node_modules/call-bound/tsconfig.json
@@ -0,0 +1,10 @@
+{
+	"extends": "@ljharb/tsconfig",
+	"compilerOptions": {
+		"target": "ESNext",
+		"lib": ["es2024"],
+	},
+	"exclude": [
+		"coverage",
+	],
+}
diff --git a/backend/node_modules/content-disposition/HISTORY.md b/backend/node_modules/content-disposition/HISTORY.md
new file mode 100644
index 0000000..ff0b68b
--- /dev/null
+++ b/backend/node_modules/content-disposition/HISTORY.md
@@ -0,0 +1,66 @@
+1.0.0 / 2024-08-31
+==================
+
+  * drop node <18
+  * allow utf8 as alias for utf-8
+
+0.5.4 / 2021-12-10
+==================
+
+  * deps: safe-buffer@5.2.1
+
+0.5.3 / 2018-12-17
+==================
+
+  * Use `safe-buffer` for improved Buffer API
+
+0.5.2 / 2016-12-08
+==================
+
+  * Fix `parse` to accept any linear whitespace character
+
+0.5.1 / 2016-01-17
+==================
+
+  * perf: enable strict mode
+
+0.5.0 / 2014-10-11
+==================
+
+  * Add `parse` function
+
+0.4.0 / 2014-09-21
+==================
+
+  * Expand non-Unicode `filename` to the full ISO-8859-1 charset
+
+0.3.0 / 2014-09-20
+==================
+
+  * Add `fallback` option
+  * Add `type` option
+
+0.2.0 / 2014-09-19
+==================
+
+  * Reduce ambiguity of file names with hex escape in buggy browsers
+
+0.1.2 / 2014-09-19
+==================
+
+  * Fix periodic invalid Unicode filename header
+
+0.1.1 / 2014-09-19
+==================
+
+  * Fix invalid characters appearing in `filename*` parameter
+
+0.1.0 / 2014-09-18
+==================
+
+  * Make the `filename` argument optional
+
+0.0.0 / 2014-09-18
+==================
+
+  * Initial release
diff --git a/backend/node_modules/content-disposition/LICENSE b/backend/node_modules/content-disposition/LICENSE
new file mode 100644
index 0000000..84441fb
--- /dev/null
+++ b/backend/node_modules/content-disposition/LICENSE
@@ -0,0 +1,22 @@
+(The MIT License)
+
+Copyright (c) 2014-2017 Douglas Christopher Wilson
+
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of this software and associated documentation files (the
+'Software'), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sublicense, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to
+the following conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
diff --git a/backend/node_modules/content-disposition/README.md b/backend/node_modules/content-disposition/README.md
new file mode 100644
index 0000000..3a0bb05
--- /dev/null
+++ b/backend/node_modules/content-disposition/README.md
@@ -0,0 +1,142 @@
+# content-disposition
+
+[![NPM Version][npm-image]][npm-url]
+[![NPM Downloads][downloads-image]][downloads-url]
+[![Node.js Version][node-version-image]][node-version-url]
+[![Build Status][github-actions-ci-image]][github-actions-ci-url]
+[![Test Coverage][coveralls-image]][coveralls-url]
+
+Create and parse HTTP `Content-Disposition` header
+
+## Installation
+
+```sh
+$ npm install content-disposition
+```
+
+## API
+
+```js
+var contentDisposition = require('content-disposition')
+```
+
+### contentDisposition(filename, options)
+
+Create an attachment `Content-Disposition` header value using the given file name,
+if supplied. The `filename` is optional and if no file name is desired, but you
+want to specify `options`, set `filename` to `undefined`.
+
+```js
+res.setHeader('Content-Disposition', contentDisposition('∫ maths.pdf'))
+```
+
+**note** HTTP headers are of the ISO-8859-1 character set. If you are writing this
+header through a means different from `setHeader` in Node.js, you'll want to specify
+the `'binary'` encoding in Node.js.
+
+#### Options
+
+`contentDisposition` accepts these properties in the options object.
+
+##### fallback
+
+If the `filename` option is outside ISO-8859-1, then the file name is actually
+stored in a supplemental field for clients that support Unicode file names and
+a ISO-8859-1 version of the file name is automatically generated.
+
+This specifies the ISO-8859-1 file name to override the automatic generation or
+disables the generation all together, defaults to `true`.
+
+  - A string will specify the ISO-8859-1 file name to use in place of automatic
+    generation.
+  - `false` will disable including a ISO-8859-1 file name and only include the
+    Unicode version (unless the file name is already ISO-8859-1).
+  - `true` will enable automatic generation if the file name is outside ISO-8859-1.
+
+If the `filename` option is ISO-8859-1 and this option is specified and has a
+different value, then the `filename` option is encoded in the extended field
+and this set as the fallback field, even though they are both ISO-8859-1.
+
+##### type
+
+Specifies the disposition type, defaults to `"attachment"`. This can also be
+`"inline"`, or any other value (all values except inline are treated like
+`attachment`, but can convey additional information if both parties agree to
+it). The type is normalized to lower-case.
+
+### contentDisposition.parse(string)
+
+```js
+var disposition = contentDisposition.parse('attachment; filename="EURO rates.txt"; filename*=UTF-8\'\'%e2%82%ac%20rates.txt')
+```
+
+Parse a `Content-Disposition` header string. This automatically handles extended
+("Unicode") parameters by decoding them and providing them under the standard
+parameter name. This will return an object with the following properties (examples
+are shown for the string `'attachment; filename="EURO rates.txt"; filename*=UTF-8\'\'%e2%82%ac%20rates.txt'`):
+
+ - `type`: The disposition type (always lower case). Example: `'attachment'`
+
+ - `parameters`: An object of the parameters in the disposition (name of parameter
+   always lower case and extended versions replace non-extended versions). Example:
+   `{filename: "€ rates.txt"}`
+
+## Examples
+
+### Send a file for download
+
+```js
+var contentDisposition = require('content-disposition')
+var destroy = require('destroy')
+var fs = require('fs')
+var http = require('http')
+var onFinished = require('on-finished')
+
+var filePath = '/path/to/public/plans.pdf'
+
+http.createServer(function onRequest (req, res) {
+  // set headers
+  res.setHeader('Content-Type', 'application/pdf')
+  res.setHeader('Content-Disposition', contentDisposition(filePath))
+
+  // send file
+  var stream = fs.createReadStream(filePath)
+  stream.pipe(res)
+  onFinished(res, function () {
+    destroy(stream)
+  })
+})
+```
+
+## Testing
+
+```sh
+$ npm test
+```
+
+## References
+
+- [RFC 2616: Hypertext Transfer Protocol -- HTTP/1.1][rfc-2616]
+- [RFC 5987: Character Set and Language Encoding for Hypertext Transfer Protocol (HTTP) Header Field Parameters][rfc-5987]
+- [RFC 6266: Use of the Content-Disposition Header Field in the Hypertext Transfer Protocol (HTTP)][rfc-6266]
+- [Test Cases for HTTP Content-Disposition header field (RFC 6266) and the Encodings defined in RFCs 2047, 2231 and 5987][tc-2231]
+
+[rfc-2616]: https://tools.ietf.org/html/rfc2616
+[rfc-5987]: https://tools.ietf.org/html/rfc5987
+[rfc-6266]: https://tools.ietf.org/html/rfc6266
+[tc-2231]: http://greenbytes.de/tech/tc2231/
+
+## License
+
+[MIT](LICENSE)
+
+[npm-image]: https://img.shields.io/npm/v/content-disposition.svg
+[npm-url]: https://npmjs.org/package/content-disposition
+[node-version-image]: https://img.shields.io/node/v/content-disposition.svg
+[node-version-url]: https://nodejs.org/en/download
+[coveralls-image]: https://img.shields.io/coveralls/jshttp/content-disposition.svg
+[coveralls-url]: https://coveralls.io/r/jshttp/content-disposition?branch=master
+[downloads-image]: https://img.shields.io/npm/dm/content-disposition.svg
+[downloads-url]: https://npmjs.org/package/content-disposition
+[github-actions-ci-image]: https://img.shields.io/github/workflow/status/jshttp/content-disposition/ci/master?label=ci
+[github-actions-ci-url]: https://github.com/jshttp/content-disposition?query=workflow%3Aci
diff --git a/backend/node_modules/content-disposition/index.js b/backend/node_modules/content-disposition/index.js
new file mode 100644
index 0000000..44f1d51
--- /dev/null
+++ b/backend/node_modules/content-disposition/index.js
@@ -0,0 +1,459 @@
+/*!
+ * content-disposition
+ * Copyright(c) 2014-2017 Douglas Christopher Wilson
+ * MIT Licensed
+ */
+
+'use strict'
+
+/**
+ * Module exports.
+ * @public
+ */
+
+module.exports = contentDisposition
+module.exports.parse = parse
+
+/**
+ * Module dependencies.
+ * @private
+ */
+
+var basename = require('path').basename
+var Buffer = require('safe-buffer').Buffer
+
+/**
+ * RegExp to match non attr-char, *after* encodeURIComponent (i.e. not including "%")
+ * @private
+ */
+
+var ENCODE_URL_ATTR_CHAR_REGEXP = /[\x00-\x20"'()*,/:;<=>?@[\\\]{}\x7f]/g // eslint-disable-line no-control-regex
+
+/**
+ * RegExp to match percent encoding escape.
+ * @private
+ */
+
+var HEX_ESCAPE_REGEXP = /%[0-9A-Fa-f]{2}/
+var HEX_ESCAPE_REPLACE_REGEXP = /%([0-9A-Fa-f]{2})/g
+
+/**
+ * RegExp to match non-latin1 characters.
+ * @private
+ */
+
+var NON_LATIN1_REGEXP = /[^\x20-\x7e\xa0-\xff]/g
+
+/**
+ * RegExp to match quoted-pair in RFC 2616
+ *
+ * quoted-pair = "\" CHAR
+ * CHAR        = <any US-ASCII character (octets 0 - 127)>
+ * @private
+ */
+
+var QESC_REGEXP = /\\([\u0000-\u007f])/g // eslint-disable-line no-control-regex
+
+/**
+ * RegExp to match chars that must be quoted-pair in RFC 2616
+ * @private
+ */
+
+var QUOTE_REGEXP = /([\\"])/g
+
+/**
+ * RegExp for various RFC 2616 grammar
+ *
+ * parameter     = token "=" ( token | quoted-string )
+ * token         = 1*<any CHAR except CTLs or separators>
+ * separators    = "(" | ")" | "<" | ">" | "@"
+ *               | "," | ";" | ":" | "\" | <">
+ *               | "/" | "[" | "]" | "?" | "="
+ *               | "{" | "}" | SP | HT
+ * quoted-string = ( <"> *(qdtext | quoted-pair ) <"> )
+ * qdtext        = <any TEXT except <">>
+ * quoted-pair   = "\" CHAR
+ * CHAR          = <any US-ASCII character (octets 0 - 127)>
+ * TEXT          = <any OCTET except CTLs, but including LWS>
+ * LWS           = [CRLF] 1*( SP | HT )
+ * CRLF          = CR LF
+ * CR            = <US-ASCII CR, carriage return (13)>
+ * LF            = <US-ASCII LF, linefeed (10)>
+ * SP            = <US-ASCII SP, space (32)>
+ * HT            = <US-ASCII HT, horizontal-tab (9)>
+ * CTL           = <any US-ASCII control character (octets 0 - 31) and DEL (127)>
+ * OCTET         = <any 8-bit sequence of data>
+ * @private
+ */
+
+var PARAM_REGEXP = /;[\x09\x20]*([!#$%&'*+.0-9A-Z^_`a-z|~-]+)[\x09\x20]*=[\x09\x20]*("(?:[\x20!\x23-\x5b\x5d-\x7e\x80-\xff]|\\[\x20-\x7e])*"|[!#$%&'*+.0-9A-Z^_`a-z|~-]+)[\x09\x20]*/g // eslint-disable-line no-control-regex
+var TEXT_REGEXP = /^[\x20-\x7e\x80-\xff]+$/
+var TOKEN_REGEXP = /^[!#$%&'*+.0-9A-Z^_`a-z|~-]+$/
+
+/**
+ * RegExp for various RFC 5987 grammar
+ *
+ * ext-value     = charset  "'" [ language ] "'" value-chars
+ * charset       = "UTF-8" / "ISO-8859-1" / mime-charset
+ * mime-charset  = 1*mime-charsetc
+ * mime-charsetc = ALPHA / DIGIT
+ *               / "!" / "#" / "$" / "%" / "&"
+ *               / "+" / "-" / "^" / "_" / "`"
+ *               / "{" / "}" / "~"
+ * language      = ( 2*3ALPHA [ extlang ] )
+ *               / 4ALPHA
+ *               / 5*8ALPHA
+ * extlang       = *3( "-" 3ALPHA )
+ * value-chars   = *( pct-encoded / attr-char )
+ * pct-encoded   = "%" HEXDIG HEXDIG
+ * attr-char     = ALPHA / DIGIT
+ *               / "!" / "#" / "$" / "&" / "+" / "-" / "."
+ *               / "^" / "_" / "`" / "|" / "~"
+ * @private
+ */
+
+var EXT_VALUE_REGEXP = /^([A-Za-z0-9!#$%&+\-^_`{}~]+)'(?:[A-Za-z]{2,3}(?:-[A-Za-z]{3}){0,3}|[A-Za-z]{4,8}|)'((?:%[0-9A-Fa-f]{2}|[A-Za-z0-9!#$&+.^_`|~-])+)$/
+
+/**
+ * RegExp for various RFC 6266 grammar
+ *
+ * disposition-type = "inline" | "attachment" | disp-ext-type
+ * disp-ext-type    = token
+ * disposition-parm = filename-parm | disp-ext-parm
+ * filename-parm    = "filename" "=" value
+ *                  | "filename*" "=" ext-value
+ * disp-ext-parm    = token "=" value
+ *                  | ext-token "=" ext-value
+ * ext-token        = <the characters in token, followed by "*">
+ * @private
+ */
+
+var DISPOSITION_TYPE_REGEXP = /^([!#$%&'*+.0-9A-Z^_`a-z|~-]+)[\x09\x20]*(?:$|;)/ // eslint-disable-line no-control-regex
+
+/**
+ * Create an attachment Content-Disposition header.
+ *
+ * @param {string} [filename]
+ * @param {object} [options]
+ * @param {string} [options.type=attachment]
+ * @param {string|boolean} [options.fallback=true]
+ * @return {string}
+ * @public
+ */
+
+function contentDisposition (filename, options) {
+  var opts = options || {}
+
+  // get type
+  var type = opts.type || 'attachment'
+
+  // get parameters
+  var params = createparams(filename, opts.fallback)
+
+  // format into string
+  return format(new ContentDisposition(type, params))
+}
+
+/**
+ * Create parameters object from filename and fallback.
+ *
+ * @param {string} [filename]
+ * @param {string|boolean} [fallback=true]
+ * @return {object}
+ * @private
+ */
+
+function createparams (filename, fallback) {
+  if (filename === undefined) {
+    return
+  }
+
+  var params = {}
+
+  if (typeof filename !== 'string') {
+    throw new TypeError('filename must be a string')
+  }
+
+  // fallback defaults to true
+  if (fallback === undefined) {
+    fallback = true
+  }
+
+  if (typeof fallback !== 'string' && typeof fallback !== 'boolean') {
+    throw new TypeError('fallback must be a string or boolean')
+  }
+
+  if (typeof fallback === 'string' && NON_LATIN1_REGEXP.test(fallback)) {
+    throw new TypeError('fallback must be ISO-8859-1 string')
+  }
+
+  // restrict to file base name
+  var name = basename(filename)
+
+  // determine if name is suitable for quoted string
+  var isQuotedString = TEXT_REGEXP.test(name)
+
+  // generate fallback name
+  var fallbackName = typeof fallback !== 'string'
+    ? fallback && getlatin1(name)
+    : basename(fallback)
+  var hasFallback = typeof fallbackName === 'string' && fallbackName !== name
+
+  // set extended filename parameter
+  if (hasFallback || !isQuotedString || HEX_ESCAPE_REGEXP.test(name)) {
+    params['filename*'] = name
+  }
+
+  // set filename parameter
+  if (isQuotedString || hasFallback) {
+    params.filename = hasFallback
+      ? fallbackName
+      : name
+  }
+
+  return params
+}
+
+/**
+ * Format object to Content-Disposition header.
+ *
+ * @param {object} obj
+ * @param {string} obj.type
+ * @param {object} [obj.parameters]
+ * @return {string}
+ * @private
+ */
+
+function format (obj) {
+  var parameters = obj.parameters
+  var type = obj.type
+
+  if (!type || typeof type !== 'string' || !TOKEN_REGEXP.test(type)) {
+    throw new TypeError('invalid type')
+  }
+
+  // start with normalized type
+  var string = String(type).toLowerCase()
+
+  // append parameters
+  if (parameters && typeof parameters === 'object') {
+    var param
+    var params = Object.keys(parameters).sort()
+
+    for (var i = 0; i < params.length; i++) {
+      param = params[i]
+
+      var val = param.slice(-1) === '*'
+        ? ustring(parameters[param])
+        : qstring(parameters[param])
+
+      string += '; ' + param + '=' + val
+    }
+  }
+
+  return string
+}
+
+/**
+ * Decode a RFC 5987 field value (gracefully).
+ *
+ * @param {string} str
+ * @return {string}
+ * @private
+ */
+
+function decodefield (str) {
+  var match = EXT_VALUE_REGEXP.exec(str)
+
+  if (!match) {
+    throw new TypeError('invalid extended field value')
+  }
+
+  var charset = match[1].toLowerCase()
+  var encoded = match[2]
+  var value
+
+  // to binary string
+  var binary = encoded.replace(HEX_ESCAPE_REPLACE_REGEXP, pdecode)
+
+  switch (charset) {
+    case 'iso-8859-1':
+      value = getlatin1(binary)
+      break
+    case 'utf-8':
+    case 'utf8':
+      value = Buffer.from(binary, 'binary').toString('utf8')
+      break
+    default:
+      throw new TypeError('unsupported charset in extended field')
+  }
+
+  return value
+}
+
+/**
+ * Get ISO-8859-1 version of string.
+ *
+ * @param {string} val
+ * @return {string}
+ * @private
+ */
+
+function getlatin1 (val) {
+  // simple Unicode -> ISO-8859-1 transformation
+  return String(val).replace(NON_LATIN1_REGEXP, '?')
+}
+
+/**
+ * Parse Content-Disposition header string.
+ *
+ * @param {string} string
+ * @return {object}
+ * @public
+ */
+
+function parse (string) {
+  if (!string || typeof string !== 'string') {
+    throw new TypeError('argument string is required')
+  }
+
+  var match = DISPOSITION_TYPE_REGEXP.exec(string)
+
+  if (!match) {
+    throw new TypeError('invalid type format')
+  }
+
+  // normalize type
+  var index = match[0].length
+  var type = match[1].toLowerCase()
+
+  var key
+  var names = []
+  var params = {}
+  var value
+
+  // calculate index to start at
+  index = PARAM_REGEXP.lastIndex = match[0].slice(-1) === ';'
+    ? index - 1
+    : index
+
+  // match parameters
+  while ((match = PARAM_REGEXP.exec(string))) {
+    if (match.index !== index) {
+      throw new TypeError('invalid parameter format')
+    }
+
+    index += match[0].length
+    key = match[1].toLowerCase()
+    value = match[2]
+
+    if (names.indexOf(key) !== -1) {
+      throw new TypeError('invalid duplicate parameter')
+    }
+
+    names.push(key)
+
+    if (key.indexOf('*') + 1 === key.length) {
+      // decode extended value
+      key = key.slice(0, -1)
+      value = decodefield(value)
+
+      // overwrite existing value
+      params[key] = value
+      continue
+    }
+
+    if (typeof params[key] === 'string') {
+      continue
+    }
+
+    if (value[0] === '"') {
+      // remove quotes and escapes
+      value = value
+        .slice(1, -1)
+        .replace(QESC_REGEXP, '$1')
+    }
+
+    params[key] = value
+  }
+
+  if (index !== -1 && index !== string.length) {
+    throw new TypeError('invalid parameter format')
+  }
+
+  return new ContentDisposition(type, params)
+}
+
+/**
+ * Percent decode a single character.
+ *
+ * @param {string} str
+ * @param {string} hex
+ * @return {string}
+ * @private
+ */
+
+function pdecode (str, hex) {
+  return String.fromCharCode(parseInt(hex, 16))
+}
+
+/**
+ * Percent encode a single character.
+ *
+ * @param {string} char
+ * @return {string}
+ * @private
+ */
+
+function pencode (char) {
+  return '%' + String(char)
+    .charCodeAt(0)
+    .toString(16)
+    .toUpperCase()
+}
+
+/**
+ * Quote a string for HTTP.
+ *
+ * @param {string} val
+ * @return {string}
+ * @private
+ */
+
+function qstring (val) {
+  var str = String(val)
+
+  return '"' + str.replace(QUOTE_REGEXP, '\\$1') + '"'
+}
+
+/**
+ * Encode a Unicode string for HTTP (RFC 5987).
+ *
+ * @param {string} val
+ * @return {string}
+ * @private
+ */
+
+function ustring (val) {
+  var str = String(val)
+
+  // percent encode as UTF-8
+  var encoded = encodeURIComponent(str)
+    .replace(ENCODE_URL_ATTR_CHAR_REGEXP, pencode)
+
+  return 'UTF-8\'\'' + encoded
+}
+
+/**
+ * Class for parsed Content-Disposition header for v8 optimization
+ *
+ * @public
+ * @param {string} type
+ * @param {object} parameters
+ * @constructor
+ */
+
+function ContentDisposition (type, parameters) {
+  this.type = type
+  this.parameters = parameters
+}
diff --git a/backend/node_modules/content-disposition/package.json b/backend/node_modules/content-disposition/package.json
new file mode 100644
index 0000000..5cea50b
--- /dev/null
+++ b/backend/node_modules/content-disposition/package.json
@@ -0,0 +1,44 @@
+{
+  "name": "content-disposition",
+  "description": "Create and parse Content-Disposition header",
+  "version": "1.0.0",
+  "author": "Douglas Christopher Wilson <doug@somethingdoug.com>",
+  "license": "MIT",
+  "keywords": [
+    "content-disposition",
+    "http",
+    "rfc6266",
+    "res"
+  ],
+  "repository": "jshttp/content-disposition",
+  "dependencies": {
+    "safe-buffer": "5.2.1"
+  },
+  "devDependencies": {
+    "deep-equal": "1.0.1",
+    "eslint": "7.32.0",
+    "eslint-config-standard": "13.0.1",
+    "eslint-plugin-import": "2.25.3",
+    "eslint-plugin-markdown": "2.2.1",
+    "eslint-plugin-node": "11.1.0",
+    "eslint-plugin-promise": "5.2.0",
+    "eslint-plugin-standard": "4.1.0",
+    "mocha": "^9.2.2",
+    "nyc": "15.1.0"
+  },
+  "files": [
+    "LICENSE",
+    "HISTORY.md",
+    "README.md",
+    "index.js"
+  ],
+  "engines": {
+    "node": ">= 0.6"
+  },
+  "scripts": {
+    "lint": "eslint .",
+    "test": "mocha --reporter spec --bail --check-leaks test/",
+    "test-ci": "nyc --reporter=lcovonly --reporter=text npm test",
+    "test-cov": "nyc --reporter=html --reporter=text npm test"
+  }
+}
diff --git a/backend/node_modules/content-type/HISTORY.md b/backend/node_modules/content-type/HISTORY.md
new file mode 100644
index 0000000..4583671
--- /dev/null
+++ b/backend/node_modules/content-type/HISTORY.md
@@ -0,0 +1,29 @@
+1.0.5 / 2023-01-29
+==================
+
+  * perf: skip value escaping when unnecessary
+
+1.0.4 / 2017-09-11
+==================
+
+  * perf: skip parameter parsing when no parameters
+
+1.0.3 / 2017-09-10
+==================
+
+  * perf: remove argument reassignment
+
+1.0.2 / 2016-05-09
+==================
+
+  * perf: enable strict mode
+
+1.0.1 / 2015-02-13
+==================
+
+  * Improve missing `Content-Type` header error message
+
+1.0.0 / 2015-02-01
+==================
+
+  * Initial implementation, derived from `media-typer@0.3.0`
diff --git a/backend/node_modules/content-type/LICENSE b/backend/node_modules/content-type/LICENSE
new file mode 100644
index 0000000..34b1a2d
--- /dev/null
+++ b/backend/node_modules/content-type/LICENSE
@@ -0,0 +1,22 @@
+(The MIT License)
+
+Copyright (c) 2015 Douglas Christopher Wilson
+
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of this software and associated documentation files (the
+'Software'), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sublicense, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to
+the following conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
diff --git a/backend/node_modules/content-type/README.md b/backend/node_modules/content-type/README.md
new file mode 100644
index 0000000..c1a922a
--- /dev/null
+++ b/backend/node_modules/content-type/README.md
@@ -0,0 +1,94 @@
+# content-type
+
+[![NPM Version][npm-version-image]][npm-url]
+[![NPM Downloads][npm-downloads-image]][npm-url]
+[![Node.js Version][node-image]][node-url]
+[![Build Status][ci-image]][ci-url]
+[![Coverage Status][coveralls-image]][coveralls-url]
+
+Create and parse HTTP Content-Type header according to RFC 7231
+
+## Installation
+
+```sh
+$ npm install content-type
+```
+
+## API
+
+```js
+var contentType = require('content-type')
+```
+
+### contentType.parse(string)
+
+```js
+var obj = contentType.parse('image/svg+xml; charset=utf-8')
+```
+
+Parse a `Content-Type` header. This will return an object with the following
+properties (examples are shown for the string `'image/svg+xml; charset=utf-8'`):
+
+ - `type`: The media type (the type and subtype, always lower case).
+   Example: `'image/svg+xml'`
+
+ - `parameters`: An object of the parameters in the media type (name of parameter
+   always lower case). Example: `{charset: 'utf-8'}`
+
+Throws a `TypeError` if the string is missing or invalid.
+
+### contentType.parse(req)
+
+```js
+var obj = contentType.parse(req)
+```
+
+Parse the `Content-Type` header from the given `req`. Short-cut for
+`contentType.parse(req.headers['content-type'])`.
+
+Throws a `TypeError` if the `Content-Type` header is missing or invalid.
+
+### contentType.parse(res)
+
+```js
+var obj = contentType.parse(res)
+```
+
+Parse the `Content-Type` header set on the given `res`. Short-cut for
+`contentType.parse(res.getHeader('content-type'))`.
+
+Throws a `TypeError` if the `Content-Type` header is missing or invalid.
+
+### contentType.format(obj)
+
+```js
+var str = contentType.format({
+  type: 'image/svg+xml',
+  parameters: { charset: 'utf-8' }
+})
+```
+
+Format an object into a `Content-Type` header. This will return a string of the
+content type for the given object with the following properties (examples are
+shown that produce the string `'image/svg+xml; charset=utf-8'`):
+
+ - `type`: The media type (will be lower-cased). Example: `'image/svg+xml'`
+
+ - `parameters`: An object of the parameters in the media type (name of the
+   parameter will be lower-cased). Example: `{charset: 'utf-8'}`
+
+Throws a `TypeError` if the object contains an invalid type or parameter names.
+
+## License
+
+[MIT](LICENSE)
+
+[ci-image]: https://badgen.net/github/checks/jshttp/content-type/master?label=ci
+[ci-url]: https://github.com/jshttp/content-type/actions/workflows/ci.yml
+[coveralls-image]: https://badgen.net/coveralls/c/github/jshttp/content-type/master
+[coveralls-url]: https://coveralls.io/r/jshttp/content-type?branch=master
+[node-image]: https://badgen.net/npm/node/content-type
+[node-url]: https://nodejs.org/en/download
+[npm-downloads-image]: https://badgen.net/npm/dm/content-type
+[npm-url]: https://npmjs.org/package/content-type
+[npm-version-image]: https://badgen.net/npm/v/content-type
diff --git a/backend/node_modules/content-type/index.js b/backend/node_modules/content-type/index.js
new file mode 100644
index 0000000..41840e7
--- /dev/null
+++ b/backend/node_modules/content-type/index.js
@@ -0,0 +1,225 @@
+/*!
+ * content-type
+ * Copyright(c) 2015 Douglas Christopher Wilson
+ * MIT Licensed
+ */
+
+'use strict'
+
+/**
+ * RegExp to match *( ";" parameter ) in RFC 7231 sec 3.1.1.1
+ *
+ * parameter     = token "=" ( token / quoted-string )
+ * token         = 1*tchar
+ * tchar         = "!" / "#" / "$" / "%" / "&" / "'" / "*"
+ *               / "+" / "-" / "." / "^" / "_" / "`" / "|" / "~"
+ *               / DIGIT / ALPHA
+ *               ; any VCHAR, except delimiters
+ * quoted-string = DQUOTE *( qdtext / quoted-pair ) DQUOTE
+ * qdtext        = HTAB / SP / %x21 / %x23-5B / %x5D-7E / obs-text
+ * obs-text      = %x80-FF
+ * quoted-pair   = "\" ( HTAB / SP / VCHAR / obs-text )
+ */
+var PARAM_REGEXP = /; *([!#$%&'*+.^_`|~0-9A-Za-z-]+) *= *("(?:[\u000b\u0020\u0021\u0023-\u005b\u005d-\u007e\u0080-\u00ff]|\\[\u000b\u0020-\u00ff])*"|[!#$%&'*+.^_`|~0-9A-Za-z-]+) */g // eslint-disable-line no-control-regex
+var TEXT_REGEXP = /^[\u000b\u0020-\u007e\u0080-\u00ff]+$/ // eslint-disable-line no-control-regex
+var TOKEN_REGEXP = /^[!#$%&'*+.^_`|~0-9A-Za-z-]+$/
+
+/**
+ * RegExp to match quoted-pair in RFC 7230 sec 3.2.6
+ *
+ * quoted-pair = "\" ( HTAB / SP / VCHAR / obs-text )
+ * obs-text    = %x80-FF
+ */
+var QESC_REGEXP = /\\([\u000b\u0020-\u00ff])/g // eslint-disable-line no-control-regex
+
+/**
+ * RegExp to match chars that must be quoted-pair in RFC 7230 sec 3.2.6
+ */
+var QUOTE_REGEXP = /([\\"])/g
+
+/**
+ * RegExp to match type in RFC 7231 sec 3.1.1.1
+ *
+ * media-type = type "/" subtype
+ * type       = token
+ * subtype    = token
+ */
+var TYPE_REGEXP = /^[!#$%&'*+.^_`|~0-9A-Za-z-]+\/[!#$%&'*+.^_`|~0-9A-Za-z-]+$/
+
+/**
+ * Module exports.
+ * @public
+ */
+
+exports.format = format
+exports.parse = parse
+
+/**
+ * Format object to media type.
+ *
+ * @param {object} obj
+ * @return {string}
+ * @public
+ */
+
+function format (obj) {
+  if (!obj || typeof obj !== 'object') {
+    throw new TypeError('argument obj is required')
+  }
+
+  var parameters = obj.parameters
+  var type = obj.type
+
+  if (!type || !TYPE_REGEXP.test(type)) {
+    throw new TypeError('invalid type')
+  }
+
+  var string = type
+
+  // append parameters
+  if (parameters && typeof parameters === 'object') {
+    var param
+    var params = Object.keys(parameters).sort()
+
+    for (var i = 0; i < params.length; i++) {
+      param = params[i]
+
+      if (!TOKEN_REGEXP.test(param)) {
+        throw new TypeError('invalid parameter name')
+      }
+
+      string += '; ' + param + '=' + qstring(parameters[param])
+    }
+  }
+
+  return string
+}
+
+/**
+ * Parse media type to object.
+ *
+ * @param {string|object} string
+ * @return {Object}
+ * @public
+ */
+
+function parse (string) {
+  if (!string) {
+    throw new TypeError('argument string is required')
+  }
+
+  // support req/res-like objects as argument
+  var header = typeof string === 'object'
+    ? getcontenttype(string)
+    : string
+
+  if (typeof header !== 'string') {
+    throw new TypeError('argument string is required to be a string')
+  }
+
+  var index = header.indexOf(';')
+  var type = index !== -1
+    ? header.slice(0, index).trim()
+    : header.trim()
+
+  if (!TYPE_REGEXP.test(type)) {
+    throw new TypeError('invalid media type')
+  }
+
+  var obj = new ContentType(type.toLowerCase())
+
+  // parse parameters
+  if (index !== -1) {
+    var key
+    var match
+    var value
+
+    PARAM_REGEXP.lastIndex = index
+
+    while ((match = PARAM_REGEXP.exec(header))) {
+      if (match.index !== index) {
+        throw new TypeError('invalid parameter format')
+      }
+
+      index += match[0].length
+      key = match[1].toLowerCase()
+      value = match[2]
+
+      if (value.charCodeAt(0) === 0x22 /* " */) {
+        // remove quotes
+        value = value.slice(1, -1)
+
+        // remove escapes
+        if (value.indexOf('\\') !== -1) {
+          value = value.replace(QESC_REGEXP, '$1')
+        }
+      }
+
+      obj.parameters[key] = value
+    }
+
+    if (index !== header.length) {
+      throw new TypeError('invalid parameter format')
+    }
+  }
+
+  return obj
+}
+
+/**
+ * Get content-type from req/res objects.
+ *
+ * @param {object}
+ * @return {Object}
+ * @private
+ */
+
+function getcontenttype (obj) {
+  var header
+
+  if (typeof obj.getHeader === 'function') {
+    // res-like
+    header = obj.getHeader('content-type')
+  } else if (typeof obj.headers === 'object') {
+    // req-like
+    header = obj.headers && obj.headers['content-type']
+  }
+
+  if (typeof header !== 'string') {
+    throw new TypeError('content-type header is missing from object')
+  }
+
+  return header
+}
+
+/**
+ * Quote a string if necessary.
+ *
+ * @param {string} val
+ * @return {string}
+ * @private
+ */
+
+function qstring (val) {
+  var str = String(val)
+
+  // no need to quote tokens
+  if (TOKEN_REGEXP.test(str)) {
+    return str
+  }
+
+  if (str.length > 0 && !TEXT_REGEXP.test(str)) {
+    throw new TypeError('invalid parameter value')
+  }
+
+  return '"' + str.replace(QUOTE_REGEXP, '\\$1') + '"'
+}
+
+/**
+ * Class to represent a content type.
+ * @private
+ */
+function ContentType (type) {
+  this.parameters = Object.create(null)
+  this.type = type
+}
diff --git a/backend/node_modules/content-type/package.json b/backend/node_modules/content-type/package.json
new file mode 100644
index 0000000..9db19f6
--- /dev/null
+++ b/backend/node_modules/content-type/package.json
@@ -0,0 +1,42 @@
+{
+  "name": "content-type",
+  "description": "Create and parse HTTP Content-Type header",
+  "version": "1.0.5",
+  "author": "Douglas Christopher Wilson <doug@somethingdoug.com>",
+  "license": "MIT",
+  "keywords": [
+    "content-type",
+    "http",
+    "req",
+    "res",
+    "rfc7231"
+  ],
+  "repository": "jshttp/content-type",
+  "devDependencies": {
+    "deep-equal": "1.0.1",
+    "eslint": "8.32.0",
+    "eslint-config-standard": "15.0.1",
+    "eslint-plugin-import": "2.27.5",
+    "eslint-plugin-node": "11.1.0",
+    "eslint-plugin-promise": "6.1.1",
+    "eslint-plugin-standard": "4.1.0",
+    "mocha": "10.2.0",
+    "nyc": "15.1.0"
+  },
+  "files": [
+    "LICENSE",
+    "HISTORY.md",
+    "README.md",
+    "index.js"
+  ],
+  "engines": {
+    "node": ">= 0.6"
+  },
+  "scripts": {
+    "lint": "eslint .",
+    "test": "mocha --reporter spec --check-leaks --bail test/",
+    "test-ci": "nyc --reporter=lcovonly --reporter=text npm test",
+    "test-cov": "nyc --reporter=html --reporter=text npm test",
+    "version": "node scripts/version-history.js && git add HISTORY.md"
+  }
+}
diff --git a/backend/node_modules/cookie-signature/History.md b/backend/node_modules/cookie-signature/History.md
new file mode 100644
index 0000000..479211a
--- /dev/null
+++ b/backend/node_modules/cookie-signature/History.md
@@ -0,0 +1,70 @@
+1.2.2 / 2024-10-29
+==================
+
+* various metadata/documentation tweaks (incl. #51)
+
+
+1.2.1 / 2023-02-27
+==================
+
+* update annotations for allowed secret key types (#44, thanks @jyasskin!)
+
+
+1.2.0 / 2022-02-17
+==================
+
+* allow buffer and other node-supported types as key (#33)
+* be pickier about extra content after signed portion (#40)
+* some internal code clarity/cleanup improvements (#26)
+
+
+1.1.0 / 2018-01-18
+==================
+
+* switch to built-in `crypto.timingSafeEqual` for validation instead of previous double-hash method (thank you @jodevsa!)
+
+
+1.0.7 / 2023-04-12
+==================
+
+Later release for older node.js versions. See the [v1.0.x branch notes](https://github.com/tj/node-cookie-signature/blob/v1.0.x/History.md#107--2023-04-12).
+
+
+1.0.6 / 2015-02-03
+==================
+
+* use `npm test` instead of `make test` to run tests
+* clearer assertion messages when checking input
+
+
+1.0.5 / 2014-09-05
+==================
+
+* add license to package.json
+
+1.0.4 / 2014-06-25
+==================
+
+ * corrected avoidance of timing attacks (thanks @tenbits!)
+
+1.0.3 / 2014-01-28
+==================
+
+ * [incorrect] fix for timing attacks
+
+1.0.2 / 2014-01-28
+==================
+
+ * fix missing repository warning
+ * fix typo in test
+
+1.0.1 / 2013-04-15
+==================
+
+  * Revert "Changed underlying HMAC algo. to sha512."
+  * Revert "Fix for timing attacks on MAC verification."
+
+0.0.1 / 2010-01-03
+==================
+
+  * Initial release
diff --git a/backend/node_modules/cookie-signature/LICENSE b/backend/node_modules/cookie-signature/LICENSE
new file mode 100644
index 0000000..a2671bf
--- /dev/null
+++ b/backend/node_modules/cookie-signature/LICENSE
@@ -0,0 +1,22 @@
+(The MIT License)
+
+Copyright (c) 2012–2024 LearnBoost <tj@learnboost.com> and other contributors;
+
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of this software and associated documentation files (the
+'Software'), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sublicense, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to
+the following conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
diff --git a/backend/node_modules/cookie-signature/Readme.md b/backend/node_modules/cookie-signature/Readme.md
new file mode 100644
index 0000000..369af15
--- /dev/null
+++ b/backend/node_modules/cookie-signature/Readme.md
@@ -0,0 +1,23 @@
+
+# cookie-signature
+
+  Sign and unsign cookies.
+
+## Example
+
+```js
+var cookie = require('cookie-signature');
+
+var val = cookie.sign('hello', 'tobiiscool');
+val.should.equal('hello.DGDUkGlIkCzPz+C0B064FNgHdEjox7ch8tOBGslZ5QI');
+
+var val = cookie.sign('hello', 'tobiiscool');
+cookie.unsign(val, 'tobiiscool').should.equal('hello');
+cookie.unsign(val, 'luna').should.be.false;
+```
+
+## License
+
+MIT.
+
+See LICENSE file for details.
diff --git a/backend/node_modules/cookie-signature/index.js b/backend/node_modules/cookie-signature/index.js
new file mode 100644
index 0000000..3fbbddb
--- /dev/null
+++ b/backend/node_modules/cookie-signature/index.js
@@ -0,0 +1,47 @@
+/**
+ * Module dependencies.
+ */
+
+var crypto = require('crypto');
+
+/**
+ * Sign the given `val` with `secret`.
+ *
+ * @param {String} val
+ * @param {String|NodeJS.ArrayBufferView|crypto.KeyObject} secret
+ * @return {String}
+ * @api private
+ */
+
+exports.sign = function(val, secret){
+  if ('string' != typeof val) throw new TypeError("Cookie value must be provided as a string.");
+  if (null == secret) throw new TypeError("Secret key must be provided.");
+  return val + '.' + crypto
+    .createHmac('sha256', secret)
+    .update(val)
+    .digest('base64')
+    .replace(/\=+$/, '');
+};
+
+/**
+ * Unsign and decode the given `input` with `secret`,
+ * returning `false` if the signature is invalid.
+ *
+ * @param {String} input
+ * @param {String|NodeJS.ArrayBufferView|crypto.KeyObject} secret
+ * @return {String|Boolean}
+ * @api private
+ */
+
+exports.unsign = function(input, secret){
+  if ('string' != typeof input) throw new TypeError("Signed cookie string must be provided.");
+  if (null == secret) throw new TypeError("Secret key must be provided.");
+  var tentativeValue = input.slice(0, input.lastIndexOf('.')),
+      expectedInput = exports.sign(tentativeValue, secret),
+      expectedBuffer = Buffer.from(expectedInput),
+      inputBuffer = Buffer.from(input);
+  return (
+    expectedBuffer.length === inputBuffer.length &&
+    crypto.timingSafeEqual(expectedBuffer, inputBuffer)
+   ) ? tentativeValue : false;
+};
diff --git a/backend/node_modules/cookie-signature/package.json b/backend/node_modules/cookie-signature/package.json
new file mode 100644
index 0000000..a160040
--- /dev/null
+++ b/backend/node_modules/cookie-signature/package.json
@@ -0,0 +1,24 @@
+{
+  "name": "cookie-signature",
+  "version": "1.2.2",
+  "main": "index.js",
+  "description": "Sign and unsign cookies",
+  "keywords": ["cookie", "sign", "unsign"],
+  "author": "TJ Holowaychuk <tj@learnboost.com>",
+  "license": "MIT",
+  "repository": {
+    "type": "git",
+    "url": "https://github.com/visionmedia/node-cookie-signature.git"
+  },
+  "dependencies": {},
+  "engines": {
+    "node": ">=6.6.0"
+  },
+  "devDependencies": {
+    "mocha": "*",
+    "should": "*"
+  },
+  "scripts": {
+    "test": "mocha --require should --reporter spec"
+  }
+}
diff --git a/backend/node_modules/cookie/LICENSE b/backend/node_modules/cookie/LICENSE
new file mode 100644
index 0000000..058b6b4
--- /dev/null
+++ b/backend/node_modules/cookie/LICENSE
@@ -0,0 +1,24 @@
+(The MIT License)
+
+Copyright (c) 2012-2014 Roman Shtylman <shtylman@gmail.com>
+Copyright (c) 2015 Douglas Christopher Wilson <doug@somethingdoug.com>
+
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of this software and associated documentation files (the
+'Software'), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sublicense, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to
+the following conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+
diff --git a/backend/node_modules/cookie/README.md b/backend/node_modules/cookie/README.md
new file mode 100644
index 0000000..71fdac1
--- /dev/null
+++ b/backend/node_modules/cookie/README.md
@@ -0,0 +1,317 @@
+# cookie
+
+[![NPM Version][npm-version-image]][npm-url]
+[![NPM Downloads][npm-downloads-image]][npm-url]
+[![Node.js Version][node-image]][node-url]
+[![Build Status][ci-image]][ci-url]
+[![Coverage Status][coveralls-image]][coveralls-url]
+
+Basic HTTP cookie parser and serializer for HTTP servers.
+
+## Installation
+
+This is a [Node.js](https://nodejs.org/en/) module available through the
+[npm registry](https://www.npmjs.com/). Installation is done using the
+[`npm install` command](https://docs.npmjs.com/getting-started/installing-npm-packages-locally):
+
+```sh
+$ npm install cookie
+```
+
+## API
+
+```js
+var cookie = require('cookie');
+```
+
+### cookie.parse(str, options)
+
+Parse an HTTP `Cookie` header string and returning an object of all cookie name-value pairs.
+The `str` argument is the string representing a `Cookie` header value and `options` is an
+optional object containing additional parsing options.
+
+```js
+var cookies = cookie.parse('foo=bar; equation=E%3Dmc%5E2');
+// { foo: 'bar', equation: 'E=mc^2' }
+```
+
+#### Options
+
+`cookie.parse` accepts these properties in the options object.
+
+##### decode
+
+Specifies a function that will be used to decode a cookie's value. Since the value of a cookie
+has a limited character set (and must be a simple string), this function can be used to decode
+a previously-encoded cookie value into a JavaScript string or other object.
+
+The default function is the global `decodeURIComponent`, which will decode any URL-encoded
+sequences into their byte representations.
+
+**note** if an error is thrown from this function, the original, non-decoded cookie value will
+be returned as the cookie's value.
+
+### cookie.serialize(name, value, options)
+
+Serialize a cookie name-value pair into a `Set-Cookie` header string. The `name` argument is the
+name for the cookie, the `value` argument is the value to set the cookie to, and the `options`
+argument is an optional object containing additional serialization options.
+
+```js
+var setCookie = cookie.serialize('foo', 'bar');
+// foo=bar
+```
+
+#### Options
+
+`cookie.serialize` accepts these properties in the options object.
+
+##### domain
+
+Specifies the value for the [`Domain` `Set-Cookie` attribute][rfc-6265-5.2.3]. By default, no
+domain is set, and most clients will consider the cookie to apply to only the current domain.
+
+##### encode
+
+Specifies a function that will be used to encode a cookie's value. Since value of a cookie
+has a limited character set (and must be a simple string), this function can be used to encode
+a value into a string suited for a cookie's value.
+
+The default function is the global `encodeURIComponent`, which will encode a JavaScript string
+into UTF-8 byte sequences and then URL-encode any that fall outside of the cookie range.
+
+##### expires
+
+Specifies the `Date` object to be the value for the [`Expires` `Set-Cookie` attribute][rfc-6265-5.2.1].
+By default, no expiration is set, and most clients will consider this a "non-persistent cookie" and
+will delete it on a condition like exiting a web browser application.
+
+**note** the [cookie storage model specification][rfc-6265-5.3] states that if both `expires` and
+`maxAge` are set, then `maxAge` takes precedence, but it is possible not all clients by obey this,
+so if both are set, they should point to the same date and time.
+
+##### httpOnly
+
+Specifies the `boolean` value for the [`HttpOnly` `Set-Cookie` attribute][rfc-6265-5.2.6]. When truthy,
+the `HttpOnly` attribute is set, otherwise it is not. By default, the `HttpOnly` attribute is not set.
+
+**note** be careful when setting this to `true`, as compliant clients will not allow client-side
+JavaScript to see the cookie in `document.cookie`.
+
+##### maxAge
+
+Specifies the `number` (in seconds) to be the value for the [`Max-Age` `Set-Cookie` attribute][rfc-6265-5.2.2].
+The given number will be converted to an integer by rounding down. By default, no maximum age is set.
+
+**note** the [cookie storage model specification][rfc-6265-5.3] states that if both `expires` and
+`maxAge` are set, then `maxAge` takes precedence, but it is possible not all clients by obey this,
+so if both are set, they should point to the same date and time.
+
+##### partitioned
+
+Specifies the `boolean` value for the [`Partitioned` `Set-Cookie`](rfc-cutler-httpbis-partitioned-cookies)
+attribute. When truthy, the `Partitioned` attribute is set, otherwise it is not. By default, the
+`Partitioned` attribute is not set.
+
+**note** This is an attribute that has not yet been fully standardized, and may change in the future.
+This also means many clients may ignore this attribute until they understand it.
+
+More information about can be found in [the proposal](https://github.com/privacycg/CHIPS).
+
+##### path
+
+Specifies the value for the [`Path` `Set-Cookie` attribute][rfc-6265-5.2.4]. By default, the path
+is considered the ["default path"][rfc-6265-5.1.4].
+
+##### priority
+
+Specifies the `string` to be the value for the [`Priority` `Set-Cookie` attribute][rfc-west-cookie-priority-00-4.1].
+
+  - `'low'` will set the `Priority` attribute to `Low`.
+  - `'medium'` will set the `Priority` attribute to `Medium`, the default priority when not set.
+  - `'high'` will set the `Priority` attribute to `High`.
+
+More information about the different priority levels can be found in
+[the specification][rfc-west-cookie-priority-00-4.1].
+
+**note** This is an attribute that has not yet been fully standardized, and may change in the future.
+This also means many clients may ignore this attribute until they understand it.
+
+##### sameSite
+
+Specifies the `boolean` or `string` to be the value for the [`SameSite` `Set-Cookie` attribute][rfc-6265bis-09-5.4.7].
+
+  - `true` will set the `SameSite` attribute to `Strict` for strict same site enforcement.
+  - `false` will not set the `SameSite` attribute.
+  - `'lax'` will set the `SameSite` attribute to `Lax` for lax same site enforcement.
+  - `'none'` will set the `SameSite` attribute to `None` for an explicit cross-site cookie.
+  - `'strict'` will set the `SameSite` attribute to `Strict` for strict same site enforcement.
+
+More information about the different enforcement levels can be found in
+[the specification][rfc-6265bis-09-5.4.7].
+
+**note** This is an attribute that has not yet been fully standardized, and may change in the future.
+This also means many clients may ignore this attribute until they understand it.
+
+##### secure
+
+Specifies the `boolean` value for the [`Secure` `Set-Cookie` attribute][rfc-6265-5.2.5]. When truthy,
+the `Secure` attribute is set, otherwise it is not. By default, the `Secure` attribute is not set.
+
+**note** be careful when setting this to `true`, as compliant clients will not send the cookie back to
+the server in the future if the browser does not have an HTTPS connection.
+
+## Example
+
+The following example uses this module in conjunction with the Node.js core HTTP server
+to prompt a user for their name and display it back on future visits.
+
+```js
+var cookie = require('cookie');
+var escapeHtml = require('escape-html');
+var http = require('http');
+var url = require('url');
+
+function onRequest(req, res) {
+  // Parse the query string
+  var query = url.parse(req.url, true, true).query;
+
+  if (query && query.name) {
+    // Set a new cookie with the name
+    res.setHeader('Set-Cookie', cookie.serialize('name', String(query.name), {
+      httpOnly: true,
+      maxAge: 60 * 60 * 24 * 7 // 1 week
+    }));
+
+    // Redirect back after setting cookie
+    res.statusCode = 302;
+    res.setHeader('Location', req.headers.referer || '/');
+    res.end();
+    return;
+  }
+
+  // Parse the cookies on the request
+  var cookies = cookie.parse(req.headers.cookie || '');
+
+  // Get the visitor name set in the cookie
+  var name = cookies.name;
+
+  res.setHeader('Content-Type', 'text/html; charset=UTF-8');
+
+  if (name) {
+    res.write('<p>Welcome back, <b>' + escapeHtml(name) + '</b>!</p>');
+  } else {
+    res.write('<p>Hello, new visitor!</p>');
+  }
+
+  res.write('<form method="GET">');
+  res.write('<input placeholder="enter your name" name="name"> <input type="submit" value="Set Name">');
+  res.end('</form>');
+}
+
+http.createServer(onRequest).listen(3000);
+```
+
+## Testing
+
+```sh
+$ npm test
+```
+
+## Benchmark
+
+```
+$ npm run bench
+
+> cookie@0.5.0 bench
+> node benchmark/index.js
+
+  node@18.18.2
+  acorn@8.10.0
+  ada@2.6.0
+  ares@1.19.1
+  brotli@1.0.9
+  cldr@43.1
+  icu@73.2
+  llhttp@6.0.11
+  modules@108
+  napi@9
+  nghttp2@1.57.0
+  nghttp3@0.7.0
+  ngtcp2@0.8.1
+  openssl@3.0.10+quic
+  simdutf@3.2.14
+  tz@2023c
+  undici@5.26.3
+  unicode@15.0
+  uv@1.44.2
+  uvwasi@0.0.18
+  v8@10.2.154.26-node.26
+  zlib@1.2.13.1-motley
+
+> node benchmark/parse-top.js
+
+  cookie.parse - top sites
+
+  14 tests completed.
+
+  parse accounts.google.com x 2,588,913 ops/sec ±0.74% (186 runs sampled)
+  parse apple.com           x 2,370,002 ops/sec ±0.69% (186 runs sampled)
+  parse cloudflare.com      x 2,213,102 ops/sec ±0.88% (188 runs sampled)
+  parse docs.google.com     x 2,194,157 ops/sec ±1.03% (184 runs sampled)
+  parse drive.google.com    x 2,265,084 ops/sec ±0.79% (187 runs sampled)
+  parse en.wikipedia.org    x   457,099 ops/sec ±0.81% (186 runs sampled)
+  parse linkedin.com        x   504,407 ops/sec ±0.89% (186 runs sampled)
+  parse maps.google.com     x 1,230,959 ops/sec ±0.98% (186 runs sampled)
+  parse microsoft.com       x   926,294 ops/sec ±0.88% (184 runs sampled)
+  parse play.google.com     x 2,311,338 ops/sec ±0.83% (185 runs sampled)
+  parse support.google.com  x 1,508,850 ops/sec ±0.86% (186 runs sampled)
+  parse www.google.com      x 1,022,582 ops/sec ±1.32% (182 runs sampled)
+  parse youtu.be            x   332,136 ops/sec ±1.02% (185 runs sampled)
+  parse youtube.com         x   323,833 ops/sec ±0.77% (183 runs sampled)
+
+> node benchmark/parse.js
+
+  cookie.parse - generic
+
+  6 tests completed.
+
+  simple      x 3,214,032 ops/sec ±1.61% (183 runs sampled)
+  decode      x   587,237 ops/sec ±1.16% (187 runs sampled)
+  unquote     x 2,954,618 ops/sec ±1.35% (183 runs sampled)
+  duplicates  x   857,008 ops/sec ±0.89% (187 runs sampled)
+  10 cookies  x   292,133 ops/sec ±0.89% (187 runs sampled)
+  100 cookies x    22,610 ops/sec ±0.68% (187 runs sampled)
+```
+
+## References
+
+- [RFC 6265: HTTP State Management Mechanism][rfc-6265]
+- [Same-site Cookies][rfc-6265bis-09-5.4.7]
+
+[rfc-cutler-httpbis-partitioned-cookies]: https://tools.ietf.org/html/draft-cutler-httpbis-partitioned-cookies/
+[rfc-west-cookie-priority-00-4.1]: https://tools.ietf.org/html/draft-west-cookie-priority-00#section-4.1
+[rfc-6265bis-09-5.4.7]: https://tools.ietf.org/html/draft-ietf-httpbis-rfc6265bis-09#section-5.4.7
+[rfc-6265]: https://tools.ietf.org/html/rfc6265
+[rfc-6265-5.1.4]: https://tools.ietf.org/html/rfc6265#section-5.1.4
+[rfc-6265-5.2.1]: https://tools.ietf.org/html/rfc6265#section-5.2.1
+[rfc-6265-5.2.2]: https://tools.ietf.org/html/rfc6265#section-5.2.2
+[rfc-6265-5.2.3]: https://tools.ietf.org/html/rfc6265#section-5.2.3
+[rfc-6265-5.2.4]: https://tools.ietf.org/html/rfc6265#section-5.2.4
+[rfc-6265-5.2.5]: https://tools.ietf.org/html/rfc6265#section-5.2.5
+[rfc-6265-5.2.6]: https://tools.ietf.org/html/rfc6265#section-5.2.6
+[rfc-6265-5.3]: https://tools.ietf.org/html/rfc6265#section-5.3
+
+## License
+
+[MIT](LICENSE)
+
+[ci-image]: https://badgen.net/github/checks/jshttp/cookie/master?label=ci
+[ci-url]: https://github.com/jshttp/cookie/actions/workflows/ci.yml
+[coveralls-image]: https://badgen.net/coveralls/c/github/jshttp/cookie/master
+[coveralls-url]: https://coveralls.io/r/jshttp/cookie?branch=master
+[node-image]: https://badgen.net/npm/node/cookie
+[node-url]: https://nodejs.org/en/download
+[npm-downloads-image]: https://badgen.net/npm/dm/cookie
+[npm-url]: https://npmjs.org/package/cookie
+[npm-version-image]: https://badgen.net/npm/v/cookie
diff --git a/backend/node_modules/cookie/SECURITY.md b/backend/node_modules/cookie/SECURITY.md
new file mode 100644
index 0000000..fd4a6c5
--- /dev/null
+++ b/backend/node_modules/cookie/SECURITY.md
@@ -0,0 +1,25 @@
+# Security Policies and Procedures
+
+## Reporting a Bug
+
+The `cookie` team and community take all security bugs seriously. Thank
+you for improving the security of the project. We appreciate your efforts and
+responsible disclosure and will make every effort to acknowledge your
+contributions.
+
+Report security bugs by emailing the current owner(s) of `cookie`. This
+information can be found in the npm registry using the command
+`npm owner ls cookie`.
+If unsure or unable to get the information from the above, open an issue
+in the [project issue tracker](https://github.com/jshttp/cookie/issues)
+asking for the current contact information.
+
+To ensure the timely response to your report, please ensure that the entirety
+of the report is contained within the email body and not solely behind a web
+link or an attachment.
+
+At least one owner will acknowledge your email within 48 hours, and will send a
+more detailed response within 48 hours indicating the next steps in handling
+your report. After the initial reply to your report, the owners will
+endeavor to keep you informed of the progress towards a fix and full
+announcement, and may ask for additional information or guidance.
diff --git a/backend/node_modules/cookie/index.js b/backend/node_modules/cookie/index.js
new file mode 100644
index 0000000..acd5acd
--- /dev/null
+++ b/backend/node_modules/cookie/index.js
@@ -0,0 +1,335 @@
+/*!
+ * cookie
+ * Copyright(c) 2012-2014 Roman Shtylman
+ * Copyright(c) 2015 Douglas Christopher Wilson
+ * MIT Licensed
+ */
+
+'use strict';
+
+/**
+ * Module exports.
+ * @public
+ */
+
+exports.parse = parse;
+exports.serialize = serialize;
+
+/**
+ * Module variables.
+ * @private
+ */
+
+var __toString = Object.prototype.toString
+var __hasOwnProperty = Object.prototype.hasOwnProperty
+
+/**
+ * RegExp to match cookie-name in RFC 6265 sec 4.1.1
+ * This refers out to the obsoleted definition of token in RFC 2616 sec 2.2
+ * which has been replaced by the token definition in RFC 7230 appendix B.
+ *
+ * cookie-name       = token
+ * token             = 1*tchar
+ * tchar             = "!" / "#" / "$" / "%" / "&" / "'" /
+ *                     "*" / "+" / "-" / "." / "^" / "_" /
+ *                     "`" / "|" / "~" / DIGIT / ALPHA
+ */
+
+var cookieNameRegExp = /^[!#$%&'*+\-.^_`|~0-9A-Za-z]+$/;
+
+/**
+ * RegExp to match cookie-value in RFC 6265 sec 4.1.1
+ *
+ * cookie-value      = *cookie-octet / ( DQUOTE *cookie-octet DQUOTE )
+ * cookie-octet      = %x21 / %x23-2B / %x2D-3A / %x3C-5B / %x5D-7E
+ *                     ; US-ASCII characters excluding CTLs,
+ *                     ; whitespace DQUOTE, comma, semicolon,
+ *                     ; and backslash
+ */
+
+var cookieValueRegExp = /^("?)[\u0021\u0023-\u002B\u002D-\u003A\u003C-\u005B\u005D-\u007E]*\1$/;
+
+/**
+ * RegExp to match domain-value in RFC 6265 sec 4.1.1
+ *
+ * domain-value      = <subdomain>
+ *                     ; defined in [RFC1034], Section 3.5, as
+ *                     ; enhanced by [RFC1123], Section 2.1
+ * <subdomain>       = <label> | <subdomain> "." <label>
+ * <label>           = <let-dig> [ [ <ldh-str> ] <let-dig> ]
+ *                     Labels must be 63 characters or less.
+ *                     'let-dig' not 'letter' in the first char, per RFC1123
+ * <ldh-str>         = <let-dig-hyp> | <let-dig-hyp> <ldh-str>
+ * <let-dig-hyp>     = <let-dig> | "-"
+ * <let-dig>         = <letter> | <digit>
+ * <letter>          = any one of the 52 alphabetic characters A through Z in
+ *                     upper case and a through z in lower case
+ * <digit>           = any one of the ten digits 0 through 9
+ *
+ * Keep support for leading dot: https://github.com/jshttp/cookie/issues/173
+ *
+ * > (Note that a leading %x2E ("."), if present, is ignored even though that
+ * character is not permitted, but a trailing %x2E ("."), if present, will
+ * cause the user agent to ignore the attribute.)
+ */
+
+var domainValueRegExp = /^([.]?[a-z0-9]([a-z0-9-]{0,61}[a-z0-9])?)([.][a-z0-9]([a-z0-9-]{0,61}[a-z0-9])?)*$/i;
+
+/**
+ * RegExp to match path-value in RFC 6265 sec 4.1.1
+ *
+ * path-value        = <any CHAR except CTLs or ";">
+ * CHAR              = %x01-7F
+ *                     ; defined in RFC 5234 appendix B.1
+ */
+
+var pathValueRegExp = /^[\u0020-\u003A\u003D-\u007E]*$/;
+
+/**
+ * Parse a cookie header.
+ *
+ * Parse the given cookie header string into an object
+ * The object has the various cookies as keys(names) => values
+ *
+ * @param {string} str
+ * @param {object} [opt]
+ * @return {object}
+ * @public
+ */
+
+function parse(str, opt) {
+  if (typeof str !== 'string') {
+    throw new TypeError('argument str must be a string');
+  }
+
+  var obj = {};
+  var len = str.length;
+  // RFC 6265 sec 4.1.1, RFC 2616 2.2 defines a cookie name consists of one char minimum, plus '='.
+  if (len < 2) return obj;
+
+  var dec = (opt && opt.decode) || decode;
+  var index = 0;
+  var eqIdx = 0;
+  var endIdx = 0;
+
+  do {
+    eqIdx = str.indexOf('=', index);
+    if (eqIdx === -1) break; // No more cookie pairs.
+
+    endIdx = str.indexOf(';', index);
+
+    if (endIdx === -1) {
+      endIdx = len;
+    } else if (eqIdx > endIdx) {
+      // backtrack on prior semicolon
+      index = str.lastIndexOf(';', eqIdx - 1) + 1;
+      continue;
+    }
+
+    var keyStartIdx = startIndex(str, index, eqIdx);
+    var keyEndIdx = endIndex(str, eqIdx, keyStartIdx);
+    var key = str.slice(keyStartIdx, keyEndIdx);
+
+    // only assign once
+    if (!__hasOwnProperty.call(obj, key)) {
+      var valStartIdx = startIndex(str, eqIdx + 1, endIdx);
+      var valEndIdx = endIndex(str, endIdx, valStartIdx);
+
+      if (str.charCodeAt(valStartIdx) === 0x22 /* " */ && str.charCodeAt(valEndIdx - 1) === 0x22 /* " */) {
+        valStartIdx++;
+        valEndIdx--;
+      }
+
+      var val = str.slice(valStartIdx, valEndIdx);
+      obj[key] = tryDecode(val, dec);
+    }
+
+    index = endIdx + 1
+  } while (index < len);
+
+  return obj;
+}
+
+function startIndex(str, index, max) {
+  do {
+    var code = str.charCodeAt(index);
+    if (code !== 0x20 /*   */ && code !== 0x09 /* \t */) return index;
+  } while (++index < max);
+  return max;
+}
+
+function endIndex(str, index, min) {
+  while (index > min) {
+    var code = str.charCodeAt(--index);
+    if (code !== 0x20 /*   */ && code !== 0x09 /* \t */) return index + 1;
+  }
+  return min;
+}
+
+/**
+ * Serialize data into a cookie header.
+ *
+ * Serialize a name value pair into a cookie string suitable for
+ * http headers. An optional options object specifies cookie parameters.
+ *
+ * serialize('foo', 'bar', { httpOnly: true })
+ *   => "foo=bar; httpOnly"
+ *
+ * @param {string} name
+ * @param {string} val
+ * @param {object} [opt]
+ * @return {string}
+ * @public
+ */
+
+function serialize(name, val, opt) {
+  var enc = (opt && opt.encode) || encodeURIComponent;
+
+  if (typeof enc !== 'function') {
+    throw new TypeError('option encode is invalid');
+  }
+
+  if (!cookieNameRegExp.test(name)) {
+    throw new TypeError('argument name is invalid');
+  }
+
+  var value = enc(val);
+
+  if (!cookieValueRegExp.test(value)) {
+    throw new TypeError('argument val is invalid');
+  }
+
+  var str = name + '=' + value;
+  if (!opt) return str;
+
+  if (null != opt.maxAge) {
+    var maxAge = Math.floor(opt.maxAge);
+
+    if (!isFinite(maxAge)) {
+      throw new TypeError('option maxAge is invalid')
+    }
+
+    str += '; Max-Age=' + maxAge;
+  }
+
+  if (opt.domain) {
+    if (!domainValueRegExp.test(opt.domain)) {
+      throw new TypeError('option domain is invalid');
+    }
+
+    str += '; Domain=' + opt.domain;
+  }
+
+  if (opt.path) {
+    if (!pathValueRegExp.test(opt.path)) {
+      throw new TypeError('option path is invalid');
+    }
+
+    str += '; Path=' + opt.path;
+  }
+
+  if (opt.expires) {
+    var expires = opt.expires
+
+    if (!isDate(expires) || isNaN(expires.valueOf())) {
+      throw new TypeError('option expires is invalid');
+    }
+
+    str += '; Expires=' + expires.toUTCString()
+  }
+
+  if (opt.httpOnly) {
+    str += '; HttpOnly';
+  }
+
+  if (opt.secure) {
+    str += '; Secure';
+  }
+
+  if (opt.partitioned) {
+    str += '; Partitioned'
+  }
+
+  if (opt.priority) {
+    var priority = typeof opt.priority === 'string'
+      ? opt.priority.toLowerCase() : opt.priority;
+
+    switch (priority) {
+      case 'low':
+        str += '; Priority=Low'
+        break
+      case 'medium':
+        str += '; Priority=Medium'
+        break
+      case 'high':
+        str += '; Priority=High'
+        break
+      default:
+        throw new TypeError('option priority is invalid')
+    }
+  }
+
+  if (opt.sameSite) {
+    var sameSite = typeof opt.sameSite === 'string'
+      ? opt.sameSite.toLowerCase() : opt.sameSite;
+
+    switch (sameSite) {
+      case true:
+        str += '; SameSite=Strict';
+        break;
+      case 'lax':
+        str += '; SameSite=Lax';
+        break;
+      case 'strict':
+        str += '; SameSite=Strict';
+        break;
+      case 'none':
+        str += '; SameSite=None';
+        break;
+      default:
+        throw new TypeError('option sameSite is invalid');
+    }
+  }
+
+  return str;
+}
+
+/**
+ * URL-decode string value. Optimized to skip native call when no %.
+ *
+ * @param {string} str
+ * @returns {string}
+ */
+
+function decode (str) {
+  return str.indexOf('%') !== -1
+    ? decodeURIComponent(str)
+    : str
+}
+
+/**
+ * Determine if value is a Date.
+ *
+ * @param {*} val
+ * @private
+ */
+
+function isDate (val) {
+  return __toString.call(val) === '[object Date]';
+}
+
+/**
+ * Try decoding a string using a decoding function.
+ *
+ * @param {string} str
+ * @param {function} decode
+ * @private
+ */
+
+function tryDecode(str, decode) {
+  try {
+    return decode(str);
+  } catch (e) {
+    return str;
+  }
+}
diff --git a/backend/node_modules/cookie/package.json b/backend/node_modules/cookie/package.json
new file mode 100644
index 0000000..22e3f92
--- /dev/null
+++ b/backend/node_modules/cookie/package.json
@@ -0,0 +1,44 @@
+{
+  "name": "cookie",
+  "description": "HTTP server cookie parsing and serialization",
+  "version": "0.7.2",
+  "author": "Roman Shtylman <shtylman@gmail.com>",
+  "contributors": [
+    "Douglas Christopher Wilson <doug@somethingdoug.com>"
+  ],
+  "license": "MIT",
+  "keywords": [
+    "cookie",
+    "cookies"
+  ],
+  "repository": "jshttp/cookie",
+  "devDependencies": {
+    "beautify-benchmark": "0.2.4",
+    "benchmark": "2.1.4",
+    "eslint": "8.53.0",
+    "eslint-plugin-markdown": "3.0.1",
+    "mocha": "10.2.0",
+    "nyc": "15.1.0",
+    "safe-buffer": "5.2.1",
+    "top-sites": "1.1.194"
+  },
+  "files": [
+    "HISTORY.md",
+    "LICENSE",
+    "README.md",
+    "SECURITY.md",
+    "index.js"
+  ],
+  "main": "index.js",
+  "engines": {
+    "node": ">= 0.6"
+  },
+  "scripts": {
+    "bench": "node benchmark/index.js",
+    "lint": "eslint .",
+    "test": "mocha --reporter spec --bail --check-leaks test/",
+    "test-ci": "nyc --reporter=lcov --reporter=text npm test",
+    "test-cov": "nyc --reporter=html --reporter=text npm test",
+    "update-bench": "node scripts/update-benchmark.js"
+  }
+}
diff --git a/backend/node_modules/cors/CONTRIBUTING.md b/backend/node_modules/cors/CONTRIBUTING.md
new file mode 100644
index 0000000..591b09a
--- /dev/null
+++ b/backend/node_modules/cors/CONTRIBUTING.md
@@ -0,0 +1,33 @@
+# contributing to `cors`
+
+CORS is a node.js package for providing a [connect](http://www.senchalabs.org/connect/)/[express](http://expressjs.com/) middleware that can be used to enable [CORS](http://en.wikipedia.org/wiki/Cross-origin_resource_sharing) with various options. Learn more about the project in [the README](README.md).
+
+## The CORS Spec
+
+[http://www.w3.org/TR/cors/](http://www.w3.org/TR/cors/)
+
+## Pull Requests Welcome
+
+* Include `'use strict';` in every javascript file.
+* 2 space indentation.
+* Please run the testing steps below before submitting.
+
+## Testing
+
+```bash
+$ npm install
+$ npm test
+```
+
+## Interactive Testing Harness
+
+[http://node-cors-client.herokuapp.com](http://node-cors-client.herokuapp.com)
+
+Related git repositories:
+
+* [https://github.com/TroyGoode/node-cors-server](https://github.com/TroyGoode/node-cors-server)
+* [https://github.com/TroyGoode/node-cors-client](https://github.com/TroyGoode/node-cors-client)
+
+## License
+
+[MIT License](http://www.opensource.org/licenses/mit-license.php)
diff --git a/backend/node_modules/cors/HISTORY.md b/backend/node_modules/cors/HISTORY.md
new file mode 100644
index 0000000..5762bce
--- /dev/null
+++ b/backend/node_modules/cors/HISTORY.md
@@ -0,0 +1,58 @@
+2.8.5 / 2018-11-04
+==================
+
+  * Fix setting `maxAge` option to `0`
+
+2.8.4 / 2017-07-12
+==================
+
+  * Work-around Safari bug in default pre-flight response
+
+2.8.3 / 2017-03-29
+==================
+
+  * Fix error when options delegate missing `methods` option
+
+2.8.2 / 2017-03-28
+==================
+
+  * Fix error when frozen options are passed
+  * Send "Vary: Origin" when using regular expressions
+  * Send "Vary: Access-Control-Request-Headers" when dynamic `allowedHeaders`
+
+2.8.1 / 2016-09-08
+==================
+
+This release only changed documentation.
+
+2.8.0 / 2016-08-23
+==================
+
+  * Add `optionsSuccessStatus` option
+
+2.7.2 / 2016-08-23
+==================
+
+  * Fix error when Node.js running in strict mode
+
+2.7.1 / 2015-05-28
+==================
+
+  * Move module into expressjs organization
+
+2.7.0 / 2015-05-28
+==================
+
+  * Allow array of matching condition as `origin` option
+  * Allow regular expression as `origin` option
+
+2.6.1 / 2015-05-28
+==================
+
+  * Update `license` in package.json
+
+2.6.0 / 2015-04-27
+==================
+
+  * Add `preflightContinue` option
+  * Fix "Vary: Origin" header added for "*"
diff --git a/backend/node_modules/cors/LICENSE b/backend/node_modules/cors/LICENSE
new file mode 100644
index 0000000..fd10c84
--- /dev/null
+++ b/backend/node_modules/cors/LICENSE
@@ -0,0 +1,22 @@
+(The MIT License)
+
+Copyright (c) 2013 Troy Goode <troygoode@gmail.com>
+
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of this software and associated documentation files (the
+'Software'), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sublicense, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to
+the following conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
diff --git a/backend/node_modules/cors/README.md b/backend/node_modules/cors/README.md
new file mode 100644
index 0000000..732b847
--- /dev/null
+++ b/backend/node_modules/cors/README.md
@@ -0,0 +1,243 @@
+# cors
+
+[![NPM Version][npm-image]][npm-url]
+[![NPM Downloads][downloads-image]][downloads-url]
+[![Build Status][travis-image]][travis-url]
+[![Test Coverage][coveralls-image]][coveralls-url]
+
+CORS is a node.js package for providing a [Connect](http://www.senchalabs.org/connect/)/[Express](http://expressjs.com/) middleware that can be used to enable [CORS](http://en.wikipedia.org/wiki/Cross-origin_resource_sharing) with various options.
+
+**[Follow me (@troygoode) on Twitter!](https://twitter.com/intent/user?screen_name=troygoode)**
+
+* [Installation](#installation)
+* [Usage](#usage)
+  * [Simple Usage](#simple-usage-enable-all-cors-requests)
+  * [Enable CORS for a Single Route](#enable-cors-for-a-single-route)
+  * [Configuring CORS](#configuring-cors)
+  * [Configuring CORS Asynchronously](#configuring-cors-asynchronously)
+  * [Enabling CORS Pre-Flight](#enabling-cors-pre-flight)
+* [Configuration Options](#configuration-options)
+* [Demo](#demo)
+* [License](#license)
+* [Author](#author)
+
+## Installation
+
+This is a [Node.js](https://nodejs.org/en/) module available through the
+[npm registry](https://www.npmjs.com/). Installation is done using the
+[`npm install` command](https://docs.npmjs.com/getting-started/installing-npm-packages-locally):
+
+```sh
+$ npm install cors
+```
+
+## Usage
+
+### Simple Usage (Enable *All* CORS Requests)
+
+```javascript
+var express = require('express')
+var cors = require('cors')
+var app = express()
+
+app.use(cors())
+
+app.get('/products/:id', function (req, res, next) {
+  res.json({msg: 'This is CORS-enabled for all origins!'})
+})
+
+app.listen(80, function () {
+  console.log('CORS-enabled web server listening on port 80')
+})
+```
+
+### Enable CORS for a Single Route
+
+```javascript
+var express = require('express')
+var cors = require('cors')
+var app = express()
+
+app.get('/products/:id', cors(), function (req, res, next) {
+  res.json({msg: 'This is CORS-enabled for a Single Route'})
+})
+
+app.listen(80, function () {
+  console.log('CORS-enabled web server listening on port 80')
+})
+```
+
+### Configuring CORS
+
+```javascript
+var express = require('express')
+var cors = require('cors')
+var app = express()
+
+var corsOptions = {
+  origin: 'http://example.com',
+  optionsSuccessStatus: 200 // some legacy browsers (IE11, various SmartTVs) choke on 204
+}
+
+app.get('/products/:id', cors(corsOptions), function (req, res, next) {
+  res.json({msg: 'This is CORS-enabled for only example.com.'})
+})
+
+app.listen(80, function () {
+  console.log('CORS-enabled web server listening on port 80')
+})
+```
+
+### Configuring CORS w/ Dynamic Origin
+
+```javascript
+var express = require('express')
+var cors = require('cors')
+var app = express()
+
+var whitelist = ['http://example1.com', 'http://example2.com']
+var corsOptions = {
+  origin: function (origin, callback) {
+    if (whitelist.indexOf(origin) !== -1) {
+      callback(null, true)
+    } else {
+      callback(new Error('Not allowed by CORS'))
+    }
+  }
+}
+
+app.get('/products/:id', cors(corsOptions), function (req, res, next) {
+  res.json({msg: 'This is CORS-enabled for a whitelisted domain.'})
+})
+
+app.listen(80, function () {
+  console.log('CORS-enabled web server listening on port 80')
+})
+```
+
+If you do not want to block REST tools or server-to-server requests,
+add a `!origin` check in the origin function like so:
+
+```javascript
+var corsOptions = {
+  origin: function (origin, callback) {
+    if (whitelist.indexOf(origin) !== -1 || !origin) {
+      callback(null, true)
+    } else {
+      callback(new Error('Not allowed by CORS'))
+    }
+  }
+}
+```
+
+### Enabling CORS Pre-Flight
+
+Certain CORS requests are considered 'complex' and require an initial
+`OPTIONS` request (called the "pre-flight request"). An example of a
+'complex' CORS request is one that uses an HTTP verb other than
+GET/HEAD/POST (such as DELETE) or that uses custom headers. To enable
+pre-flighting, you must add a new OPTIONS handler for the route you want
+to support:
+
+```javascript
+var express = require('express')
+var cors = require('cors')
+var app = express()
+
+app.options('/products/:id', cors()) // enable pre-flight request for DELETE request
+app.del('/products/:id', cors(), function (req, res, next) {
+  res.json({msg: 'This is CORS-enabled for all origins!'})
+})
+
+app.listen(80, function () {
+  console.log('CORS-enabled web server listening on port 80')
+})
+```
+
+You can also enable pre-flight across-the-board like so:
+
+```javascript
+app.options('*', cors()) // include before other routes
+```
+
+### Configuring CORS Asynchronously
+
+```javascript
+var express = require('express')
+var cors = require('cors')
+var app = express()
+
+var whitelist = ['http://example1.com', 'http://example2.com']
+var corsOptionsDelegate = function (req, callback) {
+  var corsOptions;
+  if (whitelist.indexOf(req.header('Origin')) !== -1) {
+    corsOptions = { origin: true } // reflect (enable) the requested origin in the CORS response
+  } else {
+    corsOptions = { origin: false } // disable CORS for this request
+  }
+  callback(null, corsOptions) // callback expects two parameters: error and options
+}
+
+app.get('/products/:id', cors(corsOptionsDelegate), function (req, res, next) {
+  res.json({msg: 'This is CORS-enabled for a whitelisted domain.'})
+})
+
+app.listen(80, function () {
+  console.log('CORS-enabled web server listening on port 80')
+})
+```
+
+## Configuration Options
+
+* `origin`: Configures the **Access-Control-Allow-Origin** CORS header. Possible values:
+  - `Boolean` - set `origin` to `true` to reflect the [request origin](http://tools.ietf.org/html/draft-abarth-origin-09), as defined by `req.header('Origin')`, or set it to `false` to disable CORS.
+  - `String` - set `origin` to a specific origin. For example if you set it to `"http://example.com"` only requests from "http://example.com" will be allowed.
+  - `RegExp` - set `origin` to a regular expression pattern which will be used to test the request origin. If it's a match, the request origin will be reflected. For example the pattern `/example\.com$/` will reflect any request that is coming from an origin ending with "example.com".
+  - `Array` - set `origin` to an array of valid origins. Each origin can be a `String` or a `RegExp`. For example `["http://example1.com", /\.example2\.com$/]` will accept any request from "http://example1.com" or from a subdomain of "example2.com".
+  - `Function` - set `origin` to a function implementing some custom logic. The function takes the request origin as the first parameter and a callback (which expects the signature `err [object], allow [bool]`) as the second.
+* `methods`: Configures the **Access-Control-Allow-Methods** CORS header. Expects a comma-delimited string (ex: 'GET,PUT,POST') or an array (ex: `['GET', 'PUT', 'POST']`).
+* `allowedHeaders`: Configures the **Access-Control-Allow-Headers** CORS header. Expects a comma-delimited string (ex: 'Content-Type,Authorization') or an array (ex: `['Content-Type', 'Authorization']`). If not specified, defaults to reflecting the headers specified in the request's **Access-Control-Request-Headers** header.
+* `exposedHeaders`: Configures the **Access-Control-Expose-Headers** CORS header. Expects a comma-delimited string (ex: 'Content-Range,X-Content-Range') or an array (ex: `['Content-Range', 'X-Content-Range']`). If not specified, no custom headers are exposed.
+* `credentials`: Configures the **Access-Control-Allow-Credentials** CORS header. Set to `true` to pass the header, otherwise it is omitted.
+* `maxAge`: Configures the **Access-Control-Max-Age** CORS header. Set to an integer to pass the header, otherwise it is omitted.
+* `preflightContinue`: Pass the CORS preflight response to the next handler.
+* `optionsSuccessStatus`: Provides a status code to use for successful `OPTIONS` requests, since some legacy browsers (IE11, various SmartTVs) choke on `204`.
+
+The default configuration is the equivalent of:
+
+```json
+{
+  "origin": "*",
+  "methods": "GET,HEAD,PUT,PATCH,POST,DELETE",
+  "preflightContinue": false,
+  "optionsSuccessStatus": 204
+}
+```
+
+For details on the effect of each CORS header, read [this](http://www.html5rocks.com/en/tutorials/cors/) article on HTML5 Rocks.
+
+## Demo
+
+A demo that illustrates CORS working (and not working) using jQuery is available here: [http://node-cors-client.herokuapp.com/](http://node-cors-client.herokuapp.com/)
+
+Code for that demo can be found here:
+
+* Client: [https://github.com/TroyGoode/node-cors-client](https://github.com/TroyGoode/node-cors-client)
+* Server: [https://github.com/TroyGoode/node-cors-server](https://github.com/TroyGoode/node-cors-server)
+
+## License
+
+[MIT License](http://www.opensource.org/licenses/mit-license.php)
+
+## Author
+
+[Troy Goode](https://github.com/TroyGoode) ([troygoode@gmail.com](mailto:troygoode@gmail.com))
+
+[coveralls-image]: https://img.shields.io/coveralls/expressjs/cors/master.svg
+[coveralls-url]: https://coveralls.io/r/expressjs/cors?branch=master
+[downloads-image]: https://img.shields.io/npm/dm/cors.svg
+[downloads-url]: https://npmjs.org/package/cors
+[npm-image]: https://img.shields.io/npm/v/cors.svg
+[npm-url]: https://npmjs.org/package/cors
+[travis-image]: https://img.shields.io/travis/expressjs/cors/master.svg
+[travis-url]: https://travis-ci.org/expressjs/cors
diff --git a/backend/node_modules/cors/lib/index.js b/backend/node_modules/cors/lib/index.js
new file mode 100644
index 0000000..5475aec
--- /dev/null
+++ b/backend/node_modules/cors/lib/index.js
@@ -0,0 +1,238 @@
+(function () {
+
+  'use strict';
+
+  var assign = require('object-assign');
+  var vary = require('vary');
+
+  var defaults = {
+    origin: '*',
+    methods: 'GET,HEAD,PUT,PATCH,POST,DELETE',
+    preflightContinue: false,
+    optionsSuccessStatus: 204
+  };
+
+  function isString(s) {
+    return typeof s === 'string' || s instanceof String;
+  }
+
+  function isOriginAllowed(origin, allowedOrigin) {
+    if (Array.isArray(allowedOrigin)) {
+      for (var i = 0; i < allowedOrigin.length; ++i) {
+        if (isOriginAllowed(origin, allowedOrigin[i])) {
+          return true;
+        }
+      }
+      return false;
+    } else if (isString(allowedOrigin)) {
+      return origin === allowedOrigin;
+    } else if (allowedOrigin instanceof RegExp) {
+      return allowedOrigin.test(origin);
+    } else {
+      return !!allowedOrigin;
+    }
+  }
+
+  function configureOrigin(options, req) {
+    var requestOrigin = req.headers.origin,
+      headers = [],
+      isAllowed;
+
+    if (!options.origin || options.origin === '*') {
+      // allow any origin
+      headers.push([{
+        key: 'Access-Control-Allow-Origin',
+        value: '*'
+      }]);
+    } else if (isString(options.origin)) {
+      // fixed origin
+      headers.push([{
+        key: 'Access-Control-Allow-Origin',
+        value: options.origin
+      }]);
+      headers.push([{
+        key: 'Vary',
+        value: 'Origin'
+      }]);
+    } else {
+      isAllowed = isOriginAllowed(requestOrigin, options.origin);
+      // reflect origin
+      headers.push([{
+        key: 'Access-Control-Allow-Origin',
+        value: isAllowed ? requestOrigin : false
+      }]);
+      headers.push([{
+        key: 'Vary',
+        value: 'Origin'
+      }]);
+    }
+
+    return headers;
+  }
+
+  function configureMethods(options) {
+    var methods = options.methods;
+    if (methods.join) {
+      methods = options.methods.join(','); // .methods is an array, so turn it into a string
+    }
+    return {
+      key: 'Access-Control-Allow-Methods',
+      value: methods
+    };
+  }
+
+  function configureCredentials(options) {
+    if (options.credentials === true) {
+      return {
+        key: 'Access-Control-Allow-Credentials',
+        value: 'true'
+      };
+    }
+    return null;
+  }
+
+  function configureAllowedHeaders(options, req) {
+    var allowedHeaders = options.allowedHeaders || options.headers;
+    var headers = [];
+
+    if (!allowedHeaders) {
+      allowedHeaders = req.headers['access-control-request-headers']; // .headers wasn't specified, so reflect the request headers
+      headers.push([{
+        key: 'Vary',
+        value: 'Access-Control-Request-Headers'
+      }]);
+    } else if (allowedHeaders.join) {
+      allowedHeaders = allowedHeaders.join(','); // .headers is an array, so turn it into a string
+    }
+    if (allowedHeaders && allowedHeaders.length) {
+      headers.push([{
+        key: 'Access-Control-Allow-Headers',
+        value: allowedHeaders
+      }]);
+    }
+
+    return headers;
+  }
+
+  function configureExposedHeaders(options) {
+    var headers = options.exposedHeaders;
+    if (!headers) {
+      return null;
+    } else if (headers.join) {
+      headers = headers.join(','); // .headers is an array, so turn it into a string
+    }
+    if (headers && headers.length) {
+      return {
+        key: 'Access-Control-Expose-Headers',
+        value: headers
+      };
+    }
+    return null;
+  }
+
+  function configureMaxAge(options) {
+    var maxAge = (typeof options.maxAge === 'number' || options.maxAge) && options.maxAge.toString()
+    if (maxAge && maxAge.length) {
+      return {
+        key: 'Access-Control-Max-Age',
+        value: maxAge
+      };
+    }
+    return null;
+  }
+
+  function applyHeaders(headers, res) {
+    for (var i = 0, n = headers.length; i < n; i++) {
+      var header = headers[i];
+      if (header) {
+        if (Array.isArray(header)) {
+          applyHeaders(header, res);
+        } else if (header.key === 'Vary' && header.value) {
+          vary(res, header.value);
+        } else if (header.value) {
+          res.setHeader(header.key, header.value);
+        }
+      }
+    }
+  }
+
+  function cors(options, req, res, next) {
+    var headers = [],
+      method = req.method && req.method.toUpperCase && req.method.toUpperCase();
+
+    if (method === 'OPTIONS') {
+      // preflight
+      headers.push(configureOrigin(options, req));
+      headers.push(configureCredentials(options, req));
+      headers.push(configureMethods(options, req));
+      headers.push(configureAllowedHeaders(options, req));
+      headers.push(configureMaxAge(options, req));
+      headers.push(configureExposedHeaders(options, req));
+      applyHeaders(headers, res);
+
+      if (options.preflightContinue) {
+        next();
+      } else {
+        // Safari (and potentially other browsers) need content-length 0,
+        //   for 204 or they just hang waiting for a body
+        res.statusCode = options.optionsSuccessStatus;
+        res.setHeader('Content-Length', '0');
+        res.end();
+      }
+    } else {
+      // actual response
+      headers.push(configureOrigin(options, req));
+      headers.push(configureCredentials(options, req));
+      headers.push(configureExposedHeaders(options, req));
+      applyHeaders(headers, res);
+      next();
+    }
+  }
+
+  function middlewareWrapper(o) {
+    // if options are static (either via defaults or custom options passed in), wrap in a function
+    var optionsCallback = null;
+    if (typeof o === 'function') {
+      optionsCallback = o;
+    } else {
+      optionsCallback = function (req, cb) {
+        cb(null, o);
+      };
+    }
+
+    return function corsMiddleware(req, res, next) {
+      optionsCallback(req, function (err, options) {
+        if (err) {
+          next(err);
+        } else {
+          var corsOptions = assign({}, defaults, options);
+          var originCallback = null;
+          if (corsOptions.origin && typeof corsOptions.origin === 'function') {
+            originCallback = corsOptions.origin;
+          } else if (corsOptions.origin) {
+            originCallback = function (origin, cb) {
+              cb(null, corsOptions.origin);
+            };
+          }
+
+          if (originCallback) {
+            originCallback(req.headers.origin, function (err2, origin) {
+              if (err2 || !origin) {
+                next(err2);
+              } else {
+                corsOptions.origin = origin;
+                cors(corsOptions, req, res, next);
+              }
+            });
+          } else {
+            next();
+          }
+        }
+      });
+    };
+  }
+
+  // can pass either an options hash, an options delegate, or nothing
+  module.exports = middlewareWrapper;
+
+}());
diff --git a/backend/node_modules/cors/package.json b/backend/node_modules/cors/package.json
new file mode 100644
index 0000000..ff37d98
--- /dev/null
+++ b/backend/node_modules/cors/package.json
@@ -0,0 +1,41 @@
+{
+  "name": "cors",
+  "description": "Node.js CORS middleware",
+  "version": "2.8.5",
+  "author": "Troy Goode <troygoode@gmail.com> (https://github.com/troygoode/)",
+  "license": "MIT",
+  "keywords": [
+    "cors",
+    "express",
+    "connect",
+    "middleware"
+  ],
+  "repository": "expressjs/cors",
+  "main": "./lib/index.js",
+  "dependencies": {
+    "object-assign": "^4",
+    "vary": "^1"
+  },
+  "devDependencies": {
+    "after": "0.8.2",
+    "eslint": "2.13.1",
+    "express": "4.16.3",
+    "mocha": "5.2.0",
+    "nyc": "13.1.0",
+    "supertest": "3.3.0"
+  },
+  "files": [
+    "lib/index.js",
+    "CONTRIBUTING.md",
+    "HISTORY.md",
+    "LICENSE",
+    "README.md"
+  ],
+  "engines": {
+    "node": ">= 0.10"
+  },
+  "scripts": {
+    "test": "npm run lint && nyc --reporter=html --reporter=text mocha --require test/support/env",
+    "lint": "eslint lib test"
+  }
+}
diff --git a/backend/node_modules/debug/LICENSE b/backend/node_modules/debug/LICENSE
new file mode 100644
index 0000000..1a9820e
--- /dev/null
+++ b/backend/node_modules/debug/LICENSE
@@ -0,0 +1,20 @@
+(The MIT License)
+
+Copyright (c) 2014-2017 TJ Holowaychuk <tj@vision-media.ca>
+Copyright (c) 2018-2021 Josh Junon
+
+Permission is hereby granted, free of charge, to any person obtaining a copy of this software
+and associated documentation files (the 'Software'), to deal in the Software without restriction,
+including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense,
+and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so,
+subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all copies or substantial
+portions of the Software.
+
+THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT
+LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+
diff --git a/backend/node_modules/debug/README.md b/backend/node_modules/debug/README.md
new file mode 100644
index 0000000..9ebdfbf
--- /dev/null
+++ b/backend/node_modules/debug/README.md
@@ -0,0 +1,481 @@
+# debug
+[![OpenCollective](https://opencollective.com/debug/backers/badge.svg)](#backers)
+[![OpenCollective](https://opencollective.com/debug/sponsors/badge.svg)](#sponsors)
+
+<img width="647" src="https://user-images.githubusercontent.com/71256/29091486-fa38524c-7c37-11e7-895f-e7ec8e1039b6.png">
+
+A tiny JavaScript debugging utility modelled after Node.js core's debugging
+technique. Works in Node.js and web browsers.
+
+## Installation
+
+```bash
+$ npm install debug
+```
+
+## Usage
+
+`debug` exposes a function; simply pass this function the name of your module, and it will return a decorated version of `console.error` for you to pass debug statements to. This will allow you to toggle the debug output for different parts of your module as well as the module as a whole.
+
+Example [_app.js_](./examples/node/app.js):
+
+```js
+var debug = require('debug')('http')
+  , http = require('http')
+  , name = 'My App';
+
+// fake app
+
+debug('booting %o', name);
+
+http.createServer(function(req, res){
+  debug(req.method + ' ' + req.url);
+  res.end('hello\n');
+}).listen(3000, function(){
+  debug('listening');
+});
+
+// fake worker of some kind
+
+require('./worker');
+```
+
+Example [_worker.js_](./examples/node/worker.js):
+
+```js
+var a = require('debug')('worker:a')
+  , b = require('debug')('worker:b');
+
+function work() {
+  a('doing lots of uninteresting work');
+  setTimeout(work, Math.random() * 1000);
+}
+
+work();
+
+function workb() {
+  b('doing some work');
+  setTimeout(workb, Math.random() * 2000);
+}
+
+workb();
+```
+
+The `DEBUG` environment variable is then used to enable these based on space or
+comma-delimited names.
+
+Here are some examples:
+
+<img width="647" alt="screen shot 2017-08-08 at 12 53 04 pm" src="https://user-images.githubusercontent.com/71256/29091703-a6302cdc-7c38-11e7-8304-7c0b3bc600cd.png">
+<img width="647" alt="screen shot 2017-08-08 at 12 53 38 pm" src="https://user-images.githubusercontent.com/71256/29091700-a62a6888-7c38-11e7-800b-db911291ca2b.png">
+<img width="647" alt="screen shot 2017-08-08 at 12 53 25 pm" src="https://user-images.githubusercontent.com/71256/29091701-a62ea114-7c38-11e7-826a-2692bedca740.png">
+
+#### Windows command prompt notes
+
+##### CMD
+
+On Windows the environment variable is set using the `set` command.
+
+```cmd
+set DEBUG=*,-not_this
+```
+
+Example:
+
+```cmd
+set DEBUG=* & node app.js
+```
+
+##### PowerShell (VS Code default)
+
+PowerShell uses different syntax to set environment variables.
+
+```cmd
+$env:DEBUG = "*,-not_this"
+```
+
+Example:
+
+```cmd
+$env:DEBUG='app';node app.js
+```
+
+Then, run the program to be debugged as usual.
+
+npm script example:
+```js
+  "windowsDebug": "@powershell -Command $env:DEBUG='*';node app.js",
+```
+
+## Namespace Colors
+
+Every debug instance has a color generated for it based on its namespace name.
+This helps when visually parsing the debug output to identify which debug instance
+a debug line belongs to.
+
+#### Node.js
+
+In Node.js, colors are enabled when stderr is a TTY. You also _should_ install
+the [`supports-color`](https://npmjs.org/supports-color) module alongside debug,
+otherwise debug will only use a small handful of basic colors.
+
+<img width="521" src="https://user-images.githubusercontent.com/71256/29092181-47f6a9e6-7c3a-11e7-9a14-1928d8a711cd.png">
+
+#### Web Browser
+
+Colors are also enabled on "Web Inspectors" that understand the `%c` formatting
+option. These are WebKit web inspectors, Firefox ([since version
+31](https://hacks.mozilla.org/2014/05/editable-box-model-multiple-selection-sublime-text-keys-much-more-firefox-developer-tools-episode-31/))
+and the Firebug plugin for Firefox (any version).
+
+<img width="524" src="https://user-images.githubusercontent.com/71256/29092033-b65f9f2e-7c39-11e7-8e32-f6f0d8e865c1.png">
+
+
+## Millisecond diff
+
+When actively developing an application it can be useful to see when the time spent between one `debug()` call and the next. Suppose for example you invoke `debug()` before requesting a resource, and after as well, the "+NNNms" will show you how much time was spent between calls.
+
+<img width="647" src="https://user-images.githubusercontent.com/71256/29091486-fa38524c-7c37-11e7-895f-e7ec8e1039b6.png">
+
+When stdout is not a TTY, `Date#toISOString()` is used, making it more useful for logging the debug information as shown below:
+
+<img width="647" src="https://user-images.githubusercontent.com/71256/29091956-6bd78372-7c39-11e7-8c55-c948396d6edd.png">
+
+
+## Conventions
+
+If you're using this in one or more of your libraries, you _should_ use the name of your library so that developers may toggle debugging as desired without guessing names. If you have more than one debuggers you _should_ prefix them with your library name and use ":" to separate features. For example "bodyParser" from Connect would then be "connect:bodyParser".  If you append a "*" to the end of your name, it will always be enabled regardless of the setting of the DEBUG environment variable.  You can then use it for normal output as well as debug output.
+
+## Wildcards
+
+The `*` character may be used as a wildcard. Suppose for example your library has
+debuggers named "connect:bodyParser", "connect:compress", "connect:session",
+instead of listing all three with
+`DEBUG=connect:bodyParser,connect:compress,connect:session`, you may simply do
+`DEBUG=connect:*`, or to run everything using this module simply use `DEBUG=*`.
+
+You can also exclude specific debuggers by prefixing them with a "-" character.
+For example, `DEBUG=*,-connect:*` would include all debuggers except those
+starting with "connect:".
+
+## Environment Variables
+
+When running through Node.js, you can set a few environment variables that will
+change the behavior of the debug logging:
+
+| Name      | Purpose                                         |
+|-----------|-------------------------------------------------|
+| `DEBUG`   | Enables/disables specific debugging namespaces. |
+| `DEBUG_HIDE_DATE` | Hide date from debug output (non-TTY).  |
+| `DEBUG_COLORS`| Whether or not to use colors in the debug output. |
+| `DEBUG_DEPTH` | Object inspection depth.                    |
+| `DEBUG_SHOW_HIDDEN` | Shows hidden properties on inspected objects. |
+
+
+__Note:__ The environment variables beginning with `DEBUG_` end up being
+converted into an Options object that gets used with `%o`/`%O` formatters.
+See the Node.js documentation for
+[`util.inspect()`](https://nodejs.org/api/util.html#util_util_inspect_object_options)
+for the complete list.
+
+## Formatters
+
+Debug uses [printf-style](https://wikipedia.org/wiki/Printf_format_string) formatting.
+Below are the officially supported formatters:
+
+| Formatter | Representation |
+|-----------|----------------|
+| `%O`      | Pretty-print an Object on multiple lines. |
+| `%o`      | Pretty-print an Object all on a single line. |
+| `%s`      | String. |
+| `%d`      | Number (both integer and float). |
+| `%j`      | JSON. Replaced with the string '[Circular]' if the argument contains circular references. |
+| `%%`      | Single percent sign ('%'). This does not consume an argument. |
+
+
+### Custom formatters
+
+You can add custom formatters by extending the `debug.formatters` object.
+For example, if you wanted to add support for rendering a Buffer as hex with
+`%h`, you could do something like:
+
+```js
+const createDebug = require('debug')
+createDebug.formatters.h = (v) => {
+  return v.toString('hex')
+}
+
+// …elsewhere
+const debug = createDebug('foo')
+debug('this is hex: %h', new Buffer('hello world'))
+//   foo this is hex: 68656c6c6f20776f726c6421 +0ms
+```
+
+
+## Browser Support
+
+You can build a browser-ready script using [browserify](https://github.com/substack/node-browserify),
+or just use the [browserify-as-a-service](https://wzrd.in/) [build](https://wzrd.in/standalone/debug@latest),
+if you don't want to build it yourself.
+
+Debug's enable state is currently persisted by `localStorage`.
+Consider the situation shown below where you have `worker:a` and `worker:b`,
+and wish to debug both. You can enable this using `localStorage.debug`:
+
+```js
+localStorage.debug = 'worker:*'
+```
+
+And then refresh the page.
+
+```js
+a = debug('worker:a');
+b = debug('worker:b');
+
+setInterval(function(){
+  a('doing some work');
+}, 1000);
+
+setInterval(function(){
+  b('doing some work');
+}, 1200);
+```
+
+In Chromium-based web browsers (e.g. Brave, Chrome, and Electron), the JavaScript console will—by default—only show messages logged by `debug` if the "Verbose" log level is _enabled_.
+
+<img width="647" src="https://user-images.githubusercontent.com/7143133/152083257-29034707-c42c-4959-8add-3cee850e6fcf.png">
+
+## Output streams
+
+  By default `debug` will log to stderr, however this can be configured per-namespace by overriding the `log` method:
+
+Example [_stdout.js_](./examples/node/stdout.js):
+
+```js
+var debug = require('debug');
+var error = debug('app:error');
+
+// by default stderr is used
+error('goes to stderr!');
+
+var log = debug('app:log');
+// set this namespace to log via console.log
+log.log = console.log.bind(console); // don't forget to bind to console!
+log('goes to stdout');
+error('still goes to stderr!');
+
+// set all output to go via console.info
+// overrides all per-namespace log settings
+debug.log = console.info.bind(console);
+error('now goes to stdout via console.info');
+log('still goes to stdout, but via console.info now');
+```
+
+## Extend
+You can simply extend debugger 
+```js
+const log = require('debug')('auth');
+
+//creates new debug instance with extended namespace
+const logSign = log.extend('sign');
+const logLogin = log.extend('login');
+
+log('hello'); // auth hello
+logSign('hello'); //auth:sign hello
+logLogin('hello'); //auth:login hello
+```
+
+## Set dynamically
+
+You can also enable debug dynamically by calling the `enable()` method :
+
+```js
+let debug = require('debug');
+
+console.log(1, debug.enabled('test'));
+
+debug.enable('test');
+console.log(2, debug.enabled('test'));
+
+debug.disable();
+console.log(3, debug.enabled('test'));
+
+```
+
+print :   
+```
+1 false
+2 true
+3 false
+```
+
+Usage :  
+`enable(namespaces)`  
+`namespaces` can include modes separated by a colon and wildcards.
+   
+Note that calling `enable()` completely overrides previously set DEBUG variable : 
+
+```
+$ DEBUG=foo node -e 'var dbg = require("debug"); dbg.enable("bar"); console.log(dbg.enabled("foo"))'
+=> false
+```
+
+`disable()`
+
+Will disable all namespaces. The functions returns the namespaces currently
+enabled (and skipped). This can be useful if you want to disable debugging
+temporarily without knowing what was enabled to begin with.
+
+For example:
+
+```js
+let debug = require('debug');
+debug.enable('foo:*,-foo:bar');
+let namespaces = debug.disable();
+debug.enable(namespaces);
+```
+
+Note: There is no guarantee that the string will be identical to the initial
+enable string, but semantically they will be identical.
+
+## Checking whether a debug target is enabled
+
+After you've created a debug instance, you can determine whether or not it is
+enabled by checking the `enabled` property:
+
+```javascript
+const debug = require('debug')('http');
+
+if (debug.enabled) {
+  // do stuff...
+}
+```
+
+You can also manually toggle this property to force the debug instance to be
+enabled or disabled.
+
+## Usage in child processes
+
+Due to the way `debug` detects if the output is a TTY or not, colors are not shown in child processes when `stderr` is piped. A solution is to pass the `DEBUG_COLORS=1` environment variable to the child process.  
+For example:
+
+```javascript
+worker = fork(WORKER_WRAP_PATH, [workerPath], {
+  stdio: [
+    /* stdin: */ 0,
+    /* stdout: */ 'pipe',
+    /* stderr: */ 'pipe',
+    'ipc',
+  ],
+  env: Object.assign({}, process.env, {
+    DEBUG_COLORS: 1 // without this settings, colors won't be shown
+  }),
+});
+
+worker.stderr.pipe(process.stderr, { end: false });
+```
+
+
+## Authors
+
+ - TJ Holowaychuk
+ - Nathan Rajlich
+ - Andrew Rhyne
+ - Josh Junon
+
+## Backers
+
+Support us with a monthly donation and help us continue our activities. [[Become a backer](https://opencollective.com/debug#backer)]
+
+<a href="https://opencollective.com/debug/backer/0/website" target="_blank"><img src="https://opencollective.com/debug/backer/0/avatar.svg"></a>
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+
+
+## Sponsors
+
+Become a sponsor and get your logo on our README on Github with a link to your site. [[Become a sponsor](https://opencollective.com/debug#sponsor)]
+
+<a href="https://opencollective.com/debug/sponsor/0/website" target="_blank"><img src="https://opencollective.com/debug/sponsor/0/avatar.svg"></a>
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+
+## License
+
+(The MIT License)
+
+Copyright (c) 2014-2017 TJ Holowaychuk &lt;tj@vision-media.ca&gt;
+Copyright (c) 2018-2021 Josh Junon
+
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of this software and associated documentation files (the
+'Software'), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sublicense, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to
+the following conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
diff --git a/backend/node_modules/debug/package.json b/backend/node_modules/debug/package.json
new file mode 100644
index 0000000..ee8abb5
--- /dev/null
+++ b/backend/node_modules/debug/package.json
@@ -0,0 +1,64 @@
+{
+  "name": "debug",
+  "version": "4.4.3",
+  "repository": {
+    "type": "git",
+    "url": "git://github.com/debug-js/debug.git"
+  },
+  "description": "Lightweight debugging utility for Node.js and the browser",
+  "keywords": [
+    "debug",
+    "log",
+    "debugger"
+  ],
+  "files": [
+    "src",
+    "LICENSE",
+    "README.md"
+  ],
+  "author": "Josh Junon (https://github.com/qix-)",
+  "contributors": [
+    "TJ Holowaychuk <tj@vision-media.ca>",
+    "Nathan Rajlich <nathan@tootallnate.net> (http://n8.io)",
+    "Andrew Rhyne <rhyneandrew@gmail.com>"
+  ],
+  "license": "MIT",
+  "scripts": {
+    "lint": "xo",
+    "test": "npm run test:node && npm run test:browser && npm run lint",
+    "test:node": "mocha test.js test.node.js",
+    "test:browser": "karma start --single-run",
+    "test:coverage": "cat ./coverage/lcov.info | coveralls"
+  },
+  "dependencies": {
+    "ms": "^2.1.3"
+  },
+  "devDependencies": {
+    "brfs": "^2.0.1",
+    "browserify": "^16.2.3",
+    "coveralls": "^3.0.2",
+    "karma": "^3.1.4",
+    "karma-browserify": "^6.0.0",
+    "karma-chrome-launcher": "^2.2.0",
+    "karma-mocha": "^1.3.0",
+    "mocha": "^5.2.0",
+    "mocha-lcov-reporter": "^1.2.0",
+    "sinon": "^14.0.0",
+    "xo": "^0.23.0"
+  },
+  "peerDependenciesMeta": {
+    "supports-color": {
+      "optional": true
+    }
+  },
+  "main": "./src/index.js",
+  "browser": "./src/browser.js",
+  "engines": {
+    "node": ">=6.0"
+  },
+  "xo": {
+    "rules": {
+      "import/extensions": "off"
+    }
+  }
+}
diff --git a/backend/node_modules/debug/src/browser.js b/backend/node_modules/debug/src/browser.js
new file mode 100644
index 0000000..5993451
--- /dev/null
+++ b/backend/node_modules/debug/src/browser.js
@@ -0,0 +1,272 @@
+/* eslint-env browser */
+
+/**
+ * This is the web browser implementation of `debug()`.
+ */
+
+exports.formatArgs = formatArgs;
+exports.save = save;
+exports.load = load;
+exports.useColors = useColors;
+exports.storage = localstorage();
+exports.destroy = (() => {
+	let warned = false;
+
+	return () => {
+		if (!warned) {
+			warned = true;
+			console.warn('Instance method `debug.destroy()` is deprecated and no longer does anything. It will be removed in the next major version of `debug`.');
+		}
+	};
+})();
+
+/**
+ * Colors.
+ */
+
+exports.colors = [
+	'#0000CC',
+	'#0000FF',
+	'#0033CC',
+	'#0033FF',
+	'#0066CC',
+	'#0066FF',
+	'#0099CC',
+	'#0099FF',
+	'#00CC00',
+	'#00CC33',
+	'#00CC66',
+	'#00CC99',
+	'#00CCCC',
+	'#00CCFF',
+	'#3300CC',
+	'#3300FF',
+	'#3333CC',
+	'#3333FF',
+	'#3366CC',
+	'#3366FF',
+	'#3399CC',
+	'#3399FF',
+	'#33CC00',
+	'#33CC33',
+	'#33CC66',
+	'#33CC99',
+	'#33CCCC',
+	'#33CCFF',
+	'#6600CC',
+	'#6600FF',
+	'#6633CC',
+	'#6633FF',
+	'#66CC00',
+	'#66CC33',
+	'#9900CC',
+	'#9900FF',
+	'#9933CC',
+	'#9933FF',
+	'#99CC00',
+	'#99CC33',
+	'#CC0000',
+	'#CC0033',
+	'#CC0066',
+	'#CC0099',
+	'#CC00CC',
+	'#CC00FF',
+	'#CC3300',
+	'#CC3333',
+	'#CC3366',
+	'#CC3399',
+	'#CC33CC',
+	'#CC33FF',
+	'#CC6600',
+	'#CC6633',
+	'#CC9900',
+	'#CC9933',
+	'#CCCC00',
+	'#CCCC33',
+	'#FF0000',
+	'#FF0033',
+	'#FF0066',
+	'#FF0099',
+	'#FF00CC',
+	'#FF00FF',
+	'#FF3300',
+	'#FF3333',
+	'#FF3366',
+	'#FF3399',
+	'#FF33CC',
+	'#FF33FF',
+	'#FF6600',
+	'#FF6633',
+	'#FF9900',
+	'#FF9933',
+	'#FFCC00',
+	'#FFCC33'
+];
+
+/**
+ * Currently only WebKit-based Web Inspectors, Firefox >= v31,
+ * and the Firebug extension (any Firefox version) are known
+ * to support "%c" CSS customizations.
+ *
+ * TODO: add a `localStorage` variable to explicitly enable/disable colors
+ */
+
+// eslint-disable-next-line complexity
+function useColors() {
+	// NB: In an Electron preload script, document will be defined but not fully
+	// initialized. Since we know we're in Chrome, we'll just detect this case
+	// explicitly
+	if (typeof window !== 'undefined' && window.process && (window.process.type === 'renderer' || window.process.__nwjs)) {
+		return true;
+	}
+
+	// Internet Explorer and Edge do not support colors.
+	if (typeof navigator !== 'undefined' && navigator.userAgent && navigator.userAgent.toLowerCase().match(/(edge|trident)\/(\d+)/)) {
+		return false;
+	}
+
+	let m;
+
+	// Is webkit? http://stackoverflow.com/a/16459606/376773
+	// document is undefined in react-native: https://github.com/facebook/react-native/pull/1632
+	// eslint-disable-next-line no-return-assign
+	return (typeof document !== 'undefined' && document.documentElement && document.documentElement.style && document.documentElement.style.WebkitAppearance) ||
+		// Is firebug? http://stackoverflow.com/a/398120/376773
+		(typeof window !== 'undefined' && window.console && (window.console.firebug || (window.console.exception && window.console.table))) ||
+		// Is firefox >= v31?
+		// https://developer.mozilla.org/en-US/docs/Tools/Web_Console#Styling_messages
+		(typeof navigator !== 'undefined' && navigator.userAgent && (m = navigator.userAgent.toLowerCase().match(/firefox\/(\d+)/)) && parseInt(m[1], 10) >= 31) ||
+		// Double check webkit in userAgent just in case we are in a worker
+		(typeof navigator !== 'undefined' && navigator.userAgent && navigator.userAgent.toLowerCase().match(/applewebkit\/(\d+)/));
+}
+
+/**
+ * Colorize log arguments if enabled.
+ *
+ * @api public
+ */
+
+function formatArgs(args) {
+	args[0] = (this.useColors ? '%c' : '') +
+		this.namespace +
+		(this.useColors ? ' %c' : ' ') +
+		args[0] +
+		(this.useColors ? '%c ' : ' ') +
+		'+' + module.exports.humanize(this.diff);
+
+	if (!this.useColors) {
+		return;
+	}
+
+	const c = 'color: ' + this.color;
+	args.splice(1, 0, c, 'color: inherit');
+
+	// The final "%c" is somewhat tricky, because there could be other
+	// arguments passed either before or after the %c, so we need to
+	// figure out the correct index to insert the CSS into
+	let index = 0;
+	let lastC = 0;
+	args[0].replace(/%[a-zA-Z%]/g, match => {
+		if (match === '%%') {
+			return;
+		}
+		index++;
+		if (match === '%c') {
+			// We only are interested in the *last* %c
+			// (the user may have provided their own)
+			lastC = index;
+		}
+	});
+
+	args.splice(lastC, 0, c);
+}
+
+/**
+ * Invokes `console.debug()` when available.
+ * No-op when `console.debug` is not a "function".
+ * If `console.debug` is not available, falls back
+ * to `console.log`.
+ *
+ * @api public
+ */
+exports.log = console.debug || console.log || (() => {});
+
+/**
+ * Save `namespaces`.
+ *
+ * @param {String} namespaces
+ * @api private
+ */
+function save(namespaces) {
+	try {
+		if (namespaces) {
+			exports.storage.setItem('debug', namespaces);
+		} else {
+			exports.storage.removeItem('debug');
+		}
+	} catch (error) {
+		// Swallow
+		// XXX (@Qix-) should we be logging these?
+	}
+}
+
+/**
+ * Load `namespaces`.
+ *
+ * @return {String} returns the previously persisted debug modes
+ * @api private
+ */
+function load() {
+	let r;
+	try {
+		r = exports.storage.getItem('debug') || exports.storage.getItem('DEBUG') ;
+	} catch (error) {
+		// Swallow
+		// XXX (@Qix-) should we be logging these?
+	}
+
+	// If debug isn't set in LS, and we're in Electron, try to load $DEBUG
+	if (!r && typeof process !== 'undefined' && 'env' in process) {
+		r = process.env.DEBUG;
+	}
+
+	return r;
+}
+
+/**
+ * Localstorage attempts to return the localstorage.
+ *
+ * This is necessary because safari throws
+ * when a user disables cookies/localstorage
+ * and you attempt to access it.
+ *
+ * @return {LocalStorage}
+ * @api private
+ */
+
+function localstorage() {
+	try {
+		// TVMLKit (Apple TV JS Runtime) does not have a window object, just localStorage in the global context
+		// The Browser also has localStorage in the global context.
+		return localStorage;
+	} catch (error) {
+		// Swallow
+		// XXX (@Qix-) should we be logging these?
+	}
+}
+
+module.exports = require('./common')(exports);
+
+const {formatters} = module.exports;
+
+/**
+ * Map %j to `JSON.stringify()`, since no Web Inspectors do that by default.
+ */
+
+formatters.j = function (v) {
+	try {
+		return JSON.stringify(v);
+	} catch (error) {
+		return '[UnexpectedJSONParseError]: ' + error.message;
+	}
+};
diff --git a/backend/node_modules/debug/src/common.js b/backend/node_modules/debug/src/common.js
new file mode 100644
index 0000000..141cb57
--- /dev/null
+++ b/backend/node_modules/debug/src/common.js
@@ -0,0 +1,292 @@
+
+/**
+ * This is the common logic for both the Node.js and web browser
+ * implementations of `debug()`.
+ */
+
+function setup(env) {
+	createDebug.debug = createDebug;
+	createDebug.default = createDebug;
+	createDebug.coerce = coerce;
+	createDebug.disable = disable;
+	createDebug.enable = enable;
+	createDebug.enabled = enabled;
+	createDebug.humanize = require('ms');
+	createDebug.destroy = destroy;
+
+	Object.keys(env).forEach(key => {
+		createDebug[key] = env[key];
+	});
+
+	/**
+	* The currently active debug mode names, and names to skip.
+	*/
+
+	createDebug.names = [];
+	createDebug.skips = [];
+
+	/**
+	* Map of special "%n" handling functions, for the debug "format" argument.
+	*
+	* Valid key names are a single, lower or upper-case letter, i.e. "n" and "N".
+	*/
+	createDebug.formatters = {};
+
+	/**
+	* Selects a color for a debug namespace
+	* @param {String} namespace The namespace string for the debug instance to be colored
+	* @return {Number|String} An ANSI color code for the given namespace
+	* @api private
+	*/
+	function selectColor(namespace) {
+		let hash = 0;
+
+		for (let i = 0; i < namespace.length; i++) {
+			hash = ((hash << 5) - hash) + namespace.charCodeAt(i);
+			hash |= 0; // Convert to 32bit integer
+		}
+
+		return createDebug.colors[Math.abs(hash) % createDebug.colors.length];
+	}
+	createDebug.selectColor = selectColor;
+
+	/**
+	* Create a debugger with the given `namespace`.
+	*
+	* @param {String} namespace
+	* @return {Function}
+	* @api public
+	*/
+	function createDebug(namespace) {
+		let prevTime;
+		let enableOverride = null;
+		let namespacesCache;
+		let enabledCache;
+
+		function debug(...args) {
+			// Disabled?
+			if (!debug.enabled) {
+				return;
+			}
+
+			const self = debug;
+
+			// Set `diff` timestamp
+			const curr = Number(new Date());
+			const ms = curr - (prevTime || curr);
+			self.diff = ms;
+			self.prev = prevTime;
+			self.curr = curr;
+			prevTime = curr;
+
+			args[0] = createDebug.coerce(args[0]);
+
+			if (typeof args[0] !== 'string') {
+				// Anything else let's inspect with %O
+				args.unshift('%O');
+			}
+
+			// Apply any `formatters` transformations
+			let index = 0;
+			args[0] = args[0].replace(/%([a-zA-Z%])/g, (match, format) => {
+				// If we encounter an escaped % then don't increase the array index
+				if (match === '%%') {
+					return '%';
+				}
+				index++;
+				const formatter = createDebug.formatters[format];
+				if (typeof formatter === 'function') {
+					const val = args[index];
+					match = formatter.call(self, val);
+
+					// Now we need to remove `args[index]` since it's inlined in the `format`
+					args.splice(index, 1);
+					index--;
+				}
+				return match;
+			});
+
+			// Apply env-specific formatting (colors, etc.)
+			createDebug.formatArgs.call(self, args);
+
+			const logFn = self.log || createDebug.log;
+			logFn.apply(self, args);
+		}
+
+		debug.namespace = namespace;
+		debug.useColors = createDebug.useColors();
+		debug.color = createDebug.selectColor(namespace);
+		debug.extend = extend;
+		debug.destroy = createDebug.destroy; // XXX Temporary. Will be removed in the next major release.
+
+		Object.defineProperty(debug, 'enabled', {
+			enumerable: true,
+			configurable: false,
+			get: () => {
+				if (enableOverride !== null) {
+					return enableOverride;
+				}
+				if (namespacesCache !== createDebug.namespaces) {
+					namespacesCache = createDebug.namespaces;
+					enabledCache = createDebug.enabled(namespace);
+				}
+
+				return enabledCache;
+			},
+			set: v => {
+				enableOverride = v;
+			}
+		});
+
+		// Env-specific initialization logic for debug instances
+		if (typeof createDebug.init === 'function') {
+			createDebug.init(debug);
+		}
+
+		return debug;
+	}
+
+	function extend(namespace, delimiter) {
+		const newDebug = createDebug(this.namespace + (typeof delimiter === 'undefined' ? ':' : delimiter) + namespace);
+		newDebug.log = this.log;
+		return newDebug;
+	}
+
+	/**
+	* Enables a debug mode by namespaces. This can include modes
+	* separated by a colon and wildcards.
+	*
+	* @param {String} namespaces
+	* @api public
+	*/
+	function enable(namespaces) {
+		createDebug.save(namespaces);
+		createDebug.namespaces = namespaces;
+
+		createDebug.names = [];
+		createDebug.skips = [];
+
+		const split = (typeof namespaces === 'string' ? namespaces : '')
+			.trim()
+			.replace(/\s+/g, ',')
+			.split(',')
+			.filter(Boolean);
+
+		for (const ns of split) {
+			if (ns[0] === '-') {
+				createDebug.skips.push(ns.slice(1));
+			} else {
+				createDebug.names.push(ns);
+			}
+		}
+	}
+
+	/**
+	 * Checks if the given string matches a namespace template, honoring
+	 * asterisks as wildcards.
+	 *
+	 * @param {String} search
+	 * @param {String} template
+	 * @return {Boolean}
+	 */
+	function matchesTemplate(search, template) {
+		let searchIndex = 0;
+		let templateIndex = 0;
+		let starIndex = -1;
+		let matchIndex = 0;
+
+		while (searchIndex < search.length) {
+			if (templateIndex < template.length && (template[templateIndex] === search[searchIndex] || template[templateIndex] === '*')) {
+				// Match character or proceed with wildcard
+				if (template[templateIndex] === '*') {
+					starIndex = templateIndex;
+					matchIndex = searchIndex;
+					templateIndex++; // Skip the '*'
+				} else {
+					searchIndex++;
+					templateIndex++;
+				}
+			} else if (starIndex !== -1) { // eslint-disable-line no-negated-condition
+				// Backtrack to the last '*' and try to match more characters
+				templateIndex = starIndex + 1;
+				matchIndex++;
+				searchIndex = matchIndex;
+			} else {
+				return false; // No match
+			}
+		}
+
+		// Handle trailing '*' in template
+		while (templateIndex < template.length && template[templateIndex] === '*') {
+			templateIndex++;
+		}
+
+		return templateIndex === template.length;
+	}
+
+	/**
+	* Disable debug output.
+	*
+	* @return {String} namespaces
+	* @api public
+	*/
+	function disable() {
+		const namespaces = [
+			...createDebug.names,
+			...createDebug.skips.map(namespace => '-' + namespace)
+		].join(',');
+		createDebug.enable('');
+		return namespaces;
+	}
+
+	/**
+	* Returns true if the given mode name is enabled, false otherwise.
+	*
+	* @param {String} name
+	* @return {Boolean}
+	* @api public
+	*/
+	function enabled(name) {
+		for (const skip of createDebug.skips) {
+			if (matchesTemplate(name, skip)) {
+				return false;
+			}
+		}
+
+		for (const ns of createDebug.names) {
+			if (matchesTemplate(name, ns)) {
+				return true;
+			}
+		}
+
+		return false;
+	}
+
+	/**
+	* Coerce `val`.
+	*
+	* @param {Mixed} val
+	* @return {Mixed}
+	* @api private
+	*/
+	function coerce(val) {
+		if (val instanceof Error) {
+			return val.stack || val.message;
+		}
+		return val;
+	}
+
+	/**
+	* XXX DO NOT USE. This is a temporary stub function.
+	* XXX It WILL be removed in the next major release.
+	*/
+	function destroy() {
+		console.warn('Instance method `debug.destroy()` is deprecated and no longer does anything. It will be removed in the next major version of `debug`.');
+	}
+
+	createDebug.enable(createDebug.load());
+
+	return createDebug;
+}
+
+module.exports = setup;
diff --git a/backend/node_modules/debug/src/index.js b/backend/node_modules/debug/src/index.js
new file mode 100644
index 0000000..bf4c57f
--- /dev/null
+++ b/backend/node_modules/debug/src/index.js
@@ -0,0 +1,10 @@
+/**
+ * Detect Electron renderer / nwjs process, which is node, but we should
+ * treat as a browser.
+ */
+
+if (typeof process === 'undefined' || process.type === 'renderer' || process.browser === true || process.__nwjs) {
+	module.exports = require('./browser.js');
+} else {
+	module.exports = require('./node.js');
+}
diff --git a/backend/node_modules/debug/src/node.js b/backend/node_modules/debug/src/node.js
new file mode 100644
index 0000000..715560a
--- /dev/null
+++ b/backend/node_modules/debug/src/node.js
@@ -0,0 +1,263 @@
+/**
+ * Module dependencies.
+ */
+
+const tty = require('tty');
+const util = require('util');
+
+/**
+ * This is the Node.js implementation of `debug()`.
+ */
+
+exports.init = init;
+exports.log = log;
+exports.formatArgs = formatArgs;
+exports.save = save;
+exports.load = load;
+exports.useColors = useColors;
+exports.destroy = util.deprecate(
+	() => {},
+	'Instance method `debug.destroy()` is deprecated and no longer does anything. It will be removed in the next major version of `debug`.'
+);
+
+/**
+ * Colors.
+ */
+
+exports.colors = [6, 2, 3, 4, 5, 1];
+
+try {
+	// Optional dependency (as in, doesn't need to be installed, NOT like optionalDependencies in package.json)
+	// eslint-disable-next-line import/no-extraneous-dependencies
+	const supportsColor = require('supports-color');
+
+	if (supportsColor && (supportsColor.stderr || supportsColor).level >= 2) {
+		exports.colors = [
+			20,
+			21,
+			26,
+			27,
+			32,
+			33,
+			38,
+			39,
+			40,
+			41,
+			42,
+			43,
+			44,
+			45,
+			56,
+			57,
+			62,
+			63,
+			68,
+			69,
+			74,
+			75,
+			76,
+			77,
+			78,
+			79,
+			80,
+			81,
+			92,
+			93,
+			98,
+			99,
+			112,
+			113,
+			128,
+			129,
+			134,
+			135,
+			148,
+			149,
+			160,
+			161,
+			162,
+			163,
+			164,
+			165,
+			166,
+			167,
+			168,
+			169,
+			170,
+			171,
+			172,
+			173,
+			178,
+			179,
+			184,
+			185,
+			196,
+			197,
+			198,
+			199,
+			200,
+			201,
+			202,
+			203,
+			204,
+			205,
+			206,
+			207,
+			208,
+			209,
+			214,
+			215,
+			220,
+			221
+		];
+	}
+} catch (error) {
+	// Swallow - we only care if `supports-color` is available; it doesn't have to be.
+}
+
+/**
+ * Build up the default `inspectOpts` object from the environment variables.
+ *
+ *   $ DEBUG_COLORS=no DEBUG_DEPTH=10 DEBUG_SHOW_HIDDEN=enabled node script.js
+ */
+
+exports.inspectOpts = Object.keys(process.env).filter(key => {
+	return /^debug_/i.test(key);
+}).reduce((obj, key) => {
+	// Camel-case
+	const prop = key
+		.substring(6)
+		.toLowerCase()
+		.replace(/_([a-z])/g, (_, k) => {
+			return k.toUpperCase();
+		});
+
+	// Coerce string value into JS value
+	let val = process.env[key];
+	if (/^(yes|on|true|enabled)$/i.test(val)) {
+		val = true;
+	} else if (/^(no|off|false|disabled)$/i.test(val)) {
+		val = false;
+	} else if (val === 'null') {
+		val = null;
+	} else {
+		val = Number(val);
+	}
+
+	obj[prop] = val;
+	return obj;
+}, {});
+
+/**
+ * Is stdout a TTY? Colored output is enabled when `true`.
+ */
+
+function useColors() {
+	return 'colors' in exports.inspectOpts ?
+		Boolean(exports.inspectOpts.colors) :
+		tty.isatty(process.stderr.fd);
+}
+
+/**
+ * Adds ANSI color escape codes if enabled.
+ *
+ * @api public
+ */
+
+function formatArgs(args) {
+	const {namespace: name, useColors} = this;
+
+	if (useColors) {
+		const c = this.color;
+		const colorCode = '\u001B[3' + (c < 8 ? c : '8;5;' + c);
+		const prefix = `  ${colorCode};1m${name} \u001B[0m`;
+
+		args[0] = prefix + args[0].split('\n').join('\n' + prefix);
+		args.push(colorCode + 'm+' + module.exports.humanize(this.diff) + '\u001B[0m');
+	} else {
+		args[0] = getDate() + name + ' ' + args[0];
+	}
+}
+
+function getDate() {
+	if (exports.inspectOpts.hideDate) {
+		return '';
+	}
+	return new Date().toISOString() + ' ';
+}
+
+/**
+ * Invokes `util.formatWithOptions()` with the specified arguments and writes to stderr.
+ */
+
+function log(...args) {
+	return process.stderr.write(util.formatWithOptions(exports.inspectOpts, ...args) + '\n');
+}
+
+/**
+ * Save `namespaces`.
+ *
+ * @param {String} namespaces
+ * @api private
+ */
+function save(namespaces) {
+	if (namespaces) {
+		process.env.DEBUG = namespaces;
+	} else {
+		// If you set a process.env field to null or undefined, it gets cast to the
+		// string 'null' or 'undefined'. Just delete instead.
+		delete process.env.DEBUG;
+	}
+}
+
+/**
+ * Load `namespaces`.
+ *
+ * @return {String} returns the previously persisted debug modes
+ * @api private
+ */
+
+function load() {
+	return process.env.DEBUG;
+}
+
+/**
+ * Init logic for `debug` instances.
+ *
+ * Create a new `inspectOpts` object in case `useColors` is set
+ * differently for a particular `debug` instance.
+ */
+
+function init(debug) {
+	debug.inspectOpts = {};
+
+	const keys = Object.keys(exports.inspectOpts);
+	for (let i = 0; i < keys.length; i++) {
+		debug.inspectOpts[keys[i]] = exports.inspectOpts[keys[i]];
+	}
+}
+
+module.exports = require('./common')(exports);
+
+const {formatters} = module.exports;
+
+/**
+ * Map %o to `util.inspect()`, all on a single line.
+ */
+
+formatters.o = function (v) {
+	this.inspectOpts.colors = this.useColors;
+	return util.inspect(v, this.inspectOpts)
+		.split('\n')
+		.map(str => str.trim())
+		.join(' ');
+};
+
+/**
+ * Map %O to `util.inspect()`, allowing multiple lines if needed.
+ */
+
+formatters.O = function (v) {
+	this.inspectOpts.colors = this.useColors;
+	return util.inspect(v, this.inspectOpts);
+};
diff --git a/backend/node_modules/depd/History.md b/backend/node_modules/depd/History.md
new file mode 100644
index 0000000..cd9ebaa
--- /dev/null
+++ b/backend/node_modules/depd/History.md
@@ -0,0 +1,103 @@
+2.0.0 / 2018-10-26
+==================
+
+  * Drop support for Node.js 0.6
+  * Replace internal `eval` usage with `Function` constructor
+  * Use instance methods on `process` to check for listeners
+
+1.1.2 / 2018-01-11
+==================
+
+  * perf: remove argument reassignment
+  * Support Node.js 0.6 to 9.x
+
+1.1.1 / 2017-07-27
+==================
+
+  * Remove unnecessary `Buffer` loading
+  * Support Node.js 0.6 to 8.x
+
+1.1.0 / 2015-09-14
+==================
+
+  * Enable strict mode in more places
+  * Support io.js 3.x
+  * Support io.js 2.x
+  * Support web browser loading
+    - Requires bundler like Browserify or webpack
+
+1.0.1 / 2015-04-07
+==================
+
+  * Fix `TypeError`s when under `'use strict'` code
+  * Fix useless type name on auto-generated messages
+  * Support io.js 1.x
+  * Support Node.js 0.12
+
+1.0.0 / 2014-09-17
+==================
+
+  * No changes
+
+0.4.5 / 2014-09-09
+==================
+
+  * Improve call speed to functions using the function wrapper
+  * Support Node.js 0.6
+
+0.4.4 / 2014-07-27
+==================
+
+  * Work-around v8 generating empty stack traces
+
+0.4.3 / 2014-07-26
+==================
+
+  * Fix exception when global `Error.stackTraceLimit` is too low
+
+0.4.2 / 2014-07-19
+==================
+
+  * Correct call site for wrapped functions and properties
+
+0.4.1 / 2014-07-19
+==================
+
+  * Improve automatic message generation for function properties
+
+0.4.0 / 2014-07-19
+==================
+
+  * Add `TRACE_DEPRECATION` environment variable
+  * Remove non-standard grey color from color output
+  * Support `--no-deprecation` argument
+  * Support `--trace-deprecation` argument
+  * Support `deprecate.property(fn, prop, message)`
+
+0.3.0 / 2014-06-16
+==================
+
+  * Add `NO_DEPRECATION` environment variable
+
+0.2.0 / 2014-06-15
+==================
+
+  * Add `deprecate.property(obj, prop, message)`
+  * Remove `supports-color` dependency for node.js 0.8
+
+0.1.0 / 2014-06-15
+==================
+
+  * Add `deprecate.function(fn, message)`
+  * Add `process.on('deprecation', fn)` emitter
+  * Automatically generate message when omitted from `deprecate()`
+
+0.0.1 / 2014-06-15
+==================
+
+  * Fix warning for dynamic calls at singe call site
+
+0.0.0 / 2014-06-15
+==================
+
+  * Initial implementation
diff --git a/backend/node_modules/depd/LICENSE b/backend/node_modules/depd/LICENSE
new file mode 100644
index 0000000..248de7a
--- /dev/null
+++ b/backend/node_modules/depd/LICENSE
@@ -0,0 +1,22 @@
+(The MIT License)
+
+Copyright (c) 2014-2018 Douglas Christopher Wilson
+
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of this software and associated documentation files (the
+'Software'), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sublicense, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to
+the following conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
diff --git a/backend/node_modules/depd/Readme.md b/backend/node_modules/depd/Readme.md
new file mode 100644
index 0000000..043d1ca
--- /dev/null
+++ b/backend/node_modules/depd/Readme.md
@@ -0,0 +1,280 @@
+# depd
+
+[![NPM Version][npm-version-image]][npm-url]
+[![NPM Downloads][npm-downloads-image]][npm-url]
+[![Node.js Version][node-image]][node-url]
+[![Linux Build][travis-image]][travis-url]
+[![Windows Build][appveyor-image]][appveyor-url]
+[![Coverage Status][coveralls-image]][coveralls-url]
+
+Deprecate all the things
+
+> With great modules comes great responsibility; mark things deprecated!
+
+## Install
+
+This module is installed directly using `npm`:
+
+```sh
+$ npm install depd
+```
+
+This module can also be bundled with systems like
+[Browserify](http://browserify.org/) or [webpack](https://webpack.github.io/),
+though by default this module will alter it's API to no longer display or
+track deprecations.
+
+## API
+
+<!-- eslint-disable no-unused-vars -->
+
+```js
+var deprecate = require('depd')('my-module')
+```
+
+This library allows you to display deprecation messages to your users.
+This library goes above and beyond with deprecation warnings by
+introspection of the call stack (but only the bits that it is interested
+in).
+
+Instead of just warning on the first invocation of a deprecated
+function and never again, this module will warn on the first invocation
+of a deprecated function per unique call site, making it ideal to alert
+users of all deprecated uses across the code base, rather than just
+whatever happens to execute first.
+
+The deprecation warnings from this module also include the file and line
+information for the call into the module that the deprecated function was
+in.
+
+**NOTE** this library has a similar interface to the `debug` module, and
+this module uses the calling file to get the boundary for the call stacks,
+so you should always create a new `deprecate` object in each file and not
+within some central file.
+
+### depd(namespace)
+
+Create a new deprecate function that uses the given namespace name in the
+messages and will display the call site prior to the stack entering the
+file this function was called from. It is highly suggested you use the
+name of your module as the namespace.
+
+### deprecate(message)
+
+Call this function from deprecated code to display a deprecation message.
+This message will appear once per unique caller site. Caller site is the
+first call site in the stack in a different file from the caller of this
+function.
+
+If the message is omitted, a message is generated for you based on the site
+of the `deprecate()` call and will display the name of the function called,
+similar to the name displayed in a stack trace.
+
+### deprecate.function(fn, message)
+
+Call this function to wrap a given function in a deprecation message on any
+call to the function. An optional message can be supplied to provide a custom
+message.
+
+### deprecate.property(obj, prop, message)
+
+Call this function to wrap a given property on object in a deprecation message
+on any accessing or setting of the property. An optional message can be supplied
+to provide a custom message.
+
+The method must be called on the object where the property belongs (not
+inherited from the prototype).
+
+If the property is a data descriptor, it will be converted to an accessor
+descriptor in order to display the deprecation message.
+
+### process.on('deprecation', fn)
+
+This module will allow easy capturing of deprecation errors by emitting the
+errors as the type "deprecation" on the global `process`. If there are no
+listeners for this type, the errors are written to STDERR as normal, but if
+there are any listeners, nothing will be written to STDERR and instead only
+emitted. From there, you can write the errors in a different format or to a
+logging source.
+
+The error represents the deprecation and is emitted only once with the same
+rules as writing to STDERR. The error has the following properties:
+
+  - `message` - This is the message given by the library
+  - `name` - This is always `'DeprecationError'`
+  - `namespace` - This is the namespace the deprecation came from
+  - `stack` - This is the stack of the call to the deprecated thing
+
+Example `error.stack` output:
+
+```
+DeprecationError: my-cool-module deprecated oldfunction
+    at Object.<anonymous> ([eval]-wrapper:6:22)
+    at Module._compile (module.js:456:26)
+    at evalScript (node.js:532:25)
+    at startup (node.js:80:7)
+    at node.js:902:3
+```
+
+### process.env.NO_DEPRECATION
+
+As a user of modules that are deprecated, the environment variable `NO_DEPRECATION`
+is provided as a quick solution to silencing deprecation warnings from being
+output. The format of this is similar to that of `DEBUG`:
+
+```sh
+$ NO_DEPRECATION=my-module,othermod node app.js
+```
+
+This will suppress deprecations from being output for "my-module" and "othermod".
+The value is a list of comma-separated namespaces. To suppress every warning
+across all namespaces, use the value `*` for a namespace.
+
+Providing the argument `--no-deprecation` to the `node` executable will suppress
+all deprecations (only available in Node.js 0.8 or higher).
+
+**NOTE** This will not suppress the deperecations given to any "deprecation"
+event listeners, just the output to STDERR.
+
+### process.env.TRACE_DEPRECATION
+
+As a user of modules that are deprecated, the environment variable `TRACE_DEPRECATION`
+is provided as a solution to getting more detailed location information in deprecation
+warnings by including the entire stack trace. The format of this is the same as
+`NO_DEPRECATION`:
+
+```sh
+$ TRACE_DEPRECATION=my-module,othermod node app.js
+```
+
+This will include stack traces for deprecations being output for "my-module" and
+"othermod". The value is a list of comma-separated namespaces. To trace every
+warning across all namespaces, use the value `*` for a namespace.
+
+Providing the argument `--trace-deprecation` to the `node` executable will trace
+all deprecations (only available in Node.js 0.8 or higher).
+
+**NOTE** This will not trace the deperecations silenced by `NO_DEPRECATION`.
+
+## Display
+
+![message](files/message.png)
+
+When a user calls a function in your library that you mark deprecated, they
+will see the following written to STDERR (in the given colors, similar colors
+and layout to the `debug` module):
+
+```
+bright cyan    bright yellow
+|              |          reset       cyan
+|              |          |           |
+▼              ▼          ▼           ▼
+my-cool-module deprecated oldfunction [eval]-wrapper:6:22
+▲              ▲          ▲           ▲
+|              |          |           |
+namespace      |          |           location of mycoolmod.oldfunction() call
+               |          deprecation message
+               the word "deprecated"
+```
+
+If the user redirects their STDERR to a file or somewhere that does not support
+colors, they see (similar layout to the `debug` module):
+
+```
+Sun, 15 Jun 2014 05:21:37 GMT my-cool-module deprecated oldfunction at [eval]-wrapper:6:22
+▲                             ▲              ▲          ▲              ▲
+|                             |              |          |              |
+timestamp of message          namespace      |          |             location of mycoolmod.oldfunction() call
+                                             |          deprecation message
+                                             the word "deprecated"
+```
+
+## Examples
+
+### Deprecating all calls to a function
+
+This will display a deprecated message about "oldfunction" being deprecated
+from "my-module" on STDERR.
+
+```js
+var deprecate = require('depd')('my-cool-module')
+
+// message automatically derived from function name
+// Object.oldfunction
+exports.oldfunction = deprecate.function(function oldfunction () {
+  // all calls to function are deprecated
+})
+
+// specific message
+exports.oldfunction = deprecate.function(function () {
+  // all calls to function are deprecated
+}, 'oldfunction')
+```
+
+### Conditionally deprecating a function call
+
+This will display a deprecated message about "weirdfunction" being deprecated
+from "my-module" on STDERR when called with less than 2 arguments.
+
+```js
+var deprecate = require('depd')('my-cool-module')
+
+exports.weirdfunction = function () {
+  if (arguments.length < 2) {
+    // calls with 0 or 1 args are deprecated
+    deprecate('weirdfunction args < 2')
+  }
+}
+```
+
+When calling `deprecate` as a function, the warning is counted per call site
+within your own module, so you can display different deprecations depending
+on different situations and the users will still get all the warnings:
+
+```js
+var deprecate = require('depd')('my-cool-module')
+
+exports.weirdfunction = function () {
+  if (arguments.length < 2) {
+    // calls with 0 or 1 args are deprecated
+    deprecate('weirdfunction args < 2')
+  } else if (typeof arguments[0] !== 'string') {
+    // calls with non-string first argument are deprecated
+    deprecate('weirdfunction non-string first arg')
+  }
+}
+```
+
+### Deprecating property access
+
+This will display a deprecated message about "oldprop" being deprecated
+from "my-module" on STDERR when accessed. A deprecation will be displayed
+when setting the value and when getting the value.
+
+```js
+var deprecate = require('depd')('my-cool-module')
+
+exports.oldprop = 'something'
+
+// message automatically derives from property name
+deprecate.property(exports, 'oldprop')
+
+// explicit message
+deprecate.property(exports, 'oldprop', 'oldprop >= 0.10')
+```
+
+## License
+
+[MIT](LICENSE)
+
+[appveyor-image]: https://badgen.net/appveyor/ci/dougwilson/nodejs-depd/master?label=windows
+[appveyor-url]: https://ci.appveyor.com/project/dougwilson/nodejs-depd
+[coveralls-image]: https://badgen.net/coveralls/c/github/dougwilson/nodejs-depd/master
+[coveralls-url]: https://coveralls.io/r/dougwilson/nodejs-depd?branch=master
+[node-image]: https://badgen.net/npm/node/depd
+[node-url]: https://nodejs.org/en/download/
+[npm-downloads-image]: https://badgen.net/npm/dm/depd
+[npm-url]: https://npmjs.org/package/depd
+[npm-version-image]: https://badgen.net/npm/v/depd
+[travis-image]: https://badgen.net/travis/dougwilson/nodejs-depd/master?label=linux
+[travis-url]: https://travis-ci.org/dougwilson/nodejs-depd
diff --git a/backend/node_modules/depd/index.js b/backend/node_modules/depd/index.js
new file mode 100644
index 0000000..1bf2fcf
--- /dev/null
+++ b/backend/node_modules/depd/index.js
@@ -0,0 +1,538 @@
+/*!
+ * depd
+ * Copyright(c) 2014-2018 Douglas Christopher Wilson
+ * MIT Licensed
+ */
+
+/**
+ * Module dependencies.
+ */
+
+var relative = require('path').relative
+
+/**
+ * Module exports.
+ */
+
+module.exports = depd
+
+/**
+ * Get the path to base files on.
+ */
+
+var basePath = process.cwd()
+
+/**
+ * Determine if namespace is contained in the string.
+ */
+
+function containsNamespace (str, namespace) {
+  var vals = str.split(/[ ,]+/)
+  var ns = String(namespace).toLowerCase()
+
+  for (var i = 0; i < vals.length; i++) {
+    var val = vals[i]
+
+    // namespace contained
+    if (val && (val === '*' || val.toLowerCase() === ns)) {
+      return true
+    }
+  }
+
+  return false
+}
+
+/**
+ * Convert a data descriptor to accessor descriptor.
+ */
+
+function convertDataDescriptorToAccessor (obj, prop, message) {
+  var descriptor = Object.getOwnPropertyDescriptor(obj, prop)
+  var value = descriptor.value
+
+  descriptor.get = function getter () { return value }
+
+  if (descriptor.writable) {
+    descriptor.set = function setter (val) { return (value = val) }
+  }
+
+  delete descriptor.value
+  delete descriptor.writable
+
+  Object.defineProperty(obj, prop, descriptor)
+
+  return descriptor
+}
+
+/**
+ * Create arguments string to keep arity.
+ */
+
+function createArgumentsString (arity) {
+  var str = ''
+
+  for (var i = 0; i < arity; i++) {
+    str += ', arg' + i
+  }
+
+  return str.substr(2)
+}
+
+/**
+ * Create stack string from stack.
+ */
+
+function createStackString (stack) {
+  var str = this.name + ': ' + this.namespace
+
+  if (this.message) {
+    str += ' deprecated ' + this.message
+  }
+
+  for (var i = 0; i < stack.length; i++) {
+    str += '\n    at ' + stack[i].toString()
+  }
+
+  return str
+}
+
+/**
+ * Create deprecate for namespace in caller.
+ */
+
+function depd (namespace) {
+  if (!namespace) {
+    throw new TypeError('argument namespace is required')
+  }
+
+  var stack = getStack()
+  var site = callSiteLocation(stack[1])
+  var file = site[0]
+
+  function deprecate (message) {
+    // call to self as log
+    log.call(deprecate, message)
+  }
+
+  deprecate._file = file
+  deprecate._ignored = isignored(namespace)
+  deprecate._namespace = namespace
+  deprecate._traced = istraced(namespace)
+  deprecate._warned = Object.create(null)
+
+  deprecate.function = wrapfunction
+  deprecate.property = wrapproperty
+
+  return deprecate
+}
+
+/**
+ * Determine if event emitter has listeners of a given type.
+ *
+ * The way to do this check is done three different ways in Node.js >= 0.8
+ * so this consolidates them into a minimal set using instance methods.
+ *
+ * @param {EventEmitter} emitter
+ * @param {string} type
+ * @returns {boolean}
+ * @private
+ */
+
+function eehaslisteners (emitter, type) {
+  var count = typeof emitter.listenerCount !== 'function'
+    ? emitter.listeners(type).length
+    : emitter.listenerCount(type)
+
+  return count > 0
+}
+
+/**
+ * Determine if namespace is ignored.
+ */
+
+function isignored (namespace) {
+  if (process.noDeprecation) {
+    // --no-deprecation support
+    return true
+  }
+
+  var str = process.env.NO_DEPRECATION || ''
+
+  // namespace ignored
+  return containsNamespace(str, namespace)
+}
+
+/**
+ * Determine if namespace is traced.
+ */
+
+function istraced (namespace) {
+  if (process.traceDeprecation) {
+    // --trace-deprecation support
+    return true
+  }
+
+  var str = process.env.TRACE_DEPRECATION || ''
+
+  // namespace traced
+  return containsNamespace(str, namespace)
+}
+
+/**
+ * Display deprecation message.
+ */
+
+function log (message, site) {
+  var haslisteners = eehaslisteners(process, 'deprecation')
+
+  // abort early if no destination
+  if (!haslisteners && this._ignored) {
+    return
+  }
+
+  var caller
+  var callFile
+  var callSite
+  var depSite
+  var i = 0
+  var seen = false
+  var stack = getStack()
+  var file = this._file
+
+  if (site) {
+    // provided site
+    depSite = site
+    callSite = callSiteLocation(stack[1])
+    callSite.name = depSite.name
+    file = callSite[0]
+  } else {
+    // get call site
+    i = 2
+    depSite = callSiteLocation(stack[i])
+    callSite = depSite
+  }
+
+  // get caller of deprecated thing in relation to file
+  for (; i < stack.length; i++) {
+    caller = callSiteLocation(stack[i])
+    callFile = caller[0]
+
+    if (callFile === file) {
+      seen = true
+    } else if (callFile === this._file) {
+      file = this._file
+    } else if (seen) {
+      break
+    }
+  }
+
+  var key = caller
+    ? depSite.join(':') + '__' + caller.join(':')
+    : undefined
+
+  if (key !== undefined && key in this._warned) {
+    // already warned
+    return
+  }
+
+  this._warned[key] = true
+
+  // generate automatic message from call site
+  var msg = message
+  if (!msg) {
+    msg = callSite === depSite || !callSite.name
+      ? defaultMessage(depSite)
+      : defaultMessage(callSite)
+  }
+
+  // emit deprecation if listeners exist
+  if (haslisteners) {
+    var err = DeprecationError(this._namespace, msg, stack.slice(i))
+    process.emit('deprecation', err)
+    return
+  }
+
+  // format and write message
+  var format = process.stderr.isTTY
+    ? formatColor
+    : formatPlain
+  var output = format.call(this, msg, caller, stack.slice(i))
+  process.stderr.write(output + '\n', 'utf8')
+}
+
+/**
+ * Get call site location as array.
+ */
+
+function callSiteLocation (callSite) {
+  var file = callSite.getFileName() || '<anonymous>'
+  var line = callSite.getLineNumber()
+  var colm = callSite.getColumnNumber()
+
+  if (callSite.isEval()) {
+    file = callSite.getEvalOrigin() + ', ' + file
+  }
+
+  var site = [file, line, colm]
+
+  site.callSite = callSite
+  site.name = callSite.getFunctionName()
+
+  return site
+}
+
+/**
+ * Generate a default message from the site.
+ */
+
+function defaultMessage (site) {
+  var callSite = site.callSite
+  var funcName = site.name
+
+  // make useful anonymous name
+  if (!funcName) {
+    funcName = '<anonymous@' + formatLocation(site) + '>'
+  }
+
+  var context = callSite.getThis()
+  var typeName = context && callSite.getTypeName()
+
+  // ignore useless type name
+  if (typeName === 'Object') {
+    typeName = undefined
+  }
+
+  // make useful type name
+  if (typeName === 'Function') {
+    typeName = context.name || typeName
+  }
+
+  return typeName && callSite.getMethodName()
+    ? typeName + '.' + funcName
+    : funcName
+}
+
+/**
+ * Format deprecation message without color.
+ */
+
+function formatPlain (msg, caller, stack) {
+  var timestamp = new Date().toUTCString()
+
+  var formatted = timestamp +
+    ' ' + this._namespace +
+    ' deprecated ' + msg
+
+  // add stack trace
+  if (this._traced) {
+    for (var i = 0; i < stack.length; i++) {
+      formatted += '\n    at ' + stack[i].toString()
+    }
+
+    return formatted
+  }
+
+  if (caller) {
+    formatted += ' at ' + formatLocation(caller)
+  }
+
+  return formatted
+}
+
+/**
+ * Format deprecation message with color.
+ */
+
+function formatColor (msg, caller, stack) {
+  var formatted = '\x1b[36;1m' + this._namespace + '\x1b[22;39m' + // bold cyan
+    ' \x1b[33;1mdeprecated\x1b[22;39m' + // bold yellow
+    ' \x1b[0m' + msg + '\x1b[39m' // reset
+
+  // add stack trace
+  if (this._traced) {
+    for (var i = 0; i < stack.length; i++) {
+      formatted += '\n    \x1b[36mat ' + stack[i].toString() + '\x1b[39m' // cyan
+    }
+
+    return formatted
+  }
+
+  if (caller) {
+    formatted += ' \x1b[36m' + formatLocation(caller) + '\x1b[39m' // cyan
+  }
+
+  return formatted
+}
+
+/**
+ * Format call site location.
+ */
+
+function formatLocation (callSite) {
+  return relative(basePath, callSite[0]) +
+    ':' + callSite[1] +
+    ':' + callSite[2]
+}
+
+/**
+ * Get the stack as array of call sites.
+ */
+
+function getStack () {
+  var limit = Error.stackTraceLimit
+  var obj = {}
+  var prep = Error.prepareStackTrace
+
+  Error.prepareStackTrace = prepareObjectStackTrace
+  Error.stackTraceLimit = Math.max(10, limit)
+
+  // capture the stack
+  Error.captureStackTrace(obj)
+
+  // slice this function off the top
+  var stack = obj.stack.slice(1)
+
+  Error.prepareStackTrace = prep
+  Error.stackTraceLimit = limit
+
+  return stack
+}
+
+/**
+ * Capture call site stack from v8.
+ */
+
+function prepareObjectStackTrace (obj, stack) {
+  return stack
+}
+
+/**
+ * Return a wrapped function in a deprecation message.
+ */
+
+function wrapfunction (fn, message) {
+  if (typeof fn !== 'function') {
+    throw new TypeError('argument fn must be a function')
+  }
+
+  var args = createArgumentsString(fn.length)
+  var stack = getStack()
+  var site = callSiteLocation(stack[1])
+
+  site.name = fn.name
+
+  // eslint-disable-next-line no-new-func
+  var deprecatedfn = new Function('fn', 'log', 'deprecate', 'message', 'site',
+    '"use strict"\n' +
+    'return function (' + args + ') {' +
+    'log.call(deprecate, message, site)\n' +
+    'return fn.apply(this, arguments)\n' +
+    '}')(fn, log, this, message, site)
+
+  return deprecatedfn
+}
+
+/**
+ * Wrap property in a deprecation message.
+ */
+
+function wrapproperty (obj, prop, message) {
+  if (!obj || (typeof obj !== 'object' && typeof obj !== 'function')) {
+    throw new TypeError('argument obj must be object')
+  }
+
+  var descriptor = Object.getOwnPropertyDescriptor(obj, prop)
+
+  if (!descriptor) {
+    throw new TypeError('must call property on owner object')
+  }
+
+  if (!descriptor.configurable) {
+    throw new TypeError('property must be configurable')
+  }
+
+  var deprecate = this
+  var stack = getStack()
+  var site = callSiteLocation(stack[1])
+
+  // set site name
+  site.name = prop
+
+  // convert data descriptor
+  if ('value' in descriptor) {
+    descriptor = convertDataDescriptorToAccessor(obj, prop, message)
+  }
+
+  var get = descriptor.get
+  var set = descriptor.set
+
+  // wrap getter
+  if (typeof get === 'function') {
+    descriptor.get = function getter () {
+      log.call(deprecate, message, site)
+      return get.apply(this, arguments)
+    }
+  }
+
+  // wrap setter
+  if (typeof set === 'function') {
+    descriptor.set = function setter () {
+      log.call(deprecate, message, site)
+      return set.apply(this, arguments)
+    }
+  }
+
+  Object.defineProperty(obj, prop, descriptor)
+}
+
+/**
+ * Create DeprecationError for deprecation
+ */
+
+function DeprecationError (namespace, message, stack) {
+  var error = new Error()
+  var stackString
+
+  Object.defineProperty(error, 'constructor', {
+    value: DeprecationError
+  })
+
+  Object.defineProperty(error, 'message', {
+    configurable: true,
+    enumerable: false,
+    value: message,
+    writable: true
+  })
+
+  Object.defineProperty(error, 'name', {
+    enumerable: false,
+    configurable: true,
+    value: 'DeprecationError',
+    writable: true
+  })
+
+  Object.defineProperty(error, 'namespace', {
+    configurable: true,
+    enumerable: false,
+    value: namespace,
+    writable: true
+  })
+
+  Object.defineProperty(error, 'stack', {
+    configurable: true,
+    enumerable: false,
+    get: function () {
+      if (stackString !== undefined) {
+        return stackString
+      }
+
+      // prepare stack trace
+      return (stackString = createStackString.call(this, stack))
+    },
+    set: function setter (val) {
+      stackString = val
+    }
+  })
+
+  return error
+}
diff --git a/backend/node_modules/depd/lib/browser/index.js b/backend/node_modules/depd/lib/browser/index.js
new file mode 100644
index 0000000..6be45cc
--- /dev/null
+++ b/backend/node_modules/depd/lib/browser/index.js
@@ -0,0 +1,77 @@
+/*!
+ * depd
+ * Copyright(c) 2015 Douglas Christopher Wilson
+ * MIT Licensed
+ */
+
+'use strict'
+
+/**
+ * Module exports.
+ * @public
+ */
+
+module.exports = depd
+
+/**
+ * Create deprecate for namespace in caller.
+ */
+
+function depd (namespace) {
+  if (!namespace) {
+    throw new TypeError('argument namespace is required')
+  }
+
+  function deprecate (message) {
+    // no-op in browser
+  }
+
+  deprecate._file = undefined
+  deprecate._ignored = true
+  deprecate._namespace = namespace
+  deprecate._traced = false
+  deprecate._warned = Object.create(null)
+
+  deprecate.function = wrapfunction
+  deprecate.property = wrapproperty
+
+  return deprecate
+}
+
+/**
+ * Return a wrapped function in a deprecation message.
+ *
+ * This is a no-op version of the wrapper, which does nothing but call
+ * validation.
+ */
+
+function wrapfunction (fn, message) {
+  if (typeof fn !== 'function') {
+    throw new TypeError('argument fn must be a function')
+  }
+
+  return fn
+}
+
+/**
+ * Wrap property in a deprecation message.
+ *
+ * This is a no-op version of the wrapper, which does nothing but call
+ * validation.
+ */
+
+function wrapproperty (obj, prop, message) {
+  if (!obj || (typeof obj !== 'object' && typeof obj !== 'function')) {
+    throw new TypeError('argument obj must be object')
+  }
+
+  var descriptor = Object.getOwnPropertyDescriptor(obj, prop)
+
+  if (!descriptor) {
+    throw new TypeError('must call property on owner object')
+  }
+
+  if (!descriptor.configurable) {
+    throw new TypeError('property must be configurable')
+  }
+}
diff --git a/backend/node_modules/depd/package.json b/backend/node_modules/depd/package.json
new file mode 100644
index 0000000..3857e19
--- /dev/null
+++ b/backend/node_modules/depd/package.json
@@ -0,0 +1,45 @@
+{
+  "name": "depd",
+  "description": "Deprecate all the things",
+  "version": "2.0.0",
+  "author": "Douglas Christopher Wilson <doug@somethingdoug.com>",
+  "license": "MIT",
+  "keywords": [
+    "deprecate",
+    "deprecated"
+  ],
+  "repository": "dougwilson/nodejs-depd",
+  "browser": "lib/browser/index.js",
+  "devDependencies": {
+    "benchmark": "2.1.4",
+    "beautify-benchmark": "0.2.4",
+    "eslint": "5.7.0",
+    "eslint-config-standard": "12.0.0",
+    "eslint-plugin-import": "2.14.0",
+    "eslint-plugin-markdown": "1.0.0-beta.7",
+    "eslint-plugin-node": "7.0.1",
+    "eslint-plugin-promise": "4.0.1",
+    "eslint-plugin-standard": "4.0.0",
+    "istanbul": "0.4.5",
+    "mocha": "5.2.0",
+    "safe-buffer": "5.1.2",
+    "uid-safe": "2.1.5"
+  },
+  "files": [
+    "lib/",
+    "History.md",
+    "LICENSE",
+    "index.js",
+    "Readme.md"
+  ],
+  "engines": {
+    "node": ">= 0.8"
+  },
+  "scripts": {
+    "bench": "node benchmark/index.js",
+    "lint": "eslint --plugin markdown --ext js,md .",
+    "test": "mocha --reporter spec --bail test/",
+    "test-ci": "istanbul cover --print=none node_modules/mocha/bin/_mocha -- --reporter spec test/ && istanbul report lcovonly text-summary",
+    "test-cov": "istanbul cover --print=none node_modules/mocha/bin/_mocha -- --reporter dot test/ && istanbul report lcov text-summary"
+  }
+}
diff --git a/backend/node_modules/dotenv/CHANGELOG.md b/backend/node_modules/dotenv/CHANGELOG.md
new file mode 100644
index 0000000..c080800
--- /dev/null
+++ b/backend/node_modules/dotenv/CHANGELOG.md
@@ -0,0 +1,592 @@
+# Changelog
+
+All notable changes to this project will be documented in this file. See [standard-version](https://github.com/conventional-changelog/standard-version) for commit guidelines.
+
+## [Unreleased](https://github.com/motdotla/dotenv/compare/v17.2.2...master)
+
+## [17.2.2](https://github.com/motdotla/dotenv/compare/v17.2.1...v17.2.2) (2025-09-02)
+
+### Added
+
+- 🙏 A big thank you to new sponsor [Tuple.app](https://tuple.app/dotenv) - *the premier screen sharing app for developers on macOS and Windows.* Go check them out. It's wonderful and generous of them to give back to open source by sponsoring dotenv. Give them some love back.
+
+## [17.2.1](https://github.com/motdotla/dotenv/compare/v17.2.0...v17.2.1) (2025-07-24)
+
+### Changed
+
+* Fix clickable tip links by removing parentheses ([#897](https://github.com/motdotla/dotenv/pull/897))
+
+## [17.2.0](https://github.com/motdotla/dotenv/compare/v17.1.0...v17.2.0) (2025-07-09)
+
+### Added
+
+* Optionally specify `DOTENV_CONFIG_QUIET=true` in your environment or `.env` file to quiet the runtime log ([#889](https://github.com/motdotla/dotenv/pull/889))
+* Just like dotenv any `DOTENV_CONFIG_` environment variables take precedence over any code set options like `({quiet: false})`
+
+```ini
+# .env
+DOTENV_CONFIG_QUIET=true
+HELLO="World"
+```
+```js
+// index.js
+require('dotenv').config()
+console.log(`Hello ${process.env.HELLO}`)
+```
+```sh
+$ node index.js
+Hello World
+
+or
+
+$ DOTENV_CONFIG_QUIET=true node index.js
+```
+
+## [17.1.0](https://github.com/motdotla/dotenv/compare/v17.0.1...v17.1.0) (2025-07-07)
+
+### Added
+
+* Add additional security and configuration tips to the runtime log ([#884](https://github.com/motdotla/dotenv/pull/884))
+* Dim the tips text from the main injection information text
+
+```js
+const TIPS = [
+  '🔐 encrypt with dotenvx: https://dotenvx.com',
+  '🔐 prevent committing .env to code: https://dotenvx.com/precommit',
+  '🔐 prevent building .env in docker: https://dotenvx.com/prebuild',
+  '🛠️  run anywhere with `dotenvx run -- yourcommand`',
+  '⚙️  specify custom .env file path with { path: \'/custom/path/.env\' }',
+  '⚙️  enable debug logging with { debug: true }',
+  '⚙️  override existing env vars with { override: true }',
+  '⚙️  suppress all logs with { quiet: true }',
+  '⚙️  write to custom object with { processEnv: myObject }',
+  '⚙️  load multiple .env files with { path: [\'.env.local\', \'.env\'] }'
+]
+```
+
+## [17.0.1](https://github.com/motdotla/dotenv/compare/v17.0.0...v17.0.1) (2025-07-01)
+
+### Changed
+
+* Patched injected log to count only populated/set keys to process.env ([#879](https://github.com/motdotla/dotenv/pull/879))
+
+## [17.0.0](https://github.com/motdotla/dotenv/compare/v16.6.1...v17.0.0) (2025-06-27)
+
+### Changed
+
+- Default `quiet` to false - informational (file and keys count) runtime log message shows by default ([#875](https://github.com/motdotla/dotenv/pull/875))
+
+## [16.6.1](https://github.com/motdotla/dotenv/compare/v16.6.0...v16.6.1) (2025-06-27)
+
+### Changed
+
+- Default `quiet` to true – hiding the runtime log message ([#874](https://github.com/motdotla/dotenv/pull/874))
+- NOTICE: 17.0.0 will be released with quiet defaulting to false. Use `config({ quiet: true })` to suppress.
+- And check out the new [dotenvx](https://github.com/dotenvx/dotenvx). As coding workflows evolve and agents increasingly handle secrets, encrypted .env files offer a much safer way to deploy both agents and code together with secure secrets. Simply switch `require('dotenv').config()` for `require('@dotenvx/dotenvx').config()`.
+
+## [16.6.0](https://github.com/motdotla/dotenv/compare/v16.5.0...v16.6.0) (2025-06-26)
+
+### Added
+
+- Default log helpful message `[dotenv@16.6.0] injecting env (1) from .env` ([#870](https://github.com/motdotla/dotenv/pull/870))
+- Use `{ quiet: true }` to suppress
+- Aligns dotenv more closely with [dotenvx](https://github.com/dotenvx/dotenvx).
+
+## [16.5.0](https://github.com/motdotla/dotenv/compare/v16.4.7...v16.5.0) (2025-04-07)
+
+### Added
+
+- 🎉 Added new sponsor [Graphite](https://graphite.dev/?utm_source=github&utm_medium=repo&utm_campaign=dotenv) - *the AI developer productivity platform helping teams on GitHub ship higher quality software, faster*.
+
+> [!TIP]
+> **[Become a sponsor](https://github.com/sponsors/motdotla)**
+> 
+> The dotenvx README is viewed thousands of times DAILY on GitHub and NPM.
+> Sponsoring dotenv is a great way to get in front of developers and give back to the developer community at the same time.
+
+### Changed
+
+- Remove `_log` method. Use `_debug` [#862](https://github.com/motdotla/dotenv/pull/862)
+
+## [16.4.7](https://github.com/motdotla/dotenv/compare/v16.4.6...v16.4.7) (2024-12-03)
+
+### Changed
+
+- Ignore `.tap` folder when publishing. (oops, sorry about that everyone. - @motdotla) [#848](https://github.com/motdotla/dotenv/pull/848)
+
+## [16.4.6](https://github.com/motdotla/dotenv/compare/v16.4.5...v16.4.6) (2024-12-02)
+
+### Changed
+
+- Clean up stale dev dependencies [#847](https://github.com/motdotla/dotenv/pull/847)
+- Various README updates clarifying usage and alternative solutions using [dotenvx](https://github.com/dotenvx/dotenvx)
+
+## [16.4.5](https://github.com/motdotla/dotenv/compare/v16.4.4...v16.4.5) (2024-02-19)
+
+### Changed
+
+- 🐞 Fix recent regression when using `path` option. return to historical behavior: do not attempt to auto find `.env` if `path` set. (regression was introduced in `16.4.3`) [#814](https://github.com/motdotla/dotenv/pull/814)
+
+## [16.4.4](https://github.com/motdotla/dotenv/compare/v16.4.3...v16.4.4) (2024-02-13)
+
+### Changed
+
+- 🐞 Replaced chaining operator `?.` with old school `&&` (fixing node 12 failures) [#812](https://github.com/motdotla/dotenv/pull/812)
+
+## [16.4.3](https://github.com/motdotla/dotenv/compare/v16.4.2...v16.4.3) (2024-02-12)
+
+### Changed
+
+- Fixed processing of multiple files in `options.path` [#805](https://github.com/motdotla/dotenv/pull/805)
+
+## [16.4.2](https://github.com/motdotla/dotenv/compare/v16.4.1...v16.4.2) (2024-02-10)
+
+### Changed
+
+- Changed funding link in package.json to [`dotenvx.com`](https://dotenvx.com)
+
+## [16.4.1](https://github.com/motdotla/dotenv/compare/v16.4.0...v16.4.1) (2024-01-24)
+
+- Patch support for array as `path` option [#797](https://github.com/motdotla/dotenv/pull/797)
+
+## [16.4.0](https://github.com/motdotla/dotenv/compare/v16.3.2...v16.4.0) (2024-01-23)
+
+- Add `error.code` to error messages around `.env.vault` decryption handling [#795](https://github.com/motdotla/dotenv/pull/795)
+- Add ability to find `.env.vault` file when filename(s) passed as an array [#784](https://github.com/motdotla/dotenv/pull/784)
+
+## [16.3.2](https://github.com/motdotla/dotenv/compare/v16.3.1...v16.3.2) (2024-01-18)
+
+### Added
+
+- Add debug message when no encoding set [#735](https://github.com/motdotla/dotenv/pull/735)
+
+### Changed
+
+- Fix output typing for `populate` [#792](https://github.com/motdotla/dotenv/pull/792)
+- Use subarray instead of slice [#793](https://github.com/motdotla/dotenv/pull/793)
+
+## [16.3.1](https://github.com/motdotla/dotenv/compare/v16.3.0...v16.3.1) (2023-06-17)
+
+### Added
+
+- Add missing type definitions for `processEnv` and `DOTENV_KEY` options. [#756](https://github.com/motdotla/dotenv/pull/756)
+
+## [16.3.0](https://github.com/motdotla/dotenv/compare/v16.2.0...v16.3.0) (2023-06-16)
+
+### Added
+
+- Optionally pass `DOTENV_KEY` to options rather than relying on `process.env.DOTENV_KEY`. Defaults to `process.env.DOTENV_KEY` [#754](https://github.com/motdotla/dotenv/pull/754)
+
+## [16.2.0](https://github.com/motdotla/dotenv/compare/v16.1.4...v16.2.0) (2023-06-15)
+
+### Added
+
+- Optionally write to your own target object rather than `process.env`. Defaults to `process.env`. [#753](https://github.com/motdotla/dotenv/pull/753)
+- Add import type URL to types file [#751](https://github.com/motdotla/dotenv/pull/751)
+
+## [16.1.4](https://github.com/motdotla/dotenv/compare/v16.1.3...v16.1.4) (2023-06-04)
+
+### Added
+
+- Added `.github/` to `.npmignore` [#747](https://github.com/motdotla/dotenv/pull/747)
+
+## [16.1.3](https://github.com/motdotla/dotenv/compare/v16.1.2...v16.1.3) (2023-05-31)
+
+### Removed
+
+- Removed `browser` keys for `path`, `os`, and `crypto` in package.json. These were set to false incorrectly as of 16.1. Instead, if using dotenv on the front-end make sure to include polyfills for `path`, `os`, and `crypto`. [node-polyfill-webpack-plugin](https://github.com/Richienb/node-polyfill-webpack-plugin) provides these.
+
+## [16.1.2](https://github.com/motdotla/dotenv/compare/v16.1.1...v16.1.2) (2023-05-31)
+
+### Changed
+
+- Exposed private function `_configDotenv` as `configDotenv`. [#744](https://github.com/motdotla/dotenv/pull/744)
+
+## [16.1.1](https://github.com/motdotla/dotenv/compare/v16.1.0...v16.1.1) (2023-05-30)
+
+### Added
+
+- Added type definition for `decrypt` function
+
+### Changed
+
+- Fixed `{crypto: false}` in `packageJson.browser`
+
+## [16.1.0](https://github.com/motdotla/dotenv/compare/v16.0.3...v16.1.0) (2023-05-30)
+
+### Added
+
+- Add `populate` convenience method [#733](https://github.com/motdotla/dotenv/pull/733)
+- Accept URL as path option [#720](https://github.com/motdotla/dotenv/pull/720)
+- Add dotenv to `npm fund` command
+- Spanish language README [#698](https://github.com/motdotla/dotenv/pull/698)
+- Add `.env.vault` support. 🎉 ([#730](https://github.com/motdotla/dotenv/pull/730))
+
+ℹ️ `.env.vault` extends the `.env` file format standard with a localized encrypted vault file. Package it securely with your production code deploys. It's cloud agnostic so that you can deploy your secrets anywhere – without [risky third-party integrations](https://techcrunch.com/2023/01/05/circleci-breach/). [read more](https://github.com/motdotla/dotenv#-deploying)
+
+### Changed
+
+- Fixed "cannot resolve 'fs'" error on tools like Replit [#693](https://github.com/motdotla/dotenv/pull/693)
+
+## [16.0.3](https://github.com/motdotla/dotenv/compare/v16.0.2...v16.0.3) (2022-09-29)
+
+### Changed
+
+- Added library version to debug logs ([#682](https://github.com/motdotla/dotenv/pull/682))
+
+## [16.0.2](https://github.com/motdotla/dotenv/compare/v16.0.1...v16.0.2) (2022-08-30)
+
+### Added
+
+- Export `env-options.js` and `cli-options.js` in package.json for use with downstream [dotenv-expand](https://github.com/motdotla/dotenv-expand) module
+
+## [16.0.1](https://github.com/motdotla/dotenv/compare/v16.0.0...v16.0.1) (2022-05-10)
+
+### Changed
+
+- Minor README clarifications
+- Development ONLY: updated devDependencies as recommended for development only security risks ([#658](https://github.com/motdotla/dotenv/pull/658))
+
+## [16.0.0](https://github.com/motdotla/dotenv/compare/v15.0.1...v16.0.0) (2022-02-02)
+
+### Added
+
+- _Breaking:_ Backtick support 🎉 ([#615](https://github.com/motdotla/dotenv/pull/615))
+
+If you had values containing the backtick character, please quote those values with either single or double quotes.
+
+## [15.0.1](https://github.com/motdotla/dotenv/compare/v15.0.0...v15.0.1) (2022-02-02)
+
+### Changed
+
+- Properly parse empty single or double quoted values 🐞 ([#614](https://github.com/motdotla/dotenv/pull/614))
+
+## [15.0.0](https://github.com/motdotla/dotenv/compare/v14.3.2...v15.0.0) (2022-01-31)
+
+`v15.0.0` is a major new release with some important breaking changes.
+
+### Added
+
+- _Breaking:_ Multiline parsing support (just works. no need for the flag.)
+
+### Changed
+
+- _Breaking:_ `#` marks the beginning of a comment (UNLESS the value is wrapped in quotes. Please update your `.env` files to wrap in quotes any values containing `#`. For example: `SECRET_HASH="something-with-a-#-hash"`).
+
+..Understandably, (as some teams have noted) this is tedious to do across the entire team. To make it less tedious, we recommend using [dotenv cli](https://github.com/dotenv-org/cli) going forward. It's an optional plugin that will keep your `.env` files in sync between machines, environments, or team members.
+
+### Removed
+
+- _Breaking:_ Remove multiline option (just works out of the box now. no need for the flag.)
+
+## [14.3.2](https://github.com/motdotla/dotenv/compare/v14.3.1...v14.3.2) (2022-01-25)
+
+### Changed
+
+- Preserve backwards compatibility on values containing `#` 🐞 ([#603](https://github.com/motdotla/dotenv/pull/603))
+
+## [14.3.1](https://github.com/motdotla/dotenv/compare/v14.3.0...v14.3.1) (2022-01-25)
+
+### Changed
+
+- Preserve backwards compatibility on exports by re-introducing the prior in-place exports 🐞 ([#606](https://github.com/motdotla/dotenv/pull/606))
+
+## [14.3.0](https://github.com/motdotla/dotenv/compare/v14.2.0...v14.3.0) (2022-01-24)
+
+### Added
+
+- Add `multiline` option 🎉 ([#486](https://github.com/motdotla/dotenv/pull/486))
+
+## [14.2.0](https://github.com/motdotla/dotenv/compare/v14.1.1...v14.2.0) (2022-01-17)
+
+### Added
+
+- Add `dotenv_config_override` cli option
+- Add `DOTENV_CONFIG_OVERRIDE` command line env option
+
+## [14.1.1](https://github.com/motdotla/dotenv/compare/v14.1.0...v14.1.1) (2022-01-17)
+
+### Added
+
+- Add React gotcha to FAQ on README
+
+## [14.1.0](https://github.com/motdotla/dotenv/compare/v14.0.1...v14.1.0) (2022-01-17)
+
+### Added
+
+- Add `override` option 🎉 ([#595](https://github.com/motdotla/dotenv/pull/595))
+
+## [14.0.1](https://github.com/motdotla/dotenv/compare/v14.0.0...v14.0.1) (2022-01-16)
+
+### Added
+
+- Log error on failure to load `.env` file ([#594](https://github.com/motdotla/dotenv/pull/594))
+
+## [14.0.0](https://github.com/motdotla/dotenv/compare/v13.0.1...v14.0.0) (2022-01-16)
+
+### Added
+
+- _Breaking:_ Support inline comments for the parser 🎉 ([#568](https://github.com/motdotla/dotenv/pull/568))
+
+## [13.0.1](https://github.com/motdotla/dotenv/compare/v13.0.0...v13.0.1) (2022-01-16)
+
+### Changed
+
+* Hide comments and newlines from debug output ([#404](https://github.com/motdotla/dotenv/pull/404))
+
+## [13.0.0](https://github.com/motdotla/dotenv/compare/v12.0.4...v13.0.0) (2022-01-16)
+
+### Added
+
+* _Breaking:_ Add type file for `config.js` ([#539](https://github.com/motdotla/dotenv/pull/539))
+
+## [12.0.4](https://github.com/motdotla/dotenv/compare/v12.0.3...v12.0.4) (2022-01-16)
+
+### Changed
+
+* README updates
+* Minor order adjustment to package json format
+
+## [12.0.3](https://github.com/motdotla/dotenv/compare/v12.0.2...v12.0.3) (2022-01-15)
+
+### Changed
+
+* Simplified jsdoc for consistency across editors
+
+## [12.0.2](https://github.com/motdotla/dotenv/compare/v12.0.1...v12.0.2) (2022-01-15)
+
+### Changed
+
+* Improve embedded jsdoc type documentation
+
+## [12.0.1](https://github.com/motdotla/dotenv/compare/v12.0.0...v12.0.1) (2022-01-15)
+
+### Changed
+
+* README updates and clarifications
+
+## [12.0.0](https://github.com/motdotla/dotenv/compare/v11.0.0...v12.0.0) (2022-01-15)
+
+### Removed
+
+- _Breaking:_ drop support for Flow static type checker ([#584](https://github.com/motdotla/dotenv/pull/584))
+
+### Changed
+
+- Move types/index.d.ts to lib/main.d.ts ([#585](https://github.com/motdotla/dotenv/pull/585))
+- Typescript cleanup ([#587](https://github.com/motdotla/dotenv/pull/587))
+- Explicit typescript inclusion in package.json ([#566](https://github.com/motdotla/dotenv/pull/566))
+
+## [11.0.0](https://github.com/motdotla/dotenv/compare/v10.0.0...v11.0.0) (2022-01-11)
+
+### Changed
+
+- _Breaking:_ drop support for Node v10 ([#558](https://github.com/motdotla/dotenv/pull/558))
+- Patch debug option ([#550](https://github.com/motdotla/dotenv/pull/550))
+
+## [10.0.0](https://github.com/motdotla/dotenv/compare/v9.0.2...v10.0.0) (2021-05-20)
+
+### Added
+
+- Add generic support to parse function
+- Allow for import "dotenv/config.js"
+- Add support to resolve home directory in path via ~
+
+## [9.0.2](https://github.com/motdotla/dotenv/compare/v9.0.1...v9.0.2) (2021-05-10)
+
+### Changed
+
+- Support windows newlines with debug mode
+
+## [9.0.1](https://github.com/motdotla/dotenv/compare/v9.0.0...v9.0.1) (2021-05-08)
+
+### Changed
+
+- Updates to README
+
+## [9.0.0](https://github.com/motdotla/dotenv/compare/v8.6.0...v9.0.0) (2021-05-05)
+
+### Changed
+
+- _Breaking:_ drop support for Node v8
+
+## [8.6.0](https://github.com/motdotla/dotenv/compare/v8.5.1...v8.6.0) (2021-05-05)
+
+### Added
+
+- define package.json in exports
+
+## [8.5.1](https://github.com/motdotla/dotenv/compare/v8.5.0...v8.5.1) (2021-05-05)
+
+### Changed
+
+- updated dev dependencies via npm audit
+
+## [8.5.0](https://github.com/motdotla/dotenv/compare/v8.4.0...v8.5.0) (2021-05-05)
+
+### Added
+
+- allow for `import "dotenv/config"`
+
+## [8.4.0](https://github.com/motdotla/dotenv/compare/v8.3.0...v8.4.0) (2021-05-05)
+
+### Changed
+
+- point to exact types file to work with VS Code
+
+## [8.3.0](https://github.com/motdotla/dotenv/compare/v8.2.0...v8.3.0) (2021-05-05)
+
+### Changed
+
+- _Breaking:_ drop support for Node v8 (mistake to be released as minor bump. later bumped to 9.0.0. see above.)
+
+## [8.2.0](https://github.com/motdotla/dotenv/compare/v8.1.0...v8.2.0) (2019-10-16)
+
+### Added
+
+- TypeScript types
+
+## [8.1.0](https://github.com/motdotla/dotenv/compare/v8.0.0...v8.1.0) (2019-08-18)
+
+### Changed
+
+- _Breaking:_ drop support for Node v6 ([#392](https://github.com/motdotla/dotenv/issues/392))
+
+# [8.0.0](https://github.com/motdotla/dotenv/compare/v7.0.0...v8.0.0) (2019-05-02)
+
+### Changed
+
+- _Breaking:_ drop support for Node v6 ([#302](https://github.com/motdotla/dotenv/issues/392))
+
+## [7.0.0] - 2019-03-12
+
+### Fixed
+
+- Fix removing unbalanced quotes ([#376](https://github.com/motdotla/dotenv/pull/376))
+
+### Removed
+
+- Removed `load` alias for `config` for consistency throughout code and documentation.
+
+## [6.2.0] - 2018-12-03
+
+### Added
+
+- Support preload configuration via environment variables ([#351](https://github.com/motdotla/dotenv/issues/351))
+
+## [6.1.0] - 2018-10-08
+
+### Added
+
+- `debug` option for `config` and `parse` methods will turn on logging
+
+## [6.0.0] - 2018-06-02
+
+### Changed
+
+- _Breaking:_ drop support for Node v4 ([#304](https://github.com/motdotla/dotenv/pull/304))
+
+## [5.0.0] - 2018-01-29
+
+### Added
+
+- Testing against Node v8 and v9
+- Documentation on trim behavior of values
+- Documentation on how to use with `import`
+
+### Changed
+
+- _Breaking_: default `path` is now `path.resolve(process.cwd(), '.env')`
+- _Breaking_: does not write over keys already in `process.env` if the key has a falsy value
+- using `const` and `let` instead of `var`
+
+### Removed
+
+- Testing against Node v7
+
+## [4.0.0] - 2016-12-23
+
+### Changed
+
+- Return Object with parsed content or error instead of false ([#165](https://github.com/motdotla/dotenv/pull/165)).
+
+### Removed
+
+- `verbose` option removed in favor of returning result.
+
+## [3.0.0] - 2016-12-20
+
+### Added
+
+- `verbose` option will log any error messages. Off by default.
+- parses email addresses correctly
+- allow importing config method directly in ES6
+
+### Changed
+
+- Suppress error messages by default ([#154](https://github.com/motdotla/dotenv/pull/154))
+- Ignoring more files for NPM to make package download smaller
+
+### Fixed
+
+- False positive test due to case-sensitive variable ([#124](https://github.com/motdotla/dotenv/pull/124))
+
+### Removed
+
+- `silent` option removed in favor of `verbose`
+
+## [2.0.0] - 2016-01-20
+
+### Added
+
+- CHANGELOG to ["make it easier for users and contributors to see precisely what notable changes have been made between each release"](http://keepachangelog.com/). Linked to from README
+- LICENSE to be more explicit about what was defined in `package.json`. Linked to from README
+- Testing nodejs v4 on travis-ci
+- added examples of how to use dotenv in different ways
+- return parsed object on success rather than boolean true
+
+### Changed
+
+- README has shorter description not referencing ruby gem since we don't have or want feature parity
+
+### Removed
+
+- Variable expansion and escaping so environment variables are encouraged to be fully orthogonal
+
+## [1.2.0] - 2015-06-20
+
+### Added
+
+- Preload hook to require dotenv without including it in your code
+
+### Changed
+
+- clarified license to be "BSD-2-Clause" in `package.json`
+
+### Fixed
+
+- retain spaces in string vars
+
+## [1.1.0] - 2015-03-31
+
+### Added
+
+- Silent option to silence `console.log` when `.env` missing
+
+## [1.0.0] - 2015-03-13
+
+### Removed
+
+- support for multiple `.env` files. should always use one `.env` file for the current environment
+
+[7.0.0]: https://github.com/motdotla/dotenv/compare/v6.2.0...v7.0.0
+[6.2.0]: https://github.com/motdotla/dotenv/compare/v6.1.0...v6.2.0
+[6.1.0]: https://github.com/motdotla/dotenv/compare/v6.0.0...v6.1.0
+[6.0.0]: https://github.com/motdotla/dotenv/compare/v5.0.0...v6.0.0
+[5.0.0]: https://github.com/motdotla/dotenv/compare/v4.0.0...v5.0.0
+[4.0.0]: https://github.com/motdotla/dotenv/compare/v3.0.0...v4.0.0
+[3.0.0]: https://github.com/motdotla/dotenv/compare/v2.0.0...v3.0.0
+[2.0.0]: https://github.com/motdotla/dotenv/compare/v1.2.0...v2.0.0
+[1.2.0]: https://github.com/motdotla/dotenv/compare/v1.1.0...v1.2.0
+[1.1.0]: https://github.com/motdotla/dotenv/compare/v1.0.0...v1.1.0
+[1.0.0]: https://github.com/motdotla/dotenv/compare/v0.4.0...v1.0.0
diff --git a/backend/node_modules/dotenv/LICENSE b/backend/node_modules/dotenv/LICENSE
new file mode 100644
index 0000000..c430ad8
--- /dev/null
+++ b/backend/node_modules/dotenv/LICENSE
@@ -0,0 +1,23 @@
+Copyright (c) 2015, Scott Motte
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are met:
+
+* Redistributions of source code must retain the above copyright notice, this
+  list of conditions and the following disclaimer.
+
+* Redistributions in binary form must reproduce the above copyright notice,
+  this list of conditions and the following disclaimer in the documentation
+  and/or other materials provided with the distribution.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
diff --git a/backend/node_modules/dotenv/README-es.md b/backend/node_modules/dotenv/README-es.md
new file mode 100644
index 0000000..978a73b
--- /dev/null
+++ b/backend/node_modules/dotenv/README-es.md
@@ -0,0 +1,405 @@
+<div align="center">
+🎉 announcing <a href="https://github.com/dotenvx/dotenvx">dotenvx</a>. <em>run anywhere, multi-environment, encrypted envs</em>.
+</div>
+
+&nbsp;
+
+<div align="center">
+
+**Special thanks to [our sponsors](https://github.com/sponsors/motdotla)**
+
+<a href="https://tuple.app/dotenv">
+  <div>
+    <img src="https://res.cloudinary.com/dotenv-org/image/upload/w_1000,ar_16:9,c_fill,g_auto,e_sharpen/v1756831704/github_repo_sponsorship_gq4hvx.png" width="600" alt="Tuple">
+  </div>
+  <b>Tuple, the premier screen sharing app for developers on macOS and Windows.</b>
+</a>
+<hr>
+</div>
+
+# dotenv [![NPM version](https://img.shields.io/npm/v/dotenv.svg?style=flat-square)](https://www.npmjs.com/package/dotenv)
+
+<img src="https://raw.githubusercontent.com/motdotla/dotenv/master/dotenv.svg" alt="dotenv" align="right" width="200" />
+
+Dotenv es un módulo de dependencia cero que carga las variables de entorno desde un archivo `.env` en [`process.env`](https://nodejs.org/docs/latest/api/process.html#process_process_env). El almacenamiento de la configuración del entorno separado del código está basado en la metodología [The Twelve-Factor App](http://12factor.net/config).
+
+[![js-standard-style](https://img.shields.io/badge/code%20style-standard-brightgreen.svg?style=flat-square)](https://github.com/feross/standard)
+[![LICENSE](https://img.shields.io/github/license/motdotla/dotenv.svg)](LICENSE)
+
+## Instalación
+
+```bash
+# instalación local (recomendado)
+npm install dotenv --save
+```
+
+O installación con yarn? `yarn add dotenv`
+
+## Uso
+
+Cree un archivo `.env` en la raíz de su proyecto:
+
+```dosini
+S3_BUCKET="YOURS3BUCKET"
+SECRET_KEY="YOURSECRETKEYGOESHERE"
+```
+
+Tan prónto como sea posible en su aplicación, importe y configure dotenv:
+
+```javascript
+require('dotenv').config()
+console.log(process.env) // elimine esto después que haya confirmado que esta funcionando
+```
+
+.. o usa ES6?
+
+```javascript
+import * as dotenv from 'dotenv' // vea en https://github.com/motdotla/dotenv#como-uso-dotenv-con-import
+// REVISAR LINK DE REFERENCIA DE IMPORTACIÓN
+dotenv.config()
+import express from 'express'
+```
+
+Eso es todo. `process.env` ahora tiene las claves y los valores que definiste en tu archivo `.env`:
+
+```javascript
+require('dotenv').config()
+
+...
+
+s3.getBucketCors({Bucket: process.env.S3_BUCKET}, function(err, data) {})
+```
+
+### Valores multilínea
+
+Si necesita variables de varias líneas, por ejemplo, claves privadas, ahora se admiten en la versión (`>= v15.0.0`) con saltos de línea:
+
+```dosini
+PRIVATE_KEY="-----BEGIN RSA PRIVATE KEY-----
+...
+Kh9NV...
+...
+-----END RSA PRIVATE KEY-----"
+```
+
+Alternativamente, puede usar comillas dobles y usar el carácter `\n`:
+
+```dosini
+PRIVATE_KEY="-----BEGIN RSA PRIVATE KEY-----\nKh9NV...\n-----END RSA PRIVATE KEY-----\n"
+```
+
+### Comentarios
+
+Los comentarios pueden ser agregados en tu archivo o en la misma línea:
+
+```dosini
+# This is a comment
+SECRET_KEY=YOURSECRETKEYGOESHERE # comment
+SECRET_HASH="something-with-a-#-hash"
+```
+
+Los comentarios comienzan donde existe un `#`, entonces, si su valor contiene un `#`, enciérrelo entre comillas. Este es un cambio importante desde la versión `>= v15.0.0` en adelante.
+
+### Análisis
+
+El motor que analiza el contenido de su archivo que contiene variables de entorno está disponible para su uso. Este Acepta una Cadena o un Búfer y devolverá un Objeto con las claves y los valores analizados.
+
+```javascript
+const dotenv = require('dotenv')
+const buf = Buffer.from('BASICO=basico')
+const config = dotenv.parse(buf) // devolverá un objeto
+console.log(typeof config, config) // objeto { BASICO : 'basico' }
+```
+
+### Precarga
+
+Puede usar el `--require` (`-r`) [opción de línea de comando](https://nodejs.org/api/cli.html#-r---require-module) para precargar dotenv. Al hacer esto, no necesita requerir ni cargar dotnev en el código de su aplicación.
+
+```bash
+$ node -r dotenv/config tu_script.js
+```
+
+Las opciones de configuración a continuación se admiten como argumentos de línea de comandos en el formato `dotenv_config_<option>=value`
+
+```bash
+$ node -r dotenv/config tu_script.js dotenv_config_path=/custom/path/to/.env dotenv_config_debug=true
+```
+
+Además, puede usar variables de entorno para establecer opciones de configuración. Los argumentos de línea de comandos precederán a estos.
+
+```bash
+$ DOTENV_CONFIG_<OPTION>=value node -r dotenv/config tu_script.js
+```
+
+```bash
+$ DOTENV_CONFIG_ENCODING=latin1 DOTENV_CONFIG_DEBUG=true node -r dotenv/config tu_script.js dotenv_config_path=/custom/path/to/.env
+```
+
+### Expansión Variable
+
+Necesitaras agregar el valor de otro variable en una de sus variables? Usa [dotenv-expand](https://github.com/motdotla/dotenv-expand).
+
+## Ejemplos
+
+Vea [ejemplos](https://github.com/dotenv-org/examples) sobre el uso de dotenv con varios frameworks, lenguajes y configuraciones.
+
+* [nodejs](https://github.com/dotenv-org/examples/tree/master/dotenv-nodejs)
+* [nodejs (depurar en)](https://github.com/dotenv-org/examples/tree/master/dotenv-nodejs-debug)
+* [nodejs (anular en)](https://github.com/dotenv-org/examples/tree/master/dotenv-nodejs-override)
+* [esm](https://github.com/dotenv-org/examples/tree/master/dotenv-esm)
+* [esm (precarga)](https://github.com/dotenv-org/examples/tree/master/dotenv-esm-preload)
+* [typescript](https://github.com/dotenv-org/examples/tree/master/dotenv-typescript)
+* [typescript parse](https://github.com/dotenv-org/examples/tree/master/dotenv-typescript-parse)
+* [typescript config](https://github.com/dotenv-org/examples/tree/master/dotenv-typescript-config)
+* [webpack](https://github.com/dotenv-org/examples/tree/master/dotenv-webpack)
+* [webpack (plugin)](https://github.com/dotenv-org/examples/tree/master/dotenv-webpack2)
+* [react](https://github.com/dotenv-org/examples/tree/master/dotenv-react)
+* [react (typescript)](https://github.com/dotenv-org/examples/tree/master/dotenv-react-typescript)
+* [express](https://github.com/dotenv-org/examples/tree/master/dotenv-express)
+* [nestjs](https://github.com/dotenv-org/examples/tree/master/dotenv-nestjs)
+
+## Documentación
+
+Dotenv expone dos funciones:
+
+* `configuración`
+* `analizar`
+
+### Configuración
+
+`Configuración` leerá su archivo `.env`, analizará el contenido, lo asignará a [`process.env`](https://nodejs.org/docs/latest/api/process.html#process_process_env),
+y devolverá un Objeto con una clave `parsed` que contiene el contenido cargado o una clave `error` si falla.
+
+```js
+const result = dotenv.config()
+
+if (result.error) {
+  throw result.error
+}
+
+console.log(result.parsed)
+```
+
+Adicionalmente, puede pasar opciones a `configuracion`.
+
+#### Opciones
+
+##### Ruta
+
+Por defecto: `path.resolve(process.cwd(), '.env')`
+
+Especifique una ruta personalizada si el archivo que contiene las variables de entorno se encuentra localizado en otro lugar.
+
+```js
+require('dotenv').config({ path: '/personalizado/ruta/a/.env' })
+```
+
+##### Codificación
+
+Por defecto: `utf8`
+
+Especifique la codificación del archivo que contiene las variables de entorno.
+
+```js
+require('dotenv').config({ encoding: 'latin1' })
+```
+
+##### Depurar
+
+Por defecto: `false`
+
+Active el registro de ayuda para depurar por qué ciertas claves o valores no se inician como lo esperabas.
+
+```js
+require('dotenv').config({ debug: process.env.DEBUG })
+```
+
+##### Anular
+
+Por defecto: `false`
+
+Anule cualquier variable de entorno que ya se haya configurada en su maquina con los valores de su archivo .env.
+
+```js
+require('dotenv').config({ override: true })
+```
+
+### Analizar
+
+El motor que analiza el contenido del archivo que contiene las variables de entorno está disponible para su uso. Acepta una Cadena o un Búfer y retornará un objecto con los valores analizados.
+
+```js
+const dotenv = require('dotenv')
+const buf = Buffer.from('BASICO=basico')
+const config = dotenv.parse(buf) // devolverá un objeto
+console.log(typeof config, config) // objeto { BASICO : 'basico' }
+```
+
+#### Opciones
+
+##### Depurar
+
+Por defecto: `false`
+
+Active el registro de ayuda para depurar por qué ciertas claves o valores no se inician como lo esperabas.
+
+```js
+const dotenv = require('dotenv')
+const buf = Buffer.from('hola mundo')
+const opt = { debug: true }
+const config = dotenv.parse(buf, opt)
+// espere por un mensaje de depuración porque el búfer no esta listo KEY=VAL
+```
+
+## FAQ
+
+### ¿Por qué el archivo `.env` no carga mis variables de entorno correctamente?
+
+Lo más probable es que su archivo `.env` no esté en el lugar correcto. [Vea este stack overflow](https://stackoverflow.com/questions/42335016/dotenv-file-is-not-loading-environment-variables).
+
+Active el modo de depuración y vuelva a intentarlo...
+
+```js
+require('dotenv').config({ debug: true })
+```
+
+Recibirá un error apropiado en su consola.
+
+### ¿Debo confirmar mi archivo `.env`?
+
+No. Recomendamos **enfáticamente** no enviar su archivo `.env` a la versión de control. Solo debe incluir los valores especificos del entorno, como la base de datos, contraseñas o claves API.
+
+### ¿Debería tener multiples archivos `.env`?
+
+No. Recomendamos **enfáticamente** no tener un archivo `.env` "principal" y un archivo `.env` de "entorno" como `.env.test`. Su configuración debe variar entre implementaciones y no debe compartir valores entre entornos.
+
+> En una Aplicación de Doce Factores, las variables de entorno son controles diferenciados, cada uno totalmente independiente a otras variables de entorno. Nunca se agrupan como "entornos", sino que se gestionan de manera independiente para cada despliegue. Este es un modelo que se escala sin problemas a medida que la aplicación se expande de forma natural en más despliegues a lo largo de su vida.
+>
+> – [La Apliación de los Doce Factores](https://12factor.net/es/)
+
+### ¿Qué reglas sigue el motor de análisis?
+
+El motor de análisis actualmente admite las siguientes reglas:
+
+- `BASICO=basico` se convierte en `{BASICO: 'basico'}`
+- las líneas vacías se saltan
+- las líneas que comienzan con `#` se tratan como comentarios
+- `#` marca el comienzo de un comentario (a menos que el valor esté entre comillas)
+- valores vacíos se convierten en cadenas vacías (`VACIO=` se convierte en `{VACIO: ''}`)
+- las comillas internas se mantienen (piensa en JSON) (`JSON={"foo": "bar"}` se convierte en `{JSON:"{\"foo\": \"bar\"}"`)
+- los espacios en blanco se eliminan de ambos extremos de los valores no citanos (aprende más en [`trim`](https://developer.mozilla.org/es/docs/Web/JavaScript/Reference/Global_Objects/String/Trim)) (`FOO=  algo ` se convierte en `{FOO: 'algo'}`)
+- los valores entre comillas simples y dobles se escapan (`CITA_SIMPLE='citado'` se convierte en `{CITA_SIMPLE: "citado"}`)
+- los valores entre comillas simples y dobles mantienen los espacios en blanco en ambos extremos  (`FOO="  algo  "` se convierte en `{FOO: '  algo  '}`)
+- los valores entre comillas dobles expanden nuevas líneas (`MULTILINEA="nueva\nlínea"` se convierte en
+
+```
+{MULTILINEA: 'nueva
+línea'}
+```
+
+- se admite la comilla simple invertida (`` SIGNO_ACENTO=`Esto tiene comillas 'simples' y "dobles" en su interior.` ``)
+
+### ¿Qué sucede con las variables de entorno que ya estaban configuradas?
+
+Por defecto, nunca modificaremos ninguna variable de entorno que ya haya sido establecida. En particular, si hay una variable en su archivo `.env` que colisiona con una que ya existe en su entorno, entonces esa variable se omitirá.
+
+Si por el contrario, quieres anular `process.env` utiliza la opción `override`.
+
+```javascript
+require('dotenv').config({ override: true })
+```
+
+### ¿Por qué mis variables de entorno no aparecen para React?
+
+Su código React se ejecuta en Webpack, donde el módulo `fs` o incluso el propio `process` global no son accesibles fuera-de-la-caja. El módulo `process.env` sólo puede ser inyectado a través de la configuración de Webpack.
+
+Si estás usando [`react-scripts`](https://www.npmjs.com/package/react-scripts), el cual se distribuye a través de [`create-react-app`](https://create-react-app.dev/), tiene dotenv incorporado pero con una singularidad. Escriba sus variables de entorno con `REACT_APP_`. Vea [este stack overflow](https://stackoverflow.com/questions/42182577/is-it-possible-to-use-dotenv-in-a-react-project) para más detalles.
+
+Si estás utilizando otros frameworks (por ejemplo, Next.js, Gatsby...), debes consultar su documentación para saber cómo injectar variables de entorno en el cliente.
+
+### ¿Puedo personalizar/escribir plugins para dotenv?
+
+Sí! `dotenv.config()` devuelve un objeto que representa el archivo `.env` analizado. Esto te da todo lo que necesitas para poder establecer valores en `process.env`. Por ejemplo:
+
+```js
+const dotenv = require('dotenv')
+const variableExpansion = require('dotenv-expand')
+const miEnv = dotenv.config()
+variableExpansion(miEnv)
+```
+
+### Cómo uso dotnev con `import`?
+
+Simplemente..
+
+```javascript
+// index.mjs (ESM)
+import * as dotenv from 'dotenv' // vea https://github.com/motdotla/dotenv#como-uso-dotenv-con-import
+dotenv.config()
+import express from 'express'
+```
+
+Un poco de historia...
+
+> Cuando se ejecuta un módulo que contiene una sentencia `import`, los módulos que importa serán cargados primero, y luego se ejecuta cada bloque del módulo en un recorrido en profundidad del gráfico de dependencias, evitando los ciclos al saltarse todo lo que ya se ha ejecutado.
+>
+> – [ES6 en Profundidad: Módulos](https://hacks.mozilla.org/2015/08/es6-in-depth-modules/)
+
+¿Qué significa esto en lenguaje sencillo? Significa que se podrías pensar que lo siguiente funcionaría pero no lo hará.
+
+```js
+// notificarError.mjs
+import { Cliente } from 'mejor-servicio-para-notificar-error'
+
+export default new Client(process.env.CLAVE_API)
+
+// index.mjs
+import dotenv from 'dotenv'
+dotenv.config()
+
+import notificarError from './notificarError.mjs'
+notificarError.report(new Error('ejemplo documentado'))
+```
+
+`process.env.CLAVE_API` será vacio.
+
+En su lugar, el código anterior debe ser escrito como...
+
+```js
+// notificarError.mjs
+import { Cliente } from 'mejor-servicio-para-notificar-errores'
+
+export default new Client(process.env.CLAVE_API)
+
+// index.mjs
+import * as dotenv from 'dotenv'
+dotenv.config()
+
+import notificarError from './notificarError.mjs'
+notificarError.report(new Error('ejemplo documentado'))
+```
+
+¿Esto tiene algo de sentido? Esto es poco poco intuitivo, pero es como funciona la importación de módulos en ES6. Aquí hay un ejemplo [ejemplo práctico de esta trampa](https://github.com/dotenv-org/examples/tree/master/dotenv-es6-import-pitfall).
+
+Existen dos arternativas a este planteamiento:
+
+1. Precarga dotenv: `node --require dotenv/config index.js` (_Nota: no es necesario usar `import` dotenv con este método_)
+2. Cree un archivo separado que ejecutará `config` primero como se describe en [este comentario #133](https://github.com/motdotla/dotenv/issues/133#issuecomment-255298822)
+
+### ¿Qué pasa con la expansión de variable?
+
+Prueba [dotenv-expand](https://github.com/motdotla/dotenv-expand)
+
+## Guía de contribución
+
+Vea [CONTRIBUTING.md](CONTRIBUTING.md)
+
+## REGISTRO DE CAMBIOS
+
+Vea [CHANGELOG.md](CHANGELOG.md)
+
+## ¿Quiénes utilizan dotenv?
+
+[Estos módulos npm dependen de él.](https://www.npmjs.com/browse/depended/dotenv)
+
+Los proyectos que lo amplían suelen utilizar la [palabra clave "dotenv" en npm](https://www.npmjs.com/search?q=keywords:dotenv).
diff --git a/backend/node_modules/dotenv/README.md b/backend/node_modules/dotenv/README.md
new file mode 100644
index 0000000..c942898
--- /dev/null
+++ b/backend/node_modules/dotenv/README.md
@@ -0,0 +1,692 @@
+<div align="center">
+🎉 announcing <a href="https://github.com/dotenvx/dotenvx">dotenvx</a>. <em>run anywhere, multi-environment, encrypted envs</em>.
+</div>
+
+&nbsp;
+
+<div align="center">
+
+**Special thanks to [our sponsors](https://github.com/sponsors/motdotla)**
+
+<a href="https://tuple.app/dotenv">
+  <div>
+    <img src="https://res.cloudinary.com/dotenv-org/image/upload/w_1000,ar_16:9,c_fill,g_auto,e_sharpen/v1756831704/github_repo_sponsorship_gq4hvx.png" width="600" alt="Tuple">
+  </div>
+  <b>Tuple, the premier screen sharing app for developers on macOS and Windows.</b>
+</a>
+<hr>
+</div>
+
+# dotenv [![NPM version](https://img.shields.io/npm/v/dotenv.svg?style=flat-square)](https://www.npmjs.com/package/dotenv)
+
+<img src="https://raw.githubusercontent.com/motdotla/dotenv/master/dotenv.svg" alt="dotenv" align="right" width="200" />
+
+Dotenv is a zero-dependency module that loads environment variables from a `.env` file into [`process.env`](https://nodejs.org/docs/latest/api/process.html#process_process_env). Storing configuration in the environment separate from code is based on [The Twelve-Factor App](https://12factor.net/config) methodology.
+
+[![js-standard-style](https://img.shields.io/badge/code%20style-standard-brightgreen.svg?style=flat-square)](https://github.com/feross/standard)
+[![LICENSE](https://img.shields.io/github/license/motdotla/dotenv.svg)](LICENSE)
+[![codecov](https://codecov.io/gh/motdotla/dotenv-expand/graph/badge.svg?token=pawWEyaMfg)](https://codecov.io/gh/motdotla/dotenv-expand)
+
+* [🌱 Install](#-install)
+* [🏗️ Usage (.env)](#%EF%B8%8F-usage)
+* [🌴 Multiple Environments 🆕](#-manage-multiple-environments)
+* [🚀 Deploying (encryption) 🆕](#-deploying)
+* [📚 Examples](#-examples)
+* [📖 Docs](#-documentation)
+* [❓ FAQ](#-faq)
+* [⏱️ Changelog](./CHANGELOG.md)
+
+## 🌱 Install
+
+```bash
+npm install dotenv --save
+```
+
+You can also use an npm-compatible package manager like yarn, bun or pnpm:
+
+```bash
+yarn add dotenv
+```
+```bash
+bun add dotenv
+```
+```bash
+pnpm add dotenv
+```
+
+## 🏗️ Usage
+
+<a href="https://www.youtube.com/watch?v=YtkZR0NFd1g">
+<div align="right">
+<img src="https://img.youtube.com/vi/YtkZR0NFd1g/hqdefault.jpg" alt="how to use dotenv video tutorial" align="right" width="330" />
+<img src="https://simpleicons.vercel.app/youtube/ff0000" alt="youtube/@dotenvorg" align="right" width="24" />
+</div>
+</a>
+
+Create a `.env` file in the root of your project (if using a monorepo structure like `apps/backend/app.js`, put it in the root of the folder where your `app.js` process runs):
+
+```dosini
+S3_BUCKET="YOURS3BUCKET"
+SECRET_KEY="YOURSECRETKEYGOESHERE"
+```
+
+As early as possible in your application, import and configure dotenv:
+
+```javascript
+require('dotenv').config()
+console.log(process.env) // remove this after you've confirmed it is working
+```
+
+.. [or using ES6?](#how-do-i-use-dotenv-with-import)
+
+```javascript
+import 'dotenv/config'
+```
+
+ES6 import if you need to set config options:
+
+```javascript
+import dotenv from 'dotenv'
+
+dotenv.config({ path: '/custom/path/to/.env' })
+```
+
+That's it. `process.env` now has the keys and values you defined in your `.env` file:
+
+```javascript
+require('dotenv').config()
+// or import 'dotenv/config' if you're using ES6
+
+...
+
+s3.getBucketCors({Bucket: process.env.S3_BUCKET}, function(err, data) {})
+```
+
+### Multiline values
+
+If you need multiline variables, for example private keys, those are now supported (`>= v15.0.0`) with line breaks:
+
+```dosini
+PRIVATE_KEY="-----BEGIN RSA PRIVATE KEY-----
+...
+Kh9NV...
+...
+-----END RSA PRIVATE KEY-----"
+```
+
+Alternatively, you can double quote strings and use the `\n` character:
+
+```dosini
+PRIVATE_KEY="-----BEGIN RSA PRIVATE KEY-----\nKh9NV...\n-----END RSA PRIVATE KEY-----\n"
+```
+
+### Comments
+
+Comments may be added to your file on their own line or inline:
+
+```dosini
+# This is a comment
+SECRET_KEY=YOURSECRETKEYGOESHERE # comment
+SECRET_HASH="something-with-a-#-hash"
+```
+
+Comments begin where a `#` exists, so if your value contains a `#` please wrap it in quotes. This is a breaking change from `>= v15.0.0` and on.
+
+### Parsing
+
+The engine which parses the contents of your file containing environment variables is available to use. It accepts a String or Buffer and will return an Object with the parsed keys and values.
+
+```javascript
+const dotenv = require('dotenv')
+const buf = Buffer.from('BASIC=basic')
+const config = dotenv.parse(buf) // will return an object
+console.log(typeof config, config) // object { BASIC : 'basic' }
+```
+
+### Preload
+
+> Note: Consider using [`dotenvx`](https://github.com/dotenvx/dotenvx) instead of preloading. I am now doing (and recommending) so.
+>
+> It serves the same purpose (you do not need to require and load dotenv), adds better debugging, and works with ANY language, framework, or platform. – [motdotla](https://github.com/motdotla)
+
+You can use the `--require` (`-r`) [command line option](https://nodejs.org/api/cli.html#-r---require-module) to preload dotenv. By doing this, you do not need to require and load dotenv in your application code.
+
+```bash
+$ node -r dotenv/config your_script.js
+```
+
+The configuration options below are supported as command line arguments in the format `dotenv_config_<option>=value`
+
+```bash
+$ node -r dotenv/config your_script.js dotenv_config_path=/custom/path/to/.env dotenv_config_debug=true
+```
+
+Additionally, you can use environment variables to set configuration options. Command line arguments will precede these.
+
+```bash
+$ DOTENV_CONFIG_<OPTION>=value node -r dotenv/config your_script.js
+```
+
+```bash
+$ DOTENV_CONFIG_ENCODING=latin1 DOTENV_CONFIG_DEBUG=true node -r dotenv/config your_script.js dotenv_config_path=/custom/path/to/.env
+```
+
+### Variable Expansion
+
+Use [dotenvx](https://github.com/dotenvx/dotenvx) to use variable expansion.
+
+Reference and expand variables already on your machine for use in your .env file.
+
+```ini
+# .env
+USERNAME="username"
+DATABASE_URL="postgres://${USERNAME}@localhost/my_database"
+```
+```js
+// index.js
+console.log('DATABASE_URL', process.env.DATABASE_URL)
+```
+```sh
+$ dotenvx run --debug -- node index.js
+[dotenvx@0.14.1] injecting env (2) from .env
+DATABASE_URL postgres://username@localhost/my_database
+```
+
+### Command Substitution
+
+Use [dotenvx](https://github.com/dotenvx/dotenvx) to use command substitution.
+
+Add the output of a command to one of your variables in your .env file.
+
+```ini
+# .env
+DATABASE_URL="postgres://$(whoami)@localhost/my_database"
+```
+```js
+// index.js
+console.log('DATABASE_URL', process.env.DATABASE_URL)
+```
+```sh
+$ dotenvx run --debug -- node index.js
+[dotenvx@0.14.1] injecting env (1) from .env
+DATABASE_URL postgres://yourusername@localhost/my_database
+```
+
+### Syncing
+
+You need to keep `.env` files in sync between machines, environments, or team members? Use [dotenvx](https://github.com/dotenvx/dotenvx) to encrypt your `.env` files and safely include them in source control. This still subscribes to the twelve-factor app rules by generating a decryption key separate from code.
+
+### Multiple Environments
+
+Use [dotenvx](https://github.com/dotenvx/dotenvx) to generate `.env.ci`, `.env.production` files, and more.
+
+### Deploying
+
+You need to deploy your secrets in a cloud-agnostic manner? Use [dotenvx](https://github.com/dotenvx/dotenvx) to generate a private decryption key that is set on your production server.
+
+## 🌴 Manage Multiple Environments
+
+Use [dotenvx](https://github.com/dotenvx/dotenvx)
+
+Run any environment locally. Create a `.env.ENVIRONMENT` file and use `--env-file` to load it. It's straightforward, yet flexible.
+
+```bash
+$ echo "HELLO=production" > .env.production
+$ echo "console.log('Hello ' + process.env.HELLO)" > index.js
+
+$ dotenvx run --env-file=.env.production -- node index.js
+Hello production
+> ^^
+```
+
+or with multiple .env files
+
+```bash
+$ echo "HELLO=local" > .env.local
+$ echo "HELLO=World" > .env
+$ echo "console.log('Hello ' + process.env.HELLO)" > index.js
+
+$ dotenvx run --env-file=.env.local --env-file=.env -- node index.js
+Hello local
+```
+
+[more environment examples](https://dotenvx.com/docs/quickstart/environments)
+
+## 🚀 Deploying
+
+Use [dotenvx](https://github.com/dotenvx/dotenvx).
+
+Add encryption to your `.env` files with a single command. Pass the `--encrypt` flag.
+
+```
+$ dotenvx set HELLO Production --encrypt -f .env.production
+$ echo "console.log('Hello ' + process.env.HELLO)" > index.js
+
+$ DOTENV_PRIVATE_KEY_PRODUCTION="<.env.production private key>" dotenvx run -- node index.js
+[dotenvx] injecting env (2) from .env.production
+Hello Production
+```
+
+[learn more](https://github.com/dotenvx/dotenvx?tab=readme-ov-file#encryption)
+
+## 📚 Examples
+
+See [examples](https://github.com/dotenv-org/examples) of using dotenv with various frameworks, languages, and configurations.
+
+* [nodejs](https://github.com/dotenv-org/examples/tree/master/usage/dotenv-nodejs)
+* [nodejs (debug on)](https://github.com/dotenv-org/examples/tree/master/usage/dotenv-nodejs-debug)
+* [nodejs (override on)](https://github.com/dotenv-org/examples/tree/master/usage/dotenv-nodejs-override)
+* [nodejs (processEnv override)](https://github.com/dotenv-org/examples/tree/master/usage/dotenv-custom-target)
+* [esm](https://github.com/dotenv-org/examples/tree/master/usage/dotenv-esm)
+* [esm (preload)](https://github.com/dotenv-org/examples/tree/master/usage/dotenv-esm-preload)
+* [typescript](https://github.com/dotenv-org/examples/tree/master/usage/dotenv-typescript)
+* [typescript parse](https://github.com/dotenv-org/examples/tree/master/usage/dotenv-typescript-parse)
+* [typescript config](https://github.com/dotenv-org/examples/tree/master/usage/dotenv-typescript-config)
+* [webpack](https://github.com/dotenv-org/examples/tree/master/usage/dotenv-webpack)
+* [webpack (plugin)](https://github.com/dotenv-org/examples/tree/master/usage/dotenv-webpack2)
+* [react](https://github.com/dotenv-org/examples/tree/master/usage/dotenv-react)
+* [react (typescript)](https://github.com/dotenv-org/examples/tree/master/usage/dotenv-react-typescript)
+* [express](https://github.com/dotenv-org/examples/tree/master/usage/dotenv-express)
+* [nestjs](https://github.com/dotenv-org/examples/tree/master/usage/dotenv-nestjs)
+* [fastify](https://github.com/dotenv-org/examples/tree/master/usage/dotenv-fastify)
+
+## 📖 Documentation
+
+Dotenv exposes four functions:
+
+* `config`
+* `parse`
+* `populate`
+
+### Config
+
+`config` will read your `.env` file, parse the contents, assign it to
+[`process.env`](https://nodejs.org/docs/latest/api/process.html#process_process_env),
+and return an Object with a `parsed` key containing the loaded content or an `error` key if it failed.
+
+```js
+const result = dotenv.config()
+
+if (result.error) {
+  throw result.error
+}
+
+console.log(result.parsed)
+```
+
+You can additionally, pass options to `config`.
+
+#### Options
+
+##### path
+
+Default: `path.resolve(process.cwd(), '.env')`
+
+Specify a custom path if your file containing environment variables is located elsewhere.
+
+```js
+require('dotenv').config({ path: '/custom/path/to/.env' })
+```
+
+By default, `config` will look for a file called .env in the current working directory.
+
+Pass in multiple files as an array, and they will be parsed in order and combined with `process.env` (or `option.processEnv`, if set). The first value set for a variable will win, unless the `options.override` flag is set, in which case the last value set will win.  If a value already exists in `process.env` and the `options.override` flag is NOT set, no changes will be made to that value. 
+
+```js  
+require('dotenv').config({ path: ['.env.local', '.env'] })
+```
+
+##### quiet
+
+Default: `false`
+
+Suppress runtime logging message.
+
+```js
+// index.js
+require('dotenv').config({ quiet: false }) // change to true to suppress
+console.log(`Hello ${process.env.HELLO}`)
+```
+
+```ini
+# .env
+.env
+```
+
+```sh
+$ node index.js
+[dotenv@17.0.0] injecting env (1) from .env
+Hello World
+```
+
+##### encoding
+
+Default: `utf8`
+
+Specify the encoding of your file containing environment variables.
+
+```js
+require('dotenv').config({ encoding: 'latin1' })
+```
+
+##### debug
+
+Default: `false`
+
+Turn on logging to help debug why certain keys or values are not being set as you expect.
+
+```js
+require('dotenv').config({ debug: process.env.DEBUG })
+```
+
+##### override
+
+Default: `false`
+
+Override any environment variables that have already been set on your machine with values from your .env file(s). If multiple files have been provided in `option.path` the override will also be used as each file is combined with the next. Without `override` being set, the first value wins. With `override` set the last value wins. 
+
+```js
+require('dotenv').config({ override: true })
+```
+
+##### processEnv
+
+Default: `process.env`
+
+Specify an object to write your environment variables to. Defaults to `process.env` environment variables.
+
+```js
+const myObject = {}
+require('dotenv').config({ processEnv: myObject })
+
+console.log(myObject) // values from .env
+console.log(process.env) // this was not changed or written to
+```
+
+### Parse
+
+The engine which parses the contents of your file containing environment
+variables is available to use. It accepts a String or Buffer and will return
+an Object with the parsed keys and values.
+
+```js
+const dotenv = require('dotenv')
+const buf = Buffer.from('BASIC=basic')
+const config = dotenv.parse(buf) // will return an object
+console.log(typeof config, config) // object { BASIC : 'basic' }
+```
+
+#### Options
+
+##### debug
+
+Default: `false`
+
+Turn on logging to help debug why certain keys or values are not being set as you expect.
+
+```js
+const dotenv = require('dotenv')
+const buf = Buffer.from('hello world')
+const opt = { debug: true }
+const config = dotenv.parse(buf, opt)
+// expect a debug message because the buffer is not in KEY=VAL form
+```
+
+### Populate
+
+The engine which populates the contents of your .env file to `process.env` is available for use. It accepts a target, a source, and options. This is useful for power users who want to supply their own objects.
+
+For example, customizing the source:
+
+```js
+const dotenv = require('dotenv')
+const parsed = { HELLO: 'world' }
+
+dotenv.populate(process.env, parsed)
+
+console.log(process.env.HELLO) // world
+```
+
+For example, customizing the source AND target:
+
+```js
+const dotenv = require('dotenv')
+const parsed = { HELLO: 'universe' }
+const target = { HELLO: 'world' } // empty object
+
+dotenv.populate(target, parsed, { override: true, debug: true })
+
+console.log(target) // { HELLO: 'universe' }
+```
+
+#### options
+
+##### Debug
+
+Default: `false`
+
+Turn on logging to help debug why certain keys or values are not being populated as you expect.
+
+##### override
+
+Default: `false`
+
+Override any environment variables that have already been set.
+
+## ❓ FAQ
+
+### Why is the `.env` file not loading my environment variables successfully?
+
+Most likely your `.env` file is not in the correct place. [See this stack overflow](https://stackoverflow.com/questions/42335016/dotenv-file-is-not-loading-environment-variables).
+
+Turn on debug mode and try again..
+
+```js
+require('dotenv').config({ debug: true })
+```
+
+You will receive a helpful error outputted to your console.
+
+### Should I commit my `.env` file?
+
+No. We **strongly** recommend against committing your `.env` file to version
+control. It should only include environment-specific values such as database
+passwords or API keys. Your production database should have a different
+password than your development database.
+
+### Should I have multiple `.env` files?
+
+We recommend creating one `.env` file per environment. Use `.env` for local/development, `.env.production` for production and so on. This still follows the twelve factor principles as each is attributed individually to its own environment. Avoid custom set ups that work in inheritance somehow (`.env.production` inherits values form `.env` for example). It is better to duplicate values if necessary across each `.env.environment` file.
+
+> In a twelve-factor app, env vars are granular controls, each fully orthogonal to other env vars. They are never grouped together as “environments”, but instead are independently managed for each deploy. This is a model that scales up smoothly as the app naturally expands into more deploys over its lifetime.
+>
+> – [The Twelve-Factor App](http://12factor.net/config)
+
+### What rules does the parsing engine follow?
+
+The parsing engine currently supports the following rules:
+
+- `BASIC=basic` becomes `{BASIC: 'basic'}`
+- empty lines are skipped
+- lines beginning with `#` are treated as comments
+- `#` marks the beginning of a comment (unless when the value is wrapped in quotes)
+- empty values become empty strings (`EMPTY=` becomes `{EMPTY: ''}`)
+- inner quotes are maintained (think JSON) (`JSON={"foo": "bar"}` becomes `{JSON:"{\"foo\": \"bar\"}"`)
+- whitespace is removed from both ends of unquoted values (see more on [`trim`](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/Trim)) (`FOO=  some value  ` becomes `{FOO: 'some value'}`)
+- single and double quoted values are escaped (`SINGLE_QUOTE='quoted'` becomes `{SINGLE_QUOTE: "quoted"}`)
+- single and double quoted values maintain whitespace from both ends (`FOO="  some value  "` becomes `{FOO: '  some value  '}`)
+- double quoted values expand new lines (`MULTILINE="new\nline"` becomes
+
+```
+{MULTILINE: 'new
+line'}
+```
+
+- backticks are supported (`` BACKTICK_KEY=`This has 'single' and "double" quotes inside of it.` ``)
+
+### What happens to environment variables that were already set?
+
+By default, we will never modify any environment variables that have already been set. In particular, if there is a variable in your `.env` file which collides with one that already exists in your environment, then that variable will be skipped.
+
+If instead, you want to override `process.env` use the `override` option.
+
+```javascript
+require('dotenv').config({ override: true })
+```
+
+### How come my environment variables are not showing up for React?
+
+Your React code is run in Webpack, where the `fs` module or even the `process` global itself are not accessible out-of-the-box. `process.env` can only be injected through Webpack configuration.
+
+If you are using [`react-scripts`](https://www.npmjs.com/package/react-scripts), which is distributed through [`create-react-app`](https://create-react-app.dev/), it has dotenv built in but with a quirk. Preface your environment variables with `REACT_APP_`. See [this stack overflow](https://stackoverflow.com/questions/42182577/is-it-possible-to-use-dotenv-in-a-react-project) for more details.
+
+If you are using other frameworks (e.g. Next.js, Gatsby...), you need to consult their documentation for how to inject environment variables into the client.
+
+### Can I customize/write plugins for dotenv?
+
+Yes! `dotenv.config()` returns an object representing the parsed `.env` file. This gives you everything you need to continue setting values on `process.env`. For example:
+
+```js
+const dotenv = require('dotenv')
+const variableExpansion = require('dotenv-expand')
+const myEnv = dotenv.config()
+variableExpansion(myEnv)
+```
+
+### How do I use dotenv with `import`?
+
+Simply..
+
+```javascript
+// index.mjs (ESM)
+import 'dotenv/config' // see https://github.com/motdotla/dotenv#how-do-i-use-dotenv-with-import
+import express from 'express'
+```
+
+A little background..
+
+> When you run a module containing an `import` declaration, the modules it imports are loaded first, then each module body is executed in a depth-first traversal of the dependency graph, avoiding cycles by skipping anything already executed.
+>
+> – [ES6 In Depth: Modules](https://hacks.mozilla.org/2015/08/es6-in-depth-modules/)
+
+What does this mean in plain language? It means you would think the following would work but it won't.
+
+`errorReporter.mjs`:
+```js
+class Client {
+  constructor (apiKey) {
+    console.log('apiKey', apiKey)
+
+    this.apiKey = apiKey
+  }
+}
+
+export default new Client(process.env.API_KEY)
+```
+`index.mjs`:
+```js
+// Note: this is INCORRECT and will not work
+import * as dotenv from 'dotenv'
+dotenv.config()
+
+import errorReporter from './errorReporter.mjs' // process.env.API_KEY will be blank!
+```
+
+`process.env.API_KEY` will be blank.
+
+Instead, `index.mjs` should be written as..
+
+```js
+import 'dotenv/config'
+
+import errorReporter from './errorReporter.mjs'
+```
+
+Does that make sense? It's a bit unintuitive, but it is how importing of ES6 modules work. Here is a [working example of this pitfall](https://github.com/dotenv-org/examples/tree/master/usage/dotenv-es6-import-pitfall).
+
+There are two alternatives to this approach:
+
+1. Preload with dotenvx: `dotenvx run -- node index.js` (_Note: you do not need to `import` dotenv with this approach_)
+2. Create a separate file that will execute `config` first as outlined in [this comment on #133](https://github.com/motdotla/dotenv/issues/133#issuecomment-255298822)
+
+### Why am I getting the error `Module not found: Error: Can't resolve 'crypto|os|path'`?
+
+You are using dotenv on the front-end and have not included a polyfill. Webpack < 5 used to include these for you. Do the following:
+
+```bash
+npm install node-polyfill-webpack-plugin
+```
+
+Configure your `webpack.config.js` to something like the following.
+
+```js
+require('dotenv').config()
+
+const path = require('path');
+const webpack = require('webpack')
+
+const NodePolyfillPlugin = require('node-polyfill-webpack-plugin')
+
+module.exports = {
+  mode: 'development',
+  entry: './src/index.ts',
+  output: {
+    filename: 'bundle.js',
+    path: path.resolve(__dirname, 'dist'),
+  },
+  plugins: [
+    new NodePolyfillPlugin(),
+    new webpack.DefinePlugin({
+      'process.env': {
+        HELLO: JSON.stringify(process.env.HELLO)
+      }
+    }),
+  ]
+};
+```
+
+Alternatively, just use [dotenv-webpack](https://github.com/mrsteele/dotenv-webpack) which does this and more behind the scenes for you.
+
+### What about variable expansion?
+
+Try [dotenv-expand](https://github.com/motdotla/dotenv-expand)
+
+### What about syncing and securing .env files?
+
+Use [dotenvx](https://github.com/dotenvx/dotenvx) to unlock syncing encrypted .env files over git.
+
+### What if I accidentally commit my `.env` file to code?
+
+Remove it, [remove git history](https://docs.github.com/en/authentication/keeping-your-account-and-data-secure/removing-sensitive-data-from-a-repository) and then install the [git pre-commit hook](https://github.com/dotenvx/dotenvx#pre-commit) to prevent this from ever happening again. 
+
+```
+brew install dotenvx/brew/dotenvx
+dotenvx precommit --install
+```
+
+### How can I prevent committing my `.env` file to a Docker build?
+
+Use the [docker prebuild hook](https://dotenvx.com/docs/features/prebuild).
+
+```bash
+# Dockerfile
+...
+RUN curl -fsS https://dotenvx.sh/ | sh
+...
+RUN dotenvx prebuild
+CMD ["dotenvx", "run", "--", "node", "index.js"]
+```
+
+## Contributing Guide
+
+See [CONTRIBUTING.md](CONTRIBUTING.md)
+
+## CHANGELOG
+
+See [CHANGELOG.md](CHANGELOG.md)
+
+## Who's using dotenv?
+
+[These npm modules depend on it.](https://www.npmjs.com/browse/depended/dotenv)
+
+Projects that expand it often use the [keyword "dotenv" on npm](https://www.npmjs.com/search?q=keywords:dotenv).
diff --git a/backend/node_modules/dotenv/SECURITY.md b/backend/node_modules/dotenv/SECURITY.md
new file mode 100644
index 0000000..237a8ce
--- /dev/null
+++ b/backend/node_modules/dotenv/SECURITY.md
@@ -0,0 +1 @@
+Please report any security vulnerabilities to security@dotenvx.com. 
diff --git a/backend/node_modules/dotenv/config.d.ts b/backend/node_modules/dotenv/config.d.ts
new file mode 100644
index 0000000..cb0ff5c
--- /dev/null
+++ b/backend/node_modules/dotenv/config.d.ts
@@ -0,0 +1 @@
+export {};
diff --git a/backend/node_modules/dotenv/config.js b/backend/node_modules/dotenv/config.js
new file mode 100644
index 0000000..b0b5576
--- /dev/null
+++ b/backend/node_modules/dotenv/config.js
@@ -0,0 +1,9 @@
+(function () {
+  require('./lib/main').config(
+    Object.assign(
+      {},
+      require('./lib/env-options'),
+      require('./lib/cli-options')(process.argv)
+    )
+  )
+})()
diff --git a/backend/node_modules/dotenv/lib/cli-options.js b/backend/node_modules/dotenv/lib/cli-options.js
new file mode 100644
index 0000000..b6e40db
--- /dev/null
+++ b/backend/node_modules/dotenv/lib/cli-options.js
@@ -0,0 +1,17 @@
+const re = /^dotenv_config_(encoding|path|quiet|debug|override|DOTENV_KEY)=(.+)$/
+
+module.exports = function optionMatcher (args) {
+  const options = args.reduce(function (acc, cur) {
+    const matches = cur.match(re)
+    if (matches) {
+      acc[matches[1]] = matches[2]
+    }
+    return acc
+  }, {})
+
+  if (!('quiet' in options)) {
+    options.quiet = 'true'
+  }
+
+  return options
+}
diff --git a/backend/node_modules/dotenv/lib/env-options.js b/backend/node_modules/dotenv/lib/env-options.js
new file mode 100644
index 0000000..5dcee8a
--- /dev/null
+++ b/backend/node_modules/dotenv/lib/env-options.js
@@ -0,0 +1,28 @@
+// ../config.js accepts options via environment variables
+const options = {}
+
+if (process.env.DOTENV_CONFIG_ENCODING != null) {
+  options.encoding = process.env.DOTENV_CONFIG_ENCODING
+}
+
+if (process.env.DOTENV_CONFIG_PATH != null) {
+  options.path = process.env.DOTENV_CONFIG_PATH
+}
+
+if (process.env.DOTENV_CONFIG_QUIET != null) {
+  options.quiet = process.env.DOTENV_CONFIG_QUIET
+}
+
+if (process.env.DOTENV_CONFIG_DEBUG != null) {
+  options.debug = process.env.DOTENV_CONFIG_DEBUG
+}
+
+if (process.env.DOTENV_CONFIG_OVERRIDE != null) {
+  options.override = process.env.DOTENV_CONFIG_OVERRIDE
+}
+
+if (process.env.DOTENV_CONFIG_DOTENV_KEY != null) {
+  options.DOTENV_KEY = process.env.DOTENV_CONFIG_DOTENV_KEY
+}
+
+module.exports = options
diff --git a/backend/node_modules/dotenv/lib/main.d.ts b/backend/node_modules/dotenv/lib/main.d.ts
new file mode 100644
index 0000000..a400772
--- /dev/null
+++ b/backend/node_modules/dotenv/lib/main.d.ts
@@ -0,0 +1,170 @@
+// TypeScript Version: 3.0
+/// <reference types="node" />
+import type { URL } from 'url';
+
+export interface DotenvParseOutput {
+  [name: string]: string;
+}
+
+export interface DotenvPopulateOutput {
+  [name: string]: string;
+}
+
+/**
+ * Parses a string or buffer in the .env file format into an object.
+ *
+ * See https://dotenvx.com/docs
+ *
+ * @param src - contents to be parsed. example: `'DB_HOST=localhost'`
+ * @returns an object with keys and values based on `src`. example: `{ DB_HOST : 'localhost' }`
+ */
+export function parse<T extends DotenvParseOutput = DotenvParseOutput>(
+  src: string | Buffer
+): T;
+
+export interface DotenvConfigOptions {
+  /**
+   * Default: `path.resolve(process.cwd(), '.env')`
+   *
+   * Specify a custom path if your file containing environment variables is located elsewhere.
+   * Can also be an array of strings, specifying multiple paths.
+   *
+   * example: `require('dotenv').config({ path: '/custom/path/to/.env' })`
+   * example: `require('dotenv').config({ path: ['/path/to/first.env', '/path/to/second.env'] })`
+   */
+  path?: string | string[] | URL;
+
+  /**
+   * Default: `utf8`
+   *
+   * Specify the encoding of your file containing environment variables.
+   *
+   * example: `require('dotenv').config({ encoding: 'latin1' })`
+   */
+  encoding?: string;
+
+  /**
+   * Default: `false`
+   *
+   * Suppress all output (except errors).
+   *
+   * example: `require('dotenv').config({ quiet: true })`
+   */
+  quiet?: boolean;
+
+  /**
+   * Default: `false`
+   *
+   * Turn on logging to help debug why certain keys or values are not being set as you expect.
+   *
+   * example: `require('dotenv').config({ debug: process.env.DEBUG })`
+   */
+  debug?: boolean;
+
+  /**
+   * Default: `false`
+   *
+   * Override any environment variables that have already been set on your machine with values from your .env file.
+   *
+   * example: `require('dotenv').config({ override: true })`
+   */
+  override?: boolean;
+
+  /**
+   * Default: `process.env`
+   *
+   * Specify an object to write your secrets to. Defaults to process.env environment variables.
+   *
+   * example: `const processEnv = {}; require('dotenv').config({ processEnv: processEnv })`
+   */
+  processEnv?: DotenvPopulateInput;
+
+  /**
+   * Default: `undefined`
+   *
+   * Pass the DOTENV_KEY directly to config options. Defaults to looking for process.env.DOTENV_KEY environment variable. Note this only applies to decrypting .env.vault files. If passed as null or undefined, or not passed at all, dotenv falls back to its traditional job of parsing a .env file.
+   *
+   * example: `require('dotenv').config({ DOTENV_KEY: 'dotenv://:key_1234…@dotenvx.com/vault/.env.vault?environment=production' })`
+   */
+  DOTENV_KEY?: string;
+}
+
+export interface DotenvConfigOutput {
+  error?: Error;
+  parsed?: DotenvParseOutput;
+}
+
+export interface DotenvPopulateOptions {
+  /**
+   * Default: `false`
+   *
+   * Turn on logging to help debug why certain keys or values are not being set as you expect.
+   *
+   * example: `require('dotenv').config({ debug: process.env.DEBUG })`
+   */
+  debug?: boolean;
+
+  /**
+   * Default: `false`
+   *
+   * Override any environment variables that have already been set on your machine with values from your .env file.
+   *
+   * example: `require('dotenv').config({ override: true })`
+   */
+  override?: boolean;
+}
+
+export interface DotenvPopulateInput {
+  [name: string]: string;
+}
+
+/**
+ * Loads `.env` file contents into process.env by default. If `DOTENV_KEY` is present, it smartly attempts to load encrypted `.env.vault` file contents into process.env.
+ *
+ * See https://dotenvx.com/docs
+ *
+ * @param options - additional options. example: `{ path: './custom/path', encoding: 'latin1', quiet: false, debug: true, override: false }`
+ * @returns an object with a `parsed` key if successful or `error` key if an error occurred. example: { parsed: { KEY: 'value' } }
+ *
+ */
+export function config(options?: DotenvConfigOptions): DotenvConfigOutput;
+
+/**
+ * Loads `.env` file contents into process.env.
+ *
+ * See https://dotenvx.com/docs
+ *
+ * @param options - additional options. example: `{ path: './custom/path', encoding: 'latin1', quiet: false, debug: true, override: false }`
+ * @returns an object with a `parsed` key if successful or `error` key if an error occurred. example: { parsed: { KEY: 'value' } }
+ *
+ */
+export function configDotenv(options?: DotenvConfigOptions): DotenvConfigOutput;
+
+/**
+ * Loads `source` json contents into `target` like process.env.
+ *
+ * See https://dotenvx.com/docs
+ *
+ * @param processEnv - the target JSON object. in most cases use process.env but you can also pass your own JSON object
+ * @param parsed - the source JSON object
+ * @param options - additional options. example: `{ quiet: false, debug: true, override: false }`
+ * @returns an object with the keys and values that were actually set
+ *
+ */
+export function populate(
+  processEnv: DotenvPopulateInput,
+  parsed: DotenvPopulateInput,
+  options?: DotenvConfigOptions
+): DotenvPopulateOutput;
+
+/**
+ * Decrypt ciphertext
+ *
+ * See https://dotenvx.com/docs
+ *
+ * @param encrypted - the encrypted ciphertext string
+ * @param keyStr - the decryption key string
+ * @returns {string}
+ *
+ */
+export function decrypt(encrypted: string, keyStr: string): string;
diff --git a/backend/node_modules/dotenv/lib/main.js b/backend/node_modules/dotenv/lib/main.js
new file mode 100644
index 0000000..2e7124d
--- /dev/null
+++ b/backend/node_modules/dotenv/lib/main.js
@@ -0,0 +1,431 @@
+const fs = require('fs')
+const path = require('path')
+const os = require('os')
+const crypto = require('crypto')
+const packageJson = require('../package.json')
+
+const version = packageJson.version
+
+// Array of tips to display randomly
+const TIPS = [
+  '🔐 encrypt with Dotenvx: https://dotenvx.com',
+  '🔐 prevent committing .env to code: https://dotenvx.com/precommit',
+  '🔐 prevent building .env in docker: https://dotenvx.com/prebuild',
+  '📡 observe env with Radar: https://dotenvx.com/radar',
+  '📡 auto-backup env with Radar: https://dotenvx.com/radar',
+  '📡 version env with Radar: https://dotenvx.com/radar',
+  '🛠️  run anywhere with `dotenvx run -- yourcommand`',
+  '⚙️  specify custom .env file path with { path: \'/custom/path/.env\' }',
+  '⚙️  enable debug logging with { debug: true }',
+  '⚙️  override existing env vars with { override: true }',
+  '⚙️  suppress all logs with { quiet: true }',
+  '⚙️  write to custom object with { processEnv: myObject }',
+  '⚙️  load multiple .env files with { path: [\'.env.local\', \'.env\'] }'
+]
+
+// Get a random tip from the tips array
+function _getRandomTip () {
+  return TIPS[Math.floor(Math.random() * TIPS.length)]
+}
+
+function parseBoolean (value) {
+  if (typeof value === 'string') {
+    return !['false', '0', 'no', 'off', ''].includes(value.toLowerCase())
+  }
+  return Boolean(value)
+}
+
+function supportsAnsi () {
+  return process.stdout.isTTY // && process.env.TERM !== 'dumb'
+}
+
+function dim (text) {
+  return supportsAnsi() ? `\x1b[2m${text}\x1b[0m` : text
+}
+
+const LINE = /(?:^|^)\s*(?:export\s+)?([\w.-]+)(?:\s*=\s*?|:\s+?)(\s*'(?:\\'|[^'])*'|\s*"(?:\\"|[^"])*"|\s*`(?:\\`|[^`])*`|[^#\r\n]+)?\s*(?:#.*)?(?:$|$)/mg
+
+// Parse src into an Object
+function parse (src) {
+  const obj = {}
+
+  // Convert buffer to string
+  let lines = src.toString()
+
+  // Convert line breaks to same format
+  lines = lines.replace(/\r\n?/mg, '\n')
+
+  let match
+  while ((match = LINE.exec(lines)) != null) {
+    const key = match[1]
+
+    // Default undefined or null to empty string
+    let value = (match[2] || '')
+
+    // Remove whitespace
+    value = value.trim()
+
+    // Check if double quoted
+    const maybeQuote = value[0]
+
+    // Remove surrounding quotes
+    value = value.replace(/^(['"`])([\s\S]*)\1$/mg, '$2')
+
+    // Expand newlines if double quoted
+    if (maybeQuote === '"') {
+      value = value.replace(/\\n/g, '\n')
+      value = value.replace(/\\r/g, '\r')
+    }
+
+    // Add to object
+    obj[key] = value
+  }
+
+  return obj
+}
+
+function _parseVault (options) {
+  options = options || {}
+
+  const vaultPath = _vaultPath(options)
+  options.path = vaultPath // parse .env.vault
+  const result = DotenvModule.configDotenv(options)
+  if (!result.parsed) {
+    const err = new Error(`MISSING_DATA: Cannot parse ${vaultPath} for an unknown reason`)
+    err.code = 'MISSING_DATA'
+    throw err
+  }
+
+  // handle scenario for comma separated keys - for use with key rotation
+  // example: DOTENV_KEY="dotenv://:key_1234@dotenvx.com/vault/.env.vault?environment=prod,dotenv://:key_7890@dotenvx.com/vault/.env.vault?environment=prod"
+  const keys = _dotenvKey(options).split(',')
+  const length = keys.length
+
+  let decrypted
+  for (let i = 0; i < length; i++) {
+    try {
+      // Get full key
+      const key = keys[i].trim()
+
+      // Get instructions for decrypt
+      const attrs = _instructions(result, key)
+
+      // Decrypt
+      decrypted = DotenvModule.decrypt(attrs.ciphertext, attrs.key)
+
+      break
+    } catch (error) {
+      // last key
+      if (i + 1 >= length) {
+        throw error
+      }
+      // try next key
+    }
+  }
+
+  // Parse decrypted .env string
+  return DotenvModule.parse(decrypted)
+}
+
+function _warn (message) {
+  console.error(`[dotenv@${version}][WARN] ${message}`)
+}
+
+function _debug (message) {
+  console.log(`[dotenv@${version}][DEBUG] ${message}`)
+}
+
+function _log (message) {
+  console.log(`[dotenv@${version}] ${message}`)
+}
+
+function _dotenvKey (options) {
+  // prioritize developer directly setting options.DOTENV_KEY
+  if (options && options.DOTENV_KEY && options.DOTENV_KEY.length > 0) {
+    return options.DOTENV_KEY
+  }
+
+  // secondary infra already contains a DOTENV_KEY environment variable
+  if (process.env.DOTENV_KEY && process.env.DOTENV_KEY.length > 0) {
+    return process.env.DOTENV_KEY
+  }
+
+  // fallback to empty string
+  return ''
+}
+
+function _instructions (result, dotenvKey) {
+  // Parse DOTENV_KEY. Format is a URI
+  let uri
+  try {
+    uri = new URL(dotenvKey)
+  } catch (error) {
+    if (error.code === 'ERR_INVALID_URL') {
+      const err = new Error('INVALID_DOTENV_KEY: Wrong format. Must be in valid uri format like dotenv://:key_1234@dotenvx.com/vault/.env.vault?environment=development')
+      err.code = 'INVALID_DOTENV_KEY'
+      throw err
+    }
+
+    throw error
+  }
+
+  // Get decrypt key
+  const key = uri.password
+  if (!key) {
+    const err = new Error('INVALID_DOTENV_KEY: Missing key part')
+    err.code = 'INVALID_DOTENV_KEY'
+    throw err
+  }
+
+  // Get environment
+  const environment = uri.searchParams.get('environment')
+  if (!environment) {
+    const err = new Error('INVALID_DOTENV_KEY: Missing environment part')
+    err.code = 'INVALID_DOTENV_KEY'
+    throw err
+  }
+
+  // Get ciphertext payload
+  const environmentKey = `DOTENV_VAULT_${environment.toUpperCase()}`
+  const ciphertext = result.parsed[environmentKey] // DOTENV_VAULT_PRODUCTION
+  if (!ciphertext) {
+    const err = new Error(`NOT_FOUND_DOTENV_ENVIRONMENT: Cannot locate environment ${environmentKey} in your .env.vault file.`)
+    err.code = 'NOT_FOUND_DOTENV_ENVIRONMENT'
+    throw err
+  }
+
+  return { ciphertext, key }
+}
+
+function _vaultPath (options) {
+  let possibleVaultPath = null
+
+  if (options && options.path && options.path.length > 0) {
+    if (Array.isArray(options.path)) {
+      for (const filepath of options.path) {
+        if (fs.existsSync(filepath)) {
+          possibleVaultPath = filepath.endsWith('.vault') ? filepath : `${filepath}.vault`
+        }
+      }
+    } else {
+      possibleVaultPath = options.path.endsWith('.vault') ? options.path : `${options.path}.vault`
+    }
+  } else {
+    possibleVaultPath = path.resolve(process.cwd(), '.env.vault')
+  }
+
+  if (fs.existsSync(possibleVaultPath)) {
+    return possibleVaultPath
+  }
+
+  return null
+}
+
+function _resolveHome (envPath) {
+  return envPath[0] === '~' ? path.join(os.homedir(), envPath.slice(1)) : envPath
+}
+
+function _configVault (options) {
+  const debug = parseBoolean(process.env.DOTENV_CONFIG_DEBUG || (options && options.debug))
+  const quiet = parseBoolean(process.env.DOTENV_CONFIG_QUIET || (options && options.quiet))
+
+  if (debug || !quiet) {
+    _log('Loading env from encrypted .env.vault')
+  }
+
+  const parsed = DotenvModule._parseVault(options)
+
+  let processEnv = process.env
+  if (options && options.processEnv != null) {
+    processEnv = options.processEnv
+  }
+
+  DotenvModule.populate(processEnv, parsed, options)
+
+  return { parsed }
+}
+
+function configDotenv (options) {
+  const dotenvPath = path.resolve(process.cwd(), '.env')
+  let encoding = 'utf8'
+  let processEnv = process.env
+  if (options && options.processEnv != null) {
+    processEnv = options.processEnv
+  }
+  let debug = parseBoolean(processEnv.DOTENV_CONFIG_DEBUG || (options && options.debug))
+  let quiet = parseBoolean(processEnv.DOTENV_CONFIG_QUIET || (options && options.quiet))
+
+  if (options && options.encoding) {
+    encoding = options.encoding
+  } else {
+    if (debug) {
+      _debug('No encoding is specified. UTF-8 is used by default')
+    }
+  }
+
+  let optionPaths = [dotenvPath] // default, look for .env
+  if (options && options.path) {
+    if (!Array.isArray(options.path)) {
+      optionPaths = [_resolveHome(options.path)]
+    } else {
+      optionPaths = [] // reset default
+      for (const filepath of options.path) {
+        optionPaths.push(_resolveHome(filepath))
+      }
+    }
+  }
+
+  // Build the parsed data in a temporary object (because we need to return it).  Once we have the final
+  // parsed data, we will combine it with process.env (or options.processEnv if provided).
+  let lastError
+  const parsedAll = {}
+  for (const path of optionPaths) {
+    try {
+      // Specifying an encoding returns a string instead of a buffer
+      const parsed = DotenvModule.parse(fs.readFileSync(path, { encoding }))
+
+      DotenvModule.populate(parsedAll, parsed, options)
+    } catch (e) {
+      if (debug) {
+        _debug(`Failed to load ${path} ${e.message}`)
+      }
+      lastError = e
+    }
+  }
+
+  const populated = DotenvModule.populate(processEnv, parsedAll, options)
+
+  // handle user settings DOTENV_CONFIG_ options inside .env file(s)
+  debug = parseBoolean(processEnv.DOTENV_CONFIG_DEBUG || debug)
+  quiet = parseBoolean(processEnv.DOTENV_CONFIG_QUIET || quiet)
+
+  if (debug || !quiet) {
+    const keysCount = Object.keys(populated).length
+    const shortPaths = []
+    for (const filePath of optionPaths) {
+      try {
+        const relative = path.relative(process.cwd(), filePath)
+        shortPaths.push(relative)
+      } catch (e) {
+        if (debug) {
+          _debug(`Failed to load ${filePath} ${e.message}`)
+        }
+        lastError = e
+      }
+    }
+
+    _log(`injecting env (${keysCount}) from ${shortPaths.join(',')} ${dim(`-- tip: ${_getRandomTip()}`)}`)
+  }
+
+  if (lastError) {
+    return { parsed: parsedAll, error: lastError }
+  } else {
+    return { parsed: parsedAll }
+  }
+}
+
+// Populates process.env from .env file
+function config (options) {
+  // fallback to original dotenv if DOTENV_KEY is not set
+  if (_dotenvKey(options).length === 0) {
+    return DotenvModule.configDotenv(options)
+  }
+
+  const vaultPath = _vaultPath(options)
+
+  // dotenvKey exists but .env.vault file does not exist
+  if (!vaultPath) {
+    _warn(`You set DOTENV_KEY but you are missing a .env.vault file at ${vaultPath}. Did you forget to build it?`)
+
+    return DotenvModule.configDotenv(options)
+  }
+
+  return DotenvModule._configVault(options)
+}
+
+function decrypt (encrypted, keyStr) {
+  const key = Buffer.from(keyStr.slice(-64), 'hex')
+  let ciphertext = Buffer.from(encrypted, 'base64')
+
+  const nonce = ciphertext.subarray(0, 12)
+  const authTag = ciphertext.subarray(-16)
+  ciphertext = ciphertext.subarray(12, -16)
+
+  try {
+    const aesgcm = crypto.createDecipheriv('aes-256-gcm', key, nonce)
+    aesgcm.setAuthTag(authTag)
+    return `${aesgcm.update(ciphertext)}${aesgcm.final()}`
+  } catch (error) {
+    const isRange = error instanceof RangeError
+    const invalidKeyLength = error.message === 'Invalid key length'
+    const decryptionFailed = error.message === 'Unsupported state or unable to authenticate data'
+
+    if (isRange || invalidKeyLength) {
+      const err = new Error('INVALID_DOTENV_KEY: It must be 64 characters long (or more)')
+      err.code = 'INVALID_DOTENV_KEY'
+      throw err
+    } else if (decryptionFailed) {
+      const err = new Error('DECRYPTION_FAILED: Please check your DOTENV_KEY')
+      err.code = 'DECRYPTION_FAILED'
+      throw err
+    } else {
+      throw error
+    }
+  }
+}
+
+// Populate process.env with parsed values
+function populate (processEnv, parsed, options = {}) {
+  const debug = Boolean(options && options.debug)
+  const override = Boolean(options && options.override)
+  const populated = {}
+
+  if (typeof parsed !== 'object') {
+    const err = new Error('OBJECT_REQUIRED: Please check the processEnv argument being passed to populate')
+    err.code = 'OBJECT_REQUIRED'
+    throw err
+  }
+
+  // Set process.env
+  for (const key of Object.keys(parsed)) {
+    if (Object.prototype.hasOwnProperty.call(processEnv, key)) {
+      if (override === true) {
+        processEnv[key] = parsed[key]
+        populated[key] = parsed[key]
+      }
+
+      if (debug) {
+        if (override === true) {
+          _debug(`"${key}" is already defined and WAS overwritten`)
+        } else {
+          _debug(`"${key}" is already defined and was NOT overwritten`)
+        }
+      }
+    } else {
+      processEnv[key] = parsed[key]
+      populated[key] = parsed[key]
+    }
+  }
+
+  return populated
+}
+
+const DotenvModule = {
+  configDotenv,
+  _configVault,
+  _parseVault,
+  config,
+  decrypt,
+  parse,
+  populate
+}
+
+module.exports.configDotenv = DotenvModule.configDotenv
+module.exports._configVault = DotenvModule._configVault
+module.exports._parseVault = DotenvModule._parseVault
+module.exports.config = DotenvModule.config
+module.exports.decrypt = DotenvModule.decrypt
+module.exports.parse = DotenvModule.parse
+module.exports.populate = DotenvModule.populate
+
+module.exports = DotenvModule
diff --git a/backend/node_modules/dotenv/package.json b/backend/node_modules/dotenv/package.json
new file mode 100644
index 0000000..d6b9899
--- /dev/null
+++ b/backend/node_modules/dotenv/package.json
@@ -0,0 +1,62 @@
+{
+  "name": "dotenv",
+  "version": "17.2.2",
+  "description": "Loads environment variables from .env file",
+  "main": "lib/main.js",
+  "types": "lib/main.d.ts",
+  "exports": {
+    ".": {
+      "types": "./lib/main.d.ts",
+      "require": "./lib/main.js",
+      "default": "./lib/main.js"
+    },
+    "./config": "./config.js",
+    "./config.js": "./config.js",
+    "./lib/env-options": "./lib/env-options.js",
+    "./lib/env-options.js": "./lib/env-options.js",
+    "./lib/cli-options": "./lib/cli-options.js",
+    "./lib/cli-options.js": "./lib/cli-options.js",
+    "./package.json": "./package.json"
+  },
+  "scripts": {
+    "dts-check": "tsc --project tests/types/tsconfig.json",
+    "lint": "standard",
+    "pretest": "npm run lint && npm run dts-check",
+    "test": "tap run --allow-empty-coverage --disable-coverage --timeout=60000",
+    "test:coverage": "tap run --show-full-coverage --timeout=60000 --coverage-report=text --coverage-report=lcov",
+    "prerelease": "npm test",
+    "release": "standard-version"
+  },
+  "repository": {
+    "type": "git",
+    "url": "git://github.com/motdotla/dotenv.git"
+  },
+  "homepage": "https://github.com/motdotla/dotenv#readme",
+  "funding": "https://dotenvx.com",
+  "keywords": [
+    "dotenv",
+    "env",
+    ".env",
+    "environment",
+    "variables",
+    "config",
+    "settings"
+  ],
+  "readmeFilename": "README.md",
+  "license": "BSD-2-Clause",
+  "devDependencies": {
+    "@types/node": "^18.11.3",
+    "decache": "^4.6.2",
+    "sinon": "^14.0.1",
+    "standard": "^17.0.0",
+    "standard-version": "^9.5.0",
+    "tap": "^19.2.0",
+    "typescript": "^4.8.4"
+  },
+  "engines": {
+    "node": ">=12"
+  },
+  "browser": {
+    "fs": false
+  }
+}
diff --git a/backend/node_modules/dunder-proto/.eslintrc b/backend/node_modules/dunder-proto/.eslintrc
new file mode 100644
index 0000000..3b5d9e9
--- /dev/null
+++ b/backend/node_modules/dunder-proto/.eslintrc
@@ -0,0 +1,5 @@
+{
+	"root": true,
+
+	"extends": "@ljharb",
+}
diff --git a/backend/node_modules/dunder-proto/.github/FUNDING.yml b/backend/node_modules/dunder-proto/.github/FUNDING.yml
new file mode 100644
index 0000000..8a1d7b0
--- /dev/null
+++ b/backend/node_modules/dunder-proto/.github/FUNDING.yml
@@ -0,0 +1,12 @@
+# These are supported funding model platforms
+
+github: [ljharb]
+patreon: # Replace with a single Patreon username
+open_collective: # Replace with a single Open Collective username
+ko_fi: # Replace with a single Ko-fi username
+tidelift: npm/dunder-proto
+community_bridge: # Replace with a single Community Bridge project-name e.g., cloud-foundry
+liberapay: # Replace with a single Liberapay username
+issuehunt: # Replace with a single IssueHunt username
+otechie: # Replace with a single Otechie username
+custom: # Replace with up to 4 custom sponsorship URLs e.g., ['link1', 'link2']
diff --git a/backend/node_modules/dunder-proto/.nycrc b/backend/node_modules/dunder-proto/.nycrc
new file mode 100644
index 0000000..1826526
--- /dev/null
+++ b/backend/node_modules/dunder-proto/.nycrc
@@ -0,0 +1,13 @@
+{
+	"all": true,
+	"check-coverage": false,
+	"reporter": ["text-summary", "text", "html", "json"],
+	"lines": 86,
+	"statements": 85.93,
+	"functions": 82.43,
+	"branches": 76.06,
+	"exclude": [
+		"coverage",
+		"test"
+	]
+}
diff --git a/backend/node_modules/dunder-proto/CHANGELOG.md b/backend/node_modules/dunder-proto/CHANGELOG.md
new file mode 100644
index 0000000..9b8b2f8
--- /dev/null
+++ b/backend/node_modules/dunder-proto/CHANGELOG.md
@@ -0,0 +1,24 @@
+# Changelog
+
+All notable changes to this project will be documented in this file.
+
+The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/)
+and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
+
+## [v1.0.1](https://github.com/es-shims/dunder-proto/compare/v1.0.0...v1.0.1) - 2024-12-16
+
+### Commits
+
+- [Fix] do not crash when `--disable-proto=throw` [`6c367d9`](https://github.com/es-shims/dunder-proto/commit/6c367d919bc1604778689a297bbdbfea65752847)
+- [Tests] ensure noproto tests only use the current version of dunder-proto [`b02365b`](https://github.com/es-shims/dunder-proto/commit/b02365b9cf889c4a2cac7be0c3cfc90a789af36c)
+- [Dev Deps] update `@arethetypeswrong/cli`, `@types/tape` [`e3c5c3b`](https://github.com/es-shims/dunder-proto/commit/e3c5c3bd81cf8cef7dff2eca19e558f0e307f666)
+- [Deps] update `call-bind-apply-helpers` [`19f1da0`](https://github.com/es-shims/dunder-proto/commit/19f1da028b8dd0d05c85bfd8f7eed2819b686450)
+
+## v1.0.0 - 2024-12-06
+
+### Commits
+
+- Initial implementation, tests, readme, types [`a5b74b0`](https://github.com/es-shims/dunder-proto/commit/a5b74b0082f5270cb0905cd9a2e533cee7498373)
+- Initial commit [`73fb5a3`](https://github.com/es-shims/dunder-proto/commit/73fb5a353b51ac2ab00c9fdeb0114daffd4c07a8)
+- npm init [`80152dc`](https://github.com/es-shims/dunder-proto/commit/80152dc98155da4eb046d9f67a87ed96e8280a1d)
+- Only apps should have lockfiles [`03e6660`](https://github.com/es-shims/dunder-proto/commit/03e6660a1d70dc401f3e217a031475ec537243dd)
diff --git a/backend/node_modules/dunder-proto/LICENSE b/backend/node_modules/dunder-proto/LICENSE
new file mode 100644
index 0000000..34995e7
--- /dev/null
+++ b/backend/node_modules/dunder-proto/LICENSE
@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2024 ECMAScript Shims
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
diff --git a/backend/node_modules/dunder-proto/README.md b/backend/node_modules/dunder-proto/README.md
new file mode 100644
index 0000000..44b80a2
--- /dev/null
+++ b/backend/node_modules/dunder-proto/README.md
@@ -0,0 +1,54 @@
+# dunder-proto <sup>[![Version Badge][npm-version-svg]][package-url]</sup>
+
+[![github actions][actions-image]][actions-url]
+[![coverage][codecov-image]][codecov-url]
+[![License][license-image]][license-url]
+[![Downloads][downloads-image]][downloads-url]
+
+[![npm badge][npm-badge-png]][package-url]
+
+If available, the `Object.prototype.__proto__` accessor and mutator, call-bound.
+
+## Getting started
+
+```sh
+npm install --save dunder-proto
+```
+
+## Usage/Examples
+
+```js
+const assert = require('assert');
+const getDunder = require('dunder-proto/get');
+const setDunder = require('dunder-proto/set');
+
+const obj = {};
+
+assert.equal('toString' in obj, true);
+assert.equal(getDunder(obj), Object.prototype);
+
+setDunder(obj, null);
+
+assert.equal('toString' in obj, false);
+assert.equal(getDunder(obj), null);
+```
+
+## Tests
+
+Clone the repo, `npm install`, and run `npm test`
+
+[package-url]: https://npmjs.org/package/dunder-proto
+[npm-version-svg]: https://versionbadg.es/es-shims/dunder-proto.svg
+[deps-svg]: https://david-dm.org/es-shims/dunder-proto.svg
+[deps-url]: https://david-dm.org/es-shims/dunder-proto
+[dev-deps-svg]: https://david-dm.org/es-shims/dunder-proto/dev-status.svg
+[dev-deps-url]: https://david-dm.org/es-shims/dunder-proto#info=devDependencies
+[npm-badge-png]: https://nodei.co/npm/dunder-proto.png?downloads=true&stars=true
+[license-image]: https://img.shields.io/npm/l/dunder-proto.svg
+[license-url]: LICENSE
+[downloads-image]: https://img.shields.io/npm/dm/dunder-proto.svg
+[downloads-url]: https://npm-stat.com/charts.html?package=dunder-proto
+[codecov-image]: https://codecov.io/gh/es-shims/dunder-proto/branch/main/graphs/badge.svg
+[codecov-url]: https://app.codecov.io/gh/es-shims/dunder-proto/
+[actions-image]: https://img.shields.io/endpoint?url=https://github-actions-badge-u3jn4tfpocch.runkit.sh/es-shims/dunder-proto
+[actions-url]: https://github.com/es-shims/dunder-proto/actions
diff --git a/backend/node_modules/dunder-proto/get.d.ts b/backend/node_modules/dunder-proto/get.d.ts
new file mode 100644
index 0000000..c7e14d2
--- /dev/null
+++ b/backend/node_modules/dunder-proto/get.d.ts
@@ -0,0 +1,5 @@
+declare function getDunderProto(target: {}): object | null;
+
+declare const x: false | typeof getDunderProto;
+
+export = x;
\ No newline at end of file
diff --git a/backend/node_modules/dunder-proto/get.js b/backend/node_modules/dunder-proto/get.js
new file mode 100644
index 0000000..45093df
--- /dev/null
+++ b/backend/node_modules/dunder-proto/get.js
@@ -0,0 +1,30 @@
+'use strict';
+
+var callBind = require('call-bind-apply-helpers');
+var gOPD = require('gopd');
+
+var hasProtoAccessor;
+try {
+	// eslint-disable-next-line no-extra-parens, no-proto
+	hasProtoAccessor = /** @type {{ __proto__?: typeof Array.prototype }} */ ([]).__proto__ === Array.prototype;
+} catch (e) {
+	if (!e || typeof e !== 'object' || !('code' in e) || e.code !== 'ERR_PROTO_ACCESS') {
+		throw e;
+	}
+}
+
+// eslint-disable-next-line no-extra-parens
+var desc = !!hasProtoAccessor && gOPD && gOPD(Object.prototype, /** @type {keyof typeof Object.prototype} */ ('__proto__'));
+
+var $Object = Object;
+var $getPrototypeOf = $Object.getPrototypeOf;
+
+/** @type {import('./get')} */
+module.exports = desc && typeof desc.get === 'function'
+	? callBind([desc.get])
+	: typeof $getPrototypeOf === 'function'
+		? /** @type {import('./get')} */ function getDunder(value) {
+			// eslint-disable-next-line eqeqeq
+			return $getPrototypeOf(value == null ? value : $Object(value));
+		}
+		: false;
diff --git a/backend/node_modules/dunder-proto/package.json b/backend/node_modules/dunder-proto/package.json
new file mode 100644
index 0000000..04a4036
--- /dev/null
+++ b/backend/node_modules/dunder-proto/package.json
@@ -0,0 +1,76 @@
+{
+	"name": "dunder-proto",
+	"version": "1.0.1",
+	"description": "If available, the `Object.prototype.__proto__` accessor and mutator, call-bound",
+	"main": false,
+	"exports": {
+		"./get": "./get.js",
+		"./set": "./set.js",
+		"./package.json": "./package.json"
+	},
+	"sideEffects": false,
+	"scripts": {
+		"prepack": "npmignore --auto --commentLines=autogenerated",
+		"prepublish": "not-in-publish || npm run prepublishOnly",
+		"prepublishOnly": "safe-publish-latest",
+		"prelint": "evalmd README.md",
+		"lint": "eslint --ext=.js,.mjs .",
+		"postlint": "tsc -p . && attw -P",
+		"pretest": "npm run lint",
+		"tests-only": "nyc tape 'test/**/*.js'",
+		"test": "npm run tests-only",
+		"posttest": "npx npm@'>= 10.2' audit --production",
+		"version": "auto-changelog && git add CHANGELOG.md",
+		"postversion": "auto-changelog && git add CHANGELOG.md && git commit --no-edit --amend && git tag -f \"v$(node -e \"console.log(require('./package.json').version)\")\""
+	},
+	"repository": {
+		"type": "git",
+		"url": "git+https://github.com/es-shims/dunder-proto.git"
+	},
+	"author": "Jordan Harband <ljharb@gmail.com>",
+	"license": "MIT",
+	"bugs": {
+		"url": "https://github.com/es-shims/dunder-proto/issues"
+	},
+	"homepage": "https://github.com/es-shims/dunder-proto#readme",
+	"dependencies": {
+		"call-bind-apply-helpers": "^1.0.1",
+		"es-errors": "^1.3.0",
+		"gopd": "^1.2.0"
+	},
+	"devDependencies": {
+		"@arethetypeswrong/cli": "^0.17.1",
+		"@ljharb/eslint-config": "^21.1.1",
+		"@ljharb/tsconfig": "^0.2.2",
+		"@types/tape": "^5.7.0",
+		"auto-changelog": "^2.5.0",
+		"encoding": "^0.1.13",
+		"eslint": "=8.8.0",
+		"evalmd": "^0.0.19",
+		"in-publish": "^2.0.1",
+		"npmignore": "^0.3.1",
+		"nyc": "^10.3.2",
+		"safe-publish-latest": "^2.0.0",
+		"tape": "^5.9.0",
+		"typescript": "next"
+	},
+	"auto-changelog": {
+		"output": "CHANGELOG.md",
+		"template": "keepachangelog",
+		"unreleased": false,
+		"commitLimit": false,
+		"backfillLimit": false,
+		"hideCredit": true
+	},
+	"testling": {
+		"files": "test/index.js"
+	},
+	"publishConfig": {
+		"ignore": [
+			".github/workflows"
+		]
+	},
+	"engines": {
+		"node": ">= 0.4"
+	}
+}
diff --git a/backend/node_modules/dunder-proto/set.d.ts b/backend/node_modules/dunder-proto/set.d.ts
new file mode 100644
index 0000000..16bfdfe
--- /dev/null
+++ b/backend/node_modules/dunder-proto/set.d.ts
@@ -0,0 +1,5 @@
+declare function setDunderProto<P extends null | object>(target: {}, proto: P): P;
+
+declare const x: false | typeof setDunderProto;
+
+export = x;
\ No newline at end of file
diff --git a/backend/node_modules/dunder-proto/set.js b/backend/node_modules/dunder-proto/set.js
new file mode 100644
index 0000000..6085b6e
--- /dev/null
+++ b/backend/node_modules/dunder-proto/set.js
@@ -0,0 +1,35 @@
+'use strict';
+
+var callBind = require('call-bind-apply-helpers');
+var gOPD = require('gopd');
+var $TypeError = require('es-errors/type');
+
+/** @type {{ __proto__?: object | null }} */
+var obj = {};
+try {
+	obj.__proto__ = null; // eslint-disable-line no-proto
+} catch (e) {
+	if (!e || typeof e !== 'object' || !('code' in e) || e.code !== 'ERR_PROTO_ACCESS') {
+		throw e;
+	}
+}
+
+var hasProtoMutator = !('toString' in obj);
+
+// eslint-disable-next-line no-extra-parens
+var desc = gOPD && gOPD(Object.prototype, /** @type {keyof typeof Object.prototype} */ ('__proto__'));
+
+/** @type {import('./set')} */
+module.exports = hasProtoMutator && (
+// eslint-disable-next-line no-extra-parens
+	(!!desc && typeof desc.set === 'function' && /** @type {import('./set')} */ (callBind([desc.set])))
+	|| /** @type {import('./set')} */ function setDunder(object, proto) {
+		// this is node v0.10 or older, which doesn't have Object.setPrototypeOf and has undeniable __proto__
+		if (object == null) { // eslint-disable-line eqeqeq
+			throw new $TypeError('set Object.prototype.__proto__ called on null or undefined');
+		}
+		// eslint-disable-next-line no-proto, no-param-reassign, no-extra-parens
+		/** @type {{ __proto__?: object | null }} */ (object).__proto__ = proto;
+		return proto;
+	}
+);
diff --git a/backend/node_modules/dunder-proto/test/get.js b/backend/node_modules/dunder-proto/test/get.js
new file mode 100644
index 0000000..253f183
--- /dev/null
+++ b/backend/node_modules/dunder-proto/test/get.js
@@ -0,0 +1,34 @@
+'use strict';
+
+var test = require('tape');
+
+var getDunderProto = require('../get');
+
+test('getDunderProto', { skip: !getDunderProto }, function (t) {
+	if (!getDunderProto) {
+		throw 'should never happen; this is just for type narrowing'; // eslint-disable-line no-throw-literal
+	}
+
+	// @ts-expect-error
+	t['throws'](function () { getDunderProto(); }, TypeError, 'throws if no argument');
+	// @ts-expect-error
+	t['throws'](function () { getDunderProto(undefined); }, TypeError, 'throws with undefined');
+	// @ts-expect-error
+	t['throws'](function () { getDunderProto(null); }, TypeError, 'throws with null');
+
+	t.equal(getDunderProto({}), Object.prototype);
+	t.equal(getDunderProto([]), Array.prototype);
+	t.equal(getDunderProto(function () {}), Function.prototype);
+	t.equal(getDunderProto(/./g), RegExp.prototype);
+	t.equal(getDunderProto(42), Number.prototype);
+	t.equal(getDunderProto(true), Boolean.prototype);
+	t.equal(getDunderProto('foo'), String.prototype);
+
+	t.end();
+});
+
+test('no dunder proto', { skip: !!getDunderProto }, function (t) {
+	t.notOk('__proto__' in Object.prototype, 'no __proto__ in Object.prototype');
+
+	t.end();
+});
diff --git a/backend/node_modules/dunder-proto/test/index.js b/backend/node_modules/dunder-proto/test/index.js
new file mode 100644
index 0000000..08ff36f
--- /dev/null
+++ b/backend/node_modules/dunder-proto/test/index.js
@@ -0,0 +1,4 @@
+'use strict';
+
+require('./get');
+require('./set');
diff --git a/backend/node_modules/dunder-proto/test/set.js b/backend/node_modules/dunder-proto/test/set.js
new file mode 100644
index 0000000..c3bfe4d
--- /dev/null
+++ b/backend/node_modules/dunder-proto/test/set.js
@@ -0,0 +1,50 @@
+'use strict';
+
+var test = require('tape');
+
+var setDunderProto = require('../set');
+
+test('setDunderProto', { skip: !setDunderProto }, function (t) {
+	if (!setDunderProto) {
+		throw 'should never happen; this is just for type narrowing'; // eslint-disable-line no-throw-literal
+	}
+
+	// @ts-expect-error
+	t['throws'](function () { setDunderProto(); }, TypeError, 'throws if no arguments');
+	// @ts-expect-error
+	t['throws'](function () { setDunderProto(undefined); }, TypeError, 'throws with undefined and nothing');
+	// @ts-expect-error
+	t['throws'](function () { setDunderProto(undefined, undefined); }, TypeError, 'throws with undefined and undefined');
+	// @ts-expect-error
+	t['throws'](function () { setDunderProto(null); }, TypeError, 'throws with null and undefined');
+	// @ts-expect-error
+	t['throws'](function () { setDunderProto(null, undefined); }, TypeError, 'throws with null and undefined');
+
+	/** @type {{ inherited?: boolean }} */
+	var obj = {};
+	t.ok('toString' in obj, 'object initially has toString');
+
+	setDunderProto(obj, null);
+	t.notOk('toString' in obj, 'object no longer has toString');
+
+	t.notOk('inherited' in obj, 'object lacks inherited property');
+	setDunderProto(obj, { inherited: true });
+	t.equal(obj.inherited, true, 'object has inherited property');
+
+	t.end();
+});
+
+test('no dunder proto', { skip: !!setDunderProto }, function (t) {
+	if ('__proto__' in Object.prototype) {
+		t['throws'](
+			// @ts-expect-error
+			function () { ({}).__proto__ = null; }, // eslint-disable-line no-proto
+			Error,
+			'throws when setting Object.prototype.__proto__'
+		);
+	} else {
+		t.notOk('__proto__' in Object.prototype, 'no __proto__ in Object.prototype');
+	}
+
+	t.end();
+});
diff --git a/backend/node_modules/dunder-proto/tsconfig.json b/backend/node_modules/dunder-proto/tsconfig.json
new file mode 100644
index 0000000..dabbe23
--- /dev/null
+++ b/backend/node_modules/dunder-proto/tsconfig.json
@@ -0,0 +1,9 @@
+{
+	"extends": "@ljharb/tsconfig",
+	"compilerOptions": {
+		"target": "ES2021",
+	},
+	"exclude": [
+		"coverage",
+	],
+}
diff --git a/backend/node_modules/ee-first/LICENSE b/backend/node_modules/ee-first/LICENSE
new file mode 100644
index 0000000..a7ae8ee
--- /dev/null
+++ b/backend/node_modules/ee-first/LICENSE
@@ -0,0 +1,22 @@
+
+The MIT License (MIT)
+
+Copyright (c) 2014 Jonathan Ong me@jongleberry.com
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
diff --git a/backend/node_modules/ee-first/README.md b/backend/node_modules/ee-first/README.md
new file mode 100644
index 0000000..cbd2478
--- /dev/null
+++ b/backend/node_modules/ee-first/README.md
@@ -0,0 +1,80 @@
+# EE First
+
+[![NPM version][npm-image]][npm-url]
+[![Build status][travis-image]][travis-url]
+[![Test coverage][coveralls-image]][coveralls-url]
+[![License][license-image]][license-url]
+[![Downloads][downloads-image]][downloads-url]
+[![Gittip][gittip-image]][gittip-url]
+
+Get the first event in a set of event emitters and event pairs,
+then clean up after itself.
+
+## Install
+
+```sh
+$ npm install ee-first
+```
+
+## API
+
+```js
+var first = require('ee-first')
+```
+
+### first(arr, listener)
+
+Invoke `listener` on the first event from the list specified in `arr`. `arr` is
+an array of arrays, with each array in the format `[ee, ...event]`. `listener`
+will be called only once, the first time any of the given events are emitted. If
+`error` is one of the listened events, then if that fires first, the `listener`
+will be given the `err` argument.
+
+The `listener` is invoked as `listener(err, ee, event, args)`, where `err` is the
+first argument emitted from an `error` event, if applicable; `ee` is the event
+emitter that fired; `event` is the string event name that fired; and `args` is an
+array of the arguments that were emitted on the event.
+
+```js
+var ee1 = new EventEmitter()
+var ee2 = new EventEmitter()
+
+first([
+  [ee1, 'close', 'end', 'error'],
+  [ee2, 'error']
+], function (err, ee, event, args) {
+  // listener invoked
+})
+```
+
+#### .cancel()
+
+The group of listeners can be cancelled before being invoked and have all the event
+listeners removed from the underlying event emitters.
+
+```js
+var thunk = first([
+  [ee1, 'close', 'end', 'error'],
+  [ee2, 'error']
+], function (err, ee, event, args) {
+  // listener invoked
+})
+
+// cancel and clean up
+thunk.cancel()
+```
+
+[npm-image]: https://img.shields.io/npm/v/ee-first.svg?style=flat-square
+[npm-url]: https://npmjs.org/package/ee-first
+[github-tag]: http://img.shields.io/github/tag/jonathanong/ee-first.svg?style=flat-square
+[github-url]: https://github.com/jonathanong/ee-first/tags
+[travis-image]: https://img.shields.io/travis/jonathanong/ee-first.svg?style=flat-square
+[travis-url]: https://travis-ci.org/jonathanong/ee-first
+[coveralls-image]: https://img.shields.io/coveralls/jonathanong/ee-first.svg?style=flat-square
+[coveralls-url]: https://coveralls.io/r/jonathanong/ee-first?branch=master
+[license-image]: http://img.shields.io/npm/l/ee-first.svg?style=flat-square
+[license-url]: LICENSE.md
+[downloads-image]: http://img.shields.io/npm/dm/ee-first.svg?style=flat-square
+[downloads-url]: https://npmjs.org/package/ee-first
+[gittip-image]: https://img.shields.io/gittip/jonathanong.svg?style=flat-square
+[gittip-url]: https://www.gittip.com/jonathanong/
diff --git a/backend/node_modules/ee-first/index.js b/backend/node_modules/ee-first/index.js
new file mode 100644
index 0000000..501287c
--- /dev/null
+++ b/backend/node_modules/ee-first/index.js
@@ -0,0 +1,95 @@
+/*!
+ * ee-first
+ * Copyright(c) 2014 Jonathan Ong
+ * MIT Licensed
+ */
+
+'use strict'
+
+/**
+ * Module exports.
+ * @public
+ */
+
+module.exports = first
+
+/**
+ * Get the first event in a set of event emitters and event pairs.
+ *
+ * @param {array} stuff
+ * @param {function} done
+ * @public
+ */
+
+function first(stuff, done) {
+  if (!Array.isArray(stuff))
+    throw new TypeError('arg must be an array of [ee, events...] arrays')
+
+  var cleanups = []
+
+  for (var i = 0; i < stuff.length; i++) {
+    var arr = stuff[i]
+
+    if (!Array.isArray(arr) || arr.length < 2)
+      throw new TypeError('each array member must be [ee, events...]')
+
+    var ee = arr[0]
+
+    for (var j = 1; j < arr.length; j++) {
+      var event = arr[j]
+      var fn = listener(event, callback)
+
+      // listen to the event
+      ee.on(event, fn)
+      // push this listener to the list of cleanups
+      cleanups.push({
+        ee: ee,
+        event: event,
+        fn: fn,
+      })
+    }
+  }
+
+  function callback() {
+    cleanup()
+    done.apply(null, arguments)
+  }
+
+  function cleanup() {
+    var x
+    for (var i = 0; i < cleanups.length; i++) {
+      x = cleanups[i]
+      x.ee.removeListener(x.event, x.fn)
+    }
+  }
+
+  function thunk(fn) {
+    done = fn
+  }
+
+  thunk.cancel = cleanup
+
+  return thunk
+}
+
+/**
+ * Create the event listener.
+ * @private
+ */
+
+function listener(event, done) {
+  return function onevent(arg1) {
+    var args = new Array(arguments.length)
+    var ee = this
+    var err = event === 'error'
+      ? arg1
+      : null
+
+    // copy args to prevent arguments escaping scope
+    for (var i = 0; i < args.length; i++) {
+      args[i] = arguments[i]
+    }
+
+    done(err, ee, event, args)
+  }
+}
diff --git a/backend/node_modules/ee-first/package.json b/backend/node_modules/ee-first/package.json
new file mode 100644
index 0000000..b6d0b7d
--- /dev/null
+++ b/backend/node_modules/ee-first/package.json
@@ -0,0 +1,29 @@
+{
+  "name": "ee-first",
+  "description": "return the first event in a set of ee/event pairs",
+  "version": "1.1.1",
+  "author": {
+    "name": "Jonathan Ong",
+    "email": "me@jongleberry.com",
+    "url": "http://jongleberry.com",
+    "twitter": "https://twitter.com/jongleberry"
+  },
+  "contributors": [
+    "Douglas Christopher Wilson <doug@somethingdoug.com>"
+  ],
+  "license": "MIT",
+  "repository": "jonathanong/ee-first",
+  "devDependencies": {
+    "istanbul": "0.3.9",
+    "mocha": "2.2.5"
+  },
+  "files": [
+    "index.js",
+    "LICENSE"
+  ],
+  "scripts": {
+    "test": "mocha --reporter spec --bail --check-leaks test/",
+    "test-cov": "istanbul cover node_modules/mocha/bin/_mocha -- --reporter dot --check-leaks test/",
+    "test-travis": "istanbul cover node_modules/mocha/bin/_mocha --report lcovonly -- --reporter spec --check-leaks test/"
+  }
+}
diff --git a/backend/node_modules/encodeurl/LICENSE b/backend/node_modules/encodeurl/LICENSE
new file mode 100644
index 0000000..8812229
--- /dev/null
+++ b/backend/node_modules/encodeurl/LICENSE
@@ -0,0 +1,22 @@
+(The MIT License)
+
+Copyright (c) 2016 Douglas Christopher Wilson
+
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of this software and associated documentation files (the
+'Software'), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sublicense, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to
+the following conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
diff --git a/backend/node_modules/encodeurl/README.md b/backend/node_modules/encodeurl/README.md
new file mode 100644
index 0000000..3842493
--- /dev/null
+++ b/backend/node_modules/encodeurl/README.md
@@ -0,0 +1,109 @@
+# Encode URL
+
+Encode a URL to a percent-encoded form, excluding already-encoded sequences.
+
+## Installation
+
+```sh
+npm install encodeurl
+```
+
+## API
+
+```js
+var encodeUrl = require('encodeurl')
+```
+
+### encodeUrl(url)
+
+Encode a URL to a percent-encoded form, excluding already-encoded sequences.
+
+This function accepts a URL and encodes all the non-URL code points (as UTF-8 byte sequences). It will not encode the "%" character unless it is not part of a valid sequence (`%20` will be left as-is, but `%foo` will be encoded as `%25foo`).
+
+This encode is meant to be "safe" and does not throw errors. It will try as hard as it can to properly encode the given URL, including replacing any raw, unpaired surrogate pairs with the Unicode replacement character prior to encoding.
+
+## Examples
+
+### Encode a URL containing user-controlled data
+
+```js
+var encodeUrl = require('encodeurl')
+var escapeHtml = require('escape-html')
+
+http.createServer(function onRequest (req, res) {
+  // get encoded form of inbound url
+  var url = encodeUrl(req.url)
+
+  // create html message
+  var body = '<p>Location ' + escapeHtml(url) + ' not found</p>'
+
+  // send a 404
+  res.statusCode = 404
+  res.setHeader('Content-Type', 'text/html; charset=UTF-8')
+  res.setHeader('Content-Length', String(Buffer.byteLength(body, 'utf-8')))
+  res.end(body, 'utf-8')
+})
+```
+
+### Encode a URL for use in a header field
+
+```js
+var encodeUrl = require('encodeurl')
+var escapeHtml = require('escape-html')
+var url = require('url')
+
+http.createServer(function onRequest (req, res) {
+  // parse inbound url
+  var href = url.parse(req)
+
+  // set new host for redirect
+  href.host = 'localhost'
+  href.protocol = 'https:'
+  href.slashes = true
+
+  // create location header
+  var location = encodeUrl(url.format(href))
+
+  // create html message
+  var body = '<p>Redirecting to new site: ' + escapeHtml(location) + '</p>'
+
+  // send a 301
+  res.statusCode = 301
+  res.setHeader('Content-Type', 'text/html; charset=UTF-8')
+  res.setHeader('Content-Length', String(Buffer.byteLength(body, 'utf-8')))
+  res.setHeader('Location', location)
+  res.end(body, 'utf-8')
+})
+```
+
+## Similarities
+
+This function is _similar_ to the intrinsic function `encodeURI`. However, it will not encode:
+
+* The `\`, `^`, or `|` characters
+* The `%` character when it's part of a valid sequence
+* `[` and `]` (for IPv6 hostnames)
+* Replaces raw, unpaired surrogate pairs with the Unicode replacement character
+
+As a result, the encoding aligns closely with the behavior in the [WHATWG URL specification][whatwg-url]. However, this package only encodes strings and does not do any URL parsing or formatting.
+
+It is expected that any output from `new URL(url)` will not change when used with this package, as the output has already been encoded. Additionally, if we were to encode before `new URL(url)`, we do not expect the before and after encoded formats to be parsed any differently.
+
+## Testing
+
+```sh
+$ npm test
+$ npm run lint
+```
+
+## References
+
+- [RFC 3986: Uniform Resource Identifier (URI): Generic Syntax][rfc-3986]
+- [WHATWG URL Living Standard][whatwg-url]
+
+[rfc-3986]: https://tools.ietf.org/html/rfc3986
+[whatwg-url]: https://url.spec.whatwg.org/
+
+## License
+
+[MIT](LICENSE)
diff --git a/backend/node_modules/encodeurl/index.js b/backend/node_modules/encodeurl/index.js
new file mode 100644
index 0000000..a49ee5a
--- /dev/null
+++ b/backend/node_modules/encodeurl/index.js
@@ -0,0 +1,60 @@
+/*!
+ * encodeurl
+ * Copyright(c) 2016 Douglas Christopher Wilson
+ * MIT Licensed
+ */
+
+'use strict'
+
+/**
+ * Module exports.
+ * @public
+ */
+
+module.exports = encodeUrl
+
+/**
+ * RegExp to match non-URL code points, *after* encoding (i.e. not including "%")
+ * and including invalid escape sequences.
+ * @private
+ */
+
+var ENCODE_CHARS_REGEXP = /(?:[^\x21\x23-\x3B\x3D\x3F-\x5F\x61-\x7A\x7C\x7E]|%(?:[^0-9A-Fa-f]|[0-9A-Fa-f][^0-9A-Fa-f]|$))+/g
+
+/**
+ * RegExp to match unmatched surrogate pair.
+ * @private
+ */
+
+var UNMATCHED_SURROGATE_PAIR_REGEXP = /(^|[^\uD800-\uDBFF])[\uDC00-\uDFFF]|[\uD800-\uDBFF]([^\uDC00-\uDFFF]|$)/g
+
+/**
+ * String to replace unmatched surrogate pair with.
+ * @private
+ */
+
+var UNMATCHED_SURROGATE_PAIR_REPLACE = '$1\uFFFD$2'
+
+/**
+ * Encode a URL to a percent-encoded form, excluding already-encoded sequences.
+ *
+ * This function will take an already-encoded URL and encode all the non-URL
+ * code points. This function will not encode the "%" character unless it is
+ * not part of a valid sequence (`%20` will be left as-is, but `%foo` will
+ * be encoded as `%25foo`).
+ *
+ * This encode is meant to be "safe" and does not throw errors. It will try as
+ * hard as it can to properly encode the given URL, including replacing any raw,
+ * unpaired surrogate pairs with the Unicode replacement character prior to
+ * encoding.
+ *
+ * @param {string} url
+ * @return {string}
+ * @public
+ */
+
+function encodeUrl (url) {
+  return String(url)
+    .replace(UNMATCHED_SURROGATE_PAIR_REGEXP, UNMATCHED_SURROGATE_PAIR_REPLACE)
+    .replace(ENCODE_CHARS_REGEXP, encodeURI)
+}
diff --git a/backend/node_modules/encodeurl/package.json b/backend/node_modules/encodeurl/package.json
new file mode 100644
index 0000000..3133822
--- /dev/null
+++ b/backend/node_modules/encodeurl/package.json
@@ -0,0 +1,40 @@
+{
+  "name": "encodeurl",
+  "description": "Encode a URL to a percent-encoded form, excluding already-encoded sequences",
+  "version": "2.0.0",
+  "contributors": [
+    "Douglas Christopher Wilson <doug@somethingdoug.com>"
+  ],
+  "license": "MIT",
+  "keywords": [
+    "encode",
+    "encodeurl",
+    "url"
+  ],
+  "repository": "pillarjs/encodeurl",
+  "devDependencies": {
+    "eslint": "5.11.1",
+    "eslint-config-standard": "12.0.0",
+    "eslint-plugin-import": "2.14.0",
+    "eslint-plugin-node": "7.0.1",
+    "eslint-plugin-promise": "4.0.1",
+    "eslint-plugin-standard": "4.0.0",
+    "istanbul": "0.4.5",
+    "mocha": "2.5.3"
+  },
+  "files": [
+    "LICENSE",
+    "HISTORY.md",
+    "README.md",
+    "index.js"
+  ],
+  "engines": {
+    "node": ">= 0.8"
+  },
+  "scripts": {
+    "lint": "eslint .",
+    "test": "mocha --reporter spec --bail --check-leaks test/",
+    "test-cov": "istanbul cover node_modules/mocha/bin/_mocha -- --reporter dot --check-leaks test/",
+    "test-travis": "istanbul cover node_modules/mocha/bin/_mocha --report lcovonly -- --reporter spec --check-leaks test/"
+  }
+}
diff --git a/backend/node_modules/es-define-property/.eslintrc b/backend/node_modules/es-define-property/.eslintrc
new file mode 100644
index 0000000..46f3b12
--- /dev/null
+++ b/backend/node_modules/es-define-property/.eslintrc
@@ -0,0 +1,13 @@
+{
+	"root": true,
+
+	"extends": "@ljharb",
+
+	"rules": {
+		"new-cap": ["error", {
+			"capIsNewExceptions": [
+				"GetIntrinsic",
+			],
+		}],
+	},
+}
diff --git a/backend/node_modules/es-define-property/.github/FUNDING.yml b/backend/node_modules/es-define-property/.github/FUNDING.yml
new file mode 100644
index 0000000..4445451
--- /dev/null
+++ b/backend/node_modules/es-define-property/.github/FUNDING.yml
@@ -0,0 +1,12 @@
+# These are supported funding model platforms
+
+github: [ljharb]
+patreon: # Replace with a single Patreon username
+open_collective: # Replace with a single Open Collective username
+ko_fi: # Replace with a single Ko-fi username
+tidelift: npm/es-define-property
+community_bridge: # Replace with a single Community Bridge project-name e.g., cloud-foundry
+liberapay: # Replace with a single Liberapay username
+issuehunt: # Replace with a single IssueHunt username
+otechie: # Replace with a single Otechie username
+custom: # Replace with a single custom sponsorship URL
diff --git a/backend/node_modules/es-define-property/.nycrc b/backend/node_modules/es-define-property/.nycrc
new file mode 100644
index 0000000..bdd626c
--- /dev/null
+++ b/backend/node_modules/es-define-property/.nycrc
@@ -0,0 +1,9 @@
+{
+	"all": true,
+	"check-coverage": false,
+	"reporter": ["text-summary", "text", "html", "json"],
+	"exclude": [
+		"coverage",
+		"test"
+	]
+}
diff --git a/backend/node_modules/es-define-property/CHANGELOG.md b/backend/node_modules/es-define-property/CHANGELOG.md
new file mode 100644
index 0000000..5f60cc0
--- /dev/null
+++ b/backend/node_modules/es-define-property/CHANGELOG.md
@@ -0,0 +1,29 @@
+# Changelog
+
+All notable changes to this project will be documented in this file.
+
+The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/)
+and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
+
+## [v1.0.1](https://github.com/ljharb/es-define-property/compare/v1.0.0...v1.0.1) - 2024-12-06
+
+### Commits
+
+- [types] use shared tsconfig [`954a663`](https://github.com/ljharb/es-define-property/commit/954a66360326e508a0e5daa4b07493d58f5e110e)
+- [actions] split out node 10-20, and 20+ [`3a8e84b`](https://github.com/ljharb/es-define-property/commit/3a8e84b23883f26ff37b3e82ff283834228e18c6)
+- [Dev Deps] update `@ljharb/eslint-config`, `@ljharb/tsconfig`, `@types/get-intrinsic`, `@types/tape`, `auto-changelog`, `gopd`, `tape` [`86ae27b`](https://github.com/ljharb/es-define-property/commit/86ae27bb8cc857b23885136fad9cbe965ae36612)
+- [Refactor] avoid using `get-intrinsic` [`02480c0`](https://github.com/ljharb/es-define-property/commit/02480c0353ef6118965282977c3864aff53d98b1)
+- [Tests] replace `aud` with `npm audit` [`f6093ff`](https://github.com/ljharb/es-define-property/commit/f6093ff74ab51c98015c2592cd393bd42478e773)
+- [Tests] configure testling [`7139e66`](https://github.com/ljharb/es-define-property/commit/7139e66959247a56086d9977359caef27c6849e7)
+- [Dev Deps] update `tape` [`b901b51`](https://github.com/ljharb/es-define-property/commit/b901b511a75e001a40ce1a59fef7d9ffcfc87482)
+- [Tests] fix types in tests [`469d269`](https://github.com/ljharb/es-define-property/commit/469d269fd141b1e773ec053a9fa35843493583e0)
+- [Dev Deps] add missing peer dep [`733acfb`](https://github.com/ljharb/es-define-property/commit/733acfb0c4c96edf337e470b89a25a5b3724c352)
+
+## v1.0.0 - 2024-02-12
+
+### Commits
+
+- Initial implementation, tests, readme, types [`3e154e1`](https://github.com/ljharb/es-define-property/commit/3e154e11a2fee09127220f5e503bf2c0a31dd480)
+- Initial commit [`07d98de`](https://github.com/ljharb/es-define-property/commit/07d98de34a4dc31ff5e83a37c0c3f49e0d85cd50)
+- npm init [`c4eb634`](https://github.com/ljharb/es-define-property/commit/c4eb6348b0d3886aac36cef34ad2ee0665ea6f3e)
+- Only apps should have lockfiles [`7af86ec`](https://github.com/ljharb/es-define-property/commit/7af86ec1d311ec0b17fdfe616a25f64276903856)
diff --git a/backend/node_modules/es-define-property/LICENSE b/backend/node_modules/es-define-property/LICENSE
new file mode 100644
index 0000000..f82f389
--- /dev/null
+++ b/backend/node_modules/es-define-property/LICENSE
@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2024 Jordan Harband
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
diff --git a/backend/node_modules/es-define-property/README.md b/backend/node_modules/es-define-property/README.md
new file mode 100644
index 0000000..9b291bd
--- /dev/null
+++ b/backend/node_modules/es-define-property/README.md
@@ -0,0 +1,49 @@
+# es-define-property <sup>[![Version Badge][npm-version-svg]][package-url]</sup>
+
+[![github actions][actions-image]][actions-url]
+[![coverage][codecov-image]][codecov-url]
+[![License][license-image]][license-url]
+[![Downloads][downloads-image]][downloads-url]
+
+[![npm badge][npm-badge-png]][package-url]
+
+`Object.defineProperty`, but not IE 8's broken one.
+
+## Example
+
+```js
+const assert = require('assert');
+
+const $defineProperty = require('es-define-property');
+
+if ($defineProperty) {
+    assert.equal($defineProperty, Object.defineProperty);
+} else if (Object.defineProperty) {
+    assert.equal($defineProperty, false, 'this is IE 8');
+} else {
+    assert.equal($defineProperty, false, 'this is an ES3 engine');
+}
+```
+
+## Tests
+Simply clone the repo, `npm install`, and run `npm test`
+
+## Security
+
+Please email [@ljharb](https://github.com/ljharb) or see https://tidelift.com/security if you have a potential security vulnerability to report.
+
+[package-url]: https://npmjs.org/package/es-define-property
+[npm-version-svg]: https://versionbadg.es/ljharb/es-define-property.svg
+[deps-svg]: https://david-dm.org/ljharb/es-define-property.svg
+[deps-url]: https://david-dm.org/ljharb/es-define-property
+[dev-deps-svg]: https://david-dm.org/ljharb/es-define-property/dev-status.svg
+[dev-deps-url]: https://david-dm.org/ljharb/es-define-property#info=devDependencies
+[npm-badge-png]: https://nodei.co/npm/es-define-property.png?downloads=true&stars=true
+[license-image]: https://img.shields.io/npm/l/es-define-property.svg
+[license-url]: LICENSE
+[downloads-image]: https://img.shields.io/npm/dm/es-define-property.svg
+[downloads-url]: https://npm-stat.com/charts.html?package=es-define-property
+[codecov-image]: https://codecov.io/gh/ljharb/es-define-property/branch/main/graphs/badge.svg
+[codecov-url]: https://app.codecov.io/gh/ljharb/es-define-property/
+[actions-image]: https://img.shields.io/endpoint?url=https://github-actions-badge-u3jn4tfpocch.runkit.sh/ljharb/es-define-property
+[actions-url]: https://github.com/ljharb/es-define-property/actions
diff --git a/backend/node_modules/es-define-property/index.d.ts b/backend/node_modules/es-define-property/index.d.ts
new file mode 100644
index 0000000..6012247
--- /dev/null
+++ b/backend/node_modules/es-define-property/index.d.ts
@@ -0,0 +1,3 @@
+declare const defineProperty: false | typeof Object.defineProperty;
+
+export = defineProperty;
\ No newline at end of file
diff --git a/backend/node_modules/es-define-property/index.js b/backend/node_modules/es-define-property/index.js
new file mode 100644
index 0000000..e0a2925
--- /dev/null
+++ b/backend/node_modules/es-define-property/index.js
@@ -0,0 +1,14 @@
+'use strict';
+
+/** @type {import('.')} */
+var $defineProperty = Object.defineProperty || false;
+if ($defineProperty) {
+	try {
+		$defineProperty({}, 'a', { value: 1 });
+	} catch (e) {
+		// IE 8 has a broken defineProperty
+		$defineProperty = false;
+	}
+}
+
+module.exports = $defineProperty;
diff --git a/backend/node_modules/es-define-property/package.json b/backend/node_modules/es-define-property/package.json
new file mode 100644
index 0000000..fbed187
--- /dev/null
+++ b/backend/node_modules/es-define-property/package.json
@@ -0,0 +1,81 @@
+{
+	"name": "es-define-property",
+	"version": "1.0.1",
+	"description": "`Object.defineProperty`, but not IE 8's broken one.",
+	"main": "index.js",
+	"types": "./index.d.ts",
+	"exports": {
+		".": "./index.js",
+		"./package.json": "./package.json"
+	},
+	"sideEffects": false,
+	"scripts": {
+		"prepack": "npmignore --auto --commentLines=autogenerated",
+		"prepublish": "not-in-publish || npm run prepublishOnly",
+		"prepublishOnly": "safe-publish-latest",
+		"prelint": "evalmd README.md",
+		"lint": "eslint --ext=js,mjs .",
+		"postlint": "tsc -p .",
+		"pretest": "npm run lint",
+		"tests-only": "nyc tape 'test/**/*.js'",
+		"test": "npm run tests-only",
+		"posttest": "npx npm@'>= 10.2' audit --production",
+		"version": "auto-changelog && git add CHANGELOG.md",
+		"postversion": "auto-changelog && git add CHANGELOG.md && git commit --no-edit --amend && git tag -f \"v$(node -e \"console.log(require('./package.json').version)\")\""
+	},
+	"repository": {
+		"type": "git",
+		"url": "git+https://github.com/ljharb/es-define-property.git"
+	},
+	"keywords": [
+		"javascript",
+		"ecmascript",
+		"object",
+		"define",
+		"property",
+		"defineProperty",
+		"Object.defineProperty"
+	],
+	"author": "Jordan Harband <ljharb@gmail.com>",
+	"license": "MIT",
+	"bugs": {
+		"url": "https://github.com/ljharb/es-define-property/issues"
+	},
+	"homepage": "https://github.com/ljharb/es-define-property#readme",
+	"devDependencies": {
+		"@ljharb/eslint-config": "^21.1.1",
+		"@ljharb/tsconfig": "^0.2.2",
+		"@types/gopd": "^1.0.3",
+		"@types/tape": "^5.6.5",
+		"auto-changelog": "^2.5.0",
+		"encoding": "^0.1.13",
+		"eslint": "^8.8.0",
+		"evalmd": "^0.0.19",
+		"gopd": "^1.2.0",
+		"in-publish": "^2.0.1",
+		"npmignore": "^0.3.1",
+		"nyc": "^10.3.2",
+		"safe-publish-latest": "^2.0.0",
+		"tape": "^5.9.0",
+		"typescript": "next"
+	},
+	"engines": {
+		"node": ">= 0.4"
+	},
+	"testling": {
+		"files": "test/index.js"
+	},
+	"auto-changelog": {
+		"output": "CHANGELOG.md",
+		"template": "keepachangelog",
+		"unreleased": false,
+		"commitLimit": false,
+		"backfillLimit": false,
+		"hideCredit": true
+	},
+	"publishConfig": {
+		"ignore": [
+			".github/workflows"
+		]
+	}
+}
diff --git a/backend/node_modules/es-define-property/test/index.js b/backend/node_modules/es-define-property/test/index.js
new file mode 100644
index 0000000..b4b4688
--- /dev/null
+++ b/backend/node_modules/es-define-property/test/index.js
@@ -0,0 +1,56 @@
+'use strict';
+
+var $defineProperty = require('../');
+
+var test = require('tape');
+var gOPD = require('gopd');
+
+test('defineProperty: supported', { skip: !$defineProperty }, function (t) {
+	t.plan(4);
+
+	t.equal(typeof $defineProperty, 'function', 'defineProperty is supported');
+	if ($defineProperty && gOPD) { // this `if` check is just to shut TS up
+		/** @type {{ a: number, b?: number, c?: number }} */
+		var o = { a: 1 };
+
+		$defineProperty(o, 'b', { enumerable: true, value: 2 });
+		t.deepEqual(
+			gOPD(o, 'b'),
+			{
+				configurable: false,
+				enumerable: true,
+				value: 2,
+				writable: false
+			},
+			'property descriptor is as expected'
+		);
+
+		$defineProperty(o, 'c', { enumerable: false, value: 3, writable: true });
+		t.deepEqual(
+			gOPD(o, 'c'),
+			{
+				configurable: false,
+				enumerable: false,
+				value: 3,
+				writable: true
+			},
+			'property descriptor is as expected'
+		);
+	}
+
+	t.equal($defineProperty, Object.defineProperty, 'defineProperty is Object.defineProperty');
+
+	t.end();
+});
+
+test('defineProperty: not supported', { skip: !!$defineProperty }, function (t) {
+	t.notOk($defineProperty, 'defineProperty is not supported');
+
+	t.match(
+		typeof $defineProperty,
+		/^(?:undefined|boolean)$/,
+		'`typeof defineProperty` is `undefined` or `boolean`'
+	);
+
+	t.end();
+});
diff --git a/backend/node_modules/es-define-property/tsconfig.json b/backend/node_modules/es-define-property/tsconfig.json
new file mode 100644
index 0000000..5a49992
--- /dev/null
+++ b/backend/node_modules/es-define-property/tsconfig.json
@@ -0,0 +1,10 @@
+{
+	"extends": "@ljharb/tsconfig",
+	"compilerOptions": {
+		"target": "es2022",
+	},
+	"exclude": [
+		"coverage",
+		"test/list-exports"
+	],
+}
diff --git a/backend/node_modules/es-errors/.eslintrc b/backend/node_modules/es-errors/.eslintrc
new file mode 100644
index 0000000..3b5d9e9
--- /dev/null
+++ b/backend/node_modules/es-errors/.eslintrc
@@ -0,0 +1,5 @@
+{
+	"root": true,
+
+	"extends": "@ljharb",
+}
diff --git a/backend/node_modules/es-errors/.github/FUNDING.yml b/backend/node_modules/es-errors/.github/FUNDING.yml
new file mode 100644
index 0000000..f1b8805
--- /dev/null
+++ b/backend/node_modules/es-errors/.github/FUNDING.yml
@@ -0,0 +1,12 @@
+# These are supported funding model platforms
+
+github: [ljharb]
+patreon: # Replace with a single Patreon username
+open_collective: # Replace with a single Open Collective username
+ko_fi: # Replace with a single Ko-fi username
+tidelift: npm/es-errors
+community_bridge: # Replace with a single Community Bridge project-name e.g., cloud-foundry
+liberapay: # Replace with a single Liberapay username
+issuehunt: # Replace with a single IssueHunt username
+otechie: # Replace with a single Otechie username
+custom: # Replace with a single custom sponsorship URL
diff --git a/backend/node_modules/es-errors/CHANGELOG.md b/backend/node_modules/es-errors/CHANGELOG.md
new file mode 100644
index 0000000..204a9e9
--- /dev/null
+++ b/backend/node_modules/es-errors/CHANGELOG.md
@@ -0,0 +1,40 @@
+# Changelog
+
+All notable changes to this project will be documented in this file.
+
+The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/)
+and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
+
+## [v1.3.0](https://github.com/ljharb/es-errors/compare/v1.2.1...v1.3.0) - 2024-02-05
+
+### Commits
+
+- [New] add `EvalError` and `URIError` [`1927627`](https://github.com/ljharb/es-errors/commit/1927627ba68cb6c829d307231376c967db53acdf)
+
+## [v1.2.1](https://github.com/ljharb/es-errors/compare/v1.2.0...v1.2.1) - 2024-02-04
+
+### Commits
+
+- [Fix] add missing `exports` entry [`5bb5f28`](https://github.com/ljharb/es-errors/commit/5bb5f280f98922701109d6ebb82eea2257cecc7e)
+
+## [v1.2.0](https://github.com/ljharb/es-errors/compare/v1.1.0...v1.2.0) - 2024-02-04
+
+### Commits
+
+- [New] add `ReferenceError` [`6d8cf5b`](https://github.com/ljharb/es-errors/commit/6d8cf5bbb6f3f598d02cf6f30e468ba2caa8e143)
+
+## [v1.1.0](https://github.com/ljharb/es-errors/compare/v1.0.0...v1.1.0) - 2024-02-04
+
+### Commits
+
+- [New] add base Error [`2983ab6`](https://github.com/ljharb/es-errors/commit/2983ab65f7bc5441276cb021dc3aa03c78881698)
+
+## v1.0.0 - 2024-02-03
+
+### Commits
+
+- Initial implementation, tests, readme, type [`8f47631`](https://github.com/ljharb/es-errors/commit/8f476317e9ad76f40ad648081829b1a1a3a1288b)
+- Initial commit [`ea5d099`](https://github.com/ljharb/es-errors/commit/ea5d099ef18e550509ab9e2be000526afd81c385)
+- npm init [`6f5ebf9`](https://github.com/ljharb/es-errors/commit/6f5ebf9cead474dadd72b9e63dad315820a089ae)
+- Only apps should have lockfiles [`e1a0aeb`](https://github.com/ljharb/es-errors/commit/e1a0aeb7b80f5cfc56be54d6b2100e915d47def8)
+- [meta] add `sideEffects` flag [`a9c7d46`](https://github.com/ljharb/es-errors/commit/a9c7d460a492f1d8a241c836bc25a322a19cc043)
diff --git a/backend/node_modules/es-errors/LICENSE b/backend/node_modules/es-errors/LICENSE
new file mode 100644
index 0000000..f82f389
--- /dev/null
+++ b/backend/node_modules/es-errors/LICENSE
@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2024 Jordan Harband
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
diff --git a/backend/node_modules/es-errors/README.md b/backend/node_modules/es-errors/README.md
new file mode 100644
index 0000000..8dbfacf
--- /dev/null
+++ b/backend/node_modules/es-errors/README.md
@@ -0,0 +1,55 @@
+# es-errors <sup>[![Version Badge][npm-version-svg]][package-url]</sup>
+
+[![github actions][actions-image]][actions-url]
+[![coverage][codecov-image]][codecov-url]
+[![License][license-image]][license-url]
+[![Downloads][downloads-image]][downloads-url]
+
+[![npm badge][npm-badge-png]][package-url]
+
+A simple cache for a few of the JS Error constructors.
+
+## Example
+
+```js
+const assert = require('assert');
+
+const Base = require('es-errors');
+const Eval = require('es-errors/eval');
+const Range = require('es-errors/range');
+const Ref = require('es-errors/ref');
+const Syntax = require('es-errors/syntax');
+const Type = require('es-errors/type');
+const URI = require('es-errors/uri');
+
+assert.equal(Base, Error);
+assert.equal(Eval, EvalError);
+assert.equal(Range, RangeError);
+assert.equal(Ref, ReferenceError);
+assert.equal(Syntax, SyntaxError);
+assert.equal(Type, TypeError);
+assert.equal(URI, URIError);
+```
+
+## Tests
+Simply clone the repo, `npm install`, and run `npm test`
+
+## Security
+
+Please email [@ljharb](https://github.com/ljharb) or see https://tidelift.com/security if you have a potential security vulnerability to report.
+
+[package-url]: https://npmjs.org/package/es-errors
+[npm-version-svg]: https://versionbadg.es/ljharb/es-errors.svg
+[deps-svg]: https://david-dm.org/ljharb/es-errors.svg
+[deps-url]: https://david-dm.org/ljharb/es-errors
+[dev-deps-svg]: https://david-dm.org/ljharb/es-errors/dev-status.svg
+[dev-deps-url]: https://david-dm.org/ljharb/es-errors#info=devDependencies
+[npm-badge-png]: https://nodei.co/npm/es-errors.png?downloads=true&stars=true
+[license-image]: https://img.shields.io/npm/l/es-errors.svg
+[license-url]: LICENSE
+[downloads-image]: https://img.shields.io/npm/dm/es-errors.svg
+[downloads-url]: https://npm-stat.com/charts.html?package=es-errors
+[codecov-image]: https://codecov.io/gh/ljharb/es-errors/branch/main/graphs/badge.svg
+[codecov-url]: https://app.codecov.io/gh/ljharb/es-errors/
+[actions-image]: https://img.shields.io/endpoint?url=https://github-actions-badge-u3jn4tfpocch.runkit.sh/ljharb/es-errors
+[actions-url]: https://github.com/ljharb/es-errors/actions
diff --git a/backend/node_modules/es-errors/eval.d.ts b/backend/node_modules/es-errors/eval.d.ts
new file mode 100644
index 0000000..e4210e0
--- /dev/null
+++ b/backend/node_modules/es-errors/eval.d.ts
@@ -0,0 +1,3 @@
+declare const EvalError: EvalErrorConstructor;
+
+export = EvalError;
diff --git a/backend/node_modules/es-errors/eval.js b/backend/node_modules/es-errors/eval.js
new file mode 100644
index 0000000..725ccb6
--- /dev/null
+++ b/backend/node_modules/es-errors/eval.js
@@ -0,0 +1,4 @@
+'use strict';
+
+/** @type {import('./eval')} */
+module.exports = EvalError;
diff --git a/backend/node_modules/es-errors/index.d.ts b/backend/node_modules/es-errors/index.d.ts
new file mode 100644
index 0000000..69bdbc9
--- /dev/null
+++ b/backend/node_modules/es-errors/index.d.ts
@@ -0,0 +1,3 @@
+declare const Error: ErrorConstructor;
+
+export = Error;
diff --git a/backend/node_modules/es-errors/index.js b/backend/node_modules/es-errors/index.js
new file mode 100644
index 0000000..cc0c521
--- /dev/null
+++ b/backend/node_modules/es-errors/index.js
@@ -0,0 +1,4 @@
+'use strict';
+
+/** @type {import('.')} */
+module.exports = Error;
diff --git a/backend/node_modules/es-errors/package.json b/backend/node_modules/es-errors/package.json
new file mode 100644
index 0000000..ff8c2a5
--- /dev/null
+++ b/backend/node_modules/es-errors/package.json
@@ -0,0 +1,80 @@
+{
+	"name": "es-errors",
+	"version": "1.3.0",
+	"description": "A simple cache for a few of the JS Error constructors.",
+	"main": "index.js",
+	"exports": {
+		".": "./index.js",
+		"./eval": "./eval.js",
+		"./range": "./range.js",
+		"./ref": "./ref.js",
+		"./syntax": "./syntax.js",
+		"./type": "./type.js",
+		"./uri": "./uri.js",
+		"./package.json": "./package.json"
+	},
+	"sideEffects": false,
+	"scripts": {
+		"prepack": "npmignore --auto --commentLines=autogenerated",
+		"prepublishOnly": "safe-publish-latest",
+		"prepublish": "not-in-publish || npm run prepublishOnly",
+		"pretest": "npm run lint",
+		"test": "npm run tests-only",
+		"tests-only": "nyc tape 'test/**/*.js'",
+		"posttest": "aud --production",
+		"prelint": "evalmd README.md",
+		"lint": "eslint --ext=js,mjs .",
+		"postlint": "tsc -p . && eclint check $(git ls-files | xargs find 2> /dev/null | grep -vE 'node_modules|\\.git' | grep -v dist/)",
+		"version": "auto-changelog && git add CHANGELOG.md",
+		"postversion": "auto-changelog && git add CHANGELOG.md && git commit --no-edit --amend && git tag -f \"v$(node -e \"console.log(require('./package.json').version)\")\""
+	},
+	"repository": {
+		"type": "git",
+		"url": "git+https://github.com/ljharb/es-errors.git"
+	},
+	"keywords": [
+		"javascript",
+		"ecmascript",
+		"error",
+		"typeerror",
+		"syntaxerror",
+		"rangeerror"
+	],
+	"author": "Jordan Harband <ljharb@gmail.com>",
+	"license": "MIT",
+	"bugs": {
+		"url": "https://github.com/ljharb/es-errors/issues"
+	},
+	"homepage": "https://github.com/ljharb/es-errors#readme",
+	"devDependencies": {
+		"@ljharb/eslint-config": "^21.1.0",
+		"@types/tape": "^5.6.4",
+		"aud": "^2.0.4",
+		"auto-changelog": "^2.4.0",
+		"eclint": "^2.8.1",
+		"eslint": "^8.8.0",
+		"evalmd": "^0.0.19",
+		"in-publish": "^2.0.1",
+		"npmignore": "^0.3.1",
+		"nyc": "^10.3.2",
+		"safe-publish-latest": "^2.0.0",
+		"tape": "^5.7.4",
+		"typescript": "next"
+	},
+	"auto-changelog": {
+		"output": "CHANGELOG.md",
+		"template": "keepachangelog",
+		"unreleased": false,
+		"commitLimit": false,
+		"backfillLimit": false,
+		"hideCredit": true
+	},
+	"publishConfig": {
+		"ignore": [
+			".github/workflows"
+		]
+	},
+	"engines": {
+		"node": ">= 0.4"
+	}
+}
diff --git a/backend/node_modules/es-errors/range.d.ts b/backend/node_modules/es-errors/range.d.ts
new file mode 100644
index 0000000..3a12e86
--- /dev/null
+++ b/backend/node_modules/es-errors/range.d.ts
@@ -0,0 +1,3 @@
+declare const RangeError: RangeErrorConstructor;
+
+export = RangeError;
diff --git a/backend/node_modules/es-errors/range.js b/backend/node_modules/es-errors/range.js
new file mode 100644
index 0000000..2044fe0
--- /dev/null
+++ b/backend/node_modules/es-errors/range.js
@@ -0,0 +1,4 @@
+'use strict';
+
+/** @type {import('./range')} */
+module.exports = RangeError;
diff --git a/backend/node_modules/es-errors/ref.d.ts b/backend/node_modules/es-errors/ref.d.ts
new file mode 100644
index 0000000..a13107e
--- /dev/null
+++ b/backend/node_modules/es-errors/ref.d.ts
@@ -0,0 +1,3 @@
+declare const ReferenceError: ReferenceErrorConstructor;
+
+export = ReferenceError;
diff --git a/backend/node_modules/es-errors/ref.js b/backend/node_modules/es-errors/ref.js
new file mode 100644
index 0000000..d7c430f
--- /dev/null
+++ b/backend/node_modules/es-errors/ref.js
@@ -0,0 +1,4 @@
+'use strict';
+
+/** @type {import('./ref')} */
+module.exports = ReferenceError;
diff --git a/backend/node_modules/es-errors/syntax.d.ts b/backend/node_modules/es-errors/syntax.d.ts
new file mode 100644
index 0000000..6a0c53c
--- /dev/null
+++ b/backend/node_modules/es-errors/syntax.d.ts
@@ -0,0 +1,3 @@
+declare const SyntaxError: SyntaxErrorConstructor;
+
+export = SyntaxError;
diff --git a/backend/node_modules/es-errors/syntax.js b/backend/node_modules/es-errors/syntax.js
new file mode 100644
index 0000000..5f5fdde
--- /dev/null
+++ b/backend/node_modules/es-errors/syntax.js
@@ -0,0 +1,4 @@
+'use strict';
+
+/** @type {import('./syntax')} */
+module.exports = SyntaxError;
diff --git a/backend/node_modules/es-errors/test/index.js b/backend/node_modules/es-errors/test/index.js
new file mode 100644
index 0000000..1ff0277
--- /dev/null
+++ b/backend/node_modules/es-errors/test/index.js
@@ -0,0 +1,19 @@
+'use strict';
+
+var test = require('tape');
+
+var E = require('../');
+var R = require('../range');
+var Ref = require('../ref');
+var S = require('../syntax');
+var T = require('../type');
+
+test('errors', function (t) {
+	t.equal(E, Error);
+	t.equal(R, RangeError);
+	t.equal(Ref, ReferenceError);
+	t.equal(S, SyntaxError);
+	t.equal(T, TypeError);
+
+	t.end();
+});
diff --git a/backend/node_modules/es-errors/tsconfig.json b/backend/node_modules/es-errors/tsconfig.json
new file mode 100644
index 0000000..99dfeb6
--- /dev/null
+++ b/backend/node_modules/es-errors/tsconfig.json
@@ -0,0 +1,49 @@
+{
+	"compilerOptions": {
+		/* Visit https://aka.ms/tsconfig.json to read more about this file */
+
+		/* Projects */
+
+		/* Language and Environment */
+		"target": "es5",																	/* Set the JavaScript language version for emitted JavaScript and include compatible library declarations. */
+		// "lib": [],																				/* Specify a set of bundled library declaration files that describe the target runtime environment. */
+		// "noLib": true,																		/* Disable including any library files, including the default lib.d.ts. */
+		"useDefineForClassFields": true,										 /* Emit ECMAScript-standard-compliant class fields. */
+		// "moduleDetection": "auto",												/* Control what method is used to detect module-format JS files. */
+
+		/* Modules */
+		"module": "commonjs",																/* Specify what module code is generated. */
+		// "rootDir": "./",																	/* Specify the root folder within your source files. */
+		// "moduleResolution": "node",											 /* Specify how TypeScript looks up a file from a given module specifier. */
+		// "baseUrl": "./",																	/* Specify the base directory to resolve non-relative module names. */
+		// "paths": {},																			/* Specify a set of entries that re-map imports to additional lookup locations. */
+		// "rootDirs": [],																	 /* Allow multiple folders to be treated as one when resolving modules. */
+		// "typeRoots": ["types"],													 /* Specify multiple folders that act like `./node_modules/@types`. */
+		"resolveJsonModule": true,													 /* Enable importing .json files. */
+		// "allowArbitraryExtensions": true,								 /* Enable importing files with any extension, provided a declaration file is present. */
+
+		/* JavaScript Support */
+		"allowJs": true,																		 /* Allow JavaScript files to be a part of your program. Use the `checkJS` option to get errors from these files. */
+		"checkJs": true,																		 /* Enable error reporting in type-checked JavaScript files. */
+		"maxNodeModuleJsDepth": 1,													 /* Specify the maximum folder depth used for checking JavaScript files from `node_modules`. Only applicable with `allowJs`. */
+
+		/* Emit */
+		"declaration": true,																 /* Generate .d.ts files from TypeScript and JavaScript files in your project. */
+		"declarationMap": true,															/* Create sourcemaps for d.ts files. */
+		"noEmit": true,																			/* Disable emitting files from a compilation. */
+
+		/* Interop Constraints */
+		"allowSyntheticDefaultImports": true,								/* Allow `import x from y` when a module doesn't have a default export. */
+		"esModuleInterop": true,														 /* Emit additional JavaScript to ease support for importing CommonJS modules. This enables `allowSyntheticDefaultImports` for type compatibility. */
+		"forceConsistentCasingInFileNames": true,						/* Ensure that casing is correct in imports. */
+
+		/* Type Checking */
+		"strict": true,																			/* Enable all strict type-checking options. */
+
+		/* Completeness */
+		// "skipLibCheck": true															/* Skip type checking all .d.ts files. */
+	},
+	"exclude": [
+		"coverage",
+	],
+}
diff --git a/backend/node_modules/es-errors/type.d.ts b/backend/node_modules/es-errors/type.d.ts
new file mode 100644
index 0000000..576fb51
--- /dev/null
+++ b/backend/node_modules/es-errors/type.d.ts
@@ -0,0 +1,3 @@
+declare const TypeError: TypeErrorConstructor
+
+export = TypeError;
diff --git a/backend/node_modules/es-errors/type.js b/backend/node_modules/es-errors/type.js
new file mode 100644
index 0000000..9769e44
--- /dev/null
+++ b/backend/node_modules/es-errors/type.js
@@ -0,0 +1,4 @@
+'use strict';
+
+/** @type {import('./type')} */
+module.exports = TypeError;
diff --git a/backend/node_modules/es-errors/uri.d.ts b/backend/node_modules/es-errors/uri.d.ts
new file mode 100644
index 0000000..c3261c9
--- /dev/null
+++ b/backend/node_modules/es-errors/uri.d.ts
@@ -0,0 +1,3 @@
+declare const URIError: URIErrorConstructor;
+
+export = URIError;
diff --git a/backend/node_modules/es-errors/uri.js b/backend/node_modules/es-errors/uri.js
new file mode 100644
index 0000000..e9cd1c7
--- /dev/null
+++ b/backend/node_modules/es-errors/uri.js
@@ -0,0 +1,4 @@
+'use strict';
+
+/** @type {import('./uri')} */
+module.exports = URIError;
diff --git a/backend/node_modules/es-object-atoms/.eslintrc b/backend/node_modules/es-object-atoms/.eslintrc
new file mode 100644
index 0000000..d90a1bc
--- /dev/null
+++ b/backend/node_modules/es-object-atoms/.eslintrc
@@ -0,0 +1,16 @@
+{
+	"root": true,
+
+	"extends": "@ljharb",
+
+	"rules": {
+		"eqeqeq": ["error", "allow-null"],
+		"id-length": "off",
+		"new-cap": ["error", {
+			"capIsNewExceptions": [
+				"RequireObjectCoercible",
+				"ToObject",
+			],
+		}],
+	},
+}
diff --git a/backend/node_modules/es-object-atoms/.github/FUNDING.yml b/backend/node_modules/es-object-atoms/.github/FUNDING.yml
new file mode 100644
index 0000000..352bfda
--- /dev/null
+++ b/backend/node_modules/es-object-atoms/.github/FUNDING.yml
@@ -0,0 +1,12 @@
+# These are supported funding model platforms
+
+github: [ljharb]
+patreon: # Replace with a single Patreon username
+open_collective: # Replace with a single Open Collective username
+ko_fi: # Replace with a single Ko-fi username
+tidelift: npm/es-object
+community_bridge: # Replace with a single Community Bridge project-name e.g., cloud-foundry
+liberapay: # Replace with a single Liberapay username
+issuehunt: # Replace with a single IssueHunt username
+otechie: # Replace with a single Otechie username
+custom: # Replace with a single custom sponsorship URL
diff --git a/backend/node_modules/es-object-atoms/CHANGELOG.md b/backend/node_modules/es-object-atoms/CHANGELOG.md
new file mode 100644
index 0000000..fdd2abe
--- /dev/null
+++ b/backend/node_modules/es-object-atoms/CHANGELOG.md
@@ -0,0 +1,37 @@
+# Changelog
+
+All notable changes to this project will be documented in this file.
+
+The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/)
+and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
+
+## [v1.1.1](https://github.com/ljharb/es-object-atoms/compare/v1.1.0...v1.1.1) - 2025-01-14
+
+### Commits
+
+- [types] `ToObject`: improve types [`cfe8c8a`](https://github.com/ljharb/es-object-atoms/commit/cfe8c8a105c44820cb22e26f62d12ef0ad9715c8)
+
+## [v1.1.0](https://github.com/ljharb/es-object-atoms/compare/v1.0.1...v1.1.0) - 2025-01-14
+
+### Commits
+
+- [New] add `isObject` [`51e4042`](https://github.com/ljharb/es-object-atoms/commit/51e4042df722eb3165f40dc5f4bf33d0197ecb07)
+
+## [v1.0.1](https://github.com/ljharb/es-object-atoms/compare/v1.0.0...v1.0.1) - 2025-01-13
+
+### Commits
+
+- [Dev Deps] update `@ljharb/eslint-config`, `@ljharb/tsconfig`, `@types/tape`, `auto-changelog`, `tape` [`38ab9eb`](https://github.com/ljharb/es-object-atoms/commit/38ab9eb00b62c2f4668644f5e513d9b414ebd595)
+- [types] improve types [`7d1beb8`](https://github.com/ljharb/es-object-atoms/commit/7d1beb887958b78b6a728a210a1c8370ab7e2aa1)
+- [Tests] replace `aud` with `npm audit` [`25863ba`](https://github.com/ljharb/es-object-atoms/commit/25863baf99178f1d1ad33d1120498db28631907e)
+- [Dev Deps] add missing peer dep [`c012309`](https://github.com/ljharb/es-object-atoms/commit/c0123091287e6132d6f4240496340c427433df28)
+
+## v1.0.0 - 2024-03-16
+
+### Commits
+
+- Initial implementation, tests, readme, types [`f1499db`](https://github.com/ljharb/es-object-atoms/commit/f1499db7d3e1741e64979c61d645ab3137705e82)
+- Initial commit [`99eedc7`](https://github.com/ljharb/es-object-atoms/commit/99eedc7b5fde38a50a28d3c8b724706e3e4c5f6a)
+- [meta] rename repo [`fc851fa`](https://github.com/ljharb/es-object-atoms/commit/fc851fa70616d2d182aaf0bd02c2ed7084dea8fa)
+- npm init [`b909377`](https://github.com/ljharb/es-object-atoms/commit/b909377c50049bd0ec575562d20b0f9ebae8947f)
+- Only apps should have lockfiles [`7249edd`](https://github.com/ljharb/es-object-atoms/commit/7249edd2178c1b9ddfc66ffcc6d07fdf0d28efc1)
diff --git a/backend/node_modules/es-object-atoms/LICENSE b/backend/node_modules/es-object-atoms/LICENSE
new file mode 100644
index 0000000..f82f389
--- /dev/null
+++ b/backend/node_modules/es-object-atoms/LICENSE
@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2024 Jordan Harband
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
diff --git a/backend/node_modules/es-object-atoms/README.md b/backend/node_modules/es-object-atoms/README.md
new file mode 100644
index 0000000..447695b
--- /dev/null
+++ b/backend/node_modules/es-object-atoms/README.md
@@ -0,0 +1,63 @@
+# es-object-atoms <sup>[![Version Badge][npm-version-svg]][package-url]</sup>
+
+[![github actions][actions-image]][actions-url]
+[![coverage][codecov-image]][codecov-url]
+[![License][license-image]][license-url]
+[![Downloads][downloads-image]][downloads-url]
+
+[![npm badge][npm-badge-png]][package-url]
+
+ES Object-related atoms: Object, ToObject, RequireObjectCoercible.
+
+## Example
+
+```js
+const assert = require('assert');
+
+const $Object = require('es-object-atoms');
+const isObject = require('es-object-atoms/isObject');
+const ToObject = require('es-object-atoms/ToObject');
+const RequireObjectCoercible = require('es-object-atoms/RequireObjectCoercible');
+
+assert.equal($Object, Object);
+assert.throws(() => ToObject(null), TypeError);
+assert.throws(() => ToObject(undefined), TypeError);
+assert.throws(() => RequireObjectCoercible(null), TypeError);
+assert.throws(() => RequireObjectCoercible(undefined), TypeError);
+
+assert.equal(isObject(undefined), false);
+assert.equal(isObject(null), false);
+assert.equal(isObject({}), true);
+assert.equal(isObject([]), true);
+assert.equal(isObject(function () {}), true);
+
+assert.deepEqual(RequireObjectCoercible(true), true);
+assert.deepEqual(ToObject(true), Object(true));
+
+const obj = {};
+assert.equal(RequireObjectCoercible(obj), obj);
+assert.equal(ToObject(obj), obj);
+```
+
+## Tests
+Simply clone the repo, `npm install`, and run `npm test`
+
+## Security
+
+Please email [@ljharb](https://github.com/ljharb) or see https://tidelift.com/security if you have a potential security vulnerability to report.
+
+[package-url]: https://npmjs.org/package/es-object-atoms
+[npm-version-svg]: https://versionbadg.es/ljharb/es-object-atoms.svg
+[deps-svg]: https://david-dm.org/ljharb/es-object-atoms.svg
+[deps-url]: https://david-dm.org/ljharb/es-object-atoms
+[dev-deps-svg]: https://david-dm.org/ljharb/es-object-atoms/dev-status.svg
+[dev-deps-url]: https://david-dm.org/ljharb/es-object-atoms#info=devDependencies
+[npm-badge-png]: https://nodei.co/npm/es-object-atoms.png?downloads=true&stars=true
+[license-image]: https://img.shields.io/npm/l/es-object-atoms.svg
+[license-url]: LICENSE
+[downloads-image]: https://img.shields.io/npm/dm/es-object.svg
+[downloads-url]: https://npm-stat.com/charts.html?package=es-object-atoms
+[codecov-image]: https://codecov.io/gh/ljharb/es-object-atoms/branch/main/graphs/badge.svg
+[codecov-url]: https://app.codecov.io/gh/ljharb/es-object-atoms/
+[actions-image]: https://img.shields.io/endpoint?url=https://github-actions-badge-u3jn4tfpocch.runkit.sh/ljharb/es-object-atoms
+[actions-url]: https://github.com/ljharb/es-object-atoms/actions
diff --git a/backend/node_modules/es-object-atoms/RequireObjectCoercible.d.ts b/backend/node_modules/es-object-atoms/RequireObjectCoercible.d.ts
new file mode 100644
index 0000000..7e26c45
--- /dev/null
+++ b/backend/node_modules/es-object-atoms/RequireObjectCoercible.d.ts
@@ -0,0 +1,3 @@
+declare function RequireObjectCoercible<T extends {}>(value: T, optMessage?: string): T;
+
+export = RequireObjectCoercible;
diff --git a/backend/node_modules/es-object-atoms/RequireObjectCoercible.js b/backend/node_modules/es-object-atoms/RequireObjectCoercible.js
new file mode 100644
index 0000000..8e191c6
--- /dev/null
+++ b/backend/node_modules/es-object-atoms/RequireObjectCoercible.js
@@ -0,0 +1,11 @@
+'use strict';
+
+var $TypeError = require('es-errors/type');
+
+/** @type {import('./RequireObjectCoercible')} */
+module.exports = function RequireObjectCoercible(value) {
+	if (value == null) {
+		throw new $TypeError((arguments.length > 0 && arguments[1]) || ('Cannot call method on ' + value));
+	}
+	return value;
+};
diff --git a/backend/node_modules/es-object-atoms/ToObject.d.ts b/backend/node_modules/es-object-atoms/ToObject.d.ts
new file mode 100644
index 0000000..d6dd302
--- /dev/null
+++ b/backend/node_modules/es-object-atoms/ToObject.d.ts
@@ -0,0 +1,7 @@
+declare function ToObject<T extends object>(value: number): Number;
+declare function ToObject<T extends object>(value: boolean): Boolean;
+declare function ToObject<T extends object>(value: string): String;
+declare function ToObject<T extends object>(value: bigint): BigInt;
+declare function ToObject<T extends object>(value: T): T;
+
+export = ToObject;
diff --git a/backend/node_modules/es-object-atoms/ToObject.js b/backend/node_modules/es-object-atoms/ToObject.js
new file mode 100644
index 0000000..2b99a7d
--- /dev/null
+++ b/backend/node_modules/es-object-atoms/ToObject.js
@@ -0,0 +1,10 @@
+'use strict';
+
+var $Object = require('./');
+var RequireObjectCoercible = require('./RequireObjectCoercible');
+
+/** @type {import('./ToObject')} */
+module.exports = function ToObject(value) {
+	RequireObjectCoercible(value);
+	return $Object(value);
+};
diff --git a/backend/node_modules/es-object-atoms/index.d.ts b/backend/node_modules/es-object-atoms/index.d.ts
new file mode 100644
index 0000000..8bdbfc8
--- /dev/null
+++ b/backend/node_modules/es-object-atoms/index.d.ts
@@ -0,0 +1,3 @@
+declare const Object: ObjectConstructor;
+
+export = Object;
diff --git a/backend/node_modules/es-object-atoms/index.js b/backend/node_modules/es-object-atoms/index.js
new file mode 100644
index 0000000..1d33cef
--- /dev/null
+++ b/backend/node_modules/es-object-atoms/index.js
@@ -0,0 +1,4 @@
+'use strict';
+
+/** @type {import('.')} */
+module.exports = Object;
diff --git a/backend/node_modules/es-object-atoms/isObject.d.ts b/backend/node_modules/es-object-atoms/isObject.d.ts
new file mode 100644
index 0000000..43bee3b
--- /dev/null
+++ b/backend/node_modules/es-object-atoms/isObject.d.ts
@@ -0,0 +1,3 @@
+declare function isObject(x: unknown): x is object;
+
+export = isObject;
diff --git a/backend/node_modules/es-object-atoms/isObject.js b/backend/node_modules/es-object-atoms/isObject.js
new file mode 100644
index 0000000..ec49bf1
--- /dev/null
+++ b/backend/node_modules/es-object-atoms/isObject.js
@@ -0,0 +1,6 @@
+'use strict';
+
+/** @type {import('./isObject')} */
+module.exports = function isObject(x) {
+	return !!x && (typeof x === 'function' || typeof x === 'object');
+};
diff --git a/backend/node_modules/es-object-atoms/package.json b/backend/node_modules/es-object-atoms/package.json
new file mode 100644
index 0000000..f4cec71
--- /dev/null
+++ b/backend/node_modules/es-object-atoms/package.json
@@ -0,0 +1,80 @@
+{
+	"name": "es-object-atoms",
+	"version": "1.1.1",
+	"description": "ES Object-related atoms: Object, ToObject, RequireObjectCoercible",
+	"main": "index.js",
+	"exports": {
+		".": "./index.js",
+		"./RequireObjectCoercible": "./RequireObjectCoercible.js",
+		"./isObject": "./isObject.js",
+		"./ToObject": "./ToObject.js",
+		"./package.json": "./package.json"
+	},
+	"sideEffects": false,
+	"scripts": {
+		"prepack": "npmignore --auto --commentLines=autogenerated",
+		"prepublishOnly": "safe-publish-latest",
+		"prepublish": "not-in-publish || npm run prepublishOnly",
+		"pretest": "npm run lint",
+		"test": "npm run tests-only",
+		"tests-only": "nyc tape 'test/**/*.js'",
+		"posttest": "npx npm@\">= 10.2\" audit --production",
+		"prelint": "evalmd README.md",
+		"lint": "eslint --ext=js,mjs .",
+		"postlint": "tsc -p . && eclint check $(git ls-files | xargs find 2> /dev/null | grep -vE 'node_modules|\\.git' | grep -v dist/)",
+		"version": "auto-changelog && git add CHANGELOG.md",
+		"postversion": "auto-changelog && git add CHANGELOG.md && git commit --no-edit --amend && git tag -f \"v$(node -e \"console.log(require('./package.json').version)\")\""
+	},
+	"repository": {
+		"type": "git",
+		"url": "git+https://github.com/ljharb/es-object-atoms.git"
+	},
+	"keywords": [
+		"javascript",
+		"ecmascript",
+		"object",
+		"toobject",
+		"coercible"
+	],
+	"author": "Jordan Harband <ljharb@gmail.com>",
+	"license": "MIT",
+	"bugs": {
+		"url": "https://github.com/ljharb/es-object-atoms/issues"
+	},
+	"homepage": "https://github.com/ljharb/es-object-atoms#readme",
+	"dependencies": {
+		"es-errors": "^1.3.0"
+	},
+	"devDependencies": {
+		"@ljharb/eslint-config": "^21.1.1",
+		"@ljharb/tsconfig": "^0.2.3",
+		"@types/tape": "^5.8.1",
+		"auto-changelog": "^2.5.0",
+		"eclint": "^2.8.1",
+		"encoding": "^0.1.13",
+		"eslint": "^8.8.0",
+		"evalmd": "^0.0.19",
+		"in-publish": "^2.0.1",
+		"npmignore": "^0.3.1",
+		"nyc": "^10.3.2",
+		"safe-publish-latest": "^2.0.0",
+		"tape": "^5.9.0",
+		"typescript": "next"
+	},
+	"auto-changelog": {
+		"output": "CHANGELOG.md",
+		"template": "keepachangelog",
+		"unreleased": false,
+		"commitLimit": false,
+		"backfillLimit": false,
+		"hideCredit": true
+	},
+	"publishConfig": {
+		"ignore": [
+			".github/workflows"
+		]
+	},
+	"engines": {
+		"node": ">= 0.4"
+	}
+}
diff --git a/backend/node_modules/es-object-atoms/test/index.js b/backend/node_modules/es-object-atoms/test/index.js
new file mode 100644
index 0000000..430b705
--- /dev/null
+++ b/backend/node_modules/es-object-atoms/test/index.js
@@ -0,0 +1,38 @@
+'use strict';
+
+var test = require('tape');
+
+var $Object = require('../');
+var isObject = require('../isObject');
+var ToObject = require('../ToObject');
+var RequireObjectCoercible = require('..//RequireObjectCoercible');
+
+test('errors', function (t) {
+	t.equal($Object, Object);
+	// @ts-expect-error
+	t['throws'](function () { ToObject(null); }, TypeError);
+	// @ts-expect-error
+	t['throws'](function () { ToObject(undefined); }, TypeError);
+	// @ts-expect-error
+	t['throws'](function () { RequireObjectCoercible(null); }, TypeError);
+	// @ts-expect-error
+	t['throws'](function () { RequireObjectCoercible(undefined); }, TypeError);
+
+	t.deepEqual(RequireObjectCoercible(true), true);
+	t.deepEqual(ToObject(true), Object(true));
+	t.deepEqual(ToObject(42), Object(42));
+	var f = function () {};
+	t.equal(ToObject(f), f);
+
+	t.equal(isObject(undefined), false);
+	t.equal(isObject(null), false);
+	t.equal(isObject({}), true);
+	t.equal(isObject([]), true);
+	t.equal(isObject(function () {}), true);
+
+	var obj = {};
+	t.equal(RequireObjectCoercible(obj), obj);
+	t.equal(ToObject(obj), obj);
+
+	t.end();
+});
diff --git a/backend/node_modules/es-object-atoms/tsconfig.json b/backend/node_modules/es-object-atoms/tsconfig.json
new file mode 100644
index 0000000..1f73cb7
--- /dev/null
+++ b/backend/node_modules/es-object-atoms/tsconfig.json
@@ -0,0 +1,6 @@
+{
+	"extends": "@ljharb/tsconfig",
+	"compilerOptions": {
+		"target": "es5",
+	},
+}
diff --git a/backend/node_modules/escape-html/LICENSE b/backend/node_modules/escape-html/LICENSE
new file mode 100644
index 0000000..2e70de9
--- /dev/null
+++ b/backend/node_modules/escape-html/LICENSE
@@ -0,0 +1,24 @@
+(The MIT License)
+
+Copyright (c) 2012-2013 TJ Holowaychuk
+Copyright (c) 2015 Andreas Lubbe
+Copyright (c) 2015 Tiancheng "Timothy" Gu
+
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of this software and associated documentation files (the
+'Software'), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sublicense, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to
+the following conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
diff --git a/backend/node_modules/escape-html/Readme.md b/backend/node_modules/escape-html/Readme.md
new file mode 100644
index 0000000..653d9ea
--- /dev/null
+++ b/backend/node_modules/escape-html/Readme.md
@@ -0,0 +1,43 @@
+
+# escape-html
+
+  Escape string for use in HTML
+
+## Example
+
+```js
+var escape = require('escape-html');
+var html = escape('foo & bar');
+// -> foo &amp; bar
+```
+
+## Benchmark
+
+```
+$ npm run-script bench
+
+> escape-html@1.0.3 bench nodejs-escape-html
+> node benchmark/index.js
+
+
+  http_parser@1.0
+  node@0.10.33
+  v8@3.14.5.9
+  ares@1.9.0-DEV
+  uv@0.10.29
+  zlib@1.2.3
+  modules@11
+  openssl@1.0.1j
+
+  1 test completed.
+  2 tests completed.
+  3 tests completed.
+
+  no special characters    x 19,435,271 ops/sec ±0.85% (187 runs sampled)
+  single special character x  6,132,421 ops/sec ±0.67% (194 runs sampled)
+  many special characters  x  3,175,826 ops/sec ±0.65% (193 runs sampled)
+```
+
+## License
+
+  MIT
\ No newline at end of file
diff --git a/backend/node_modules/escape-html/index.js b/backend/node_modules/escape-html/index.js
new file mode 100644
index 0000000..bf9e226
--- /dev/null
+++ b/backend/node_modules/escape-html/index.js
@@ -0,0 +1,78 @@
+/*!
+ * escape-html
+ * Copyright(c) 2012-2013 TJ Holowaychuk
+ * Copyright(c) 2015 Andreas Lubbe
+ * Copyright(c) 2015 Tiancheng "Timothy" Gu
+ * MIT Licensed
+ */
+
+'use strict';
+
+/**
+ * Module variables.
+ * @private
+ */
+
+var matchHtmlRegExp = /["'&<>]/;
+
+/**
+ * Module exports.
+ * @public
+ */
+
+module.exports = escapeHtml;
+
+/**
+ * Escape special characters in the given string of html.
+ *
+ * @param  {string} string The string to escape for inserting into HTML
+ * @return {string}
+ * @public
+ */
+
+function escapeHtml(string) {
+  var str = '' + string;
+  var match = matchHtmlRegExp.exec(str);
+
+  if (!match) {
+    return str;
+  }
+
+  var escape;
+  var html = '';
+  var index = 0;
+  var lastIndex = 0;
+
+  for (index = match.index; index < str.length; index++) {
+    switch (str.charCodeAt(index)) {
+      case 34: // "
+        escape = '&quot;';
+        break;
+      case 38: // &
+        escape = '&amp;';
+        break;
+      case 39: // '
+        escape = '&#39;';
+        break;
+      case 60: // <
+        escape = '&lt;';
+        break;
+      case 62: // >
+        escape = '&gt;';
+        break;
+      default:
+        continue;
+    }
+
+    if (lastIndex !== index) {
+      html += str.substring(lastIndex, index);
+    }
+
+    lastIndex = index + 1;
+    html += escape;
+  }
+
+  return lastIndex !== index
+    ? html + str.substring(lastIndex, index)
+    : html;
+}
diff --git a/backend/node_modules/escape-html/package.json b/backend/node_modules/escape-html/package.json
new file mode 100644
index 0000000..57ec7bd
--- /dev/null
+++ b/backend/node_modules/escape-html/package.json
@@ -0,0 +1,24 @@
+{
+  "name": "escape-html",
+  "description": "Escape string for use in HTML",
+  "version": "1.0.3",
+  "license": "MIT",
+  "keywords": [
+    "escape",
+    "html",
+    "utility"
+  ],
+  "repository": "component/escape-html",
+  "devDependencies": {
+    "benchmark": "1.0.0",
+    "beautify-benchmark": "0.2.4"
+  },
+  "files": [
+    "LICENSE",
+    "Readme.md",
+    "index.js"
+  ],
+  "scripts": {
+    "bench": "node benchmark/index.js"
+  }
+}
diff --git a/backend/node_modules/etag/HISTORY.md b/backend/node_modules/etag/HISTORY.md
new file mode 100644
index 0000000..222b293
--- /dev/null
+++ b/backend/node_modules/etag/HISTORY.md
@@ -0,0 +1,83 @@
+1.8.1 / 2017-09-12
+==================
+
+  * perf: replace regular expression with substring
+
+1.8.0 / 2017-02-18
+==================
+
+  * Use SHA1 instead of MD5 for ETag hashing
+    - Improves performance for larger entities
+    - Works with FIPS 140-2 OpenSSL configuration
+
+1.7.0 / 2015-06-08
+==================
+
+  * Always include entity length in ETags for hash length extensions
+  * Generate non-Stats ETags using MD5 only (no longer CRC32)
+  * Improve stat performance by removing hashing
+  * Remove base64 padding in ETags to shorten
+  * Use MD5 instead of MD4 in weak ETags over 1KB
+
+1.6.0 / 2015-05-10
+==================
+
+  * Improve support for JXcore
+  * Remove requirement of `atime` in the stats object
+  * Support "fake" stats objects in environments without `fs`
+
+1.5.1 / 2014-11-19
+==================
+
+  * deps: crc@3.2.1
+    - Minor fixes
+
+1.5.0 / 2014-10-14
+==================
+
+  * Improve string performance
+  * Slightly improve speed for weak ETags over 1KB
+
+1.4.0 / 2014-09-21
+==================
+
+  * Support "fake" stats objects
+  * Support Node.js 0.6
+
+1.3.1 / 2014-09-14
+==================
+
+  * Use the (new and improved) `crc` for crc32
+
+1.3.0 / 2014-08-29
+==================
+
+  * Default strings to strong ETags
+  * Improve speed for weak ETags over 1KB
+
+1.2.1 / 2014-08-29
+==================
+
+  * Use the (much faster) `buffer-crc32` for crc32
+
+1.2.0 / 2014-08-24
+==================
+
+  * Add support for file stat objects
+
+1.1.0 / 2014-08-24
+==================
+
+  * Add fast-path for empty entity
+  * Add weak ETag generation
+  * Shrink size of generated ETags
+
+1.0.1 / 2014-08-24
+==================
+
+  * Fix behavior of string containing Unicode
+
+1.0.0 / 2014-05-18
+==================
+
+  * Initial release
diff --git a/backend/node_modules/etag/LICENSE b/backend/node_modules/etag/LICENSE
new file mode 100644
index 0000000..cab251c
--- /dev/null
+++ b/backend/node_modules/etag/LICENSE
@@ -0,0 +1,22 @@
+(The MIT License)
+
+Copyright (c) 2014-2016 Douglas Christopher Wilson
+
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of this software and associated documentation files (the
+'Software'), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sublicense, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to
+the following conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
diff --git a/backend/node_modules/etag/README.md b/backend/node_modules/etag/README.md
new file mode 100644
index 0000000..09c2169
--- /dev/null
+++ b/backend/node_modules/etag/README.md
@@ -0,0 +1,159 @@
+# etag
+
+[![NPM Version][npm-image]][npm-url]
+[![NPM Downloads][downloads-image]][downloads-url]
+[![Node.js Version][node-version-image]][node-version-url]
+[![Build Status][travis-image]][travis-url]
+[![Test Coverage][coveralls-image]][coveralls-url]
+
+Create simple HTTP ETags
+
+This module generates HTTP ETags (as defined in RFC 7232) for use in
+HTTP responses.
+
+## Installation
+
+This is a [Node.js](https://nodejs.org/en/) module available through the
+[npm registry](https://www.npmjs.com/). Installation is done using the
+[`npm install` command](https://docs.npmjs.com/getting-started/installing-npm-packages-locally):
+
+```sh
+$ npm install etag
+```
+
+## API
+
+<!-- eslint-disable no-unused-vars -->
+
+```js
+var etag = require('etag')
+```
+
+### etag(entity, [options])
+
+Generate a strong ETag for the given entity. This should be the complete
+body of the entity. Strings, `Buffer`s, and `fs.Stats` are accepted. By
+default, a strong ETag is generated except for `fs.Stats`, which will
+generate a weak ETag (this can be overwritten by `options.weak`).
+
+<!-- eslint-disable no-undef -->
+
+```js
+res.setHeader('ETag', etag(body))
+```
+
+#### Options
+
+`etag` accepts these properties in the options object.
+
+##### weak
+
+Specifies if the generated ETag will include the weak validator mark (that
+is, the leading `W/`). The actual entity tag is the same. The default value
+is `false`, unless the `entity` is `fs.Stats`, in which case it is `true`.
+
+## Testing
+
+```sh
+$ npm test
+```
+
+## Benchmark
+
+```bash
+$ npm run-script bench
+
+> etag@1.8.1 bench nodejs-etag
+> node benchmark/index.js
+
+  http_parser@2.7.0
+  node@6.11.1
+  v8@5.1.281.103
+  uv@1.11.0
+  zlib@1.2.11
+  ares@1.10.1-DEV
+  icu@58.2
+  modules@48
+  openssl@1.0.2k
+
+> node benchmark/body0-100b.js
+
+  100B body
+
+  4 tests completed.
+
+  buffer - strong x 258,647 ops/sec ±1.07% (180 runs sampled)
+  buffer - weak   x 263,812 ops/sec ±0.61% (184 runs sampled)
+  string - strong x 259,955 ops/sec ±1.19% (185 runs sampled)
+  string - weak   x 264,356 ops/sec ±1.09% (184 runs sampled)
+
+> node benchmark/body1-1kb.js
+
+  1KB body
+
+  4 tests completed.
+
+  buffer - strong x 189,018 ops/sec ±1.12% (182 runs sampled)
+  buffer - weak   x 190,586 ops/sec ±0.81% (186 runs sampled)
+  string - strong x 144,272 ops/sec ±0.96% (188 runs sampled)
+  string - weak   x 145,380 ops/sec ±1.43% (187 runs sampled)
+
+> node benchmark/body2-5kb.js
+
+  5KB body
+
+  4 tests completed.
+
+  buffer - strong x 92,435 ops/sec ±0.42% (188 runs sampled)
+  buffer - weak   x 92,373 ops/sec ±0.58% (189 runs sampled)
+  string - strong x 48,850 ops/sec ±0.56% (186 runs sampled)
+  string - weak   x 49,380 ops/sec ±0.56% (190 runs sampled)
+
+> node benchmark/body3-10kb.js
+
+  10KB body
+
+  4 tests completed.
+
+  buffer - strong x 55,989 ops/sec ±0.93% (188 runs sampled)
+  buffer - weak   x 56,148 ops/sec ±0.55% (190 runs sampled)
+  string - strong x 27,345 ops/sec ±0.43% (188 runs sampled)
+  string - weak   x 27,496 ops/sec ±0.45% (190 runs sampled)
+
+> node benchmark/body4-100kb.js
+
+  100KB body
+
+  4 tests completed.
+
+  buffer - strong x 7,083 ops/sec ±0.22% (190 runs sampled)
+  buffer - weak   x 7,115 ops/sec ±0.26% (191 runs sampled)
+  string - strong x 3,068 ops/sec ±0.34% (190 runs sampled)
+  string - weak   x 3,096 ops/sec ±0.35% (190 runs sampled)
+
+> node benchmark/stats.js
+
+  stat
+
+  4 tests completed.
+
+  real - strong x 871,642 ops/sec ±0.34% (189 runs sampled)
+  real - weak   x 867,613 ops/sec ±0.39% (190 runs sampled)
+  fake - strong x 401,051 ops/sec ±0.40% (189 runs sampled)
+  fake - weak   x 400,100 ops/sec ±0.47% (188 runs sampled)
+```
+
+## License
+
+[MIT](LICENSE)
+
+[npm-image]: https://img.shields.io/npm/v/etag.svg
+[npm-url]: https://npmjs.org/package/etag
+[node-version-image]: https://img.shields.io/node/v/etag.svg
+[node-version-url]: https://nodejs.org/en/download/
+[travis-image]: https://img.shields.io/travis/jshttp/etag/master.svg
+[travis-url]: https://travis-ci.org/jshttp/etag
+[coveralls-image]: https://img.shields.io/coveralls/jshttp/etag/master.svg
+[coveralls-url]: https://coveralls.io/r/jshttp/etag?branch=master
+[downloads-image]: https://img.shields.io/npm/dm/etag.svg
+[downloads-url]: https://npmjs.org/package/etag
diff --git a/backend/node_modules/etag/index.js b/backend/node_modules/etag/index.js
new file mode 100644
index 0000000..2a585c9
--- /dev/null
+++ b/backend/node_modules/etag/index.js
@@ -0,0 +1,131 @@
+/*!
+ * etag
+ * Copyright(c) 2014-2016 Douglas Christopher Wilson
+ * MIT Licensed
+ */
+
+'use strict'
+
+/**
+ * Module exports.
+ * @public
+ */
+
+module.exports = etag
+
+/**
+ * Module dependencies.
+ * @private
+ */
+
+var crypto = require('crypto')
+var Stats = require('fs').Stats
+
+/**
+ * Module variables.
+ * @private
+ */
+
+var toString = Object.prototype.toString
+
+/**
+ * Generate an entity tag.
+ *
+ * @param {Buffer|string} entity
+ * @return {string}
+ * @private
+ */
+
+function entitytag (entity) {
+  if (entity.length === 0) {
+    // fast-path empty
+    return '"0-2jmj7l5rSw0yVb/vlWAYkK/YBwk"'
+  }
+
+  // compute hash of entity
+  var hash = crypto
+    .createHash('sha1')
+    .update(entity, 'utf8')
+    .digest('base64')
+    .substring(0, 27)
+
+  // compute length of entity
+  var len = typeof entity === 'string'
+    ? Buffer.byteLength(entity, 'utf8')
+    : entity.length
+
+  return '"' + len.toString(16) + '-' + hash + '"'
+}
+
+/**
+ * Create a simple ETag.
+ *
+ * @param {string|Buffer|Stats} entity
+ * @param {object} [options]
+ * @param {boolean} [options.weak]
+ * @return {String}
+ * @public
+ */
+
+function etag (entity, options) {
+  if (entity == null) {
+    throw new TypeError('argument entity is required')
+  }
+
+  // support fs.Stats object
+  var isStats = isstats(entity)
+  var weak = options && typeof options.weak === 'boolean'
+    ? options.weak
+    : isStats
+
+  // validate argument
+  if (!isStats && typeof entity !== 'string' && !Buffer.isBuffer(entity)) {
+    throw new TypeError('argument entity must be string, Buffer, or fs.Stats')
+  }
+
+  // generate entity tag
+  var tag = isStats
+    ? stattag(entity)
+    : entitytag(entity)
+
+  return weak
+    ? 'W/' + tag
+    : tag
+}
+
+/**
+ * Determine if object is a Stats object.
+ *
+ * @param {object} obj
+ * @return {boolean}
+ * @api private
+ */
+
+function isstats (obj) {
+  // genuine fs.Stats
+  if (typeof Stats === 'function' && obj instanceof Stats) {
+    return true
+  }
+
+  // quack quack
+  return obj && typeof obj === 'object' &&
+    'ctime' in obj && toString.call(obj.ctime) === '[object Date]' &&
+    'mtime' in obj && toString.call(obj.mtime) === '[object Date]' &&
+    'ino' in obj && typeof obj.ino === 'number' &&
+    'size' in obj && typeof obj.size === 'number'
+}
+
+/**
+ * Generate a tag for a stat.
+ *
+ * @param {object} stat
+ * @return {string}
+ * @private
+ */
+
+function stattag (stat) {
+  var mtime = stat.mtime.getTime().toString(16)
+  var size = stat.size.toString(16)
+
+  return '"' + size + '-' + mtime + '"'
+}
diff --git a/backend/node_modules/etag/package.json b/backend/node_modules/etag/package.json
new file mode 100644
index 0000000..b06ab80
--- /dev/null
+++ b/backend/node_modules/etag/package.json
@@ -0,0 +1,47 @@
+{
+  "name": "etag",
+  "description": "Create simple HTTP ETags",
+  "version": "1.8.1",
+  "contributors": [
+    "Douglas Christopher Wilson <doug@somethingdoug.com>",
+    "David Björklund <david.bjorklund@gmail.com>"
+  ],
+  "license": "MIT",
+  "keywords": [
+    "etag",
+    "http",
+    "res"
+  ],
+  "repository": "jshttp/etag",
+  "devDependencies": {
+    "beautify-benchmark": "0.2.4",
+    "benchmark": "2.1.4",
+    "eslint": "3.19.0",
+    "eslint-config-standard": "10.2.1",
+    "eslint-plugin-import": "2.7.0",
+    "eslint-plugin-markdown": "1.0.0-beta.6",
+    "eslint-plugin-node": "5.1.1",
+    "eslint-plugin-promise": "3.5.0",
+    "eslint-plugin-standard": "3.0.1",
+    "istanbul": "0.4.5",
+    "mocha": "1.21.5",
+    "safe-buffer": "5.1.1",
+    "seedrandom": "2.4.3"
+  },
+  "files": [
+    "LICENSE",
+    "HISTORY.md",
+    "README.md",
+    "index.js"
+  ],
+  "engines": {
+    "node": ">= 0.6"
+  },
+  "scripts": {
+    "bench": "node benchmark/index.js",
+    "lint": "eslint --plugin markdown --ext js,md .",
+    "test": "mocha --reporter spec --bail --check-leaks test/",
+    "test-cov": "istanbul cover node_modules/mocha/bin/_mocha -- --reporter dot --check-leaks test/",
+    "test-travis": "istanbul cover node_modules/mocha/bin/_mocha --report lcovonly -- --reporter spec --check-leaks test/"
+  }
+}
diff --git a/backend/node_modules/express/History.md b/backend/node_modules/express/History.md
new file mode 100644
index 0000000..5b6cba5
--- /dev/null
+++ b/backend/node_modules/express/History.md
@@ -0,0 +1,3858 @@
+5.1.0 / 2025-03-31
+========================
+
+* Add support for `Uint8Array` in `res.send()`
+* Add support for ETag option in `res.sendFile()`
+* Add support for multiple links with the same rel in `res.links()`
+* Add funding field to package.json
+* perf: use loop for acceptParams
+* refactor: prefix built-in node module imports
+* deps: remove `setprototypeof`
+* deps: remove `safe-buffer`
+* deps: remove `utils-merge`
+* deps: remove `methods`
+* deps: remove `depd`
+* deps: `debug@^4.4.0`
+* deps: `body-parser@^2.2.0`
+* deps: `router@^2.2.0`
+* deps: `content-type@^1.0.5`
+* deps: `finalhandler@^2.1.0`
+* deps: `qs@^6.14.0`
+* deps: `server-static@2.2.0`
+* deps: `type-is@2.0.1`
+
+5.0.1 / 2024-10-08
+==========
+
+* Update `cookie` semver lock to address [CVE-2024-47764](https://nvd.nist.gov/vuln/detail/CVE-2024-47764)
+
+5.0.0 / 2024-09-10
+=========================
+* remove:
+  - `path-is-absolute` dependency - use `path.isAbsolute` instead
+* breaking:
+  * `res.status()` accepts only integers, and input must be greater than 99 and less than 1000
+    * will throw a `RangeError: Invalid status code: ${code}. Status code must be greater than 99 and less than 1000.` for inputs outside this range
+    * will throw a `TypeError: Invalid status code: ${code}. Status code must be an integer.` for non integer inputs
+  * deps: send@1.0.0
+  * `res.redirect('back')` and `res.location('back')` is no longer a supported magic string, explicitly use `req.get('Referrer') || '/'`.
+* change:
+  - `res.clearCookie` will ignore user provided `maxAge` and `expires` options
+* deps: cookie-signature@^1.2.1
+* deps: debug@4.3.6
+* deps: merge-descriptors@^2.0.0
+* deps: serve-static@^2.1.0
+* deps: qs@6.13.0
+* deps: accepts@^2.0.0
+* deps: mime-types@^3.0.0
+  - `application/javascript` => `text/javascript`
+* deps: type-is@^2.0.0
+* deps: content-disposition@^1.0.0
+* deps: finalhandler@^2.0.0
+* deps: fresh@^2.0.0
+* deps: body-parser@^2.0.1
+* deps: send@^1.1.0
+
+5.0.0-beta.3 / 2024-03-25
+=========================
+
+This incorporates all changes after 4.19.1 up to 4.19.2.
+
+5.0.0-beta.2 / 2024-03-20
+=========================
+
+This incorporates all changes after 4.17.2 up to 4.19.1.
+
+5.0.0-beta.1 / 2022-02-14
+=========================
+
+This is the first Express 5.0 beta release, based off 4.17.2 and includes
+changes from 5.0.0-alpha.8.
+
+  * change:
+    - Default "query parser" setting to `'simple'`
+    - Requires Node.js 4+
+    - Use `mime-types` for file to content type mapping
+  * deps: array-flatten@3.0.0
+  * deps: body-parser@2.0.0-beta.1
+    - `req.body` is no longer always initialized to `{}`
+    - `urlencoded` parser now defaults `extended` to `false`
+    - Use `on-finished` to determine when body read
+  * deps: router@2.0.0-beta.1
+    - Add new `?`, `*`, and `+` parameter modifiers
+    - Internalize private `router.process_params` method
+    - Matching group expressions are only RegExp syntax
+    - Named matching groups no longer available by position in `req.params`
+    - Regular expressions can only be used in a matching group
+    - Remove `debug` dependency
+    - Special `*` path segment behavior removed
+    - deps: array-flatten@3.0.0
+    - deps: parseurl@~1.3.3
+    - deps: path-to-regexp@3.2.0
+    - deps: setprototypeof@1.2.0
+  * deps: send@1.0.0-beta.1
+    - Change `dotfiles` option default to `'ignore'`
+    - Remove `hidden` option; use `dotfiles` option instead
+    - Use `mime-types` for file to content type mapping
+    - deps: debug@3.1.0
+  * deps: serve-static@2.0.0-beta.1
+    - Change `dotfiles` option default to `'ignore'`
+    - Remove `hidden` option; use `dotfiles` option instead
+    - Use `mime-types` for file to content type mapping
+    - Remove `express.static.mime` export; use `mime-types` package instead
+    - deps: send@1.0.0-beta.1
+
+5.0.0-alpha.8 / 2020-03-25
+==========================
+
+This is the eighth Express 5.0 alpha release, based off 4.17.1 and includes
+changes from 5.0.0-alpha.7.
+
+5.0.0-alpha.7 / 2018-10-26
+==========================
+
+This is the seventh Express 5.0 alpha release, based off 4.16.4 and includes
+changes from 5.0.0-alpha.6.
+
+The major change with this alpha is the basic support for returned, rejected
+Promises in the router.
+
+  * remove:
+    - `path-to-regexp` dependency
+  * deps: debug@3.1.0
+    - Add `DEBUG_HIDE_DATE` environment variable
+    - Change timer to per-namespace instead of global
+    - Change non-TTY date format
+    - Remove `DEBUG_FD` environment variable support
+    - Support 256 namespace colors
+  * deps: router@2.0.0-alpha.1
+    - Add basic support for returned, rejected Promises
+    - Fix JSDoc for `Router` constructor
+    - deps: debug@3.1.0
+    - deps: parseurl@~1.3.2
+    - deps: setprototypeof@1.1.0
+    - deps: utils-merge@1.0.1
+
+5.0.0-alpha.6 / 2017-09-24
+==========================
+
+This is the sixth Express 5.0 alpha release, based off 4.15.5 and includes
+changes from 5.0.0-alpha.5.
+
+  * remove:
+    - `res.redirect(url, status)` signature - use `res.redirect(status, url)`
+    - `res.send(status, body)` signature - use `res.status(status).send(body)`
+  * deps: router@~1.3.1
+    - deps: debug@2.6.8
+
+5.0.0-alpha.5 / 2017-03-06
+==========================
+
+This is the fifth Express 5.0 alpha release, based off 4.15.2 and includes
+changes from 5.0.0-alpha.4.
+
+5.0.0-alpha.4 / 2017-03-01
+==========================
+
+This is the fourth Express 5.0 alpha release, based off 4.15.0 and includes
+changes from 5.0.0-alpha.3.
+
+  * remove:
+    - Remove Express 3.x middleware error stubs
+  * deps: router@~1.3.0
+    - Add `next("router")` to exit from router
+    - Fix case where `router.use` skipped requests routes did not
+    - Skip routing when `req.url` is not set
+    - Use `%o` in path debug to tell types apart
+    - deps: debug@2.6.1
+    - deps: setprototypeof@1.0.3
+    - perf: add fast match path for `*` route
+
+5.0.0-alpha.3 / 2017-01-28
+==========================
+
+This is the third Express 5.0 alpha release, based off 4.14.1 and includes
+changes from 5.0.0-alpha.2.
+
+  * remove:
+    - `res.json(status, obj)` signature - use `res.status(status).json(obj)`
+    - `res.jsonp(status, obj)` signature - use `res.status(status).jsonp(obj)`
+    - `res.vary()` (no arguments) -- provide a field name as an argument
+  * deps: array-flatten@2.1.1
+  * deps: path-is-absolute@1.0.1
+  * deps: router@~1.1.5
+    - deps: array-flatten@2.0.1
+    - deps: methods@~1.1.2
+    - deps: parseurl@~1.3.1
+    - deps: setprototypeof@1.0.2
+
+5.0.0-alpha.2 / 2015-07-06
+==========================
+
+This is the second Express 5.0 alpha release, based off 4.13.1 and includes
+changes from 5.0.0-alpha.1.
+
+  * remove:
+    - `app.param(fn)`
+    - `req.param()` -- use `req.params`, `req.body`, or `req.query` instead
+  * change:
+    - `res.render` callback is always async, even for sync view engines
+    - The leading `:` character in `name` for `app.param(name, fn)` is no longer removed
+    - Use `router` module for routing
+    - Use `path-is-absolute` module for absolute path detection
+
+5.0.0-alpha.1 / 2014-11-06
+==========================
+
+This is the first Express 5.0 alpha release, based off 4.10.1.
+
+  * remove:
+    - `app.del` - use `app.delete`
+    - `req.acceptsCharset` - use `req.acceptsCharsets`
+    - `req.acceptsEncoding` - use `req.acceptsEncodings`
+    - `req.acceptsLanguage` - use `req.acceptsLanguages`
+    - `res.json(obj, status)` signature - use `res.json(status, obj)`
+    - `res.jsonp(obj, status)` signature - use `res.jsonp(status, obj)`
+    - `res.send(body, status)` signature - use `res.send(status, body)`
+    - `res.send(status)` signature - use `res.sendStatus(status)`
+    - `res.sendfile` - use `res.sendFile` instead
+    - `express.query` middleware
+  * change:
+    - `req.host` now returns host (`hostname:port`) - use `req.hostname` for only hostname
+    - `req.query` is now a getter instead of a plain property
+  * add:
+    - `app.router` is a reference to the base router
+
+4.20.0 / 2024-09-10
+==========
+  * deps: serve-static@0.16.0
+    * Remove link renderization in html while redirecting
+  * deps: send@0.19.0
+    * Remove link renderization in html while redirecting
+  * deps: body-parser@0.6.0
+    * add `depth` option to customize the depth level in the parser
+    * IMPORTANT: The default `depth` level for parsing URL-encoded data is now `32` (previously was `Infinity`)
+  * Remove link renderization in html while using `res.redirect`
+  * deps: path-to-regexp@0.1.10
+    - Adds support for named matching groups in the routes using a regex
+    - Adds backtracking protection to parameters without regexes defined
+  * deps: encodeurl@~2.0.0
+    - Removes encoding of `\`, `|`, and `^` to align better with URL spec
+  * Deprecate passing `options.maxAge` and `options.expires` to `res.clearCookie`
+    - Will be ignored in v5, clearCookie will set a cookie with an expires in the past to instruct clients to delete the cookie
+
+4.19.2 / 2024-03-25
+==========
+
+  * Improved fix for open redirect allow list bypass
+
+4.19.1 / 2024-03-20
+==========
+
+  * Allow passing non-strings to res.location with new encoding handling checks
+
+4.19.0 / 2024-03-20
+==========
+
+  * Prevent open redirect allow list bypass due to encodeurl
+  * deps: cookie@0.6.0
+
+4.18.3 / 2024-02-29
+==========
+
+  * Fix routing requests without method
+  * deps: body-parser@1.20.2
+    - Fix strict json error message on Node.js 19+
+    - deps: content-type@~1.0.5
+    - deps: raw-body@2.5.2
+  * deps: cookie@0.6.0
+    - Add `partitioned` option
+
+4.18.2 / 2022-10-08
+===================
+
+  * Fix regression routing a large stack in a single route
+  * deps: body-parser@1.20.1
+    - deps: qs@6.11.0
+    - perf: remove unnecessary object clone
+  * deps: qs@6.11.0
+
+4.18.1 / 2022-04-29
+===================
+
+  * Fix hanging on large stack of sync routes
+
+4.18.0 / 2022-04-25
+===================
+
+  * Add "root" option to `res.download`
+  * Allow `options` without `filename` in `res.download`
+  * Deprecate string and non-integer arguments to `res.status`
+  * Fix behavior of `null`/`undefined` as `maxAge` in `res.cookie`
+  * Fix handling very large stacks of sync middleware
+  * Ignore `Object.prototype` values in settings through `app.set`/`app.get`
+  * Invoke `default` with same arguments as types in `res.format`
+  * Support proper 205 responses using `res.send`
+  * Use `http-errors` for `res.format` error
+  * deps: body-parser@1.20.0
+    - Fix error message for json parse whitespace in `strict`
+    - Fix internal error when inflated body exceeds limit
+    - Prevent loss of async hooks context
+    - Prevent hanging when request already read
+    - deps: depd@2.0.0
+    - deps: http-errors@2.0.0
+    - deps: on-finished@2.4.1
+    - deps: qs@6.10.3
+    - deps: raw-body@2.5.1
+  * deps: cookie@0.5.0
+    - Add `priority` option
+    - Fix `expires` option to reject invalid dates
+  * deps: depd@2.0.0
+    - Replace internal `eval` usage with `Function` constructor
+    - Use instance methods on `process` to check for listeners
+  * deps: finalhandler@1.2.0
+    - Remove set content headers that break response
+    - deps: on-finished@2.4.1
+    - deps: statuses@2.0.1
+  * deps: on-finished@2.4.1
+    - Prevent loss of async hooks context
+  * deps: qs@6.10.3
+  * deps: send@0.18.0
+    - Fix emitted 416 error missing headers property
+    - Limit the headers removed for 304 response
+    - deps: depd@2.0.0
+    - deps: destroy@1.2.0
+    - deps: http-errors@2.0.0
+    - deps: on-finished@2.4.1
+    - deps: statuses@2.0.1
+  * deps: serve-static@1.15.0
+    - deps: send@0.18.0
+  * deps: statuses@2.0.1
+    - Remove code 306
+    - Rename `425 Unordered Collection` to standard `425 Too Early`
+
+4.17.3 / 2022-02-16
+===================
+
+  * deps: accepts@~1.3.8
+    - deps: mime-types@~2.1.34
+    - deps: negotiator@0.6.3
+  * deps: body-parser@1.19.2
+    - deps: bytes@3.1.2
+    - deps: qs@6.9.7
+    - deps: raw-body@2.4.3
+  * deps: cookie@0.4.2
+  * deps: qs@6.9.7
+    * Fix handling of `__proto__` keys
+  * pref: remove unnecessary regexp for trust proxy
+
+4.17.2 / 2021-12-16
+===================
+
+  * Fix handling of `undefined` in `res.jsonp`
+  * Fix handling of `undefined` when `"json escape"` is enabled
+  * Fix incorrect middleware execution with unanchored `RegExp`s
+  * Fix `res.jsonp(obj, status)` deprecation message
+  * Fix typo in `res.is` JSDoc
+  * deps: body-parser@1.19.1
+    - deps: bytes@3.1.1
+    - deps: http-errors@1.8.1
+    - deps: qs@6.9.6
+    - deps: raw-body@2.4.2
+    - deps: safe-buffer@5.2.1
+    - deps: type-is@~1.6.18
+  * deps: content-disposition@0.5.4
+    - deps: safe-buffer@5.2.1
+  * deps: cookie@0.4.1
+    - Fix `maxAge` option to reject invalid values
+  * deps: proxy-addr@~2.0.7
+    - Use `req.socket` over deprecated `req.connection`
+    - deps: forwarded@0.2.0
+    - deps: ipaddr.js@1.9.1
+  * deps: qs@6.9.6
+  * deps: safe-buffer@5.2.1
+  * deps: send@0.17.2
+    - deps: http-errors@1.8.1
+    - deps: ms@2.1.3
+    - pref: ignore empty http tokens
+  * deps: serve-static@1.14.2
+    - deps: send@0.17.2
+  * deps: setprototypeof@1.2.0
+
+4.17.1 / 2019-05-25
+===================
+
+  * Revert "Improve error message for `null`/`undefined` to `res.status`"
+
+4.17.0 / 2019-05-16
+===================
+
+  * Add `express.raw` to parse bodies into `Buffer`
+  * Add `express.text` to parse bodies into string
+  * Improve error message for non-strings to `res.sendFile`
+  * Improve error message for `null`/`undefined` to `res.status`
+  * Support multiple hosts in `X-Forwarded-Host`
+  * deps: accepts@~1.3.7
+  * deps: body-parser@1.19.0
+    - Add encoding MIK
+    - Add petabyte (`pb`) support
+    - Fix parsing array brackets after index
+    - deps: bytes@3.1.0
+    - deps: http-errors@1.7.2
+    - deps: iconv-lite@0.4.24
+    - deps: qs@6.7.0
+    - deps: raw-body@2.4.0
+    - deps: type-is@~1.6.17
+  * deps: content-disposition@0.5.3
+  * deps: cookie@0.4.0
+    - Add `SameSite=None` support
+  * deps: finalhandler@~1.1.2
+    - Set stricter `Content-Security-Policy` header
+    - deps: parseurl@~1.3.3
+    - deps: statuses@~1.5.0
+  * deps: parseurl@~1.3.3
+  * deps: proxy-addr@~2.0.5
+    - deps: ipaddr.js@1.9.0
+  * deps: qs@6.7.0
+    - Fix parsing array brackets after index
+  * deps: range-parser@~1.2.1
+  * deps: send@0.17.1
+    - Set stricter CSP header in redirect & error responses
+    - deps: http-errors@~1.7.2
+    - deps: mime@1.6.0
+    - deps: ms@2.1.1
+    - deps: range-parser@~1.2.1
+    - deps: statuses@~1.5.0
+    - perf: remove redundant `path.normalize` call
+  * deps: serve-static@1.14.1
+    - Set stricter CSP header in redirect response
+    - deps: parseurl@~1.3.3
+    - deps: send@0.17.1
+  * deps: setprototypeof@1.1.1
+  * deps: statuses@~1.5.0
+    - Add `103 Early Hints`
+  * deps: type-is@~1.6.18
+    - deps: mime-types@~2.1.24
+    - perf: prevent internal `throw` on invalid type
+
+4.16.4 / 2018-10-10
+===================
+
+  * Fix issue where `"Request aborted"` may be logged in `res.sendfile`
+  * Fix JSDoc for `Router` constructor
+  * deps: body-parser@1.18.3
+    - Fix deprecation warnings on Node.js 10+
+    - Fix stack trace for strict json parse error
+    - deps: depd@~1.1.2
+    - deps: http-errors@~1.6.3
+    - deps: iconv-lite@0.4.23
+    - deps: qs@6.5.2
+    - deps: raw-body@2.3.3
+    - deps: type-is@~1.6.16
+  * deps: proxy-addr@~2.0.4
+    - deps: ipaddr.js@1.8.0
+  * deps: qs@6.5.2
+  * deps: safe-buffer@5.1.2
+
+4.16.3 / 2018-03-12
+===================
+
+  * deps: accepts@~1.3.5
+    - deps: mime-types@~2.1.18
+  * deps: depd@~1.1.2
+    - perf: remove argument reassignment
+  * deps: encodeurl@~1.0.2
+    - Fix encoding `%` as last character
+  * deps: finalhandler@1.1.1
+    - Fix 404 output for bad / missing pathnames
+    - deps: encodeurl@~1.0.2
+    - deps: statuses@~1.4.0
+  * deps: proxy-addr@~2.0.3
+    - deps: ipaddr.js@1.6.0
+  * deps: send@0.16.2
+    - Fix incorrect end tag in default error & redirects
+    - deps: depd@~1.1.2
+    - deps: encodeurl@~1.0.2
+    - deps: statuses@~1.4.0
+  * deps: serve-static@1.13.2
+    - Fix incorrect end tag in redirects
+    - deps: encodeurl@~1.0.2
+    - deps: send@0.16.2
+  * deps: statuses@~1.4.0
+  * deps: type-is@~1.6.16
+    - deps: mime-types@~2.1.18
+
+4.16.2 / 2017-10-09
+===================
+
+  * Fix `TypeError` in `res.send` when given `Buffer` and `ETag` header set
+  * perf: skip parsing of entire `X-Forwarded-Proto` header
+
+4.16.1 / 2017-09-29
+===================
+
+  * deps: send@0.16.1
+  * deps: serve-static@1.13.1
+    - Fix regression when `root` is incorrectly set to a file
+    - deps: send@0.16.1
+
+4.16.0 / 2017-09-28
+===================
+
+  * Add `"json escape"` setting for `res.json` and `res.jsonp`
+  * Add `express.json` and `express.urlencoded` to parse bodies
+  * Add `options` argument to `res.download`
+  * Improve error message when autoloading invalid view engine
+  * Improve error messages when non-function provided as middleware
+  * Skip `Buffer` encoding when not generating ETag for small response
+  * Use `safe-buffer` for improved Buffer API
+  * deps: accepts@~1.3.4
+    - deps: mime-types@~2.1.16
+  * deps: content-type@~1.0.4
+    - perf: remove argument reassignment
+    - perf: skip parameter parsing when no parameters
+  * deps: etag@~1.8.1
+    - perf: replace regular expression with substring
+  * deps: finalhandler@1.1.0
+    - Use `res.headersSent` when available
+  * deps: parseurl@~1.3.2
+    - perf: reduce overhead for full URLs
+    - perf: unroll the "fast-path" `RegExp`
+  * deps: proxy-addr@~2.0.2
+    - Fix trimming leading / trailing OWS in `X-Forwarded-For`
+    - deps: forwarded@~0.1.2
+    - deps: ipaddr.js@1.5.2
+    - perf: reduce overhead when no `X-Forwarded-For` header
+  * deps: qs@6.5.1
+    - Fix parsing & compacting very deep objects
+  * deps: send@0.16.0
+    - Add 70 new types for file extensions
+    - Add `immutable` option
+    - Fix missing `</html>` in default error & redirects
+    - Set charset as "UTF-8" for .js and .json
+    - Use instance methods on steam to check for listeners
+    - deps: mime@1.4.1
+    - perf: improve path validation speed
+  * deps: serve-static@1.13.0
+    - Add 70 new types for file extensions
+    - Add `immutable` option
+    - Set charset as "UTF-8" for .js and .json
+    - deps: send@0.16.0
+  * deps: setprototypeof@1.1.0
+  * deps: utils-merge@1.0.1
+  * deps: vary@~1.1.2
+    - perf: improve header token parsing speed
+  * perf: re-use options object when generating ETags
+  * perf: remove dead `.charset` set in `res.jsonp`
+
+4.15.5 / 2017-09-24
+===================
+
+  * deps: debug@2.6.9
+  * deps: finalhandler@~1.0.6
+    - deps: debug@2.6.9
+    - deps: parseurl@~1.3.2
+  * deps: fresh@0.5.2
+    - Fix handling of modified headers with invalid dates
+    - perf: improve ETag match loop
+    - perf: improve `If-None-Match` token parsing
+  * deps: send@0.15.6
+    - Fix handling of modified headers with invalid dates
+    - deps: debug@2.6.9
+    - deps: etag@~1.8.1
+    - deps: fresh@0.5.2
+    - perf: improve `If-Match` token parsing
+  * deps: serve-static@1.12.6
+    - deps: parseurl@~1.3.2
+    - deps: send@0.15.6
+    - perf: improve slash collapsing
+
+4.15.4 / 2017-08-06
+===================
+
+  * deps: debug@2.6.8
+  * deps: depd@~1.1.1
+    - Remove unnecessary `Buffer` loading
+  * deps: finalhandler@~1.0.4
+    - deps: debug@2.6.8
+  * deps: proxy-addr@~1.1.5
+    - Fix array argument being altered
+    - deps: ipaddr.js@1.4.0
+  * deps: qs@6.5.0
+  * deps: send@0.15.4
+    - deps: debug@2.6.8
+    - deps: depd@~1.1.1
+    - deps: http-errors@~1.6.2
+  * deps: serve-static@1.12.4
+    - deps: send@0.15.4
+
+4.15.3 / 2017-05-16
+===================
+
+  * Fix error when `res.set` cannot add charset to `Content-Type`
+  * deps: debug@2.6.7
+    - Fix `DEBUG_MAX_ARRAY_LENGTH`
+    - deps: ms@2.0.0
+  * deps: finalhandler@~1.0.3
+    - Fix missing `</html>` in HTML document
+    - deps: debug@2.6.7
+  * deps: proxy-addr@~1.1.4
+    - deps: ipaddr.js@1.3.0
+  * deps: send@0.15.3
+    - deps: debug@2.6.7
+    - deps: ms@2.0.0
+  * deps: serve-static@1.12.3
+    - deps: send@0.15.3
+  * deps: type-is@~1.6.15
+    - deps: mime-types@~2.1.15
+  * deps: vary@~1.1.1
+    - perf: hoist regular expression
+
+4.15.2 / 2017-03-06
+===================
+
+  * deps: qs@6.4.0
+    - Fix regression parsing keys starting with `[`
+
+4.15.1 / 2017-03-05
+===================
+
+  * deps: send@0.15.1
+    - Fix issue when `Date.parse` does not return `NaN` on invalid date
+    - Fix strict violation in broken environments
+  * deps: serve-static@1.12.1
+    - Fix issue when `Date.parse` does not return `NaN` on invalid date
+    - deps: send@0.15.1
+
+4.15.0 / 2017-03-01
+===================
+
+  * Add debug message when loading view engine
+  * Add `next("router")` to exit from router
+  * Fix case where `router.use` skipped requests routes did not
+  * Remove usage of `res._headers` private field
+    - Improves compatibility with Node.js 8 nightly
+  * Skip routing when `req.url` is not set
+  * Use `%o` in path debug to tell types apart
+  * Use `Object.create` to setup request & response prototypes
+  * Use `setprototypeof` module to replace `__proto__` setting
+  * Use `statuses` instead of `http` module for status messages
+  * deps: debug@2.6.1
+    - Allow colors in workers
+    - Deprecated `DEBUG_FD` environment variable set to `3` or higher
+    - Fix error when running under React Native
+    - Use same color for same namespace
+    - deps: ms@0.7.2
+  * deps: etag@~1.8.0
+    - Use SHA1 instead of MD5 for ETag hashing
+    - Works with FIPS 140-2 OpenSSL configuration
+  * deps: finalhandler@~1.0.0
+    - Fix exception when `err` cannot be converted to a string
+    - Fully URL-encode the pathname in the 404
+    - Only include the pathname in the 404 message
+    - Send complete HTML document
+    - Set `Content-Security-Policy: default-src 'self'` header
+    - deps: debug@2.6.1
+  * deps: fresh@0.5.0
+    - Fix false detection of `no-cache` request directive
+    - Fix incorrect result when `If-None-Match` has both `*` and ETags
+    - Fix weak `ETag` matching to match spec
+    - perf: delay reading header values until needed
+    - perf: enable strict mode
+    - perf: hoist regular expressions
+    - perf: remove duplicate conditional
+    - perf: remove unnecessary boolean coercions
+    - perf: skip checking modified time if ETag check failed
+    - perf: skip parsing `If-None-Match` when no `ETag` header
+    - perf: use `Date.parse` instead of `new Date`
+  * deps: qs@6.3.1
+    - Fix array parsing from skipping empty values
+    - Fix compacting nested arrays
+  * deps: send@0.15.0
+    - Fix false detection of `no-cache` request directive
+    - Fix incorrect result when `If-None-Match` has both `*` and ETags
+    - Fix weak `ETag` matching to match spec
+    - Remove usage of `res._headers` private field
+    - Support `If-Match` and `If-Unmodified-Since` headers
+    - Use `res.getHeaderNames()` when available
+    - Use `res.headersSent` when available
+    - deps: debug@2.6.1
+    - deps: etag@~1.8.0
+    - deps: fresh@0.5.0
+    - deps: http-errors@~1.6.1
+  * deps: serve-static@1.12.0
+    - Fix false detection of `no-cache` request directive
+    - Fix incorrect result when `If-None-Match` has both `*` and ETags
+    - Fix weak `ETag` matching to match spec
+    - Remove usage of `res._headers` private field
+    - Send complete HTML document in redirect response
+    - Set default CSP header in redirect response
+    - Support `If-Match` and `If-Unmodified-Since` headers
+    - Use `res.getHeaderNames()` when available
+    - Use `res.headersSent` when available
+    - deps: send@0.15.0
+  * perf: add fast match path for `*` route
+  * perf: improve `req.ips` performance
+
+4.14.1 / 2017-01-28
+===================
+
+  * deps: content-disposition@0.5.2
+  * deps: finalhandler@0.5.1
+    - Fix exception when `err.headers` is not an object
+    - deps: statuses@~1.3.1
+    - perf: hoist regular expressions
+    - perf: remove duplicate validation path
+  * deps: proxy-addr@~1.1.3
+    - deps: ipaddr.js@1.2.0
+  * deps: send@0.14.2
+    - deps: http-errors@~1.5.1
+    - deps: ms@0.7.2
+    - deps: statuses@~1.3.1
+  * deps: serve-static@~1.11.2
+    - deps: send@0.14.2
+  * deps: type-is@~1.6.14
+    - deps: mime-types@~2.1.13
+
+4.14.0 / 2016-06-16
+===================
+
+  * Add `acceptRanges` option to `res.sendFile`/`res.sendfile`
+  * Add `cacheControl` option to `res.sendFile`/`res.sendfile`
+  * Add `options` argument to `req.range`
+    - Includes the `combine` option
+  * Encode URL in `res.location`/`res.redirect` if not already encoded
+  * Fix some redirect handling in `res.sendFile`/`res.sendfile`
+  * Fix Windows absolute path check using forward slashes
+  * Improve error with invalid arguments to `req.get()`
+  * Improve performance for `res.json`/`res.jsonp` in most cases
+  * Improve `Range` header handling in `res.sendFile`/`res.sendfile`
+  * deps: accepts@~1.3.3
+    - Fix including type extensions in parameters in `Accept` parsing
+    - Fix parsing `Accept` parameters with quoted equals
+    - Fix parsing `Accept` parameters with quoted semicolons
+    - Many performance improvements
+    - deps: mime-types@~2.1.11
+    - deps: negotiator@0.6.1
+  * deps: content-type@~1.0.2
+    - perf: enable strict mode
+  * deps: cookie@0.3.1
+    - Add `sameSite` option
+    - Fix cookie `Max-Age` to never be a floating point number
+    - Improve error message when `encode` is not a function
+    - Improve error message when `expires` is not a `Date`
+    - Throw better error for invalid argument to parse
+    - Throw on invalid values provided to `serialize`
+    - perf: enable strict mode
+    - perf: hoist regular expression
+    - perf: use for loop in parse
+    - perf: use string concatenation for serialization
+  * deps: finalhandler@0.5.0
+    - Change invalid or non-numeric status code to 500
+    - Overwrite status message to match set status code
+    - Prefer `err.statusCode` if `err.status` is invalid
+    - Set response headers from `err.headers` object
+    - Use `statuses` instead of `http` module for status messages
+  * deps: proxy-addr@~1.1.2
+    - Fix accepting various invalid netmasks
+    - Fix IPv6-mapped IPv4 validation edge cases
+    - IPv4 netmasks must be contiguous
+    - IPv6 addresses cannot be used as a netmask
+    - deps: ipaddr.js@1.1.1
+  * deps: qs@6.2.0
+    - Add `decoder` option in `parse` function
+  * deps: range-parser@~1.2.0
+    - Add `combine` option to combine overlapping ranges
+    - Fix incorrectly returning -1 when there is at least one valid range
+    - perf: remove internal function
+  * deps: send@0.14.1
+    - Add `acceptRanges` option
+    - Add `cacheControl` option
+    - Attempt to combine multiple ranges into single range
+    - Correctly inherit from `Stream` class
+    - Fix `Content-Range` header in 416 responses when using `start`/`end` options
+    - Fix `Content-Range` header missing from default 416 responses
+    - Fix redirect error when `path` contains raw non-URL characters
+    - Fix redirect when `path` starts with multiple forward slashes
+    - Ignore non-byte `Range` headers
+    - deps: http-errors@~1.5.0
+    - deps: range-parser@~1.2.0
+    - deps: statuses@~1.3.0
+    - perf: remove argument reassignment
+  * deps: serve-static@~1.11.1
+    - Add `acceptRanges` option
+    - Add `cacheControl` option
+    - Attempt to combine multiple ranges into single range
+    - Fix redirect error when `req.url` contains raw non-URL characters
+    - Ignore non-byte `Range` headers
+    - Use status code 301 for redirects
+    - deps: send@0.14.1
+  * deps: type-is@~1.6.13
+    - Fix type error when given invalid type to match against
+    - deps: mime-types@~2.1.11
+  * deps: vary@~1.1.0
+    - Only accept valid field names in the `field` argument
+  * perf: use strict equality when possible
+
+4.13.4 / 2016-01-21
+===================
+
+  * deps: content-disposition@0.5.1
+    - perf: enable strict mode
+  * deps: cookie@0.1.5
+    - Throw on invalid values provided to `serialize`
+  * deps: depd@~1.1.0
+    - Support web browser loading
+    - perf: enable strict mode
+  * deps: escape-html@~1.0.3
+    - perf: enable strict mode
+    - perf: optimize string replacement
+    - perf: use faster string coercion
+  * deps: finalhandler@0.4.1
+    - deps: escape-html@~1.0.3
+  * deps: merge-descriptors@1.0.1
+    - perf: enable strict mode
+  * deps: methods@~1.1.2
+    - perf: enable strict mode
+  * deps: parseurl@~1.3.1
+    - perf: enable strict mode
+  * deps: proxy-addr@~1.0.10
+    - deps: ipaddr.js@1.0.5
+    - perf: enable strict mode
+  * deps: range-parser@~1.0.3
+    - perf: enable strict mode
+  * deps: send@0.13.1
+    - deps: depd@~1.1.0
+    - deps: destroy@~1.0.4
+    - deps: escape-html@~1.0.3
+    - deps: range-parser@~1.0.3
+  * deps: serve-static@~1.10.2
+    - deps: escape-html@~1.0.3
+    - deps: parseurl@~1.3.0
+    - deps: send@0.13.1
+
+4.13.3 / 2015-08-02
+===================
+
+  * Fix infinite loop condition using `mergeParams: true`
+  * Fix inner numeric indices incorrectly altering parent `req.params`
+
+4.13.2 / 2015-07-31
+===================
+
+  * deps: accepts@~1.2.12
+    - deps: mime-types@~2.1.4
+  * deps: array-flatten@1.1.1
+    - perf: enable strict mode
+  * deps: path-to-regexp@0.1.7
+    - Fix regression with escaped round brackets and matching groups
+  * deps: type-is@~1.6.6
+    - deps: mime-types@~2.1.4
+
+4.13.1 / 2015-07-05
+===================
+
+  * deps: accepts@~1.2.10
+    - deps: mime-types@~2.1.2
+  * deps: qs@4.0.0
+    - Fix dropping parameters like `hasOwnProperty`
+    - Fix various parsing edge cases
+  * deps: type-is@~1.6.4
+    - deps: mime-types@~2.1.2
+    - perf: enable strict mode
+    - perf: remove argument reassignment
+
+4.13.0 / 2015-06-20
+===================
+
+  * Add settings to debug output
+  * Fix `res.format` error when only `default` provided
+  * Fix issue where `next('route')` in `app.param` would incorrectly skip values
+  * Fix hiding platform issues with `decodeURIComponent`
+    - Only `URIError`s are a 400
+  * Fix using `*` before params in routes
+  * Fix using capture groups before params in routes
+  * Simplify `res.cookie` to call `res.append`
+  * Use `array-flatten` module for flattening arrays
+  * deps: accepts@~1.2.9
+    - deps: mime-types@~2.1.1
+    - perf: avoid argument reassignment & argument slice
+    - perf: avoid negotiator recursive construction
+    - perf: enable strict mode
+    - perf: remove unnecessary bitwise operator
+  * deps: cookie@0.1.3
+    - perf: deduce the scope of try-catch deopt
+    - perf: remove argument reassignments
+  * deps: escape-html@1.0.2
+  * deps: etag@~1.7.0
+    - Always include entity length in ETags for hash length extensions
+    - Generate non-Stats ETags using MD5 only (no longer CRC32)
+    - Improve stat performance by removing hashing
+    - Improve support for JXcore
+    - Remove base64 padding in ETags to shorten
+    - Support "fake" stats objects in environments without fs
+    - Use MD5 instead of MD4 in weak ETags over 1KB
+  * deps: finalhandler@0.4.0
+    - Fix a false-positive when unpiping in Node.js 0.8
+    - Support `statusCode` property on `Error` objects
+    - Use `unpipe` module for unpiping requests
+    - deps: escape-html@1.0.2
+    - deps: on-finished@~2.3.0
+    - perf: enable strict mode
+    - perf: remove argument reassignment
+  * deps: fresh@0.3.0
+    - Add weak `ETag` matching support
+  * deps: on-finished@~2.3.0
+    - Add defined behavior for HTTP `CONNECT` requests
+    - Add defined behavior for HTTP `Upgrade` requests
+    - deps: ee-first@1.1.1
+  * deps: path-to-regexp@0.1.6
+  * deps: send@0.13.0
+    - Allow Node.js HTTP server to set `Date` response header
+    - Fix incorrectly removing `Content-Location` on 304 response
+    - Improve the default redirect response headers
+    - Send appropriate headers on default error response
+    - Use `http-errors` for standard emitted errors
+    - Use `statuses` instead of `http` module for status messages
+    - deps: escape-html@1.0.2
+    - deps: etag@~1.7.0
+    - deps: fresh@0.3.0
+    - deps: on-finished@~2.3.0
+    - perf: enable strict mode
+    - perf: remove unnecessary array allocations
+  * deps: serve-static@~1.10.0
+    - Add `fallthrough` option
+    - Fix reading options from options prototype
+    - Improve the default redirect response headers
+    - Malformed URLs now `next()` instead of 400
+    - deps: escape-html@1.0.2
+    - deps: send@0.13.0
+    - perf: enable strict mode
+    - perf: remove argument reassignment
+  * deps: type-is@~1.6.3
+    - deps: mime-types@~2.1.1
+    - perf: reduce try block size
+    - perf: remove bitwise operations
+  * perf: enable strict mode
+  * perf: isolate `app.render` try block
+  * perf: remove argument reassignments in application
+  * perf: remove argument reassignments in request prototype
+  * perf: remove argument reassignments in response prototype
+  * perf: remove argument reassignments in routing
+  * perf: remove argument reassignments in `View`
+  * perf: skip attempting to decode zero length string
+  * perf: use saved reference to `http.STATUS_CODES`
+
+4.12.4 / 2015-05-17
+===================
+
+  * deps: accepts@~1.2.7
+    - deps: mime-types@~2.0.11
+    - deps: negotiator@0.5.3
+  * deps: debug@~2.2.0
+    - deps: ms@0.7.1
+  * deps: depd@~1.0.1
+  * deps: etag@~1.6.0
+    - Improve support for JXcore
+    - Support "fake" stats objects in environments without `fs`
+  * deps: finalhandler@0.3.6
+    - deps: debug@~2.2.0
+    - deps: on-finished@~2.2.1
+  * deps: on-finished@~2.2.1
+    - Fix `isFinished(req)` when data buffered
+  * deps: proxy-addr@~1.0.8
+    - deps: ipaddr.js@1.0.1
+  * deps: qs@2.4.2
+   - Fix allowing parameters like `constructor`
+  * deps: send@0.12.3
+    - deps: debug@~2.2.0
+    - deps: depd@~1.0.1
+    - deps: etag@~1.6.0
+    - deps: ms@0.7.1
+    - deps: on-finished@~2.2.1
+  * deps: serve-static@~1.9.3
+    - deps: send@0.12.3
+  * deps: type-is@~1.6.2
+    - deps: mime-types@~2.0.11
+
+4.12.3 / 2015-03-17
+===================
+
+  * deps: accepts@~1.2.5
+    - deps: mime-types@~2.0.10
+  * deps: debug@~2.1.3
+    - Fix high intensity foreground color for bold
+    - deps: ms@0.7.0
+  * deps: finalhandler@0.3.4
+    - deps: debug@~2.1.3
+  * deps: proxy-addr@~1.0.7
+    - deps: ipaddr.js@0.1.9
+  * deps: qs@2.4.1
+    - Fix error when parameter `hasOwnProperty` is present
+  * deps: send@0.12.2
+    - Throw errors early for invalid `extensions` or `index` options
+    - deps: debug@~2.1.3
+  * deps: serve-static@~1.9.2
+    - deps: send@0.12.2
+  * deps: type-is@~1.6.1
+    - deps: mime-types@~2.0.10
+
+4.12.2 / 2015-03-02
+===================
+
+  * Fix regression where `"Request aborted"` is logged using `res.sendFile`
+
+4.12.1 / 2015-03-01
+===================
+
+  * Fix constructing application with non-configurable prototype properties
+  * Fix `ECONNRESET` errors from `res.sendFile` usage
+  * Fix `req.host` when using "trust proxy" hops count
+  * Fix `req.protocol`/`req.secure` when using "trust proxy" hops count
+  * Fix wrong `code` on aborted connections from `res.sendFile`
+  * deps: merge-descriptors@1.0.0
+
+4.12.0 / 2015-02-23
+===================
+
+  * Fix `"trust proxy"` setting to inherit when app is mounted
+  * Generate `ETag`s for all request responses
+    - No longer restricted to only responses for `GET` and `HEAD` requests
+  * Use `content-type` to parse `Content-Type` headers
+  * deps: accepts@~1.2.4
+    - Fix preference sorting to be stable for long acceptable lists
+    - deps: mime-types@~2.0.9
+    - deps: negotiator@0.5.1
+  * deps: cookie-signature@1.0.6
+  * deps: send@0.12.1
+    - Always read the stat size from the file
+    - Fix mutating passed-in `options`
+    - deps: mime@1.3.4
+  * deps: serve-static@~1.9.1
+    - deps: send@0.12.1
+  * deps: type-is@~1.6.0
+    - fix argument reassignment
+    - fix false-positives in `hasBody` `Transfer-Encoding` check
+    - support wildcard for both type and subtype (`*/*`)
+    - deps: mime-types@~2.0.9
+
+4.11.2 / 2015-02-01
+===================
+
+  * Fix `res.redirect` double-calling `res.end` for `HEAD` requests
+  * deps: accepts@~1.2.3
+    - deps: mime-types@~2.0.8
+  * deps: proxy-addr@~1.0.6
+    - deps: ipaddr.js@0.1.8
+  * deps: type-is@~1.5.6
+    - deps: mime-types@~2.0.8
+
+4.11.1 / 2015-01-20
+===================
+
+  * deps: send@0.11.1
+    - Fix root path disclosure
+  * deps: serve-static@~1.8.1
+    - Fix redirect loop in Node.js 0.11.14
+    - Fix root path disclosure
+    - deps: send@0.11.1
+
+4.11.0 / 2015-01-13
+===================
+
+  * Add `res.append(field, val)` to append headers
+  * Deprecate leading `:` in `name` for `app.param(name, fn)`
+  * Deprecate `req.param()` -- use `req.params`, `req.body`, or `req.query` instead
+  * Deprecate `app.param(fn)`
+  * Fix `OPTIONS` responses to include the `HEAD` method properly
+  * Fix `res.sendFile` not always detecting aborted connection
+  * Match routes iteratively to prevent stack overflows
+  * deps: accepts@~1.2.2
+    - deps: mime-types@~2.0.7
+    - deps: negotiator@0.5.0
+  * deps: send@0.11.0
+    - deps: debug@~2.1.1
+    - deps: etag@~1.5.1
+    - deps: ms@0.7.0
+    - deps: on-finished@~2.2.0
+  * deps: serve-static@~1.8.0
+    - deps: send@0.11.0
+
+4.10.8 / 2015-01-13
+===================
+
+  * Fix crash from error within `OPTIONS` response handler
+  * deps: proxy-addr@~1.0.5
+    - deps: ipaddr.js@0.1.6
+
+4.10.7 / 2015-01-04
+===================
+
+  * Fix `Allow` header for `OPTIONS` to not contain duplicate methods
+  * Fix incorrect "Request aborted" for `res.sendFile` when `HEAD` or 304
+  * deps: debug@~2.1.1
+  * deps: finalhandler@0.3.3
+    - deps: debug@~2.1.1
+    - deps: on-finished@~2.2.0
+  * deps: methods@~1.1.1
+  * deps: on-finished@~2.2.0
+  * deps: serve-static@~1.7.2
+    - Fix potential open redirect when mounted at root
+  * deps: type-is@~1.5.5
+    - deps: mime-types@~2.0.7
+
+4.10.6 / 2014-12-12
+===================
+
+  * Fix exception in `req.fresh`/`req.stale` without response headers
+
+4.10.5 / 2014-12-10
+===================
+
+  * Fix `res.send` double-calling `res.end` for `HEAD` requests
+  * deps: accepts@~1.1.4
+    - deps: mime-types@~2.0.4
+  * deps: type-is@~1.5.4
+    - deps: mime-types@~2.0.4
+
+4.10.4 / 2014-11-24
+===================
+
+  * Fix `res.sendfile` logging standard write errors
+
+4.10.3 / 2014-11-23
+===================
+
+  * Fix `res.sendFile` logging standard write errors
+  * deps: etag@~1.5.1
+  * deps: proxy-addr@~1.0.4
+    - deps: ipaddr.js@0.1.5
+  * deps: qs@2.3.3
+    - Fix `arrayLimit` behavior
+
+4.10.2 / 2014-11-09
+===================
+
+  * Correctly invoke async router callback asynchronously
+  * deps: accepts@~1.1.3
+    - deps: mime-types@~2.0.3
+  * deps: type-is@~1.5.3
+    - deps: mime-types@~2.0.3
+
+4.10.1 / 2014-10-28
+===================
+
+  * Fix handling of URLs containing `://` in the path
+  * deps: qs@2.3.2
+    - Fix parsing of mixed objects and values
+
+4.10.0 / 2014-10-23
+===================
+
+  * Add support for `app.set('views', array)`
+    - Views are looked up in sequence in array of directories
+  * Fix `res.send(status)` to mention `res.sendStatus(status)`
+  * Fix handling of invalid empty URLs
+  * Use `content-disposition` module for `res.attachment`/`res.download`
+    - Sends standards-compliant `Content-Disposition` header
+    - Full Unicode support
+  * Use `path.resolve` in view lookup
+  * deps: debug@~2.1.0
+    - Implement `DEBUG_FD` env variable support
+  * deps: depd@~1.0.0
+  * deps: etag@~1.5.0
+    - Improve string performance
+    - Slightly improve speed for weak ETags over 1KB
+  * deps: finalhandler@0.3.2
+    - Terminate in progress response only on error
+    - Use `on-finished` to determine request status
+    - deps: debug@~2.1.0
+    - deps: on-finished@~2.1.1
+  * deps: on-finished@~2.1.1
+    - Fix handling of pipelined requests
+  * deps: qs@2.3.0
+    - Fix parsing of mixed implicit and explicit arrays
+  * deps: send@0.10.1
+    - deps: debug@~2.1.0
+    - deps: depd@~1.0.0
+    - deps: etag@~1.5.0
+    - deps: on-finished@~2.1.1
+  * deps: serve-static@~1.7.1
+    - deps: send@0.10.1
+
+4.9.8 / 2014-10-17
+==================
+
+  * Fix `res.redirect` body when redirect status specified
+  * deps: accepts@~1.1.2
+    - Fix error when media type has invalid parameter
+    - deps: negotiator@0.4.9
+
+4.9.7 / 2014-10-10
+==================
+
+  * Fix using same param name in array of paths
+
+4.9.6 / 2014-10-08
+==================
+
+  * deps: accepts@~1.1.1
+    - deps: mime-types@~2.0.2
+    - deps: negotiator@0.4.8
+  * deps: serve-static@~1.6.4
+    - Fix redirect loop when index file serving disabled
+  * deps: type-is@~1.5.2
+    - deps: mime-types@~2.0.2
+
+4.9.5 / 2014-09-24
+==================
+
+  * deps: etag@~1.4.0
+  * deps: proxy-addr@~1.0.3
+    - Use `forwarded` npm module
+  * deps: send@0.9.3
+    - deps: etag@~1.4.0
+  * deps: serve-static@~1.6.3
+    - deps: send@0.9.3
+
+4.9.4 / 2014-09-19
+==================
+
+  * deps: qs@2.2.4
+    - Fix issue with object keys starting with numbers truncated
+
+4.9.3 / 2014-09-18
+==================
+
+  * deps: proxy-addr@~1.0.2
+    - Fix a global leak when multiple subnets are trusted
+    - deps: ipaddr.js@0.1.3
+
+4.9.2 / 2014-09-17
+==================
+
+  * Fix regression for empty string `path` in `app.use`
+  * Fix `router.use` to accept array of middleware without path
+  * Improve error message for bad `app.use` arguments
+
+4.9.1 / 2014-09-16
+==================
+
+  * Fix `app.use` to accept array of middleware without path
+  * deps: depd@0.4.5
+  * deps: etag@~1.3.1
+  * deps: send@0.9.2
+    - deps: depd@0.4.5
+    - deps: etag@~1.3.1
+    - deps: range-parser@~1.0.2
+  * deps: serve-static@~1.6.2
+    - deps: send@0.9.2
+
+4.9.0 / 2014-09-08
+==================
+
+  * Add `res.sendStatus`
+  * Invoke callback for sendfile when client aborts
+    - Applies to `res.sendFile`, `res.sendfile`, and `res.download`
+    - `err` will be populated with request aborted error
+  * Support IP address host in `req.subdomains`
+  * Use `etag` to generate `ETag` headers
+  * deps: accepts@~1.1.0
+    - update `mime-types`
+  * deps: cookie-signature@1.0.5
+  * deps: debug@~2.0.0
+  * deps: finalhandler@0.2.0
+    - Set `X-Content-Type-Options: nosniff` header
+    - deps: debug@~2.0.0
+  * deps: fresh@0.2.4
+  * deps: media-typer@0.3.0
+    - Throw error when parameter format invalid on parse
+  * deps: qs@2.2.3
+    - Fix issue where first empty value in array is discarded
+  * deps: range-parser@~1.0.2
+  * deps: send@0.9.1
+    - Add `lastModified` option
+    - Use `etag` to generate `ETag` header
+    - deps: debug@~2.0.0
+    - deps: fresh@0.2.4
+  * deps: serve-static@~1.6.1
+    - Add `lastModified` option
+    - deps: send@0.9.1
+  * deps: type-is@~1.5.1
+    - fix `hasbody` to be true for `content-length: 0`
+    - deps: media-typer@0.3.0
+    - deps: mime-types@~2.0.1
+  * deps: vary@~1.0.0
+    - Accept valid `Vary` header string as `field`
+
+4.8.8 / 2014-09-04
+==================
+
+  * deps: send@0.8.5
+    - Fix a path traversal issue when using `root`
+    - Fix malicious path detection for empty string path
+  * deps: serve-static@~1.5.4
+    - deps: send@0.8.5
+
+4.8.7 / 2014-08-29
+==================
+
+  * deps: qs@2.2.2
+    - Remove unnecessary cloning
+
+4.8.6 / 2014-08-27
+==================
+
+  * deps: qs@2.2.0
+    - Array parsing fix
+    - Performance improvements
+
+4.8.5 / 2014-08-18
+==================
+
+  * deps: send@0.8.3
+    - deps: destroy@1.0.3
+    - deps: on-finished@2.1.0
+  * deps: serve-static@~1.5.3
+    - deps: send@0.8.3
+
+4.8.4 / 2014-08-14
+==================
+
+  * deps: qs@1.2.2
+  * deps: send@0.8.2
+    - Work around `fd` leak in Node.js 0.10 for `fs.ReadStream`
+  * deps: serve-static@~1.5.2
+    - deps: send@0.8.2
+
+4.8.3 / 2014-08-10
+==================
+
+  * deps: parseurl@~1.3.0
+  * deps: qs@1.2.1
+  * deps: serve-static@~1.5.1
+    - Fix parsing of weird `req.originalUrl` values
+    - deps: parseurl@~1.3.0
+    - deps: utils-merge@1.0.0
+
+4.8.2 / 2014-08-07
+==================
+
+  * deps: qs@1.2.0
+    - Fix parsing array of objects
+
+4.8.1 / 2014-08-06
+==================
+
+  * fix incorrect deprecation warnings on `res.download`
+  * deps: qs@1.1.0
+    - Accept urlencoded square brackets
+    - Accept empty values in implicit array notation
+
+4.8.0 / 2014-08-05
+==================
+
+  * add `res.sendFile`
+    - accepts a file system path instead of a URL
+    - requires an absolute path or `root` option specified
+  * deprecate `res.sendfile` -- use `res.sendFile` instead
+  * support mounted app as any argument to `app.use()`
+  * deps: qs@1.0.2
+    - Complete rewrite
+    - Limits array length to 20
+    - Limits object depth to 5
+    - Limits parameters to 1,000
+  * deps: send@0.8.1
+    - Add `extensions` option
+  * deps: serve-static@~1.5.0
+    - Add `extensions` option
+    - deps: send@0.8.1
+
+4.7.4 / 2014-08-04
+==================
+
+  * fix `res.sendfile` regression for serving directory index files
+  * deps: send@0.7.4
+    - Fix incorrect 403 on Windows and Node.js 0.11
+    - Fix serving index files without root dir
+  * deps: serve-static@~1.4.4
+    - deps: send@0.7.4
+
+4.7.3 / 2014-08-04
+==================
+
+  * deps: send@0.7.3
+    - Fix incorrect 403 on Windows and Node.js 0.11
+  * deps: serve-static@~1.4.3
+    - Fix incorrect 403 on Windows and Node.js 0.11
+    - deps: send@0.7.3
+
+4.7.2 / 2014-07-27
+==================
+
+  * deps: depd@0.4.4
+    - Work-around v8 generating empty stack traces
+  * deps: send@0.7.2
+    - deps: depd@0.4.4
+  * deps: serve-static@~1.4.2
+
+4.7.1 / 2014-07-26
+==================
+
+  * deps: depd@0.4.3
+    - Fix exception when global `Error.stackTraceLimit` is too low
+  * deps: send@0.7.1
+    - deps: depd@0.4.3
+  * deps: serve-static@~1.4.1
+
+4.7.0 / 2014-07-25
+==================
+
+  * fix `req.protocol` for proxy-direct connections
+  * configurable query parser with `app.set('query parser', parser)`
+    - `app.set('query parser', 'extended')` parse with "qs" module
+    - `app.set('query parser', 'simple')` parse with "querystring" core module
+    - `app.set('query parser', false)` disable query string parsing
+    - `app.set('query parser', true)` enable simple parsing
+  * deprecate `res.json(status, obj)` -- use `res.status(status).json(obj)` instead
+  * deprecate `res.jsonp(status, obj)` -- use `res.status(status).jsonp(obj)` instead
+  * deprecate `res.send(status, body)` -- use `res.status(status).send(body)` instead
+  * deps: debug@1.0.4
+  * deps: depd@0.4.2
+    - Add `TRACE_DEPRECATION` environment variable
+    - Remove non-standard grey color from color output
+    - Support `--no-deprecation` argument
+    - Support `--trace-deprecation` argument
+  * deps: finalhandler@0.1.0
+    - Respond after request fully read
+    - deps: debug@1.0.4
+  * deps: parseurl@~1.2.0
+    - Cache URLs based on original value
+    - Remove no-longer-needed URL mis-parse work-around
+    - Simplify the "fast-path" `RegExp`
+  * deps: send@0.7.0
+    - Add `dotfiles` option
+    - Cap `maxAge` value to 1 year
+    - deps: debug@1.0.4
+    - deps: depd@0.4.2
+  * deps: serve-static@~1.4.0
+    - deps: parseurl@~1.2.0
+    - deps: send@0.7.0
+  * perf: prevent multiple `Buffer` creation in `res.send`
+
+4.6.1 / 2014-07-12
+==================
+
+  * fix `subapp.mountpath` regression for `app.use(subapp)`
+
+4.6.0 / 2014-07-11
+==================
+
+  * accept multiple callbacks to `app.use()`
+  * add explicit "Rosetta Flash JSONP abuse" protection
+    - previous versions are not vulnerable; this is just explicit protection
+  * catch errors in multiple `req.param(name, fn)` handlers
+  * deprecate `res.redirect(url, status)` -- use `res.redirect(status, url)` instead
+  * fix `res.send(status, num)` to send `num` as json (not error)
+  * remove unnecessary escaping when `res.jsonp` returns JSON response
+  * support non-string `path` in `app.use(path, fn)`
+    - supports array of paths
+    - supports `RegExp`
+  * router: fix optimization on router exit
+  * router: refactor location of `try` blocks
+  * router: speed up standard `app.use(fn)`
+  * deps: debug@1.0.3
+    - Add support for multiple wildcards in namespaces
+  * deps: finalhandler@0.0.3
+    - deps: debug@1.0.3
+  * deps: methods@1.1.0
+    - add `CONNECT`
+  * deps: parseurl@~1.1.3
+    - faster parsing of href-only URLs
+  * deps: path-to-regexp@0.1.3
+  * deps: send@0.6.0
+    - deps: debug@1.0.3
+  * deps: serve-static@~1.3.2
+    - deps: parseurl@~1.1.3
+    - deps: send@0.6.0
+  * perf: fix arguments reassign deopt in some `res` methods
+
+4.5.1 / 2014-07-06
+==================
+
+ * fix routing regression when altering `req.method`
+
+4.5.0 / 2014-07-04
+==================
+
+ * add deprecation message to non-plural `req.accepts*`
+ * add deprecation message to `res.send(body, status)`
+ * add deprecation message to `res.vary()`
+ * add `headers` option to `res.sendfile`
+   - use to set headers on successful file transfer
+ * add `mergeParams` option to `Router`
+   - merges `req.params` from parent routes
+ * add `req.hostname` -- correct name for what `req.host` returns
+ * deprecate things with `depd` module
+ * deprecate `req.host` -- use `req.hostname` instead
+ * fix behavior when handling request without routes
+ * fix handling when `route.all` is only route
+ * invoke `router.param()` only when route matches
+ * restore `req.params` after invoking router
+ * use `finalhandler` for final response handling
+ * use `media-typer` to alter content-type charset
+ * deps: accepts@~1.0.7
+ * deps: send@0.5.0
+   - Accept string for `maxage` (converted by `ms`)
+   - Include link in default redirect response
+ * deps: serve-static@~1.3.0
+   - Accept string for `maxAge` (converted by `ms`)
+   - Add `setHeaders` option
+   - Include HTML link in redirect response
+   - deps: send@0.5.0
+ * deps: type-is@~1.3.2
+
+4.4.5 / 2014-06-26
+==================
+
+ * deps: cookie-signature@1.0.4
+   - fix for timing attacks
+
+4.4.4 / 2014-06-20
+==================
+
+ * fix `res.attachment` Unicode filenames in Safari
+ * fix "trim prefix" debug message in `express:router`
+ * deps: accepts@~1.0.5
+ * deps: buffer-crc32@0.2.3
+
+4.4.3 / 2014-06-11
+==================
+
+ * fix persistence of modified `req.params[name]` from `app.param()`
+ * deps: accepts@1.0.3
+   - deps: negotiator@0.4.6
+ * deps: debug@1.0.2
+ * deps: send@0.4.3
+   - Do not throw uncatchable error on file open race condition
+   - Use `escape-html` for HTML escaping
+   - deps: debug@1.0.2
+   - deps: finished@1.2.2
+   - deps: fresh@0.2.2
+ * deps: serve-static@1.2.3
+   - Do not throw uncatchable error on file open race condition
+   - deps: send@0.4.3
+
+4.4.2 / 2014-06-09
+==================
+
+ * fix catching errors from top-level handlers
+ * use `vary` module for `res.vary`
+ * deps: debug@1.0.1
+ * deps: proxy-addr@1.0.1
+ * deps: send@0.4.2
+   - fix "event emitter leak" warnings
+   - deps: debug@1.0.1
+   - deps: finished@1.2.1
+ * deps: serve-static@1.2.2
+   - fix "event emitter leak" warnings
+   - deps: send@0.4.2
+ * deps: type-is@1.2.1
+
+4.4.1 / 2014-06-02
+==================
+
+ * deps: methods@1.0.1
+ * deps: send@0.4.1
+   - Send `max-age` in `Cache-Control` in correct format
+ * deps: serve-static@1.2.1
+   - use `escape-html` for escaping
+   - deps: send@0.4.1
+
+4.4.0 / 2014-05-30
+==================
+
+ * custom etag control with `app.set('etag', val)`
+   - `app.set('etag', function(body, encoding){ return '"etag"' })` custom etag generation
+   - `app.set('etag', 'weak')` weak tag
+   - `app.set('etag', 'strong')` strong etag
+   - `app.set('etag', false)` turn off
+   - `app.set('etag', true)` standard etag
+ * mark `res.send` ETag as weak and reduce collisions
+ * update accepts to 1.0.2
+   - Fix interpretation when header not in request
+ * update send to 0.4.0
+   - Calculate ETag with md5 for reduced collisions
+   - Ignore stream errors after request ends
+   - deps: debug@0.8.1
+ * update serve-static to 1.2.0
+   - Calculate ETag with md5 for reduced collisions
+   - Ignore stream errors after request ends
+   - deps: send@0.4.0
+
+4.3.2 / 2014-05-28
+==================
+
+ * fix handling of errors from `router.param()` callbacks
+
+4.3.1 / 2014-05-23
+==================
+
+ * revert "fix behavior of multiple `app.VERB` for the same path"
+   - this caused a regression in the order of route execution
+
+4.3.0 / 2014-05-21
+==================
+
+ * add `req.baseUrl` to access the path stripped from `req.url` in routes
+ * fix behavior of multiple `app.VERB` for the same path
+ * fix issue routing requests among sub routers
+ * invoke `router.param()` only when necessary instead of every match
+ * proper proxy trust with `app.set('trust proxy', trust)`
+   - `app.set('trust proxy', 1)` trust first hop
+   - `app.set('trust proxy', 'loopback')` trust loopback addresses
+   - `app.set('trust proxy', '10.0.0.1')` trust single IP
+   - `app.set('trust proxy', '10.0.0.1/16')` trust subnet
+   - `app.set('trust proxy', '10.0.0.1, 10.0.0.2')` trust list
+   - `app.set('trust proxy', false)` turn off
+   - `app.set('trust proxy', true)` trust everything
+ * set proper `charset` in `Content-Type` for `res.send`
+ * update type-is to 1.2.0
+   - support suffix matching
+
+4.2.0 / 2014-05-11
+==================
+
+ * deprecate `app.del()` -- use `app.delete()` instead
+ * deprecate `res.json(obj, status)` -- use `res.json(status, obj)` instead
+   - the edge-case `res.json(status, num)` requires `res.status(status).json(num)`
+ * deprecate `res.jsonp(obj, status)` -- use `res.jsonp(status, obj)` instead
+   - the edge-case `res.jsonp(status, num)` requires `res.status(status).jsonp(num)`
+ * fix `req.next` when inside router instance
+ * include `ETag` header in `HEAD` requests
+ * keep previous `Content-Type` for `res.jsonp`
+ * support PURGE method
+   - add `app.purge`
+   - add `router.purge`
+   - include PURGE in `app.all`
+ * update debug to 0.8.0
+   - add `enable()` method
+   - change from stderr to stdout
+ * update methods to 1.0.0
+   - add PURGE
+
+4.1.2 / 2014-05-08
+==================
+
+ * fix `req.host` for IPv6 literals
+ * fix `res.jsonp` error if callback param is object
+
+4.1.1 / 2014-04-27
+==================
+
+ * fix package.json to reflect supported node version
+
+4.1.0 / 2014-04-24
+==================
+
+ * pass options from `res.sendfile` to `send`
+ * preserve casing of headers in `res.header` and `res.set`
+ * support unicode file names in `res.attachment` and `res.download`
+ * update accepts to 1.0.1
+   - deps: negotiator@0.4.0
+ * update cookie to 0.1.2
+   - Fix for maxAge == 0
+   - made compat with expires field
+ * update send to 0.3.0
+   - Accept API options in options object
+   - Coerce option types
+   - Control whether to generate etags
+   - Default directory access to 403 when index disabled
+   - Fix sending files with dots without root set
+   - Include file path in etag
+   - Make "Can't set headers after they are sent." catchable
+   - Send full entity-body for multi range requests
+   - Set etags to "weak"
+   - Support "If-Range" header
+   - Support multiple index paths
+   - deps: mime@1.2.11
+ * update serve-static to 1.1.0
+   - Accept options directly to `send` module
+   - Resolve relative paths at middleware setup
+   - Use parseurl to parse the URL from request
+   - deps: send@0.3.0
+ * update type-is to 1.1.0
+   - add non-array values support
+   - add `multipart` as a shorthand
+
+4.0.0 / 2014-04-09
+==================
+
+ * remove:
+   - node 0.8 support
+   - connect and connect's patches except for charset handling
+   - express(1) - moved to [express-generator](https://github.com/expressjs/generator)
+   - `express.createServer()` - it has been deprecated for a long time. Use `express()`
+   - `app.configure` - use logic in your own app code
+   - `app.router` - is removed
+   - `req.auth` - use `basic-auth` instead
+   - `req.accepted*` - use `req.accepts*()` instead
+   - `res.location` - relative URL resolution is removed
+   - `res.charset` - include the charset in the content type when using `res.set()`
+   - all bundled middleware except `static`
+ * change:
+   - `app.route` -> `app.mountpath` when mounting an express app in another express app
+   - `json spaces` no longer enabled by default in development
+   - `req.accepts*` -> `req.accepts*s` - i.e. `req.acceptsEncoding` -> `req.acceptsEncodings`
+   - `req.params` is now an object instead of an array
+   - `res.locals` is no longer a function. It is a plain js object. Treat it as such.
+   - `res.headerSent` -> `res.headersSent` to match node.js ServerResponse object
+ * refactor:
+   - `req.accepts*` with [accepts](https://github.com/expressjs/accepts)
+   - `req.is` with [type-is](https://github.com/expressjs/type-is)
+   - [path-to-regexp](https://github.com/component/path-to-regexp)
+ * add:
+   - `app.router()` - returns the app Router instance
+   - `app.route()` - Proxy to the app's `Router#route()` method to create a new route
+   - Router & Route - public API
+
+3.21.2 / 2015-07-31
+===================
+
+  * deps: connect@2.30.2
+    - deps: body-parser@~1.13.3
+    - deps: compression@~1.5.2
+    - deps: errorhandler@~1.4.2
+    - deps: method-override@~2.3.5
+    - deps: serve-index@~1.7.2
+    - deps: type-is@~1.6.6
+    - deps: vhost@~3.0.1
+  * deps: vary@~1.0.1
+    - Fix setting empty header from empty `field`
+    - perf: enable strict mode
+    - perf: remove argument reassignments
+
+3.21.1 / 2015-07-05
+===================
+
+  * deps: basic-auth@~1.0.3
+  * deps: connect@2.30.1
+    - deps: body-parser@~1.13.2
+    - deps: compression@~1.5.1
+    - deps: errorhandler@~1.4.1
+    - deps: morgan@~1.6.1
+    - deps: pause@0.1.0
+    - deps: qs@4.0.0
+    - deps: serve-index@~1.7.1
+    - deps: type-is@~1.6.4
+
+3.21.0 / 2015-06-18
+===================
+
+  * deps: basic-auth@1.0.2
+    - perf: enable strict mode
+    - perf: hoist regular expression
+    - perf: parse with regular expressions
+    - perf: remove argument reassignment
+  * deps: connect@2.30.0
+    - deps: body-parser@~1.13.1
+    - deps: bytes@2.1.0
+    - deps: compression@~1.5.0
+    - deps: cookie@0.1.3
+    - deps: cookie-parser@~1.3.5
+    - deps: csurf@~1.8.3
+    - deps: errorhandler@~1.4.0
+    - deps: express-session@~1.11.3
+    - deps: finalhandler@0.4.0
+    - deps: fresh@0.3.0
+    - deps: morgan@~1.6.0
+    - deps: serve-favicon@~2.3.0
+    - deps: serve-index@~1.7.0
+    - deps: serve-static@~1.10.0
+    - deps: type-is@~1.6.3
+  * deps: cookie@0.1.3
+    - perf: deduce the scope of try-catch deopt
+    - perf: remove argument reassignments
+  * deps: escape-html@1.0.2
+  * deps: etag@~1.7.0
+    - Always include entity length in ETags for hash length extensions
+    - Generate non-Stats ETags using MD5 only (no longer CRC32)
+    - Improve stat performance by removing hashing
+    - Improve support for JXcore
+    - Remove base64 padding in ETags to shorten
+    - Support "fake" stats objects in environments without fs
+    - Use MD5 instead of MD4 in weak ETags over 1KB
+  * deps: fresh@0.3.0
+    - Add weak `ETag` matching support
+  * deps: mkdirp@0.5.1
+    - Work in global strict mode
+  * deps: send@0.13.0
+    - Allow Node.js HTTP server to set `Date` response header
+    - Fix incorrectly removing `Content-Location` on 304 response
+    - Improve the default redirect response headers
+    - Send appropriate headers on default error response
+    - Use `http-errors` for standard emitted errors
+    - Use `statuses` instead of `http` module for status messages
+    - deps: escape-html@1.0.2
+    - deps: etag@~1.7.0
+    - deps: fresh@0.3.0
+    - deps: on-finished@~2.3.0
+    - perf: enable strict mode
+    - perf: remove unnecessary array allocations
+
+3.20.3 / 2015-05-17
+===================
+
+  * deps: connect@2.29.2
+    - deps: body-parser@~1.12.4
+    - deps: compression@~1.4.4
+    - deps: connect-timeout@~1.6.2
+    - deps: debug@~2.2.0
+    - deps: depd@~1.0.1
+    - deps: errorhandler@~1.3.6
+    - deps: finalhandler@0.3.6
+    - deps: method-override@~2.3.3
+    - deps: morgan@~1.5.3
+    - deps: qs@2.4.2
+    - deps: response-time@~2.3.1
+    - deps: serve-favicon@~2.2.1
+    - deps: serve-index@~1.6.4
+    - deps: serve-static@~1.9.3
+    - deps: type-is@~1.6.2
+  * deps: debug@~2.2.0
+    - deps: ms@0.7.1
+  * deps: depd@~1.0.1
+  * deps: proxy-addr@~1.0.8
+    - deps: ipaddr.js@1.0.1
+  * deps: send@0.12.3
+    - deps: debug@~2.2.0
+    - deps: depd@~1.0.1
+    - deps: etag@~1.6.0
+    - deps: ms@0.7.1
+    - deps: on-finished@~2.2.1
+
+3.20.2 / 2015-03-16
+===================
+
+  * deps: connect@2.29.1
+    - deps: body-parser@~1.12.2
+    - deps: compression@~1.4.3
+    - deps: connect-timeout@~1.6.1
+    - deps: debug@~2.1.3
+    - deps: errorhandler@~1.3.5
+    - deps: express-session@~1.10.4
+    - deps: finalhandler@0.3.4
+    - deps: method-override@~2.3.2
+    - deps: morgan@~1.5.2
+    - deps: qs@2.4.1
+    - deps: serve-index@~1.6.3
+    - deps: serve-static@~1.9.2
+    - deps: type-is@~1.6.1
+  * deps: debug@~2.1.3
+    - Fix high intensity foreground color for bold
+    - deps: ms@0.7.0
+  * deps: merge-descriptors@1.0.0
+  * deps: proxy-addr@~1.0.7
+    - deps: ipaddr.js@0.1.9
+  * deps: send@0.12.2
+    - Throw errors early for invalid `extensions` or `index` options
+    - deps: debug@~2.1.3
+
+3.20.1 / 2015-02-28
+===================
+
+  * Fix `req.host` when using "trust proxy" hops count
+  * Fix `req.protocol`/`req.secure` when using "trust proxy" hops count
+
+3.20.0 / 2015-02-18
+===================
+
+  * Fix `"trust proxy"` setting to inherit when app is mounted
+  * Generate `ETag`s for all request responses
+    - No longer restricted to only responses for `GET` and `HEAD` requests
+  * Use `content-type` to parse `Content-Type` headers
+  * deps: connect@2.29.0
+    - Use `content-type` to parse `Content-Type` headers
+    - deps: body-parser@~1.12.0
+    - deps: compression@~1.4.1
+    - deps: connect-timeout@~1.6.0
+    - deps: cookie-parser@~1.3.4
+    - deps: cookie-signature@1.0.6
+    - deps: csurf@~1.7.0
+    - deps: errorhandler@~1.3.4
+    - deps: express-session@~1.10.3
+    - deps: http-errors@~1.3.1
+    - deps: response-time@~2.3.0
+    - deps: serve-index@~1.6.2
+    - deps: serve-static@~1.9.1
+    - deps: type-is@~1.6.0
+  * deps: cookie-signature@1.0.6
+  * deps: send@0.12.1
+    - Always read the stat size from the file
+    - Fix mutating passed-in `options`
+    - deps: mime@1.3.4
+
+3.19.2 / 2015-02-01
+===================
+
+  * deps: connect@2.28.3
+    - deps: compression@~1.3.1
+    - deps: csurf@~1.6.6
+    - deps: errorhandler@~1.3.3
+    - deps: express-session@~1.10.2
+    - deps: serve-index@~1.6.1
+    - deps: type-is@~1.5.6
+  * deps: proxy-addr@~1.0.6
+    - deps: ipaddr.js@0.1.8
+
+3.19.1 / 2015-01-20
+===================
+
+  * deps: connect@2.28.2
+    - deps: body-parser@~1.10.2
+    - deps: serve-static@~1.8.1
+  * deps: send@0.11.1
+    - Fix root path disclosure
+
+3.19.0 / 2015-01-09
+===================
+
+  * Fix `OPTIONS` responses to include the `HEAD` method property
+  * Use `readline` for prompt in `express(1)`
+  * deps: commander@2.6.0
+  * deps: connect@2.28.1
+    - deps: body-parser@~1.10.1
+    - deps: compression@~1.3.0
+    - deps: connect-timeout@~1.5.0
+    - deps: csurf@~1.6.4
+    - deps: debug@~2.1.1
+    - deps: errorhandler@~1.3.2
+    - deps: express-session@~1.10.1
+    - deps: finalhandler@0.3.3
+    - deps: method-override@~2.3.1
+    - deps: morgan@~1.5.1
+    - deps: serve-favicon@~2.2.0
+    - deps: serve-index@~1.6.0
+    - deps: serve-static@~1.8.0
+    - deps: type-is@~1.5.5
+  * deps: debug@~2.1.1
+  * deps: methods@~1.1.1
+  * deps: proxy-addr@~1.0.5
+    - deps: ipaddr.js@0.1.6
+  * deps: send@0.11.0
+    - deps: debug@~2.1.1
+    - deps: etag@~1.5.1
+    - deps: ms@0.7.0
+    - deps: on-finished@~2.2.0
+
+3.18.6 / 2014-12-12
+===================
+
+  * Fix exception in `req.fresh`/`req.stale` without response headers
+
+3.18.5 / 2014-12-11
+===================
+
+  * deps: connect@2.27.6
+    - deps: compression@~1.2.2
+    - deps: express-session@~1.9.3
+    - deps: http-errors@~1.2.8
+    - deps: serve-index@~1.5.3
+    - deps: type-is@~1.5.4
+
+3.18.4 / 2014-11-23
+===================
+
+  * deps: connect@2.27.4
+    - deps: body-parser@~1.9.3
+    - deps: compression@~1.2.1
+    - deps: errorhandler@~1.2.3
+    - deps: express-session@~1.9.2
+    - deps: qs@2.3.3
+    - deps: serve-favicon@~2.1.7
+    - deps: serve-static@~1.5.1
+    - deps: type-is@~1.5.3
+  * deps: etag@~1.5.1
+  * deps: proxy-addr@~1.0.4
+    - deps: ipaddr.js@0.1.5
+
+3.18.3 / 2014-11-09
+===================
+
+  * deps: connect@2.27.3
+    - Correctly invoke async callback asynchronously
+    - deps: csurf@~1.6.3
+
+3.18.2 / 2014-10-28
+===================
+
+  * deps: connect@2.27.2
+    - Fix handling of URLs containing `://` in the path
+    - deps: body-parser@~1.9.2
+    - deps: qs@2.3.2
+
+3.18.1 / 2014-10-22
+===================
+
+  * Fix internal `utils.merge` deprecation warnings
+  * deps: connect@2.27.1
+    - deps: body-parser@~1.9.1
+    - deps: express-session@~1.9.1
+    - deps: finalhandler@0.3.2
+    - deps: morgan@~1.4.1
+    - deps: qs@2.3.0
+    - deps: serve-static@~1.7.1
+  * deps: send@0.10.1
+    - deps: on-finished@~2.1.1
+
+3.18.0 / 2014-10-17
+===================
+
+  * Use `content-disposition` module for `res.attachment`/`res.download`
+    - Sends standards-compliant `Content-Disposition` header
+    - Full Unicode support
+  * Use `etag` module to generate `ETag` headers
+  * deps: connect@2.27.0
+    - Use `http-errors` module for creating errors
+    - Use `utils-merge` module for merging objects
+    - deps: body-parser@~1.9.0
+    - deps: compression@~1.2.0
+    - deps: connect-timeout@~1.4.0
+    - deps: debug@~2.1.0
+    - deps: depd@~1.0.0
+    - deps: express-session@~1.9.0
+    - deps: finalhandler@0.3.1
+    - deps: method-override@~2.3.0
+    - deps: morgan@~1.4.0
+    - deps: response-time@~2.2.0
+    - deps: serve-favicon@~2.1.6
+    - deps: serve-index@~1.5.0
+    - deps: serve-static@~1.7.0
+  * deps: debug@~2.1.0
+    - Implement `DEBUG_FD` env variable support
+  * deps: depd@~1.0.0
+  * deps: send@0.10.0
+    - deps: debug@~2.1.0
+    - deps: depd@~1.0.0
+    - deps: etag@~1.5.0
+
+3.17.8 / 2014-10-15
+===================
+
+  * deps: connect@2.26.6
+    - deps: compression@~1.1.2
+    - deps: csurf@~1.6.2
+    - deps: errorhandler@~1.2.2
+
+3.17.7 / 2014-10-08
+===================
+
+  * deps: connect@2.26.5
+    - Fix accepting non-object arguments to `logger`
+    - deps: serve-static@~1.6.4
+
+3.17.6 / 2014-10-02
+===================
+
+  * deps: connect@2.26.4
+    - deps: morgan@~1.3.2
+    - deps: type-is@~1.5.2
+
+3.17.5 / 2014-09-24
+===================
+
+  * deps: connect@2.26.3
+    - deps: body-parser@~1.8.4
+    - deps: serve-favicon@~2.1.5
+    - deps: serve-static@~1.6.3
+  * deps: proxy-addr@~1.0.3
+    - Use `forwarded` npm module
+  * deps: send@0.9.3
+    - deps: etag@~1.4.0
+
+3.17.4 / 2014-09-19
+===================
+
+  * deps: connect@2.26.2
+    - deps: body-parser@~1.8.3
+    - deps: qs@2.2.4
+
+3.17.3 / 2014-09-18
+===================
+
+  * deps: proxy-addr@~1.0.2
+    - Fix a global leak when multiple subnets are trusted
+    - deps: ipaddr.js@0.1.3
+
+3.17.2 / 2014-09-15
+===================
+
+  * Use `crc` instead of `buffer-crc32` for speed
+  * deps: connect@2.26.1
+    - deps: body-parser@~1.8.2
+    - deps: depd@0.4.5
+    - deps: express-session@~1.8.2
+    - deps: morgan@~1.3.1
+    - deps: serve-favicon@~2.1.3
+    - deps: serve-static@~1.6.2
+  * deps: depd@0.4.5
+  * deps: send@0.9.2
+    - deps: depd@0.4.5
+    - deps: etag@~1.3.1
+    - deps: range-parser@~1.0.2
+
+3.17.1 / 2014-09-08
+===================
+
+  * Fix error in `req.subdomains` on empty host
+
+3.17.0 / 2014-09-08
+===================
+
+  * Support `X-Forwarded-Host` in `req.subdomains`
+  * Support IP address host in `req.subdomains`
+  * deps: connect@2.26.0
+    - deps: body-parser@~1.8.1
+    - deps: compression@~1.1.0
+    - deps: connect-timeout@~1.3.0
+    - deps: cookie-parser@~1.3.3
+    - deps: cookie-signature@1.0.5
+    - deps: csurf@~1.6.1
+    - deps: debug@~2.0.0
+    - deps: errorhandler@~1.2.0
+    - deps: express-session@~1.8.1
+    - deps: finalhandler@0.2.0
+    - deps: fresh@0.2.4
+    - deps: media-typer@0.3.0
+    - deps: method-override@~2.2.0
+    - deps: morgan@~1.3.0
+    - deps: qs@2.2.3
+    - deps: serve-favicon@~2.1.3
+    - deps: serve-index@~1.2.1
+    - deps: serve-static@~1.6.1
+    - deps: type-is@~1.5.1
+    - deps: vhost@~3.0.0
+  * deps: cookie-signature@1.0.5
+  * deps: debug@~2.0.0
+  * deps: fresh@0.2.4
+  * deps: media-typer@0.3.0
+    - Throw error when parameter format invalid on parse
+  * deps: range-parser@~1.0.2
+  * deps: send@0.9.1
+    - Add `lastModified` option
+    - Use `etag` to generate `ETag` header
+    - deps: debug@~2.0.0
+    - deps: fresh@0.2.4
+  * deps: vary@~1.0.0
+    - Accept valid `Vary` header string as `field`
+
+3.16.10 / 2014-09-04
+====================
+
+  * deps: connect@2.25.10
+    - deps: serve-static@~1.5.4
+  * deps: send@0.8.5
+    - Fix a path traversal issue when using `root`
+    - Fix malicious path detection for empty string path
+
+3.16.9 / 2014-08-29
+===================
+
+  * deps: connect@2.25.9
+    - deps: body-parser@~1.6.7
+    - deps: qs@2.2.2
+
+3.16.8 / 2014-08-27
+===================
+
+  * deps: connect@2.25.8
+    - deps: body-parser@~1.6.6
+    - deps: csurf@~1.4.1
+    - deps: qs@2.2.0
+
+3.16.7 / 2014-08-18
+===================
+
+  * deps: connect@2.25.7
+    - deps: body-parser@~1.6.5
+    - deps: express-session@~1.7.6
+    - deps: morgan@~1.2.3
+    - deps: serve-static@~1.5.3
+  * deps: send@0.8.3
+    - deps: destroy@1.0.3
+    - deps: on-finished@2.1.0
+
+3.16.6 / 2014-08-14
+===================
+
+  * deps: connect@2.25.6
+    - deps: body-parser@~1.6.4
+    - deps: qs@1.2.2
+    - deps: serve-static@~1.5.2
+  * deps: send@0.8.2
+    - Work around `fd` leak in Node.js 0.10 for `fs.ReadStream`
+
+3.16.5 / 2014-08-11
+===================
+
+  * deps: connect@2.25.5
+    - Fix backwards compatibility in `logger`
+
+3.16.4 / 2014-08-10
+===================
+
+  * Fix original URL parsing in `res.location`
+  * deps: connect@2.25.4
+    - Fix `query` middleware breaking with argument
+    - deps: body-parser@~1.6.3
+    - deps: compression@~1.0.11
+    - deps: connect-timeout@~1.2.2
+    - deps: express-session@~1.7.5
+    - deps: method-override@~2.1.3
+    - deps: on-headers@~1.0.0
+    - deps: parseurl@~1.3.0
+    - deps: qs@1.2.1
+    - deps: response-time@~2.0.1
+    - deps: serve-index@~1.1.6
+    - deps: serve-static@~1.5.1
+  * deps: parseurl@~1.3.0
+
+3.16.3 / 2014-08-07
+===================
+
+  * deps: connect@2.25.3
+    - deps: multiparty@3.3.2
+
+3.16.2 / 2014-08-07
+===================
+
+  * deps: connect@2.25.2
+    - deps: body-parser@~1.6.2
+    - deps: qs@1.2.0
+
+3.16.1 / 2014-08-06
+===================
+
+  * deps: connect@2.25.1
+    - deps: body-parser@~1.6.1
+    - deps: qs@1.1.0
+
+3.16.0 / 2014-08-05
+===================
+
+  * deps: connect@2.25.0
+    - deps: body-parser@~1.6.0
+    - deps: compression@~1.0.10
+    - deps: csurf@~1.4.0
+    - deps: express-session@~1.7.4
+    - deps: qs@1.0.2
+    - deps: serve-static@~1.5.0
+  * deps: send@0.8.1
+    - Add `extensions` option
+
+3.15.3 / 2014-08-04
+===================
+
+  * fix `res.sendfile` regression for serving directory index files
+  * deps: connect@2.24.3
+    - deps: serve-index@~1.1.5
+    - deps: serve-static@~1.4.4
+  * deps: send@0.7.4
+    - Fix incorrect 403 on Windows and Node.js 0.11
+    - Fix serving index files without root dir
+
+3.15.2 / 2014-07-27
+===================
+
+  * deps: connect@2.24.2
+    - deps: body-parser@~1.5.2
+    - deps: depd@0.4.4
+    - deps: express-session@~1.7.2
+    - deps: morgan@~1.2.2
+    - deps: serve-static@~1.4.2
+  * deps: depd@0.4.4
+    - Work-around v8 generating empty stack traces
+  * deps: send@0.7.2
+    - deps: depd@0.4.4
+
+3.15.1 / 2014-07-26
+===================
+
+  * deps: connect@2.24.1
+    - deps: body-parser@~1.5.1
+    - deps: depd@0.4.3
+    - deps: express-session@~1.7.1
+    - deps: morgan@~1.2.1
+    - deps: serve-index@~1.1.4
+    - deps: serve-static@~1.4.1
+  * deps: depd@0.4.3
+    - Fix exception when global `Error.stackTraceLimit` is too low
+  * deps: send@0.7.1
+    - deps: depd@0.4.3
+
+3.15.0 / 2014-07-22
+===================
+
+  * Fix `req.protocol` for proxy-direct connections
+  * Pass options from `res.sendfile` to `send`
+  * deps: connect@2.24.0
+    - deps: body-parser@~1.5.0
+    - deps: compression@~1.0.9
+    - deps: connect-timeout@~1.2.1
+    - deps: debug@1.0.4
+    - deps: depd@0.4.2
+    - deps: express-session@~1.7.0
+    - deps: finalhandler@0.1.0
+    - deps: method-override@~2.1.2
+    - deps: morgan@~1.2.0
+    - deps: multiparty@3.3.1
+    - deps: parseurl@~1.2.0
+    - deps: serve-static@~1.4.0
+  * deps: debug@1.0.4
+  * deps: depd@0.4.2
+    - Add `TRACE_DEPRECATION` environment variable
+    - Remove non-standard grey color from color output
+    - Support `--no-deprecation` argument
+    - Support `--trace-deprecation` argument
+  * deps: parseurl@~1.2.0
+    - Cache URLs based on original value
+    - Remove no-longer-needed URL mis-parse work-around
+    - Simplify the "fast-path" `RegExp`
+  * deps: send@0.7.0
+    - Add `dotfiles` option
+    - Cap `maxAge` value to 1 year
+    - deps: debug@1.0.4
+    - deps: depd@0.4.2
+
+3.14.0 / 2014-07-11
+===================
+
+ * add explicit "Rosetta Flash JSONP abuse" protection
+   - previous versions are not vulnerable; this is just explicit protection
+ * deprecate `res.redirect(url, status)` -- use `res.redirect(status, url)` instead
+ * fix `res.send(status, num)` to send `num` as json (not error)
+ * remove unnecessary escaping when `res.jsonp` returns JSON response
+ * deps: basic-auth@1.0.0
+   - support empty password
+   - support empty username
+ * deps: connect@2.23.0
+   - deps: debug@1.0.3
+   - deps: express-session@~1.6.4
+   - deps: method-override@~2.1.0
+   - deps: parseurl@~1.1.3
+   - deps: serve-static@~1.3.1
+  * deps: debug@1.0.3
+    - Add support for multiple wildcards in namespaces
+  * deps: methods@1.1.0
+    - add `CONNECT`
+  * deps: parseurl@~1.1.3
+    - faster parsing of href-only URLs
+
+3.13.0 / 2014-07-03
+===================
+
+ * add deprecation message to `app.configure`
+ * add deprecation message to `req.auth`
+ * use `basic-auth` to parse `Authorization` header
+ * deps: connect@2.22.0
+   - deps: csurf@~1.3.0
+   - deps: express-session@~1.6.1
+   - deps: multiparty@3.3.0
+   - deps: serve-static@~1.3.0
+ * deps: send@0.5.0
+   - Accept string for `maxage` (converted by `ms`)
+   - Include link in default redirect response
+
+3.12.1 / 2014-06-26
+===================
+
+ * deps: connect@2.21.1
+   - deps: cookie-parser@1.3.2
+   - deps: cookie-signature@1.0.4
+   - deps: express-session@~1.5.2
+   - deps: type-is@~1.3.2
+ * deps: cookie-signature@1.0.4
+   - fix for timing attacks
+
+3.12.0 / 2014-06-21
+===================
+
+ * use `media-typer` to alter content-type charset
+ * deps: connect@2.21.0
+   - deprecate `connect(middleware)` -- use `app.use(middleware)` instead
+   - deprecate `connect.createServer()` -- use `connect()` instead
+   - fix `res.setHeader()` patch to work with get -> append -> set pattern
+   - deps: compression@~1.0.8
+   - deps: errorhandler@~1.1.1
+   - deps: express-session@~1.5.0
+   - deps: serve-index@~1.1.3
+
+3.11.0 / 2014-06-19
+===================
+
+ * deprecate things with `depd` module
+ * deps: buffer-crc32@0.2.3
+ * deps: connect@2.20.2
+   - deprecate `verify` option to `json` -- use `body-parser` npm module instead
+   - deprecate `verify` option to `urlencoded` -- use `body-parser` npm module instead
+   - deprecate things with `depd` module
+   - use `finalhandler` for final response handling
+   - use `media-typer` to parse `content-type` for charset
+   - deps: body-parser@1.4.3
+   - deps: connect-timeout@1.1.1
+   - deps: cookie-parser@1.3.1
+   - deps: csurf@1.2.2
+   - deps: errorhandler@1.1.0
+   - deps: express-session@1.4.0
+   - deps: multiparty@3.2.9
+   - deps: serve-index@1.1.2
+   - deps: type-is@1.3.1
+   - deps: vhost@2.0.0
+
+3.10.5 / 2014-06-11
+===================
+
+ * deps: connect@2.19.6
+   - deps: body-parser@1.3.1
+   - deps: compression@1.0.7
+   - deps: debug@1.0.2
+   - deps: serve-index@1.1.1
+   - deps: serve-static@1.2.3
+ * deps: debug@1.0.2
+ * deps: send@0.4.3
+   - Do not throw uncatchable error on file open race condition
+   - Use `escape-html` for HTML escaping
+   - deps: debug@1.0.2
+   - deps: finished@1.2.2
+   - deps: fresh@0.2.2
+
+3.10.4 / 2014-06-09
+===================
+
+ * deps: connect@2.19.5
+   - fix "event emitter leak" warnings
+   - deps: csurf@1.2.1
+   - deps: debug@1.0.1
+   - deps: serve-static@1.2.2
+   - deps: type-is@1.2.1
+ * deps: debug@1.0.1
+ * deps: send@0.4.2
+   - fix "event emitter leak" warnings
+   - deps: finished@1.2.1
+   - deps: debug@1.0.1
+
+3.10.3 / 2014-06-05
+===================
+
+ * use `vary` module for `res.vary`
+ * deps: connect@2.19.4
+   - deps: errorhandler@1.0.2
+   - deps: method-override@2.0.2
+   - deps: serve-favicon@2.0.1
+ * deps: debug@1.0.0
+
+3.10.2 / 2014-06-03
+===================
+
+ * deps: connect@2.19.3
+   - deps: compression@1.0.6
+
+3.10.1 / 2014-06-03
+===================
+
+ * deps: connect@2.19.2
+   - deps: compression@1.0.4
+ * deps: proxy-addr@1.0.1
+
+3.10.0 / 2014-06-02
+===================
+
+ * deps: connect@2.19.1
+   - deprecate `methodOverride()` -- use `method-override` npm module instead
+   - deps: body-parser@1.3.0
+   - deps: method-override@2.0.1
+   - deps: multiparty@3.2.8
+   - deps: response-time@2.0.0
+   - deps: serve-static@1.2.1
+ * deps: methods@1.0.1
+ * deps: send@0.4.1
+   - Send `max-age` in `Cache-Control` in correct format
+
+3.9.0 / 2014-05-30
+==================
+
+ * custom etag control with `app.set('etag', val)`
+   - `app.set('etag', function(body, encoding){ return '"etag"' })` custom etag generation
+   - `app.set('etag', 'weak')` weak tag
+   - `app.set('etag', 'strong')` strong etag
+   - `app.set('etag', false)` turn off
+   - `app.set('etag', true)` standard etag
+ * Include ETag in HEAD requests
+ * mark `res.send` ETag as weak and reduce collisions
+ * update connect to 2.18.0
+   - deps: compression@1.0.3
+   - deps: serve-index@1.1.0
+   - deps: serve-static@1.2.0
+ * update send to 0.4.0
+   - Calculate ETag with md5 for reduced collisions
+   - Ignore stream errors after request ends
+   - deps: debug@0.8.1
+
+3.8.1 / 2014-05-27
+==================
+
+ * update connect to 2.17.3
+   - deps: body-parser@1.2.2
+   - deps: express-session@1.2.1
+   - deps: method-override@1.0.2
+
+3.8.0 / 2014-05-21
+==================
+
+ * keep previous `Content-Type` for `res.jsonp`
+ * set proper `charset` in `Content-Type` for `res.send`
+ * update connect to 2.17.1
+   - fix `res.charset` appending charset when `content-type` has one
+   - deps: express-session@1.2.0
+   - deps: morgan@1.1.1
+   - deps: serve-index@1.0.3
+
+3.7.0 / 2014-05-18
+==================
+
+ * proper proxy trust with `app.set('trust proxy', trust)`
+   - `app.set('trust proxy', 1)` trust first hop
+   - `app.set('trust proxy', 'loopback')` trust loopback addresses
+   - `app.set('trust proxy', '10.0.0.1')` trust single IP
+   - `app.set('trust proxy', '10.0.0.1/16')` trust subnet
+   - `app.set('trust proxy', '10.0.0.1, 10.0.0.2')` trust list
+   - `app.set('trust proxy', false)` turn off
+   - `app.set('trust proxy', true)` trust everything
+ * update connect to 2.16.2
+   - deprecate `res.headerSent` -- use `res.headersSent`
+   - deprecate `res.on("header")` -- use on-headers module instead
+   - fix edge-case in `res.appendHeader` that would append in wrong order
+   - json: use body-parser
+   - urlencoded: use body-parser
+   - dep: bytes@1.0.0
+   - dep: cookie-parser@1.1.0
+   - dep: csurf@1.2.0
+   - dep: express-session@1.1.0
+   - dep: method-override@1.0.1
+
+3.6.0 / 2014-05-09
+==================
+
+ * deprecate `app.del()` -- use `app.delete()` instead
+ * deprecate `res.json(obj, status)` -- use `res.json(status, obj)` instead
+   - the edge-case `res.json(status, num)` requires `res.status(status).json(num)`
+ * deprecate `res.jsonp(obj, status)` -- use `res.jsonp(status, obj)` instead
+   - the edge-case `res.jsonp(status, num)` requires `res.status(status).jsonp(num)`
+ * support PURGE method
+   - add `app.purge`
+   - add `router.purge`
+   - include PURGE in `app.all`
+ * update connect to 2.15.0
+   * Add `res.appendHeader`
+   * Call error stack even when response has been sent
+   * Patch `res.headerSent` to return Boolean
+   * Patch `res.headersSent` for node.js 0.8
+   * Prevent default 404 handler after response sent
+   * dep: compression@1.0.2
+   * dep: connect-timeout@1.1.0
+   * dep: debug@^0.8.0
+   * dep: errorhandler@1.0.1
+   * dep: express-session@1.0.4
+   * dep: morgan@1.0.1
+   * dep: serve-favicon@2.0.0
+   * dep: serve-index@1.0.2
+ * update debug to 0.8.0
+   * add `enable()` method
+   * change from stderr to stdout
+ * update methods to 1.0.0
+   - add PURGE
+ * update mkdirp to 0.5.0
+
+3.5.3 / 2014-05-08
+==================
+
+ * fix `req.host` for IPv6 literals
+ * fix `res.jsonp` error if callback param is object
+
+3.5.2 / 2014-04-24
+==================
+
+ * update connect to 2.14.5
+ * update cookie to 0.1.2
+ * update mkdirp to 0.4.0
+ * update send to 0.3.0
+
+3.5.1 / 2014-03-25
+==================
+
+ * pin less-middleware in generated app
+
+3.5.0 / 2014-03-06
+==================
+
+ * bump deps
+
+3.4.8 / 2014-01-13
+==================
+
+ * prevent incorrect automatic OPTIONS responses #1868 @dpatti
+ * update binary and examples for jade 1.0 #1876 @yossi, #1877 @reqshark, #1892 @matheusazzi
+ * throw 400 in case of malformed paths @rlidwka
+
+3.4.7 / 2013-12-10
+==================
+
+ * update connect
+
+3.4.6 / 2013-12-01
+==================
+
+ * update connect (raw-body)
+
+3.4.5 / 2013-11-27
+==================
+
+ * update connect
+ * res.location: remove leading ./ #1802 @kapouer
+ * res.redirect: fix `res.redirect('toString') #1829 @michaelficarra
+ * res.send: always send ETag when content-length > 0
+ * router: add Router.all() method
+
+3.4.4 / 2013-10-29
+==================
+
+ * update connect
+ * update supertest
+ * update methods
+ * express(1): replace bodyParser() with urlencoded() and json() #1795 @chirag04
+
+3.4.3 / 2013-10-23
+==================
+
+ * update connect
+
+3.4.2 / 2013-10-18
+==================
+
+ * update connect
+ * downgrade commander
+
+3.4.1 / 2013-10-15
+==================
+
+ * update connect
+ * update commander
+ * jsonp: check if callback is a function
+ * router: wrap encodeURIComponent in a try/catch #1735 (@lxe)
+ * res.format: now includes charset @1747 (@sorribas)
+ * res.links: allow multiple calls @1746 (@sorribas)
+
+3.4.0 / 2013-09-07
+==================
+
+ * add res.vary(). Closes #1682
+ * update connect
+
+3.3.8 / 2013-09-02
+==================
+
+ * update connect
+
+3.3.7 / 2013-08-28
+==================
+
+ * update connect
+
+3.3.6 / 2013-08-27
+==================
+
+ * Revert "remove charset from json responses. Closes #1631" (causes issues in some clients)
+ * add: req.accepts take an argument list
+
+3.3.4 / 2013-07-08
+==================
+
+ * update send and connect
+
+3.3.3 / 2013-07-04
+==================
+
+ * update connect
+
+3.3.2 / 2013-07-03
+==================
+
+ * update connect
+ * update send
+ * remove .version export
+
+3.3.1 / 2013-06-27
+==================
+
+ * update connect
+
+3.3.0 / 2013-06-26
+==================
+
+ * update connect
+ * add support for multiple X-Forwarded-Proto values. Closes #1646
+ * change: remove charset from json responses. Closes #1631
+ * change: return actual booleans from req.accept* functions
+ * fix jsonp callback array throw
+
+3.2.6 / 2013-06-02
+==================
+
+ * update connect
+
+3.2.5 / 2013-05-21
+==================
+
+ * update connect
+ * update node-cookie
+ * add: throw a meaningful error when there is no default engine
+ * change generation of ETags with res.send() to GET requests only. Closes #1619
+
+3.2.4 / 2013-05-09
+==================
+
+  * fix `req.subdomains` when no Host is present
+  * fix `req.host` when no Host is present, return undefined
+
+3.2.3 / 2013-05-07
+==================
+
+  * update connect / qs
+
+3.2.2 / 2013-05-03
+==================
+
+  * update qs
+
+3.2.1 / 2013-04-29
+==================
+
+  * add app.VERB() paths array deprecation warning
+  * update connect
+  * update qs and remove all ~ semver crap
+  * fix: accept number as value of Signed Cookie
+
+3.2.0 / 2013-04-15
+==================
+
+  * add "view" constructor setting to override view behaviour
+  * add req.acceptsEncoding(name)
+  * add req.acceptedEncodings
+  * revert cookie signature change causing session race conditions
+  * fix sorting of Accept values of the same quality
+
+3.1.2 / 2013-04-12
+==================
+
+  * add support for custom Accept parameters
+  * update cookie-signature
+
+3.1.1 / 2013-04-01
+==================
+
+  * add X-Forwarded-Host support to `req.host`
+  * fix relative redirects
+  * update mkdirp
+  * update buffer-crc32
+  * remove legacy app.configure() method from app template.
+
+3.1.0 / 2013-01-25
+==================
+
+  * add support for leading "." in "view engine" setting
+  * add array support to `res.set()`
+  * add node 0.8.x to travis.yml
+  * add "subdomain offset" setting for tweaking `req.subdomains`
+  * add `res.location(url)` implementing `res.redirect()`-like setting of Location
+  * use app.get() for x-powered-by setting for inheritance
+  * fix colons in passwords for `req.auth`
+
+3.0.6 / 2013-01-04
+==================
+
+  * add http verb methods to Router
+  * update connect
+  * fix mangling of the `res.cookie()` options object
+  * fix jsonp whitespace escape. Closes #1132
+
+3.0.5 / 2012-12-19
+==================
+
+  * add throwing when a non-function is passed to a route
+  * fix: explicitly remove Transfer-Encoding header from 204 and 304 responses
+  * revert "add 'etag' option"
+
+3.0.4 / 2012-12-05
+==================
+
+  * add 'etag' option to disable `res.send()` Etags
+  * add escaping of urls in text/plain in `res.redirect()`
+    for old browsers interpreting as html
+  * change crc32 module for a more liberal license
+  * update connect
+
+3.0.3 / 2012-11-13
+==================
+
+  * update connect
+  * update cookie module
+  * fix cookie max-age
+
+3.0.2 / 2012-11-08
+==================
+
+  * add OPTIONS to cors example. Closes #1398
+  * fix route chaining regression. Closes #1397
+
+3.0.1 / 2012-11-01
+==================
+
+  * update connect
+
+3.0.0 / 2012-10-23
+==================
+
+  * add `make clean`
+  * add "Basic" check to req.auth
+  * add `req.auth` test coverage
+  * add cb && cb(payload) to `res.jsonp()`. Closes #1374
+  * add backwards compat for `res.redirect()` status. Closes #1336
+  * add support for `res.json()` to retain previously defined Content-Types. Closes #1349
+  * update connect
+  * change `res.redirect()` to utilize a pathname-relative Location again. Closes #1382
+  * remove non-primitive string support for `res.send()`
+  * fix view-locals example. Closes #1370
+  * fix route-separation example
+
+3.0.0rc5 / 2012-09-18
+==================
+
+  * update connect
+  * add redis search example
+  * add static-files example
+  * add "x-powered-by" setting (`app.disable('x-powered-by')`)
+  * add "application/octet-stream" redirect Accept test case. Closes #1317
+
+3.0.0rc4 / 2012-08-30
+==================
+
+  * add `res.jsonp()`. Closes #1307
+  * add "verbose errors" option to error-pages example
+  * add another route example to express(1) so people are not so confused
+  * add redis online user activity tracking example
+  * update connect dep
+  * fix etag quoting. Closes #1310
+  * fix error-pages 404 status
+  * fix jsonp callback char restrictions
+  * remove old OPTIONS default response
+
+3.0.0rc3 / 2012-08-13
+==================
+
+  * update connect dep
+  * fix signed cookies to work with `connect.cookieParser()` ("s:" prefix was missing) [tnydwrds]
+  * fix `res.render()` clobbering of "locals"
+
+3.0.0rc2 / 2012-08-03
+==================
+
+  * add CORS example
+  * update connect dep
+  * deprecate `.createServer()` & remove old stale examples
+  * fix: escape `res.redirect()` link
+  * fix vhost example
+
+3.0.0rc1 / 2012-07-24
+==================
+
+  * add more examples to view-locals
+  * add scheme-relative redirects (`res.redirect("//foo.com")`) support
+  * update cookie dep
+  * update connect dep
+  * update send dep
+  * fix `express(1)` -h flag, use -H for hogan. Closes #1245
+  * fix `res.sendfile()` socket error handling regression
+
+3.0.0beta7 / 2012-07-16
+==================
+
+  * update connect dep for `send()` root normalization regression
+
+3.0.0beta6 / 2012-07-13
+==================
+
+  * add `err.view` property for view errors. Closes #1226
+  * add "jsonp callback name" setting
+  * add support for "/foo/:bar*" non-greedy matches
+  * change `res.sendfile()` to use `send()` module
+  * change `res.send` to use "response-send" module
+  * remove `app.locals.use` and `res.locals.use`, use regular middleware
+
+3.0.0beta5 / 2012-07-03
+==================
+
+  * add "make check" support
+  * add route-map example
+  * add `res.json(obj, status)` support back for BC
+  * add "methods" dep, remove internal methods module
+  * update connect dep
+  * update auth example to utilize cores pbkdf2
+  * updated tests to use "supertest"
+
+3.0.0beta4 / 2012-06-25
+==================
+
+  * Added `req.auth`
+  * Added `req.range(size)`
+  * Added `res.links(obj)`
+  * Added `res.send(body, status)` support back for backwards compat
+  * Added `.default()` support to `res.format()`
+  * Added 2xx / 304 check to `req.fresh`
+  * Revert "Added + support to the router"
+  * Fixed `res.send()` freshness check, respect res.statusCode
+
+3.0.0beta3 / 2012-06-15
+==================
+
+  * Added hogan `--hjs` to express(1) [nullfirm]
+  * Added another example to content-negotiation
+  * Added `fresh` dep
+  * Changed: `res.send()` always checks freshness
+  * Fixed: expose connects mime module. Closes #1165
+
+3.0.0beta2 / 2012-06-06
+==================
+
+  * Added `+` support to the router
+  * Added `req.host`
+  * Changed `req.param()` to check route first
+  * Update connect dep
+
+3.0.0beta1 / 2012-06-01
+==================
+
+  * Added `res.format()` callback to override default 406 behaviour
+  * Fixed `res.redirect()` 406. Closes #1154
+
+3.0.0alpha5 / 2012-05-30
+==================
+
+  * Added `req.ip`
+  * Added `{ signed: true }` option to `res.cookie()`
+  * Removed `res.signedCookie()`
+  * Changed: dont reverse `req.ips`
+  * Fixed "trust proxy" setting check for `req.ips`
+
+3.0.0alpha4 / 2012-05-09
+==================
+
+  * Added: allow `[]` in jsonp callback. Closes #1128
+  * Added `PORT` env var support in generated template. Closes #1118 [benatkin]
+  * Updated: connect 2.2.2
+
+3.0.0alpha3 / 2012-05-04
+==================
+
+  * Added public `app.routes`. Closes #887
+  * Added _view-locals_ example
+  * Added _mvc_ example
+  * Added `res.locals.use()`. Closes #1120
+  * Added conditional-GET support to `res.send()`
+  * Added: coerce `res.set()` values to strings
+  * Changed: moved `static()` in generated apps below router
+  * Changed: `res.send()` only set ETag when not previously set
+  * Changed connect 2.2.1 dep
+  * Changed: `make test` now runs unit / acceptance tests
+  * Fixed req/res proto inheritance
+
+3.0.0alpha2 / 2012-04-26
+==================
+
+  * Added `make benchmark` back
+  * Added `res.send()` support for `String` objects
+  * Added client-side data exposing example
+  * Added `res.header()` and `req.header()` aliases for BC
+  * Added `express.createServer()` for BC
+  * Perf: memoize parsed urls
+  * Perf: connect 2.2.0 dep
+  * Changed: make `expressInit()` middleware self-aware
+  * Fixed: use app.get() for all core settings
+  * Fixed redis session example
+  * Fixed session example. Closes #1105
+  * Fixed generated express dep. Closes #1078
+
+3.0.0alpha1 / 2012-04-15
+==================
+
+  * Added `app.locals.use(callback)`
+  * Added `app.locals` object
+  * Added `app.locals(obj)`
+  * Added `res.locals` object
+  * Added `res.locals(obj)`
+  * Added `res.format()` for content-negotiation
+  * Added `app.engine()`
+  * Added `res.cookie()` JSON cookie support
+  * Added "trust proxy" setting
+  * Added `req.subdomains`
+  * Added `req.protocol`
+  * Added `req.secure`
+  * Added `req.path`
+  * Added `req.ips`
+  * Added `req.fresh`
+  * Added `req.stale`
+  * Added comma-delimited / array support for `req.accepts()`
+  * Added debug instrumentation
+  * Added `res.set(obj)`
+  * Added `res.set(field, value)`
+  * Added `res.get(field)`
+  * Added `app.get(setting)`. Closes #842
+  * Added `req.acceptsLanguage()`
+  * Added `req.acceptsCharset()`
+  * Added `req.accepted`
+  * Added `req.acceptedLanguages`
+  * Added `req.acceptedCharsets`
+  * Added "json replacer" setting
+  * Added "json spaces" setting
+  * Added X-Forwarded-Proto support to `res.redirect()`. Closes #92
+  * Added `--less` support to express(1)
+  * Added `express.response` prototype
+  * Added `express.request` prototype
+  * Added `express.application` prototype
+  * Added `app.path()`
+  * Added `app.render()`
+  * Added `res.type()` to replace `res.contentType()`
+  * Changed: `res.redirect()` to add relative support
+  * Changed: enable "jsonp callback" by default
+  * Changed: renamed "case sensitive routes" to "case sensitive routing"
+  * Rewrite of all tests with mocha
+  * Removed "root" setting
+  * Removed `res.redirect('home')` support
+  * Removed `req.notify()`
+  * Removed `app.register()`
+  * Removed `app.redirect()`
+  * Removed `app.is()`
+  * Removed `app.helpers()`
+  * Removed `app.dynamicHelpers()`
+  * Fixed `res.sendfile()` with non-GET. Closes #723
+  * Fixed express(1) public dir for windows. Closes #866
+
+2.5.9/ 2012-04-02
+==================
+
+  * Added support for PURGE request method [pbuyle]
+  * Fixed `express(1)` generated app `app.address()` before `listening` [mmalecki]
+
+2.5.8 / 2012-02-08
+==================
+
+  * Update mkdirp dep. Closes #991
+
+2.5.7 / 2012-02-06
+==================
+
+  * Fixed `app.all` duplicate DELETE requests [mscdex]
+
+2.5.6 / 2012-01-13
+==================
+
+  * Updated hamljs dev dep. Closes #953
+
+2.5.5 / 2012-01-08
+==================
+
+  * Fixed: set `filename` on cached templates [matthewleon]
+
+2.5.4 / 2012-01-02
+==================
+
+  * Fixed `express(1)` eol on 0.4.x. Closes #947
+
+2.5.3 / 2011-12-30
+==================
+
+  * Fixed `req.is()` when a charset is present
+
+2.5.2 / 2011-12-10
+==================
+
+  * Fixed: express(1) LF -> CRLF for windows
+
+2.5.1 / 2011-11-17
+==================
+
+  * Changed: updated connect to 1.8.x
+  * Removed sass.js support from express(1)
+
+2.5.0 / 2011-10-24
+==================
+
+  * Added ./routes dir for generated app by default
+  * Added npm install reminder to express(1) app gen
+  * Added 0.5.x support
+  * Removed `make test-cov` since it wont work with node 0.5.x
+  * Fixed express(1) public dir for windows. Closes #866
+
+2.4.7 / 2011-10-05
+==================
+
+  * Added mkdirp to express(1). Closes #795
+  * Added simple _json-config_ example
+  * Added  shorthand for the parsed request's pathname via `req.path`
+  * Changed connect dep to 1.7.x to fix npm issue...
+  * Fixed `res.redirect()` __HEAD__ support. [reported by xerox]
+  * Fixed `req.flash()`, only escape args
+  * Fixed absolute path checking on windows. Closes #829 [reported by andrewpmckenzie]
+
+2.4.6 / 2011-08-22
+==================
+
+  * Fixed multiple param callback regression. Closes #824 [reported by TroyGoode]
+
+2.4.5 / 2011-08-19
+==================
+
+  * Added support for routes to handle errors. Closes #809
+  * Added `app.routes.all()`. Closes #803
+  * Added "basepath" setting to work in conjunction with reverse proxies etc.
+  * Refactored `Route` to use a single array of callbacks
+  * Added support for multiple callbacks for `app.param()`. Closes #801
+Closes #805
+  * Changed: removed .call(self) for route callbacks
+  * Dependency: `qs >= 0.3.1`
+  * Fixed `res.redirect()` on windows due to `join()` usage. Closes #808
+
+2.4.4 / 2011-08-05
+==================
+
+  * Fixed `res.header()` intention of a set, even when `undefined`
+  * Fixed `*`, value no longer required
+  * Fixed `res.send(204)` support. Closes #771
+
+2.4.3 / 2011-07-14
+==================
+
+  * Added docs for `status` option special-case. Closes #739
+  * Fixed `options.filename`, exposing the view path to template engines
+
+2.4.2. / 2011-07-06
+==================
+
+  * Revert "removed jsonp stripping" for XSS
+
+2.4.1 / 2011-07-06
+==================
+
+  * Added `res.json()` JSONP support. Closes #737
+  * Added _extending-templates_ example. Closes #730
+  * Added "strict routing" setting for trailing slashes
+  * Added support for multiple envs in `app.configure()` calls. Closes #735
+  * Changed: `res.send()` using `res.json()`
+  * Changed: when cookie `path === null` don't default it
+  * Changed; default cookie path to "home" setting. Closes #731
+  * Removed _pids/logs_ creation from express(1)
+
+2.4.0 / 2011-06-28
+==================
+
+  * Added chainable `res.status(code)`
+  * Added `res.json()`, an explicit version of `res.send(obj)`
+  * Added simple web-service example
+
+2.3.12 / 2011-06-22
+==================
+
+  * \#express is now on freenode! come join!
+  * Added `req.get(field, param)`
+  * Added links to Japanese documentation, thanks @hideyukisaito!
+  * Added; the `express(1)` generated app outputs the env
+  * Added `content-negotiation` example
+  * Dependency: connect >= 1.5.1 < 2.0.0
+  * Fixed view layout bug. Closes #720
+  * Fixed; ignore body on 304. Closes #701
+
+2.3.11 / 2011-06-04
+==================
+
+  * Added `npm test`
+  * Removed generation of dummy test file from `express(1)`
+  * Fixed; `express(1)` adds express as a dep
+  * Fixed; prune on `prepublish`
+
+2.3.10 / 2011-05-27
+==================
+
+  * Added `req.route`, exposing the current route
+  * Added _package.json_ generation support to `express(1)`
+  * Fixed call to `app.param()` function for optional params. Closes #682
+
+2.3.9 / 2011-05-25
+==================
+
+  * Fixed bug-ish with `../' in `res.partial()` calls
+
+2.3.8 / 2011-05-24
+==================
+
+  * Fixed `app.options()`
+
+2.3.7 / 2011-05-23
+==================
+
+  * Added route `Collection`, ex: `app.get('/user/:id').remove();`
+  * Added support for `app.param(fn)` to define param logic
+  * Removed `app.param()` support for callback with return value
+  * Removed module.parent check from express(1) generated app. Closes #670
+  * Refactored router. Closes #639
+
+2.3.6 / 2011-05-20
+==================
+
+  * Changed; using devDependencies instead of git submodules
+  * Fixed redis session example
+  * Fixed markdown example
+  * Fixed view caching, should not be enabled in development
+
+2.3.5 / 2011-05-20
+==================
+
+  * Added export `.view` as alias for `.View`
+
+2.3.4 / 2011-05-08
+==================
+
+  * Added `./examples/say`
+  * Fixed `res.sendfile()` bug preventing the transfer of files with spaces
+
+2.3.3 / 2011-05-03
+==================
+
+  * Added "case sensitive routes" option.
+  * Changed; split methods supported per rfc [slaskis]
+  * Fixed route-specific middleware when using the same callback function several times
+
+2.3.2 / 2011-04-27
+==================
+
+  * Fixed view hints
+
+2.3.1 / 2011-04-26
+==================
+
+  * Added `app.match()` as `app.match.all()`
+  * Added `app.lookup()` as `app.lookup.all()`
+  * Added `app.remove()` for `app.remove.all()`
+  * Added `app.remove.VERB()`
+  * Fixed template caching collision issue. Closes #644
+  * Moved router over from connect and started refactor
+
+2.3.0 / 2011-04-25
+==================
+
+  * Added options support to `res.clearCookie()`
+  * Added `res.helpers()` as alias of `res.locals()`
+  * Added; json defaults to UTF-8 with `res.send()`. Closes #632. [Daniel   * Dependency `connect >= 1.4.0`
+  * Changed; auto set Content-Type in res.attachement [Aaron Heckmann]
+  * Renamed "cache views" to "view cache". Closes #628
+  * Fixed caching of views when using several apps. Closes #637
+  * Fixed gotcha invoking `app.param()` callbacks once per route middleware.
+Closes #638
+  * Fixed partial lookup precedence. Closes #631
+Shaw]
+
+2.2.2 / 2011-04-12
+==================
+
+  * Added second callback support for `res.download()` connection errors
+  * Fixed `filename` option passing to template engine
+
+2.2.1 / 2011-04-04
+==================
+
+  * Added `layout(path)` helper to change the layout within a view. Closes #610
+  * Fixed `partial()` collection object support.
+    Previously only anything with `.length` would work.
+    When `.length` is present one must still be aware of holes,
+    however now `{ collection: {foo: 'bar'}}` is valid, exposes
+    `keyInCollection` and `keysInCollection`.
+
+  * Performance improved with better view caching
+  * Removed `request` and `response` locals
+  * Changed; errorHandler page title is now `Express` instead of `Connect`
+
+2.2.0 / 2011-03-30
+==================
+
+  * Added `app.lookup.VERB()`, ex `app.lookup.put('/user/:id')`. Closes #606
+  * Added `app.match.VERB()`, ex `app.match.put('/user/12')`. Closes #606
+  * Added `app.VERB(path)` as alias of `app.lookup.VERB()`.
+  * Dependency `connect >= 1.2.0`
+
+2.1.1 / 2011-03-29
+==================
+
+  * Added; expose `err.view` object when failing to locate a view
+  * Fixed `res.partial()` call `next(err)` when no callback is given [reported by aheckmann]
+  * Fixed; `res.send(undefined)` responds with 204 [aheckmann]
+
+2.1.0 / 2011-03-24
+==================
+
+  * Added `<root>/_?<name>` partial lookup support. Closes #447
+  * Added `request`, `response`, and `app` local variables
+  * Added `settings` local variable, containing the app's settings
+  * Added `req.flash()` exception if `req.session` is not available
+  * Added `res.send(bool)` support (json response)
+  * Fixed stylus example for latest version
+  * Fixed; wrap try/catch around `res.render()`
+
+2.0.0 / 2011-03-17
+==================
+
+  * Fixed up index view path alternative.
+  * Changed; `res.locals()` without object returns the locals
+
+2.0.0rc3 / 2011-03-17
+==================
+
+  * Added `res.locals(obj)` to compliment `res.local(key, val)`
+  * Added `res.partial()` callback support
+  * Fixed recursive error reporting issue in `res.render()`
+
+2.0.0rc2 / 2011-03-17
+==================
+
+  * Changed; `partial()` "locals" are now optional
+  * Fixed `SlowBuffer` support. Closes #584 [reported by tyrda01]
+  * Fixed .filename view engine option [reported by drudge]
+  * Fixed blog example
+  * Fixed `{req,res}.app` reference when mounting [Ben Weaver]
+
+2.0.0rc / 2011-03-14
+==================
+
+  * Fixed; expose `HTTPSServer` constructor
+  * Fixed express(1) default test charset. Closes #579 [reported by secoif]
+  * Fixed; default charset to utf-8 instead of utf8 for lame IE [reported by NickP]
+
+2.0.0beta3 / 2011-03-09
+==================
+
+  * Added support for `res.contentType()` literal
+    The original `res.contentType('.json')`,
+    `res.contentType('application/json')`, and `res.contentType('json')`
+    will work now.
+  * Added `res.render()` status option support back
+  * Added charset option for `res.render()`
+  * Added `.charset` support (via connect 1.0.4)
+  * Added view resolution hints when in development and a lookup fails
+  * Added layout lookup support relative to the page view.
+    For example while rendering `./views/user/index.jade` if you create
+    `./views/user/layout.jade` it will be used in favour of the root layout.
+  * Fixed `res.redirect()`. RFC states absolute url [reported by unlink]
+  * Fixed; default `res.send()` string charset to utf8
+  * Removed `Partial` constructor (not currently used)
+
+2.0.0beta2 / 2011-03-07
+==================
+
+  * Added res.render() `.locals` support back to aid in migration process
+  * Fixed flash example
+
+2.0.0beta / 2011-03-03
+==================
+
+  * Added HTTPS support
+  * Added `res.cookie()` maxAge support
+  * Added `req.header()` _Referrer_ / _Referer_ special-case, either works
+  * Added mount support for `res.redirect()`, now respects the mount-point
+  * Added `union()` util, taking place of `merge(clone())` combo
+  * Added stylus support to express(1) generated app
+  * Added secret to session middleware used in examples and generated app
+  * Added `res.local(name, val)` for progressive view locals
+  * Added default param support to `req.param(name, default)`
+  * Added `app.disabled()` and `app.enabled()`
+  * Added `app.register()` support for omitting leading ".", either works
+  * Added `res.partial()`, using the same interface as `partial()` within a view. Closes #539
+  * Added `app.param()` to map route params to async/sync logic
+  * Added; aliased `app.helpers()` as `app.locals()`. Closes #481
+  * Added extname with no leading "." support to `res.contentType()`
+  * Added `cache views` setting, defaulting to enabled in "production" env
+  * Added index file partial resolution, eg: partial('user') may try _views/user/index.jade_.
+  * Added `req.accepts()` support for extensions
+  * Changed; `res.download()` and `res.sendfile()` now utilize Connect's
+    static file server `connect.static.send()`.
+  * Changed; replaced `connect.utils.mime()` with npm _mime_ module
+  * Changed; allow `req.query` to be pre-defined (via middleware or other parent
+  * Changed view partial resolution, now relative to parent view
+  * Changed view engine signature. no longer `engine.render(str, options, callback)`, now `engine.compile(str, options) -> Function`, the returned function accepts `fn(locals)`.
+  * Fixed `req.param()` bug returning Array.prototype methods. Closes #552
+  * Fixed; using `Stream#pipe()` instead of `sys.pump()` in `res.sendfile()`
+  * Fixed; using _qs_ module instead of _querystring_
+  * Fixed; strip unsafe chars from jsonp callbacks
+  * Removed "stream threshold" setting
+
+1.0.8 / 2011-03-01
+==================
+
+  * Allow `req.query` to be pre-defined (via middleware or other parent app)
+  * "connect": ">= 0.5.0 < 1.0.0". Closes #547
+  * Removed the long deprecated __EXPRESS_ENV__ support
+
+1.0.7 / 2011-02-07
+==================
+
+  * Fixed `render()` setting inheritance.
+    Mounted apps would not inherit "view engine"
+
+1.0.6 / 2011-02-07
+==================
+
+  * Fixed `view engine` setting bug when period is in dirname
+
+1.0.5 / 2011-02-05
+==================
+
+  * Added secret to generated app `session()` call
+
+1.0.4 / 2011-02-05
+==================
+
+  * Added `qs` dependency to _package.json_
+  * Fixed namespaced `require()`s for latest connect support
+
+1.0.3 / 2011-01-13
+==================
+
+  * Remove unsafe characters from JSONP callback names [Ryan Grove]
+
+1.0.2 / 2011-01-10
+==================
+
+  * Removed nested require, using `connect.router`
+
+1.0.1 / 2010-12-29
+==================
+
+  * Fixed for middleware stacked via `createServer()`
+    previously the `foo` middleware passed to `createServer(foo)`
+    would not have access to Express methods such as `res.send()`
+    or props like `req.query` etc.
+
+1.0.0 / 2010-11-16
+==================
+
+  * Added; deduce partial object names from the last segment.
+    For example by default `partial('forum/post', postObject)` will
+    give you the _post_ object, providing a meaningful default.
+  * Added http status code string representation to `res.redirect()` body
+  * Added; `res.redirect()` supporting _text/plain_ and _text/html_ via __Accept__.
+  * Added `req.is()` to aid in content negotiation
+  * Added partial local inheritance [suggested by masylum]. Closes #102
+    providing access to parent template locals.
+  * Added _-s, --session[s]_ flag to express(1) to add session related middleware
+  * Added _--template_ flag to express(1) to specify the
+    template engine to use.
+  * Added _--css_ flag to express(1) to specify the
+    stylesheet engine to use (or just plain css by default).
+  * Added `app.all()` support [thanks aheckmann]
+  * Added partial direct object support.
+    You may now `partial('user', user)` providing the "user" local,
+    vs previously `partial('user', { object: user })`.
+  * Added _route-separation_ example since many people question ways
+    to do this with CommonJS modules. Also view the _blog_ example for
+    an alternative.
+  * Performance; caching view path derived partial object names
+  * Fixed partial local inheritance precedence. [reported by Nick Poulden] Closes #454
+  * Fixed jsonp support; _text/javascript_ as per mailinglist discussion
+
+1.0.0rc4 / 2010-10-14
+==================
+
+  * Added _NODE_ENV_ support, _EXPRESS_ENV_ is deprecated and will be removed in 1.0.0
+  * Added route-middleware support (very helpful, see the [docs](http://expressjs.com/guide.html#Route-Middleware))
+  * Added _jsonp callback_ setting to enable/disable jsonp autowrapping [Dav Glass]
+  * Added callback query check on response.send to autowrap JSON objects for simple webservice implementations [Dav Glass]
+  * Added `partial()` support for array-like collections. Closes #434
+  * Added support for swappable querystring parsers
+  * Added session usage docs. Closes #443
+  * Added dynamic helper caching. Closes #439 [suggested by maritz]
+  * Added authentication example
+  * Added basic Range support to `res.sendfile()` (and `res.download()` etc)
+  * Changed; `express(1)` generated app using 2 spaces instead of 4
+  * Default env to "development" again [aheckmann]
+  * Removed _context_ option is no more, use "scope"
+  * Fixed; exposing _./support_ libs to examples so they can run without installs
+  * Fixed mvc example
+
+1.0.0rc3 / 2010-09-20
+==================
+
+  * Added confirmation for `express(1)` app generation. Closes #391
+  * Added extending of flash formatters via `app.flashFormatters`
+  * Added flash formatter support. Closes #411
+  * Added streaming support to `res.sendfile()` using `sys.pump()` when >= "stream threshold"
+  * Added _stream threshold_ setting for `res.sendfile()`
+  * Added `res.send()` __HEAD__ support
+  * Added `res.clearCookie()`
+  * Added `res.cookie()`
+  * Added `res.render()` headers option
+  * Added `res.redirect()` response bodies
+  * Added `res.render()` status option support. Closes #425 [thanks aheckmann]
+  * Fixed `res.sendfile()` responding with 403 on malicious path
+  * Fixed `res.download()` bug; when an error occurs remove _Content-Disposition_
+  * Fixed; mounted apps settings now inherit from parent app [aheckmann]
+  * Fixed; stripping Content-Length / Content-Type when 204
+  * Fixed `res.send()` 204. Closes #419
+  * Fixed multiple _Set-Cookie_ headers via `res.header()`. Closes #402
+  * Fixed bug messing with error handlers when `listenFD()` is called instead of `listen()`. [thanks guillermo]
+
+
+1.0.0rc2 / 2010-08-17
+==================
+
+  * Added `app.register()` for template engine mapping. Closes #390
+  * Added `res.render()` callback support as second argument (no options)
+  * Added callback support to `res.download()`
+  * Added callback support for `res.sendfile()`
+  * Added support for middleware access via `express.middlewareName()` vs `connect.middlewareName()`
+  * Added "partials" setting to docs
+  * Added default expresso tests to `express(1)` generated app. Closes #384
+  * Fixed `res.sendfile()` error handling, defer via `next()`
+  * Fixed `res.render()` callback when a layout is used [thanks guillermo]
+  * Fixed; `make install` creating ~/.node_libraries when not present
+  * Fixed issue preventing error handlers from being defined anywhere. Closes #387
+
+1.0.0rc / 2010-07-28
+==================
+
+  * Added mounted hook. Closes #369
+  * Added connect dependency to _package.json_
+
+  * Removed "reload views" setting and support code
+    development env never caches, production always caches.
+
+  * Removed _param_ in route callbacks, signature is now
+    simply (req, res, next), previously (req, res, params, next).
+    Use _req.params_ for path captures, _req.query_ for GET params.
+
+  * Fixed "home" setting
+  * Fixed middleware/router precedence issue. Closes #366
+  * Fixed; _configure()_ callbacks called immediately. Closes #368
+
+1.0.0beta2 / 2010-07-23
+==================
+
+  * Added more examples
+  * Added; exporting `Server` constructor
+  * Added `Server#helpers()` for view locals
+  * Added `Server#dynamicHelpers()` for dynamic view locals. Closes #349
+  * Added support for absolute view paths
+  * Added; _home_ setting defaults to `Server#route` for mounted apps. Closes #363
+  * Added Guillermo Rauch to the contributor list
+  * Added support for "as" for non-collection partials. Closes #341
+  * Fixed _install.sh_, ensuring _~/.node_libraries_ exists. Closes #362 [thanks jf]
+  * Fixed `res.render()` exceptions, now passed to `next()` when no callback is given [thanks guillermo]
+  * Fixed instanceof `Array` checks, now `Array.isArray()`
+  * Fixed express(1) expansion of public dirs. Closes #348
+  * Fixed middleware precedence. Closes #345
+  * Fixed view watcher, now async [thanks aheckmann]
+
+1.0.0beta / 2010-07-15
+==================
+
+  * Re-write
+    - much faster
+    - much lighter
+    - Check [ExpressJS.com](http://expressjs.com) for migration guide and updated docs
+
+0.14.0 / 2010-06-15
+==================
+
+  * Utilize relative requires
+  * Added Static bufferSize option [aheckmann]
+  * Fixed caching of view and partial subdirectories [aheckmann]
+  * Fixed mime.type() comments now that ".ext" is not supported
+  * Updated haml submodule
+  * Updated class submodule
+  * Removed bin/express
+
+0.13.0 / 2010-06-01
+==================
+
+  * Added node v0.1.97 compatibility
+  * Added support for deleting cookies via Request#cookie('key', null)
+  * Updated haml submodule
+  * Fixed not-found page, now using charset utf-8
+  * Fixed show-exceptions page, now using charset utf-8
+  * Fixed view support due to fs.readFile Buffers
+  * Changed; mime.type() no longer accepts ".type" due to node extname() changes
+
+0.12.0 / 2010-05-22
+==================
+
+  * Added node v0.1.96 compatibility
+  * Added view `helpers` export which act as additional local variables
+  * Updated haml submodule
+  * Changed ETag; removed inode, modified time only
+  * Fixed LF to CRLF for setting multiple cookies
+  * Fixed cookie compilation; values are now urlencoded
+  * Fixed cookies parsing; accepts quoted values and url escaped cookies
+
+0.11.0 / 2010-05-06
+==================
+
+  * Added support for layouts using different engines
+    - this.render('page.html.haml', { layout: 'super-cool-layout.html.ejs' })
+    - this.render('page.html.haml', { layout: 'foo' }) // assumes 'foo.html.haml'
+    - this.render('page.html.haml', { layout: false }) // no layout
+  * Updated ext submodule
+  * Updated haml submodule
+  * Fixed EJS partial support by passing along the context. Issue #307
+
+0.10.1 / 2010-05-03
+==================
+
+  * Fixed binary uploads.
+
+0.10.0 / 2010-04-30
+==================
+
+  * Added charset support via Request#charset (automatically assigned to 'UTF-8' when respond()'s
+    encoding is set to 'utf8' or 'utf-8').
+  * Added "encoding" option to Request#render(). Closes #299
+  * Added "dump exceptions" setting, which is enabled by default.
+  * Added simple ejs template engine support
+  * Added error response support for text/plain, application/json. Closes #297
+  * Added callback function param to Request#error()
+  * Added Request#sendHead()
+  * Added Request#stream()
+  * Added support for Request#respond(304, null) for empty response bodies
+  * Added ETag support to Request#sendfile()
+  * Added options to Request#sendfile(), passed to fs.createReadStream()
+  * Added filename arg to Request#download()
+  * Performance enhanced due to pre-reversing plugins so that plugins.reverse() is not called on each request
+  * Performance enhanced by preventing several calls to toLowerCase() in Router#match()
+  * Changed; Request#sendfile() now streams
+  * Changed; Renamed Request#halt() to Request#respond(). Closes #289
+  * Changed; Using sys.inspect() instead of JSON.encode() for error output
+  * Changed; run() returns the http.Server instance. Closes #298
+  * Changed; Defaulting Server#host to null (INADDR_ANY)
+  * Changed; Logger "common" format scale of 0.4f
+  * Removed Logger "request" format
+  * Fixed; Catching ENOENT in view caching, preventing error when "views/partials" is not found
+  * Fixed several issues with http client
+  * Fixed Logger Content-Length output
+  * Fixed bug preventing Opera from retaining the generated session id. Closes #292
+
+0.9.0 / 2010-04-14
+==================
+
+  * Added DSL level error() route support
+  * Added DSL level notFound() route support
+  * Added Request#error()
+  * Added Request#notFound()
+  * Added Request#render() callback function. Closes #258
+  * Added "max upload size" setting
+  * Added "magic" variables to collection partials (\_\_index\_\_, \_\_length\_\_, \_\_isFirst\_\_, \_\_isLast\_\_). Closes #254
+  * Added [haml.js](http://github.com/visionmedia/haml.js) submodule; removed haml-js
+  * Added callback function support to Request#halt() as 3rd/4th arg
+  * Added preprocessing of route param wildcards using param(). Closes #251
+  * Added view partial support (with collections etc.)
+  * Fixed bug preventing falsey params (such as ?page=0). Closes #286
+  * Fixed setting of multiple cookies. Closes #199
+  * Changed; view naming convention is now NAME.TYPE.ENGINE (for example page.html.haml)
+  * Changed; session cookie is now httpOnly
+  * Changed; Request is no longer global
+  * Changed; Event is no longer global
+  * Changed; "sys" module is no longer global
+  * Changed; moved Request#download to Static plugin where it belongs
+  * Changed; Request instance created before body parsing. Closes #262
+  * Changed; Pre-caching views in memory when "cache view contents" is enabled. Closes #253
+  * Changed; Pre-caching view partials in memory when "cache view partials" is enabled
+  * Updated support to node --version 0.1.90
+  * Updated dependencies
+  * Removed set("session cookie") in favour of use(Session, { cookie: { ... }})
+  * Removed utils.mixin(); use Object#mergeDeep()
+
+0.8.0 / 2010-03-19
+==================
+
+  * Added coffeescript example app. Closes #242
+  * Changed; cache api now async friendly. Closes #240
+  * Removed deprecated 'express/static' support. Use 'express/plugins/static'
+
+0.7.6 / 2010-03-19
+==================
+
+  * Added Request#isXHR. Closes #229
+  * Added `make install` (for the executable)
+  * Added `express` executable for setting up simple app templates
+  * Added "GET /public/*" to Static plugin, defaulting to <root>/public
+  * Added Static plugin
+  * Fixed; Request#render() only calls cache.get() once
+  * Fixed; Namespacing View caches with "view:"
+  * Fixed; Namespacing Static caches with "static:"
+  * Fixed; Both example apps now use the Static plugin
+  * Fixed set("views"). Closes #239
+  * Fixed missing space for combined log format
+  * Deprecated Request#sendfile() and 'express/static'
+  * Removed Server#running
+
+0.7.5 / 2010-03-16
+==================
+
+  * Added Request#flash() support without args, now returns all flashes
+  * Updated ext submodule
+
+0.7.4 / 2010-03-16
+==================
+
+  * Fixed session reaper
+  * Changed; class.js replacing js-oo Class implementation (quite a bit faster, no browser cruft)
+
+0.7.3 / 2010-03-16
+==================
+
+  * Added package.json
+  * Fixed requiring of haml / sass due to kiwi removal
+
+0.7.2 / 2010-03-16
+==================
+
+  * Fixed GIT submodules (HAH!)
+
+0.7.1 / 2010-03-16
+==================
+
+  * Changed; Express now using submodules again until a PM is adopted
+  * Changed; chat example using millisecond conversions from ext
+
+0.7.0 / 2010-03-15
+==================
+
+  * Added Request#pass() support (finds the next matching route, or the given path)
+  * Added Logger plugin (default "common" format replaces CommonLogger)
+  * Removed Profiler plugin
+  * Removed CommonLogger plugin
+
+0.6.0 / 2010-03-11
+==================
+
+  * Added seed.yml for kiwi package management support
+  * Added HTTP client query string support when method is GET. Closes #205
+
+  * Added support for arbitrary view engines.
+    For example "foo.engine.html" will now require('engine'),
+    the exports from this module are cached after the first require().
+
+  * Added async plugin support
+
+  * Removed usage of RESTful route funcs as http client
+    get() etc, use http.get() and friends
+
+  * Removed custom exceptions
+
+0.5.0 / 2010-03-10
+==================
+
+  * Added ext dependency (library of js extensions)
+  * Removed extname() / basename() utils. Use path module
+  * Removed toArray() util. Use arguments.values
+  * Removed escapeRegexp() util. Use RegExp.escape()
+  * Removed process.mixin() dependency. Use utils.mixin()
+  * Removed Collection
+  * Removed ElementCollection
+  * Shameless self promotion of ebook "Advanced JavaScript" (http://dev-mag.com)  ;)
+
+0.4.0 / 2010-02-11
+==================
+
+  * Added flash() example to sample upload app
+  * Added high level restful http client module (express/http)
+  * Changed; RESTful route functions double as HTTP clients. Closes #69
+  * Changed; throwing error when routes are added at runtime
+  * Changed; defaulting render() context to the current Request. Closes #197
+  * Updated haml submodule
+
+0.3.0 / 2010-02-11
+==================
+
+  * Updated haml / sass submodules. Closes #200
+  * Added flash message support. Closes #64
+  * Added accepts() now allows multiple args. fixes #117
+  * Added support for plugins to halt. Closes #189
+  * Added alternate layout support. Closes #119
+  * Removed Route#run(). Closes #188
+  * Fixed broken specs due to use(Cookie) missing
+
+0.2.1 / 2010-02-05
+==================
+
+  * Added "plot" format option for Profiler (for gnuplot processing)
+  * Added request number to Profiler plugin
+  * Fixed binary encoding for multipart file uploads, was previously defaulting to UTF8
+  * Fixed issue with routes not firing when not files are present. Closes #184
+  * Fixed process.Promise -> events.Promise
+
+0.2.0 / 2010-02-03
+==================
+
+  * Added parseParam() support for name[] etc. (allows for file inputs with "multiple" attr) Closes #180
+  * Added Both Cache and Session option "reapInterval" may be "reapEvery". Closes #174
+  * Added expiration support to cache api with reaper. Closes #133
+  * Added cache Store.Memory#reap()
+  * Added Cache; cache api now uses first class Cache instances
+  * Added abstract session Store. Closes #172
+  * Changed; cache Memory.Store#get() utilizing Collection
+  * Renamed MemoryStore -> Store.Memory
+  * Fixed use() of the same plugin several time will always use latest options. Closes #176
+
+0.1.0 / 2010-02-03
+==================
+
+  * Changed; Hooks (before / after) pass request as arg as well as evaluated in their context
+  * Updated node support to 0.1.27 Closes #169
+  * Updated dirname(__filename) -> __dirname
+  * Updated libxmljs support to v0.2.0
+  * Added session support with memory store / reaping
+  * Added quick uid() helper
+  * Added multi-part upload support
+  * Added Sass.js support / submodule
+  * Added production env caching view contents and static files
+  * Added static file caching. Closes #136
+  * Added cache plugin with memory stores
+  * Added support to StaticFile so that it works with non-textual files.
+  * Removed dirname() helper
+  * Removed several globals (now their modules must be required)
+
+0.0.2 / 2010-01-10
+==================
+
+  * Added view benchmarks; currently haml vs ejs
+  * Added Request#attachment() specs. Closes #116
+  * Added use of node's parseQuery() util. Closes #123
+  * Added `make init` for submodules
+  * Updated Haml
+  * Updated sample chat app to show messages on load
+  * Updated libxmljs parseString -> parseHtmlString
+  * Fixed `make init` to work with older versions of git
+  * Fixed specs can now run independent specs for those who can't build deps. Closes #127
+  * Fixed issues introduced by the node url module changes. Closes 126.
+  * Fixed two assertions failing due to Collection#keys() returning strings
+  * Fixed faulty Collection#toArray() spec due to keys() returning strings
+  * Fixed `make test` now builds libxmljs.node before testing
+
+0.0.1 / 2010-01-03
+==================
+
+  * Initial release
diff --git a/backend/node_modules/express/LICENSE b/backend/node_modules/express/LICENSE
new file mode 100644
index 0000000..aa927e4
--- /dev/null
+++ b/backend/node_modules/express/LICENSE
@@ -0,0 +1,24 @@
+(The MIT License)
+
+Copyright (c) 2009-2014 TJ Holowaychuk <tj@vision-media.ca>
+Copyright (c) 2013-2014 Roman Shtylman <shtylman+expressjs@gmail.com>
+Copyright (c) 2014-2015 Douglas Christopher Wilson <doug@somethingdoug.com>
+
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of this software and associated documentation files (the
+'Software'), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sublicense, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to
+the following conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
diff --git a/backend/node_modules/express/Readme.md b/backend/node_modules/express/Readme.md
new file mode 100644
index 0000000..7443b81
--- /dev/null
+++ b/backend/node_modules/express/Readme.md
@@ -0,0 +1,266 @@
+[![Express Logo](https://i.cloudup.com/zfY6lL7eFa-3000x3000.png)](https://expressjs.com/)
+
+**Fast, unopinionated, minimalist web framework for [Node.js](https://nodejs.org).**
+
+**This project has a [Code of Conduct][].**
+
+## Table of contents
+
+* [Installation](#Installation)
+* [Features](#Features)
+* [Docs & Community](#docs--community)
+* [Quick Start](#Quick-Start)
+* [Running Tests](#Running-Tests)
+* [Philosophy](#Philosophy)
+* [Examples](#Examples)
+* [Contributing to Express](#Contributing)
+* [TC (Technical Committee)](#tc-technical-committee)
+* [Triagers](#triagers)
+* [License](#license)
+
+
+[![NPM Version][npm-version-image]][npm-url]
+[![NPM Downloads][npm-downloads-image]][npm-downloads-url]
+[![OpenSSF Scorecard Badge][ossf-scorecard-badge]][ossf-scorecard-visualizer]
+
+
+```js
+import express from 'express'
+
+const app = express()
+
+app.get('/', (req, res) => {
+  res.send('Hello World')
+})
+
+app.listen(3000)
+```
+
+## Installation
+
+This is a [Node.js](https://nodejs.org/en/) module available through the
+[npm registry](https://www.npmjs.com/).
+
+Before installing, [download and install Node.js](https://nodejs.org/en/download/).
+Node.js 18 or higher is required.
+
+If this is a brand new project, make sure to create a `package.json` first with
+the [`npm init` command](https://docs.npmjs.com/creating-a-package-json-file).
+
+Installation is done using the
+[`npm install` command](https://docs.npmjs.com/getting-started/installing-npm-packages-locally):
+
+```bash
+npm install express
+```
+
+Follow [our installing guide](https://expressjs.com/en/starter/installing.html)
+for more information.
+
+## Features
+
+  * Robust routing
+  * Focus on high performance
+  * Super-high test coverage
+  * HTTP helpers (redirection, caching, etc)
+  * View system supporting 14+ template engines
+  * Content negotiation
+  * Executable for generating applications quickly
+
+## Docs & Community
+
+  * [Website and Documentation](https://expressjs.com/) - [[website repo](https://github.com/expressjs/expressjs.com)]
+  * [GitHub Organization](https://github.com/expressjs) for Official Middleware & Modules
+  * [Github Discussions](https://github.com/expressjs/discussions) for discussion on the development and usage of Express
+
+**PROTIP** Be sure to read the [migration guide to v5](https://expressjs.com/en/guide/migrating-5)
+
+## Quick Start
+
+  The quickest way to get started with express is to utilize the executable [`express(1)`](https://github.com/expressjs/generator) to generate an application as shown below:
+
+  Install the executable. The executable's major version will match Express's:
+
+```bash
+npm install -g express-generator@4
+```
+
+  Create the app:
+
+```bash
+express /tmp/foo && cd /tmp/foo
+```
+
+  Install dependencies:
+
+```bash
+npm install
+```
+
+  Start the server:
+
+```bash
+npm start
+```
+
+  View the website at: http://localhost:3000
+
+## Philosophy
+
+  The Express philosophy is to provide small, robust tooling for HTTP servers, making
+  it a great solution for single page applications, websites, hybrids, or public
+  HTTP APIs.
+
+  Express does not force you to use any specific ORM or template engine. With support for over
+  14 template engines via [@ladjs/consolidate](https://github.com/ladjs/consolidate),
+  you can quickly craft your perfect framework.
+
+## Examples
+
+  To view the examples, clone the Express repository:
+
+```bash
+git clone https://github.com/expressjs/express.git --depth 1 && cd express
+```
+
+  Then install the dependencies:
+
+```bash
+npm install
+```
+
+  Then run whichever example you want:
+
+```bash
+node examples/content-negotiation
+```
+
+## Contributing
+
+  [![Linux Build][github-actions-ci-image]][github-actions-ci-url]
+  [![Test Coverage][coveralls-image]][coveralls-url]
+
+The Express.js project welcomes all constructive contributions. Contributions take many forms,
+from code for bug fixes and enhancements, to additions and fixes to documentation, additional
+tests, triaging incoming pull requests and issues, and more!
+
+See the [Contributing Guide](Contributing.md) for more technical details on contributing.
+
+### Security Issues
+
+If you discover a security vulnerability in Express, please see [Security Policies and Procedures](Security.md).
+
+### Running Tests
+
+To run the test suite, first install the dependencies:
+
+```bash
+npm install
+```
+
+Then run `npm test`:
+
+```bash
+npm test
+```
+
+## People
+
+The original author of Express is [TJ Holowaychuk](https://github.com/tj)
+
+[List of all contributors](https://github.com/expressjs/express/graphs/contributors)
+
+### TC (Technical Committee)
+
+* [UlisesGascon](https://github.com/UlisesGascon) - **Ulises Gascón** (he/him)
+* [jonchurch](https://github.com/jonchurch) - **Jon Church**
+* [wesleytodd](https://github.com/wesleytodd) - **Wes Todd**
+* [LinusU](https://github.com/LinusU) - **Linus Unnebäck**
+* [blakeembrey](https://github.com/blakeembrey) - **Blake Embrey**
+* [sheplu](https://github.com/sheplu) - **Jean Burellier**
+* [crandmck](https://github.com/crandmck) - **Rand McKinney**
+* [ctcpip](https://github.com/ctcpip) - **Chris de Almeida**
+
+<details>
+<summary>TC emeriti members</summary>
+
+#### TC emeriti members
+
+  * [dougwilson](https://github.com/dougwilson) - **Douglas Wilson**
+  * [hacksparrow](https://github.com/hacksparrow) - **Hage Yaapa**
+  * [jonathanong](https://github.com/jonathanong) - **jongleberry**
+  * [niftylettuce](https://github.com/niftylettuce) - **niftylettuce**
+  * [troygoode](https://github.com/troygoode) - **Troy Goode**
+</details>
+
+
+### Triagers
+
+* [aravindvnair99](https://github.com/aravindvnair99) - **Aravind Nair**
+* [bjohansebas](https://github.com/bjohansebas) - **Sebastian Beltran**
+* [carpasse](https://github.com/carpasse) - **Carlos Serrano**
+* [CBID2](https://github.com/CBID2) - **Christine Belzie**
+* [dpopp07](https://github.com/dpopp07) - **Dustin Popp**
+* [UlisesGascon](https://github.com/UlisesGascon) - **Ulises Gascón** (he/him)
+* [3imed-jaberi](https://github.com/3imed-jaberi) - **Imed Jaberi**
+* [IamLizu](https://github.com/IamLizu) - **S M Mahmudul Hasan** (he/him)
+* [Phillip9587](https://github.com/Phillip9587) - **Phillip Barta**
+* [Sushmeet](https://github.com/Sushmeet) - **Sushmeet Sunger**
+* [rxmarbles](https://github.com/rxmarbles) **Rick Markins** (He/him)
+
+<details>
+<summary>Triagers emeriti members</summary>
+
+#### Emeritus Triagers
+
+  * [AuggieH](https://github.com/AuggieH) - **Auggie Hudak**
+  * [G-Rath](https://github.com/G-Rath) - **Gareth Jones**
+  * [MohammadXroid](https://github.com/MohammadXroid) - **Mohammad Ayashi**
+  * [NawafSwe](https://github.com/NawafSwe) - **Nawaf Alsharqi**
+  * [NotMoni](https://github.com/NotMoni) - **Moni**
+  * [VigneshMurugan](https://github.com/VigneshMurugan) - **Vignesh Murugan**
+  * [davidmashe](https://github.com/davidmashe) - **David Ashe**
+  * [digitaIfabric](https://github.com/digitaIfabric) - **David**
+  * [e-l-i-s-e](https://github.com/e-l-i-s-e) - **Elise Bonner**
+  * [fed135](https://github.com/fed135) - **Frederic Charette**
+  * [firmanJS](https://github.com/firmanJS) - **Firman Abdul Hakim**
+  * [getspooky](https://github.com/getspooky) - **Yasser Ameur**
+  * [ghinks](https://github.com/ghinks) - **Glenn**
+  * [ghousemohamed](https://github.com/ghousemohamed) - **Ghouse Mohamed**
+  * [gireeshpunathil](https://github.com/gireeshpunathil) - **Gireesh Punathil**
+  * [jake32321](https://github.com/jake32321) - **Jake Reed**
+  * [jonchurch](https://github.com/jonchurch) - **Jon Church**
+  * [lekanikotun](https://github.com/lekanikotun) - **Troy Goode**
+  * [marsonya](https://github.com/marsonya) - **Lekan Ikotun**
+  * [mastermatt](https://github.com/mastermatt) - **Matt R. Wilson**
+  * [maxakuru](https://github.com/maxakuru) - **Max Edell**
+  * [mlrawlings](https://github.com/mlrawlings) - **Michael Rawlings**
+  * [rodion-arr](https://github.com/rodion-arr) - **Rodion Abdurakhimov**
+  * [sheplu](https://github.com/sheplu) - **Jean Burellier**
+  * [tarunyadav1](https://github.com/tarunyadav1) - **Tarun yadav**
+  * [tunniclm](https://github.com/tunniclm) - **Mike Tunnicliffe**
+  * [enyoghasim](https://github.com/enyoghasim) - **David Enyoghasim**
+  * [0ss](https://github.com/0ss) - **Salah**
+  * [import-brain](https://github.com/import-brain) - **Eric Cheng** (he/him)
+  * [dakshkhetan](https://github.com/dakshkhetan) - **Daksh Khetan** (he/him)
+  * [lucasraziel](https://github.com/lucasraziel) - **Lucas Soares Do Rego**
+  * [mertcanaltin](https://github.com/mertcanaltin) - **Mert Can Altin**
+  
+</details>
+
+
+## License
+
+  [MIT](LICENSE)
+
+[coveralls-image]: https://badgen.net/coveralls/c/github/expressjs/express/master
+[coveralls-url]: https://coveralls.io/r/expressjs/express?branch=master
+[github-actions-ci-image]: https://badgen.net/github/checks/expressjs/express/master?label=CI
+[github-actions-ci-url]: https://github.com/expressjs/express/actions/workflows/ci.yml
+[npm-downloads-image]: https://badgen.net/npm/dm/express
+[npm-downloads-url]: https://npmcharts.com/compare/express?minimal=true
+[npm-url]: https://npmjs.org/package/express
+[npm-version-image]: https://badgen.net/npm/v/express
+[ossf-scorecard-badge]: https://api.scorecard.dev/projects/github.com/expressjs/express/badge
+[ossf-scorecard-visualizer]: https://ossf.github.io/scorecard-visualizer/#/projects/github.com/expressjs/express
+[Code of Conduct]: https://github.com/expressjs/express/blob/master/Code-Of-Conduct.md
diff --git a/backend/node_modules/express/index.js b/backend/node_modules/express/index.js
new file mode 100644
index 0000000..d219b0c
--- /dev/null
+++ b/backend/node_modules/express/index.js
@@ -0,0 +1,11 @@
+/*!
+ * express
+ * Copyright(c) 2009-2013 TJ Holowaychuk
+ * Copyright(c) 2013 Roman Shtylman
+ * Copyright(c) 2014-2015 Douglas Christopher Wilson
+ * MIT Licensed
+ */
+
+'use strict';
+
+module.exports = require('./lib/express');
diff --git a/backend/node_modules/express/lib/application.js b/backend/node_modules/express/lib/application.js
new file mode 100644
index 0000000..cf6d78c
--- /dev/null
+++ b/backend/node_modules/express/lib/application.js
@@ -0,0 +1,631 @@
+/*!
+ * express
+ * Copyright(c) 2009-2013 TJ Holowaychuk
+ * Copyright(c) 2013 Roman Shtylman
+ * Copyright(c) 2014-2015 Douglas Christopher Wilson
+ * MIT Licensed
+ */
+
+'use strict';
+
+/**
+ * Module dependencies.
+ * @private
+ */
+
+var finalhandler = require('finalhandler');
+var debug = require('debug')('express:application');
+var View = require('./view');
+var http = require('node:http');
+var methods = require('./utils').methods;
+var compileETag = require('./utils').compileETag;
+var compileQueryParser = require('./utils').compileQueryParser;
+var compileTrust = require('./utils').compileTrust;
+var resolve = require('node:path').resolve;
+var once = require('once')
+var Router = require('router');
+
+/**
+ * Module variables.
+ * @private
+ */
+
+var slice = Array.prototype.slice;
+var flatten = Array.prototype.flat;
+
+/**
+ * Application prototype.
+ */
+
+var app = exports = module.exports = {};
+
+/**
+ * Variable for trust proxy inheritance back-compat
+ * @private
+ */
+
+var trustProxyDefaultSymbol = '@@symbol:trust_proxy_default';
+
+/**
+ * Initialize the server.
+ *
+ *   - setup default configuration
+ *   - setup default middleware
+ *   - setup route reflection methods
+ *
+ * @private
+ */
+
+app.init = function init() {
+  var router = null;
+
+  this.cache = Object.create(null);
+  this.engines = Object.create(null);
+  this.settings = Object.create(null);
+
+  this.defaultConfiguration();
+
+  // Setup getting to lazily add base router
+  Object.defineProperty(this, 'router', {
+    configurable: true,
+    enumerable: true,
+    get: function getrouter() {
+      if (router === null) {
+        router = new Router({
+          caseSensitive: this.enabled('case sensitive routing'),
+          strict: this.enabled('strict routing')
+        });
+      }
+
+      return router;
+    }
+  });
+};
+
+/**
+ * Initialize application configuration.
+ * @private
+ */
+
+app.defaultConfiguration = function defaultConfiguration() {
+  var env = process.env.NODE_ENV || 'development';
+
+  // default settings
+  this.enable('x-powered-by');
+  this.set('etag', 'weak');
+  this.set('env', env);
+  this.set('query parser', 'simple')
+  this.set('subdomain offset', 2);
+  this.set('trust proxy', false);
+
+  // trust proxy inherit back-compat
+  Object.defineProperty(this.settings, trustProxyDefaultSymbol, {
+    configurable: true,
+    value: true
+  });
+
+  debug('booting in %s mode', env);
+
+  this.on('mount', function onmount(parent) {
+    // inherit trust proxy
+    if (this.settings[trustProxyDefaultSymbol] === true
+      && typeof parent.settings['trust proxy fn'] === 'function') {
+      delete this.settings['trust proxy'];
+      delete this.settings['trust proxy fn'];
+    }
+
+    // inherit protos
+    Object.setPrototypeOf(this.request, parent.request)
+    Object.setPrototypeOf(this.response, parent.response)
+    Object.setPrototypeOf(this.engines, parent.engines)
+    Object.setPrototypeOf(this.settings, parent.settings)
+  });
+
+  // setup locals
+  this.locals = Object.create(null);
+
+  // top-most app is mounted at /
+  this.mountpath = '/';
+
+  // default locals
+  this.locals.settings = this.settings;
+
+  // default configuration
+  this.set('view', View);
+  this.set('views', resolve('views'));
+  this.set('jsonp callback name', 'callback');
+
+  if (env === 'production') {
+    this.enable('view cache');
+  }
+};
+
+/**
+ * Dispatch a req, res pair into the application. Starts pipeline processing.
+ *
+ * If no callback is provided, then default error handlers will respond
+ * in the event of an error bubbling through the stack.
+ *
+ * @private
+ */
+
+app.handle = function handle(req, res, callback) {
+  // final handler
+  var done = callback || finalhandler(req, res, {
+    env: this.get('env'),
+    onerror: logerror.bind(this)
+  });
+
+  // set powered by header
+  if (this.enabled('x-powered-by')) {
+    res.setHeader('X-Powered-By', 'Express');
+  }
+
+  // set circular references
+  req.res = res;
+  res.req = req;
+
+  // alter the prototypes
+  Object.setPrototypeOf(req, this.request)
+  Object.setPrototypeOf(res, this.response)
+
+  // setup locals
+  if (!res.locals) {
+    res.locals = Object.create(null);
+  }
+
+  this.router.handle(req, res, done);
+};
+
+/**
+ * Proxy `Router#use()` to add middleware to the app router.
+ * See Router#use() documentation for details.
+ *
+ * If the _fn_ parameter is an express app, then it will be
+ * mounted at the _route_ specified.
+ *
+ * @public
+ */
+
+app.use = function use(fn) {
+  var offset = 0;
+  var path = '/';
+
+  // default path to '/'
+  // disambiguate app.use([fn])
+  if (typeof fn !== 'function') {
+    var arg = fn;
+
+    while (Array.isArray(arg) && arg.length !== 0) {
+      arg = arg[0];
+    }
+
+    // first arg is the path
+    if (typeof arg !== 'function') {
+      offset = 1;
+      path = fn;
+    }
+  }
+
+  var fns = flatten.call(slice.call(arguments, offset), Infinity);
+
+  if (fns.length === 0) {
+    throw new TypeError('app.use() requires a middleware function')
+  }
+
+  // get router
+  var router = this.router;
+
+  fns.forEach(function (fn) {
+    // non-express app
+    if (!fn || !fn.handle || !fn.set) {
+      return router.use(path, fn);
+    }
+
+    debug('.use app under %s', path);
+    fn.mountpath = path;
+    fn.parent = this;
+
+    // restore .app property on req and res
+    router.use(path, function mounted_app(req, res, next) {
+      var orig = req.app;
+      fn.handle(req, res, function (err) {
+        Object.setPrototypeOf(req, orig.request)
+        Object.setPrototypeOf(res, orig.response)
+        next(err);
+      });
+    });
+
+    // mounted an app
+    fn.emit('mount', this);
+  }, this);
+
+  return this;
+};
+
+/**
+ * Proxy to the app `Router#route()`
+ * Returns a new `Route` instance for the _path_.
+ *
+ * Routes are isolated middleware stacks for specific paths.
+ * See the Route api docs for details.
+ *
+ * @public
+ */
+
+app.route = function route(path) {
+  return this.router.route(path);
+};
+
+/**
+ * Register the given template engine callback `fn`
+ * as `ext`.
+ *
+ * By default will `require()` the engine based on the
+ * file extension. For example if you try to render
+ * a "foo.ejs" file Express will invoke the following internally:
+ *
+ *     app.engine('ejs', require('ejs').__express);
+ *
+ * For engines that do not provide `.__express` out of the box,
+ * or if you wish to "map" a different extension to the template engine
+ * you may use this method. For example mapping the EJS template engine to
+ * ".html" files:
+ *
+ *     app.engine('html', require('ejs').renderFile);
+ *
+ * In this case EJS provides a `.renderFile()` method with
+ * the same signature that Express expects: `(path, options, callback)`,
+ * though note that it aliases this method as `ejs.__express` internally
+ * so if you're using ".ejs" extensions you don't need to do anything.
+ *
+ * Some template engines do not follow this convention, the
+ * [Consolidate.js](https://github.com/tj/consolidate.js)
+ * library was created to map all of node's popular template
+ * engines to follow this convention, thus allowing them to
+ * work seamlessly within Express.
+ *
+ * @param {String} ext
+ * @param {Function} fn
+ * @return {app} for chaining
+ * @public
+ */
+
+app.engine = function engine(ext, fn) {
+  if (typeof fn !== 'function') {
+    throw new Error('callback function required');
+  }
+
+  // get file extension
+  var extension = ext[0] !== '.'
+    ? '.' + ext
+    : ext;
+
+  // store engine
+  this.engines[extension] = fn;
+
+  return this;
+};
+
+/**
+ * Proxy to `Router#param()` with one added api feature. The _name_ parameter
+ * can be an array of names.
+ *
+ * See the Router#param() docs for more details.
+ *
+ * @param {String|Array} name
+ * @param {Function} fn
+ * @return {app} for chaining
+ * @public
+ */
+
+app.param = function param(name, fn) {
+  if (Array.isArray(name)) {
+    for (var i = 0; i < name.length; i++) {
+      this.param(name[i], fn);
+    }
+
+    return this;
+  }
+
+  this.router.param(name, fn);
+
+  return this;
+};
+
+/**
+ * Assign `setting` to `val`, or return `setting`'s value.
+ *
+ *    app.set('foo', 'bar');
+ *    app.set('foo');
+ *    // => "bar"
+ *
+ * Mounted servers inherit their parent server's settings.
+ *
+ * @param {String} setting
+ * @param {*} [val]
+ * @return {Server} for chaining
+ * @public
+ */
+
+app.set = function set(setting, val) {
+  if (arguments.length === 1) {
+    // app.get(setting)
+    return this.settings[setting];
+  }
+
+  debug('set "%s" to %o', setting, val);
+
+  // set value
+  this.settings[setting] = val;
+
+  // trigger matched settings
+  switch (setting) {
+    case 'etag':
+      this.set('etag fn', compileETag(val));
+      break;
+    case 'query parser':
+      this.set('query parser fn', compileQueryParser(val));
+      break;
+    case 'trust proxy':
+      this.set('trust proxy fn', compileTrust(val));
+
+      // trust proxy inherit back-compat
+      Object.defineProperty(this.settings, trustProxyDefaultSymbol, {
+        configurable: true,
+        value: false
+      });
+
+      break;
+  }
+
+  return this;
+};
+
+/**
+ * Return the app's absolute pathname
+ * based on the parent(s) that have
+ * mounted it.
+ *
+ * For example if the application was
+ * mounted as "/admin", which itself
+ * was mounted as "/blog" then the
+ * return value would be "/blog/admin".
+ *
+ * @return {String}
+ * @private
+ */
+
+app.path = function path() {
+  return this.parent
+    ? this.parent.path() + this.mountpath
+    : '';
+};
+
+/**
+ * Check if `setting` is enabled (truthy).
+ *
+ *    app.enabled('foo')
+ *    // => false
+ *
+ *    app.enable('foo')
+ *    app.enabled('foo')
+ *    // => true
+ *
+ * @param {String} setting
+ * @return {Boolean}
+ * @public
+ */
+
+app.enabled = function enabled(setting) {
+  return Boolean(this.set(setting));
+};
+
+/**
+ * Check if `setting` is disabled.
+ *
+ *    app.disabled('foo')
+ *    // => true
+ *
+ *    app.enable('foo')
+ *    app.disabled('foo')
+ *    // => false
+ *
+ * @param {String} setting
+ * @return {Boolean}
+ * @public
+ */
+
+app.disabled = function disabled(setting) {
+  return !this.set(setting);
+};
+
+/**
+ * Enable `setting`.
+ *
+ * @param {String} setting
+ * @return {app} for chaining
+ * @public
+ */
+
+app.enable = function enable(setting) {
+  return this.set(setting, true);
+};
+
+/**
+ * Disable `setting`.
+ *
+ * @param {String} setting
+ * @return {app} for chaining
+ * @public
+ */
+
+app.disable = function disable(setting) {
+  return this.set(setting, false);
+};
+
+/**
+ * Delegate `.VERB(...)` calls to `router.VERB(...)`.
+ */
+
+methods.forEach(function (method) {
+  app[method] = function (path) {
+    if (method === 'get' && arguments.length === 1) {
+      // app.get(setting)
+      return this.set(path);
+    }
+
+    var route = this.route(path);
+    route[method].apply(route, slice.call(arguments, 1));
+    return this;
+  };
+});
+
+/**
+ * Special-cased "all" method, applying the given route `path`,
+ * middleware, and callback to _every_ HTTP method.
+ *
+ * @param {String} path
+ * @param {Function} ...
+ * @return {app} for chaining
+ * @public
+ */
+
+app.all = function all(path) {
+  var route = this.route(path);
+  var args = slice.call(arguments, 1);
+
+  for (var i = 0; i < methods.length; i++) {
+    route[methods[i]].apply(route, args);
+  }
+
+  return this;
+};
+
+/**
+ * Render the given view `name` name with `options`
+ * and a callback accepting an error and the
+ * rendered template string.
+ *
+ * Example:
+ *
+ *    app.render('email', { name: 'Tobi' }, function(err, html){
+ *      // ...
+ *    })
+ *
+ * @param {String} name
+ * @param {Object|Function} options or fn
+ * @param {Function} callback
+ * @public
+ */
+
+app.render = function render(name, options, callback) {
+  var cache = this.cache;
+  var done = callback;
+  var engines = this.engines;
+  var opts = options;
+  var view;
+
+  // support callback function as second arg
+  if (typeof options === 'function') {
+    done = options;
+    opts = {};
+  }
+
+  // merge options
+  var renderOptions = { ...this.locals, ...opts._locals, ...opts };
+
+  // set .cache unless explicitly provided
+  if (renderOptions.cache == null) {
+    renderOptions.cache = this.enabled('view cache');
+  }
+
+  // primed cache
+  if (renderOptions.cache) {
+    view = cache[name];
+  }
+
+  // view
+  if (!view) {
+    var View = this.get('view');
+
+    view = new View(name, {
+      defaultEngine: this.get('view engine'),
+      root: this.get('views'),
+      engines: engines
+    });
+
+    if (!view.path) {
+      var dirs = Array.isArray(view.root) && view.root.length > 1
+        ? 'directories "' + view.root.slice(0, -1).join('", "') + '" or "' + view.root[view.root.length - 1] + '"'
+        : 'directory "' + view.root + '"'
+      var err = new Error('Failed to lookup view "' + name + '" in views ' + dirs);
+      err.view = view;
+      return done(err);
+    }
+
+    // prime the cache
+    if (renderOptions.cache) {
+      cache[name] = view;
+    }
+  }
+
+  // render
+  tryRender(view, renderOptions, done);
+};
+
+/**
+ * Listen for connections.
+ *
+ * A node `http.Server` is returned, with this
+ * application (which is a `Function`) as its
+ * callback. If you wish to create both an HTTP
+ * and HTTPS server you may do so with the "http"
+ * and "https" modules as shown here:
+ *
+ *    var http = require('node:http')
+ *      , https = require('node:https')
+ *      , express = require('express')
+ *      , app = express();
+ *
+ *    http.createServer(app).listen(80);
+ *    https.createServer({ ... }, app).listen(443);
+ *
+ * @return {http.Server}
+ * @public
+ */
+
+app.listen = function listen() {
+  var server = http.createServer(this)
+  var args = Array.prototype.slice.call(arguments)
+  if (typeof args[args.length - 1] === 'function') {
+    var done = args[args.length - 1] = once(args[args.length - 1])
+    server.once('error', done)
+  }
+  return server.listen.apply(server, args)
+}
+
+/**
+ * Log error using console.error.
+ *
+ * @param {Error} err
+ * @private
+ */
+
+function logerror(err) {
+  /* istanbul ignore next */
+  if (this.get('env') !== 'test') console.error(err.stack || err.toString());
+}
+
+/**
+ * Try rendering a view.
+ * @private
+ */
+
+function tryRender(view, options, callback) {
+  try {
+    view.render(options, callback);
+  } catch (err) {
+    callback(err);
+  }
+}
diff --git a/backend/node_modules/express/lib/express.js b/backend/node_modules/express/lib/express.js
new file mode 100644
index 0000000..2d502eb
--- /dev/null
+++ b/backend/node_modules/express/lib/express.js
@@ -0,0 +1,81 @@
+/*!
+ * express
+ * Copyright(c) 2009-2013 TJ Holowaychuk
+ * Copyright(c) 2013 Roman Shtylman
+ * Copyright(c) 2014-2015 Douglas Christopher Wilson
+ * MIT Licensed
+ */
+
+'use strict';
+
+/**
+ * Module dependencies.
+ */
+
+var bodyParser = require('body-parser')
+var EventEmitter = require('node:events').EventEmitter;
+var mixin = require('merge-descriptors');
+var proto = require('./application');
+var Router = require('router');
+var req = require('./request');
+var res = require('./response');
+
+/**
+ * Expose `createApplication()`.
+ */
+
+exports = module.exports = createApplication;
+
+/**
+ * Create an express application.
+ *
+ * @return {Function}
+ * @api public
+ */
+
+function createApplication() {
+  var app = function(req, res, next) {
+    app.handle(req, res, next);
+  };
+
+  mixin(app, EventEmitter.prototype, false);
+  mixin(app, proto, false);
+
+  // expose the prototype that will get set on requests
+  app.request = Object.create(req, {
+    app: { configurable: true, enumerable: true, writable: true, value: app }
+  })
+
+  // expose the prototype that will get set on responses
+  app.response = Object.create(res, {
+    app: { configurable: true, enumerable: true, writable: true, value: app }
+  })
+
+  app.init();
+  return app;
+}
+
+/**
+ * Expose the prototypes.
+ */
+
+exports.application = proto;
+exports.request = req;
+exports.response = res;
+
+/**
+ * Expose constructors.
+ */
+
+exports.Route = Router.Route;
+exports.Router = Router;
+
+/**
+ * Expose middleware
+ */
+
+exports.json = bodyParser.json
+exports.raw = bodyParser.raw
+exports.static = require('serve-static');
+exports.text = bodyParser.text
+exports.urlencoded = bodyParser.urlencoded
diff --git a/backend/node_modules/express/lib/request.js b/backend/node_modules/express/lib/request.js
new file mode 100644
index 0000000..d8e5263
--- /dev/null
+++ b/backend/node_modules/express/lib/request.js
@@ -0,0 +1,515 @@
+/*!
+ * express
+ * Copyright(c) 2009-2013 TJ Holowaychuk
+ * Copyright(c) 2013 Roman Shtylman
+ * Copyright(c) 2014-2015 Douglas Christopher Wilson
+ * MIT Licensed
+ */
+
+'use strict';
+
+/**
+ * Module dependencies.
+ * @private
+ */
+
+var accepts = require('accepts');
+var isIP = require('node:net').isIP;
+var typeis = require('type-is');
+var http = require('node:http');
+var fresh = require('fresh');
+var parseRange = require('range-parser');
+var parse = require('parseurl');
+var proxyaddr = require('proxy-addr');
+
+/**
+ * Request prototype.
+ * @public
+ */
+
+var req = Object.create(http.IncomingMessage.prototype)
+
+/**
+ * Module exports.
+ * @public
+ */
+
+module.exports = req
+
+/**
+ * Return request header.
+ *
+ * The `Referrer` header field is special-cased,
+ * both `Referrer` and `Referer` are interchangeable.
+ *
+ * Examples:
+ *
+ *     req.get('Content-Type');
+ *     // => "text/plain"
+ *
+ *     req.get('content-type');
+ *     // => "text/plain"
+ *
+ *     req.get('Something');
+ *     // => undefined
+ *
+ * Aliased as `req.header()`.
+ *
+ * @param {String} name
+ * @return {String}
+ * @public
+ */
+
+req.get =
+req.header = function header(name) {
+  if (!name) {
+    throw new TypeError('name argument is required to req.get');
+  }
+
+  if (typeof name !== 'string') {
+    throw new TypeError('name must be a string to req.get');
+  }
+
+  var lc = name.toLowerCase();
+
+  switch (lc) {
+    case 'referer':
+    case 'referrer':
+      return this.headers.referrer
+        || this.headers.referer;
+    default:
+      return this.headers[lc];
+  }
+};
+
+/**
+ * To do: update docs.
+ *
+ * Check if the given `type(s)` is acceptable, returning
+ * the best match when true, otherwise `undefined`, in which
+ * case you should respond with 406 "Not Acceptable".
+ *
+ * The `type` value may be a single MIME type string
+ * such as "application/json", an extension name
+ * such as "json", a comma-delimited list such as "json, html, text/plain",
+ * an argument list such as `"json", "html", "text/plain"`,
+ * or an array `["json", "html", "text/plain"]`. When a list
+ * or array is given, the _best_ match, if any is returned.
+ *
+ * Examples:
+ *
+ *     // Accept: text/html
+ *     req.accepts('html');
+ *     // => "html"
+ *
+ *     // Accept: text/*, application/json
+ *     req.accepts('html');
+ *     // => "html"
+ *     req.accepts('text/html');
+ *     // => "text/html"
+ *     req.accepts('json, text');
+ *     // => "json"
+ *     req.accepts('application/json');
+ *     // => "application/json"
+ *
+ *     // Accept: text/*, application/json
+ *     req.accepts('image/png');
+ *     req.accepts('png');
+ *     // => undefined
+ *
+ *     // Accept: text/*;q=.5, application/json
+ *     req.accepts(['html', 'json']);
+ *     req.accepts('html', 'json');
+ *     req.accepts('html, json');
+ *     // => "json"
+ *
+ * @param {String|Array} type(s)
+ * @return {String|Array|Boolean}
+ * @public
+ */
+
+req.accepts = function(){
+  var accept = accepts(this);
+  return accept.types.apply(accept, arguments);
+};
+
+/**
+ * Check if the given `encoding`s are accepted.
+ *
+ * @param {String} ...encoding
+ * @return {String|Array}
+ * @public
+ */
+
+req.acceptsEncodings = function(){
+  var accept = accepts(this);
+  return accept.encodings.apply(accept, arguments);
+};
+
+/**
+ * Check if the given `charset`s are acceptable,
+ * otherwise you should respond with 406 "Not Acceptable".
+ *
+ * @param {String} ...charset
+ * @return {String|Array}
+ * @public
+ */
+
+req.acceptsCharsets = function(){
+  var accept = accepts(this);
+  return accept.charsets.apply(accept, arguments);
+};
+
+/**
+ * Check if the given `lang`s are acceptable,
+ * otherwise you should respond with 406 "Not Acceptable".
+ *
+ * @param {String} ...lang
+ * @return {String|Array}
+ * @public
+ */
+
+req.acceptsLanguages = function(){
+  var accept = accepts(this);
+  return accept.languages.apply(accept, arguments);
+};
+
+/**
+ * Parse Range header field, capping to the given `size`.
+ *
+ * Unspecified ranges such as "0-" require knowledge of your resource length. In
+ * the case of a byte range this is of course the total number of bytes. If the
+ * Range header field is not given `undefined` is returned, `-1` when unsatisfiable,
+ * and `-2` when syntactically invalid.
+ *
+ * When ranges are returned, the array has a "type" property which is the type of
+ * range that is required (most commonly, "bytes"). Each array element is an object
+ * with a "start" and "end" property for the portion of the range.
+ *
+ * The "combine" option can be set to `true` and overlapping & adjacent ranges
+ * will be combined into a single range.
+ *
+ * NOTE: remember that ranges are inclusive, so for example "Range: users=0-3"
+ * should respond with 4 users when available, not 3.
+ *
+ * @param {number} size
+ * @param {object} [options]
+ * @param {boolean} [options.combine=false]
+ * @return {number|array}
+ * @public
+ */
+
+req.range = function range(size, options) {
+  var range = this.get('Range');
+  if (!range) return;
+  return parseRange(size, range, options);
+};
+
+/**
+ * Parse the query string of `req.url`.
+ *
+ * This uses the "query parser" setting to parse the raw
+ * string into an object.
+ *
+ * @return {String}
+ * @api public
+ */
+
+defineGetter(req, 'query', function query(){
+  var queryparse = this.app.get('query parser fn');
+
+  if (!queryparse) {
+    // parsing is disabled
+    return Object.create(null);
+  }
+
+  var querystring = parse(this).query;
+
+  return queryparse(querystring);
+});
+
+/**
+ * Check if the incoming request contains the "Content-Type"
+ * header field, and it contains the given mime `type`.
+ *
+ * Examples:
+ *
+ *      // With Content-Type: text/html; charset=utf-8
+ *      req.is('html');
+ *      req.is('text/html');
+ *      req.is('text/*');
+ *      // => true
+ *
+ *      // When Content-Type is application/json
+ *      req.is('json');
+ *      req.is('application/json');
+ *      req.is('application/*');
+ *      // => true
+ *
+ *      req.is('html');
+ *      // => false
+ *
+ * @param {String|Array} types...
+ * @return {String|false|null}
+ * @public
+ */
+
+req.is = function is(types) {
+  var arr = types;
+
+  // support flattened arguments
+  if (!Array.isArray(types)) {
+    arr = new Array(arguments.length);
+    for (var i = 0; i < arr.length; i++) {
+      arr[i] = arguments[i];
+    }
+  }
+
+  return typeis(this, arr);
+};
+
+/**
+ * Return the protocol string "http" or "https"
+ * when requested with TLS. When the "trust proxy"
+ * setting trusts the socket address, the
+ * "X-Forwarded-Proto" header field will be trusted
+ * and used if present.
+ *
+ * If you're running behind a reverse proxy that
+ * supplies https for you this may be enabled.
+ *
+ * @return {String}
+ * @public
+ */
+
+defineGetter(req, 'protocol', function protocol(){
+  var proto = this.connection.encrypted
+    ? 'https'
+    : 'http';
+  var trust = this.app.get('trust proxy fn');
+
+  if (!trust(this.connection.remoteAddress, 0)) {
+    return proto;
+  }
+
+  // Note: X-Forwarded-Proto is normally only ever a
+  //       single value, but this is to be safe.
+  var header = this.get('X-Forwarded-Proto') || proto
+  var index = header.indexOf(',')
+
+  return index !== -1
+    ? header.substring(0, index).trim()
+    : header.trim()
+});
+
+/**
+ * Short-hand for:
+ *
+ *    req.protocol === 'https'
+ *
+ * @return {Boolean}
+ * @public
+ */
+
+defineGetter(req, 'secure', function secure(){
+  return this.protocol === 'https';
+});
+
+/**
+ * Return the remote address from the trusted proxy.
+ *
+ * The is the remote address on the socket unless
+ * "trust proxy" is set.
+ *
+ * @return {String}
+ * @public
+ */
+
+defineGetter(req, 'ip', function ip(){
+  var trust = this.app.get('trust proxy fn');
+  return proxyaddr(this, trust);
+});
+
+/**
+ * When "trust proxy" is set, trusted proxy addresses + client.
+ *
+ * For example if the value were "client, proxy1, proxy2"
+ * you would receive the array `["client", "proxy1", "proxy2"]`
+ * where "proxy2" is the furthest down-stream and "proxy1" and
+ * "proxy2" were trusted.
+ *
+ * @return {Array}
+ * @public
+ */
+
+defineGetter(req, 'ips', function ips() {
+  var trust = this.app.get('trust proxy fn');
+  var addrs = proxyaddr.all(this, trust);
+
+  // reverse the order (to farthest -> closest)
+  // and remove socket address
+  addrs.reverse().pop()
+
+  return addrs
+});
+
+/**
+ * Return subdomains as an array.
+ *
+ * Subdomains are the dot-separated parts of the host before the main domain of
+ * the app. By default, the domain of the app is assumed to be the last two
+ * parts of the host. This can be changed by setting "subdomain offset".
+ *
+ * For example, if the domain is "tobi.ferrets.example.com":
+ * If "subdomain offset" is not set, req.subdomains is `["ferrets", "tobi"]`.
+ * If "subdomain offset" is 3, req.subdomains is `["tobi"]`.
+ *
+ * @return {Array}
+ * @public
+ */
+
+defineGetter(req, 'subdomains', function subdomains() {
+  var hostname = this.hostname;
+
+  if (!hostname) return [];
+
+  var offset = this.app.get('subdomain offset');
+  var subdomains = !isIP(hostname)
+    ? hostname.split('.').reverse()
+    : [hostname];
+
+  return subdomains.slice(offset);
+});
+
+/**
+ * Short-hand for `url.parse(req.url).pathname`.
+ *
+ * @return {String}
+ * @public
+ */
+
+defineGetter(req, 'path', function path() {
+  return parse(this).pathname;
+});
+
+/**
+ * Parse the "Host" header field to a host.
+ *
+ * When the "trust proxy" setting trusts the socket
+ * address, the "X-Forwarded-Host" header field will
+ * be trusted.
+ *
+ * @return {String}
+ * @public
+ */
+
+defineGetter(req, 'host', function host(){
+  var trust = this.app.get('trust proxy fn');
+  var val = this.get('X-Forwarded-Host');
+
+  if (!val || !trust(this.connection.remoteAddress, 0)) {
+    val = this.get('Host');
+  } else if (val.indexOf(',') !== -1) {
+    // Note: X-Forwarded-Host is normally only ever a
+    //       single value, but this is to be safe.
+    val = val.substring(0, val.indexOf(',')).trimRight()
+  }
+
+  return val || undefined;
+});
+
+/**
+ * Parse the "Host" header field to a hostname.
+ *
+ * When the "trust proxy" setting trusts the socket
+ * address, the "X-Forwarded-Host" header field will
+ * be trusted.
+ *
+ * @return {String}
+ * @api public
+ */
+
+defineGetter(req, 'hostname', function hostname(){
+  var host = this.host;
+
+  if (!host) return;
+
+  // IPv6 literal support
+  var offset = host[0] === '['
+    ? host.indexOf(']') + 1
+    : 0;
+  var index = host.indexOf(':', offset);
+
+  return index !== -1
+    ? host.substring(0, index)
+    : host;
+});
+
+/**
+ * Check if the request is fresh, aka
+ * Last-Modified or the ETag
+ * still match.
+ *
+ * @return {Boolean}
+ * @public
+ */
+
+defineGetter(req, 'fresh', function(){
+  var method = this.method;
+  var res = this.res
+  var status = res.statusCode
+
+  // GET or HEAD for weak freshness validation only
+  if ('GET' !== method && 'HEAD' !== method) return false;
+
+  // 2xx or 304 as per rfc2616 14.26
+  if ((status >= 200 && status < 300) || 304 === status) {
+    return fresh(this.headers, {
+      'etag': res.get('ETag'),
+      'last-modified': res.get('Last-Modified')
+    })
+  }
+
+  return false;
+});
+
+/**
+ * Check if the request is stale, aka
+ * "Last-Modified" and / or the "ETag" for the
+ * resource has changed.
+ *
+ * @return {Boolean}
+ * @public
+ */
+
+defineGetter(req, 'stale', function stale(){
+  return !this.fresh;
+});
+
+/**
+ * Check if the request was an _XMLHttpRequest_.
+ *
+ * @return {Boolean}
+ * @public
+ */
+
+defineGetter(req, 'xhr', function xhr(){
+  var val = this.get('X-Requested-With') || '';
+  return val.toLowerCase() === 'xmlhttprequest';
+});
+
+/**
+ * Helper function for creating a getter on an object.
+ *
+ * @param {Object} obj
+ * @param {String} name
+ * @param {Function} getter
+ * @private
+ */
+function defineGetter(obj, name, getter) {
+  Object.defineProperty(obj, name, {
+    configurable: true,
+    enumerable: true,
+    get: getter
+  });
+}
diff --git a/backend/node_modules/express/lib/response.js b/backend/node_modules/express/lib/response.js
new file mode 100644
index 0000000..9362d0e
--- /dev/null
+++ b/backend/node_modules/express/lib/response.js
@@ -0,0 +1,1039 @@
+/*!
+ * express
+ * Copyright(c) 2009-2013 TJ Holowaychuk
+ * Copyright(c) 2014-2015 Douglas Christopher Wilson
+ * MIT Licensed
+ */
+
+'use strict';
+
+/**
+ * Module dependencies.
+ * @private
+ */
+
+var contentDisposition = require('content-disposition');
+var createError = require('http-errors')
+var encodeUrl = require('encodeurl');
+var escapeHtml = require('escape-html');
+var http = require('node:http');
+var onFinished = require('on-finished');
+var mime = require('mime-types')
+var path = require('node:path');
+var pathIsAbsolute = require('node:path').isAbsolute;
+var statuses = require('statuses')
+var sign = require('cookie-signature').sign;
+var normalizeType = require('./utils').normalizeType;
+var normalizeTypes = require('./utils').normalizeTypes;
+var setCharset = require('./utils').setCharset;
+var cookie = require('cookie');
+var send = require('send');
+var extname = path.extname;
+var resolve = path.resolve;
+var vary = require('vary');
+
+/**
+ * Response prototype.
+ * @public
+ */
+
+var res = Object.create(http.ServerResponse.prototype)
+
+/**
+ * Module exports.
+ * @public
+ */
+
+module.exports = res
+
+/**
+ * Set the HTTP status code for the response.
+ *
+ * Expects an integer value between 100 and 999 inclusive.
+ * Throws an error if the provided status code is not an integer or if it's outside the allowable range.
+ *
+ * @param {number} code - The HTTP status code to set.
+ * @return {ServerResponse} - Returns itself for chaining methods.
+ * @throws {TypeError} If `code` is not an integer.
+ * @throws {RangeError} If `code` is outside the range 100 to 999.
+ * @public
+ */
+
+res.status = function status(code) {
+  // Check if the status code is not an integer
+  if (!Number.isInteger(code)) {
+    throw new TypeError(`Invalid status code: ${JSON.stringify(code)}. Status code must be an integer.`);
+  }
+  // Check if the status code is outside of Node's valid range
+  if (code < 100 || code > 999) {
+    throw new RangeError(`Invalid status code: ${JSON.stringify(code)}. Status code must be greater than 99 and less than 1000.`);
+  }
+
+  this.statusCode = code;
+  return this;
+};
+
+/**
+ * Set Link header field with the given `links`.
+ *
+ * Examples:
+ *
+ *    res.links({
+ *      next: 'http://api.example.com/users?page=2',
+ *      last: 'http://api.example.com/users?page=5',
+ *      pages: [
+ *        'http://api.example.com/users?page=1',
+ *        'http://api.example.com/users?page=2'
+ *      ]
+ *    });
+ *
+ * @param {Object} links
+ * @return {ServerResponse}
+ * @public
+ */
+
+res.links = function(links) {
+  var link = this.get('Link') || '';
+  if (link) link += ', ';
+  return this.set('Link', link + Object.keys(links).map(function(rel) {
+    // Allow multiple links if links[rel] is an array
+    if (Array.isArray(links[rel])) {
+      return links[rel].map(function (singleLink) {
+        return `<${singleLink}>; rel="${rel}"`;
+      }).join(', ');
+    } else {
+      return `<${links[rel]}>; rel="${rel}"`;
+    }
+  }).join(', '));
+};
+
+/**
+ * Send a response.
+ *
+ * Examples:
+ *
+ *     res.send(Buffer.from('wahoo'));
+ *     res.send({ some: 'json' });
+ *     res.send('<p>some html</p>');
+ *
+ * @param {string|number|boolean|object|Buffer} body
+ * @public
+ */
+
+res.send = function send(body) {
+  var chunk = body;
+  var encoding;
+  var req = this.req;
+  var type;
+
+  // settings
+  var app = this.app;
+
+  switch (typeof chunk) {
+    // string defaulting to html
+    case 'string':
+      if (!this.get('Content-Type')) {
+        this.type('html');
+      }
+      break;
+    case 'boolean':
+    case 'number':
+    case 'object':
+      if (chunk === null) {
+        chunk = '';
+      } else if (ArrayBuffer.isView(chunk)) {
+        if (!this.get('Content-Type')) {
+          this.type('bin');
+        }
+      } else {
+        return this.json(chunk);
+      }
+      break;
+  }
+
+  // write strings in utf-8
+  if (typeof chunk === 'string') {
+    encoding = 'utf8';
+    type = this.get('Content-Type');
+
+    // reflect this in content-type
+    if (typeof type === 'string') {
+      this.set('Content-Type', setCharset(type, 'utf-8'));
+    }
+  }
+
+  // determine if ETag should be generated
+  var etagFn = app.get('etag fn')
+  var generateETag = !this.get('ETag') && typeof etagFn === 'function'
+
+  // populate Content-Length
+  var len
+  if (chunk !== undefined) {
+    if (Buffer.isBuffer(chunk)) {
+      // get length of Buffer
+      len = chunk.length
+    } else if (!generateETag && chunk.length < 1000) {
+      // just calculate length when no ETag + small chunk
+      len = Buffer.byteLength(chunk, encoding)
+    } else {
+      // convert chunk to Buffer and calculate
+      chunk = Buffer.from(chunk, encoding)
+      encoding = undefined;
+      len = chunk.length
+    }
+
+    this.set('Content-Length', len);
+  }
+
+  // populate ETag
+  var etag;
+  if (generateETag && len !== undefined) {
+    if ((etag = etagFn(chunk, encoding))) {
+      this.set('ETag', etag);
+    }
+  }
+
+  // freshness
+  if (req.fresh) this.status(304);
+
+  // strip irrelevant headers
+  if (204 === this.statusCode || 304 === this.statusCode) {
+    this.removeHeader('Content-Type');
+    this.removeHeader('Content-Length');
+    this.removeHeader('Transfer-Encoding');
+    chunk = '';
+  }
+
+  // alter headers for 205
+  if (this.statusCode === 205) {
+    this.set('Content-Length', '0')
+    this.removeHeader('Transfer-Encoding')
+    chunk = ''
+  }
+
+  if (req.method === 'HEAD') {
+    // skip body for HEAD
+    this.end();
+  } else {
+    // respond
+    this.end(chunk, encoding);
+  }
+
+  return this;
+};
+
+/**
+ * Send JSON response.
+ *
+ * Examples:
+ *
+ *     res.json(null);
+ *     res.json({ user: 'tj' });
+ *
+ * @param {string|number|boolean|object} obj
+ * @public
+ */
+
+res.json = function json(obj) {
+  // settings
+  var app = this.app;
+  var escape = app.get('json escape')
+  var replacer = app.get('json replacer');
+  var spaces = app.get('json spaces');
+  var body = stringify(obj, replacer, spaces, escape)
+
+  // content-type
+  if (!this.get('Content-Type')) {
+    this.set('Content-Type', 'application/json');
+  }
+
+  return this.send(body);
+};
+
+/**
+ * Send JSON response with JSONP callback support.
+ *
+ * Examples:
+ *
+ *     res.jsonp(null);
+ *     res.jsonp({ user: 'tj' });
+ *
+ * @param {string|number|boolean|object} obj
+ * @public
+ */
+
+res.jsonp = function jsonp(obj) {
+  // settings
+  var app = this.app;
+  var escape = app.get('json escape')
+  var replacer = app.get('json replacer');
+  var spaces = app.get('json spaces');
+  var body = stringify(obj, replacer, spaces, escape)
+  var callback = this.req.query[app.get('jsonp callback name')];
+
+  // content-type
+  if (!this.get('Content-Type')) {
+    this.set('X-Content-Type-Options', 'nosniff');
+    this.set('Content-Type', 'application/json');
+  }
+
+  // fixup callback
+  if (Array.isArray(callback)) {
+    callback = callback[0];
+  }
+
+  // jsonp
+  if (typeof callback === 'string' && callback.length !== 0) {
+    this.set('X-Content-Type-Options', 'nosniff');
+    this.set('Content-Type', 'text/javascript');
+
+    // restrict callback charset
+    callback = callback.replace(/[^\[\]\w$.]/g, '');
+
+    if (body === undefined) {
+      // empty argument
+      body = ''
+    } else if (typeof body === 'string') {
+      // replace chars not allowed in JavaScript that are in JSON
+      body = body
+        .replace(/\u2028/g, '\\u2028')
+        .replace(/\u2029/g, '\\u2029')
+    }
+
+    // the /**/ is a specific security mitigation for "Rosetta Flash JSONP abuse"
+    // the typeof check is just to reduce client error noise
+    body = '/**/ typeof ' + callback + ' === \'function\' && ' + callback + '(' + body + ');';
+  }
+
+  return this.send(body);
+};
+
+/**
+ * Send given HTTP status code.
+ *
+ * Sets the response status to `statusCode` and the body of the
+ * response to the standard description from node's http.STATUS_CODES
+ * or the statusCode number if no description.
+ *
+ * Examples:
+ *
+ *     res.sendStatus(200);
+ *
+ * @param {number} statusCode
+ * @public
+ */
+
+res.sendStatus = function sendStatus(statusCode) {
+  var body = statuses.message[statusCode] || String(statusCode)
+
+  this.status(statusCode);
+  this.type('txt');
+
+  return this.send(body);
+};
+
+/**
+ * Transfer the file at the given `path`.
+ *
+ * Automatically sets the _Content-Type_ response header field.
+ * The callback `callback(err)` is invoked when the transfer is complete
+ * or when an error occurs. Be sure to check `res.headersSent`
+ * if you wish to attempt responding, as the header and some data
+ * may have already been transferred.
+ *
+ * Options:
+ *
+ *   - `maxAge`   defaulting to 0 (can be string converted by `ms`)
+ *   - `root`     root directory for relative filenames
+ *   - `headers`  object of headers to serve with file
+ *   - `dotfiles` serve dotfiles, defaulting to false; can be `"allow"` to send them
+ *
+ * Other options are passed along to `send`.
+ *
+ * Examples:
+ *
+ *  The following example illustrates how `res.sendFile()` may
+ *  be used as an alternative for the `static()` middleware for
+ *  dynamic situations. The code backing `res.sendFile()` is actually
+ *  the same code, so HTTP cache support etc is identical.
+ *
+ *     app.get('/user/:uid/photos/:file', function(req, res){
+ *       var uid = req.params.uid
+ *         , file = req.params.file;
+ *
+ *       req.user.mayViewFilesFrom(uid, function(yes){
+ *         if (yes) {
+ *           res.sendFile('/uploads/' + uid + '/' + file);
+ *         } else {
+ *           res.send(403, 'Sorry! you cant see that.');
+ *         }
+ *       });
+ *     });
+ *
+ * @public
+ */
+
+res.sendFile = function sendFile(path, options, callback) {
+  var done = callback;
+  var req = this.req;
+  var res = this;
+  var next = req.next;
+  var opts = options || {};
+
+  if (!path) {
+    throw new TypeError('path argument is required to res.sendFile');
+  }
+
+  if (typeof path !== 'string') {
+    throw new TypeError('path must be a string to res.sendFile')
+  }
+
+  // support function as second arg
+  if (typeof options === 'function') {
+    done = options;
+    opts = {};
+  }
+
+  if (!opts.root && !pathIsAbsolute(path)) {
+    throw new TypeError('path must be absolute or specify root to res.sendFile');
+  }
+
+  // create file stream
+  var pathname = encodeURI(path);
+
+  // wire application etag option to send
+  opts.etag = this.app.enabled('etag');
+  var file = send(req, pathname, opts);
+
+  // transfer
+  sendfile(res, file, opts, function (err) {
+    if (done) return done(err);
+    if (err && err.code === 'EISDIR') return next();
+
+    // next() all but write errors
+    if (err && err.code !== 'ECONNABORTED' && err.syscall !== 'write') {
+      next(err);
+    }
+  });
+};
+
+/**
+ * Transfer the file at the given `path` as an attachment.
+ *
+ * Optionally providing an alternate attachment `filename`,
+ * and optional callback `callback(err)`. The callback is invoked
+ * when the data transfer is complete, or when an error has
+ * occurred. Be sure to check `res.headersSent` if you plan to respond.
+ *
+ * Optionally providing an `options` object to use with `res.sendFile()`.
+ * This function will set the `Content-Disposition` header, overriding
+ * any `Content-Disposition` header passed as header options in order
+ * to set the attachment and filename.
+ *
+ * This method uses `res.sendFile()`.
+ *
+ * @public
+ */
+
+res.download = function download (path, filename, options, callback) {
+  var done = callback;
+  var name = filename;
+  var opts = options || null
+
+  // support function as second or third arg
+  if (typeof filename === 'function') {
+    done = filename;
+    name = null;
+    opts = null
+  } else if (typeof options === 'function') {
+    done = options
+    opts = null
+  }
+
+  // support optional filename, where options may be in it's place
+  if (typeof filename === 'object' &&
+    (typeof options === 'function' || options === undefined)) {
+    name = null
+    opts = filename
+  }
+
+  // set Content-Disposition when file is sent
+  var headers = {
+    'Content-Disposition': contentDisposition(name || path)
+  };
+
+  // merge user-provided headers
+  if (opts && opts.headers) {
+    var keys = Object.keys(opts.headers)
+    for (var i = 0; i < keys.length; i++) {
+      var key = keys[i]
+      if (key.toLowerCase() !== 'content-disposition') {
+        headers[key] = opts.headers[key]
+      }
+    }
+  }
+
+  // merge user-provided options
+  opts = Object.create(opts)
+  opts.headers = headers
+
+  // Resolve the full path for sendFile
+  var fullPath = !opts.root
+    ? resolve(path)
+    : path
+
+  // send file
+  return this.sendFile(fullPath, opts, done)
+};
+
+/**
+ * Set _Content-Type_ response header with `type` through `mime.contentType()`
+ * when it does not contain "/", or set the Content-Type to `type` otherwise.
+ * When no mapping is found though `mime.contentType()`, the type is set to
+ * "application/octet-stream".
+ *
+ * Examples:
+ *
+ *     res.type('.html');
+ *     res.type('html');
+ *     res.type('json');
+ *     res.type('application/json');
+ *     res.type('png');
+ *
+ * @param {String} type
+ * @return {ServerResponse} for chaining
+ * @public
+ */
+
+res.contentType =
+res.type = function contentType(type) {
+  var ct = type.indexOf('/') === -1
+    ? (mime.contentType(type) || 'application/octet-stream')
+    : type;
+
+  return this.set('Content-Type', ct);
+};
+
+/**
+ * Respond to the Acceptable formats using an `obj`
+ * of mime-type callbacks.
+ *
+ * This method uses `req.accepted`, an array of
+ * acceptable types ordered by their quality values.
+ * When "Accept" is not present the _first_ callback
+ * is invoked, otherwise the first match is used. When
+ * no match is performed the server responds with
+ * 406 "Not Acceptable".
+ *
+ * Content-Type is set for you, however if you choose
+ * you may alter this within the callback using `res.type()`
+ * or `res.set('Content-Type', ...)`.
+ *
+ *    res.format({
+ *      'text/plain': function(){
+ *        res.send('hey');
+ *      },
+ *
+ *      'text/html': function(){
+ *        res.send('<p>hey</p>');
+ *      },
+ *
+ *      'application/json': function () {
+ *        res.send({ message: 'hey' });
+ *      }
+ *    });
+ *
+ * In addition to canonicalized MIME types you may
+ * also use extnames mapped to these types:
+ *
+ *    res.format({
+ *      text: function(){
+ *        res.send('hey');
+ *      },
+ *
+ *      html: function(){
+ *        res.send('<p>hey</p>');
+ *      },
+ *
+ *      json: function(){
+ *        res.send({ message: 'hey' });
+ *      }
+ *    });
+ *
+ * By default Express passes an `Error`
+ * with a `.status` of 406 to `next(err)`
+ * if a match is not made. If you provide
+ * a `.default` callback it will be invoked
+ * instead.
+ *
+ * @param {Object} obj
+ * @return {ServerResponse} for chaining
+ * @public
+ */
+
+res.format = function(obj){
+  var req = this.req;
+  var next = req.next;
+
+  var keys = Object.keys(obj)
+    .filter(function (v) { return v !== 'default' })
+
+  var key = keys.length > 0
+    ? req.accepts(keys)
+    : false;
+
+  this.vary("Accept");
+
+  if (key) {
+    this.set('Content-Type', normalizeType(key).value);
+    obj[key](req, this, next);
+  } else if (obj.default) {
+    obj.default(req, this, next)
+  } else {
+    next(createError(406, {
+      types: normalizeTypes(keys).map(function (o) { return o.value })
+    }))
+  }
+
+  return this;
+};
+
+/**
+ * Set _Content-Disposition_ header to _attachment_ with optional `filename`.
+ *
+ * @param {String} filename
+ * @return {ServerResponse}
+ * @public
+ */
+
+res.attachment = function attachment(filename) {
+  if (filename) {
+    this.type(extname(filename));
+  }
+
+  this.set('Content-Disposition', contentDisposition(filename));
+
+  return this;
+};
+
+/**
+ * Append additional header `field` with value `val`.
+ *
+ * Example:
+ *
+ *    res.append('Link', ['<http://localhost/>', '<http://localhost:3000/>']);
+ *    res.append('Set-Cookie', 'foo=bar; Path=/; HttpOnly');
+ *    res.append('Warning', '199 Miscellaneous warning');
+ *
+ * @param {String} field
+ * @param {String|Array} val
+ * @return {ServerResponse} for chaining
+ * @public
+ */
+
+res.append = function append(field, val) {
+  var prev = this.get(field);
+  var value = val;
+
+  if (prev) {
+    // concat the new and prev vals
+    value = Array.isArray(prev) ? prev.concat(val)
+      : Array.isArray(val) ? [prev].concat(val)
+        : [prev, val]
+  }
+
+  return this.set(field, value);
+};
+
+/**
+ * Set header `field` to `val`, or pass
+ * an object of header fields.
+ *
+ * Examples:
+ *
+ *    res.set('Foo', ['bar', 'baz']);
+ *    res.set('Accept', 'application/json');
+ *    res.set({ Accept: 'text/plain', 'X-API-Key': 'tobi' });
+ *
+ * Aliased as `res.header()`.
+ *
+ * When the set header is "Content-Type", the type is expanded to include
+ * the charset if not present using `mime.contentType()`.
+ *
+ * @param {String|Object} field
+ * @param {String|Array} val
+ * @return {ServerResponse} for chaining
+ * @public
+ */
+
+res.set =
+res.header = function header(field, val) {
+  if (arguments.length === 2) {
+    var value = Array.isArray(val)
+      ? val.map(String)
+      : String(val);
+
+    // add charset to content-type
+    if (field.toLowerCase() === 'content-type') {
+      if (Array.isArray(value)) {
+        throw new TypeError('Content-Type cannot be set to an Array');
+      }
+      value = mime.contentType(value)
+    }
+
+    this.setHeader(field, value);
+  } else {
+    for (var key in field) {
+      this.set(key, field[key]);
+    }
+  }
+  return this;
+};
+
+/**
+ * Get value for header `field`.
+ *
+ * @param {String} field
+ * @return {String}
+ * @public
+ */
+
+res.get = function(field){
+  return this.getHeader(field);
+};
+
+/**
+ * Clear cookie `name`.
+ *
+ * @param {String} name
+ * @param {Object} [options]
+ * @return {ServerResponse} for chaining
+ * @public
+ */
+
+res.clearCookie = function clearCookie(name, options) {
+  // Force cookie expiration by setting expires to the past
+  const opts = { path: '/', ...options, expires: new Date(1)};
+  // ensure maxAge is not passed
+  delete opts.maxAge
+
+  return this.cookie(name, '', opts);
+};
+
+/**
+ * Set cookie `name` to `value`, with the given `options`.
+ *
+ * Options:
+ *
+ *    - `maxAge`   max-age in milliseconds, converted to `expires`
+ *    - `signed`   sign the cookie
+ *    - `path`     defaults to "/"
+ *
+ * Examples:
+ *
+ *    // "Remember Me" for 15 minutes
+ *    res.cookie('rememberme', '1', { expires: new Date(Date.now() + 900000), httpOnly: true });
+ *
+ *    // same as above
+ *    res.cookie('rememberme', '1', { maxAge: 900000, httpOnly: true })
+ *
+ * @param {String} name
+ * @param {String|Object} value
+ * @param {Object} [options]
+ * @return {ServerResponse} for chaining
+ * @public
+ */
+
+res.cookie = function (name, value, options) {
+  var opts = { ...options };
+  var secret = this.req.secret;
+  var signed = opts.signed;
+
+  if (signed && !secret) {
+    throw new Error('cookieParser("secret") required for signed cookies');
+  }
+
+  var val = typeof value === 'object'
+    ? 'j:' + JSON.stringify(value)
+    : String(value);
+
+  if (signed) {
+    val = 's:' + sign(val, secret);
+  }
+
+  if (opts.maxAge != null) {
+    var maxAge = opts.maxAge - 0
+
+    if (!isNaN(maxAge)) {
+      opts.expires = new Date(Date.now() + maxAge)
+      opts.maxAge = Math.floor(maxAge / 1000)
+    }
+  }
+
+  if (opts.path == null) {
+    opts.path = '/';
+  }
+
+  this.append('Set-Cookie', cookie.serialize(name, String(val), opts));
+
+  return this;
+};
+
+/**
+ * Set the location header to `url`.
+ *
+ * The given `url` can also be "back", which redirects
+ * to the _Referrer_ or _Referer_ headers or "/".
+ *
+ * Examples:
+ *
+ *    res.location('/foo/bar').;
+ *    res.location('http://example.com');
+ *    res.location('../login');
+ *
+ * @param {String} url
+ * @return {ServerResponse} for chaining
+ * @public
+ */
+
+res.location = function location(url) {
+  return this.set('Location', encodeUrl(url));
+};
+
+/**
+ * Redirect to the given `url` with optional response `status`
+ * defaulting to 302.
+ *
+ * Examples:
+ *
+ *    res.redirect('/foo/bar');
+ *    res.redirect('http://example.com');
+ *    res.redirect(301, 'http://example.com');
+ *    res.redirect('../login'); // /blog/post/1 -> /blog/login
+ *
+ * @public
+ */
+
+res.redirect = function redirect(url) {
+  var address = url;
+  var body;
+  var status = 302;
+
+  // allow status / url
+  if (arguments.length === 2) {
+    status = arguments[0]
+    address = arguments[1]
+  }
+
+  // Set location header
+  address = this.location(address).get('Location');
+
+  // Support text/{plain,html} by default
+  this.format({
+    text: function(){
+      body = statuses.message[status] + '. Redirecting to ' + address
+    },
+
+    html: function(){
+      var u = escapeHtml(address);
+      body = '<p>' + statuses.message[status] + '. Redirecting to ' + u + '</p>'
+    },
+
+    default: function(){
+      body = '';
+    }
+  });
+
+  // Respond
+  this.status(status);
+  this.set('Content-Length', Buffer.byteLength(body));
+
+  if (this.req.method === 'HEAD') {
+    this.end();
+  } else {
+    this.end(body);
+  }
+};
+
+/**
+ * Add `field` to Vary. If already present in the Vary set, then
+ * this call is simply ignored.
+ *
+ * @param {Array|String} field
+ * @return {ServerResponse} for chaining
+ * @public
+ */
+
+res.vary = function(field){
+  vary(this, field);
+
+  return this;
+};
+
+/**
+ * Render `view` with the given `options` and optional callback `fn`.
+ * When a callback function is given a response will _not_ be made
+ * automatically, otherwise a response of _200_ and _text/html_ is given.
+ *
+ * Options:
+ *
+ *  - `cache`     boolean hinting to the engine it should cache
+ *  - `filename`  filename of the view being rendered
+ *
+ * @public
+ */
+
+res.render = function render(view, options, callback) {
+  var app = this.req.app;
+  var done = callback;
+  var opts = options || {};
+  var req = this.req;
+  var self = this;
+
+  // support callback function as second arg
+  if (typeof options === 'function') {
+    done = options;
+    opts = {};
+  }
+
+  // merge res.locals
+  opts._locals = self.locals;
+
+  // default callback to respond
+  done = done || function (err, str) {
+    if (err) return req.next(err);
+    self.send(str);
+  };
+
+  // render
+  app.render(view, opts, done);
+};
+
+// pipe the send file stream
+function sendfile(res, file, options, callback) {
+  var done = false;
+  var streaming;
+
+  // request aborted
+  function onaborted() {
+    if (done) return;
+    done = true;
+
+    var err = new Error('Request aborted');
+    err.code = 'ECONNABORTED';
+    callback(err);
+  }
+
+  // directory
+  function ondirectory() {
+    if (done) return;
+    done = true;
+
+    var err = new Error('EISDIR, read');
+    err.code = 'EISDIR';
+    callback(err);
+  }
+
+  // errors
+  function onerror(err) {
+    if (done) return;
+    done = true;
+    callback(err);
+  }
+
+  // ended
+  function onend() {
+    if (done) return;
+    done = true;
+    callback();
+  }
+
+  // file
+  function onfile() {
+    streaming = false;
+  }
+
+  // finished
+  function onfinish(err) {
+    if (err && err.code === 'ECONNRESET') return onaborted();
+    if (err) return onerror(err);
+    if (done) return;
+
+    setImmediate(function () {
+      if (streaming !== false && !done) {
+        onaborted();
+        return;
+      }
+
+      if (done) return;
+      done = true;
+      callback();
+    });
+  }
+
+  // streaming
+  function onstream() {
+    streaming = true;
+  }
+
+  file.on('directory', ondirectory);
+  file.on('end', onend);
+  file.on('error', onerror);
+  file.on('file', onfile);
+  file.on('stream', onstream);
+  onFinished(res, onfinish);
+
+  if (options.headers) {
+    // set headers on successful transfer
+    file.on('headers', function headers(res) {
+      var obj = options.headers;
+      var keys = Object.keys(obj);
+
+      for (var i = 0; i < keys.length; i++) {
+        var k = keys[i];
+        res.setHeader(k, obj[k]);
+      }
+    });
+  }
+
+  // pipe
+  file.pipe(res);
+}
+
+/**
+ * Stringify JSON, like JSON.stringify, but v8 optimized, with the
+ * ability to escape characters that can trigger HTML sniffing.
+ *
+ * @param {*} value
+ * @param {function} replacer
+ * @param {number} spaces
+ * @param {boolean} escape
+ * @returns {string}
+ * @private
+ */
+
+function stringify (value, replacer, spaces, escape) {
+  // v8 checks arguments.length for optimizing simple call
+  // https://bugs.chromium.org/p/v8/issues/detail?id=4730
+  var json = replacer || spaces
+    ? JSON.stringify(value, replacer, spaces)
+    : JSON.stringify(value);
+
+  if (escape && typeof json === 'string') {
+    json = json.replace(/[<>&]/g, function (c) {
+      switch (c.charCodeAt(0)) {
+        case 0x3c:
+          return '\\u003c'
+        case 0x3e:
+          return '\\u003e'
+        case 0x26:
+          return '\\u0026'
+        /* istanbul ignore next: unreachable default */
+        default:
+          return c
+      }
+    })
+  }
+
+  return json
+}
diff --git a/backend/node_modules/express/lib/utils.js b/backend/node_modules/express/lib/utils.js
new file mode 100644
index 0000000..d53c5a1
--- /dev/null
+++ b/backend/node_modules/express/lib/utils.js
@@ -0,0 +1,269 @@
+/*!
+ * express
+ * Copyright(c) 2009-2013 TJ Holowaychuk
+ * Copyright(c) 2014-2015 Douglas Christopher Wilson
+ * MIT Licensed
+ */
+
+'use strict';
+
+/**
+ * Module dependencies.
+ * @api private
+ */
+
+var { METHODS } = require('node:http');
+var contentType = require('content-type');
+var etag = require('etag');
+var mime = require('mime-types')
+var proxyaddr = require('proxy-addr');
+var qs = require('qs');
+var querystring = require('querystring');
+
+/**
+ * A list of lowercased HTTP methods that are supported by Node.js.
+ * @api private
+ */
+exports.methods = METHODS.map((method) => method.toLowerCase());
+
+/**
+ * Return strong ETag for `body`.
+ *
+ * @param {String|Buffer} body
+ * @param {String} [encoding]
+ * @return {String}
+ * @api private
+ */
+
+exports.etag = createETagGenerator({ weak: false })
+
+/**
+ * Return weak ETag for `body`.
+ *
+ * @param {String|Buffer} body
+ * @param {String} [encoding]
+ * @return {String}
+ * @api private
+ */
+
+exports.wetag = createETagGenerator({ weak: true })
+
+/**
+ * Normalize the given `type`, for example "html" becomes "text/html".
+ *
+ * @param {String} type
+ * @return {Object}
+ * @api private
+ */
+
+exports.normalizeType = function(type){
+  return ~type.indexOf('/')
+    ? acceptParams(type)
+    : { value: (mime.lookup(type) || 'application/octet-stream'), params: {} }
+};
+
+/**
+ * Normalize `types`, for example "html" becomes "text/html".
+ *
+ * @param {Array} types
+ * @return {Array}
+ * @api private
+ */
+
+exports.normalizeTypes = function(types) {
+  return types.map(exports.normalizeType);
+};
+
+
+/**
+ * Parse accept params `str` returning an
+ * object with `.value`, `.quality` and `.params`.
+ *
+ * @param {String} str
+ * @return {Object}
+ * @api private
+ */
+
+function acceptParams (str) {
+  var length = str.length;
+  var colonIndex = str.indexOf(';');
+  var index = colonIndex === -1 ? length : colonIndex;
+  var ret = { value: str.slice(0, index).trim(), quality: 1, params: {} };
+
+  while (index < length) {
+    var splitIndex = str.indexOf('=', index);
+    if (splitIndex === -1) break;
+
+    var colonIndex = str.indexOf(';', index);
+    var endIndex = colonIndex === -1 ? length : colonIndex;
+
+    if (splitIndex > endIndex) {
+      index = str.lastIndexOf(';', splitIndex - 1) + 1;
+      continue;
+    }
+
+    var key = str.slice(index, splitIndex).trim();
+    var value = str.slice(splitIndex + 1, endIndex).trim();
+
+    if (key === 'q') {
+      ret.quality = parseFloat(value);
+    } else {
+      ret.params[key] = value;
+    }
+
+    index = endIndex + 1;
+  }
+
+  return ret;
+}
+
+/**
+ * Compile "etag" value to function.
+ *
+ * @param  {Boolean|String|Function} val
+ * @return {Function}
+ * @api private
+ */
+
+exports.compileETag = function(val) {
+  var fn;
+
+  if (typeof val === 'function') {
+    return val;
+  }
+
+  switch (val) {
+    case true:
+    case 'weak':
+      fn = exports.wetag;
+      break;
+    case false:
+      break;
+    case 'strong':
+      fn = exports.etag;
+      break;
+    default:
+      throw new TypeError('unknown value for etag function: ' + val);
+  }
+
+  return fn;
+}
+
+/**
+ * Compile "query parser" value to function.
+ *
+ * @param  {String|Function} val
+ * @return {Function}
+ * @api private
+ */
+
+exports.compileQueryParser = function compileQueryParser(val) {
+  var fn;
+
+  if (typeof val === 'function') {
+    return val;
+  }
+
+  switch (val) {
+    case true:
+    case 'simple':
+      fn = querystring.parse;
+      break;
+    case false:
+      break;
+    case 'extended':
+      fn = parseExtendedQueryString;
+      break;
+    default:
+      throw new TypeError('unknown value for query parser function: ' + val);
+  }
+
+  return fn;
+}
+
+/**
+ * Compile "proxy trust" value to function.
+ *
+ * @param  {Boolean|String|Number|Array|Function} val
+ * @return {Function}
+ * @api private
+ */
+
+exports.compileTrust = function(val) {
+  if (typeof val === 'function') return val;
+
+  if (val === true) {
+    // Support plain true/false
+    return function(){ return true };
+  }
+
+  if (typeof val === 'number') {
+    // Support trusting hop count
+    return function(a, i){ return i < val };
+  }
+
+  if (typeof val === 'string') {
+    // Support comma-separated values
+    val = val.split(',')
+      .map(function (v) { return v.trim() })
+  }
+
+  return proxyaddr.compile(val || []);
+}
+
+/**
+ * Set the charset in a given Content-Type string.
+ *
+ * @param {String} type
+ * @param {String} charset
+ * @return {String}
+ * @api private
+ */
+
+exports.setCharset = function setCharset(type, charset) {
+  if (!type || !charset) {
+    return type;
+  }
+
+  // parse type
+  var parsed = contentType.parse(type);
+
+  // set charset
+  parsed.parameters.charset = charset;
+
+  // format type
+  return contentType.format(parsed);
+};
+
+/**
+ * Create an ETag generator function, generating ETags with
+ * the given options.
+ *
+ * @param {object} options
+ * @return {function}
+ * @private
+ */
+
+function createETagGenerator (options) {
+  return function generateETag (body, encoding) {
+    var buf = !Buffer.isBuffer(body)
+      ? Buffer.from(body, encoding)
+      : body
+
+    return etag(buf, options)
+  }
+}
+
+/**
+ * Parse an extended query string with qs.
+ *
+ * @param {String} str
+ * @return {Object}
+ * @private
+ */
+
+function parseExtendedQueryString(str) {
+  return qs.parse(str, {
+    allowPrototypes: true
+  });
+}
diff --git a/backend/node_modules/express/lib/view.js b/backend/node_modules/express/lib/view.js
new file mode 100644
index 0000000..d66b4a2
--- /dev/null
+++ b/backend/node_modules/express/lib/view.js
@@ -0,0 +1,205 @@
+/*!
+ * express
+ * Copyright(c) 2009-2013 TJ Holowaychuk
+ * Copyright(c) 2013 Roman Shtylman
+ * Copyright(c) 2014-2015 Douglas Christopher Wilson
+ * MIT Licensed
+ */
+
+'use strict';
+
+/**
+ * Module dependencies.
+ * @private
+ */
+
+var debug = require('debug')('express:view');
+var path = require('node:path');
+var fs = require('node:fs');
+
+/**
+ * Module variables.
+ * @private
+ */
+
+var dirname = path.dirname;
+var basename = path.basename;
+var extname = path.extname;
+var join = path.join;
+var resolve = path.resolve;
+
+/**
+ * Module exports.
+ * @public
+ */
+
+module.exports = View;
+
+/**
+ * Initialize a new `View` with the given `name`.
+ *
+ * Options:
+ *
+ *   - `defaultEngine` the default template engine name
+ *   - `engines` template engine require() cache
+ *   - `root` root path for view lookup
+ *
+ * @param {string} name
+ * @param {object} options
+ * @public
+ */
+
+function View(name, options) {
+  var opts = options || {};
+
+  this.defaultEngine = opts.defaultEngine;
+  this.ext = extname(name);
+  this.name = name;
+  this.root = opts.root;
+
+  if (!this.ext && !this.defaultEngine) {
+    throw new Error('No default engine was specified and no extension was provided.');
+  }
+
+  var fileName = name;
+
+  if (!this.ext) {
+    // get extension from default engine name
+    this.ext = this.defaultEngine[0] !== '.'
+      ? '.' + this.defaultEngine
+      : this.defaultEngine;
+
+    fileName += this.ext;
+  }
+
+  if (!opts.engines[this.ext]) {
+    // load engine
+    var mod = this.ext.slice(1)
+    debug('require "%s"', mod)
+
+    // default engine export
+    var fn = require(mod).__express
+
+    if (typeof fn !== 'function') {
+      throw new Error('Module "' + mod + '" does not provide a view engine.')
+    }
+
+    opts.engines[this.ext] = fn
+  }
+
+  // store loaded engine
+  this.engine = opts.engines[this.ext];
+
+  // lookup path
+  this.path = this.lookup(fileName);
+}
+
+/**
+ * Lookup view by the given `name`
+ *
+ * @param {string} name
+ * @private
+ */
+
+View.prototype.lookup = function lookup(name) {
+  var path;
+  var roots = [].concat(this.root);
+
+  debug('lookup "%s"', name);
+
+  for (var i = 0; i < roots.length && !path; i++) {
+    var root = roots[i];
+
+    // resolve the path
+    var loc = resolve(root, name);
+    var dir = dirname(loc);
+    var file = basename(loc);
+
+    // resolve the file
+    path = this.resolve(dir, file);
+  }
+
+  return path;
+};
+
+/**
+ * Render with the given options.
+ *
+ * @param {object} options
+ * @param {function} callback
+ * @private
+ */
+
+View.prototype.render = function render(options, callback) {
+  var sync = true;
+
+  debug('render "%s"', this.path);
+
+  // render, normalizing sync callbacks
+  this.engine(this.path, options, function onRender() {
+    if (!sync) {
+      return callback.apply(this, arguments);
+    }
+
+    // copy arguments
+    var args = new Array(arguments.length);
+    var cntx = this;
+
+    for (var i = 0; i < arguments.length; i++) {
+      args[i] = arguments[i];
+    }
+
+    // force callback to be async
+    return process.nextTick(function renderTick() {
+      return callback.apply(cntx, args);
+    });
+  });
+
+  sync = false;
+};
+
+/**
+ * Resolve the file within the given directory.
+ *
+ * @param {string} dir
+ * @param {string} file
+ * @private
+ */
+
+View.prototype.resolve = function resolve(dir, file) {
+  var ext = this.ext;
+
+  // <path>.<ext>
+  var path = join(dir, file);
+  var stat = tryStat(path);
+
+  if (stat && stat.isFile()) {
+    return path;
+  }
+
+  // <path>/index.<ext>
+  path = join(dir, basename(file, ext), 'index' + ext);
+  stat = tryStat(path);
+
+  if (stat && stat.isFile()) {
+    return path;
+  }
+};
+
+/**
+ * Return a stat, maybe.
+ *
+ * @param {string} path
+ * @return {fs.Stats}
+ * @private
+ */
+
+function tryStat(path) {
+  debug('stat "%s"', path);
+
+  try {
+    return fs.statSync(path);
+  } catch (e) {
+    return undefined;
+  }
+}
diff --git a/backend/node_modules/express/package.json b/backend/node_modules/express/package.json
new file mode 100644
index 0000000..bdcd25e
--- /dev/null
+++ b/backend/node_modules/express/package.json
@@ -0,0 +1,98 @@
+{
+  "name": "express",
+  "description": "Fast, unopinionated, minimalist web framework",
+  "version": "5.1.0",
+  "author": "TJ Holowaychuk <tj@vision-media.ca>",
+  "contributors": [
+    "Aaron Heckmann <aaron.heckmann+github@gmail.com>",
+    "Ciaran Jessup <ciaranj@gmail.com>",
+    "Douglas Christopher Wilson <doug@somethingdoug.com>",
+    "Guillermo Rauch <rauchg@gmail.com>",
+    "Jonathan Ong <me@jongleberry.com>",
+    "Roman Shtylman <shtylman+expressjs@gmail.com>",
+    "Young Jae Sim <hanul@hanul.me>"
+  ],
+  "license": "MIT",
+  "repository": "expressjs/express",
+  "homepage": "https://expressjs.com/",
+  "funding": {
+    "type": "opencollective",
+    "url": "https://opencollective.com/express"
+  },
+  "keywords": [
+    "express",
+    "framework",
+    "sinatra",
+    "web",
+    "http",
+    "rest",
+    "restful",
+    "router",
+    "app",
+    "api"
+  ],
+  "dependencies": {
+    "accepts": "^2.0.0",
+    "body-parser": "^2.2.0",
+    "content-disposition": "^1.0.0",
+    "content-type": "^1.0.5",
+    "cookie": "^0.7.1",
+    "cookie-signature": "^1.2.1",
+    "debug": "^4.4.0",
+    "encodeurl": "^2.0.0",
+    "escape-html": "^1.0.3",
+    "etag": "^1.8.1",
+    "finalhandler": "^2.1.0",
+    "fresh": "^2.0.0",
+    "http-errors": "^2.0.0",
+    "merge-descriptors": "^2.0.0",
+    "mime-types": "^3.0.0",
+    "on-finished": "^2.4.1",
+    "once": "^1.4.0",
+    "parseurl": "^1.3.3",
+    "proxy-addr": "^2.0.7",
+    "qs": "^6.14.0",
+    "range-parser": "^1.2.1",
+    "router": "^2.2.0",
+    "send": "^1.1.0",
+    "serve-static": "^2.2.0",
+    "statuses": "^2.0.1",
+    "type-is": "^2.0.1",
+    "vary": "^1.1.2"
+  },
+  "devDependencies": {
+    "after": "0.8.2",
+    "connect-redis": "^8.0.1",
+    "cookie-parser": "1.4.7",
+    "cookie-session": "2.1.0",
+    "ejs": "^3.1.10",
+    "eslint": "8.47.0",
+    "express-session": "^1.18.1",
+    "hbs": "4.2.0",
+    "marked": "^15.0.3",
+    "method-override": "3.0.0",
+    "mocha": "^10.7.3",
+    "morgan": "1.10.0",
+    "nyc": "^17.1.0",
+    "pbkdf2-password": "1.2.1",
+    "supertest": "^6.3.0",
+    "vhost": "~3.0.2"
+  },
+  "engines": {
+    "node": ">= 18"
+  },
+  "files": [
+    "LICENSE",
+    "History.md",
+    "Readme.md",
+    "index.js",
+    "lib/"
+  ],
+  "scripts": {
+    "lint": "eslint .",
+    "test": "mocha --require test/support/env --reporter spec --check-leaks test/ test/acceptance/",
+    "test-ci": "nyc --exclude examples --exclude test --exclude benchmarks --reporter=lcovonly --reporter=text npm test",
+    "test-cov": "nyc --exclude examples --exclude test --exclude benchmarks --reporter=html --reporter=text npm test",
+    "test-tap": "mocha --require test/support/env --reporter tap --check-leaks test/ test/acceptance/"
+  }
+}
diff --git a/backend/node_modules/finalhandler/HISTORY.md b/backend/node_modules/finalhandler/HISTORY.md
new file mode 100644
index 0000000..4bc1850
--- /dev/null
+++ b/backend/node_modules/finalhandler/HISTORY.md
@@ -0,0 +1,233 @@
+v2.1.0 / 2025-03-05
+==================
+
+  * deps: 
+    * use caret notation for dependency versions
+    * encodeurl@^2.0.0
+    * debug@^4.4.0
+  * remove `ServerResponse.headersSent` support check
+  * remove setImmediate support check
+  * update test dependencies
+  * remove unnecessary devDependency `safe-buffer`
+  * remove `unpipe` package and use native `unpipe()` method
+  * remove unnecessary devDependency `readable-stream`
+  * refactor: use object spread to copy error headers
+  * refactor: use replaceAll instead of replace with a regex
+  * refactor: replace setHeaders function with optimized inline header setting
+
+v2.0.0 / 2024-09-02
+==================
+
+  * drop support for node <18
+  * ignore status message for HTTP/2 (#53) 
+
+v1.3.1 / 2024-09-11
+==================
+
+  * deps: encodeurl@~2.0.0
+
+v1.3.0 / 2024-09-03
+==================
+
+  * ignore status message for HTTP/2 (#53)
+
+v1.2.1 / 2024-09-02
+==================
+
+  * Gracefully handle when handling an error and socket is null
+
+1.2.0 / 2022-03-22
+==================
+
+  * Remove set content headers that break response
+  * deps: on-finished@2.4.1
+  * deps: statuses@2.0.1
+    - Rename `425 Unordered Collection` to standard `425 Too Early`
+
+1.1.2 / 2019-05-09
+==================
+
+  * Set stricter `Content-Security-Policy` header
+  * deps: parseurl@~1.3.3
+  * deps: statuses@~1.5.0
+
+1.1.1 / 2018-03-06
+==================
+
+  * Fix 404 output for bad / missing pathnames
+  * deps: encodeurl@~1.0.2
+    - Fix encoding `%` as last character
+  * deps: statuses@~1.4.0
+
+1.1.0 / 2017-09-24
+==================
+
+  * Use `res.headersSent` when available
+
+1.0.6 / 2017-09-22
+==================
+
+  * deps: debug@2.6.9
+
+1.0.5 / 2017-09-15
+==================
+
+  * deps: parseurl@~1.3.2
+    - perf: reduce overhead for full URLs
+    - perf: unroll the "fast-path" `RegExp`
+
+1.0.4 / 2017-08-03
+==================
+
+  * deps: debug@2.6.8
+
+1.0.3 / 2017-05-16
+==================
+
+  * deps: debug@2.6.7
+    - deps: ms@2.0.0
+
+1.0.2 / 2017-04-22
+==================
+
+  * deps: debug@2.6.4
+    - deps: ms@0.7.3
+
+1.0.1 / 2017-03-21
+==================
+
+  * Fix missing `</html>` in HTML document
+  * deps: debug@2.6.3
+    - Fix: `DEBUG_MAX_ARRAY_LENGTH`
+
+1.0.0 / 2017-02-15
+==================
+
+  * Fix exception when `err` cannot be converted to a string
+  * Fully URL-encode the pathname in the 404 message
+  * Only include the pathname in the 404 message
+  * Send complete HTML document
+  * Set `Content-Security-Policy: default-src 'self'` header
+  * deps: debug@2.6.1
+    - Allow colors in workers
+    - Deprecated `DEBUG_FD` environment variable set to `3` or higher
+    - Fix error when running under React Native
+    - Use same color for same namespace
+    - deps: ms@0.7.2
+
+0.5.1 / 2016-11-12
+==================
+
+  * Fix exception when `err.headers` is not an object
+  * deps: statuses@~1.3.1
+  * perf: hoist regular expressions
+  * perf: remove duplicate validation path
+
+0.5.0 / 2016-06-15
+==================
+
+  * Change invalid or non-numeric status code to 500
+  * Overwrite status message to match set status code
+  * Prefer `err.statusCode` if `err.status` is invalid
+  * Set response headers from `err.headers` object
+  * Use `statuses` instead of `http` module for status messages
+    - Includes all defined status messages
+
+0.4.1 / 2015-12-02
+==================
+
+  * deps: escape-html@~1.0.3
+    - perf: enable strict mode
+    - perf: optimize string replacement
+    - perf: use faster string coercion
+
+0.4.0 / 2015-06-14
+==================
+
+  * Fix a false-positive when unpiping in Node.js 0.8
+  * Support `statusCode` property on `Error` objects
+  * Use `unpipe` module for unpiping requests
+  * deps: escape-html@1.0.2
+  * deps: on-finished@~2.3.0
+    - Add defined behavior for HTTP `CONNECT` requests
+    - Add defined behavior for HTTP `Upgrade` requests
+    - deps: ee-first@1.1.1
+  * perf: enable strict mode
+  * perf: remove argument reassignment
+
+0.3.6 / 2015-05-11
+==================
+
+  * deps: debug@~2.2.0
+    - deps: ms@0.7.1
+
+0.3.5 / 2015-04-22
+==================
+
+  * deps: on-finished@~2.2.1
+    - Fix `isFinished(req)` when data buffered
+
+0.3.4 / 2015-03-15
+==================
+
+  * deps: debug@~2.1.3
+    - Fix high intensity foreground color for bold
+    - deps: ms@0.7.0
+
+0.3.3 / 2015-01-01
+==================
+
+  * deps: debug@~2.1.1
+  * deps: on-finished@~2.2.0
+
+0.3.2 / 2014-10-22
+==================
+
+  * deps: on-finished@~2.1.1
+    - Fix handling of pipelined requests
+
+0.3.1 / 2014-10-16
+==================
+
+  * deps: debug@~2.1.0
+    - Implement `DEBUG_FD` env variable support
+
+0.3.0 / 2014-09-17
+==================
+
+  * Terminate in progress response only on error
+  * Use `on-finished` to determine request status
+
+0.2.0 / 2014-09-03
+==================
+
+  * Set `X-Content-Type-Options: nosniff` header
+  * deps: debug@~2.0.0
+
+0.1.0 / 2014-07-16
+==================
+
+  * Respond after request fully read
+    - prevents hung responses and socket hang ups
+  * deps: debug@1.0.4
+
+0.0.3 / 2014-07-11
+==================
+
+  * deps: debug@1.0.3
+    - Add support for multiple wildcards in namespaces
+
+0.0.2 / 2014-06-19
+==================
+
+  * Handle invalid status codes
+
+0.0.1 / 2014-06-05
+==================
+
+  * deps: debug@1.0.2
+
+0.0.0 / 2014-06-05
+==================
+
+  * Extracted from connect/express
diff --git a/backend/node_modules/finalhandler/LICENSE b/backend/node_modules/finalhandler/LICENSE
new file mode 100644
index 0000000..6022106
--- /dev/null
+++ b/backend/node_modules/finalhandler/LICENSE
@@ -0,0 +1,22 @@
+(The MIT License)
+
+Copyright (c) 2014-2022 Douglas Christopher Wilson <doug@somethingdoug.com>
+
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of this software and associated documentation files (the
+'Software'), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sublicense, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to
+the following conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
diff --git a/backend/node_modules/finalhandler/README.md b/backend/node_modules/finalhandler/README.md
new file mode 100644
index 0000000..6244a13
--- /dev/null
+++ b/backend/node_modules/finalhandler/README.md
@@ -0,0 +1,147 @@
+# finalhandler
+
+[![NPM Version][npm-image]][npm-url]
+[![NPM Downloads][downloads-image]][downloads-url]
+[![Node.js Version][node-image]][node-url]
+[![Build Status][github-actions-ci-image]][github-actions-ci-url]
+[![Test Coverage][coveralls-image]][coveralls-url]
+
+Node.js function to invoke as the final step to respond to HTTP request.
+
+## Installation
+
+This is a [Node.js](https://nodejs.org/en/) module available through the
+[npm registry](https://www.npmjs.com/). Installation is done using the
+[`npm install` command](https://docs.npmjs.com/getting-started/installing-npm-packages-locally):
+
+```sh
+$ npm install finalhandler
+```
+
+## API
+
+```js
+var finalhandler = require('finalhandler')
+```
+
+### finalhandler(req, res, [options])
+
+Returns function to be invoked as the final step for the given `req` and `res`.
+This function is to be invoked as `fn(err)`. If `err` is falsy, the handler will
+write out a 404 response to the `res`. If it is truthy, an error response will
+be written out to the `res` or `res` will be terminated if a response has already
+started.
+
+When an error is written, the following information is added to the response:
+
+  * The `res.statusCode` is set from `err.status` (or `err.statusCode`). If
+    this value is outside the 4xx or 5xx range, it will be set to 500.
+  * The `res.statusMessage` is set according to the status code.
+  * The body will be the HTML of the status code message if `env` is
+    `'production'`, otherwise will be `err.stack`.
+  * Any headers specified in an `err.headers` object.
+
+The final handler will also unpipe anything from `req` when it is invoked.
+
+#### options.env
+
+By default, the environment is determined by `NODE_ENV` variable, but it can be
+overridden by this option.
+
+#### options.onerror
+
+Provide a function to be called with the `err` when it exists. Can be used for
+writing errors to a central location without excessive function generation. Called
+as `onerror(err, req, res)`.
+
+## Examples
+
+### always 404
+
+```js
+var finalhandler = require('finalhandler')
+var http = require('http')
+
+var server = http.createServer(function (req, res) {
+  var done = finalhandler(req, res)
+  done()
+})
+
+server.listen(3000)
+```
+
+### perform simple action
+
+```js
+var finalhandler = require('finalhandler')
+var fs = require('fs')
+var http = require('http')
+
+var server = http.createServer(function (req, res) {
+  var done = finalhandler(req, res)
+
+  fs.readFile('index.html', function (err, buf) {
+    if (err) return done(err)
+    res.setHeader('Content-Type', 'text/html')
+    res.end(buf)
+  })
+})
+
+server.listen(3000)
+```
+
+### use with middleware-style functions
+
+```js
+var finalhandler = require('finalhandler')
+var http = require('http')
+var serveStatic = require('serve-static')
+
+var serve = serveStatic('public')
+
+var server = http.createServer(function (req, res) {
+  var done = finalhandler(req, res)
+  serve(req, res, done)
+})
+
+server.listen(3000)
+```
+
+### keep log of all errors
+
+```js
+var finalhandler = require('finalhandler')
+var fs = require('fs')
+var http = require('http')
+
+var server = http.createServer(function (req, res) {
+  var done = finalhandler(req, res, { onerror: logerror })
+
+  fs.readFile('index.html', function (err, buf) {
+    if (err) return done(err)
+    res.setHeader('Content-Type', 'text/html')
+    res.end(buf)
+  })
+})
+
+server.listen(3000)
+
+function logerror (err) {
+  console.error(err.stack || err.toString())
+}
+```
+
+## License
+
+[MIT](LICENSE)
+
+[npm-image]: https://img.shields.io/npm/v/finalhandler.svg
+[npm-url]: https://npmjs.org/package/finalhandler
+[node-image]: https://img.shields.io/node/v/finalhandler.svg
+[node-url]: https://nodejs.org/en/download
+[coveralls-image]: https://img.shields.io/coveralls/pillarjs/finalhandler.svg
+[coveralls-url]: https://coveralls.io/r/pillarjs/finalhandler?branch=master
+[downloads-image]: https://img.shields.io/npm/dm/finalhandler.svg
+[downloads-url]: https://npmjs.org/package/finalhandler
+[github-actions-ci-image]: https://github.com/pillarjs/finalhandler/actions/workflows/ci.yml/badge.svg
+[github-actions-ci-url]: https://github.com/pillarjs/finalhandler/actions/workflows/ci.yml
diff --git a/backend/node_modules/finalhandler/index.js b/backend/node_modules/finalhandler/index.js
new file mode 100644
index 0000000..bf15e48
--- /dev/null
+++ b/backend/node_modules/finalhandler/index.js
@@ -0,0 +1,293 @@
+/*!
+ * finalhandler
+ * Copyright(c) 2014-2022 Douglas Christopher Wilson
+ * MIT Licensed
+ */
+
+'use strict'
+
+/**
+ * Module dependencies.
+ * @private
+ */
+
+var debug = require('debug')('finalhandler')
+var encodeUrl = require('encodeurl')
+var escapeHtml = require('escape-html')
+var onFinished = require('on-finished')
+var parseUrl = require('parseurl')
+var statuses = require('statuses')
+
+/**
+ * Module variables.
+ * @private
+ */
+
+var isFinished = onFinished.isFinished
+
+/**
+ * Create a minimal HTML document.
+ *
+ * @param {string} message
+ * @private
+ */
+
+function createHtmlDocument (message) {
+  var body = escapeHtml(message)
+    .replaceAll('\n', '<br>')
+    .replaceAll('  ', ' &nbsp;')
+
+  return '<!DOCTYPE html>\n' +
+    '<html lang="en">\n' +
+    '<head>\n' +
+    '<meta charset="utf-8">\n' +
+    '<title>Error</title>\n' +
+    '</head>\n' +
+    '<body>\n' +
+    '<pre>' + body + '</pre>\n' +
+    '</body>\n' +
+    '</html>\n'
+}
+
+/**
+ * Module exports.
+ * @public
+ */
+
+module.exports = finalhandler
+
+/**
+ * Create a function to handle the final response.
+ *
+ * @param {Request} req
+ * @param {Response} res
+ * @param {Object} [options]
+ * @return {Function}
+ * @public
+ */
+
+function finalhandler (req, res, options) {
+  var opts = options || {}
+
+  // get environment
+  var env = opts.env || process.env.NODE_ENV || 'development'
+
+  // get error callback
+  var onerror = opts.onerror
+
+  return function (err) {
+    var headers
+    var msg
+    var status
+
+    // ignore 404 on in-flight response
+    if (!err && res.headersSent) {
+      debug('cannot 404 after headers sent')
+      return
+    }
+
+    // unhandled error
+    if (err) {
+      // respect status code from error
+      status = getErrorStatusCode(err)
+
+      if (status === undefined) {
+        // fallback to status code on response
+        status = getResponseStatusCode(res)
+      } else {
+        // respect headers from error
+        headers = getErrorHeaders(err)
+      }
+
+      // get error message
+      msg = getErrorMessage(err, status, env)
+    } else {
+      // not found
+      status = 404
+      msg = 'Cannot ' + req.method + ' ' + encodeUrl(getResourceName(req))
+    }
+
+    debug('default %s', status)
+
+    // schedule onerror callback
+    if (err && onerror) {
+      setImmediate(onerror, err, req, res)
+    }
+
+    // cannot actually respond
+    if (res.headersSent) {
+      debug('cannot %d after headers sent', status)
+      if (req.socket) {
+        req.socket.destroy()
+      }
+      return
+    }
+
+    // send response
+    send(req, res, status, headers, msg)
+  }
+}
+
+/**
+ * Get headers from Error object.
+ *
+ * @param {Error} err
+ * @return {object}
+ * @private
+ */
+
+function getErrorHeaders (err) {
+  if (!err.headers || typeof err.headers !== 'object') {
+    return undefined
+  }
+
+  return { ...err.headers }
+}
+
+/**
+ * Get message from Error object, fallback to status message.
+ *
+ * @param {Error} err
+ * @param {number} status
+ * @param {string} env
+ * @return {string}
+ * @private
+ */
+
+function getErrorMessage (err, status, env) {
+  var msg
+
+  if (env !== 'production') {
+    // use err.stack, which typically includes err.message
+    msg = err.stack
+
+    // fallback to err.toString() when possible
+    if (!msg && typeof err.toString === 'function') {
+      msg = err.toString()
+    }
+  }
+
+  return msg || statuses.message[status]
+}
+
+/**
+ * Get status code from Error object.
+ *
+ * @param {Error} err
+ * @return {number}
+ * @private
+ */
+
+function getErrorStatusCode (err) {
+  // check err.status
+  if (typeof err.status === 'number' && err.status >= 400 && err.status < 600) {
+    return err.status
+  }
+
+  // check err.statusCode
+  if (typeof err.statusCode === 'number' && err.statusCode >= 400 && err.statusCode < 600) {
+    return err.statusCode
+  }
+
+  return undefined
+}
+
+/**
+ * Get resource name for the request.
+ *
+ * This is typically just the original pathname of the request
+ * but will fallback to "resource" is that cannot be determined.
+ *
+ * @param {IncomingMessage} req
+ * @return {string}
+ * @private
+ */
+
+function getResourceName (req) {
+  try {
+    return parseUrl.original(req).pathname
+  } catch (e) {
+    return 'resource'
+  }
+}
+
+/**
+ * Get status code from response.
+ *
+ * @param {OutgoingMessage} res
+ * @return {number}
+ * @private
+ */
+
+function getResponseStatusCode (res) {
+  var status = res.statusCode
+
+  // default status code to 500 if outside valid range
+  if (typeof status !== 'number' || status < 400 || status > 599) {
+    status = 500
+  }
+
+  return status
+}
+
+/**
+ * Send response.
+ *
+ * @param {IncomingMessage} req
+ * @param {OutgoingMessage} res
+ * @param {number} status
+ * @param {object} headers
+ * @param {string} message
+ * @private
+ */
+
+function send (req, res, status, headers, message) {
+  function write () {
+    // response body
+    var body = createHtmlDocument(message)
+
+    // response status
+    res.statusCode = status
+
+    if (req.httpVersionMajor < 2) {
+      res.statusMessage = statuses.message[status]
+    }
+
+    // remove any content headers
+    res.removeHeader('Content-Encoding')
+    res.removeHeader('Content-Language')
+    res.removeHeader('Content-Range')
+
+    // response headers
+    for (const [key, value] of Object.entries(headers ?? {})) {
+      res.setHeader(key, value)
+    }
+
+    // security headers
+    res.setHeader('Content-Security-Policy', "default-src 'none'")
+    res.setHeader('X-Content-Type-Options', 'nosniff')
+
+    // standard headers
+    res.setHeader('Content-Type', 'text/html; charset=utf-8')
+    res.setHeader('Content-Length', Buffer.byteLength(body, 'utf8'))
+
+    if (req.method === 'HEAD') {
+      res.end()
+      return
+    }
+
+    res.end(body, 'utf8')
+  }
+
+  if (isFinished(req)) {
+    write()
+    return
+  }
+
+  // unpipe everything from the request
+  req.unpipe()
+
+  // flush the request
+  onFinished(req, write)
+  req.resume()
+}
diff --git a/backend/node_modules/finalhandler/package.json b/backend/node_modules/finalhandler/package.json
new file mode 100644
index 0000000..992b306
--- /dev/null
+++ b/backend/node_modules/finalhandler/package.json
@@ -0,0 +1,43 @@
+{
+  "name": "finalhandler",
+  "description": "Node.js final http responder",
+  "version": "2.1.0",
+  "author": "Douglas Christopher Wilson <doug@somethingdoug.com>",
+  "license": "MIT",
+  "repository": "pillarjs/finalhandler",
+  "dependencies": {
+    "debug": "^4.4.0",
+    "encodeurl": "^2.0.0",
+    "escape-html": "^1.0.3",
+    "on-finished": "^2.4.1",
+    "parseurl": "^1.3.3",
+    "statuses": "^2.0.1"
+  },
+  "devDependencies": {
+    "eslint": "7.32.0",
+    "eslint-config-standard": "14.1.1",
+    "eslint-plugin-import": "2.26.0",
+    "eslint-plugin-markdown": "2.2.1",
+    "eslint-plugin-node": "11.1.0",
+    "eslint-plugin-promise": "5.2.0",
+    "eslint-plugin-standard": "4.1.0",
+    "mocha": "^11.0.1",
+    "nyc": "^17.1.0",
+    "supertest": "^7.0.0"
+  },
+  "files": [
+    "LICENSE",
+    "HISTORY.md",
+    "index.js"
+  ],
+  "engines": {
+    "node": ">= 0.8"
+  },
+  "scripts": {
+    "lint": "eslint .",
+    "test": "mocha --reporter spec --check-leaks test/",
+    "test-ci": "nyc --reporter=lcovonly --reporter=text npm test",
+    "test-cov": "nyc --reporter=html --reporter=text npm test",
+    "test-inspect": "mocha --reporter spec --inspect --inspect-brk test/"
+  }
+}
diff --git a/backend/node_modules/forwarded/HISTORY.md b/backend/node_modules/forwarded/HISTORY.md
new file mode 100644
index 0000000..381e6aa
--- /dev/null
+++ b/backend/node_modules/forwarded/HISTORY.md
@@ -0,0 +1,21 @@
+0.2.0 / 2021-05-31
+==================
+
+  * Use `req.socket` over deprecated `req.connection`
+
+0.1.2 / 2017-09-14
+==================
+
+  * perf: improve header parsing
+  * perf: reduce overhead when no `X-Forwarded-For` header
+
+0.1.1 / 2017-09-10
+==================
+
+  * Fix trimming leading / trailing OWS
+  * perf: hoist regular expression
+
+0.1.0 / 2014-09-21
+==================
+
+  * Initial release
diff --git a/backend/node_modules/forwarded/LICENSE b/backend/node_modules/forwarded/LICENSE
new file mode 100644
index 0000000..84441fb
--- /dev/null
+++ b/backend/node_modules/forwarded/LICENSE
@@ -0,0 +1,22 @@
+(The MIT License)
+
+Copyright (c) 2014-2017 Douglas Christopher Wilson
+
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of this software and associated documentation files (the
+'Software'), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sublicense, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to
+the following conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
diff --git a/backend/node_modules/forwarded/README.md b/backend/node_modules/forwarded/README.md
new file mode 100644
index 0000000..fdd220b
--- /dev/null
+++ b/backend/node_modules/forwarded/README.md
@@ -0,0 +1,57 @@
+# forwarded
+
+[![NPM Version][npm-image]][npm-url]
+[![NPM Downloads][downloads-image]][downloads-url]
+[![Node.js Version][node-version-image]][node-version-url]
+[![Build Status][ci-image]][ci-url]
+[![Test Coverage][coveralls-image]][coveralls-url]
+
+Parse HTTP X-Forwarded-For header
+
+## Installation
+
+This is a [Node.js](https://nodejs.org/en/) module available through the
+[npm registry](https://www.npmjs.com/). Installation is done using the
+[`npm install` command](https://docs.npmjs.com/getting-started/installing-npm-packages-locally):
+
+```sh
+$ npm install forwarded
+```
+
+## API
+
+```js
+var forwarded = require('forwarded')
+```
+
+### forwarded(req)
+
+```js
+var addresses = forwarded(req)
+```
+
+Parse the `X-Forwarded-For` header from the request. Returns an array
+of the addresses, including the socket address for the `req`, in reverse
+order (i.e. index `0` is the socket address and the last index is the
+furthest address, typically the end-user).
+
+## Testing
+
+```sh
+$ npm test
+```
+
+## License
+
+[MIT](LICENSE)
+
+[ci-image]: https://badgen.net/github/checks/jshttp/forwarded/master?label=ci
+[ci-url]: https://github.com/jshttp/forwarded/actions?query=workflow%3Aci
+[npm-image]: https://img.shields.io/npm/v/forwarded.svg
+[npm-url]: https://npmjs.org/package/forwarded
+[node-version-image]: https://img.shields.io/node/v/forwarded.svg
+[node-version-url]: https://nodejs.org/en/download/
+[coveralls-image]: https://img.shields.io/coveralls/jshttp/forwarded/master.svg
+[coveralls-url]: https://coveralls.io/r/jshttp/forwarded?branch=master
+[downloads-image]: https://img.shields.io/npm/dm/forwarded.svg
+[downloads-url]: https://npmjs.org/package/forwarded
diff --git a/backend/node_modules/forwarded/index.js b/backend/node_modules/forwarded/index.js
new file mode 100644
index 0000000..b2b6bdd
--- /dev/null
+++ b/backend/node_modules/forwarded/index.js
@@ -0,0 +1,90 @@
+/*!
+ * forwarded
+ * Copyright(c) 2014-2017 Douglas Christopher Wilson
+ * MIT Licensed
+ */
+
+'use strict'
+
+/**
+ * Module exports.
+ * @public
+ */
+
+module.exports = forwarded
+
+/**
+ * Get all addresses in the request, using the `X-Forwarded-For` header.
+ *
+ * @param {object} req
+ * @return {array}
+ * @public
+ */
+
+function forwarded (req) {
+  if (!req) {
+    throw new TypeError('argument req is required')
+  }
+
+  // simple header parsing
+  var proxyAddrs = parse(req.headers['x-forwarded-for'] || '')
+  var socketAddr = getSocketAddr(req)
+  var addrs = [socketAddr].concat(proxyAddrs)
+
+  // return all addresses
+  return addrs
+}
+
+/**
+ * Get the socket address for a request.
+ *
+ * @param {object} req
+ * @return {string}
+ * @private
+ */
+
+function getSocketAddr (req) {
+  return req.socket
+    ? req.socket.remoteAddress
+    : req.connection.remoteAddress
+}
+
+/**
+ * Parse the X-Forwarded-For header.
+ *
+ * @param {string} header
+ * @private
+ */
+
+function parse (header) {
+  var end = header.length
+  var list = []
+  var start = header.length
+
+  // gather addresses, backwards
+  for (var i = header.length - 1; i >= 0; i--) {
+    switch (header.charCodeAt(i)) {
+      case 0x20: /*   */
+        if (start === end) {
+          start = end = i
+        }
+        break
+      case 0x2c: /* , */
+        if (start !== end) {
+          list.push(header.substring(start, end))
+        }
+        start = end = i
+        break
+      default:
+        start = i
+        break
+    }
+  }
+
+  // final address
+  if (start !== end) {
+    list.push(header.substring(start, end))
+  }
+
+  return list
+}
diff --git a/backend/node_modules/forwarded/package.json b/backend/node_modules/forwarded/package.json
new file mode 100644
index 0000000..bf9c7d6
--- /dev/null
+++ b/backend/node_modules/forwarded/package.json
@@ -0,0 +1,45 @@
+{
+  "name": "forwarded",
+  "description": "Parse HTTP X-Forwarded-For header",
+  "version": "0.2.0",
+  "contributors": [
+    "Douglas Christopher Wilson <doug@somethingdoug.com>"
+  ],
+  "license": "MIT",
+  "keywords": [
+    "x-forwarded-for",
+    "http",
+    "req"
+  ],
+  "repository": "jshttp/forwarded",
+  "devDependencies": {
+    "beautify-benchmark": "0.2.4",
+    "benchmark": "2.1.4",
+    "deep-equal": "1.0.1",
+    "eslint": "7.27.0",
+    "eslint-config-standard": "14.1.1",
+    "eslint-plugin-import": "2.23.4",
+    "eslint-plugin-node": "11.1.0",
+    "eslint-plugin-promise": "4.3.1",
+    "eslint-plugin-standard": "4.1.0",
+    "mocha": "8.4.0",
+    "nyc": "15.1.0"
+  },
+  "files": [
+    "LICENSE",
+    "HISTORY.md",
+    "README.md",
+    "index.js"
+  ],
+  "engines": {
+    "node": ">= 0.6"
+  },
+  "scripts": {
+    "bench": "node benchmark/index.js",
+    "lint": "eslint .",
+    "test": "mocha --reporter spec --bail --check-leaks test/",
+    "test-ci": "nyc --reporter=lcov --reporter=text npm test",
+    "test-cov": "nyc --reporter=html --reporter=text npm test",
+    "version": "node scripts/version-history.js && git add HISTORY.md"
+  }
+}
diff --git a/backend/node_modules/fresh/HISTORY.md b/backend/node_modules/fresh/HISTORY.md
new file mode 100644
index 0000000..fd3888a
--- /dev/null
+++ b/backend/node_modules/fresh/HISTORY.md
@@ -0,0 +1,80 @@
+2.0.0 - 2024-09-04
+==========
+ * Drop support for Node.js <18
+
+1.0.0 - 2024-09-04
+==========
+
+  * Drop support for Node.js below 0.8
+  * Fix: Ignore `If-Modified-Since` in the presence of `If-None-Match`, according to [spec](https://www.rfc-editor.org/rfc/rfc9110.html#section-13.1.3-5). Fixes [#35](https://github.com/jshttp/fresh/issues/35)
+
+0.5.2 / 2017-09-13
+==================
+
+  * Fix regression matching multiple ETags in `If-None-Match`
+  * perf: improve `If-None-Match` token parsing
+
+0.5.1 / 2017-09-11
+==================
+
+  * Fix handling of modified headers with invalid dates
+  * perf: improve ETag match loop
+
+0.5.0 / 2017-02-21
+==================
+
+  * Fix incorrect result when `If-None-Match` has both `*` and ETags
+  * Fix weak `ETag` matching to match spec
+  * perf: delay reading header values until needed
+  * perf: skip checking modified time if ETag check failed
+  * perf: skip parsing `If-None-Match` when no `ETag` header
+  * perf: use `Date.parse` instead of `new Date`
+
+0.4.0 / 2017-02-05
+==================
+
+  * Fix false detection of `no-cache` request directive
+  * perf: enable strict mode
+  * perf: hoist regular expressions
+  * perf: remove duplicate conditional
+  * perf: remove unnecessary boolean coercions
+
+0.3.0 / 2015-05-12
+==================
+
+  * Add weak `ETag` matching support
+
+0.2.4 / 2014-09-07
+==================
+
+  * Support Node.js 0.6
+
+0.2.3 / 2014-09-07
+==================
+
+  * Move repository to jshttp
+
+0.2.2 / 2014-02-19
+==================
+
+  * Revert "Fix for blank page on Safari reload"
+
+0.2.1 / 2014-01-29
+==================
+
+  * Fix for blank page on Safari reload
+
+0.2.0 / 2013-08-11
+==================
+
+  * Return stale for `Cache-Control: no-cache`
+
+0.1.0 / 2012-06-15
+==================
+
+  * Add `If-None-Match: *` support
+
+0.0.1 / 2012-06-10
+==================
+
+  * Initial release
diff --git a/backend/node_modules/fresh/LICENSE b/backend/node_modules/fresh/LICENSE
new file mode 100644
index 0000000..1434ade
--- /dev/null
+++ b/backend/node_modules/fresh/LICENSE
@@ -0,0 +1,23 @@
+(The MIT License)
+
+Copyright (c) 2012 TJ Holowaychuk <tj@vision-media.ca>
+Copyright (c) 2016-2017 Douglas Christopher Wilson <doug@somethingdoug.com>
+
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of this software and associated documentation files (the
+'Software'), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sublicense, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to
+the following conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
diff --git a/backend/node_modules/fresh/README.md b/backend/node_modules/fresh/README.md
new file mode 100644
index 0000000..fd79c5b
--- /dev/null
+++ b/backend/node_modules/fresh/README.md
@@ -0,0 +1,117 @@
+# fresh
+
+[![NPM Version][npm-image]][npm-url]
+[![NPM Downloads][downloads-image]][downloads-url]
+[![Node.js Version][node-version-image]][node-version-url]
+[![Build Status][ci-image]][ci-url]
+[![Test Coverage][coveralls-image]][coveralls-url]
+
+HTTP response freshness testing
+
+## Installation
+
+This is a [Node.js](https://nodejs.org/en/) module available through the
+[npm registry](https://www.npmjs.com/). Installation is done using the
+[`npm install` command](https://docs.npmjs.com/getting-started/installing-npm-packages-locally):
+
+```
+$ npm install fresh
+```
+
+## API
+
+```js
+var fresh = require('fresh')
+```
+
+### fresh(reqHeaders, resHeaders)
+
+Check freshness of the response using request and response headers.
+
+When the response is still "fresh" in the client's cache `true` is
+returned, otherwise `false` is returned to indicate that the client
+cache is now stale and the full response should be sent.
+
+When a client sends the `Cache-Control: no-cache` request header to
+indicate an end-to-end reload request, this module will return `false`
+to make handling these requests transparent.
+
+## Known Issues
+
+This module is designed to only follow the HTTP specifications, not
+to work-around all kinda of client bugs (especially since this module
+typically does not receive enough information to understand what the
+client actually is).
+
+There is a known issue that in certain versions of Safari, Safari
+will incorrectly make a request that allows this module to validate
+freshness of the resource even when Safari does not have a
+representation of the resource in the cache. The module
+[jumanji](https://www.npmjs.com/package/jumanji) can be used in
+an Express application to work-around this issue and also provides
+links to further reading on this Safari bug.
+
+## Example
+
+### API usage
+
+<!-- eslint-disable no-redeclare -->
+
+```js
+var reqHeaders = { 'if-none-match': '"foo"' }
+var resHeaders = { etag: '"bar"' }
+fresh(reqHeaders, resHeaders)
+// => false
+
+var reqHeaders = { 'if-none-match': '"foo"' }
+var resHeaders = { etag: '"foo"' }
+fresh(reqHeaders, resHeaders)
+// => true
+```
+
+### Using with Node.js http server
+
+```js
+var fresh = require('fresh')
+var http = require('http')
+
+var server = http.createServer(function (req, res) {
+  // perform server logic
+  // ... including adding ETag / Last-Modified response headers
+
+  if (isFresh(req, res)) {
+    // client has a fresh copy of resource
+    res.statusCode = 304
+    res.end()
+    return
+  }
+
+  // send the resource
+  res.statusCode = 200
+  res.end('hello, world!')
+})
+
+function isFresh (req, res) {
+  return fresh(req.headers, {
+    etag: res.getHeader('ETag'),
+    'last-modified': res.getHeader('Last-Modified')
+  })
+}
+
+server.listen(3000)
+```
+
+## License
+
+[MIT](LICENSE)
+
+[ci-image]: https://img.shields.io/github/workflow/status/jshttp/fresh/ci/master?label=ci
+[ci-url]: https://github.com/jshttp/fresh/actions/workflows/ci.yml
+[npm-image]: https://img.shields.io/npm/v/fresh.svg
+[npm-url]: https://npmjs.org/package/fresh
+[node-version-image]: https://img.shields.io/node/v/fresh.svg
+[node-version-url]: https://nodejs.org/en/
+[coveralls-image]: https://img.shields.io/coveralls/jshttp/fresh/master.svg
+[coveralls-url]: https://coveralls.io/r/jshttp/fresh?branch=master
+[downloads-image]: https://img.shields.io/npm/dm/fresh.svg
+[downloads-url]: https://npmjs.org/package/fresh
diff --git a/backend/node_modules/fresh/index.js b/backend/node_modules/fresh/index.js
new file mode 100644
index 0000000..fc3dea7
--- /dev/null
+++ b/backend/node_modules/fresh/index.js
@@ -0,0 +1,136 @@
+/*!
+ * fresh
+ * Copyright(c) 2012 TJ Holowaychuk
+ * Copyright(c) 2016-2017 Douglas Christopher Wilson
+ * MIT Licensed
+ */
+
+'use strict'
+
+/**
+ * RegExp to check for no-cache token in Cache-Control.
+ * @private
+ */
+
+var CACHE_CONTROL_NO_CACHE_REGEXP = /(?:^|,)\s*?no-cache\s*?(?:,|$)/
+
+/**
+ * Module exports.
+ * @public
+ */
+
+module.exports = fresh
+
+/**
+ * Check freshness of the response using request and response headers.
+ *
+ * @param {Object} reqHeaders
+ * @param {Object} resHeaders
+ * @return {Boolean}
+ * @public
+ */
+
+function fresh (reqHeaders, resHeaders) {
+  // fields
+  var modifiedSince = reqHeaders['if-modified-since']
+  var noneMatch = reqHeaders['if-none-match']
+
+  // unconditional request
+  if (!modifiedSince && !noneMatch) {
+    return false
+  }
+
+  // Always return stale when Cache-Control: no-cache
+  // to support end-to-end reload requests
+  // https://tools.ietf.org/html/rfc2616#section-14.9.4
+  var cacheControl = reqHeaders['cache-control']
+  if (cacheControl && CACHE_CONTROL_NO_CACHE_REGEXP.test(cacheControl)) {
+    return false
+  }
+
+  // if-none-match takes precedent over if-modified-since
+  if (noneMatch) {
+    if (noneMatch === '*') {
+      return true
+    }
+    var etag = resHeaders.etag
+
+    if (!etag) {
+      return false
+    }
+
+    var matches = parseTokenList(noneMatch)
+    for (var i = 0; i < matches.length; i++) {
+      var match = matches[i]
+      if (match === etag || match === 'W/' + etag || 'W/' + match === etag) {
+        return true
+      }
+    }
+
+    return false
+  }
+
+  // if-modified-since
+  if (modifiedSince) {
+    var lastModified = resHeaders['last-modified']
+    var modifiedStale = !lastModified || !(parseHttpDate(lastModified) <= parseHttpDate(modifiedSince))
+
+    if (modifiedStale) {
+      return false
+    }
+  }
+
+  return true
+}
+
+/**
+ * Parse an HTTP Date into a number.
+ *
+ * @param {string} date
+ * @private
+ */
+
+function parseHttpDate (date) {
+  var timestamp = date && Date.parse(date)
+
+  // istanbul ignore next: guard against date.js Date.parse patching
+  return typeof timestamp === 'number'
+    ? timestamp
+    : NaN
+}
+
+/**
+ * Parse a HTTP token list.
+ *
+ * @param {string} str
+ * @private
+ */
+
+function parseTokenList (str) {
+  var end = 0
+  var list = []
+  var start = 0
+
+  // gather tokens
+  for (var i = 0, len = str.length; i < len; i++) {
+    switch (str.charCodeAt(i)) {
+      case 0x20: /*   */
+        if (start === end) {
+          start = end = i + 1
+        }
+        break
+      case 0x2c: /* , */
+        list.push(str.substring(start, end))
+        start = end = i + 1
+        break
+      default:
+        end = i + 1
+        break
+    }
+  }
+
+  // final token
+  list.push(str.substring(start, end))
+
+  return list
+}
diff --git a/backend/node_modules/fresh/package.json b/backend/node_modules/fresh/package.json
new file mode 100644
index 0000000..5d7e215
--- /dev/null
+++ b/backend/node_modules/fresh/package.json
@@ -0,0 +1,46 @@
+{
+  "name": "fresh",
+  "description": "HTTP response freshness testing",
+  "version": "2.0.0",
+  "author": "TJ Holowaychuk <tj@vision-media.ca> (http://tjholowaychuk.com)",
+  "contributors": [
+    "Douglas Christopher Wilson <doug@somethingdoug.com>",
+    "Jonathan Ong <me@jongleberry.com> (http://jongleberry.com)"
+  ],
+  "license": "MIT",
+  "keywords": [
+    "fresh",
+    "http",
+    "conditional",
+    "cache"
+  ],
+  "repository": "jshttp/fresh",
+  "devDependencies": {
+    "beautify-benchmark": "0.2.4",
+    "benchmark": "2.1.4",
+    "eslint": "8.12.0",
+    "eslint-config-standard": "14.1.1",
+    "eslint-plugin-import": "2.25.4",
+    "eslint-plugin-markdown": "2.2.1",
+    "eslint-plugin-node": "11.1.0",
+    "eslint-plugin-promise": "6.0.0",
+    "eslint-plugin-standard": "4.1.0",
+    "mocha": "9.2.0",
+    "nyc": "15.1.0"
+  },
+  "files": [
+    "HISTORY.md",
+    "LICENSE",
+    "index.js"
+  ],
+  "engines": {
+    "node": ">= 0.8"
+  },
+  "scripts": {
+    "bench": "node benchmark/index.js",
+    "lint": "eslint .",
+    "test": "mocha --reporter spec --check-leaks --bail test/",
+    "test-ci": "nyc --reporter=lcov --reporter=text npm test",
+    "test-cov": "nyc --reporter=html --reporter=text npm test"
+  }
+}
diff --git a/backend/node_modules/function-bind/.eslintrc b/backend/node_modules/function-bind/.eslintrc
new file mode 100644
index 0000000..71a054f
--- /dev/null
+++ b/backend/node_modules/function-bind/.eslintrc
@@ -0,0 +1,21 @@
+{
+	"root": true,
+
+	"extends": "@ljharb",
+
+	"rules": {
+		"func-name-matching": 0,
+		"indent": [2, 4],
+		"no-new-func": [1],
+	},
+
+	"overrides": [
+		{
+			"files": "test/**",
+			"rules": {
+				"max-lines-per-function": 0,
+				"strict": [0]
+			},
+		},
+	],
+}
diff --git a/backend/node_modules/function-bind/.github/FUNDING.yml b/backend/node_modules/function-bind/.github/FUNDING.yml
new file mode 100644
index 0000000..7448219
--- /dev/null
+++ b/backend/node_modules/function-bind/.github/FUNDING.yml
@@ -0,0 +1,12 @@
+# These are supported funding model platforms
+
+github: [ljharb]
+patreon: # Replace with a single Patreon username
+open_collective: # Replace with a single Open Collective username
+ko_fi: # Replace with a single Ko-fi username
+tidelift: npm/function-bind
+community_bridge: # Replace with a single Community Bridge project-name e.g., cloud-foundry
+liberapay: # Replace with a single Liberapay username
+issuehunt: # Replace with a single IssueHunt username
+otechie: # Replace with a single Otechie username
+custom: # Replace with up to 4 custom sponsorship URLs e.g., ['link1', 'link2']
diff --git a/backend/node_modules/function-bind/.github/SECURITY.md b/backend/node_modules/function-bind/.github/SECURITY.md
new file mode 100644
index 0000000..82e4285
--- /dev/null
+++ b/backend/node_modules/function-bind/.github/SECURITY.md
@@ -0,0 +1,3 @@
+# Security
+
+Please email [@ljharb](https://github.com/ljharb) or see https://tidelift.com/security if you have a potential security vulnerability to report.
diff --git a/backend/node_modules/function-bind/.nycrc b/backend/node_modules/function-bind/.nycrc
new file mode 100644
index 0000000..1826526
--- /dev/null
+++ b/backend/node_modules/function-bind/.nycrc
@@ -0,0 +1,13 @@
+{
+	"all": true,
+	"check-coverage": false,
+	"reporter": ["text-summary", "text", "html", "json"],
+	"lines": 86,
+	"statements": 85.93,
+	"functions": 82.43,
+	"branches": 76.06,
+	"exclude": [
+		"coverage",
+		"test"
+	]
+}
diff --git a/backend/node_modules/function-bind/CHANGELOG.md b/backend/node_modules/function-bind/CHANGELOG.md
new file mode 100644
index 0000000..f9e6cc0
--- /dev/null
+++ b/backend/node_modules/function-bind/CHANGELOG.md
@@ -0,0 +1,136 @@
+# Changelog
+
+All notable changes to this project will be documented in this file.
+
+The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/)
+and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
+
+## [v1.1.2](https://github.com/ljharb/function-bind/compare/v1.1.1...v1.1.2) - 2023-10-12
+
+### Merged
+
+- Point to the correct file [`#16`](https://github.com/ljharb/function-bind/pull/16)
+
+### Commits
+
+- [Tests] migrate tests to Github Actions [`4f8b57c`](https://github.com/ljharb/function-bind/commit/4f8b57c02f2011fe9ae353d5e74e8745f0988af8)
+- [Tests] remove `jscs` [`90eb2ed`](https://github.com/ljharb/function-bind/commit/90eb2edbeefd5b76cd6c3a482ea3454db169b31f)
+- [meta] update `.gitignore` [`53fcdc3`](https://github.com/ljharb/function-bind/commit/53fcdc371cd66634d6e9b71c836a50f437e89fed)
+- [Tests] up to `node` `v11.10`, `v10.15`, `v9.11`, `v8.15`, `v6.16`, `v4.9`; use `nvm install-latest-npm`; run audit script in tests [`1fe8f6e`](https://github.com/ljharb/function-bind/commit/1fe8f6e9aed0dfa8d8b3cdbd00c7f5ea0cd2b36e)
+- [meta] add `auto-changelog` [`1921fcb`](https://github.com/ljharb/function-bind/commit/1921fcb5b416b63ffc4acad051b6aad5722f777d)
+- [Robustness] remove runtime dependency on all builtins except `.apply` [`f743e61`](https://github.com/ljharb/function-bind/commit/f743e61aa6bb2360358c04d4884c9db853d118b7)
+- Docs: enable badges; update wording [`503cb12`](https://github.com/ljharb/function-bind/commit/503cb12d998b5f91822776c73332c7adcd6355dd)
+- [readme] update badges [`290c5db`](https://github.com/ljharb/function-bind/commit/290c5dbbbda7264efaeb886552a374b869a4bb48)
+- [Tests] switch to nyc for coverage [`ea360ba`](https://github.com/ljharb/function-bind/commit/ea360ba907fc2601ed18d01a3827fa2d3533cdf8)
+- [Dev Deps] update `eslint`, `@ljharb/eslint-config`, `tape` [`cae5e9e`](https://github.com/ljharb/function-bind/commit/cae5e9e07a5578dc6df26c03ee22851ce05b943c)
+- [meta] add `funding` field; create FUNDING.yml [`c9f4274`](https://github.com/ljharb/function-bind/commit/c9f4274aa80ea3aae9657a3938fdba41a3b04ca6)
+- [Tests] fix eslint errors from #15 [`f69aaa2`](https://github.com/ljharb/function-bind/commit/f69aaa2beb2fdab4415bfb885760a699d0b9c964)
+- [actions] fix permissions [`99a0cd9`](https://github.com/ljharb/function-bind/commit/99a0cd9f3b5bac223a0d572f081834cd73314be7)
+- [meta] use `npmignore` to autogenerate an npmignore file [`f03b524`](https://github.com/ljharb/function-bind/commit/f03b524ca91f75a109a5d062f029122c86ecd1ae)
+- [Dev Deps] update `@ljharb/eslint‑config`, `eslint`, `tape` [`7af9300`](https://github.com/ljharb/function-bind/commit/7af930023ae2ce7645489532821e4fbbcd7a2280)
+- [Dev Deps] update `eslint`, `@ljharb/eslint-config`, `covert`, `tape` [`64a9127`](https://github.com/ljharb/function-bind/commit/64a9127ab0bd331b93d6572eaf6e9971967fc08c)
+- [Tests] use `aud` instead of `npm audit` [`e75069c`](https://github.com/ljharb/function-bind/commit/e75069c50010a8fcce2a9ce2324934c35fdb4386)
+- [Dev Deps] update `@ljharb/eslint-config`, `aud`, `tape` [`d03555c`](https://github.com/ljharb/function-bind/commit/d03555ca59dea3b71ce710045e4303b9e2619e28)
+- [meta] add `safe-publish-latest` [`9c8f809`](https://github.com/ljharb/function-bind/commit/9c8f8092aed027d7e80c94f517aa892385b64f09)
+- [Dev Deps] update `@ljharb/eslint-config`, `tape` [`baf6893`](https://github.com/ljharb/function-bind/commit/baf6893e27f5b59abe88bc1995e6f6ed1e527397)
+- [meta] create SECURITY.md [`4db1779`](https://github.com/ljharb/function-bind/commit/4db17799f1f28ae294cb95e0081ca2b591c3911b)
+- [Tests] add `npm run audit` [`c8b38ec`](https://github.com/ljharb/function-bind/commit/c8b38ec40ed3f85dabdee40ed4148f1748375bc2)
+- Revert "Point to the correct file" [`05cdf0f`](https://github.com/ljharb/function-bind/commit/05cdf0fa205c6a3c5ba40bbedd1dfa9874f915c9)
+
+## [v1.1.1](https://github.com/ljharb/function-bind/compare/v1.1.0...v1.1.1) - 2017-08-28
+
+### Commits
+
+- [Tests] up to `node` `v8`; newer npm breaks on older node; fix scripts [`817f7d2`](https://github.com/ljharb/function-bind/commit/817f7d28470fdbff8ef608d4d565dd4d1430bc5e)
+- [Dev Deps] update `eslint`, `jscs`, `tape`, `@ljharb/eslint-config` [`854288b`](https://github.com/ljharb/function-bind/commit/854288b1b6f5c555f89aceb9eff1152510262084)
+- [Dev Deps] update `tape`, `jscs`, `eslint`, `@ljharb/eslint-config` [`83e639f`](https://github.com/ljharb/function-bind/commit/83e639ff74e6cd6921285bccec22c1bcf72311bd)
+- Only apps should have lockfiles [`5ed97f5`](https://github.com/ljharb/function-bind/commit/5ed97f51235c17774e0832e122abda0f3229c908)
+- Use a SPDX-compliant “license” field. [`5feefea`](https://github.com/ljharb/function-bind/commit/5feefea0dc0193993e83e5df01ded424403a5381)
+
+## [v1.1.0](https://github.com/ljharb/function-bind/compare/v1.0.2...v1.1.0) - 2016-02-14
+
+### Commits
+
+- Update `eslint`, `tape`; use my personal shared `eslint` config [`9c9062a`](https://github.com/ljharb/function-bind/commit/9c9062abbe9dd70b59ea2c3a3c3a81f29b457097)
+- Add `npm run eslint` [`dd96c56`](https://github.com/ljharb/function-bind/commit/dd96c56720034a3c1ffee10b8a59a6f7c53e24ad)
+- [New] return the native `bind` when available. [`82186e0`](https://github.com/ljharb/function-bind/commit/82186e03d73e580f95ff167e03f3582bed90ed72)
+- [Dev Deps] update `tape`, `jscs`, `eslint`, `@ljharb/eslint-config` [`a3dd767`](https://github.com/ljharb/function-bind/commit/a3dd76720c795cb7f4586b0544efabf8aa107b8b)
+- Update `eslint` [`3dae2f7`](https://github.com/ljharb/function-bind/commit/3dae2f7423de30a2d20313ddb1edc19660142fe9)
+- Update `tape`, `covert`, `jscs` [`a181eee`](https://github.com/ljharb/function-bind/commit/a181eee0cfa24eb229c6e843a971f36e060a2f6a)
+- [Tests] up to `node` `v5.6`, `v4.3` [`964929a`](https://github.com/ljharb/function-bind/commit/964929a6a4ddb36fb128de2bcc20af5e4f22e1ed)
+- Test up to `io.js` `v2.1` [`2be7310`](https://github.com/ljharb/function-bind/commit/2be7310f2f74886a7124ca925be411117d41d5ea)
+- Update `tape`, `jscs`, `eslint`, `@ljharb/eslint-config` [`45f3d68`](https://github.com/ljharb/function-bind/commit/45f3d6865c6ca93726abcef54febe009087af101)
+- [Dev Deps] update `tape`, `jscs` [`6e1340d`](https://github.com/ljharb/function-bind/commit/6e1340d94642deaecad3e717825db641af4f8b1f)
+- [Tests] up to `io.js` `v3.3`, `node` `v4.1` [`d9bad2b`](https://github.com/ljharb/function-bind/commit/d9bad2b778b1b3a6dd2876087b88b3acf319f8cc)
+- Update `eslint` [`935590c`](https://github.com/ljharb/function-bind/commit/935590caa024ab356102e4858e8fc315b2ccc446)
+- [Dev Deps] update `jscs`, `eslint`, `@ljharb/eslint-config` [`8c9a1ef`](https://github.com/ljharb/function-bind/commit/8c9a1efd848e5167887aa8501857a0940a480c57)
+- Test on `io.js` `v2.2` [`9a3a38c`](https://github.com/ljharb/function-bind/commit/9a3a38c92013aed6e108666e7bd40969b84ac86e)
+- Run `travis-ci` tests on `iojs` and `node` v0.12; speed up builds; allow 0.8 failures. [`69afc26`](https://github.com/ljharb/function-bind/commit/69afc2617405b147dd2a8d8ae73ca9e9283f18b4)
+- [Dev Deps] Update `tape`, `eslint` [`36c1be0`](https://github.com/ljharb/function-bind/commit/36c1be0ab12b45fe5df6b0fdb01a5d5137fd0115)
+- Update `tape`, `jscs` [`98d8303`](https://github.com/ljharb/function-bind/commit/98d8303cd5ca1c6b8f985469f86b0d44d7d45f6e)
+- Update `jscs` [`9633a4e`](https://github.com/ljharb/function-bind/commit/9633a4e9fbf82051c240855166e468ba8ba0846f)
+- Update `tape`, `jscs` [`c80ef0f`](https://github.com/ljharb/function-bind/commit/c80ef0f46efc9791e76fa50de4414092ac147831)
+- Test up to `io.js` `v3.0` [`7e2c853`](https://github.com/ljharb/function-bind/commit/7e2c8537d52ab9cf5a655755561d8917684c0df4)
+- Test on `io.js` `v2.4` [`5a199a2`](https://github.com/ljharb/function-bind/commit/5a199a27ba46795ba5eaf0845d07d4b8232895c9)
+- Test on `io.js` `v2.3` [`a511b88`](https://github.com/ljharb/function-bind/commit/a511b8896de0bddf3b56862daa416c701f4d0453)
+- Fixing a typo from 822b4e1938db02dc9584aa434fd3a45cb20caf43 [`732d6b6`](https://github.com/ljharb/function-bind/commit/732d6b63a9b33b45230e630dbcac7a10855d3266)
+- Update `jscs` [`da52a48`](https://github.com/ljharb/function-bind/commit/da52a4886c06d6490f46ae30b15e4163ba08905d)
+- Lock covert to v1.0.0. [`d6150fd`](https://github.com/ljharb/function-bind/commit/d6150fda1e6f486718ebdeff823333d9e48e7430)
+
+## [v1.0.2](https://github.com/ljharb/function-bind/compare/v1.0.1...v1.0.2) - 2014-10-04
+
+## [v1.0.1](https://github.com/ljharb/function-bind/compare/v1.0.0...v1.0.1) - 2014-10-03
+
+### Merged
+
+- make CI build faster [`#3`](https://github.com/ljharb/function-bind/pull/3)
+
+### Commits
+
+- Using my standard jscs.json [`d8ee94c`](https://github.com/ljharb/function-bind/commit/d8ee94c993eff0a84cf5744fe6a29627f5cffa1a)
+- Adding `npm run lint` [`7571ab7`](https://github.com/ljharb/function-bind/commit/7571ab7dfdbd99b25a1dbb2d232622bd6f4f9c10)
+- Using consistent indentation [`e91a1b1`](https://github.com/ljharb/function-bind/commit/e91a1b13a61e99ec1e530e299b55508f74218a95)
+- Updating jscs [`7e17892`](https://github.com/ljharb/function-bind/commit/7e1789284bc629bc9c1547a61c9b227bbd8c7a65)
+- Using consistent quotes [`c50b57f`](https://github.com/ljharb/function-bind/commit/c50b57fcd1c5ec38320979c837006069ebe02b77)
+- Adding keywords [`cb94631`](https://github.com/ljharb/function-bind/commit/cb946314eed35f21186a25fb42fc118772f9ee00)
+- Directly export a function expression instead of using a declaration, and relying on hoisting. [`5a33c5f`](https://github.com/ljharb/function-bind/commit/5a33c5f45642de180e0d207110bf7d1843ceb87c)
+- Naming npm URL and badge in README; use SVG [`2aef8fc`](https://github.com/ljharb/function-bind/commit/2aef8fcb79d54e63a58ae557c4e60949e05d5e16)
+- Naming deps URLs in README [`04228d7`](https://github.com/ljharb/function-bind/commit/04228d766670ee45ca24e98345c1f6a7621065b5)
+- Naming travis-ci URLs in README; using SVG [`62c810c`](https://github.com/ljharb/function-bind/commit/62c810c2f54ced956cd4d4ab7b793055addfe36e)
+- Make sure functions are invoked correctly (also passing coverage tests) [`2b289b4`](https://github.com/ljharb/function-bind/commit/2b289b4dfbf037ffcfa4dc95eb540f6165e9e43a)
+- Removing the strict mode pragmas; they make tests fail. [`1aa701d`](https://github.com/ljharb/function-bind/commit/1aa701d199ddc3782476e8f7eef82679be97b845)
+- Adding myself as a contributor [`85fd57b`](https://github.com/ljharb/function-bind/commit/85fd57b0860e5a7af42de9a287f3f265fc6d72fc)
+- Adding strict mode pragmas [`915b08e`](https://github.com/ljharb/function-bind/commit/915b08e084c86a722eafe7245e21db74aa21ca4c)
+- Adding devDeps URLs to README [`4ccc731`](https://github.com/ljharb/function-bind/commit/4ccc73112c1769859e4ca3076caf4086b3cba2cd)
+- Fixing the description. [`a7a472c`](https://github.com/ljharb/function-bind/commit/a7a472cf649af515c635cf560fc478fbe48999c8)
+- Using a function expression instead of a function declaration. [`b5d3e4e`](https://github.com/ljharb/function-bind/commit/b5d3e4ea6aaffc63888953eeb1fbc7ff45f1fa14)
+- Updating tape [`f086be6`](https://github.com/ljharb/function-bind/commit/f086be6029fb56dde61a258c1340600fa174d1e0)
+- Updating jscs [`5f9bdb3`](https://github.com/ljharb/function-bind/commit/5f9bdb375ab13ba48f30852aab94029520c54d71)
+- Updating jscs [`9b409ba`](https://github.com/ljharb/function-bind/commit/9b409ba6118e23395a4e5d83ef39152aab9d3bfc)
+- Run coverage as part of tests. [`8e1b6d4`](https://github.com/ljharb/function-bind/commit/8e1b6d459f047d1bd4fee814e01247c984c80bd0)
+- Run linter as part of tests [`c1ca83f`](https://github.com/ljharb/function-bind/commit/c1ca83f832df94587d09e621beba682fabfaa987)
+- Updating covert [`701e837`](https://github.com/ljharb/function-bind/commit/701e83774b57b4d3ef631e1948143f43a72f4bb9)
+
+## [v1.0.0](https://github.com/ljharb/function-bind/compare/v0.2.0...v1.0.0) - 2014-08-09
+
+### Commits
+
+- Make sure old and unstable nodes don't fail Travis [`27adca3`](https://github.com/ljharb/function-bind/commit/27adca34a4ab6ad67b6dfde43942a1b103ce4d75)
+- Fixing an issue when the bound function is called as a constructor in ES3. [`e20122d`](https://github.com/ljharb/function-bind/commit/e20122d267d92ce553859b280cbbea5d27c07731)
+- Adding `npm run coverage` [`a2e29c4`](https://github.com/ljharb/function-bind/commit/a2e29c4ecaef9e2f6cd1603e868c139073375502)
+- Updating tape [`b741168`](https://github.com/ljharb/function-bind/commit/b741168b12b235b1717ff696087645526b69213c)
+- Upgrading tape [`63631a0`](https://github.com/ljharb/function-bind/commit/63631a04c7fbe97cc2fa61829cc27246d6986f74)
+- Updating tape [`363cb46`](https://github.com/ljharb/function-bind/commit/363cb46dafb23cb3e347729a22f9448051d78464)
+
+## v0.2.0 - 2014-03-23
+
+### Commits
+
+- Updating test coverage to match es5-shim. [`aa94d44`](https://github.com/ljharb/function-bind/commit/aa94d44b8f9d7f69f10e060db7709aa7a694e5d4)
+- initial [`942ee07`](https://github.com/ljharb/function-bind/commit/942ee07e94e542d91798137bc4b80b926137e066)
+- Setting the bound function's length properly. [`079f46a`](https://github.com/ljharb/function-bind/commit/079f46a2d3515b7c0b308c2c13fceb641f97ca25)
+- Ensuring that some older browsers will throw when given a regex. [`36ac55b`](https://github.com/ljharb/function-bind/commit/36ac55b87f460d4330253c92870aa26fbfe8227f)
+- Removing npm scripts that don't have dependencies [`9d2be60`](https://github.com/ljharb/function-bind/commit/9d2be600002cb8bc8606f8f3585ad3e05868c750)
+- Updating tape [`297a4ac`](https://github.com/ljharb/function-bind/commit/297a4acc5464db381940aafb194d1c88f4e678f3)
+- Skipping length tests for now. [`d9891ea`](https://github.com/ljharb/function-bind/commit/d9891ea4d2aaffa69f408339cdd61ff740f70565)
+- don't take my tea [`dccd930`](https://github.com/ljharb/function-bind/commit/dccd930bfd60ea10cb178d28c97550c3bc8c1e07)
diff --git a/backend/node_modules/function-bind/LICENSE b/backend/node_modules/function-bind/LICENSE
new file mode 100644
index 0000000..62d6d23
--- /dev/null
+++ b/backend/node_modules/function-bind/LICENSE
@@ -0,0 +1,20 @@
+Copyright (c) 2013 Raynos.
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
+
diff --git a/backend/node_modules/function-bind/README.md b/backend/node_modules/function-bind/README.md
new file mode 100644
index 0000000..814c20b
--- /dev/null
+++ b/backend/node_modules/function-bind/README.md
@@ -0,0 +1,46 @@
+# function-bind <sup>[![Version Badge][npm-version-svg]][package-url]</sup>
+
+[![github actions][actions-image]][actions-url]
+<!--[![coverage][codecov-image]][codecov-url]-->
+[![dependency status][deps-svg]][deps-url]
+[![dev dependency status][dev-deps-svg]][dev-deps-url]
+[![License][license-image]][license-url]
+[![Downloads][downloads-image]][downloads-url]
+
+[![npm badge][npm-badge-png]][package-url]
+
+Implementation of function.prototype.bind
+
+Old versions of phantomjs, Internet Explorer < 9, and node < 0.6 don't support `Function.prototype.bind`.
+
+## Example
+
+```js
+Function.prototype.bind = require("function-bind")
+```
+
+## Installation
+
+`npm install function-bind`
+
+## Contributors
+
+ - Raynos
+
+## MIT Licenced
+
+[package-url]: https://npmjs.org/package/function-bind
+[npm-version-svg]: https://versionbadg.es/Raynos/function-bind.svg
+[deps-svg]: https://david-dm.org/Raynos/function-bind.svg
+[deps-url]: https://david-dm.org/Raynos/function-bind
+[dev-deps-svg]: https://david-dm.org/Raynos/function-bind/dev-status.svg
+[dev-deps-url]: https://david-dm.org/Raynos/function-bind#info=devDependencies
+[npm-badge-png]: https://nodei.co/npm/function-bind.png?downloads=true&stars=true
+[license-image]: https://img.shields.io/npm/l/function-bind.svg
+[license-url]: LICENSE
+[downloads-image]: https://img.shields.io/npm/dm/function-bind.svg
+[downloads-url]: https://npm-stat.com/charts.html?package=function-bind
+[codecov-image]: https://codecov.io/gh/Raynos/function-bind/branch/main/graphs/badge.svg
+[codecov-url]: https://app.codecov.io/gh/Raynos/function-bind/
+[actions-image]: https://img.shields.io/endpoint?url=https://github-actions-badge-u3jn4tfpocch.runkit.sh/Raynos/function-bind
+[actions-url]: https://github.com/Raynos/function-bind/actions
diff --git a/backend/node_modules/function-bind/implementation.js b/backend/node_modules/function-bind/implementation.js
new file mode 100644
index 0000000..fd4384c
--- /dev/null
+++ b/backend/node_modules/function-bind/implementation.js
@@ -0,0 +1,84 @@
+'use strict';
+
+/* eslint no-invalid-this: 1 */
+
+var ERROR_MESSAGE = 'Function.prototype.bind called on incompatible ';
+var toStr = Object.prototype.toString;
+var max = Math.max;
+var funcType = '[object Function]';
+
+var concatty = function concatty(a, b) {
+    var arr = [];
+
+    for (var i = 0; i < a.length; i += 1) {
+        arr[i] = a[i];
+    }
+    for (var j = 0; j < b.length; j += 1) {
+        arr[j + a.length] = b[j];
+    }
+
+    return arr;
+};
+
+var slicy = function slicy(arrLike, offset) {
+    var arr = [];
+    for (var i = offset || 0, j = 0; i < arrLike.length; i += 1, j += 1) {
+        arr[j] = arrLike[i];
+    }
+    return arr;
+};
+
+var joiny = function (arr, joiner) {
+    var str = '';
+    for (var i = 0; i < arr.length; i += 1) {
+        str += arr[i];
+        if (i + 1 < arr.length) {
+            str += joiner;
+        }
+    }
+    return str;
+};
+
+module.exports = function bind(that) {
+    var target = this;
+    if (typeof target !== 'function' || toStr.apply(target) !== funcType) {
+        throw new TypeError(ERROR_MESSAGE + target);
+    }
+    var args = slicy(arguments, 1);
+
+    var bound;
+    var binder = function () {
+        if (this instanceof bound) {
+            var result = target.apply(
+                this,
+                concatty(args, arguments)
+            );
+            if (Object(result) === result) {
+                return result;
+            }
+            return this;
+        }
+        return target.apply(
+            that,
+            concatty(args, arguments)
+        );
+
+    };
+
+    var boundLength = max(0, target.length - args.length);
+    var boundArgs = [];
+    for (var i = 0; i < boundLength; i++) {
+        boundArgs[i] = '$' + i;
+    }
+
+    bound = Function('binder', 'return function (' + joiny(boundArgs, ',') + '){ return binder.apply(this,arguments); }')(binder);
+
+    if (target.prototype) {
+        var Empty = function Empty() {};
+        Empty.prototype = target.prototype;
+        bound.prototype = new Empty();
+        Empty.prototype = null;
+    }
+
+    return bound;
+};
diff --git a/backend/node_modules/function-bind/index.js b/backend/node_modules/function-bind/index.js
new file mode 100644
index 0000000..3bb6b96
--- /dev/null
+++ b/backend/node_modules/function-bind/index.js
@@ -0,0 +1,5 @@
+'use strict';
+
+var implementation = require('./implementation');
+
+module.exports = Function.prototype.bind || implementation;
diff --git a/backend/node_modules/function-bind/package.json b/backend/node_modules/function-bind/package.json
new file mode 100644
index 0000000..6185963
--- /dev/null
+++ b/backend/node_modules/function-bind/package.json
@@ -0,0 +1,87 @@
+{
+  "name": "function-bind",
+  "version": "1.1.2",
+  "description": "Implementation of Function.prototype.bind",
+  "keywords": [
+    "function",
+    "bind",
+    "shim",
+    "es5"
+  ],
+  "author": "Raynos <raynos2@gmail.com>",
+  "repository": {
+    "type": "git",
+    "url": "https://github.com/Raynos/function-bind.git"
+  },
+  "funding": {
+    "url": "https://github.com/sponsors/ljharb"
+  },
+  "main": "index",
+  "homepage": "https://github.com/Raynos/function-bind",
+  "contributors": [
+    {
+      "name": "Raynos"
+    },
+    {
+      "name": "Jordan Harband",
+      "url": "https://github.com/ljharb"
+    }
+  ],
+  "bugs": {
+    "url": "https://github.com/Raynos/function-bind/issues",
+    "email": "raynos2@gmail.com"
+  },
+  "devDependencies": {
+    "@ljharb/eslint-config": "^21.1.0",
+    "aud": "^2.0.3",
+    "auto-changelog": "^2.4.0",
+    "eslint": "=8.8.0",
+    "in-publish": "^2.0.1",
+    "npmignore": "^0.3.0",
+    "nyc": "^10.3.2",
+    "safe-publish-latest": "^2.0.0",
+    "tape": "^5.7.1"
+  },
+  "license": "MIT",
+  "scripts": {
+    "prepublishOnly": "safe-publish-latest",
+    "prepublish": "not-in-publish || npm run prepublishOnly",
+    "prepack": "npmignore --auto --commentLines=autogenerated",
+    "pretest": "npm run lint",
+    "test": "npm run tests-only",
+    "posttest": "aud --production",
+    "tests-only": "nyc tape 'test/**/*.js'",
+    "lint": "eslint --ext=js,mjs .",
+    "version": "auto-changelog && git add CHANGELOG.md",
+    "postversion": "auto-changelog && git add CHANGELOG.md && git commit --no-edit --amend && git tag -f \"v$(node -e \"console.log(require('./package.json').version)\")\""
+  },
+  "testling": {
+    "files": "test/index.js",
+    "browsers": [
+      "ie/8..latest",
+      "firefox/16..latest",
+      "firefox/nightly",
+      "chrome/22..latest",
+      "chrome/canary",
+      "opera/12..latest",
+      "opera/next",
+      "safari/5.1..latest",
+      "ipad/6.0..latest",
+      "iphone/6.0..latest",
+      "android-browser/4.2..latest"
+    ]
+  },
+  "auto-changelog": {
+    "output": "CHANGELOG.md",
+    "template": "keepachangelog",
+    "unreleased": false,
+    "commitLimit": false,
+    "backfillLimit": false,
+    "hideCredit": true
+  },
+  "publishConfig": {
+    "ignore": [
+      ".github/workflows"
+    ]
+  }
+}
diff --git a/backend/node_modules/function-bind/test/.eslintrc b/backend/node_modules/function-bind/test/.eslintrc
new file mode 100644
index 0000000..8a56d5b
--- /dev/null
+++ b/backend/node_modules/function-bind/test/.eslintrc
@@ -0,0 +1,9 @@
+{
+	"rules": {
+		"array-bracket-newline": 0,
+		"array-element-newline": 0,
+		"max-statements-per-line": [2, { "max": 2 }],
+		"no-invalid-this": 0,
+		"no-magic-numbers": 0,
+	}
+}
diff --git a/backend/node_modules/function-bind/test/index.js b/backend/node_modules/function-bind/test/index.js
new file mode 100644
index 0000000..2edecce
--- /dev/null
+++ b/backend/node_modules/function-bind/test/index.js
@@ -0,0 +1,252 @@
+// jscs:disable requireUseStrict
+
+var test = require('tape');
+
+var functionBind = require('../implementation');
+var getCurrentContext = function () { return this; };
+
+test('functionBind is a function', function (t) {
+    t.equal(typeof functionBind, 'function');
+    t.end();
+});
+
+test('non-functions', function (t) {
+    var nonFunctions = [true, false, [], {}, 42, 'foo', NaN, /a/g];
+    t.plan(nonFunctions.length);
+    for (var i = 0; i < nonFunctions.length; ++i) {
+        try { functionBind.call(nonFunctions[i]); } catch (ex) {
+            t.ok(ex instanceof TypeError, 'throws when given ' + String(nonFunctions[i]));
+        }
+    }
+    t.end();
+});
+
+test('without a context', function (t) {
+    t.test('binds properly', function (st) {
+        var args, context;
+        var namespace = {
+            func: functionBind.call(function () {
+                args = Array.prototype.slice.call(arguments);
+                context = this;
+            })
+        };
+        namespace.func(1, 2, 3);
+        st.deepEqual(args, [1, 2, 3]);
+        st.equal(context, getCurrentContext.call());
+        st.end();
+    });
+
+    t.test('binds properly, and still supplies bound arguments', function (st) {
+        var args, context;
+        var namespace = {
+            func: functionBind.call(function () {
+                args = Array.prototype.slice.call(arguments);
+                context = this;
+            }, undefined, 1, 2, 3)
+        };
+        namespace.func(4, 5, 6);
+        st.deepEqual(args, [1, 2, 3, 4, 5, 6]);
+        st.equal(context, getCurrentContext.call());
+        st.end();
+    });
+
+    t.test('returns properly', function (st) {
+        var args;
+        var namespace = {
+            func: functionBind.call(function () {
+                args = Array.prototype.slice.call(arguments);
+                return this;
+            }, null)
+        };
+        var context = namespace.func(1, 2, 3);
+        st.equal(context, getCurrentContext.call(), 'returned context is namespaced context');
+        st.deepEqual(args, [1, 2, 3], 'passed arguments are correct');
+        st.end();
+    });
+
+    t.test('returns properly with bound arguments', function (st) {
+        var args;
+        var namespace = {
+            func: functionBind.call(function () {
+                args = Array.prototype.slice.call(arguments);
+                return this;
+            }, null, 1, 2, 3)
+        };
+        var context = namespace.func(4, 5, 6);
+        st.equal(context, getCurrentContext.call(), 'returned context is namespaced context');
+        st.deepEqual(args, [1, 2, 3, 4, 5, 6], 'passed arguments are correct');
+        st.end();
+    });
+
+    t.test('called as a constructor', function (st) {
+        var thunkify = function (value) {
+            return function () { return value; };
+        };
+        st.test('returns object value', function (sst) {
+            var expectedReturnValue = [1, 2, 3];
+            var Constructor = functionBind.call(thunkify(expectedReturnValue), null);
+            var result = new Constructor();
+            sst.equal(result, expectedReturnValue);
+            sst.end();
+        });
+
+        st.test('does not return primitive value', function (sst) {
+            var Constructor = functionBind.call(thunkify(42), null);
+            var result = new Constructor();
+            sst.notEqual(result, 42);
+            sst.end();
+        });
+
+        st.test('object from bound constructor is instance of original and bound constructor', function (sst) {
+            var A = function (x) {
+                this.name = x || 'A';
+            };
+            var B = functionBind.call(A, null, 'B');
+
+            var result = new B();
+            sst.ok(result instanceof B, 'result is instance of bound constructor');
+            sst.ok(result instanceof A, 'result is instance of original constructor');
+            sst.end();
+        });
+
+        st.end();
+    });
+
+    t.end();
+});
+
+test('with a context', function (t) {
+    t.test('with no bound arguments', function (st) {
+        var args, context;
+        var boundContext = {};
+        var namespace = {
+            func: functionBind.call(function () {
+                args = Array.prototype.slice.call(arguments);
+                context = this;
+            }, boundContext)
+        };
+        namespace.func(1, 2, 3);
+        st.equal(context, boundContext, 'binds a context properly');
+        st.deepEqual(args, [1, 2, 3], 'supplies passed arguments');
+        st.end();
+    });
+
+    t.test('with bound arguments', function (st) {
+        var args, context;
+        var boundContext = {};
+        var namespace = {
+            func: functionBind.call(function () {
+                args = Array.prototype.slice.call(arguments);
+                context = this;
+            }, boundContext, 1, 2, 3)
+        };
+        namespace.func(4, 5, 6);
+        st.equal(context, boundContext, 'binds a context properly');
+        st.deepEqual(args, [1, 2, 3, 4, 5, 6], 'supplies bound and passed arguments');
+        st.end();
+    });
+
+    t.test('returns properly', function (st) {
+        var boundContext = {};
+        var args;
+        var namespace = {
+            func: functionBind.call(function () {
+                args = Array.prototype.slice.call(arguments);
+                return this;
+            }, boundContext)
+        };
+        var context = namespace.func(1, 2, 3);
+        st.equal(context, boundContext, 'returned context is bound context');
+        st.notEqual(context, getCurrentContext.call(), 'returned context is not lexical context');
+        st.deepEqual(args, [1, 2, 3], 'passed arguments are correct');
+        st.end();
+    });
+
+    t.test('returns properly with bound arguments', function (st) {
+        var boundContext = {};
+        var args;
+        var namespace = {
+            func: functionBind.call(function () {
+                args = Array.prototype.slice.call(arguments);
+                return this;
+            }, boundContext, 1, 2, 3)
+        };
+        var context = namespace.func(4, 5, 6);
+        st.equal(context, boundContext, 'returned context is bound context');
+        st.notEqual(context, getCurrentContext.call(), 'returned context is not lexical context');
+        st.deepEqual(args, [1, 2, 3, 4, 5, 6], 'passed arguments are correct');
+        st.end();
+    });
+
+    t.test('passes the correct arguments when called as a constructor', function (st) {
+        var expected = { name: 'Correct' };
+        var namespace = {
+            Func: functionBind.call(function (arg) {
+                return arg;
+            }, { name: 'Incorrect' })
+        };
+        var returned = new namespace.Func(expected);
+        st.equal(returned, expected, 'returns the right arg when called as a constructor');
+        st.end();
+    });
+
+    t.test('has the new instance\'s context when called as a constructor', function (st) {
+        var actualContext;
+        var expectedContext = { foo: 'bar' };
+        var namespace = {
+            Func: functionBind.call(function () {
+                actualContext = this;
+            }, expectedContext)
+        };
+        var result = new namespace.Func();
+        st.equal(result instanceof namespace.Func, true);
+        st.notEqual(actualContext, expectedContext);
+        st.end();
+    });
+
+    t.end();
+});
+
+test('bound function length', function (t) {
+    t.test('sets a correct length without thisArg', function (st) {
+        var subject = functionBind.call(function (a, b, c) { return a + b + c; });
+        st.equal(subject.length, 3);
+        st.equal(subject(1, 2, 3), 6);
+        st.end();
+    });
+
+    t.test('sets a correct length with thisArg', function (st) {
+        var subject = functionBind.call(function (a, b, c) { return a + b + c; }, {});
+        st.equal(subject.length, 3);
+        st.equal(subject(1, 2, 3), 6);
+        st.end();
+    });
+
+    t.test('sets a correct length without thisArg and first argument', function (st) {
+        var subject = functionBind.call(function (a, b, c) { return a + b + c; }, undefined, 1);
+        st.equal(subject.length, 2);
+        st.equal(subject(2, 3), 6);
+        st.end();
+    });
+
+    t.test('sets a correct length with thisArg and first argument', function (st) {
+        var subject = functionBind.call(function (a, b, c) { return a + b + c; }, {}, 1);
+        st.equal(subject.length, 2);
+        st.equal(subject(2, 3), 6);
+        st.end();
+    });
+
+    t.test('sets a correct length without thisArg and too many arguments', function (st) {
+        var subject = functionBind.call(function (a, b, c) { return a + b + c; }, undefined, 1, 2, 3, 4);
+        st.equal(subject.length, 0);
+        st.equal(subject(), 6);
+        st.end();
+    });
+
+    t.test('sets a correct length with thisArg and too many arguments', function (st) {
+        var subject = functionBind.call(function (a, b, c) { return a + b + c; }, {}, 1, 2, 3, 4);
+        st.equal(subject.length, 0);
+        st.equal(subject(), 6);
+        st.end();
+    });
+});
diff --git a/backend/node_modules/get-intrinsic/.eslintrc b/backend/node_modules/get-intrinsic/.eslintrc
new file mode 100644
index 0000000..235fb79
--- /dev/null
+++ b/backend/node_modules/get-intrinsic/.eslintrc
@@ -0,0 +1,42 @@
+{
+	"root": true,
+
+	"extends": "@ljharb",
+
+	"env": {
+		"es6": true,
+		"es2017": true,
+		"es2020": true,
+		"es2021": true,
+		"es2022": true,
+	},
+
+	"globals": {
+		"Float16Array": false,
+	},
+
+	"rules": {
+		"array-bracket-newline": 0,
+		"complexity": 0,
+		"eqeqeq": [2, "allow-null"],
+		"func-name-matching": 0,
+		"id-length": 0,
+		"max-lines": 0,
+		"max-lines-per-function": [2, 90],
+		"max-params": [2, 4],
+		"max-statements": 0,
+		"max-statements-per-line": [2, { "max": 2 }],
+		"multiline-comment-style": 0,
+		"no-magic-numbers": 0,
+		"sort-keys": 0,
+	},
+
+	"overrides": [
+		{
+			"files": "test/**",
+			"rules": {
+				"new-cap": 0,
+			},
+		},
+	],
+}
diff --git a/backend/node_modules/get-intrinsic/.github/FUNDING.yml b/backend/node_modules/get-intrinsic/.github/FUNDING.yml
new file mode 100644
index 0000000..8e8da0d
--- /dev/null
+++ b/backend/node_modules/get-intrinsic/.github/FUNDING.yml
@@ -0,0 +1,12 @@
+# These are supported funding model platforms
+
+github: [ljharb]
+patreon: # Replace with a single Patreon username
+open_collective: # Replace with a single Open Collective username
+ko_fi: # Replace with a single Ko-fi username
+tidelift: npm/get-intrinsic
+community_bridge: # Replace with a single Community Bridge project-name e.g., cloud-foundry
+liberapay: # Replace with a single Liberapay username
+issuehunt: # Replace with a single IssueHunt username
+otechie: # Replace with a single Otechie username
+custom: # Replace with up to 4 custom sponsorship URLs e.g., ['link1', 'link2']
diff --git a/backend/node_modules/get-intrinsic/.nycrc b/backend/node_modules/get-intrinsic/.nycrc
new file mode 100644
index 0000000..bdd626c
--- /dev/null
+++ b/backend/node_modules/get-intrinsic/.nycrc
@@ -0,0 +1,9 @@
+{
+	"all": true,
+	"check-coverage": false,
+	"reporter": ["text-summary", "text", "html", "json"],
+	"exclude": [
+		"coverage",
+		"test"
+	]
+}
diff --git a/backend/node_modules/get-intrinsic/CHANGELOG.md b/backend/node_modules/get-intrinsic/CHANGELOG.md
new file mode 100644
index 0000000..ce1dd98
--- /dev/null
+++ b/backend/node_modules/get-intrinsic/CHANGELOG.md
@@ -0,0 +1,186 @@
+# Changelog
+
+All notable changes to this project will be documented in this file.
+
+The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/)
+and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
+
+## [v1.3.0](https://github.com/ljharb/get-intrinsic/compare/v1.2.7...v1.3.0) - 2025-02-22
+
+### Commits
+
+- [Dev Deps] update `es-abstract`, `es-value-fixtures`, `for-each`, `object-inspect` [`9b61553`](https://github.com/ljharb/get-intrinsic/commit/9b61553c587f1c1edbd435597e88c7d387da97dd)
+- [Deps] update `call-bind-apply-helpers`, `es-object-atoms`, `get-proto` [`a341fee`](https://github.com/ljharb/get-intrinsic/commit/a341fee0f39a403b0f0069e82c97642d5eb11043)
+- [New] add `Float16Array` [`de22116`](https://github.com/ljharb/get-intrinsic/commit/de22116b492fb989a0341bceb6e573abfaed73dc)
+
+## [v1.2.7](https://github.com/ljharb/get-intrinsic/compare/v1.2.6...v1.2.7) - 2025-01-02
+
+### Commits
+
+- [Refactor] use `get-proto` directly [`00ab955`](https://github.com/ljharb/get-intrinsic/commit/00ab95546a0980c8ad42a84253daaa8d2adcedf9)
+- [Deps] update `math-intrinsics` [`c716cdd`](https://github.com/ljharb/get-intrinsic/commit/c716cdd6bbe36b438057025561b8bb5a879ac8a0)
+- [Dev Deps] update `call-bound`, `es-abstract` [`dc648a6`](https://github.com/ljharb/get-intrinsic/commit/dc648a67eb359037dff8d8619bfa71d86debccb1)
+
+## [v1.2.6](https://github.com/ljharb/get-intrinsic/compare/v1.2.5...v1.2.6) - 2024-12-11
+
+### Commits
+
+- [Refactor] use `math-intrinsics` [`841be86`](https://github.com/ljharb/get-intrinsic/commit/841be8641a9254c4c75483b30c8871b5d5065926)
+- [Refactor] use `es-object-atoms` [`42057df`](https://github.com/ljharb/get-intrinsic/commit/42057dfa16f66f64787e66482af381cc6f31d2c1)
+- [Deps] update `call-bind-apply-helpers` [`45afa24`](https://github.com/ljharb/get-intrinsic/commit/45afa24a9ee4d6d3c172db1f555b16cb27843ef4)
+- [Dev Deps] update `call-bound` [`9cba9c6`](https://github.com/ljharb/get-intrinsic/commit/9cba9c6e70212bc163b7a5529cb25df46071646f)
+
+## [v1.2.5](https://github.com/ljharb/get-intrinsic/compare/v1.2.4...v1.2.5) - 2024-12-06
+
+### Commits
+
+- [actions] split out node 10-20, and 20+ [`6e2b9dd`](https://github.com/ljharb/get-intrinsic/commit/6e2b9dd23902665681ebe453256ccfe21d7966f0)
+- [Refactor] use `dunder-proto` and `call-bind-apply-helpers` instead of `has-proto` [`c095d17`](https://github.com/ljharb/get-intrinsic/commit/c095d179ad0f4fbfff20c8a3e0cb4fe668018998)
+- [Refactor] use `gopd` [`9841d5b`](https://github.com/ljharb/get-intrinsic/commit/9841d5b35f7ab4fd2d193f0c741a50a077920e90)
+- [Dev Deps] update `@ljharb/eslint-config`, `auto-changelog`, `es-abstract`, `es-value-fixtures`, `gopd`, `mock-property`, `object-inspect`, `tape` [`2d07e01`](https://github.com/ljharb/get-intrinsic/commit/2d07e01310cee2cbaedfead6903df128b1f5d425)
+- [Deps] update `gopd`, `has-proto`, `has-symbols`, `hasown` [`974d8bf`](https://github.com/ljharb/get-intrinsic/commit/974d8bf5baad7939eef35c25cc1dd88c10a30fa6)
+- [Dev Deps] update `call-bind`, `es-abstract`, `tape` [`df9dde1`](https://github.com/ljharb/get-intrinsic/commit/df9dde178186631ab8a3165ede056549918ce4bc)
+- [Refactor] cache `es-define-property` as well [`43ef543`](https://github.com/ljharb/get-intrinsic/commit/43ef543cb02194401420e3a914a4ca9168691926)
+- [Deps] update `has-proto`, `has-symbols`, `hasown` [`ad4949d`](https://github.com/ljharb/get-intrinsic/commit/ad4949d5467316505aad89bf75f9417ed782f7af)
+- [Tests] use `call-bound` directly [`ad5c406`](https://github.com/ljharb/get-intrinsic/commit/ad5c4069774bfe90e520a35eead5fe5ca9d69e80)
+- [Deps] update `has-proto`, `hasown` [`45414ca`](https://github.com/ljharb/get-intrinsic/commit/45414caa312333a2798953682c68f85c550627dd)
+- [Tests] replace `aud` with `npm audit` [`18d3509`](https://github.com/ljharb/get-intrinsic/commit/18d3509f79460e7924da70409ee81e5053087523)
+- [Deps] update `es-define-property` [`aadaa3b`](https://github.com/ljharb/get-intrinsic/commit/aadaa3b2188d77ad9bff394ce5d4249c49eb21f5)
+- [Dev Deps] add missing peer dep [`c296a16`](https://github.com/ljharb/get-intrinsic/commit/c296a16246d0c9a5981944f4cc5cf61fbda0cf6a)
+
+## [v1.2.4](https://github.com/ljharb/get-intrinsic/compare/v1.2.3...v1.2.4) - 2024-02-05
+
+### Commits
+
+- [Refactor] use all 7 &lt;+ ES6 Errors from `es-errors` [`bcac811`](https://github.com/ljharb/get-intrinsic/commit/bcac811abdc1c982e12abf848a410d6aae148d14)
+
+## [v1.2.3](https://github.com/ljharb/get-intrinsic/compare/v1.2.2...v1.2.3) - 2024-02-03
+
+### Commits
+
+- [Refactor] use `es-errors`, so things that only need those do not need `get-intrinsic` [`f11db9c`](https://github.com/ljharb/get-intrinsic/commit/f11db9c4fb97d87bbd53d3c73ac6b3db3613ad3b)
+- [Dev Deps] update `aud`, `es-abstract`, `mock-property`, `npmignore` [`b7ac7d1`](https://github.com/ljharb/get-intrinsic/commit/b7ac7d1616fefb03877b1aed0c8f8d61aad32b6c)
+- [meta] simplify `exports` [`faa0cc6`](https://github.com/ljharb/get-intrinsic/commit/faa0cc618e2830ffb51a8202490b0c215d965cbc)
+- [meta] add missing `engines.node` [`774dd0b`](https://github.com/ljharb/get-intrinsic/commit/774dd0b3e8f741c3f05a6322d124d6087f146af1)
+- [Dev Deps] update `tape` [`5828e8e`](https://github.com/ljharb/get-intrinsic/commit/5828e8e4a04e69312e87a36c0ea39428a7a4c3d8)
+- [Robustness] use null objects for lookups [`eb9a11f`](https://github.com/ljharb/get-intrinsic/commit/eb9a11fa9eb3e13b193fcc05a7fb814341b1a7b7)
+- [meta] add `sideEffects` flag [`89bcc7a`](https://github.com/ljharb/get-intrinsic/commit/89bcc7a42e19bf07b7c21e3094d5ab177109e6d2)
+
+## [v1.2.2](https://github.com/ljharb/get-intrinsic/compare/v1.2.1...v1.2.2) - 2023-10-20
+
+### Commits
+
+- [Dev Deps] update `@ljharb/eslint-config`, `aud`, `call-bind`, `es-abstract`, `mock-property`, `object-inspect`, `tape` [`f51bcf2`](https://github.com/ljharb/get-intrinsic/commit/f51bcf26412d58d17ce17c91c9afd0ad271f0762)
+- [Refactor] use `hasown` instead of `has` [`18d14b7`](https://github.com/ljharb/get-intrinsic/commit/18d14b799bea6b5765e1cec91890830cbcdb0587)
+- [Deps] update `function-bind` [`6e109c8`](https://github.com/ljharb/get-intrinsic/commit/6e109c81e03804cc5e7824fb64353cdc3d8ee2c7)
+
+## [v1.2.1](https://github.com/ljharb/get-intrinsic/compare/v1.2.0...v1.2.1) - 2023-05-13
+
+### Commits
+
+- [Fix] avoid a crash in envs without `__proto__` [`7bad8d0`](https://github.com/ljharb/get-intrinsic/commit/7bad8d061bf8721733b58b73a2565af2b6756b64)
+- [Dev Deps] update `es-abstract` [`c60e6b7`](https://github.com/ljharb/get-intrinsic/commit/c60e6b7b4cf9660c7f27ed970970fd55fac48dc5)
+
+## [v1.2.0](https://github.com/ljharb/get-intrinsic/compare/v1.1.3...v1.2.0) - 2023-01-19
+
+### Commits
+
+- [actions] update checkout action [`ca6b12f`](https://github.com/ljharb/get-intrinsic/commit/ca6b12f31eaacea4ea3b055e744cd61623385ffb)
+- [Dev Deps] update `@ljharb/eslint-config`, `es-abstract`, `object-inspect`, `tape` [`41a3727`](https://github.com/ljharb/get-intrinsic/commit/41a3727d0026fa04273ae216a5f8e12eefd72da8)
+- [Fix] ensure `Error.prototype` is undeniable [`c511e97`](https://github.com/ljharb/get-intrinsic/commit/c511e97ae99c764c4524b540dee7a70757af8da3)
+- [Dev Deps] update `aud`, `es-abstract`, `tape` [`1bef8a8`](https://github.com/ljharb/get-intrinsic/commit/1bef8a8fd439ebb80863199b6189199e0851ac67)
+- [Dev Deps] update `aud`, `es-abstract` [`0d41f16`](https://github.com/ljharb/get-intrinsic/commit/0d41f16bcd500bc28b7bfc98043ebf61ea081c26)
+- [New] add `BigInt64Array` and `BigUint64Array` [`a6cca25`](https://github.com/ljharb/get-intrinsic/commit/a6cca25f29635889b7e9bd669baf9e04be90e48c)
+- [Tests] use `gopd` [`ecf7722`](https://github.com/ljharb/get-intrinsic/commit/ecf7722240d15cfd16edda06acf63359c10fb9bd)
+
+## [v1.1.3](https://github.com/ljharb/get-intrinsic/compare/v1.1.2...v1.1.3) - 2022-09-12
+
+### Commits
+
+- [Dev Deps] update `es-abstract`, `es-value-fixtures`, `tape` [`07ff291`](https://github.com/ljharb/get-intrinsic/commit/07ff291816406ebe5a12d7f16965bde0942dd688)
+- [Fix] properly check for % signs [`50ac176`](https://github.com/ljharb/get-intrinsic/commit/50ac1760fe99c227e64eabde76e9c0e44cd881b5)
+
+## [v1.1.2](https://github.com/ljharb/get-intrinsic/compare/v1.1.1...v1.1.2) - 2022-06-08
+
+### Fixed
+
+- [Fix] properly validate against extra % signs [`#16`](https://github.com/ljharb/get-intrinsic/issues/16)
+
+### Commits
+
+- [actions] reuse common workflows [`0972547`](https://github.com/ljharb/get-intrinsic/commit/0972547efd0abc863fe4c445a6ca7eb4f8c6901d)
+- [meta] use `npmignore` to autogenerate an npmignore file [`5ba0b51`](https://github.com/ljharb/get-intrinsic/commit/5ba0b51d8d8d4f1c31d426d74abc0770fd106bad)
+- [actions] use `node/install` instead of `node/run`; use `codecov` action [`c364492`](https://github.com/ljharb/get-intrinsic/commit/c364492af4af51333e6f81c0bf21fd3d602c3661)
+- [Dev Deps] update `eslint`, `@ljharb/eslint-config`, `aud`, `auto-changelog`, `es-abstract`, `object-inspect`, `tape` [`dc04dad`](https://github.com/ljharb/get-intrinsic/commit/dc04dad86f6e5608775a2640cb0db5927ae29ed9)
+- [Dev Deps] update `eslint`, `@ljharb/eslint-config`, `es-abstract`, `object-inspect`, `safe-publish-latest`, `tape` [`1c14059`](https://github.com/ljharb/get-intrinsic/commit/1c1405984e86dd2dc9366c15d8a0294a96a146a5)
+- [Tests] use `mock-property` [`b396ef0`](https://github.com/ljharb/get-intrinsic/commit/b396ef05bb73b1d699811abd64b0d9b97997fdda)
+- [Dev Deps] update `eslint`, `@ljharb/eslint-config`, `aud`, `auto-changelog`, `object-inspect`, `tape` [`c2c758d`](https://github.com/ljharb/get-intrinsic/commit/c2c758d3b90af4fef0a76910d8d3c292ec8d1d3e)
+- [Dev Deps] update `eslint`, `@ljharb/eslint-config`, `aud`, `es-abstract`, `es-value-fixtures`, `object-inspect`, `tape` [`29e3c09`](https://github.com/ljharb/get-intrinsic/commit/29e3c091c2bf3e17099969847e8729d0e46896de)
+- [actions] update codecov uploader [`8cbc141`](https://github.com/ljharb/get-intrinsic/commit/8cbc1418940d7a8941f3a7985cbc4ac095c5e13d)
+- [Dev Deps] update `@ljharb/eslint-config`, `es-abstract`, `es-value-fixtures`, `object-inspect`, `tape` [`10b6f5c`](https://github.com/ljharb/get-intrinsic/commit/10b6f5c02593fb3680c581d696ac124e30652932)
+- [readme] add github actions/codecov badges [`4e25400`](https://github.com/ljharb/get-intrinsic/commit/4e25400d9f51ae9eb059cbe22d9144e70ea214e8)
+- [Tests] use `for-each` instead of `foreach` [`c05b957`](https://github.com/ljharb/get-intrinsic/commit/c05b957ad9a7bc7721af7cc9e9be1edbfe057496)
+- [Dev Deps] update `es-abstract` [`29b05ae`](https://github.com/ljharb/get-intrinsic/commit/29b05aec3e7330e9ad0b8e0f685a9112c20cdd97)
+- [meta] use `prepublishOnly` script for npm 7+ [`95c285d`](https://github.com/ljharb/get-intrinsic/commit/95c285da810516057d3bbfa871176031af38f05d)
+- [Deps] update `has-symbols` [`593cb4f`](https://github.com/ljharb/get-intrinsic/commit/593cb4fb38e7922e40e42c183f45274b636424cd)
+- [readme] fix repo URLs [`1c8305b`](https://github.com/ljharb/get-intrinsic/commit/1c8305b5365827c9b6fc785434aac0e1328ff2f5)
+- [Deps] update `has-symbols` [`c7138b6`](https://github.com/ljharb/get-intrinsic/commit/c7138b6c6d73132d859471fb8c13304e1e7c8b20)
+- [Dev Deps] remove unused `has-bigints` [`bd63aff`](https://github.com/ljharb/get-intrinsic/commit/bd63aff6ad8f3a986c557fcda2914187bdaab359)
+
+## [v1.1.1](https://github.com/ljharb/get-intrinsic/compare/v1.1.0...v1.1.1) - 2021-02-03
+
+### Fixed
+
+- [meta] export `./package.json` [`#9`](https://github.com/ljharb/get-intrinsic/issues/9)
+
+### Commits
+
+- [readme] flesh out the readme; use `evalmd` [`d12f12c`](https://github.com/ljharb/get-intrinsic/commit/d12f12c15345a0a0772cc65a7c64369529abd614)
+- [eslint] set up proper globals config [`5a8c098`](https://github.com/ljharb/get-intrinsic/commit/5a8c0984e3319d1ac0e64b102f8ec18b64e79f36)
+- [Dev Deps] update `eslint` [`7b9a5c0`](https://github.com/ljharb/get-intrinsic/commit/7b9a5c0d31a90ca1a1234181c74988fb046701cd)
+
+## [v1.1.0](https://github.com/ljharb/get-intrinsic/compare/v1.0.2...v1.1.0) - 2021-01-25
+
+### Fixed
+
+- [Refactor] delay `Function` eval until syntax-derived values are requested [`#3`](https://github.com/ljharb/get-intrinsic/issues/3)
+
+### Commits
+
+- [Tests] migrate tests to Github Actions [`2ab762b`](https://github.com/ljharb/get-intrinsic/commit/2ab762b48164aea8af37a40ba105bbc8246ab8c4)
+- [meta] do not publish github action workflow files [`5e7108e`](https://github.com/ljharb/get-intrinsic/commit/5e7108e4768b244d48d9567ba4f8a6cab9c65b8e)
+- [Tests] add some coverage [`01ac7a8`](https://github.com/ljharb/get-intrinsic/commit/01ac7a87ac29738567e8524cd8c9e026b1fa8cb3)
+- [Dev Deps] update `eslint`, `@ljharb/eslint-config`, `call-bind`, `es-abstract`, `tape`; add `call-bind` [`911b672`](https://github.com/ljharb/get-intrinsic/commit/911b672fbffae433a96924c6ce013585e425f4b7)
+- [Refactor] rearrange evalled constructors a bit [`7e7e4bf`](https://github.com/ljharb/get-intrinsic/commit/7e7e4bf583f3799c8ac1c6c5e10d2cb553957347)
+- [meta] add Automatic Rebase and Require Allow Edits workflows [`0199968`](https://github.com/ljharb/get-intrinsic/commit/01999687a263ffce0a3cb011dfbcb761754aedbc)
+
+## [v1.0.2](https://github.com/ljharb/get-intrinsic/compare/v1.0.1...v1.0.2) - 2020-12-17
+
+### Commits
+
+- [Fix] Throw for non‑existent intrinsics [`68f873b`](https://github.com/ljharb/get-intrinsic/commit/68f873b013c732a05ad6f5fc54f697e55515461b)
+- [Fix] Throw for non‑existent segments in the intrinsic path [`8325dee`](https://github.com/ljharb/get-intrinsic/commit/8325deee43128f3654d3399aa9591741ebe17b21)
+- [Dev Deps] update `eslint`, `@ljharb/eslint-config`, `aud`, `has-bigints`, `object-inspect` [`0c227a7`](https://github.com/ljharb/get-intrinsic/commit/0c227a7d8b629166f25715fd242553892e458525)
+- [meta] do not lint coverage output [`70d2419`](https://github.com/ljharb/get-intrinsic/commit/70d24199b620043cd9110fc5f426d214ebe21dc9)
+
+## [v1.0.1](https://github.com/ljharb/get-intrinsic/compare/v1.0.0...v1.0.1) - 2020-10-30
+
+### Commits
+
+- [Tests] gather coverage data on every job [`d1d280d`](https://github.com/ljharb/get-intrinsic/commit/d1d280dec714e3f0519cc877dbcb193057d9cac6)
+- [Fix] add missing dependencies [`5031771`](https://github.com/ljharb/get-intrinsic/commit/5031771bb1095b38be88ce7c41d5de88718e432e)
+- [Tests] use `es-value-fixtures` [`af48765`](https://github.com/ljharb/get-intrinsic/commit/af48765a23c5323fb0b6b38dbf00eb5099c7bebc)
+
+## v1.0.0 - 2020-10-29
+
+### Commits
+
+- Implementation [`bbce57c`](https://github.com/ljharb/get-intrinsic/commit/bbce57c6f33d05b2d8d3efa273ceeb3ee01127bb)
+- Tests [`17b4f0d`](https://github.com/ljharb/get-intrinsic/commit/17b4f0d56dea6b4059b56fc30ef3ee4d9500ebc2)
+- Initial commit [`3153294`](https://github.com/ljharb/get-intrinsic/commit/31532948de363b0a27dd9fd4649e7b7028ec4b44)
+- npm init [`fb326c4`](https://github.com/ljharb/get-intrinsic/commit/fb326c4d2817c8419ec31de1295f06bb268a7902)
+- [meta] add Automatic Rebase and Require Allow Edits workflows [`48862fb`](https://github.com/ljharb/get-intrinsic/commit/48862fb2508c8f6a57968e6d08b7c883afc9d550)
+- [meta] add `auto-changelog` [`5f28ad0`](https://github.com/ljharb/get-intrinsic/commit/5f28ad019e060a353d8028f9f2591a9cc93074a1)
+- [meta] add "funding"; create `FUNDING.yml` [`c2bbdde`](https://github.com/ljharb/get-intrinsic/commit/c2bbddeba73a875be61484ee4680b129a6d4e0a1)
+- [Tests] add `npm run lint` [`0a84b98`](https://github.com/ljharb/get-intrinsic/commit/0a84b98b22b7cf7a748666f705b0003a493c35fd)
+- Only apps should have lockfiles [`9586c75`](https://github.com/ljharb/get-intrinsic/commit/9586c75866c1ee678e4d5d4dbbdef6997e511b05)
diff --git a/backend/node_modules/get-intrinsic/LICENSE b/backend/node_modules/get-intrinsic/LICENSE
new file mode 100644
index 0000000..48f05d0
--- /dev/null
+++ b/backend/node_modules/get-intrinsic/LICENSE
@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2020 Jordan Harband
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
diff --git a/backend/node_modules/get-intrinsic/README.md b/backend/node_modules/get-intrinsic/README.md
new file mode 100644
index 0000000..3aa0bba
--- /dev/null
+++ b/backend/node_modules/get-intrinsic/README.md
@@ -0,0 +1,71 @@
+# get-intrinsic <sup>[![Version Badge][npm-version-svg]][package-url]</sup>
+
+[![github actions][actions-image]][actions-url]
+[![coverage][codecov-image]][codecov-url]
+[![dependency status][deps-svg]][deps-url]
+[![dev dependency status][dev-deps-svg]][dev-deps-url]
+[![License][license-image]][license-url]
+[![Downloads][downloads-image]][downloads-url]
+
+[![npm badge][npm-badge-png]][package-url]
+
+Get and robustly cache all JS language-level intrinsics at first require time.
+
+See the syntax described [in the JS spec](https://tc39.es/ecma262/#sec-well-known-intrinsic-objects) for reference.
+
+## Example
+
+```js
+var GetIntrinsic = require('get-intrinsic');
+var assert = require('assert');
+
+// static methods
+assert.equal(GetIntrinsic('%Math.pow%'), Math.pow);
+assert.equal(Math.pow(2, 3), 8);
+assert.equal(GetIntrinsic('%Math.pow%')(2, 3), 8);
+delete Math.pow;
+assert.equal(GetIntrinsic('%Math.pow%')(2, 3), 8);
+
+// instance methods
+var arr = [1];
+assert.equal(GetIntrinsic('%Array.prototype.push%'), Array.prototype.push);
+assert.deepEqual(arr, [1]);
+
+arr.push(2);
+assert.deepEqual(arr, [1, 2]);
+
+GetIntrinsic('%Array.prototype.push%').call(arr, 3);
+assert.deepEqual(arr, [1, 2, 3]);
+
+delete Array.prototype.push;
+GetIntrinsic('%Array.prototype.push%').call(arr, 4);
+assert.deepEqual(arr, [1, 2, 3, 4]);
+
+// missing features
+delete JSON.parse; // to simulate a real intrinsic that is missing in the environment
+assert.throws(() => GetIntrinsic('%JSON.parse%'));
+assert.equal(undefined, GetIntrinsic('%JSON.parse%', true));
+```
+
+## Tests
+Simply clone the repo, `npm install`, and run `npm test`
+
+## Security
+
+Please email [@ljharb](https://github.com/ljharb) or see https://tidelift.com/security if you have a potential security vulnerability to report.
+
+[package-url]: https://npmjs.org/package/get-intrinsic
+[npm-version-svg]: https://versionbadg.es/ljharb/get-intrinsic.svg
+[deps-svg]: https://david-dm.org/ljharb/get-intrinsic.svg
+[deps-url]: https://david-dm.org/ljharb/get-intrinsic
+[dev-deps-svg]: https://david-dm.org/ljharb/get-intrinsic/dev-status.svg
+[dev-deps-url]: https://david-dm.org/ljharb/get-intrinsic#info=devDependencies
+[npm-badge-png]: https://nodei.co/npm/get-intrinsic.png?downloads=true&stars=true
+[license-image]: https://img.shields.io/npm/l/get-intrinsic.svg
+[license-url]: LICENSE
+[downloads-image]: https://img.shields.io/npm/dm/get-intrinsic.svg
+[downloads-url]: https://npm-stat.com/charts.html?package=get-intrinsic
+[codecov-image]: https://codecov.io/gh/ljharb/get-intrinsic/branch/main/graphs/badge.svg
+[codecov-url]: https://app.codecov.io/gh/ljharb/get-intrinsic/
+[actions-image]: https://img.shields.io/endpoint?url=https://github-actions-badge-u3jn4tfpocch.runkit.sh/ljharb/get-intrinsic
+[actions-url]: https://github.com/ljharb/get-intrinsic/actions
diff --git a/backend/node_modules/get-intrinsic/index.js b/backend/node_modules/get-intrinsic/index.js
new file mode 100644
index 0000000..bd1d94b
--- /dev/null
+++ b/backend/node_modules/get-intrinsic/index.js
@@ -0,0 +1,378 @@
+'use strict';
+
+var undefined;
+
+var $Object = require('es-object-atoms');
+
+var $Error = require('es-errors');
+var $EvalError = require('es-errors/eval');
+var $RangeError = require('es-errors/range');
+var $ReferenceError = require('es-errors/ref');
+var $SyntaxError = require('es-errors/syntax');
+var $TypeError = require('es-errors/type');
+var $URIError = require('es-errors/uri');
+
+var abs = require('math-intrinsics/abs');
+var floor = require('math-intrinsics/floor');
+var max = require('math-intrinsics/max');
+var min = require('math-intrinsics/min');
+var pow = require('math-intrinsics/pow');
+var round = require('math-intrinsics/round');
+var sign = require('math-intrinsics/sign');
+
+var $Function = Function;
+
+// eslint-disable-next-line consistent-return
+var getEvalledConstructor = function (expressionSyntax) {
+	try {
+		return $Function('"use strict"; return (' + expressionSyntax + ').constructor;')();
+	} catch (e) {}
+};
+
+var $gOPD = require('gopd');
+var $defineProperty = require('es-define-property');
+
+var throwTypeError = function () {
+	throw new $TypeError();
+};
+var ThrowTypeError = $gOPD
+	? (function () {
+		try {
+			// eslint-disable-next-line no-unused-expressions, no-caller, no-restricted-properties
+			arguments.callee; // IE 8 does not throw here
+			return throwTypeError;
+		} catch (calleeThrows) {
+			try {
+				// IE 8 throws on Object.getOwnPropertyDescriptor(arguments, '')
+				return $gOPD(arguments, 'callee').get;
+			} catch (gOPDthrows) {
+				return throwTypeError;
+			}
+		}
+	}())
+	: throwTypeError;
+
+var hasSymbols = require('has-symbols')();
+
+var getProto = require('get-proto');
+var $ObjectGPO = require('get-proto/Object.getPrototypeOf');
+var $ReflectGPO = require('get-proto/Reflect.getPrototypeOf');
+
+var $apply = require('call-bind-apply-helpers/functionApply');
+var $call = require('call-bind-apply-helpers/functionCall');
+
+var needsEval = {};
+
+var TypedArray = typeof Uint8Array === 'undefined' || !getProto ? undefined : getProto(Uint8Array);
+
+var INTRINSICS = {
+	__proto__: null,
+	'%AggregateError%': typeof AggregateError === 'undefined' ? undefined : AggregateError,
+	'%Array%': Array,
+	'%ArrayBuffer%': typeof ArrayBuffer === 'undefined' ? undefined : ArrayBuffer,
+	'%ArrayIteratorPrototype%': hasSymbols && getProto ? getProto([][Symbol.iterator]()) : undefined,
+	'%AsyncFromSyncIteratorPrototype%': undefined,
+	'%AsyncFunction%': needsEval,
+	'%AsyncGenerator%': needsEval,
+	'%AsyncGeneratorFunction%': needsEval,
+	'%AsyncIteratorPrototype%': needsEval,
+	'%Atomics%': typeof Atomics === 'undefined' ? undefined : Atomics,
+	'%BigInt%': typeof BigInt === 'undefined' ? undefined : BigInt,
+	'%BigInt64Array%': typeof BigInt64Array === 'undefined' ? undefined : BigInt64Array,
+	'%BigUint64Array%': typeof BigUint64Array === 'undefined' ? undefined : BigUint64Array,
+	'%Boolean%': Boolean,
+	'%DataView%': typeof DataView === 'undefined' ? undefined : DataView,
+	'%Date%': Date,
+	'%decodeURI%': decodeURI,
+	'%decodeURIComponent%': decodeURIComponent,
+	'%encodeURI%': encodeURI,
+	'%encodeURIComponent%': encodeURIComponent,
+	'%Error%': $Error,
+	'%eval%': eval, // eslint-disable-line no-eval
+	'%EvalError%': $EvalError,
+	'%Float16Array%': typeof Float16Array === 'undefined' ? undefined : Float16Array,
+	'%Float32Array%': typeof Float32Array === 'undefined' ? undefined : Float32Array,
+	'%Float64Array%': typeof Float64Array === 'undefined' ? undefined : Float64Array,
+	'%FinalizationRegistry%': typeof FinalizationRegistry === 'undefined' ? undefined : FinalizationRegistry,
+	'%Function%': $Function,
+	'%GeneratorFunction%': needsEval,
+	'%Int8Array%': typeof Int8Array === 'undefined' ? undefined : Int8Array,
+	'%Int16Array%': typeof Int16Array === 'undefined' ? undefined : Int16Array,
+	'%Int32Array%': typeof Int32Array === 'undefined' ? undefined : Int32Array,
+	'%isFinite%': isFinite,
+	'%isNaN%': isNaN,
+	'%IteratorPrototype%': hasSymbols && getProto ? getProto(getProto([][Symbol.iterator]())) : undefined,
+	'%JSON%': typeof JSON === 'object' ? JSON : undefined,
+	'%Map%': typeof Map === 'undefined' ? undefined : Map,
+	'%MapIteratorPrototype%': typeof Map === 'undefined' || !hasSymbols || !getProto ? undefined : getProto(new Map()[Symbol.iterator]()),
+	'%Math%': Math,
+	'%Number%': Number,
+	'%Object%': $Object,
+	'%Object.getOwnPropertyDescriptor%': $gOPD,
+	'%parseFloat%': parseFloat,
+	'%parseInt%': parseInt,
+	'%Promise%': typeof Promise === 'undefined' ? undefined : Promise,
+	'%Proxy%': typeof Proxy === 'undefined' ? undefined : Proxy,
+	'%RangeError%': $RangeError,
+	'%ReferenceError%': $ReferenceError,
+	'%Reflect%': typeof Reflect === 'undefined' ? undefined : Reflect,
+	'%RegExp%': RegExp,
+	'%Set%': typeof Set === 'undefined' ? undefined : Set,
+	'%SetIteratorPrototype%': typeof Set === 'undefined' || !hasSymbols || !getProto ? undefined : getProto(new Set()[Symbol.iterator]()),
+	'%SharedArrayBuffer%': typeof SharedArrayBuffer === 'undefined' ? undefined : SharedArrayBuffer,
+	'%String%': String,
+	'%StringIteratorPrototype%': hasSymbols && getProto ? getProto(''[Symbol.iterator]()) : undefined,
+	'%Symbol%': hasSymbols ? Symbol : undefined,
+	'%SyntaxError%': $SyntaxError,
+	'%ThrowTypeError%': ThrowTypeError,
+	'%TypedArray%': TypedArray,
+	'%TypeError%': $TypeError,
+	'%Uint8Array%': typeof Uint8Array === 'undefined' ? undefined : Uint8Array,
+	'%Uint8ClampedArray%': typeof Uint8ClampedArray === 'undefined' ? undefined : Uint8ClampedArray,
+	'%Uint16Array%': typeof Uint16Array === 'undefined' ? undefined : Uint16Array,
+	'%Uint32Array%': typeof Uint32Array === 'undefined' ? undefined : Uint32Array,
+	'%URIError%': $URIError,
+	'%WeakMap%': typeof WeakMap === 'undefined' ? undefined : WeakMap,
+	'%WeakRef%': typeof WeakRef === 'undefined' ? undefined : WeakRef,
+	'%WeakSet%': typeof WeakSet === 'undefined' ? undefined : WeakSet,
+
+	'%Function.prototype.call%': $call,
+	'%Function.prototype.apply%': $apply,
+	'%Object.defineProperty%': $defineProperty,
+	'%Object.getPrototypeOf%': $ObjectGPO,
+	'%Math.abs%': abs,
+	'%Math.floor%': floor,
+	'%Math.max%': max,
+	'%Math.min%': min,
+	'%Math.pow%': pow,
+	'%Math.round%': round,
+	'%Math.sign%': sign,
+	'%Reflect.getPrototypeOf%': $ReflectGPO
+};
+
+if (getProto) {
+	try {
+		null.error; // eslint-disable-line no-unused-expressions
+	} catch (e) {
+		// https://github.com/tc39/proposal-shadowrealm/pull/384#issuecomment-1364264229
+		var errorProto = getProto(getProto(e));
+		INTRINSICS['%Error.prototype%'] = errorProto;
+	}
+}
+
+var doEval = function doEval(name) {
+	var value;
+	if (name === '%AsyncFunction%') {
+		value = getEvalledConstructor('async function () {}');
+	} else if (name === '%GeneratorFunction%') {
+		value = getEvalledConstructor('function* () {}');
+	} else if (name === '%AsyncGeneratorFunction%') {
+		value = getEvalledConstructor('async function* () {}');
+	} else if (name === '%AsyncGenerator%') {
+		var fn = doEval('%AsyncGeneratorFunction%');
+		if (fn) {
+			value = fn.prototype;
+		}
+	} else if (name === '%AsyncIteratorPrototype%') {
+		var gen = doEval('%AsyncGenerator%');
+		if (gen && getProto) {
+			value = getProto(gen.prototype);
+		}
+	}
+
+	INTRINSICS[name] = value;
+
+	return value;
+};
+
+var LEGACY_ALIASES = {
+	__proto__: null,
+	'%ArrayBufferPrototype%': ['ArrayBuffer', 'prototype'],
+	'%ArrayPrototype%': ['Array', 'prototype'],
+	'%ArrayProto_entries%': ['Array', 'prototype', 'entries'],
+	'%ArrayProto_forEach%': ['Array', 'prototype', 'forEach'],
+	'%ArrayProto_keys%': ['Array', 'prototype', 'keys'],
+	'%ArrayProto_values%': ['Array', 'prototype', 'values'],
+	'%AsyncFunctionPrototype%': ['AsyncFunction', 'prototype'],
+	'%AsyncGenerator%': ['AsyncGeneratorFunction', 'prototype'],
+	'%AsyncGeneratorPrototype%': ['AsyncGeneratorFunction', 'prototype', 'prototype'],
+	'%BooleanPrototype%': ['Boolean', 'prototype'],
+	'%DataViewPrototype%': ['DataView', 'prototype'],
+	'%DatePrototype%': ['Date', 'prototype'],
+	'%ErrorPrototype%': ['Error', 'prototype'],
+	'%EvalErrorPrototype%': ['EvalError', 'prototype'],
+	'%Float32ArrayPrototype%': ['Float32Array', 'prototype'],
+	'%Float64ArrayPrototype%': ['Float64Array', 'prototype'],
+	'%FunctionPrototype%': ['Function', 'prototype'],
+	'%Generator%': ['GeneratorFunction', 'prototype'],
+	'%GeneratorPrototype%': ['GeneratorFunction', 'prototype', 'prototype'],
+	'%Int8ArrayPrototype%': ['Int8Array', 'prototype'],
+	'%Int16ArrayPrototype%': ['Int16Array', 'prototype'],
+	'%Int32ArrayPrototype%': ['Int32Array', 'prototype'],
+	'%JSONParse%': ['JSON', 'parse'],
+	'%JSONStringify%': ['JSON', 'stringify'],
+	'%MapPrototype%': ['Map', 'prototype'],
+	'%NumberPrototype%': ['Number', 'prototype'],
+	'%ObjectPrototype%': ['Object', 'prototype'],
+	'%ObjProto_toString%': ['Object', 'prototype', 'toString'],
+	'%ObjProto_valueOf%': ['Object', 'prototype', 'valueOf'],
+	'%PromisePrototype%': ['Promise', 'prototype'],
+	'%PromiseProto_then%': ['Promise', 'prototype', 'then'],
+	'%Promise_all%': ['Promise', 'all'],
+	'%Promise_reject%': ['Promise', 'reject'],
+	'%Promise_resolve%': ['Promise', 'resolve'],
+	'%RangeErrorPrototype%': ['RangeError', 'prototype'],
+	'%ReferenceErrorPrototype%': ['ReferenceError', 'prototype'],
+	'%RegExpPrototype%': ['RegExp', 'prototype'],
+	'%SetPrototype%': ['Set', 'prototype'],
+	'%SharedArrayBufferPrototype%': ['SharedArrayBuffer', 'prototype'],
+	'%StringPrototype%': ['String', 'prototype'],
+	'%SymbolPrototype%': ['Symbol', 'prototype'],
+	'%SyntaxErrorPrototype%': ['SyntaxError', 'prototype'],
+	'%TypedArrayPrototype%': ['TypedArray', 'prototype'],
+	'%TypeErrorPrototype%': ['TypeError', 'prototype'],
+	'%Uint8ArrayPrototype%': ['Uint8Array', 'prototype'],
+	'%Uint8ClampedArrayPrototype%': ['Uint8ClampedArray', 'prototype'],
+	'%Uint16ArrayPrototype%': ['Uint16Array', 'prototype'],
+	'%Uint32ArrayPrototype%': ['Uint32Array', 'prototype'],
+	'%URIErrorPrototype%': ['URIError', 'prototype'],
+	'%WeakMapPrototype%': ['WeakMap', 'prototype'],
+	'%WeakSetPrototype%': ['WeakSet', 'prototype']
+};
+
+var bind = require('function-bind');
+var hasOwn = require('hasown');
+var $concat = bind.call($call, Array.prototype.concat);
+var $spliceApply = bind.call($apply, Array.prototype.splice);
+var $replace = bind.call($call, String.prototype.replace);
+var $strSlice = bind.call($call, String.prototype.slice);
+var $exec = bind.call($call, RegExp.prototype.exec);
+
+/* adapted from https://github.com/lodash/lodash/blob/4.17.15/dist/lodash.js#L6735-L6744 */
+var rePropName = /[^%.[\]]+|\[(?:(-?\d+(?:\.\d+)?)|(["'])((?:(?!\2)[^\\]|\\.)*?)\2)\]|(?=(?:\.|\[\])(?:\.|\[\]|%$))/g;
+var reEscapeChar = /\\(\\)?/g; /** Used to match backslashes in property paths. */
+var stringToPath = function stringToPath(string) {
+	var first = $strSlice(string, 0, 1);
+	var last = $strSlice(string, -1);
+	if (first === '%' && last !== '%') {
+		throw new $SyntaxError('invalid intrinsic syntax, expected closing `%`');
+	} else if (last === '%' && first !== '%') {
+		throw new $SyntaxError('invalid intrinsic syntax, expected opening `%`');
+	}
+	var result = [];
+	$replace(string, rePropName, function (match, number, quote, subString) {
+		result[result.length] = quote ? $replace(subString, reEscapeChar, '$1') : number || match;
+	});
+	return result;
+};
+/* end adaptation */
+
+var getBaseIntrinsic = function getBaseIntrinsic(name, allowMissing) {
+	var intrinsicName = name;
+	var alias;
+	if (hasOwn(LEGACY_ALIASES, intrinsicName)) {
+		alias = LEGACY_ALIASES[intrinsicName];
+		intrinsicName = '%' + alias[0] + '%';
+	}
+
+	if (hasOwn(INTRINSICS, intrinsicName)) {
+		var value = INTRINSICS[intrinsicName];
+		if (value === needsEval) {
+			value = doEval(intrinsicName);
+		}
+		if (typeof value === 'undefined' && !allowMissing) {
+			throw new $TypeError('intrinsic ' + name + ' exists, but is not available. Please file an issue!');
+		}
+
+		return {
+			alias: alias,
+			name: intrinsicName,
+			value: value
+		};
+	}
+
+	throw new $SyntaxError('intrinsic ' + name + ' does not exist!');
+};
+
+module.exports = function GetIntrinsic(name, allowMissing) {
+	if (typeof name !== 'string' || name.length === 0) {
+		throw new $TypeError('intrinsic name must be a non-empty string');
+	}
+	if (arguments.length > 1 && typeof allowMissing !== 'boolean') {
+		throw new $TypeError('"allowMissing" argument must be a boolean');
+	}
+
+	if ($exec(/^%?[^%]*%?$/, name) === null) {
+		throw new $SyntaxError('`%` may not be present anywhere but at the beginning and end of the intrinsic name');
+	}
+	var parts = stringToPath(name);
+	var intrinsicBaseName = parts.length > 0 ? parts[0] : '';
+
+	var intrinsic = getBaseIntrinsic('%' + intrinsicBaseName + '%', allowMissing);
+	var intrinsicRealName = intrinsic.name;
+	var value = intrinsic.value;
+	var skipFurtherCaching = false;
+
+	var alias = intrinsic.alias;
+	if (alias) {
+		intrinsicBaseName = alias[0];
+		$spliceApply(parts, $concat([0, 1], alias));
+	}
+
+	for (var i = 1, isOwn = true; i < parts.length; i += 1) {
+		var part = parts[i];
+		var first = $strSlice(part, 0, 1);
+		var last = $strSlice(part, -1);
+		if (
+			(
+				(first === '"' || first === "'" || first === '`')
+				|| (last === '"' || last === "'" || last === '`')
+			)
+			&& first !== last
+		) {
+			throw new $SyntaxError('property names with quotes must have matching quotes');
+		}
+		if (part === 'constructor' || !isOwn) {
+			skipFurtherCaching = true;
+		}
+
+		intrinsicBaseName += '.' + part;
+		intrinsicRealName = '%' + intrinsicBaseName + '%';
+
+		if (hasOwn(INTRINSICS, intrinsicRealName)) {
+			value = INTRINSICS[intrinsicRealName];
+		} else if (value != null) {
+			if (!(part in value)) {
+				if (!allowMissing) {
+					throw new $TypeError('base intrinsic for ' + name + ' exists, but the property is not available.');
+				}
+				return void undefined;
+			}
+			if ($gOPD && (i + 1) >= parts.length) {
+				var desc = $gOPD(value, part);
+				isOwn = !!desc;
+
+				// By convention, when a data property is converted to an accessor
+				// property to emulate a data property that does not suffer from
+				// the override mistake, that accessor's getter is marked with
+				// an `originalValue` property. Here, when we detect this, we
+				// uphold the illusion by pretending to see that original data
+				// property, i.e., returning the value rather than the getter
+				// itself.
+				if (isOwn && 'get' in desc && !('originalValue' in desc.get)) {
+					value = desc.get;
+				} else {
+					value = value[part];
+				}
+			} else {
+				isOwn = hasOwn(value, part);
+				value = value[part];
+			}
+
+			if (isOwn && !skipFurtherCaching) {
+				INTRINSICS[intrinsicRealName] = value;
+			}
+		}
+	}
+	return value;
+};
diff --git a/backend/node_modules/get-intrinsic/package.json b/backend/node_modules/get-intrinsic/package.json
new file mode 100644
index 0000000..2828e73
--- /dev/null
+++ b/backend/node_modules/get-intrinsic/package.json
@@ -0,0 +1,97 @@
+{
+	"name": "get-intrinsic",
+	"version": "1.3.0",
+	"description": "Get and robustly cache all JS language-level intrinsics at first require time",
+	"main": "index.js",
+	"exports": {
+		".": "./index.js",
+		"./package.json": "./package.json"
+	},
+	"sideEffects": false,
+	"scripts": {
+		"prepack": "npmignore --auto --commentLines=autogenerated",
+		"prepublish": "not-in-publish || npm run prepublishOnly",
+		"prepublishOnly": "safe-publish-latest",
+		"prelint": "evalmd README.md",
+		"lint": "eslint --ext=.js,.mjs .",
+		"pretest": "npm run lint",
+		"tests-only": "nyc tape 'test/**/*.js'",
+		"test": "npm run tests-only",
+		"posttest": "npx npm@'>= 10.2' audit --production",
+		"version": "auto-changelog && git add CHANGELOG.md",
+		"postversion": "auto-changelog && git add CHANGELOG.md && git commit --no-edit --amend && git tag -f \"v$(node -e \"console.log(require('./package.json').version)\")\""
+	},
+	"repository": {
+		"type": "git",
+		"url": "git+https://github.com/ljharb/get-intrinsic.git"
+	},
+	"keywords": [
+		"javascript",
+		"ecmascript",
+		"es",
+		"js",
+		"intrinsic",
+		"getintrinsic",
+		"es-abstract"
+	],
+	"author": "Jordan Harband <ljharb@gmail.com>",
+	"funding": {
+		"url": "https://github.com/sponsors/ljharb"
+	},
+	"license": "MIT",
+	"bugs": {
+		"url": "https://github.com/ljharb/get-intrinsic/issues"
+	},
+	"homepage": "https://github.com/ljharb/get-intrinsic#readme",
+	"dependencies": {
+		"call-bind-apply-helpers": "^1.0.2",
+		"es-define-property": "^1.0.1",
+		"es-errors": "^1.3.0",
+		"es-object-atoms": "^1.1.1",
+		"function-bind": "^1.1.2",
+		"get-proto": "^1.0.1",
+		"gopd": "^1.2.0",
+		"has-symbols": "^1.1.0",
+		"hasown": "^2.0.2",
+		"math-intrinsics": "^1.1.0"
+	},
+	"devDependencies": {
+		"@ljharb/eslint-config": "^21.1.1",
+		"auto-changelog": "^2.5.0",
+		"call-bound": "^1.0.3",
+		"encoding": "^0.1.13",
+		"es-abstract": "^1.23.9",
+		"es-value-fixtures": "^1.7.1",
+		"eslint": "=8.8.0",
+		"evalmd": "^0.0.19",
+		"for-each": "^0.3.5",
+		"make-async-function": "^1.0.0",
+		"make-async-generator-function": "^1.0.0",
+		"make-generator-function": "^2.0.0",
+		"mock-property": "^1.1.0",
+		"npmignore": "^0.3.1",
+		"nyc": "^10.3.2",
+		"object-inspect": "^1.13.4",
+		"safe-publish-latest": "^2.0.0",
+		"tape": "^5.9.0"
+	},
+	"auto-changelog": {
+		"output": "CHANGELOG.md",
+		"template": "keepachangelog",
+		"unreleased": false,
+		"commitLimit": false,
+		"backfillLimit": false,
+		"hideCredit": true
+	},
+	"testling": {
+		"files": "test/GetIntrinsic.js"
+	},
+	"publishConfig": {
+		"ignore": [
+			".github/workflows"
+		]
+	},
+	"engines": {
+		"node": ">= 0.4"
+	}
+}
diff --git a/backend/node_modules/get-intrinsic/test/GetIntrinsic.js b/backend/node_modules/get-intrinsic/test/GetIntrinsic.js
new file mode 100644
index 0000000..d9c0f30
--- /dev/null
+++ b/backend/node_modules/get-intrinsic/test/GetIntrinsic.js
@@ -0,0 +1,274 @@
+'use strict';
+
+var GetIntrinsic = require('../');
+
+var test = require('tape');
+var forEach = require('for-each');
+var debug = require('object-inspect');
+var generatorFns = require('make-generator-function')();
+var asyncFns = require('make-async-function').list();
+var asyncGenFns = require('make-async-generator-function')();
+var mockProperty = require('mock-property');
+
+var callBound = require('call-bound');
+var v = require('es-value-fixtures');
+var $gOPD = require('gopd');
+var DefinePropertyOrThrow = require('es-abstract/2023/DefinePropertyOrThrow');
+
+var $isProto = callBound('%Object.prototype.isPrototypeOf%');
+
+test('export', function (t) {
+	t.equal(typeof GetIntrinsic, 'function', 'it is a function');
+	t.equal(GetIntrinsic.length, 2, 'function has length of 2');
+
+	t.end();
+});
+
+test('throws', function (t) {
+	t['throws'](
+		function () { GetIntrinsic('not an intrinsic'); },
+		SyntaxError,
+		'nonexistent intrinsic throws a syntax error'
+	);
+
+	t['throws'](
+		function () { GetIntrinsic(''); },
+		TypeError,
+		'empty string intrinsic throws a type error'
+	);
+
+	t['throws'](
+		function () { GetIntrinsic('.'); },
+		SyntaxError,
+		'"just a dot" intrinsic throws a syntax error'
+	);
+
+	t['throws'](
+		function () { GetIntrinsic('%String'); },
+		SyntaxError,
+		'Leading % without trailing % throws a syntax error'
+	);
+
+	t['throws'](
+		function () { GetIntrinsic('String%'); },
+		SyntaxError,
+		'Trailing % without leading % throws a syntax error'
+	);
+
+	t['throws'](
+		function () { GetIntrinsic("String['prototype]"); },
+		SyntaxError,
+		'Dynamic property access is disallowed for intrinsics (unterminated string)'
+	);
+
+	t['throws'](
+		function () { GetIntrinsic('%Proxy.prototype.undefined%'); },
+		TypeError,
+		"Throws when middle part doesn't exist (%Proxy.prototype.undefined%)"
+	);
+
+	t['throws'](
+		function () { GetIntrinsic('%Array.prototype%garbage%'); },
+		SyntaxError,
+		'Throws with extra percent signs'
+	);
+
+	t['throws'](
+		function () { GetIntrinsic('%Array.prototype%push%'); },
+		SyntaxError,
+		'Throws with extra percent signs, even on an existing intrinsic'
+	);
+
+	forEach(v.nonStrings, function (nonString) {
+		t['throws'](
+			function () { GetIntrinsic(nonString); },
+			TypeError,
+			debug(nonString) + ' is not a String'
+		);
+	});
+
+	forEach(v.nonBooleans, function (nonBoolean) {
+		t['throws'](
+			function () { GetIntrinsic('%', nonBoolean); },
+			TypeError,
+			debug(nonBoolean) + ' is not a Boolean'
+		);
+	});
+
+	forEach([
+		'toString',
+		'propertyIsEnumerable',
+		'hasOwnProperty'
+	], function (objectProtoMember) {
+		t['throws'](
+			function () { GetIntrinsic(objectProtoMember); },
+			SyntaxError,
+			debug(objectProtoMember) + ' is not an intrinsic'
+		);
+	});
+
+	t.end();
+});
+
+test('base intrinsics', function (t) {
+	t.equal(GetIntrinsic('%Object%'), Object, '%Object% yields Object');
+	t.equal(GetIntrinsic('Object'), Object, 'Object yields Object');
+	t.equal(GetIntrinsic('%Array%'), Array, '%Array% yields Array');
+	t.equal(GetIntrinsic('Array'), Array, 'Array yields Array');
+
+	t.end();
+});
+
+test('dotted paths', function (t) {
+	t.equal(GetIntrinsic('%Object.prototype.toString%'), Object.prototype.toString, '%Object.prototype.toString% yields Object.prototype.toString');
+	t.equal(GetIntrinsic('Object.prototype.toString'), Object.prototype.toString, 'Object.prototype.toString yields Object.prototype.toString');
+	t.equal(GetIntrinsic('%Array.prototype.push%'), Array.prototype.push, '%Array.prototype.push% yields Array.prototype.push');
+	t.equal(GetIntrinsic('Array.prototype.push'), Array.prototype.push, 'Array.prototype.push yields Array.prototype.push');
+
+	test('underscore paths are aliases for dotted paths', { skip: !Object.isFrozen || Object.isFrozen(Object.prototype) }, function (st) {
+		var original = GetIntrinsic('%ObjProto_toString%');
+
+		forEach([
+			'%Object.prototype.toString%',
+			'Object.prototype.toString',
+			'%ObjectPrototype.toString%',
+			'ObjectPrototype.toString',
+			'%ObjProto_toString%',
+			'ObjProto_toString'
+		], function (name) {
+			DefinePropertyOrThrow(Object.prototype, 'toString', {
+				'[[Value]]': function toString() {
+					return original.apply(this, arguments);
+				}
+			});
+			st.equal(GetIntrinsic(name), original, name + ' yields original Object.prototype.toString');
+		});
+
+		DefinePropertyOrThrow(Object.prototype, 'toString', { '[[Value]]': original });
+		st.end();
+	});
+
+	test('dotted paths cache', { skip: !Object.isFrozen || Object.isFrozen(Object.prototype) }, function (st) {
+		var original = GetIntrinsic('%Object.prototype.propertyIsEnumerable%');
+
+		forEach([
+			'%Object.prototype.propertyIsEnumerable%',
+			'Object.prototype.propertyIsEnumerable',
+			'%ObjectPrototype.propertyIsEnumerable%',
+			'ObjectPrototype.propertyIsEnumerable'
+		], function (name) {
+			var restore = mockProperty(Object.prototype, 'propertyIsEnumerable', {
+				value: function propertyIsEnumerable() {
+					return original.apply(this, arguments);
+				}
+			});
+			st.equal(GetIntrinsic(name), original, name + ' yields cached Object.prototype.propertyIsEnumerable');
+
+			restore();
+		});
+
+		st.end();
+	});
+
+	test('dotted path reports correct error', function (st) {
+		st['throws'](function () {
+			GetIntrinsic('%NonExistentIntrinsic.prototype.property%');
+		}, /%NonExistentIntrinsic%/, 'The base intrinsic of %NonExistentIntrinsic.prototype.property% is %NonExistentIntrinsic%');
+
+		st['throws'](function () {
+			GetIntrinsic('%NonExistentIntrinsicPrototype.property%');
+		}, /%NonExistentIntrinsicPrototype%/, 'The base intrinsic of %NonExistentIntrinsicPrototype.property% is %NonExistentIntrinsicPrototype%');
+
+		st.end();
+	});
+
+	t.end();
+});
+
+test('accessors', { skip: !$gOPD || typeof Map !== 'function' }, function (t) {
+	var actual = $gOPD(Map.prototype, 'size');
+	t.ok(actual, 'Map.prototype.size has a descriptor');
+	t.equal(typeof actual.get, 'function', 'Map.prototype.size has a getter function');
+	t.equal(GetIntrinsic('%Map.prototype.size%'), actual.get, '%Map.prototype.size% yields the getter for it');
+	t.equal(GetIntrinsic('Map.prototype.size'), actual.get, 'Map.prototype.size yields the getter for it');
+
+	t.end();
+});
+
+test('generator functions', { skip: !generatorFns.length }, function (t) {
+	var $GeneratorFunction = GetIntrinsic('%GeneratorFunction%');
+	var $GeneratorFunctionPrototype = GetIntrinsic('%Generator%');
+	var $GeneratorPrototype = GetIntrinsic('%GeneratorPrototype%');
+
+	forEach(generatorFns, function (genFn) {
+		var fnName = genFn.name;
+		fnName = fnName ? "'" + fnName + "'" : 'genFn';
+
+		t.ok(genFn instanceof $GeneratorFunction, fnName + ' instanceof %GeneratorFunction%');
+		t.ok($isProto($GeneratorFunctionPrototype, genFn), '%Generator% is prototype of ' + fnName);
+		t.ok($isProto($GeneratorPrototype, genFn.prototype), '%GeneratorPrototype% is prototype of ' + fnName + '.prototype');
+	});
+
+	t.end();
+});
+
+test('async functions', { skip: !asyncFns.length }, function (t) {
+	var $AsyncFunction = GetIntrinsic('%AsyncFunction%');
+	var $AsyncFunctionPrototype = GetIntrinsic('%AsyncFunctionPrototype%');
+
+	forEach(asyncFns, function (asyncFn) {
+		var fnName = asyncFn.name;
+		fnName = fnName ? "'" + fnName + "'" : 'asyncFn';
+
+		t.ok(asyncFn instanceof $AsyncFunction, fnName + ' instanceof %AsyncFunction%');
+		t.ok($isProto($AsyncFunctionPrototype, asyncFn), '%AsyncFunctionPrototype% is prototype of ' + fnName);
+	});
+
+	t.end();
+});
+
+test('async generator functions', { skip: asyncGenFns.length === 0 }, function (t) {
+	var $AsyncGeneratorFunction = GetIntrinsic('%AsyncGeneratorFunction%');
+	var $AsyncGeneratorFunctionPrototype = GetIntrinsic('%AsyncGenerator%');
+	var $AsyncGeneratorPrototype = GetIntrinsic('%AsyncGeneratorPrototype%');
+
+	forEach(asyncGenFns, function (asyncGenFn) {
+		var fnName = asyncGenFn.name;
+		fnName = fnName ? "'" + fnName + "'" : 'asyncGenFn';
+
+		t.ok(asyncGenFn instanceof $AsyncGeneratorFunction, fnName + ' instanceof %AsyncGeneratorFunction%');
+		t.ok($isProto($AsyncGeneratorFunctionPrototype, asyncGenFn), '%AsyncGenerator% is prototype of ' + fnName);
+		t.ok($isProto($AsyncGeneratorPrototype, asyncGenFn.prototype), '%AsyncGeneratorPrototype% is prototype of ' + fnName + '.prototype');
+	});
+
+	t.end();
+});
+
+test('%ThrowTypeError%', function (t) {
+	var $ThrowTypeError = GetIntrinsic('%ThrowTypeError%');
+
+	t.equal(typeof $ThrowTypeError, 'function', 'is a function');
+	t['throws'](
+		$ThrowTypeError,
+		TypeError,
+		'%ThrowTypeError% throws a TypeError'
+	);
+
+	t.end();
+});
+
+test('allowMissing', { skip: asyncGenFns.length > 0 }, function (t) {
+	t['throws'](
+		function () { GetIntrinsic('%AsyncGeneratorPrototype%'); },
+		TypeError,
+		'throws when missing'
+	);
+
+	t.equal(
+		GetIntrinsic('%AsyncGeneratorPrototype%', true),
+		undefined,
+		'does not throw when allowMissing'
+	);
+
+	t.end();
+});
diff --git a/backend/node_modules/get-proto/.eslintrc b/backend/node_modules/get-proto/.eslintrc
new file mode 100644
index 0000000..1d21a8a
--- /dev/null
+++ b/backend/node_modules/get-proto/.eslintrc
@@ -0,0 +1,10 @@
+{
+	"root": true,
+
+	"extends": "@ljharb",
+
+	"rules": {
+		"id-length": "off",
+		"sort-keys": "off",
+	},
+}
diff --git a/backend/node_modules/get-proto/.github/FUNDING.yml b/backend/node_modules/get-proto/.github/FUNDING.yml
new file mode 100644
index 0000000..93183ef
--- /dev/null
+++ b/backend/node_modules/get-proto/.github/FUNDING.yml
@@ -0,0 +1,12 @@
+# These are supported funding model platforms
+
+github: [ljharb]
+patreon: # Replace with a single Patreon username
+open_collective: # Replace with a single Open Collective username
+ko_fi: # Replace with a single Ko-fi username
+tidelift: npm/get-proto
+community_bridge: # Replace with a single Community Bridge project-name e.g., cloud-foundry
+liberapay: # Replace with a single Liberapay username
+issuehunt: # Replace with a single IssueHunt username
+otechie: # Replace with a single Otechie username
+custom: # Replace with up to 4 custom sponsorship URLs e.g., ['link1', 'link2']
diff --git a/backend/node_modules/get-proto/.nycrc b/backend/node_modules/get-proto/.nycrc
new file mode 100644
index 0000000..bdd626c
--- /dev/null
+++ b/backend/node_modules/get-proto/.nycrc
@@ -0,0 +1,9 @@
+{
+	"all": true,
+	"check-coverage": false,
+	"reporter": ["text-summary", "text", "html", "json"],
+	"exclude": [
+		"coverage",
+		"test"
+	]
+}
diff --git a/backend/node_modules/get-proto/CHANGELOG.md b/backend/node_modules/get-proto/CHANGELOG.md
new file mode 100644
index 0000000..5860229
--- /dev/null
+++ b/backend/node_modules/get-proto/CHANGELOG.md
@@ -0,0 +1,21 @@
+# Changelog
+
+All notable changes to this project will be documented in this file.
+
+The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/)
+and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
+
+## [v1.0.1](https://github.com/ljharb/get-proto/compare/v1.0.0...v1.0.1) - 2025-01-02
+
+### Commits
+
+- [Fix] for the `Object.getPrototypeOf` window, throw for non-objects [`7fe6508`](https://github.com/ljharb/get-proto/commit/7fe6508b71419ebe1976bedb86001d1feaeaa49a)
+
+## v1.0.0 - 2025-01-01
+
+### Commits
+
+- Initial implementation, tests, readme, types [`5c70775`](https://github.com/ljharb/get-proto/commit/5c707751e81c3deeb2cf980d185fc7fd43611415)
+- Initial commit [`7c65c2a`](https://github.com/ljharb/get-proto/commit/7c65c2ad4e33d5dae2f219ebe1a046ae2256972c)
+- npm init [`0b8cf82`](https://github.com/ljharb/get-proto/commit/0b8cf824c9634e4a34ef7dd2a2cdc5be6ac79518)
+- Only apps should have lockfiles [`a6d1bff`](https://github.com/ljharb/get-proto/commit/a6d1bffc364f5828377cea7194558b2dbef7aea2)
diff --git a/backend/node_modules/get-proto/LICENSE b/backend/node_modules/get-proto/LICENSE
new file mode 100644
index 0000000..eeabd1c
--- /dev/null
+++ b/backend/node_modules/get-proto/LICENSE
@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2025 Jordan Harband
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
diff --git a/backend/node_modules/get-proto/Object.getPrototypeOf.d.ts b/backend/node_modules/get-proto/Object.getPrototypeOf.d.ts
new file mode 100644
index 0000000..028b3ff
--- /dev/null
+++ b/backend/node_modules/get-proto/Object.getPrototypeOf.d.ts
@@ -0,0 +1,5 @@
+declare function getProto<O extends object>(object: O): object | null;
+
+declare const x: typeof getProto | null;
+
+export = x;
\ No newline at end of file
diff --git a/backend/node_modules/get-proto/Object.getPrototypeOf.js b/backend/node_modules/get-proto/Object.getPrototypeOf.js
new file mode 100644
index 0000000..c2cbbdf
--- /dev/null
+++ b/backend/node_modules/get-proto/Object.getPrototypeOf.js
@@ -0,0 +1,6 @@
+'use strict';
+
+var $Object = require('es-object-atoms');
+
+/** @type {import('./Object.getPrototypeOf')} */
+module.exports = $Object.getPrototypeOf || null;
diff --git a/backend/node_modules/get-proto/README.md b/backend/node_modules/get-proto/README.md
new file mode 100644
index 0000000..f8b4cce
--- /dev/null
+++ b/backend/node_modules/get-proto/README.md
@@ -0,0 +1,50 @@
+# get-proto <sup>[![Version Badge][npm-version-svg]][package-url]</sup>
+
+[![github actions][actions-image]][actions-url]
+[![coverage][codecov-image]][codecov-url]
+[![License][license-image]][license-url]
+[![Downloads][downloads-image]][downloads-url]
+
+[![npm badge][npm-badge-png]][package-url]
+
+Robustly get the [[Prototype]] of an object. Uses the best available method.
+
+## Getting started
+
+```sh
+npm install --save get-proto
+```
+
+## Usage/Examples
+
+```js
+const assert = require('assert');
+const getProto = require('get-proto');
+
+const a = { a: 1, b: 2, [Symbol.toStringTag]: 'foo' };
+const b = { c: 3, __proto__: a };
+
+assert.equal(getProto(b), a);
+assert.equal(getProto(a), Object.prototype);
+assert.equal(getProto({ __proto__: null }), null);
+```
+
+## Tests
+
+Clone the repo, `npm install`, and run `npm test`
+
+[package-url]: https://npmjs.org/package/get-proto
+[npm-version-svg]: https://versionbadg.es/ljharb/get-proto.svg
+[deps-svg]: https://david-dm.org/ljharb/get-proto.svg
+[deps-url]: https://david-dm.org/ljharb/get-proto
+[dev-deps-svg]: https://david-dm.org/ljharb/get-proto/dev-status.svg
+[dev-deps-url]: https://david-dm.org/ljharb/get-proto#info=devDependencies
+[npm-badge-png]: https://nodei.co/npm/get-proto.png?downloads=true&stars=true
+[license-image]: https://img.shields.io/npm/l/get-proto.svg
+[license-url]: LICENSE
+[downloads-image]: https://img.shields.io/npm/dm/get-proto.svg
+[downloads-url]: https://npm-stat.com/charts.html?package=get-proto
+[codecov-image]: https://codecov.io/gh/ljharb/get-proto/branch/main/graphs/badge.svg
+[codecov-url]: https://app.codecov.io/gh/ljharb/get-proto/
+[actions-image]: https://img.shields.io/endpoint?url=https://github-actions-badge-u3jn4tfpocch.runkit.sh/ljharb/get-proto
+[actions-url]: https://github.com/ljharb/get-proto/actions
diff --git a/backend/node_modules/get-proto/Reflect.getPrototypeOf.d.ts b/backend/node_modules/get-proto/Reflect.getPrototypeOf.d.ts
new file mode 100644
index 0000000..2388fe0
--- /dev/null
+++ b/backend/node_modules/get-proto/Reflect.getPrototypeOf.d.ts
@@ -0,0 +1,3 @@
+declare const x: typeof Reflect.getPrototypeOf | null;
+
+export = x;
\ No newline at end of file
diff --git a/backend/node_modules/get-proto/Reflect.getPrototypeOf.js b/backend/node_modules/get-proto/Reflect.getPrototypeOf.js
new file mode 100644
index 0000000..e6c51be
--- /dev/null
+++ b/backend/node_modules/get-proto/Reflect.getPrototypeOf.js
@@ -0,0 +1,4 @@
+'use strict';
+
+/** @type {import('./Reflect.getPrototypeOf')} */
+module.exports = (typeof Reflect !== 'undefined' && Reflect.getPrototypeOf) || null;
diff --git a/backend/node_modules/get-proto/index.d.ts b/backend/node_modules/get-proto/index.d.ts
new file mode 100644
index 0000000..2c021f3
--- /dev/null
+++ b/backend/node_modules/get-proto/index.d.ts
@@ -0,0 +1,5 @@
+declare function getProto<O extends object>(object: O): object | null;
+
+declare const x: typeof getProto | null;
+
+export = x;
diff --git a/backend/node_modules/get-proto/index.js b/backend/node_modules/get-proto/index.js
new file mode 100644
index 0000000..7e5747b
--- /dev/null
+++ b/backend/node_modules/get-proto/index.js
@@ -0,0 +1,27 @@
+'use strict';
+
+var reflectGetProto = require('./Reflect.getPrototypeOf');
+var originalGetProto = require('./Object.getPrototypeOf');
+
+var getDunderProto = require('dunder-proto/get');
+
+/** @type {import('.')} */
+module.exports = reflectGetProto
+	? function getProto(O) {
+		// @ts-expect-error TS can't narrow inside a closure, for some reason
+		return reflectGetProto(O);
+	}
+	: originalGetProto
+		? function getProto(O) {
+			if (!O || (typeof O !== 'object' && typeof O !== 'function')) {
+				throw new TypeError('getProto: not an object');
+			}
+			// @ts-expect-error TS can't narrow inside a closure, for some reason
+			return originalGetProto(O);
+		}
+		: getDunderProto
+			? function getProto(O) {
+				// @ts-expect-error TS can't narrow inside a closure, for some reason
+				return getDunderProto(O);
+			}
+			: null;
diff --git a/backend/node_modules/get-proto/package.json b/backend/node_modules/get-proto/package.json
new file mode 100644
index 0000000..9c35cec
--- /dev/null
+++ b/backend/node_modules/get-proto/package.json
@@ -0,0 +1,81 @@
+{
+	"name": "get-proto",
+	"version": "1.0.1",
+	"description": "Robustly get the [[Prototype]] of an object",
+	"main": "index.js",
+	"exports": {
+		".": "./index.js",
+		"./Reflect.getPrototypeOf": "./Reflect.getPrototypeOf.js",
+		"./Object.getPrototypeOf": "./Object.getPrototypeOf.js",
+		"./package.json": "./package.json"
+	},
+	"scripts": {
+		"prepack": "npmignore --auto --commentLines=autogenerated",
+		"prepublish": "not-in-publish || npm run prepublishOnly",
+		"prepublishOnly": "safe-publish-latest",
+		"pretest": "npm run --silent lint",
+		"test": "npm run tests-only",
+		"posttest": "npx npm@\">=10.2\" audit --production",
+		"tests-only": "nyc tape 'test/**/*.js'",
+		"prelint": "evalmd README.md",
+		"lint": "eslint --ext=js,mjs .",
+		"postlint": "tsc && attw -P",
+		"version": "auto-changelog && git add CHANGELOG.md",
+		"postversion": "auto-changelog && git add CHANGELOG.md && git commit --no-edit --amend && git tag -f \"v$(node -e \"console.log(require('./package.json').version)\")\""
+	},
+	"repository": {
+		"type": "git",
+		"url": "git+https://github.com/ljharb/get-proto.git"
+	},
+	"keywords": [
+		"get",
+		"proto",
+		"prototype",
+		"getPrototypeOf",
+		"[[Prototype]]"
+	],
+	"author": "Jordan Harband <ljharb@gmail.com>",
+	"license": "MIT",
+	"bugs": {
+		"url": "https://github.com/ljharb/get-proto/issues"
+	},
+	"homepage": "https://github.com/ljharb/get-proto#readme",
+	"dependencies": {
+		"dunder-proto": "^1.0.1",
+		"es-object-atoms": "^1.0.0"
+	},
+	"devDependencies": {
+		"@arethetypeswrong/cli": "^0.17.2",
+		"@ljharb/eslint-config": "^21.1.1",
+		"@ljharb/tsconfig": "^0.2.3",
+		"@types/tape": "^5.8.0",
+		"auto-changelog": "^2.5.0",
+		"eslint": "=8.8.0",
+		"evalmd": "^0.0.19",
+		"in-publish": "^2.0.1",
+		"npmignore": "^0.3.1",
+		"nyc": "^10.3.2",
+		"safe-publish-latest": "^2.0.0",
+		"tape": "^5.9.0",
+		"typescript": "next"
+	},
+	"engines": {
+		"node": ">= 0.4"
+	},
+	"auto-changelog": {
+		"output": "CHANGELOG.md",
+		"template": "keepachangelog",
+		"unreleased": false,
+		"commitLimit": false,
+		"backfillLimit": false,
+		"hideCredit": true
+	},
+	"publishConfig": {
+		"ignore": [
+			".github/workflows"
+		]
+	},
+	"testling": {
+		"files": "test/index.js"
+	}
+}
diff --git a/backend/node_modules/get-proto/test/index.js b/backend/node_modules/get-proto/test/index.js
new file mode 100644
index 0000000..5a2ece2
--- /dev/null
+++ b/backend/node_modules/get-proto/test/index.js
@@ -0,0 +1,68 @@
+'use strict';
+
+var test = require('tape');
+
+var getProto = require('../');
+
+test('getProto', function (t) {
+	t.equal(typeof getProto, 'function', 'is a function');
+
+	t.test('can get', { skip: !getProto }, function (st) {
+		if (getProto) { // TS doesn't understand tape's skip
+			var proto = { b: 2 };
+			st.equal(getProto(proto), Object.prototype, 'proto: returns the [[Prototype]]');
+
+			st.test('nullish value', function (s2t) {
+			// @ts-expect-error
+				s2t['throws'](function () { return getProto(undefined); }, TypeError, 'undefined is not an object');
+				// @ts-expect-error
+				s2t['throws'](function () { return getProto(null); }, TypeError, 'null is not an object');
+				s2t.end();
+			});
+
+			// @ts-expect-error
+			st['throws'](function () { getProto(true); }, 'throws for true');
+			// @ts-expect-error
+			st['throws'](function () { getProto(false); }, 'throws for false');
+			// @ts-expect-error
+			st['throws'](function () { getProto(42); }, 'throws for 42');
+			// @ts-expect-error
+			st['throws'](function () { getProto(NaN); }, 'throws for NaN');
+			// @ts-expect-error
+			st['throws'](function () { getProto(0); }, 'throws for +0');
+			// @ts-expect-error
+			st['throws'](function () { getProto(-0); }, 'throws for -0');
+			// @ts-expect-error
+			st['throws'](function () { getProto(Infinity); }, 'throws for ∞');
+			// @ts-expect-error
+			st['throws'](function () { getProto(-Infinity); }, 'throws for -∞');
+			// @ts-expect-error
+			st['throws'](function () { getProto(''); }, 'throws for empty string');
+			// @ts-expect-error
+			st['throws'](function () { getProto('foo'); }, 'throws for non-empty string');
+			st.equal(getProto(/a/g), RegExp.prototype);
+			st.equal(getProto(new Date()), Date.prototype);
+			st.equal(getProto(function () {}), Function.prototype);
+			st.equal(getProto([]), Array.prototype);
+			st.equal(getProto({}), Object.prototype);
+
+			var nullObject = { __proto__: null };
+			if ('toString' in nullObject) {
+				st.comment('no null objects in this engine');
+				st.equal(getProto(nullObject), Object.prototype, '"null" object has Object.prototype as [[Prototype]]');
+			} else {
+				st.equal(getProto(nullObject), null, 'null object has null [[Prototype]]');
+			}
+		}
+
+		st.end();
+	});
+
+	t.test('can not get', { skip: !!getProto }, function (st) {
+		st.equal(getProto, null);
+
+		st.end();
+	});
+
+	t.end();
+});
diff --git a/backend/node_modules/get-proto/tsconfig.json b/backend/node_modules/get-proto/tsconfig.json
new file mode 100644
index 0000000..60fb90e
--- /dev/null
+++ b/backend/node_modules/get-proto/tsconfig.json
@@ -0,0 +1,9 @@
+{
+	"extends": "@ljharb/tsconfig",
+	"compilerOptions": {
+		//"target": "es2021",
+	},
+	"exclude": [
+		"coverage",
+	],
+}
diff --git a/backend/node_modules/gopd/.eslintrc b/backend/node_modules/gopd/.eslintrc
new file mode 100644
index 0000000..e2550c0
--- /dev/null
+++ b/backend/node_modules/gopd/.eslintrc
@@ -0,0 +1,16 @@
+{
+	"root": true,
+
+	"extends": "@ljharb",
+
+	"rules": {
+		"func-style": [2, "declaration"],
+		"id-length": 0,
+		"multiline-comment-style": 0,
+		"new-cap": [2, {
+			"capIsNewExceptions": [
+				"GetIntrinsic",
+			],
+		}],
+	},
+}
diff --git a/backend/node_modules/gopd/.github/FUNDING.yml b/backend/node_modules/gopd/.github/FUNDING.yml
new file mode 100644
index 0000000..94a44a8
--- /dev/null
+++ b/backend/node_modules/gopd/.github/FUNDING.yml
@@ -0,0 +1,12 @@
+# These are supported funding model platforms
+
+github: [ljharb]
+patreon: # Replace with a single Patreon username
+open_collective: # Replace with a single Open Collective username
+ko_fi: # Replace with a single Ko-fi username
+tidelift: npm/gopd
+community_bridge: # Replace with a single Community Bridge project-name e.g., cloud-foundry
+liberapay: # Replace with a single Liberapay username
+issuehunt: # Replace with a single IssueHunt username
+otechie: # Replace with a single Otechie username
+custom: # Replace with up to 4 custom sponsorship URLs e.g., ['link1', 'link2']
diff --git a/backend/node_modules/gopd/CHANGELOG.md b/backend/node_modules/gopd/CHANGELOG.md
new file mode 100644
index 0000000..87f5727
--- /dev/null
+++ b/backend/node_modules/gopd/CHANGELOG.md
@@ -0,0 +1,45 @@
+# Changelog
+
+All notable changes to this project will be documented in this file.
+
+The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/)
+and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
+
+## [v1.2.0](https://github.com/ljharb/gopd/compare/v1.1.0...v1.2.0) - 2024-12-03
+
+### Commits
+
+- [New] add `gOPD` entry point; remove `get-intrinsic` [`5b61232`](https://github.com/ljharb/gopd/commit/5b61232dedea4591a314bcf16101b1961cee024e)
+
+## [v1.1.0](https://github.com/ljharb/gopd/compare/v1.0.1...v1.1.0) - 2024-11-29
+
+### Commits
+
+- [New] add types [`f585e39`](https://github.com/ljharb/gopd/commit/f585e397886d270e4ba84e53d226e4f9ca2eb0e6)
+- [Dev Deps] update `@ljharb/eslint-config`, `auto-changelog`, `tape` [`0b8e4fd`](https://github.com/ljharb/gopd/commit/0b8e4fded64397a7726a9daa144a6cc9a5e2edfa)
+- [Dev Deps] update `aud`, `npmignore`, `tape` [`48378b2`](https://github.com/ljharb/gopd/commit/48378b2443f09a4f7efbd0fb6c3ee845a6cabcf3)
+- [Dev Deps] update `@ljharb/eslint-config`, `aud`, `tape` [`78099ee`](https://github.com/ljharb/gopd/commit/78099eeed41bfdc134c912280483689cc8861c31)
+- [Tests] replace `aud` with `npm audit` [`4e0d0ac`](https://github.com/ljharb/gopd/commit/4e0d0ac47619d24a75318a8e1f543ee04b2a2632)
+- [meta] add missing `engines.node` [`1443316`](https://github.com/ljharb/gopd/commit/14433165d07835c680155b3dfd62d9217d735eca)
+- [Deps] update `get-intrinsic` [`eee5f51`](https://github.com/ljharb/gopd/commit/eee5f51769f3dbaf578b70e2a3199116b01aa670)
+- [Deps] update `get-intrinsic` [`550c378`](https://github.com/ljharb/gopd/commit/550c3780e3a9c77b62565712a001b4ed64ea61f5)
+- [Dev Deps] add missing peer dep [`8c2ecf8`](https://github.com/ljharb/gopd/commit/8c2ecf848122e4e30abfc5b5086fb48b390dce75)
+
+## [v1.0.1](https://github.com/ljharb/gopd/compare/v1.0.0...v1.0.1) - 2022-11-01
+
+### Commits
+
+- [Fix] actually export gOPD instead of dP [`4b624bf`](https://github.com/ljharb/gopd/commit/4b624bfbeff788c5e3ff16d9443a83627847234f)
+
+## v1.0.0 - 2022-11-01
+
+### Commits
+
+- Initial implementation, tests, readme [`0911e01`](https://github.com/ljharb/gopd/commit/0911e012cd642092bd88b732c161c58bf4f20bea)
+- Initial commit [`b84e33f`](https://github.com/ljharb/gopd/commit/b84e33f5808a805ac57ff88d4247ad935569acbe)
+- [actions] add reusable workflows [`12ae28a`](https://github.com/ljharb/gopd/commit/12ae28ae5f50f86e750215b6e2188901646d0119)
+- npm init [`280118b`](https://github.com/ljharb/gopd/commit/280118badb45c80b4483836b5cb5315bddf6e582)
+- [meta] add `auto-changelog` [`bb78de5`](https://github.com/ljharb/gopd/commit/bb78de5639a180747fb290c28912beaaf1615709)
+- [meta] create FUNDING.yml; add `funding` in package.json [`11c22e6`](https://github.com/ljharb/gopd/commit/11c22e6355bb01f24e7fac4c9bb3055eb5b25002)
+- [meta] use `npmignore` to autogenerate an npmignore file [`4f4537a`](https://github.com/ljharb/gopd/commit/4f4537a843b39f698c52f072845092e6fca345bb)
+- Only apps should have lockfiles [`c567022`](https://github.com/ljharb/gopd/commit/c567022a18573aa7951cf5399445d9840e23e98b)
diff --git a/backend/node_modules/gopd/LICENSE b/backend/node_modules/gopd/LICENSE
new file mode 100644
index 0000000..6abfe14
--- /dev/null
+++ b/backend/node_modules/gopd/LICENSE
@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2022 Jordan Harband
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
diff --git a/backend/node_modules/gopd/README.md b/backend/node_modules/gopd/README.md
new file mode 100644
index 0000000..784e56a
--- /dev/null
+++ b/backend/node_modules/gopd/README.md
@@ -0,0 +1,40 @@
+# gopd <sup>[![Version Badge][npm-version-svg]][package-url]</sup>
+
+[![github actions][actions-image]][actions-url]
+[![coverage][codecov-image]][codecov-url]
+[![License][license-image]][license-url]
+[![Downloads][downloads-image]][downloads-url]
+
+[![npm badge][npm-badge-png]][package-url]
+
+`Object.getOwnPropertyDescriptor`, but accounts for IE's broken implementation.
+
+## Usage
+
+```javascript
+var gOPD = require('gopd');
+var assert = require('assert');
+
+if (gOPD) {
+	assert.equal(typeof gOPD, 'function', 'descriptors supported');
+	// use gOPD like Object.getOwnPropertyDescriptor here
+} else {
+	assert.ok(!gOPD, 'descriptors not supported');
+}
+```
+
+[package-url]: https://npmjs.org/package/gopd
+[npm-version-svg]: https://versionbadg.es/ljharb/gopd.svg
+[deps-svg]: https://david-dm.org/ljharb/gopd.svg
+[deps-url]: https://david-dm.org/ljharb/gopd
+[dev-deps-svg]: https://david-dm.org/ljharb/gopd/dev-status.svg
+[dev-deps-url]: https://david-dm.org/ljharb/gopd#info=devDependencies
+[npm-badge-png]: https://nodei.co/npm/gopd.png?downloads=true&stars=true
+[license-image]: https://img.shields.io/npm/l/gopd.svg
+[license-url]: LICENSE
+[downloads-image]: https://img.shields.io/npm/dm/gopd.svg
+[downloads-url]: https://npm-stat.com/charts.html?package=gopd
+[codecov-image]: https://codecov.io/gh/ljharb/gopd/branch/main/graphs/badge.svg
+[codecov-url]: https://app.codecov.io/gh/ljharb/gopd/
+[actions-image]: https://img.shields.io/endpoint?url=https://github-actions-badge-u3jn4tfpocch.runkit.sh/ljharb/gopd
+[actions-url]: https://github.com/ljharb/gopd/actions
diff --git a/backend/node_modules/gopd/gOPD.d.ts b/backend/node_modules/gopd/gOPD.d.ts
new file mode 100644
index 0000000..def48a3
--- /dev/null
+++ b/backend/node_modules/gopd/gOPD.d.ts
@@ -0,0 +1 @@
+export = Object.getOwnPropertyDescriptor;
diff --git a/backend/node_modules/gopd/gOPD.js b/backend/node_modules/gopd/gOPD.js
new file mode 100644
index 0000000..cf9616c
--- /dev/null
+++ b/backend/node_modules/gopd/gOPD.js
@@ -0,0 +1,4 @@
+'use strict';
+
+/** @type {import('./gOPD')} */
+module.exports = Object.getOwnPropertyDescriptor;
diff --git a/backend/node_modules/gopd/index.d.ts b/backend/node_modules/gopd/index.d.ts
new file mode 100644
index 0000000..e228065
--- /dev/null
+++ b/backend/node_modules/gopd/index.d.ts
@@ -0,0 +1,5 @@
+declare function gOPD<O extends object, K extends keyof O>(obj: O, prop: K): PropertyDescriptor | undefined;
+
+declare const fn: typeof gOPD | undefined | null;
+
+export = fn;
\ No newline at end of file
diff --git a/backend/node_modules/gopd/index.js b/backend/node_modules/gopd/index.js
new file mode 100644
index 0000000..a4081b0
--- /dev/null
+++ b/backend/node_modules/gopd/index.js
@@ -0,0 +1,15 @@
+'use strict';
+
+/** @type {import('.')} */
+var $gOPD = require('./gOPD');
+
+if ($gOPD) {
+	try {
+		$gOPD([], 'length');
+	} catch (e) {
+		// IE 8 has a broken gOPD
+		$gOPD = null;
+	}
+}
+
+module.exports = $gOPD;
diff --git a/backend/node_modules/gopd/package.json b/backend/node_modules/gopd/package.json
new file mode 100644
index 0000000..01c5ffa
--- /dev/null
+++ b/backend/node_modules/gopd/package.json
@@ -0,0 +1,77 @@
+{
+	"name": "gopd",
+	"version": "1.2.0",
+	"description": "`Object.getOwnPropertyDescriptor`, but accounts for IE's broken implementation.",
+	"main": "index.js",
+	"exports": {
+		".": "./index.js",
+		"./gOPD": "./gOPD.js",
+		"./package.json": "./package.json"
+	},
+	"sideEffects": false,
+	"scripts": {
+		"prepack": "npmignore --auto --commentLines=autogenerated",
+		"prepublishOnly": "safe-publish-latest",
+		"prepublish": "not-in-publish || npm run prepublishOnly",
+		"prelint": "tsc -p . && attw -P",
+		"lint": "eslint --ext=js,mjs .",
+		"postlint": "evalmd README.md",
+		"pretest": "npm run lint",
+		"tests-only": "tape 'test/**/*.js'",
+		"test": "npm run tests-only",
+		"posttest": "npx npm@'>=10.2' audit --production",
+		"version": "auto-changelog && git add CHANGELOG.md",
+		"postversion": "auto-changelog && git add CHANGELOG.md && git commit --no-edit --amend && git tag -f \"v$(node -e \"console.log(require('./package.json').version)\")\""
+	},
+	"repository": {
+		"type": "git",
+		"url": "git+https://github.com/ljharb/gopd.git"
+	},
+	"keywords": [
+		"ecmascript",
+		"javascript",
+		"getownpropertydescriptor",
+		"property",
+		"descriptor"
+	],
+	"author": "Jordan Harband <ljharb@gmail.com>",
+	"funding": {
+		"url": "https://github.com/sponsors/ljharb"
+	},
+	"license": "MIT",
+	"bugs": {
+		"url": "https://github.com/ljharb/gopd/issues"
+	},
+	"homepage": "https://github.com/ljharb/gopd#readme",
+	"devDependencies": {
+		"@arethetypeswrong/cli": "^0.17.0",
+		"@ljharb/eslint-config": "^21.1.1",
+		"@ljharb/tsconfig": "^0.2.0",
+		"@types/tape": "^5.6.5",
+		"auto-changelog": "^2.5.0",
+		"encoding": "^0.1.13",
+		"eslint": "=8.8.0",
+		"evalmd": "^0.0.19",
+		"in-publish": "^2.0.1",
+		"npmignore": "^0.3.1",
+		"safe-publish-latest": "^2.0.0",
+		"tape": "^5.9.0",
+		"typescript": "next"
+	},
+	"auto-changelog": {
+		"output": "CHANGELOG.md",
+		"template": "keepachangelog",
+		"unreleased": false,
+		"commitLimit": false,
+		"backfillLimit": false,
+		"hideCredit": true
+	},
+	"publishConfig": {
+		"ignore": [
+			".github/workflows"
+		]
+	},
+	"engines": {
+		"node": ">= 0.4"
+	}
+}
diff --git a/backend/node_modules/gopd/test/index.js b/backend/node_modules/gopd/test/index.js
new file mode 100644
index 0000000..6f43453
--- /dev/null
+++ b/backend/node_modules/gopd/test/index.js
@@ -0,0 +1,36 @@
+'use strict';
+
+var test = require('tape');
+var gOPD = require('../');
+
+test('gOPD', function (t) {
+	t.test('supported', { skip: !gOPD }, function (st) {
+		st.equal(typeof gOPD, 'function', 'is a function');
+
+		var obj = { x: 1 };
+		st.ok('x' in obj, 'property exists');
+
+		// @ts-expect-error TS can't figure out narrowing from `skip`
+		var desc = gOPD(obj, 'x');
+		st.deepEqual(
+			desc,
+			{
+				configurable: true,
+				enumerable: true,
+				value: 1,
+				writable: true
+			},
+			'descriptor is as expected'
+		);
+
+		st.end();
+	});
+
+	t.test('not supported', { skip: !!gOPD }, function (st) {
+		st.notOk(gOPD, 'is falsy');
+
+		st.end();
+	});
+
+	t.end();
+});
diff --git a/backend/node_modules/gopd/tsconfig.json b/backend/node_modules/gopd/tsconfig.json
new file mode 100644
index 0000000..d9a6668
--- /dev/null
+++ b/backend/node_modules/gopd/tsconfig.json
@@ -0,0 +1,9 @@
+{
+	"extends": "@ljharb/tsconfig",
+	"compilerOptions": {
+		"target": "es2021",
+	},
+	"exclude": [
+		"coverage",
+	],
+}
diff --git a/backend/node_modules/has-symbols/.eslintrc b/backend/node_modules/has-symbols/.eslintrc
new file mode 100644
index 0000000..2d9a66a
--- /dev/null
+++ b/backend/node_modules/has-symbols/.eslintrc
@@ -0,0 +1,11 @@
+{
+	"root": true,
+
+	"extends": "@ljharb",
+
+	"rules": {
+		"max-statements-per-line": [2, { "max": 2 }],
+		"no-magic-numbers": 0,
+		"multiline-comment-style": 0,
+	}
+}
diff --git a/backend/node_modules/has-symbols/.github/FUNDING.yml b/backend/node_modules/has-symbols/.github/FUNDING.yml
new file mode 100644
index 0000000..04cf87e
--- /dev/null
+++ b/backend/node_modules/has-symbols/.github/FUNDING.yml
@@ -0,0 +1,12 @@
+# These are supported funding model platforms
+
+github: [ljharb]
+patreon: # Replace with a single Patreon username
+open_collective: # Replace with a single Open Collective username
+ko_fi: # Replace with a single Ko-fi username
+tidelift: npm/has-symbols
+community_bridge: # Replace with a single Community Bridge project-name e.g., cloud-foundry
+liberapay: # Replace with a single Liberapay username
+issuehunt: # Replace with a single IssueHunt username
+otechie: # Replace with a single Otechie username
+custom: # Replace with up to 4 custom sponsorship URLs e.g., ['link1', 'link2']
diff --git a/backend/node_modules/has-symbols/.nycrc b/backend/node_modules/has-symbols/.nycrc
new file mode 100644
index 0000000..bdd626c
--- /dev/null
+++ b/backend/node_modules/has-symbols/.nycrc
@@ -0,0 +1,9 @@
+{
+	"all": true,
+	"check-coverage": false,
+	"reporter": ["text-summary", "text", "html", "json"],
+	"exclude": [
+		"coverage",
+		"test"
+	]
+}
diff --git a/backend/node_modules/has-symbols/CHANGELOG.md b/backend/node_modules/has-symbols/CHANGELOG.md
new file mode 100644
index 0000000..cc3cf83
--- /dev/null
+++ b/backend/node_modules/has-symbols/CHANGELOG.md
@@ -0,0 +1,91 @@
+# Changelog
+
+All notable changes to this project will be documented in this file.
+
+The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/)
+and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
+
+## [v1.1.0](https://github.com/inspect-js/has-symbols/compare/v1.0.3...v1.1.0) - 2024-12-02
+
+### Commits
+
+- [actions] update workflows [`548c0bf`](https://github.com/inspect-js/has-symbols/commit/548c0bf8c9b1235458df7a1c0490b0064647a282)
+- [actions] further shard; update action deps [`bec56bb`](https://github.com/inspect-js/has-symbols/commit/bec56bb0fb44b43a786686b944875a3175cf3ff3)
+- [meta] use `npmignore` to autogenerate an npmignore file [`ac81032`](https://github.com/inspect-js/has-symbols/commit/ac81032809157e0a079e5264e9ce9b6f1275777e)
+- [New] add types [`6469cbf`](https://github.com/inspect-js/has-symbols/commit/6469cbff1866cfe367b2b3d181d9296ec14b2a3d)
+- [actions] update rebase action to use reusable workflow [`9c9d4d0`](https://github.com/inspect-js/has-symbols/commit/9c9d4d0d8938e4b267acdf8e421f4e92d1716d72)
+- [Dev Deps] update `eslint`, `@ljharb/eslint-config`, `aud`, `tape` [`adb5887`](https://github.com/inspect-js/has-symbols/commit/adb5887ca9444849b08beb5caaa9e1d42320cdfb)
+- [Dev Deps] update `@ljharb/eslint-config`, `aud`, `tape` [`13ec198`](https://github.com/inspect-js/has-symbols/commit/13ec198ec80f1993a87710af1606a1970b22c7cb)
+- [Dev Deps] update `auto-changelog`, `core-js`, `tape` [`941be52`](https://github.com/inspect-js/has-symbols/commit/941be5248387cab1da72509b22acf3fdb223f057)
+- [Tests] replace `aud` with `npm audit` [`74f49e9`](https://github.com/inspect-js/has-symbols/commit/74f49e9a9d17a443020784234a1c53ce765b3559)
+- [Dev Deps] update `npmignore` [`9c0ac04`](https://github.com/inspect-js/has-symbols/commit/9c0ac0452a834f4c2a4b54044f2d6a89f17e9a70)
+- [Dev Deps] add missing peer dep [`52337a5`](https://github.com/inspect-js/has-symbols/commit/52337a5621cced61f846f2afdab7707a8132cc12)
+
+## [v1.0.3](https://github.com/inspect-js/has-symbols/compare/v1.0.2...v1.0.3) - 2022-03-01
+
+### Commits
+
+- [actions] use `node/install` instead of `node/run`; use `codecov` action [`518b28f`](https://github.com/inspect-js/has-symbols/commit/518b28f6c5a516cbccae30794e40aa9f738b1693)
+- [meta] add `bugs` and `homepage` fields; reorder package.json [`c480b13`](https://github.com/inspect-js/has-symbols/commit/c480b13fd6802b557e1cef9749872cb5fdeef744)
+- [actions] reuse common workflows [`01d0ee0`](https://github.com/inspect-js/has-symbols/commit/01d0ee0a8d97c0947f5edb73eb722027a77b2b07)
+- [actions] update codecov uploader [`6424ebe`](https://github.com/inspect-js/has-symbols/commit/6424ebe86b2c9c7c3d2e9bd4413a4e4f168cb275)
+- [Dev Deps] update `eslint`, `@ljharb/eslint-config`, `aud`, `auto-changelog`, `tape` [`dfa7e7f`](https://github.com/inspect-js/has-symbols/commit/dfa7e7ff38b594645d8c8222aab895157fa7e282)
+- [Dev Deps] update `eslint`, `@ljharb/eslint-config`, `safe-publish-latest`, `tape` [`0c8d436`](https://github.com/inspect-js/has-symbols/commit/0c8d43685c45189cea9018191d4fd7eca91c9d02)
+- [Dev Deps] update `eslint`, `@ljharb/eslint-config`, `aud`, `tape` [`9026554`](https://github.com/inspect-js/has-symbols/commit/902655442a1bf88e72b42345494ef0c60f5d36ab)
+- [readme] add actions and codecov badges [`eaa9682`](https://github.com/inspect-js/has-symbols/commit/eaa9682f990f481d3acf7a1c7600bec36f7b3adc)
+- [Dev Deps] update `eslint`, `tape` [`bc7a3ba`](https://github.com/inspect-js/has-symbols/commit/bc7a3ba46f27b7743f8a2579732d59d1b9ac791e)
+- [Dev Deps] update `eslint`, `auto-changelog` [`0ace00a`](https://github.com/inspect-js/has-symbols/commit/0ace00af08a88cdd1e6ce0d60357d941c60c2d9f)
+- [meta] use `prepublishOnly` script for npm 7+ [`093f72b`](https://github.com/inspect-js/has-symbols/commit/093f72bc2b0ed00c781f444922a5034257bf561d)
+- [Tests] test on all 16 minors [`9b80d3d`](https://github.com/inspect-js/has-symbols/commit/9b80d3d9102529f04c20ec5b1fcc6e38426c6b03)
+
+## [v1.0.2](https://github.com/inspect-js/has-symbols/compare/v1.0.1...v1.0.2) - 2021-02-27
+
+### Fixed
+
+- [Fix] use a universal way to get the original Symbol [`#11`](https://github.com/inspect-js/has-symbols/issues/11)
+
+### Commits
+
+- [Tests] migrate tests to Github Actions [`90ae798`](https://github.com/inspect-js/has-symbols/commit/90ae79820bdfe7bc703d67f5f3c5e205f98556d3)
+- [meta] do not publish github action workflow files [`29e60a1`](https://github.com/inspect-js/has-symbols/commit/29e60a1b7c25c7f1acf7acff4a9320d0d10c49b4)
+- [Tests] run `nyc` on all tests [`8476b91`](https://github.com/inspect-js/has-symbols/commit/8476b915650d360915abe2522505abf4b0e8f0ae)
+- [readme] fix repo URLs, remove defunct badges [`126288e`](https://github.com/inspect-js/has-symbols/commit/126288ecc1797c0a40247a6b78bcb2e0bc5d7036)
+- [Dev Deps] update `eslint`, `@ljharb/eslint-config`, `aud`, `auto-changelog`, `core-js`, `get-own-property-symbols` [`d84bdfa`](https://github.com/inspect-js/has-symbols/commit/d84bdfa48ac5188abbb4904b42614cd6c030940a)
+- [Tests] fix linting errors [`0df3070`](https://github.com/inspect-js/has-symbols/commit/0df3070b981b6c9f2ee530c09189a7f5c6def839)
+- [actions] add "Allow Edits" workflow [`1e6bc29`](https://github.com/inspect-js/has-symbols/commit/1e6bc29b188f32b9648657b07eda08504be5aa9c)
+- [Dev Deps] update `eslint`, `@ljharb/eslint-config`, `tape` [`36cea2a`](https://github.com/inspect-js/has-symbols/commit/36cea2addd4e6ec435f35a2656b4e9ef82498e9b)
+- [Dev Deps] update `eslint`, `@ljharb/eslint-config`, `aud`, `tape` [`1278338`](https://github.com/inspect-js/has-symbols/commit/127833801865fbc2cc8979beb9ca869c7bfe8222)
+- [Dev Deps] update `eslint`, `@ljharb/eslint-config`, `aud`, `tape` [`1493254`](https://github.com/inspect-js/has-symbols/commit/1493254eda13db5fb8fc5e4a3e8324b3d196029d)
+- [Dev Deps] update `eslint`, `@ljharb/eslint-config`, `core-js` [`b090bf2`](https://github.com/inspect-js/has-symbols/commit/b090bf214d3679a30edc1e2d729d466ab5183e1d)
+- [actions] switch Automatic Rebase workflow to `pull_request_target` event [`4addb7a`](https://github.com/inspect-js/has-symbols/commit/4addb7ab4dc73f927ae99928d68817554fc21dc0)
+- [Dev Deps] update `auto-changelog`, `tape` [`81d0baf`](https://github.com/inspect-js/has-symbols/commit/81d0baf3816096a89a8558e8043895f7a7d10d8b)
+- [Dev Deps] update `auto-changelog`; add `aud` [`1a4e561`](https://github.com/inspect-js/has-symbols/commit/1a4e5612c25d91c3a03d509721d02630bc4fe3da)
+- [readme] remove unused testling URLs [`3000941`](https://github.com/inspect-js/has-symbols/commit/3000941f958046e923ed8152edb1ef4a599e6fcc)
+- [Tests] only audit prod deps [`692e974`](https://github.com/inspect-js/has-symbols/commit/692e9743c912410e9440207631a643a34b4741a1)
+- [Dev Deps] update `@ljharb/eslint-config` [`51c946c`](https://github.com/inspect-js/has-symbols/commit/51c946c7f6baa793ec5390bb5a45cdce16b4ba76)
+
+## [v1.0.1](https://github.com/inspect-js/has-symbols/compare/v1.0.0...v1.0.1) - 2019-11-16
+
+### Commits
+
+- [Tests] use shared travis-ci configs [`ce396c9`](https://github.com/inspect-js/has-symbols/commit/ce396c9419ff11c43d0da5d05cdbb79f7fb42229)
+- [Tests] up to `node` `v12.4`, `v11.15`, `v10.15`, `v9.11`, `v8.15`, `v7.10`, `v6.17`, `v4.9`; use `nvm install-latest-npm` [`0690732`](https://github.com/inspect-js/has-symbols/commit/0690732801f47ab429f39ba1962f522d5c462d6b)
+- [meta] add `auto-changelog` [`2163d0b`](https://github.com/inspect-js/has-symbols/commit/2163d0b7f36343076b8f947cd1667dd1750f26fc)
+- [Dev Deps] update `eslint`, `@ljharb/eslint-config`, `core-js`, `safe-publish-latest`, `tape` [`8e0951f`](https://github.com/inspect-js/has-symbols/commit/8e0951f1a7a2e52068222b7bb73511761e6e4d9c)
+- [actions] add automatic rebasing / merge commit blocking [`b09cdb7`](https://github.com/inspect-js/has-symbols/commit/b09cdb7cd7ee39e7a769878f56e2d6066f5ccd1d)
+- [Dev Deps] update `eslint`, `@ljharb/eslint-config`, `safe-publish-latest`, `core-js`, `get-own-property-symbols`, `tape` [`1dd42cd`](https://github.com/inspect-js/has-symbols/commit/1dd42cd86183ed0c50f99b1062345c458babca91)
+- [meta] create FUNDING.yml [`aa57a17`](https://github.com/inspect-js/has-symbols/commit/aa57a17b19708906d1927f821ea8e73394d84ca4)
+- Only apps should have lockfiles [`a2d8bea`](https://github.com/inspect-js/has-symbols/commit/a2d8bea23a97d15c09eaf60f5b107fcf9a4d57aa)
+- [Tests] use `npx aud` instead of `nsp` or `npm audit` with hoops [`9e96cb7`](https://github.com/inspect-js/has-symbols/commit/9e96cb783746cbed0c10ef78e599a8eaa7ebe193)
+- [meta] add `funding` field [`a0b32cf`](https://github.com/inspect-js/has-symbols/commit/a0b32cf68e803f963c1639b6d47b0a9d6440bab0)
+- [Dev Deps] update `safe-publish-latest` [`cb9f0a5`](https://github.com/inspect-js/has-symbols/commit/cb9f0a521a3a1790f1064d437edd33bb6c3d6af0)
+
+## v1.0.0 - 2016-09-19
+
+### Commits
+
+- Tests. [`ecb6eb9`](https://github.com/inspect-js/has-symbols/commit/ecb6eb934e4883137f3f93b965ba5e0a98df430d)
+- package.json [`88a337c`](https://github.com/inspect-js/has-symbols/commit/88a337cee0864a0da35f5d19e69ff0ef0150e46a)
+- Initial commit [`42e1e55`](https://github.com/inspect-js/has-symbols/commit/42e1e5502536a2b8ac529c9443984acd14836b1c)
+- Initial implementation. [`33f5cc6`](https://github.com/inspect-js/has-symbols/commit/33f5cc6cdff86e2194b081ee842bfdc63caf43fb)
+- read me [`01f1170`](https://github.com/inspect-js/has-symbols/commit/01f1170188ff7cb1558aa297f6ba5b516c6d7b0c)
diff --git a/backend/node_modules/has-symbols/LICENSE b/backend/node_modules/has-symbols/LICENSE
new file mode 100644
index 0000000..df31cbf
--- /dev/null
+++ b/backend/node_modules/has-symbols/LICENSE
@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2016 Jordan Harband
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
diff --git a/backend/node_modules/has-symbols/README.md b/backend/node_modules/has-symbols/README.md
new file mode 100644
index 0000000..33905f0
--- /dev/null
+++ b/backend/node_modules/has-symbols/README.md
@@ -0,0 +1,46 @@
+# has-symbols <sup>[![Version Badge][2]][1]</sup>
+
+[![github actions][actions-image]][actions-url]
+[![coverage][codecov-image]][codecov-url]
+[![dependency status][5]][6]
+[![dev dependency status][7]][8]
+[![License][license-image]][license-url]
+[![Downloads][downloads-image]][downloads-url]
+
+[![npm badge][11]][1]
+
+Determine if the JS environment has Symbol support. Supports spec, or shams.
+
+## Example
+
+```js
+var hasSymbols = require('has-symbols');
+
+hasSymbols() === true; // if the environment has native Symbol support. Not polyfillable, not forgeable.
+
+var hasSymbolsKinda = require('has-symbols/shams');
+hasSymbolsKinda() === true; // if the environment has a Symbol sham that mostly follows the spec.
+```
+
+## Supported Symbol shams
+ - get-own-property-symbols [npm](https://www.npmjs.com/package/get-own-property-symbols) | [github](https://github.com/WebReflection/get-own-property-symbols)
+ - core-js [npm](https://www.npmjs.com/package/core-js) | [github](https://github.com/zloirock/core-js)
+
+## Tests
+Simply clone the repo, `npm install`, and run `npm test`
+
+[1]: https://npmjs.org/package/has-symbols
+[2]: https://versionbadg.es/inspect-js/has-symbols.svg
+[5]: https://david-dm.org/inspect-js/has-symbols.svg
+[6]: https://david-dm.org/inspect-js/has-symbols
+[7]: https://david-dm.org/inspect-js/has-symbols/dev-status.svg
+[8]: https://david-dm.org/inspect-js/has-symbols#info=devDependencies
+[11]: https://nodei.co/npm/has-symbols.png?downloads=true&stars=true
+[license-image]: https://img.shields.io/npm/l/has-symbols.svg
+[license-url]: LICENSE
+[downloads-image]: https://img.shields.io/npm/dm/has-symbols.svg
+[downloads-url]: https://npm-stat.com/charts.html?package=has-symbols
+[codecov-image]: https://codecov.io/gh/inspect-js/has-symbols/branch/main/graphs/badge.svg
+[codecov-url]: https://app.codecov.io/gh/inspect-js/has-symbols/
+[actions-image]: https://img.shields.io/endpoint?url=https://github-actions-badge-u3jn4tfpocch.runkit.sh/inspect-js/has-symbols
+[actions-url]: https://github.com/inspect-js/has-symbols/actions
diff --git a/backend/node_modules/has-symbols/index.d.ts b/backend/node_modules/has-symbols/index.d.ts
new file mode 100644
index 0000000..9b98595
--- /dev/null
+++ b/backend/node_modules/has-symbols/index.d.ts
@@ -0,0 +1,3 @@
+declare function hasNativeSymbols(): boolean;
+
+export = hasNativeSymbols;
\ No newline at end of file
diff --git a/backend/node_modules/has-symbols/index.js b/backend/node_modules/has-symbols/index.js
new file mode 100644
index 0000000..fa65265
--- /dev/null
+++ b/backend/node_modules/has-symbols/index.js
@@ -0,0 +1,14 @@
+'use strict';
+
+var origSymbol = typeof Symbol !== 'undefined' && Symbol;
+var hasSymbolSham = require('./shams');
+
+/** @type {import('.')} */
+module.exports = function hasNativeSymbols() {
+	if (typeof origSymbol !== 'function') { return false; }
+	if (typeof Symbol !== 'function') { return false; }
+	if (typeof origSymbol('foo') !== 'symbol') { return false; }
+	if (typeof Symbol('bar') !== 'symbol') { return false; }
+
+	return hasSymbolSham();
+};
diff --git a/backend/node_modules/has-symbols/package.json b/backend/node_modules/has-symbols/package.json
new file mode 100644
index 0000000..d835e20
--- /dev/null
+++ b/backend/node_modules/has-symbols/package.json
@@ -0,0 +1,111 @@
+{
+	"name": "has-symbols",
+	"version": "1.1.0",
+	"description": "Determine if the JS environment has Symbol support. Supports spec, or shams.",
+	"main": "index.js",
+	"scripts": {
+		"prepack": "npmignore --auto --commentLines=autogenerated",
+		"prepublishOnly": "safe-publish-latest",
+		"prepublish": "not-in-publish || npm run prepublishOnly",
+		"pretest": "npm run --silent lint",
+		"test": "npm run tests-only",
+		"posttest": "npx npm@'>=10.2' audit --production",
+		"tests-only": "npm run test:stock && npm run test:shams",
+		"test:stock": "nyc node test",
+		"test:staging": "nyc node --harmony --es-staging test",
+		"test:shams": "npm run --silent test:shams:getownpropertysymbols && npm run --silent test:shams:corejs",
+		"test:shams:corejs": "nyc node test/shams/core-js.js",
+		"test:shams:getownpropertysymbols": "nyc node test/shams/get-own-property-symbols.js",
+		"lint": "eslint --ext=js,mjs .",
+		"postlint": "tsc -p . && attw -P",
+		"version": "auto-changelog && git add CHANGELOG.md",
+		"postversion": "auto-changelog && git add CHANGELOG.md && git commit --no-edit --amend && git tag -f \"v$(node -e \"console.log(require('./package.json').version)\")\""
+	},
+	"repository": {
+		"type": "git",
+		"url": "git://github.com/inspect-js/has-symbols.git"
+	},
+	"keywords": [
+		"Symbol",
+		"symbols",
+		"typeof",
+		"sham",
+		"polyfill",
+		"native",
+		"core-js",
+		"ES6"
+	],
+	"author": {
+		"name": "Jordan Harband",
+		"email": "ljharb@gmail.com",
+		"url": "http://ljharb.codes"
+	},
+	"contributors": [
+		{
+			"name": "Jordan Harband",
+			"email": "ljharb@gmail.com",
+			"url": "http://ljharb.codes"
+		}
+	],
+	"funding": {
+		"url": "https://github.com/sponsors/ljharb"
+	},
+	"license": "MIT",
+	"bugs": {
+		"url": "https://github.com/ljharb/has-symbols/issues"
+	},
+	"homepage": "https://github.com/ljharb/has-symbols#readme",
+	"devDependencies": {
+		"@arethetypeswrong/cli": "^0.17.0",
+		"@ljharb/eslint-config": "^21.1.1",
+		"@ljharb/tsconfig": "^0.2.0",
+		"@types/core-js": "^2.5.8",
+		"@types/tape": "^5.6.5",
+		"auto-changelog": "^2.5.0",
+		"core-js": "^2.6.12",
+		"encoding": "^0.1.13",
+		"eslint": "=8.8.0",
+		"get-own-property-symbols": "^0.9.5",
+		"in-publish": "^2.0.1",
+		"npmignore": "^0.3.1",
+		"nyc": "^10.3.2",
+		"safe-publish-latest": "^2.0.0",
+		"tape": "^5.9.0",
+		"typescript": "next"
+	},
+	"testling": {
+		"files": "test/index.js",
+		"browsers": [
+			"iexplore/6.0..latest",
+			"firefox/3.0..6.0",
+			"firefox/15.0..latest",
+			"firefox/nightly",
+			"chrome/4.0..10.0",
+			"chrome/20.0..latest",
+			"chrome/canary",
+			"opera/10.0..latest",
+			"opera/next",
+			"safari/4.0..latest",
+			"ipad/6.0..latest",
+			"iphone/6.0..latest",
+			"android-browser/4.2"
+		]
+	},
+	"engines": {
+		"node": ">= 0.4"
+	},
+	"auto-changelog": {
+		"output": "CHANGELOG.md",
+		"template": "keepachangelog",
+		"unreleased": false,
+		"commitLimit": false,
+		"backfillLimit": false,
+		"hideCredit": true
+	},
+	"publishConfig": {
+		"ignore": [
+			".github/workflows",
+			"types"
+		]
+	}
+}
diff --git a/backend/node_modules/has-symbols/shams.d.ts b/backend/node_modules/has-symbols/shams.d.ts
new file mode 100644
index 0000000..8d0bf24
--- /dev/null
+++ b/backend/node_modules/has-symbols/shams.d.ts
@@ -0,0 +1,3 @@
+declare function hasSymbolShams(): boolean;
+
+export = hasSymbolShams;
\ No newline at end of file
diff --git a/backend/node_modules/has-symbols/shams.js b/backend/node_modules/has-symbols/shams.js
new file mode 100644
index 0000000..f97b474
--- /dev/null
+++ b/backend/node_modules/has-symbols/shams.js
@@ -0,0 +1,45 @@
+'use strict';
+
+/** @type {import('./shams')} */
+/* eslint complexity: [2, 18], max-statements: [2, 33] */
+module.exports = function hasSymbols() {
+	if (typeof Symbol !== 'function' || typeof Object.getOwnPropertySymbols !== 'function') { return false; }
+	if (typeof Symbol.iterator === 'symbol') { return true; }
+
+	/** @type {{ [k in symbol]?: unknown }} */
+	var obj = {};
+	var sym = Symbol('test');
+	var symObj = Object(sym);
+	if (typeof sym === 'string') { return false; }
+
+	if (Object.prototype.toString.call(sym) !== '[object Symbol]') { return false; }
+	if (Object.prototype.toString.call(symObj) !== '[object Symbol]') { return false; }
+
+	// temp disabled per https://github.com/ljharb/object.assign/issues/17
+	// if (sym instanceof Symbol) { return false; }
+	// temp disabled per https://github.com/WebReflection/get-own-property-symbols/issues/4
+	// if (!(symObj instanceof Symbol)) { return false; }
+
+	// if (typeof Symbol.prototype.toString !== 'function') { return false; }
+	// if (String(sym) !== Symbol.prototype.toString.call(sym)) { return false; }
+
+	var symVal = 42;
+	obj[sym] = symVal;
+	for (var _ in obj) { return false; } // eslint-disable-line no-restricted-syntax, no-unreachable-loop
+	if (typeof Object.keys === 'function' && Object.keys(obj).length !== 0) { return false; }
+
+	if (typeof Object.getOwnPropertyNames === 'function' && Object.getOwnPropertyNames(obj).length !== 0) { return false; }
+
+	var syms = Object.getOwnPropertySymbols(obj);
+	if (syms.length !== 1 || syms[0] !== sym) { return false; }
+
+	if (!Object.prototype.propertyIsEnumerable.call(obj, sym)) { return false; }
+
+	if (typeof Object.getOwnPropertyDescriptor === 'function') {
+		// eslint-disable-next-line no-extra-parens
+		var descriptor = /** @type {PropertyDescriptor} */ (Object.getOwnPropertyDescriptor(obj, sym));
+		if (descriptor.value !== symVal || descriptor.enumerable !== true) { return false; }
+	}
+
+	return true;
+};
diff --git a/backend/node_modules/has-symbols/test/index.js b/backend/node_modules/has-symbols/test/index.js
new file mode 100644
index 0000000..352129c
--- /dev/null
+++ b/backend/node_modules/has-symbols/test/index.js
@@ -0,0 +1,22 @@
+'use strict';
+
+var test = require('tape');
+var hasSymbols = require('../');
+var runSymbolTests = require('./tests');
+
+test('interface', function (t) {
+	t.equal(typeof hasSymbols, 'function', 'is a function');
+	t.equal(typeof hasSymbols(), 'boolean', 'returns a boolean');
+	t.end();
+});
+
+test('Symbols are supported', { skip: !hasSymbols() }, function (t) {
+	runSymbolTests(t);
+	t.end();
+});
+
+test('Symbols are not supported', { skip: hasSymbols() }, function (t) {
+	t.equal(typeof Symbol, 'undefined', 'global Symbol is undefined');
+	t.equal(typeof Object.getOwnPropertySymbols, 'undefined', 'Object.getOwnPropertySymbols does not exist');
+	t.end();
+});
diff --git a/backend/node_modules/has-symbols/test/shams/core-js.js b/backend/node_modules/has-symbols/test/shams/core-js.js
new file mode 100644
index 0000000..1a29024
--- /dev/null
+++ b/backend/node_modules/has-symbols/test/shams/core-js.js
@@ -0,0 +1,29 @@
+'use strict';
+
+var test = require('tape');
+
+if (typeof Symbol === 'function' && typeof Symbol() === 'symbol') {
+	test('has native Symbol support', function (t) {
+		t.equal(typeof Symbol, 'function');
+		t.equal(typeof Symbol(), 'symbol');
+		t.end();
+	});
+	// @ts-expect-error TS is stupid and doesn't know about top level return
+	return;
+}
+
+var hasSymbols = require('../../shams');
+
+test('polyfilled Symbols', function (t) {
+	/* eslint-disable global-require */
+	t.equal(hasSymbols(), false, 'hasSymbols is false before polyfilling');
+	require('core-js/fn/symbol');
+	require('core-js/fn/symbol/to-string-tag');
+
+	require('../tests')(t);
+
+	var hasSymbolsAfter = hasSymbols();
+	t.equal(hasSymbolsAfter, true, 'hasSymbols is true after polyfilling');
+	/* eslint-enable global-require */
+	t.end();
+});
diff --git a/backend/node_modules/has-symbols/test/shams/get-own-property-symbols.js b/backend/node_modules/has-symbols/test/shams/get-own-property-symbols.js
new file mode 100644
index 0000000..e0296f8
--- /dev/null
+++ b/backend/node_modules/has-symbols/test/shams/get-own-property-symbols.js
@@ -0,0 +1,29 @@
+'use strict';
+
+var test = require('tape');
+
+if (typeof Symbol === 'function' && typeof Symbol() === 'symbol') {
+	test('has native Symbol support', function (t) {
+		t.equal(typeof Symbol, 'function');
+		t.equal(typeof Symbol(), 'symbol');
+		t.end();
+	});
+	// @ts-expect-error TS is stupid and doesn't know about top level return
+	return;
+}
+
+var hasSymbols = require('../../shams');
+
+test('polyfilled Symbols', function (t) {
+	/* eslint-disable global-require */
+	t.equal(hasSymbols(), false, 'hasSymbols is false before polyfilling');
+
+	require('get-own-property-symbols');
+
+	require('../tests')(t);
+
+	var hasSymbolsAfter = hasSymbols();
+	t.equal(hasSymbolsAfter, true, 'hasSymbols is true after polyfilling');
+	/* eslint-enable global-require */
+	t.end();
+});
diff --git a/backend/node_modules/has-symbols/test/tests.js b/backend/node_modules/has-symbols/test/tests.js
new file mode 100644
index 0000000..66a2cb8
--- /dev/null
+++ b/backend/node_modules/has-symbols/test/tests.js
@@ -0,0 +1,58 @@
+'use strict';
+
+/** @type {(t: import('tape').Test) => false | void} */
+// eslint-disable-next-line consistent-return
+module.exports = function runSymbolTests(t) {
+	t.equal(typeof Symbol, 'function', 'global Symbol is a function');
+
+	if (typeof Symbol !== 'function') { return false; }
+
+	t.notEqual(Symbol(), Symbol(), 'two symbols are not equal');
+
+	/*
+	t.equal(
+		Symbol.prototype.toString.call(Symbol('foo')),
+		Symbol.prototype.toString.call(Symbol('foo')),
+		'two symbols with the same description stringify the same'
+	);
+	*/
+
+	/*
+	var foo = Symbol('foo');
+
+	t.notEqual(
+		String(foo),
+		String(Symbol('bar')),
+		'two symbols with different descriptions do not stringify the same'
+	);
+	*/
+
+	t.equal(typeof Symbol.prototype.toString, 'function', 'Symbol#toString is a function');
+	// t.equal(String(foo), Symbol.prototype.toString.call(foo), 'Symbol#toString equals String of the same symbol');
+
+	t.equal(typeof Object.getOwnPropertySymbols, 'function', 'Object.getOwnPropertySymbols is a function');
+
+	/** @type {{ [k in symbol]?: unknown }} */
+	var obj = {};
+	var sym = Symbol('test');
+	var symObj = Object(sym);
+	t.notEqual(typeof sym, 'string', 'Symbol is not a string');
+	t.equal(Object.prototype.toString.call(sym), '[object Symbol]', 'symbol primitive Object#toStrings properly');
+	t.equal(Object.prototype.toString.call(symObj), '[object Symbol]', 'symbol primitive Object#toStrings properly');
+
+	var symVal = 42;
+	obj[sym] = symVal;
+	// eslint-disable-next-line no-restricted-syntax, no-unused-vars
+	for (var _ in obj) { t.fail('symbol property key was found in for..in of object'); }
+
+	t.deepEqual(Object.keys(obj), [], 'no enumerable own keys on symbol-valued object');
+	t.deepEqual(Object.getOwnPropertyNames(obj), [], 'no own names on symbol-valued object');
+	t.deepEqual(Object.getOwnPropertySymbols(obj), [sym], 'one own symbol on symbol-valued object');
+	t.equal(Object.prototype.propertyIsEnumerable.call(obj, sym), true, 'symbol is enumerable');
+	t.deepEqual(Object.getOwnPropertyDescriptor(obj, sym), {
+		configurable: true,
+		enumerable: true,
+		value: 42,
+		writable: true
+	}, 'property descriptor is correct');
+};
diff --git a/backend/node_modules/has-symbols/tsconfig.json b/backend/node_modules/has-symbols/tsconfig.json
new file mode 100644
index 0000000..ba99af4
--- /dev/null
+++ b/backend/node_modules/has-symbols/tsconfig.json
@@ -0,0 +1,10 @@
+{
+	"extends": "@ljharb/tsconfig",
+	"compilerOptions": {
+		"target": "ES2021",
+		"maxNodeModuleJsDepth": 0,
+	},
+	"exclude": [
+		"coverage"
+	]
+}
diff --git a/backend/node_modules/hasown/.eslintrc b/backend/node_modules/hasown/.eslintrc
new file mode 100644
index 0000000..3b5d9e9
--- /dev/null
+++ b/backend/node_modules/hasown/.eslintrc
@@ -0,0 +1,5 @@
+{
+	"root": true,
+
+	"extends": "@ljharb",
+}
diff --git a/backend/node_modules/hasown/.github/FUNDING.yml b/backend/node_modules/hasown/.github/FUNDING.yml
new file mode 100644
index 0000000..d68c8b7
--- /dev/null
+++ b/backend/node_modules/hasown/.github/FUNDING.yml
@@ -0,0 +1,12 @@
+# These are supported funding model platforms
+
+github: [ljharb]
+patreon: # Replace with a single Patreon username
+open_collective: # Replace with a single Open Collective username
+ko_fi: # Replace with a single Ko-fi username
+tidelift: npm/hasown
+community_bridge: # Replace with a single Community Bridge project-name e.g., cloud-foundry
+liberapay: # Replace with a single Liberapay username
+issuehunt: # Replace with a single IssueHunt username
+otechie: # Replace with a single Otechie username
+custom: # Replace with a single custom sponsorship URL
diff --git a/backend/node_modules/hasown/.nycrc b/backend/node_modules/hasown/.nycrc
new file mode 100644
index 0000000..1826526
--- /dev/null
+++ b/backend/node_modules/hasown/.nycrc
@@ -0,0 +1,13 @@
+{
+	"all": true,
+	"check-coverage": false,
+	"reporter": ["text-summary", "text", "html", "json"],
+	"lines": 86,
+	"statements": 85.93,
+	"functions": 82.43,
+	"branches": 76.06,
+	"exclude": [
+		"coverage",
+		"test"
+	]
+}
diff --git a/backend/node_modules/hasown/CHANGELOG.md b/backend/node_modules/hasown/CHANGELOG.md
new file mode 100644
index 0000000..2b0a980
--- /dev/null
+++ b/backend/node_modules/hasown/CHANGELOG.md
@@ -0,0 +1,40 @@
+# Changelog
+
+All notable changes to this project will be documented in this file.
+
+The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/)
+and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
+
+## [v2.0.2](https://github.com/inspect-js/hasOwn/compare/v2.0.1...v2.0.2) - 2024-03-10
+
+### Commits
+
+- [types] use shared config [`68e9d4d`](https://github.com/inspect-js/hasOwn/commit/68e9d4dab6facb4f05f02c6baea94a3f2a4e44b2)
+- [actions] remove redundant finisher; use reusable workflow [`241a68e`](https://github.com/inspect-js/hasOwn/commit/241a68e13ea1fe52bec5ba7f74144befc31fae7b)
+- [Tests] increase coverage [`4125c0d`](https://github.com/inspect-js/hasOwn/commit/4125c0d6121db56ae30e38346dfb0c000b04f0a7)
+- [Tests] skip `npm ls` in old node due to TS [`01b9282`](https://github.com/inspect-js/hasOwn/commit/01b92822f9971dea031eafdd14767df41d61c202)
+- [types] improve predicate type [`d340f85`](https://github.com/inspect-js/hasOwn/commit/d340f85ce02e286ef61096cbbb6697081d40a12b)
+- [Dev Deps] update `tape` [`70089fc`](https://github.com/inspect-js/hasOwn/commit/70089fcf544e64acc024cbe60f5a9b00acad86de)
+- [Tests] use `@arethetypeswrong/cli` [`50b272c`](https://github.com/inspect-js/hasOwn/commit/50b272c829f40d053a3dd91c9796e0ac0b2af084)
+
+## [v2.0.1](https://github.com/inspect-js/hasOwn/compare/v2.0.0...v2.0.1) - 2024-02-10
+
+### Commits
+
+- [types] use a handwritten d.ts file; fix exported type [`012b989`](https://github.com/inspect-js/hasOwn/commit/012b9898ccf91dc441e2ebf594ff70270a5fda58)
+- [Dev Deps] update `@types/function-bind`, `@types/mock-property`, `@types/tape`, `aud`, `mock-property`, `npmignore`, `tape`, `typescript` [`977a56f`](https://github.com/inspect-js/hasOwn/commit/977a56f51a1f8b20566f3c471612137894644025)
+- [meta] add `sideEffects` flag [`3a60b7b`](https://github.com/inspect-js/hasOwn/commit/3a60b7bf42fccd8c605e5f145a6fcc83b13cb46f)
+
+## [v2.0.0](https://github.com/inspect-js/hasOwn/compare/v1.0.1...v2.0.0) - 2023-10-19
+
+### Commits
+
+- revamped implementation, tests, readme [`72bf8b3`](https://github.com/inspect-js/hasOwn/commit/72bf8b338e77a638f0a290c63ffaed18339c36b4)
+- [meta] revamp package.json [`079775f`](https://github.com/inspect-js/hasOwn/commit/079775fb1ec72c1c6334069593617a0be3847458)
+- Only apps should have lockfiles [`6640e23`](https://github.com/inspect-js/hasOwn/commit/6640e233d1bb8b65260880f90787637db157d215)
+
+## v1.0.1 - 2023-10-10
+
+### Commits
+
+- Initial commit [`8dbfde6`](https://github.com/inspect-js/hasOwn/commit/8dbfde6e8fb0ebb076fab38d138f2984eb340a62)
diff --git a/backend/node_modules/hasown/LICENSE b/backend/node_modules/hasown/LICENSE
new file mode 100644
index 0000000..0314929
--- /dev/null
+++ b/backend/node_modules/hasown/LICENSE
@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) Jordan Harband and contributors
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
diff --git a/backend/node_modules/hasown/README.md b/backend/node_modules/hasown/README.md
new file mode 100644
index 0000000..f759b8a
--- /dev/null
+++ b/backend/node_modules/hasown/README.md
@@ -0,0 +1,40 @@
+# hasown <sup>[![Version Badge][npm-version-svg]][package-url]</sup>
+
+[![github actions][actions-image]][actions-url]
+[![coverage][codecov-image]][codecov-url]
+[![License][license-image]][license-url]
+[![Downloads][downloads-image]][downloads-url]
+
+[![npm badge][npm-badge-png]][package-url]
+
+A robust, ES3 compatible, "has own property" predicate.
+
+## Example
+
+```js
+const assert = require('assert');
+const hasOwn = require('hasown');
+
+assert.equal(hasOwn({}, 'toString'), false);
+assert.equal(hasOwn([], 'length'), true);
+assert.equal(hasOwn({ a: 42 }, 'a'), true);
+```
+
+## Tests
+Simply clone the repo, `npm install`, and run `npm test`
+
+[package-url]: https://npmjs.org/package/hasown
+[npm-version-svg]: https://versionbadg.es/inspect-js/hasown.svg
+[deps-svg]: https://david-dm.org/inspect-js/hasOwn.svg
+[deps-url]: https://david-dm.org/inspect-js/hasOwn
+[dev-deps-svg]: https://david-dm.org/inspect-js/hasOwn/dev-status.svg
+[dev-deps-url]: https://david-dm.org/inspect-js/hasOwn#info=devDependencies
+[npm-badge-png]: https://nodei.co/npm/hasown.png?downloads=true&stars=true
+[license-image]: https://img.shields.io/npm/l/hasown.svg
+[license-url]: LICENSE
+[downloads-image]: https://img.shields.io/npm/dm/hasown.svg
+[downloads-url]: https://npm-stat.com/charts.html?package=hasown
+[codecov-image]: https://codecov.io/gh/inspect-js/hasOwn/branch/main/graphs/badge.svg
+[codecov-url]: https://app.codecov.io/gh/inspect-js/hasOwn/
+[actions-image]: https://img.shields.io/endpoint?url=https://github-actions-badge-u3jn4tfpocch.runkit.sh/inspect-js/hasOwn
+[actions-url]: https://github.com/inspect-js/hasOwn/actions
diff --git a/backend/node_modules/hasown/index.d.ts b/backend/node_modules/hasown/index.d.ts
new file mode 100644
index 0000000..aafdf3b
--- /dev/null
+++ b/backend/node_modules/hasown/index.d.ts
@@ -0,0 +1,3 @@
+declare function hasOwn<O, K extends PropertyKey, V = unknown>(o: O, p: K): o is O & Record<K, V>;
+
+export = hasOwn;
diff --git a/backend/node_modules/hasown/index.js b/backend/node_modules/hasown/index.js
new file mode 100644
index 0000000..34e6059
--- /dev/null
+++ b/backend/node_modules/hasown/index.js
@@ -0,0 +1,8 @@
+'use strict';
+
+var call = Function.prototype.call;
+var $hasOwn = Object.prototype.hasOwnProperty;
+var bind = require('function-bind');
+
+/** @type {import('.')} */
+module.exports = bind.call(call, $hasOwn);
diff --git a/backend/node_modules/hasown/package.json b/backend/node_modules/hasown/package.json
new file mode 100644
index 0000000..8502e13
--- /dev/null
+++ b/backend/node_modules/hasown/package.json
@@ -0,0 +1,92 @@
+{
+	"name": "hasown",
+	"version": "2.0.2",
+	"description": "A robust, ES3 compatible, \"has own property\" predicate.",
+	"main": "index.js",
+	"exports": {
+		".": "./index.js",
+		"./package.json": "./package.json"
+	},
+	"types": "index.d.ts",
+	"sideEffects": false,
+	"scripts": {
+		"prepack": "npmignore --auto --commentLines=autogenerated",
+		"prepublish": "not-in-publish || npm run prepublishOnly",
+		"prepublishOnly": "safe-publish-latest",
+		"prelint": "evalmd README.md",
+		"lint": "eslint --ext=js,mjs .",
+		"postlint": "npm run tsc",
+		"pretest": "npm run lint",
+		"tsc": "tsc -p .",
+		"posttsc": "attw -P",
+		"tests-only": "nyc tape 'test/**/*.js'",
+		"test": "npm run tests-only",
+		"posttest": "aud --production",
+		"version": "auto-changelog && git add CHANGELOG.md",
+		"postversion": "auto-changelog && git add CHANGELOG.md && git commit --no-edit --amend && git tag -f \"v$(node -e \"console.log(require('./package.json').version)\")\""
+	},
+	"repository": {
+		"type": "git",
+		"url": "git+https://github.com/inspect-js/hasOwn.git"
+	},
+	"keywords": [
+		"has",
+		"hasOwnProperty",
+		"hasOwn",
+		"has-own",
+		"own",
+		"has",
+		"property",
+		"in",
+		"javascript",
+		"ecmascript"
+	],
+	"author": "Jordan Harband <ljharb@gmail.com>",
+	"license": "MIT",
+	"bugs": {
+		"url": "https://github.com/inspect-js/hasOwn/issues"
+	},
+	"homepage": "https://github.com/inspect-js/hasOwn#readme",
+	"dependencies": {
+		"function-bind": "^1.1.2"
+	},
+	"devDependencies": {
+		"@arethetypeswrong/cli": "^0.15.1",
+		"@ljharb/eslint-config": "^21.1.0",
+		"@ljharb/tsconfig": "^0.2.0",
+		"@types/function-bind": "^1.1.10",
+		"@types/mock-property": "^1.0.2",
+		"@types/tape": "^5.6.4",
+		"aud": "^2.0.4",
+		"auto-changelog": "^2.4.0",
+		"eslint": "=8.8.0",
+		"evalmd": "^0.0.19",
+		"in-publish": "^2.0.1",
+		"mock-property": "^1.0.3",
+		"npmignore": "^0.3.1",
+		"nyc": "^10.3.2",
+		"safe-publish-latest": "^2.0.0",
+		"tape": "^5.7.5",
+		"typescript": "next"
+	},
+	"engines": {
+		"node": ">= 0.4"
+	},
+	"testling": {
+		"files": "test/index.js"
+	},
+	"auto-changelog": {
+		"output": "CHANGELOG.md",
+		"template": "keepachangelog",
+		"unreleased": false,
+		"commitLimit": false,
+		"backfillLimit": false,
+		"hideCredit": true
+	},
+	"publishConfig": {
+		"ignore": [
+			".github/workflows",
+			"test"
+		]
+	}
+}
diff --git a/backend/node_modules/hasown/tsconfig.json b/backend/node_modules/hasown/tsconfig.json
new file mode 100644
index 0000000..0930c56
--- /dev/null
+++ b/backend/node_modules/hasown/tsconfig.json
@@ -0,0 +1,6 @@
+{
+  "extends": "@ljharb/tsconfig",
+  "exclude": [
+    "coverage",
+  ],
+}
diff --git a/backend/node_modules/http-errors/HISTORY.md b/backend/node_modules/http-errors/HISTORY.md
new file mode 100644
index 0000000..7228684
--- /dev/null
+++ b/backend/node_modules/http-errors/HISTORY.md
@@ -0,0 +1,180 @@
+2.0.0 / 2021-12-17
+==================
+
+  * Drop support for Node.js 0.6
+  * Remove `I'mateapot` export; use `ImATeapot` instead
+  * Remove support for status being non-first argument
+  * Rename `UnorderedCollection` constructor to `TooEarly`
+  * deps: depd@2.0.0
+    - Replace internal `eval` usage with `Function` constructor
+    - Use instance methods on `process` to check for listeners
+  * deps: statuses@2.0.1
+    - Fix messaging casing of `418 I'm a Teapot`
+    - Remove code 306
+    - Rename `425 Unordered Collection` to standard `425 Too Early`
+
+2021-11-14 / 1.8.1
+==================
+
+  * deps: toidentifier@1.0.1
+
+2020-06-29 / 1.8.0
+==================
+
+  * Add `isHttpError` export to determine if value is an HTTP error
+  * deps: setprototypeof@1.2.0
+
+2019-06-24 / 1.7.3
+==================
+
+  * deps: inherits@2.0.4
+
+2019-02-18 / 1.7.2
+==================
+
+  * deps: setprototypeof@1.1.1
+
+2018-09-08 / 1.7.1
+==================
+
+  * Fix error creating objects in some environments
+
+2018-07-30 / 1.7.0
+==================
+
+  * Set constructor name when possible
+  * Use `toidentifier` module to make class names
+  * deps: statuses@'>= 1.5.0 < 2'
+
+2018-03-29 / 1.6.3
+==================
+
+  * deps: depd@~1.1.2
+    - perf: remove argument reassignment
+  * deps: setprototypeof@1.1.0
+  * deps: statuses@'>= 1.4.0 < 2'
+
+2017-08-04 / 1.6.2
+==================
+
+  * deps: depd@1.1.1
+    - Remove unnecessary `Buffer` loading
+
+2017-02-20 / 1.6.1
+==================
+
+  * deps: setprototypeof@1.0.3
+    - Fix shim for old browsers
+
+2017-02-14 / 1.6.0
+==================
+
+  * Accept custom 4xx and 5xx status codes in factory
+  * Add deprecation message to `"I'mateapot"` export
+  * Deprecate passing status code as anything except first argument in factory
+  * Deprecate using non-error status codes
+  * Make `message` property enumerable for `HttpError`s
+
+2016-11-16 / 1.5.1
+==================
+
+  * deps: inherits@2.0.3
+    - Fix issue loading in browser
+  * deps: setprototypeof@1.0.2
+  * deps: statuses@'>= 1.3.1 < 2'
+
+2016-05-18 / 1.5.0
+==================
+
+  * Support new code `421 Misdirected Request`
+  * Use `setprototypeof` module to replace `__proto__` setting
+  * deps: statuses@'>= 1.3.0 < 2'
+    - Add `421 Misdirected Request`
+    - perf: enable strict mode
+  * perf: enable strict mode
+
+2016-01-28 / 1.4.0
+==================
+
+  * Add `HttpError` export, for `err instanceof createError.HttpError`
+  * deps: inherits@2.0.1
+  * deps: statuses@'>= 1.2.1 < 2'
+    - Fix message for status 451
+    - Remove incorrect nginx status code
+
+2015-02-02 / 1.3.1
+==================
+
+  * Fix regression where status can be overwritten in `createError` `props`
+
+2015-02-01 / 1.3.0
+==================
+
+  * Construct errors using defined constructors from `createError`
+  * Fix error names that are not identifiers
+    - `createError["I'mateapot"]` is now `createError.ImATeapot`
+  * Set a meaningful `name` property on constructed errors
+
+2014-12-09 / 1.2.8
+==================
+
+  * Fix stack trace from exported function
+  * Remove `arguments.callee` usage
+
+2014-10-14 / 1.2.7
+==================
+
+  * Remove duplicate line
+
+2014-10-02 / 1.2.6
+==================
+
+  * Fix `expose` to be `true` for `ClientError` constructor
+
+2014-09-28 / 1.2.5
+==================
+
+  * deps: statuses@1
+
+2014-09-21 / 1.2.4
+==================
+
+  * Fix dependency version to work with old `npm`s
+
+2014-09-21 / 1.2.3
+==================
+
+  * deps: statuses@~1.1.0
+
+2014-09-21 / 1.2.2
+==================
+
+  * Fix publish error
+
+2014-09-21 / 1.2.1
+==================
+
+  * Support Node.js 0.6
+  * Use `inherits` instead of `util`
+
+2014-09-09 / 1.2.0
+==================
+
+  * Fix the way inheriting functions
+  * Support `expose` being provided in properties argument
+
+2014-09-08 / 1.1.0
+==================
+
+  * Default status to 500
+  * Support provided `error` to extend
+
+2014-09-08 / 1.0.1
+==================
+
+  * Fix accepting string message
+
+2014-09-08 / 1.0.0
+==================
+
+  * Initial release
diff --git a/backend/node_modules/http-errors/LICENSE b/backend/node_modules/http-errors/LICENSE
new file mode 100644
index 0000000..82af4df
--- /dev/null
+++ b/backend/node_modules/http-errors/LICENSE
@@ -0,0 +1,23 @@
+
+The MIT License (MIT)
+
+Copyright (c) 2014 Jonathan Ong me@jongleberry.com
+Copyright (c) 2016 Douglas Christopher Wilson doug@somethingdoug.com
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
diff --git a/backend/node_modules/http-errors/README.md b/backend/node_modules/http-errors/README.md
new file mode 100644
index 0000000..a8b7330
--- /dev/null
+++ b/backend/node_modules/http-errors/README.md
@@ -0,0 +1,169 @@
+# http-errors
+
+[![NPM Version][npm-version-image]][npm-url]
+[![NPM Downloads][npm-downloads-image]][node-url]
+[![Node.js Version][node-image]][node-url]
+[![Build Status][ci-image]][ci-url]
+[![Test Coverage][coveralls-image]][coveralls-url]
+
+Create HTTP errors for Express, Koa, Connect, etc. with ease.
+
+## Install
+
+This is a [Node.js](https://nodejs.org/en/) module available through the
+[npm registry](https://www.npmjs.com/). Installation is done using the
+[`npm install` command](https://docs.npmjs.com/getting-started/installing-npm-packages-locally):
+
+```console
+$ npm install http-errors
+```
+
+## Example
+
+```js
+var createError = require('http-errors')
+var express = require('express')
+var app = express()
+
+app.use(function (req, res, next) {
+  if (!req.user) return next(createError(401, 'Please login to view this page.'))
+  next()
+})
+```
+
+## API
+
+This is the current API, currently extracted from Koa and subject to change.
+
+### Error Properties
+
+- `expose` - can be used to signal if `message` should be sent to the client,
+  defaulting to `false` when `status` >= 500
+- `headers` - can be an object of header names to values to be sent to the
+  client, defaulting to `undefined`. When defined, the key names should all
+  be lower-cased
+- `message` - the traditional error message, which should be kept short and all
+  single line
+- `status` - the status code of the error, mirroring `statusCode` for general
+  compatibility
+- `statusCode` - the status code of the error, defaulting to `500`
+
+### createError([status], [message], [properties])
+
+Create a new error object with the given message `msg`.
+The error object inherits from `createError.HttpError`.
+
+```js
+var err = createError(404, 'This video does not exist!')
+```
+
+- `status: 500` - the status code as a number
+- `message` - the message of the error, defaulting to node's text for that status code.
+- `properties` - custom properties to attach to the object
+
+### createError([status], [error], [properties])
+
+Extend the given `error` object with `createError.HttpError`
+properties. This will not alter the inheritance of the given
+`error` object, and the modified `error` object is the
+return value.
+
+<!-- eslint-disable no-redeclare -->
+
+```js
+fs.readFile('foo.txt', function (err, buf) {
+  if (err) {
+    if (err.code === 'ENOENT') {
+      var httpError = createError(404, err, { expose: false })
+    } else {
+      var httpError = createError(500, err)
+    }
+  }
+})
+```
+
+- `status` - the status code as a number
+- `error` - the error object to extend
+- `properties` - custom properties to attach to the object
+
+### createError.isHttpError(val)
+
+Determine if the provided `val` is an `HttpError`. This will return `true`
+if the error inherits from the `HttpError` constructor of this module or
+matches the "duck type" for an error this module creates. All outputs from
+the `createError` factory will return `true` for this function, including
+if an non-`HttpError` was passed into the factory.
+
+### new createError\[code || name\](\[msg]\))
+
+Create a new error object with the given message `msg`.
+The error object inherits from `createError.HttpError`.
+
+```js
+var err = new createError.NotFound()
+```
+
+- `code` - the status code as a number
+- `name` - the name of the error as a "bumpy case", i.e. `NotFound` or `InternalServerError`.
+
+#### List of all constructors
+
+|Status Code|Constructor Name             |
+|-----------|-----------------------------|
+|400        |BadRequest                   |
+|401        |Unauthorized                 |
+|402        |PaymentRequired              |
+|403        |Forbidden                    |
+|404        |NotFound                     |
+|405        |MethodNotAllowed             |
+|406        |NotAcceptable                |
+|407        |ProxyAuthenticationRequired  |
+|408        |RequestTimeout               |
+|409        |Conflict                     |
+|410        |Gone                         |
+|411        |LengthRequired               |
+|412        |PreconditionFailed           |
+|413        |PayloadTooLarge              |
+|414        |URITooLong                   |
+|415        |UnsupportedMediaType         |
+|416        |RangeNotSatisfiable          |
+|417        |ExpectationFailed            |
+|418        |ImATeapot                    |
+|421        |MisdirectedRequest           |
+|422        |UnprocessableEntity          |
+|423        |Locked                       |
+|424        |FailedDependency             |
+|425        |TooEarly                     |
+|426        |UpgradeRequired              |
+|428        |PreconditionRequired         |
+|429        |TooManyRequests              |
+|431        |RequestHeaderFieldsTooLarge  |
+|451        |UnavailableForLegalReasons   |
+|500        |InternalServerError          |
+|501        |NotImplemented               |
+|502        |BadGateway                   |
+|503        |ServiceUnavailable           |
+|504        |GatewayTimeout               |
+|505        |HTTPVersionNotSupported      |
+|506        |VariantAlsoNegotiates        |
+|507        |InsufficientStorage          |
+|508        |LoopDetected                 |
+|509        |BandwidthLimitExceeded       |
+|510        |NotExtended                  |
+|511        |NetworkAuthenticationRequired|
+
+## License
+
+[MIT](LICENSE)
+
+[ci-image]: https://badgen.net/github/checks/jshttp/http-errors/master?label=ci
+[ci-url]: https://github.com/jshttp/http-errors/actions?query=workflow%3Aci
+[coveralls-image]: https://badgen.net/coveralls/c/github/jshttp/http-errors/master
+[coveralls-url]: https://coveralls.io/r/jshttp/http-errors?branch=master
+[node-image]: https://badgen.net/npm/node/http-errors
+[node-url]: https://nodejs.org/en/download
+[npm-downloads-image]: https://badgen.net/npm/dm/http-errors
+[npm-url]: https://npmjs.org/package/http-errors
+[npm-version-image]: https://badgen.net/npm/v/http-errors
+[travis-image]: https://badgen.net/travis/jshttp/http-errors/master
+[travis-url]: https://travis-ci.org/jshttp/http-errors
diff --git a/backend/node_modules/http-errors/index.js b/backend/node_modules/http-errors/index.js
new file mode 100644
index 0000000..c425f1e
--- /dev/null
+++ b/backend/node_modules/http-errors/index.js
@@ -0,0 +1,289 @@
+/*!
+ * http-errors
+ * Copyright(c) 2014 Jonathan Ong
+ * Copyright(c) 2016 Douglas Christopher Wilson
+ * MIT Licensed
+ */
+
+'use strict'
+
+/**
+ * Module dependencies.
+ * @private
+ */
+
+var deprecate = require('depd')('http-errors')
+var setPrototypeOf = require('setprototypeof')
+var statuses = require('statuses')
+var inherits = require('inherits')
+var toIdentifier = require('toidentifier')
+
+/**
+ * Module exports.
+ * @public
+ */
+
+module.exports = createError
+module.exports.HttpError = createHttpErrorConstructor()
+module.exports.isHttpError = createIsHttpErrorFunction(module.exports.HttpError)
+
+// Populate exports for all constructors
+populateConstructorExports(module.exports, statuses.codes, module.exports.HttpError)
+
+/**
+ * Get the code class of a status code.
+ * @private
+ */
+
+function codeClass (status) {
+  return Number(String(status).charAt(0) + '00')
+}
+
+/**
+ * Create a new HTTP Error.
+ *
+ * @returns {Error}
+ * @public
+ */
+
+function createError () {
+  // so much arity going on ~_~
+  var err
+  var msg
+  var status = 500
+  var props = {}
+  for (var i = 0; i < arguments.length; i++) {
+    var arg = arguments[i]
+    var type = typeof arg
+    if (type === 'object' && arg instanceof Error) {
+      err = arg
+      status = err.status || err.statusCode || status
+    } else if (type === 'number' && i === 0) {
+      status = arg
+    } else if (type === 'string') {
+      msg = arg
+    } else if (type === 'object') {
+      props = arg
+    } else {
+      throw new TypeError('argument #' + (i + 1) + ' unsupported type ' + type)
+    }
+  }
+
+  if (typeof status === 'number' && (status < 400 || status >= 600)) {
+    deprecate('non-error status code; use only 4xx or 5xx status codes')
+  }
+
+  if (typeof status !== 'number' ||
+    (!statuses.message[status] && (status < 400 || status >= 600))) {
+    status = 500
+  }
+
+  // constructor
+  var HttpError = createError[status] || createError[codeClass(status)]
+
+  if (!err) {
+    // create error
+    err = HttpError
+      ? new HttpError(msg)
+      : new Error(msg || statuses.message[status])
+    Error.captureStackTrace(err, createError)
+  }
+
+  if (!HttpError || !(err instanceof HttpError) || err.status !== status) {
+    // add properties to generic error
+    err.expose = status < 500
+    err.status = err.statusCode = status
+  }
+
+  for (var key in props) {
+    if (key !== 'status' && key !== 'statusCode') {
+      err[key] = props[key]
+    }
+  }
+
+  return err
+}
+
+/**
+ * Create HTTP error abstract base class.
+ * @private
+ */
+
+function createHttpErrorConstructor () {
+  function HttpError () {
+    throw new TypeError('cannot construct abstract class')
+  }
+
+  inherits(HttpError, Error)
+
+  return HttpError
+}
+
+/**
+ * Create a constructor for a client error.
+ * @private
+ */
+
+function createClientErrorConstructor (HttpError, name, code) {
+  var className = toClassName(name)
+
+  function ClientError (message) {
+    // create the error object
+    var msg = message != null ? message : statuses.message[code]
+    var err = new Error(msg)
+
+    // capture a stack trace to the construction point
+    Error.captureStackTrace(err, ClientError)
+
+    // adjust the [[Prototype]]
+    setPrototypeOf(err, ClientError.prototype)
+
+    // redefine the error message
+    Object.defineProperty(err, 'message', {
+      enumerable: true,
+      configurable: true,
+      value: msg,
+      writable: true
+    })
+
+    // redefine the error name
+    Object.defineProperty(err, 'name', {
+      enumerable: false,
+      configurable: true,
+      value: className,
+      writable: true
+    })
+
+    return err
+  }
+
+  inherits(ClientError, HttpError)
+  nameFunc(ClientError, className)
+
+  ClientError.prototype.status = code
+  ClientError.prototype.statusCode = code
+  ClientError.prototype.expose = true
+
+  return ClientError
+}
+
+/**
+ * Create function to test is a value is a HttpError.
+ * @private
+ */
+
+function createIsHttpErrorFunction (HttpError) {
+  return function isHttpError (val) {
+    if (!val || typeof val !== 'object') {
+      return false
+    }
+
+    if (val instanceof HttpError) {
+      return true
+    }
+
+    return val instanceof Error &&
+      typeof val.expose === 'boolean' &&
+      typeof val.statusCode === 'number' && val.status === val.statusCode
+  }
+}
+
+/**
+ * Create a constructor for a server error.
+ * @private
+ */
+
+function createServerErrorConstructor (HttpError, name, code) {
+  var className = toClassName(name)
+
+  function ServerError (message) {
+    // create the error object
+    var msg = message != null ? message : statuses.message[code]
+    var err = new Error(msg)
+
+    // capture a stack trace to the construction point
+    Error.captureStackTrace(err, ServerError)
+
+    // adjust the [[Prototype]]
+    setPrototypeOf(err, ServerError.prototype)
+
+    // redefine the error message
+    Object.defineProperty(err, 'message', {
+      enumerable: true,
+      configurable: true,
+      value: msg,
+      writable: true
+    })
+
+    // redefine the error name
+    Object.defineProperty(err, 'name', {
+      enumerable: false,
+      configurable: true,
+      value: className,
+      writable: true
+    })
+
+    return err
+  }
+
+  inherits(ServerError, HttpError)
+  nameFunc(ServerError, className)
+
+  ServerError.prototype.status = code
+  ServerError.prototype.statusCode = code
+  ServerError.prototype.expose = false
+
+  return ServerError
+}
+
+/**
+ * Set the name of a function, if possible.
+ * @private
+ */
+
+function nameFunc (func, name) {
+  var desc = Object.getOwnPropertyDescriptor(func, 'name')
+
+  if (desc && desc.configurable) {
+    desc.value = name
+    Object.defineProperty(func, 'name', desc)
+  }
+}
+
+/**
+ * Populate the exports object with constructors for every error class.
+ * @private
+ */
+
+function populateConstructorExports (exports, codes, HttpError) {
+  codes.forEach(function forEachCode (code) {
+    var CodeError
+    var name = toIdentifier(statuses.message[code])
+
+    switch (codeClass(code)) {
+      case 400:
+        CodeError = createClientErrorConstructor(HttpError, name, code)
+        break
+      case 500:
+        CodeError = createServerErrorConstructor(HttpError, name, code)
+        break
+    }
+
+    if (CodeError) {
+      // export the constructor
+      exports[code] = CodeError
+      exports[name] = CodeError
+    }
+  })
+}
+
+/**
+ * Get a class name from a name identifier.
+ * @private
+ */
+
+function toClassName (name) {
+  return name.substr(-5) !== 'Error'
+    ? name + 'Error'
+    : name
+}
diff --git a/backend/node_modules/http-errors/node_modules/statuses/HISTORY.md b/backend/node_modules/http-errors/node_modules/statuses/HISTORY.md
new file mode 100644
index 0000000..fa4556e
--- /dev/null
+++ b/backend/node_modules/http-errors/node_modules/statuses/HISTORY.md
@@ -0,0 +1,82 @@
+2.0.1 / 2021-01-03
+==================
+
+  * Fix returning values from `Object.prototype`
+
+2.0.0 / 2020-04-19
+==================
+
+  * Drop support for Node.js 0.6
+  * Fix messaging casing of `418 I'm a Teapot`
+  * Remove code 306
+  * Remove `status[code]` exports; use `status.message[code]`
+  * Remove `status[msg]` exports; use `status.code[msg]`
+  * Rename `425 Unordered Collection` to standard `425 Too Early`
+  * Rename `STATUS_CODES` export to `message`
+  * Return status message for `statuses(code)` when given code
+
+1.5.0 / 2018-03-27
+==================
+
+  * Add `103 Early Hints`
+
+1.4.0 / 2017-10-20
+==================
+
+  * Add `STATUS_CODES` export
+
+1.3.1 / 2016-11-11
+==================
+
+  * Fix return type in JSDoc
+
+1.3.0 / 2016-05-17
+==================
+
+  * Add `421 Misdirected Request`
+  * perf: enable strict mode
+
+1.2.1 / 2015-02-01
+==================
+
+  * Fix message for status 451
+    - `451 Unavailable For Legal Reasons`
+
+1.2.0 / 2014-09-28
+==================
+
+  * Add `208 Already Repored`
+  * Add `226 IM Used`
+  * Add `306 (Unused)`
+  * Add `415 Unable For Legal Reasons`
+  * Add `508 Loop Detected`
+
+1.1.1 / 2014-09-24
+==================
+
+  * Add missing 308 to `codes.json`
+
+1.1.0 / 2014-09-21
+==================
+
+  * Add `codes.json` for universal support
+
+1.0.4 / 2014-08-20
+==================
+
+  * Package cleanup
+
+1.0.3 / 2014-06-08
+==================
+
+  * Add 308 to `.redirect` category
+
+1.0.2 / 2014-03-13
+==================
+
+  * Add `.retry` category
+
+1.0.1 / 2014-03-12
+==================
+
+  * Initial release
diff --git a/backend/node_modules/http-errors/node_modules/statuses/LICENSE b/backend/node_modules/http-errors/node_modules/statuses/LICENSE
new file mode 100644
index 0000000..28a3161
--- /dev/null
+++ b/backend/node_modules/http-errors/node_modules/statuses/LICENSE
@@ -0,0 +1,23 @@
+
+The MIT License (MIT)
+
+Copyright (c) 2014 Jonathan Ong <me@jongleberry.com>
+Copyright (c) 2016 Douglas Christopher Wilson <doug@somethingdoug.com>
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
diff --git a/backend/node_modules/http-errors/node_modules/statuses/README.md b/backend/node_modules/http-errors/node_modules/statuses/README.md
new file mode 100644
index 0000000..57967e6
--- /dev/null
+++ b/backend/node_modules/http-errors/node_modules/statuses/README.md
@@ -0,0 +1,136 @@
+# statuses
+
+[![NPM Version][npm-version-image]][npm-url]
+[![NPM Downloads][npm-downloads-image]][npm-url]
+[![Node.js Version][node-version-image]][node-version-url]
+[![Build Status][ci-image]][ci-url]
+[![Test Coverage][coveralls-image]][coveralls-url]
+
+HTTP status utility for node.
+
+This module provides a list of status codes and messages sourced from
+a few different projects:
+
+  * The [IANA Status Code Registry](https://www.iana.org/assignments/http-status-codes/http-status-codes.xhtml)
+  * The [Node.js project](https://nodejs.org/)
+  * The [NGINX project](https://www.nginx.com/)
+  * The [Apache HTTP Server project](https://httpd.apache.org/)
+
+## Installation
+
+This is a [Node.js](https://nodejs.org/en/) module available through the
+[npm registry](https://www.npmjs.com/). Installation is done using the
+[`npm install` command](https://docs.npmjs.com/getting-started/installing-npm-packages-locally):
+
+```sh
+$ npm install statuses
+```
+
+## API
+
+<!-- eslint-disable no-unused-vars -->
+
+```js
+var status = require('statuses')
+```
+
+### status(code)
+
+Returns the status message string for a known HTTP status code. The code
+may be a number or a string. An error is thrown for an unknown status code.
+
+<!-- eslint-disable no-undef -->
+
+```js
+status(403) // => 'Forbidden'
+status('403') // => 'Forbidden'
+status(306) // throws
+```
+
+### status(msg)
+
+Returns the numeric status code for a known HTTP status message. The message
+is case-insensitive. An error is thrown for an unknown status message.
+
+<!-- eslint-disable no-undef -->
+
+```js
+status('forbidden') // => 403
+status('Forbidden') // => 403
+status('foo') // throws
+```
+
+### status.codes
+
+Returns an array of all the status codes as `Integer`s.
+
+### status.code[msg]
+
+Returns the numeric status code for a known status message (in lower-case),
+otherwise `undefined`.
+
+<!-- eslint-disable no-undef, no-unused-expressions -->
+
+```js
+status['not found'] // => 404
+```
+
+### status.empty[code]
+
+Returns `true` if a status code expects an empty body.
+
+<!-- eslint-disable no-undef, no-unused-expressions -->
+
+```js
+status.empty[200] // => undefined
+status.empty[204] // => true
+status.empty[304] // => true
+```
+
+### status.message[code]
+
+Returns the string message for a known numeric status code, otherwise
+`undefined`. This object is the same format as the
+[Node.js http module `http.STATUS_CODES`](https://nodejs.org/dist/latest/docs/api/http.html#http_http_status_codes).
+
+<!-- eslint-disable no-undef, no-unused-expressions -->
+
+```js
+status.message[404] // => 'Not Found'
+```
+
+### status.redirect[code]
+
+Returns `true` if a status code is a valid redirect status.
+
+<!-- eslint-disable no-undef, no-unused-expressions -->
+
+```js
+status.redirect[200] // => undefined
+status.redirect[301] // => true
+```
+
+### status.retry[code]
+
+Returns `true` if you should retry the rest.
+
+<!-- eslint-disable no-undef, no-unused-expressions -->
+
+```js
+status.retry[501] // => undefined
+status.retry[503] // => true
+```
+
+## License
+
+[MIT](LICENSE)
+
+[ci-image]: https://badgen.net/github/checks/jshttp/statuses/master?label=ci
+[ci-url]: https://github.com/jshttp/statuses/actions?query=workflow%3Aci
+[coveralls-image]: https://badgen.net/coveralls/c/github/jshttp/statuses/master
+[coveralls-url]: https://coveralls.io/r/jshttp/statuses?branch=master
+[node-version-image]: https://badgen.net/npm/node/statuses
+[node-version-url]: https://nodejs.org/en/download
+[npm-downloads-image]: https://badgen.net/npm/dm/statuses
+[npm-url]: https://npmjs.org/package/statuses
+[npm-version-image]: https://badgen.net/npm/v/statuses
diff --git a/backend/node_modules/http-errors/node_modules/statuses/codes.json b/backend/node_modules/http-errors/node_modules/statuses/codes.json
new file mode 100644
index 0000000..1333ed1
--- /dev/null
+++ b/backend/node_modules/http-errors/node_modules/statuses/codes.json
@@ -0,0 +1,65 @@
+{
+  "100": "Continue",
+  "101": "Switching Protocols",
+  "102": "Processing",
+  "103": "Early Hints",
+  "200": "OK",
+  "201": "Created",
+  "202": "Accepted",
+  "203": "Non-Authoritative Information",
+  "204": "No Content",
+  "205": "Reset Content",
+  "206": "Partial Content",
+  "207": "Multi-Status",
+  "208": "Already Reported",
+  "226": "IM Used",
+  "300": "Multiple Choices",
+  "301": "Moved Permanently",
+  "302": "Found",
+  "303": "See Other",
+  "304": "Not Modified",
+  "305": "Use Proxy",
+  "307": "Temporary Redirect",
+  "308": "Permanent Redirect",
+  "400": "Bad Request",
+  "401": "Unauthorized",
+  "402": "Payment Required",
+  "403": "Forbidden",
+  "404": "Not Found",
+  "405": "Method Not Allowed",
+  "406": "Not Acceptable",
+  "407": "Proxy Authentication Required",
+  "408": "Request Timeout",
+  "409": "Conflict",
+  "410": "Gone",
+  "411": "Length Required",
+  "412": "Precondition Failed",
+  "413": "Payload Too Large",
+  "414": "URI Too Long",
+  "415": "Unsupported Media Type",
+  "416": "Range Not Satisfiable",
+  "417": "Expectation Failed",
+  "418": "I'm a Teapot",
+  "421": "Misdirected Request",
+  "422": "Unprocessable Entity",
+  "423": "Locked",
+  "424": "Failed Dependency",
+  "425": "Too Early",
+  "426": "Upgrade Required",
+  "428": "Precondition Required",
+  "429": "Too Many Requests",
+  "431": "Request Header Fields Too Large",
+  "451": "Unavailable For Legal Reasons",
+  "500": "Internal Server Error",
+  "501": "Not Implemented",
+  "502": "Bad Gateway",
+  "503": "Service Unavailable",
+  "504": "Gateway Timeout",
+  "505": "HTTP Version Not Supported",
+  "506": "Variant Also Negotiates",
+  "507": "Insufficient Storage",
+  "508": "Loop Detected",
+  "509": "Bandwidth Limit Exceeded",
+  "510": "Not Extended",
+  "511": "Network Authentication Required"
+}
diff --git a/backend/node_modules/http-errors/node_modules/statuses/index.js b/backend/node_modules/http-errors/node_modules/statuses/index.js
new file mode 100644
index 0000000..ea351c5
--- /dev/null
+++ b/backend/node_modules/http-errors/node_modules/statuses/index.js
@@ -0,0 +1,146 @@
+/*!
+ * statuses
+ * Copyright(c) 2014 Jonathan Ong
+ * Copyright(c) 2016 Douglas Christopher Wilson
+ * MIT Licensed
+ */
+
+'use strict'
+
+/**
+ * Module dependencies.
+ * @private
+ */
+
+var codes = require('./codes.json')
+
+/**
+ * Module exports.
+ * @public
+ */
+
+module.exports = status
+
+// status code to message map
+status.message = codes
+
+// status message (lower-case) to code map
+status.code = createMessageToStatusCodeMap(codes)
+
+// array of status codes
+status.codes = createStatusCodeList(codes)
+
+// status codes for redirects
+status.redirect = {
+  300: true,
+  301: true,
+  302: true,
+  303: true,
+  305: true,
+  307: true,
+  308: true
+}
+
+// status codes for empty bodies
+status.empty = {
+  204: true,
+  205: true,
+  304: true
+}
+
+// status codes for when you should retry the request
+status.retry = {
+  502: true,
+  503: true,
+  504: true
+}
+
+/**
+ * Create a map of message to status code.
+ * @private
+ */
+
+function createMessageToStatusCodeMap (codes) {
+  var map = {}
+
+  Object.keys(codes).forEach(function forEachCode (code) {
+    var message = codes[code]
+    var status = Number(code)
+
+    // populate map
+    map[message.toLowerCase()] = status
+  })
+
+  return map
+}
+
+/**
+ * Create a list of all status codes.
+ * @private
+ */
+
+function createStatusCodeList (codes) {
+  return Object.keys(codes).map(function mapCode (code) {
+    return Number(code)
+  })
+}
+
+/**
+ * Get the status code for given message.
+ * @private
+ */
+
+function getStatusCode (message) {
+  var msg = message.toLowerCase()
+
+  if (!Object.prototype.hasOwnProperty.call(status.code, msg)) {
+    throw new Error('invalid status message: "' + message + '"')
+  }
+
+  return status.code[msg]
+}
+
+/**
+ * Get the status message for given code.
+ * @private
+ */
+
+function getStatusMessage (code) {
+  if (!Object.prototype.hasOwnProperty.call(status.message, code)) {
+    throw new Error('invalid status code: ' + code)
+  }
+
+  return status.message[code]
+}
+
+/**
+ * Get the status code.
+ *
+ * Given a number, this will throw if it is not a known status
+ * code, otherwise the code will be returned. Given a string,
+ * the string will be parsed for a number and return the code
+ * if valid, otherwise will lookup the code assuming this is
+ * the status message.
+ *
+ * @param {string|number} code
+ * @returns {number}
+ * @public
+ */
+
+function status (code) {
+  if (typeof code === 'number') {
+    return getStatusMessage(code)
+  }
+
+  if (typeof code !== 'string') {
+    throw new TypeError('code must be a number or string')
+  }
+
+  // '403'
+  var n = parseInt(code, 10)
+  if (!isNaN(n)) {
+    return getStatusMessage(n)
+  }
+
+  return getStatusCode(code)
+}
diff --git a/backend/node_modules/http-errors/node_modules/statuses/package.json b/backend/node_modules/http-errors/node_modules/statuses/package.json
new file mode 100644
index 0000000..8c3e719
--- /dev/null
+++ b/backend/node_modules/http-errors/node_modules/statuses/package.json
@@ -0,0 +1,49 @@
+{
+  "name": "statuses",
+  "description": "HTTP status utility",
+  "version": "2.0.1",
+  "contributors": [
+    "Douglas Christopher Wilson <doug@somethingdoug.com>",
+    "Jonathan Ong <me@jongleberry.com> (http://jongleberry.com)"
+  ],
+  "repository": "jshttp/statuses",
+  "license": "MIT",
+  "keywords": [
+    "http",
+    "status",
+    "code"
+  ],
+  "files": [
+    "HISTORY.md",
+    "index.js",
+    "codes.json",
+    "LICENSE"
+  ],
+  "devDependencies": {
+    "csv-parse": "4.14.2",
+    "eslint": "7.17.0",
+    "eslint-config-standard": "14.1.1",
+    "eslint-plugin-import": "2.22.1",
+    "eslint-plugin-markdown": "1.0.2",
+    "eslint-plugin-node": "11.1.0",
+    "eslint-plugin-promise": "4.2.1",
+    "eslint-plugin-standard": "4.1.0",
+    "mocha": "8.2.1",
+    "nyc": "15.1.0",
+    "raw-body": "2.4.1",
+    "stream-to-array": "2.3.0"
+  },
+  "engines": {
+    "node": ">= 0.8"
+  },
+  "scripts": {
+    "build": "node scripts/build.js",
+    "fetch": "node scripts/fetch-apache.js && node scripts/fetch-iana.js && node scripts/fetch-nginx.js && node scripts/fetch-node.js",
+    "lint": "eslint --plugin markdown --ext js,md .",
+    "test": "mocha --reporter spec --check-leaks --bail test/",
+    "test-ci": "nyc --reporter=lcov --reporter=text npm test",
+    "test-cov": "nyc --reporter=html --reporter=text npm test",
+    "update": "npm run fetch && npm run build",
+    "version": "node scripts/version-history.js && git add HISTORY.md"
+  }
+}
diff --git a/backend/node_modules/http-errors/package.json b/backend/node_modules/http-errors/package.json
new file mode 100644
index 0000000..4cb6d7e
--- /dev/null
+++ b/backend/node_modules/http-errors/package.json
@@ -0,0 +1,50 @@
+{
+  "name": "http-errors",
+  "description": "Create HTTP error objects",
+  "version": "2.0.0",
+  "author": "Jonathan Ong <me@jongleberry.com> (http://jongleberry.com)",
+  "contributors": [
+    "Alan Plum <me@pluma.io>",
+    "Douglas Christopher Wilson <doug@somethingdoug.com>"
+  ],
+  "license": "MIT",
+  "repository": "jshttp/http-errors",
+  "dependencies": {
+    "depd": "2.0.0",
+    "inherits": "2.0.4",
+    "setprototypeof": "1.2.0",
+    "statuses": "2.0.1",
+    "toidentifier": "1.0.1"
+  },
+  "devDependencies": {
+    "eslint": "7.32.0",
+    "eslint-config-standard": "14.1.1",
+    "eslint-plugin-import": "2.25.3",
+    "eslint-plugin-markdown": "2.2.1",
+    "eslint-plugin-node": "11.1.0",
+    "eslint-plugin-promise": "5.2.0",
+    "eslint-plugin-standard": "4.1.0",
+    "mocha": "9.1.3",
+    "nyc": "15.1.0"
+  },
+  "engines": {
+    "node": ">= 0.8"
+  },
+  "scripts": {
+    "lint": "eslint . && node ./scripts/lint-readme-list.js",
+    "test": "mocha --reporter spec --bail",
+    "test-ci": "nyc --reporter=lcov --reporter=text npm test",
+    "test-cov": "nyc --reporter=html --reporter=text npm test",
+    "version": "node scripts/version-history.js && git add HISTORY.md"
+  },
+  "keywords": [
+    "http",
+    "error"
+  ],
+  "files": [
+    "index.js",
+    "HISTORY.md",
+    "LICENSE",
+    "README.md"
+  ]
+}
diff --git a/backend/node_modules/iconv-lite/.github/dependabot.yml b/backend/node_modules/iconv-lite/.github/dependabot.yml
new file mode 100644
index 0000000..e4a0e0a
--- /dev/null
+++ b/backend/node_modules/iconv-lite/.github/dependabot.yml
@@ -0,0 +1,11 @@
+# Please see the documentation for all configuration options:
+# https://help.github.com/github/administering-a-repository/configuration-options-for-dependency-updates
+
+version: 2
+updates:
+  - package-ecosystem: "npm"
+    directory: "/"
+    schedule:
+      interval: "daily"
+    allow:
+      - dependency-type: production
diff --git a/backend/node_modules/iconv-lite/.idea/codeStyles/Project.xml b/backend/node_modules/iconv-lite/.idea/codeStyles/Project.xml
new file mode 100644
index 0000000..3f2688c
--- /dev/null
+++ b/backend/node_modules/iconv-lite/.idea/codeStyles/Project.xml
@@ -0,0 +1,47 @@
+<component name="ProjectCodeStyleConfiguration">
+  <code_scheme name="Project" version="173">
+    <HTMLCodeStyleSettings>
+      <option name="HTML_SPACE_INSIDE_EMPTY_TAG" value="true" />
+      <option name="HTML_ENFORCE_QUOTES" value="true" />
+    </HTMLCodeStyleSettings>
+    <JSCodeStyleSettings version="0">
+      <option name="FORCE_SEMICOLON_STYLE" value="true" />
+      <option name="SPACE_BEFORE_FUNCTION_LEFT_PARENTH" value="false" />
+      <option name="FORCE_QUOTE_STYlE" value="true" />
+      <option name="ENFORCE_TRAILING_COMMA" value="Remove" />
+      <option name="SPACES_WITHIN_OBJECT_LITERAL_BRACES" value="true" />
+      <option name="SPACES_WITHIN_IMPORTS" value="true" />
+    </JSCodeStyleSettings>
+    <TypeScriptCodeStyleSettings version="0">
+      <option name="FORCE_SEMICOLON_STYLE" value="true" />
+      <option name="SPACE_BEFORE_FUNCTION_LEFT_PARENTH" value="false" />
+      <option name="FORCE_QUOTE_STYlE" value="true" />
+      <option name="ENFORCE_TRAILING_COMMA" value="Remove" />
+      <option name="SPACES_WITHIN_OBJECT_LITERAL_BRACES" value="true" />
+      <option name="SPACES_WITHIN_IMPORTS" value="true" />
+    </TypeScriptCodeStyleSettings>
+    <VueCodeStyleSettings>
+      <option name="INTERPOLATION_NEW_LINE_AFTER_START_DELIMITER" value="false" />
+      <option name="INTERPOLATION_NEW_LINE_BEFORE_END_DELIMITER" value="false" />
+    </VueCodeStyleSettings>
+    <codeStyleSettings language="HTML">
+      <option name="SOFT_MARGINS" value="100" />
+      <indentOptions>
+        <option name="CONTINUATION_INDENT_SIZE" value="4" />
+      </indentOptions>
+    </codeStyleSettings>
+    <codeStyleSettings language="JavaScript">
+      <option name="SOFT_MARGINS" value="100" />
+    </codeStyleSettings>
+    <codeStyleSettings language="TypeScript">
+      <option name="SOFT_MARGINS" value="100" />
+    </codeStyleSettings>
+    <codeStyleSettings language="Vue">
+      <option name="SOFT_MARGINS" value="100" />
+      <indentOptions>
+        <option name="INDENT_SIZE" value="4" />
+        <option name="TAB_SIZE" value="4" />
+      </indentOptions>
+    </codeStyleSettings>
+  </code_scheme>
+</component>
\ No newline at end of file
diff --git a/backend/node_modules/iconv-lite/.idea/codeStyles/codeStyleConfig.xml b/backend/node_modules/iconv-lite/.idea/codeStyles/codeStyleConfig.xml
new file mode 100644
index 0000000..79ee123
--- /dev/null
+++ b/backend/node_modules/iconv-lite/.idea/codeStyles/codeStyleConfig.xml
@@ -0,0 +1,5 @@
+<component name="ProjectCodeStyleConfiguration">
+  <state>
+    <option name="USE_PER_PROJECT_SETTINGS" value="true" />
+  </state>
+</component>
\ No newline at end of file
diff --git a/backend/node_modules/iconv-lite/.idea/iconv-lite.iml b/backend/node_modules/iconv-lite/.idea/iconv-lite.iml
new file mode 100644
index 0000000..0c8867d
--- /dev/null
+++ b/backend/node_modules/iconv-lite/.idea/iconv-lite.iml
@@ -0,0 +1,12 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<module type="WEB_MODULE" version="4">
+  <component name="NewModuleRootManager">
+    <content url="file://$MODULE_DIR$">
+      <excludeFolder url="file://$MODULE_DIR$/temp" />
+      <excludeFolder url="file://$MODULE_DIR$/.tmp" />
+      <excludeFolder url="file://$MODULE_DIR$/tmp" />
+    </content>
+    <orderEntry type="inheritedJdk" />
+    <orderEntry type="sourceFolder" forTests="false" />
+  </component>
+</module>
\ No newline at end of file
diff --git a/backend/node_modules/iconv-lite/.idea/inspectionProfiles/Project_Default.xml b/backend/node_modules/iconv-lite/.idea/inspectionProfiles/Project_Default.xml
new file mode 100644
index 0000000..03d9549
--- /dev/null
+++ b/backend/node_modules/iconv-lite/.idea/inspectionProfiles/Project_Default.xml
@@ -0,0 +1,6 @@
+<component name="InspectionProjectProfileManager">
+  <profile version="1.0">
+    <option name="myName" value="Project Default" />
+    <inspection_tool class="Eslint" enabled="true" level="WARNING" enabled_by_default="true" />
+  </profile>
+</component>
\ No newline at end of file
diff --git a/backend/node_modules/iconv-lite/.idea/modules.xml b/backend/node_modules/iconv-lite/.idea/modules.xml
new file mode 100644
index 0000000..5d24f2e
--- /dev/null
+++ b/backend/node_modules/iconv-lite/.idea/modules.xml
@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="ProjectModuleManager">
+    <modules>
+      <module fileurl="file://$PROJECT_DIR$/.idea/iconv-lite.iml" filepath="$PROJECT_DIR$/.idea/iconv-lite.iml" />
+    </modules>
+  </component>
+</project>
\ No newline at end of file
diff --git a/backend/node_modules/iconv-lite/.idea/vcs.xml b/backend/node_modules/iconv-lite/.idea/vcs.xml
new file mode 100644
index 0000000..94a25f7
--- /dev/null
+++ b/backend/node_modules/iconv-lite/.idea/vcs.xml
@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="VcsDirectoryMappings">
+    <mapping directory="$PROJECT_DIR$" vcs="Git" />
+  </component>
+</project>
\ No newline at end of file
diff --git a/backend/node_modules/iconv-lite/Changelog.md b/backend/node_modules/iconv-lite/Changelog.md
new file mode 100644
index 0000000..464549b
--- /dev/null
+++ b/backend/node_modules/iconv-lite/Changelog.md
@@ -0,0 +1,212 @@
+## 0.6.3 / 2021-05-23
+  * Fix HKSCS encoding to prefer Big5 codes if both Big5 and HKSCS codes are possible (#264)
+
+
+## 0.6.2 / 2020-07-08
+  * Support Uint8Array-s decoding without conversion to Buffers, plus fix an edge case.
+
+
+## 0.6.1 / 2020-06-28
+  * Support Uint8Array-s directly when decoding (#246, by @gyzerok)
+  * Unify package.json version ranges to be strictly semver-compatible (#241)
+  * Fix minor issue in UTF-32 decoder's endianness detection code.
+
+
+## 0.6.0 / 2020-06-08
+  * Updated 'gb18030' encoding to :2005 edition (see https://github.com/whatwg/encoding/issues/22).
+  * Removed `iconv.extendNodeEncodings()` mechanism. It was deprecated 5 years ago and didn't work 
+    in recent Node versions.
+  * Reworked Streaming API behavior in browser environments to fix #204. Streaming API will be 
+    excluded by default in browser packs, saving ~100Kb bundle size, unless enabled explicitly using 
+    `iconv.enableStreamingAPI(require('stream'))`.
+  * Updates to development environment & tests:
+    * Added ./test/webpack private package to test complex new use cases that need custom environment. 
+      It's tested as a separate job in Travis CI.
+    * Updated generation code for the new EUC-KR index file format from Encoding Standard.
+    * Removed Buffer() constructor in tests (#197 by @gabrielschulhof).
+
+
+## 0.5.2 / 2020-06-08
+  * Added `iconv.getEncoder()` and `iconv.getDecoder()` methods to typescript definitions (#229).
+  * Fixed semver version to 6.1.2 to support Node 8.x (by @tanandara).
+  * Capped iconv version to 2.x as 3.x has dropped support for older Node versions.
+  * Switched from instanbul to c8 for code coverage.
+
+
+## 0.5.1 / 2020-01-18
+
+  * Added cp720 encoding (#221, by @kr-deps)
+  * (minor) Changed Changelog.md formatting to use h2. 
+
+
+## 0.5.0 / 2019-06-26
+
+  * Added UTF-32 encoding, both little-endian and big-endian variants (UTF-32LE, UTF32-BE). If endianness
+    is not provided for decoding, it's deduced automatically from the stream using a heuristic similar to
+    what we use in UTF-16. (great work in #216 by @kshetline)
+  * Several minor updates to README (#217 by @oldj, plus some more)
+  * Added Node versions 10 and 12 to Travis test harness.
+
+
+## 0.4.24 / 2018-08-22
+
+  * Added MIK encoding (#196, by @Ivan-Kalatchev)
+
+
+## 0.4.23 / 2018-05-07
+
+  * Fix deprecation warning in Node v10 due to the last usage of `new Buffer` (#185, by @felixbuenemann)
+  * Switched from NodeBuffer to Buffer in typings (#155 by @felixfbecker, #186 by @larssn)
+
+
+## 0.4.22 / 2018-05-05
+
+  * Use older semver style for dependencies to be compatible with Node version 0.10 (#182, by @dougwilson)
+  * Fix tests to accomodate fixes in Node v10 (#182, by @dougwilson)
+
+
+## 0.4.21 / 2018-04-06
+
+  * Fix encoding canonicalization (#156)
+  * Fix the paths in the "browser" field in package.json (#174 by @LMLB)
+  * Removed "contributors" section in package.json - see Git history instead.
+
+
+## 0.4.20 / 2018-04-06
+
+  * Updated `new Buffer()` usages with recommended replacements as it's being deprecated in Node v10 (#176, #178 by @ChALkeR)
+
+
+## 0.4.19 / 2017-09-09
+
+  * Fixed iso8859-1 codec regression in handling untranslatable characters (#162, caused by #147)
+  * Re-generated windows1255 codec, because it was updated in iconv project
+  * Fixed grammar in error message when iconv-lite is loaded with encoding other than utf8
+
+
+## 0.4.18 / 2017-06-13
+
+  * Fixed CESU-8 regression in Node v8.
+
+
+## 0.4.17 / 2017-04-22
+
+ * Updated typescript definition file to support Angular 2 AoT mode (#153 by @larssn)
+
+
+## 0.4.16 / 2017-04-22
+
+ * Added support for React Native (#150)
+ * Changed iso8859-1 encoding to usine internal 'binary' encoding, as it's the same thing (#147 by @mscdex)
+ * Fixed typo in Readme (#138 by @jiangzhuo)
+ * Fixed build for Node v6.10+ by making correct version comparison
+ * Added a warning if iconv-lite is loaded not as utf-8 (see #142)
+
+
+## 0.4.15 / 2016-11-21
+
+ * Fixed typescript type definition (#137)
+
+
+## 0.4.14 / 2016-11-20
+
+ * Preparation for v1.0
+ * Added Node v6 and latest Node versions to Travis CI test rig
+ * Deprecated Node v0.8 support
+ * Typescript typings (@larssn)
+ * Fix encoding of Euro character in GB 18030 (inspired by @lygstate)
+ * Add ms prefix to dbcs windows encodings (@rokoroku)
+
+
+## 0.4.13 / 2015-10-01
+
+ * Fix silly mistake in deprecation notice.
+
+
+## 0.4.12 / 2015-09-26
+
+ * Node v4 support:
+   * Added CESU-8 decoding (#106)
+   * Added deprecation notice for `extendNodeEncodings`
+   * Added Travis tests for Node v4 and io.js latest (#105 by @Mithgol)
+
+
+## 0.4.11 / 2015-07-03
+
+ * Added CESU-8 encoding.
+
+
+## 0.4.10 / 2015-05-26
+
+ * Changed UTF-16 endianness heuristic to take into account any ASCII chars, not
+   just spaces. This should minimize the importance of "default" endianness.
+
+
+## 0.4.9 / 2015-05-24
+
+ * Streamlined BOM handling: strip BOM by default, add BOM when encoding if 
+   addBOM: true. Added docs to Readme.
+ * UTF16 now uses UTF16-LE by default.
+ * Fixed minor issue with big5 encoding.
+ * Added io.js testing on Travis; updated node-iconv version to test against.
+   Now we just skip testing SBCS encodings that node-iconv doesn't support.
+ * (internal refactoring) Updated codec interface to use classes.
+ * Use strict mode in all files.
+
+
+## 0.4.8 / 2015-04-14
+ 
+ * added alias UNICODE-1-1-UTF-7 for UTF-7 encoding (#94)
+
+
+## 0.4.7 / 2015-02-05
+
+ * stop official support of Node.js v0.8. Should still work, but no guarantees.
+   reason: Packages needed for testing are hard to get on Travis CI.
+ * work in environment where Object.prototype is monkey patched with enumerable 
+   props (#89).
+
+
+## 0.4.6 / 2015-01-12
+ 
+ * fix rare aliases of single-byte encodings (thanks @mscdex)
+ * double the timeout for dbcs tests to make them less flaky on travis
+
+
+## 0.4.5 / 2014-11-20
+
+ * fix windows-31j and x-sjis encoding support (@nleush)
+ * minor fix: undefined variable reference when internal error happens
+
+
+## 0.4.4 / 2014-07-16
+
+ * added encodings UTF-7 (RFC2152) and UTF-7-IMAP (RFC3501 Section 5.1.3)
+ * fixed streaming base64 encoding
+
+
+## 0.4.3 / 2014-06-14
+
+ * added encodings UTF-16BE and UTF-16 with BOM
+
+
+## 0.4.2 / 2014-06-12
+
+ * don't throw exception if `extendNodeEncodings()` is called more than once
+
+
+## 0.4.1 / 2014-06-11
+
+ * codepage 808 added
+
+
+## 0.4.0 / 2014-06-10
+
+ * code is rewritten from scratch
+ * all widespread encodings are supported
+ * streaming interface added
+ * browserify compatibility added
+ * (optional) extend core primitive encodings to make usage even simpler
+ * moved from vows to mocha as the testing framework
+
+
diff --git a/backend/node_modules/iconv-lite/LICENSE b/backend/node_modules/iconv-lite/LICENSE
new file mode 100644
index 0000000..d518d83
--- /dev/null
+++ b/backend/node_modules/iconv-lite/LICENSE
@@ -0,0 +1,21 @@
+Copyright (c) 2011 Alexander Shtuchkin
+
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of this software and associated documentation files (the
+"Software"), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sublicense, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to
+the following conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+
diff --git a/backend/node_modules/iconv-lite/README.md b/backend/node_modules/iconv-lite/README.md
new file mode 100644
index 0000000..3c97f87
--- /dev/null
+++ b/backend/node_modules/iconv-lite/README.md
@@ -0,0 +1,130 @@
+## iconv-lite: Pure JS character encoding conversion
+
+ * No need for native code compilation. Quick to install, works on Windows and in sandboxed environments like [Cloud9](http://c9.io).
+ * Used in popular projects like [Express.js (body_parser)](https://github.com/expressjs/body-parser), 
+   [Grunt](http://gruntjs.com/), [Nodemailer](http://www.nodemailer.com/), [Yeoman](http://yeoman.io/) and others.
+ * Faster than [node-iconv](https://github.com/bnoordhuis/node-iconv) (see below for performance comparison).
+ * Intuitive encode/decode API, including Streaming support.
+ * In-browser usage via [browserify](https://github.com/substack/node-browserify) or [webpack](https://webpack.js.org/) (~180kb gzip compressed with Buffer shim included).
+ * Typescript [type definition file](https://github.com/ashtuchkin/iconv-lite/blob/master/lib/index.d.ts) included.
+ * React Native is supported (need to install `stream` module to enable Streaming API).
+ * License: MIT.
+
+[![NPM Stats](https://nodei.co/npm/iconv-lite.png)](https://npmjs.org/package/iconv-lite/)  
+[![Build Status](https://travis-ci.org/ashtuchkin/iconv-lite.svg?branch=master)](https://travis-ci.org/ashtuchkin/iconv-lite)
+[![npm](https://img.shields.io/npm/v/iconv-lite.svg)](https://npmjs.org/package/iconv-lite/)
+[![npm downloads](https://img.shields.io/npm/dm/iconv-lite.svg)](https://npmjs.org/package/iconv-lite/)
+[![npm bundle size](https://img.shields.io/bundlephobia/min/iconv-lite.svg)](https://npmjs.org/package/iconv-lite/)
+
+## Usage
+### Basic API
+```javascript
+var iconv = require('iconv-lite');
+
+// Convert from an encoded buffer to a js string.
+str = iconv.decode(Buffer.from([0x68, 0x65, 0x6c, 0x6c, 0x6f]), 'win1251');
+
+// Convert from a js string to an encoded buffer.
+buf = iconv.encode("Sample input string", 'win1251');
+
+// Check if encoding is supported
+iconv.encodingExists("us-ascii")
+```
+
+### Streaming API
+```javascript
+
+// Decode stream (from binary data stream to js strings)
+http.createServer(function(req, res) {
+    var converterStream = iconv.decodeStream('win1251');
+    req.pipe(converterStream);
+
+    converterStream.on('data', function(str) {
+        console.log(str); // Do something with decoded strings, chunk-by-chunk.
+    });
+});
+
+// Convert encoding streaming example
+fs.createReadStream('file-in-win1251.txt')
+    .pipe(iconv.decodeStream('win1251'))
+    .pipe(iconv.encodeStream('ucs2'))
+    .pipe(fs.createWriteStream('file-in-ucs2.txt'));
+
+// Sugar: all encode/decode streams have .collect(cb) method to accumulate data.
+http.createServer(function(req, res) {
+    req.pipe(iconv.decodeStream('win1251')).collect(function(err, body) {
+        assert(typeof body == 'string');
+        console.log(body); // full request body string
+    });
+});
+```
+
+## Supported encodings
+
+ *  All node.js native encodings: utf8, ucs2 / utf16-le, ascii, binary, base64, hex.
+ *  Additional unicode encodings: utf16, utf16-be, utf-7, utf-7-imap, utf32, utf32-le, and utf32-be.
+ *  All widespread singlebyte encodings: Windows 125x family, ISO-8859 family, 
+    IBM/DOS codepages, Macintosh family, KOI8 family, all others supported by iconv library. 
+    Aliases like 'latin1', 'us-ascii' also supported.
+ *  All widespread multibyte encodings: CP932, CP936, CP949, CP950, GB2312, GBK, GB18030, Big5, Shift_JIS, EUC-JP.
+
+See [all supported encodings on wiki](https://github.com/ashtuchkin/iconv-lite/wiki/Supported-Encodings).
+
+Most singlebyte encodings are generated automatically from [node-iconv](https://github.com/bnoordhuis/node-iconv). Thank you Ben Noordhuis and libiconv authors!
+
+Multibyte encodings are generated from [Unicode.org mappings](http://www.unicode.org/Public/MAPPINGS/) and [WHATWG Encoding Standard mappings](http://encoding.spec.whatwg.org/). Thank you, respective authors!
+
+
+## Encoding/decoding speed
+
+Comparison with node-iconv module (1000x256kb, on MacBook Pro, Core i5/2.6 GHz, Node v0.12.0). 
+Note: your results may vary, so please always check on your hardware.
+
+    operation             iconv@2.1.4   iconv-lite@0.4.7
+    ----------------------------------------------------------
+    encode('win1251')     ~96 Mb/s      ~320 Mb/s
+    decode('win1251')     ~95 Mb/s      ~246 Mb/s
+
+## BOM handling
+
+ * Decoding: BOM is stripped by default, unless overridden by passing `stripBOM: false` in options
+   (f.ex. `iconv.decode(buf, enc, {stripBOM: false})`).
+   A callback might also be given as a `stripBOM` parameter - it'll be called if BOM character was actually found.
+ * If you want to detect UTF-8 BOM when decoding other encodings, use [node-autodetect-decoder-stream](https://github.com/danielgindi/node-autodetect-decoder-stream) module.
+ * Encoding: No BOM added, unless overridden by `addBOM: true` option.
+
+## UTF-16 Encodings
+
+This library supports UTF-16LE, UTF-16BE and UTF-16 encodings. First two are straightforward, but UTF-16 is trying to be
+smart about endianness in the following ways:
+ * Decoding: uses BOM and 'spaces heuristic' to determine input endianness. Default is UTF-16LE, but can be 
+   overridden with `defaultEncoding: 'utf-16be'` option. Strips BOM unless `stripBOM: false`.
+ * Encoding: uses UTF-16LE and writes BOM by default. Use `addBOM: false` to override.
+
+## UTF-32 Encodings
+
+This library supports UTF-32LE, UTF-32BE and UTF-32 encodings. Like the UTF-16 encoding above, UTF-32 defaults to UTF-32LE, but uses BOM and 'spaces heuristics' to determine input endianness. 
+ * The default of UTF-32LE can be overridden with the `defaultEncoding: 'utf-32be'` option. Strips BOM unless `stripBOM: false`.
+ * Encoding: uses UTF-32LE and writes BOM by default. Use `addBOM: false` to override. (`defaultEncoding: 'utf-32be'` can also be used here to change encoding.)
+
+## Other notes
+
+When decoding, be sure to supply a Buffer to decode() method, otherwise [bad things usually happen](https://github.com/ashtuchkin/iconv-lite/wiki/Use-Buffers-when-decoding).  
+Untranslatable characters are set to � or ?. No transliteration is currently supported.  
+Node versions 0.10.31 and 0.11.13 are buggy, don't use them (see #65, #77).  
+
+## Testing
+
+```bash
+$ git clone git@github.com:ashtuchkin/iconv-lite.git
+$ cd iconv-lite
+$ npm install
+$ npm test
+    
+$ # To view performance:
+$ node test/performance.js
+
+$ # To view test coverage:
+$ npm run coverage
+$ open coverage/lcov-report/index.html
+```
diff --git a/backend/node_modules/iconv-lite/encodings/dbcs-codec.js b/backend/node_modules/iconv-lite/encodings/dbcs-codec.js
new file mode 100644
index 0000000..fa83917
--- /dev/null
+++ b/backend/node_modules/iconv-lite/encodings/dbcs-codec.js
@@ -0,0 +1,597 @@
+"use strict";
+var Buffer = require("safer-buffer").Buffer;
+
+// Multibyte codec. In this scheme, a character is represented by 1 or more bytes.
+// Our codec supports UTF-16 surrogates, extensions for GB18030 and unicode sequences.
+// To save memory and loading time, we read table files only when requested.
+
+exports._dbcs = DBCSCodec;
+
+var UNASSIGNED = -1,
+    GB18030_CODE = -2,
+    SEQ_START  = -10,
+    NODE_START = -1000,
+    UNASSIGNED_NODE = new Array(0x100),
+    DEF_CHAR = -1;
+
+for (var i = 0; i < 0x100; i++)
+    UNASSIGNED_NODE[i] = UNASSIGNED;
+
+
+// Class DBCSCodec reads and initializes mapping tables.
+function DBCSCodec(codecOptions, iconv) {
+    this.encodingName = codecOptions.encodingName;
+    if (!codecOptions)
+        throw new Error("DBCS codec is called without the data.")
+    if (!codecOptions.table)
+        throw new Error("Encoding '" + this.encodingName + "' has no data.");
+
+    // Load tables.
+    var mappingTable = codecOptions.table();
+
+
+    // Decode tables: MBCS -> Unicode.
+
+    // decodeTables is a trie, encoded as an array of arrays of integers. Internal arrays are trie nodes and all have len = 256.
+    // Trie root is decodeTables[0].
+    // Values: >=  0 -> unicode character code. can be > 0xFFFF
+    //         == UNASSIGNED -> unknown/unassigned sequence.
+    //         == GB18030_CODE -> this is the end of a GB18030 4-byte sequence.
+    //         <= NODE_START -> index of the next node in our trie to process next byte.
+    //         <= SEQ_START  -> index of the start of a character code sequence, in decodeTableSeq.
+    this.decodeTables = [];
+    this.decodeTables[0] = UNASSIGNED_NODE.slice(0); // Create root node.
+
+    // Sometimes a MBCS char corresponds to a sequence of unicode chars. We store them as arrays of integers here. 
+    this.decodeTableSeq = [];
+
+    // Actual mapping tables consist of chunks. Use them to fill up decode tables.
+    for (var i = 0; i < mappingTable.length; i++)
+        this._addDecodeChunk(mappingTable[i]);
+
+    // Load & create GB18030 tables when needed.
+    if (typeof codecOptions.gb18030 === 'function') {
+        this.gb18030 = codecOptions.gb18030(); // Load GB18030 ranges.
+
+        // Add GB18030 common decode nodes.
+        var commonThirdByteNodeIdx = this.decodeTables.length;
+        this.decodeTables.push(UNASSIGNED_NODE.slice(0));
+
+        var commonFourthByteNodeIdx = this.decodeTables.length;
+        this.decodeTables.push(UNASSIGNED_NODE.slice(0));
+
+        // Fill out the tree
+        var firstByteNode = this.decodeTables[0];
+        for (var i = 0x81; i <= 0xFE; i++) {
+            var secondByteNode = this.decodeTables[NODE_START - firstByteNode[i]];
+            for (var j = 0x30; j <= 0x39; j++) {
+                if (secondByteNode[j] === UNASSIGNED) {
+                    secondByteNode[j] = NODE_START - commonThirdByteNodeIdx;
+                } else if (secondByteNode[j] > NODE_START) {
+                    throw new Error("gb18030 decode tables conflict at byte 2");
+                }
+
+                var thirdByteNode = this.decodeTables[NODE_START - secondByteNode[j]];
+                for (var k = 0x81; k <= 0xFE; k++) {
+                    if (thirdByteNode[k] === UNASSIGNED) {
+                        thirdByteNode[k] = NODE_START - commonFourthByteNodeIdx;
+                    } else if (thirdByteNode[k] === NODE_START - commonFourthByteNodeIdx) {
+                        continue;
+                    } else if (thirdByteNode[k] > NODE_START) {
+                        throw new Error("gb18030 decode tables conflict at byte 3");
+                    }
+
+                    var fourthByteNode = this.decodeTables[NODE_START - thirdByteNode[k]];
+                    for (var l = 0x30; l <= 0x39; l++) {
+                        if (fourthByteNode[l] === UNASSIGNED)
+                            fourthByteNode[l] = GB18030_CODE;
+                    }
+                }
+            }
+        }
+    }
+
+    this.defaultCharUnicode = iconv.defaultCharUnicode;
+
+    
+    // Encode tables: Unicode -> DBCS.
+
+    // `encodeTable` is array mapping from unicode char to encoded char. All its values are integers for performance.
+    // Because it can be sparse, it is represented as array of buckets by 256 chars each. Bucket can be null.
+    // Values: >=  0 -> it is a normal char. Write the value (if <=256 then 1 byte, if <=65536 then 2 bytes, etc.).
+    //         == UNASSIGNED -> no conversion found. Output a default char.
+    //         <= SEQ_START  -> it's an index in encodeTableSeq, see below. The character starts a sequence.
+    this.encodeTable = [];
+    
+    // `encodeTableSeq` is used when a sequence of unicode characters is encoded as a single code. We use a tree of
+    // objects where keys correspond to characters in sequence and leafs are the encoded dbcs values. A special DEF_CHAR key
+    // means end of sequence (needed when one sequence is a strict subsequence of another).
+    // Objects are kept separately from encodeTable to increase performance.
+    this.encodeTableSeq = [];
+
+    // Some chars can be decoded, but need not be encoded.
+    var skipEncodeChars = {};
+    if (codecOptions.encodeSkipVals)
+        for (var i = 0; i < codecOptions.encodeSkipVals.length; i++) {
+            var val = codecOptions.encodeSkipVals[i];
+            if (typeof val === 'number')
+                skipEncodeChars[val] = true;
+            else
+                for (var j = val.from; j <= val.to; j++)
+                    skipEncodeChars[j] = true;
+        }
+        
+    // Use decode trie to recursively fill out encode tables.
+    this._fillEncodeTable(0, 0, skipEncodeChars);
+
+    // Add more encoding pairs when needed.
+    if (codecOptions.encodeAdd) {
+        for (var uChar in codecOptions.encodeAdd)
+            if (Object.prototype.hasOwnProperty.call(codecOptions.encodeAdd, uChar))
+                this._setEncodeChar(uChar.charCodeAt(0), codecOptions.encodeAdd[uChar]);
+    }
+
+    this.defCharSB  = this.encodeTable[0][iconv.defaultCharSingleByte.charCodeAt(0)];
+    if (this.defCharSB === UNASSIGNED) this.defCharSB = this.encodeTable[0]['?'];
+    if (this.defCharSB === UNASSIGNED) this.defCharSB = "?".charCodeAt(0);
+}
+
+DBCSCodec.prototype.encoder = DBCSEncoder;
+DBCSCodec.prototype.decoder = DBCSDecoder;
+
+// Decoder helpers
+DBCSCodec.prototype._getDecodeTrieNode = function(addr) {
+    var bytes = [];
+    for (; addr > 0; addr >>>= 8)
+        bytes.push(addr & 0xFF);
+    if (bytes.length == 0)
+        bytes.push(0);
+
+    var node = this.decodeTables[0];
+    for (var i = bytes.length-1; i > 0; i--) { // Traverse nodes deeper into the trie.
+        var val = node[bytes[i]];
+
+        if (val == UNASSIGNED) { // Create new node.
+            node[bytes[i]] = NODE_START - this.decodeTables.length;
+            this.decodeTables.push(node = UNASSIGNED_NODE.slice(0));
+        }
+        else if (val <= NODE_START) { // Existing node.
+            node = this.decodeTables[NODE_START - val];
+        }
+        else
+            throw new Error("Overwrite byte in " + this.encodingName + ", addr: " + addr.toString(16));
+    }
+    return node;
+}
+
+
+DBCSCodec.prototype._addDecodeChunk = function(chunk) {
+    // First element of chunk is the hex mbcs code where we start.
+    var curAddr = parseInt(chunk[0], 16);
+
+    // Choose the decoding node where we'll write our chars.
+    var writeTable = this._getDecodeTrieNode(curAddr);
+    curAddr = curAddr & 0xFF;
+
+    // Write all other elements of the chunk to the table.
+    for (var k = 1; k < chunk.length; k++) {
+        var part = chunk[k];
+        if (typeof part === "string") { // String, write as-is.
+            for (var l = 0; l < part.length;) {
+                var code = part.charCodeAt(l++);
+                if (0xD800 <= code && code < 0xDC00) { // Decode surrogate
+                    var codeTrail = part.charCodeAt(l++);
+                    if (0xDC00 <= codeTrail && codeTrail < 0xE000)
+                        writeTable[curAddr++] = 0x10000 + (code - 0xD800) * 0x400 + (codeTrail - 0xDC00);
+                    else
+                        throw new Error("Incorrect surrogate pair in "  + this.encodingName + " at chunk " + chunk[0]);
+                }
+                else if (0x0FF0 < code && code <= 0x0FFF) { // Character sequence (our own encoding used)
+                    var len = 0xFFF - code + 2;
+                    var seq = [];
+                    for (var m = 0; m < len; m++)
+                        seq.push(part.charCodeAt(l++)); // Simple variation: don't support surrogates or subsequences in seq.
+
+                    writeTable[curAddr++] = SEQ_START - this.decodeTableSeq.length;
+                    this.decodeTableSeq.push(seq);
+                }
+                else
+                    writeTable[curAddr++] = code; // Basic char
+            }
+        } 
+        else if (typeof part === "number") { // Integer, meaning increasing sequence starting with prev character.
+            var charCode = writeTable[curAddr - 1] + 1;
+            for (var l = 0; l < part; l++)
+                writeTable[curAddr++] = charCode++;
+        }
+        else
+            throw new Error("Incorrect type '" + typeof part + "' given in "  + this.encodingName + " at chunk " + chunk[0]);
+    }
+    if (curAddr > 0xFF)
+        throw new Error("Incorrect chunk in "  + this.encodingName + " at addr " + chunk[0] + ": too long" + curAddr);
+}
+
+// Encoder helpers
+DBCSCodec.prototype._getEncodeBucket = function(uCode) {
+    var high = uCode >> 8; // This could be > 0xFF because of astral characters.
+    if (this.encodeTable[high] === undefined)
+        this.encodeTable[high] = UNASSIGNED_NODE.slice(0); // Create bucket on demand.
+    return this.encodeTable[high];
+}
+
+DBCSCodec.prototype._setEncodeChar = function(uCode, dbcsCode) {
+    var bucket = this._getEncodeBucket(uCode);
+    var low = uCode & 0xFF;
+    if (bucket[low] <= SEQ_START)
+        this.encodeTableSeq[SEQ_START-bucket[low]][DEF_CHAR] = dbcsCode; // There's already a sequence, set a single-char subsequence of it.
+    else if (bucket[low] == UNASSIGNED)
+        bucket[low] = dbcsCode;
+}
+
+DBCSCodec.prototype._setEncodeSequence = function(seq, dbcsCode) {
+    
+    // Get the root of character tree according to first character of the sequence.
+    var uCode = seq[0];
+    var bucket = this._getEncodeBucket(uCode);
+    var low = uCode & 0xFF;
+
+    var node;
+    if (bucket[low] <= SEQ_START) {
+        // There's already a sequence with  - use it.
+        node = this.encodeTableSeq[SEQ_START-bucket[low]];
+    }
+    else {
+        // There was no sequence object - allocate a new one.
+        node = {};
+        if (bucket[low] !== UNASSIGNED) node[DEF_CHAR] = bucket[low]; // If a char was set before - make it a single-char subsequence.
+        bucket[low] = SEQ_START - this.encodeTableSeq.length;
+        this.encodeTableSeq.push(node);
+    }
+
+    // Traverse the character tree, allocating new nodes as needed.
+    for (var j = 1; j < seq.length-1; j++) {
+        var oldVal = node[uCode];
+        if (typeof oldVal === 'object')
+            node = oldVal;
+        else {
+            node = node[uCode] = {}
+            if (oldVal !== undefined)
+                node[DEF_CHAR] = oldVal
+        }
+    }
+
+    // Set the leaf to given dbcsCode.
+    uCode = seq[seq.length-1];
+    node[uCode] = dbcsCode;
+}
+
+DBCSCodec.prototype._fillEncodeTable = function(nodeIdx, prefix, skipEncodeChars) {
+    var node = this.decodeTables[nodeIdx];
+    var hasValues = false;
+    var subNodeEmpty = {};
+    for (var i = 0; i < 0x100; i++) {
+        var uCode = node[i];
+        var mbCode = prefix + i;
+        if (skipEncodeChars[mbCode])
+            continue;
+
+        if (uCode >= 0) {
+            this._setEncodeChar(uCode, mbCode);
+            hasValues = true;
+        } else if (uCode <= NODE_START) {
+            var subNodeIdx = NODE_START - uCode;
+            if (!subNodeEmpty[subNodeIdx]) {  // Skip empty subtrees (they are too large in gb18030).
+                var newPrefix = (mbCode << 8) >>> 0;  // NOTE: '>>> 0' keeps 32-bit num positive.
+                if (this._fillEncodeTable(subNodeIdx, newPrefix, skipEncodeChars))
+                    hasValues = true;
+                else
+                    subNodeEmpty[subNodeIdx] = true;
+            }
+        } else if (uCode <= SEQ_START) {
+            this._setEncodeSequence(this.decodeTableSeq[SEQ_START - uCode], mbCode);
+            hasValues = true;
+        }
+    }
+    return hasValues;
+}
+
+
+
+// == Encoder ==================================================================
+
+function DBCSEncoder(options, codec) {
+    // Encoder state
+    this.leadSurrogate = -1;
+    this.seqObj = undefined;
+    
+    // Static data
+    this.encodeTable = codec.encodeTable;
+    this.encodeTableSeq = codec.encodeTableSeq;
+    this.defaultCharSingleByte = codec.defCharSB;
+    this.gb18030 = codec.gb18030;
+}
+
+DBCSEncoder.prototype.write = function(str) {
+    var newBuf = Buffer.alloc(str.length * (this.gb18030 ? 4 : 3)),
+        leadSurrogate = this.leadSurrogate,
+        seqObj = this.seqObj, nextChar = -1,
+        i = 0, j = 0;
+
+    while (true) {
+        // 0. Get next character.
+        if (nextChar === -1) {
+            if (i == str.length) break;
+            var uCode = str.charCodeAt(i++);
+        }
+        else {
+            var uCode = nextChar;
+            nextChar = -1;    
+        }
+
+        // 1. Handle surrogates.
+        if (0xD800 <= uCode && uCode < 0xE000) { // Char is one of surrogates.
+            if (uCode < 0xDC00) { // We've got lead surrogate.
+                if (leadSurrogate === -1) {
+                    leadSurrogate = uCode;
+                    continue;
+                } else {
+                    leadSurrogate = uCode;
+                    // Double lead surrogate found.
+                    uCode = UNASSIGNED;
+                }
+            } else { // We've got trail surrogate.
+                if (leadSurrogate !== -1) {
+                    uCode = 0x10000 + (leadSurrogate - 0xD800) * 0x400 + (uCode - 0xDC00);
+                    leadSurrogate = -1;
+                } else {
+                    // Incomplete surrogate pair - only trail surrogate found.
+                    uCode = UNASSIGNED;
+                }
+                
+            }
+        }
+        else if (leadSurrogate !== -1) {
+            // Incomplete surrogate pair - only lead surrogate found.
+            nextChar = uCode; uCode = UNASSIGNED; // Write an error, then current char.
+            leadSurrogate = -1;
+        }
+
+        // 2. Convert uCode character.
+        var dbcsCode = UNASSIGNED;
+        if (seqObj !== undefined && uCode != UNASSIGNED) { // We are in the middle of the sequence
+            var resCode = seqObj[uCode];
+            if (typeof resCode === 'object') { // Sequence continues.
+                seqObj = resCode;
+                continue;
+
+            } else if (typeof resCode == 'number') { // Sequence finished. Write it.
+                dbcsCode = resCode;
+
+            } else if (resCode == undefined) { // Current character is not part of the sequence.
+
+                // Try default character for this sequence
+                resCode = seqObj[DEF_CHAR];
+                if (resCode !== undefined) {
+                    dbcsCode = resCode; // Found. Write it.
+                    nextChar = uCode; // Current character will be written too in the next iteration.
+
+                } else {
+                    // TODO: What if we have no default? (resCode == undefined)
+                    // Then, we should write first char of the sequence as-is and try the rest recursively.
+                    // Didn't do it for now because no encoding has this situation yet.
+                    // Currently, just skip the sequence and write current char.
+                }
+            }
+            seqObj = undefined;
+        }
+        else if (uCode >= 0) {  // Regular character
+            var subtable = this.encodeTable[uCode >> 8];
+            if (subtable !== undefined)
+                dbcsCode = subtable[uCode & 0xFF];
+            
+            if (dbcsCode <= SEQ_START) { // Sequence start
+                seqObj = this.encodeTableSeq[SEQ_START-dbcsCode];
+                continue;
+            }
+
+            if (dbcsCode == UNASSIGNED && this.gb18030) {
+                // Use GB18030 algorithm to find character(s) to write.
+                var idx = findIdx(this.gb18030.uChars, uCode);
+                if (idx != -1) {
+                    var dbcsCode = this.gb18030.gbChars[idx] + (uCode - this.gb18030.uChars[idx]);
+                    newBuf[j++] = 0x81 + Math.floor(dbcsCode / 12600); dbcsCode = dbcsCode % 12600;
+                    newBuf[j++] = 0x30 + Math.floor(dbcsCode / 1260); dbcsCode = dbcsCode % 1260;
+                    newBuf[j++] = 0x81 + Math.floor(dbcsCode / 10); dbcsCode = dbcsCode % 10;
+                    newBuf[j++] = 0x30 + dbcsCode;
+                    continue;
+                }
+            }
+        }
+
+        // 3. Write dbcsCode character.
+        if (dbcsCode === UNASSIGNED)
+            dbcsCode = this.defaultCharSingleByte;
+        
+        if (dbcsCode < 0x100) {
+            newBuf[j++] = dbcsCode;
+        }
+        else if (dbcsCode < 0x10000) {
+            newBuf[j++] = dbcsCode >> 8;   // high byte
+            newBuf[j++] = dbcsCode & 0xFF; // low byte
+        }
+        else if (dbcsCode < 0x1000000) {
+            newBuf[j++] = dbcsCode >> 16;
+            newBuf[j++] = (dbcsCode >> 8) & 0xFF;
+            newBuf[j++] = dbcsCode & 0xFF;
+        } else {
+            newBuf[j++] = dbcsCode >>> 24;
+            newBuf[j++] = (dbcsCode >>> 16) & 0xFF;
+            newBuf[j++] = (dbcsCode >>> 8) & 0xFF;
+            newBuf[j++] = dbcsCode & 0xFF;
+        }
+    }
+
+    this.seqObj = seqObj;
+    this.leadSurrogate = leadSurrogate;
+    return newBuf.slice(0, j);
+}
+
+DBCSEncoder.prototype.end = function() {
+    if (this.leadSurrogate === -1 && this.seqObj === undefined)
+        return; // All clean. Most often case.
+
+    var newBuf = Buffer.alloc(10), j = 0;
+
+    if (this.seqObj) { // We're in the sequence.
+        var dbcsCode = this.seqObj[DEF_CHAR];
+        if (dbcsCode !== undefined) { // Write beginning of the sequence.
+            if (dbcsCode < 0x100) {
+                newBuf[j++] = dbcsCode;
+            }
+            else {
+                newBuf[j++] = dbcsCode >> 8;   // high byte
+                newBuf[j++] = dbcsCode & 0xFF; // low byte
+            }
+        } else {
+            // See todo above.
+        }
+        this.seqObj = undefined;
+    }
+
+    if (this.leadSurrogate !== -1) {
+        // Incomplete surrogate pair - only lead surrogate found.
+        newBuf[j++] = this.defaultCharSingleByte;
+        this.leadSurrogate = -1;
+    }
+    
+    return newBuf.slice(0, j);
+}
+
+// Export for testing
+DBCSEncoder.prototype.findIdx = findIdx;
+
+
+// == Decoder ==================================================================
+
+function DBCSDecoder(options, codec) {
+    // Decoder state
+    this.nodeIdx = 0;
+    this.prevBytes = [];
+
+    // Static data
+    this.decodeTables = codec.decodeTables;
+    this.decodeTableSeq = codec.decodeTableSeq;
+    this.defaultCharUnicode = codec.defaultCharUnicode;
+    this.gb18030 = codec.gb18030;
+}
+
+DBCSDecoder.prototype.write = function(buf) {
+    var newBuf = Buffer.alloc(buf.length*2),
+        nodeIdx = this.nodeIdx, 
+        prevBytes = this.prevBytes, prevOffset = this.prevBytes.length,
+        seqStart = -this.prevBytes.length, // idx of the start of current parsed sequence.
+        uCode;
+
+    for (var i = 0, j = 0; i < buf.length; i++) {
+        var curByte = (i >= 0) ? buf[i] : prevBytes[i + prevOffset];
+
+        // Lookup in current trie node.
+        var uCode = this.decodeTables[nodeIdx][curByte];
+
+        if (uCode >= 0) { 
+            // Normal character, just use it.
+        }
+        else if (uCode === UNASSIGNED) { // Unknown char.
+            // TODO: Callback with seq.
+            uCode = this.defaultCharUnicode.charCodeAt(0);
+            i = seqStart; // Skip one byte ('i' will be incremented by the for loop) and try to parse again.
+        }
+        else if (uCode === GB18030_CODE) {
+            if (i >= 3) {
+                var ptr = (buf[i-3]-0x81)*12600 + (buf[i-2]-0x30)*1260 + (buf[i-1]-0x81)*10 + (curByte-0x30);
+            } else {
+                var ptr = (prevBytes[i-3+prevOffset]-0x81)*12600 + 
+                          (((i-2 >= 0) ? buf[i-2] : prevBytes[i-2+prevOffset])-0x30)*1260 + 
+                          (((i-1 >= 0) ? buf[i-1] : prevBytes[i-1+prevOffset])-0x81)*10 + 
+                          (curByte-0x30);
+            }
+            var idx = findIdx(this.gb18030.gbChars, ptr);
+            uCode = this.gb18030.uChars[idx] + ptr - this.gb18030.gbChars[idx];
+        }
+        else if (uCode <= NODE_START) { // Go to next trie node.
+            nodeIdx = NODE_START - uCode;
+            continue;
+        }
+        else if (uCode <= SEQ_START) { // Output a sequence of chars.
+            var seq = this.decodeTableSeq[SEQ_START - uCode];
+            for (var k = 0; k < seq.length - 1; k++) {
+                uCode = seq[k];
+                newBuf[j++] = uCode & 0xFF;
+                newBuf[j++] = uCode >> 8;
+            }
+            uCode = seq[seq.length-1];
+        }
+        else
+            throw new Error("iconv-lite internal error: invalid decoding table value " + uCode + " at " + nodeIdx + "/" + curByte);
+
+        // Write the character to buffer, handling higher planes using surrogate pair.
+        if (uCode >= 0x10000) { 
+            uCode -= 0x10000;
+            var uCodeLead = 0xD800 | (uCode >> 10);
+            newBuf[j++] = uCodeLead & 0xFF;
+            newBuf[j++] = uCodeLead >> 8;
+
+            uCode = 0xDC00 | (uCode & 0x3FF);
+        }
+        newBuf[j++] = uCode & 0xFF;
+        newBuf[j++] = uCode >> 8;
+
+        // Reset trie node.
+        nodeIdx = 0; seqStart = i+1;
+    }
+
+    this.nodeIdx = nodeIdx;
+    this.prevBytes = (seqStart >= 0)
+        ? Array.prototype.slice.call(buf, seqStart)
+        : prevBytes.slice(seqStart + prevOffset).concat(Array.prototype.slice.call(buf));
+
+    return newBuf.slice(0, j).toString('ucs2');
+}
+
+DBCSDecoder.prototype.end = function() {
+    var ret = '';
+
+    // Try to parse all remaining chars.
+    while (this.prevBytes.length > 0) {
+        // Skip 1 character in the buffer.
+        ret += this.defaultCharUnicode;
+        var bytesArr = this.prevBytes.slice(1);
+
+        // Parse remaining as usual.
+        this.prevBytes = [];
+        this.nodeIdx = 0;
+        if (bytesArr.length > 0)
+            ret += this.write(bytesArr);
+    }
+
+    this.prevBytes = [];
+    this.nodeIdx = 0;
+    return ret;
+}
+
+// Binary search for GB18030. Returns largest i such that table[i] <= val.
+function findIdx(table, val) {
+    if (table[0] > val)
+        return -1;
+
+    var l = 0, r = table.length;
+    while (l < r-1) { // always table[l] <= val < table[r]
+        var mid = l + ((r-l+1) >> 1);
+        if (table[mid] <= val)
+            l = mid;
+        else
+            r = mid;
+    }
+    return l;
+}
+
diff --git a/backend/node_modules/iconv-lite/encodings/dbcs-data.js b/backend/node_modules/iconv-lite/encodings/dbcs-data.js
new file mode 100644
index 0000000..0d17e58
--- /dev/null
+++ b/backend/node_modules/iconv-lite/encodings/dbcs-data.js
@@ -0,0 +1,188 @@
+"use strict";
+
+// Description of supported double byte encodings and aliases.
+// Tables are not require()-d until they are needed to speed up library load.
+// require()-s are direct to support Browserify.
+
+module.exports = {
+    
+    // == Japanese/ShiftJIS ====================================================
+    // All japanese encodings are based on JIS X set of standards:
+    // JIS X 0201 - Single-byte encoding of ASCII + ¥ + Kana chars at 0xA1-0xDF.
+    // JIS X 0208 - Main set of 6879 characters, placed in 94x94 plane, to be encoded by 2 bytes. 
+    //              Has several variations in 1978, 1983, 1990 and 1997.
+    // JIS X 0212 - Supplementary plane of 6067 chars in 94x94 plane. 1990. Effectively dead.
+    // JIS X 0213 - Extension and modern replacement of 0208 and 0212. Total chars: 11233.
+    //              2 planes, first is superset of 0208, second - revised 0212.
+    //              Introduced in 2000, revised 2004. Some characters are in Unicode Plane 2 (0x2xxxx)
+
+    // Byte encodings are:
+    //  * Shift_JIS: Compatible with 0201, uses not defined chars in top half as lead bytes for double-byte
+    //               encoding of 0208. Lead byte ranges: 0x81-0x9F, 0xE0-0xEF; Trail byte ranges: 0x40-0x7E, 0x80-0x9E, 0x9F-0xFC.
+    //               Windows CP932 is a superset of Shift_JIS. Some companies added more chars, notably KDDI.
+    //  * EUC-JP:    Up to 3 bytes per character. Used mostly on *nixes.
+    //               0x00-0x7F       - lower part of 0201
+    //               0x8E, 0xA1-0xDF - upper part of 0201
+    //               (0xA1-0xFE)x2   - 0208 plane (94x94).
+    //               0x8F, (0xA1-0xFE)x2 - 0212 plane (94x94).
+    //  * JIS X 208: 7-bit, direct encoding of 0208. Byte ranges: 0x21-0x7E (94 values). Uncommon.
+    //               Used as-is in ISO2022 family.
+    //  * ISO2022-JP: Stateful encoding, with escape sequences to switch between ASCII, 
+    //                0201-1976 Roman, 0208-1978, 0208-1983.
+    //  * ISO2022-JP-1: Adds esc seq for 0212-1990.
+    //  * ISO2022-JP-2: Adds esc seq for GB2313-1980, KSX1001-1992, ISO8859-1, ISO8859-7.
+    //  * ISO2022-JP-3: Adds esc seq for 0201-1976 Kana set, 0213-2000 Planes 1, 2.
+    //  * ISO2022-JP-2004: Adds 0213-2004 Plane 1.
+    //
+    // After JIS X 0213 appeared, Shift_JIS-2004, EUC-JISX0213 and ISO2022-JP-2004 followed, with just changing the planes.
+    //
+    // Overall, it seems that it's a mess :( http://www8.plala.or.jp/tkubota1/unicode-symbols-map2.html
+
+    'shiftjis': {
+        type: '_dbcs',
+        table: function() { return require('./tables/shiftjis.json') },
+        encodeAdd: {'\u00a5': 0x5C, '\u203E': 0x7E},
+        encodeSkipVals: [{from: 0xED40, to: 0xF940}],
+    },
+    'csshiftjis': 'shiftjis',
+    'mskanji': 'shiftjis',
+    'sjis': 'shiftjis',
+    'windows31j': 'shiftjis',
+    'ms31j': 'shiftjis',
+    'xsjis': 'shiftjis',
+    'windows932': 'shiftjis',
+    'ms932': 'shiftjis',
+    '932': 'shiftjis',
+    'cp932': 'shiftjis',
+
+    'eucjp': {
+        type: '_dbcs',
+        table: function() { return require('./tables/eucjp.json') },
+        encodeAdd: {'\u00a5': 0x5C, '\u203E': 0x7E},
+    },
+
+    // TODO: KDDI extension to Shift_JIS
+    // TODO: IBM CCSID 942 = CP932, but F0-F9 custom chars and other char changes.
+    // TODO: IBM CCSID 943 = Shift_JIS = CP932 with original Shift_JIS lower 128 chars.
+
+
+    // == Chinese/GBK ==========================================================
+    // http://en.wikipedia.org/wiki/GBK
+    // We mostly implement W3C recommendation: https://www.w3.org/TR/encoding/#gbk-encoder
+
+    // Oldest GB2312 (1981, ~7600 chars) is a subset of CP936
+    'gb2312': 'cp936',
+    'gb231280': 'cp936',
+    'gb23121980': 'cp936',
+    'csgb2312': 'cp936',
+    'csiso58gb231280': 'cp936',
+    'euccn': 'cp936',
+
+    // Microsoft's CP936 is a subset and approximation of GBK.
+    'windows936': 'cp936',
+    'ms936': 'cp936',
+    '936': 'cp936',
+    'cp936': {
+        type: '_dbcs',
+        table: function() { return require('./tables/cp936.json') },
+    },
+
+    // GBK (~22000 chars) is an extension of CP936 that added user-mapped chars and some other.
+    'gbk': {
+        type: '_dbcs',
+        table: function() { return require('./tables/cp936.json').concat(require('./tables/gbk-added.json')) },
+    },
+    'xgbk': 'gbk',
+    'isoir58': 'gbk',
+
+    // GB18030 is an algorithmic extension of GBK.
+    // Main source: https://www.w3.org/TR/encoding/#gbk-encoder
+    // http://icu-project.org/docs/papers/gb18030.html
+    // http://source.icu-project.org/repos/icu/data/trunk/charset/data/xml/gb-18030-2000.xml
+    // http://www.khngai.com/chinese/charmap/tblgbk.php?page=0
+    'gb18030': {
+        type: '_dbcs',
+        table: function() { return require('./tables/cp936.json').concat(require('./tables/gbk-added.json')) },
+        gb18030: function() { return require('./tables/gb18030-ranges.json') },
+        encodeSkipVals: [0x80],
+        encodeAdd: {'€': 0xA2E3},
+    },
+
+    'chinese': 'gb18030',
+
+
+    // == Korean ===============================================================
+    // EUC-KR, KS_C_5601 and KS X 1001 are exactly the same.
+    'windows949': 'cp949',
+    'ms949': 'cp949',
+    '949': 'cp949',
+    'cp949': {
+        type: '_dbcs',
+        table: function() { return require('./tables/cp949.json') },
+    },
+
+    'cseuckr': 'cp949',
+    'csksc56011987': 'cp949',
+    'euckr': 'cp949',
+    'isoir149': 'cp949',
+    'korean': 'cp949',
+    'ksc56011987': 'cp949',
+    'ksc56011989': 'cp949',
+    'ksc5601': 'cp949',
+
+
+    // == Big5/Taiwan/Hong Kong ================================================
+    // There are lots of tables for Big5 and cp950. Please see the following links for history:
+    // http://moztw.org/docs/big5/  http://www.haible.de/bruno/charsets/conversion-tables/Big5.html
+    // Variations, in roughly number of defined chars:
+    //  * Windows CP 950: Microsoft variant of Big5. Canonical: http://www.unicode.org/Public/MAPPINGS/VENDORS/MICSFT/WINDOWS/CP950.TXT
+    //  * Windows CP 951: Microsoft variant of Big5-HKSCS-2001. Seems to be never public. http://me.abelcheung.org/articles/research/what-is-cp951/
+    //  * Big5-2003 (Taiwan standard) almost superset of cp950.
+    //  * Unicode-at-on (UAO) / Mozilla 1.8. Falling out of use on the Web. Not supported by other browsers.
+    //  * Big5-HKSCS (-2001, -2004, -2008). Hong Kong standard. 
+    //    many unicode code points moved from PUA to Supplementary plane (U+2XXXX) over the years.
+    //    Plus, it has 4 combining sequences.
+    //    Seems that Mozilla refused to support it for 10 yrs. https://bugzilla.mozilla.org/show_bug.cgi?id=162431 https://bugzilla.mozilla.org/show_bug.cgi?id=310299
+    //    because big5-hkscs is the only encoding to include astral characters in non-algorithmic way.
+    //    Implementations are not consistent within browsers; sometimes labeled as just big5.
+    //    MS Internet Explorer switches from big5 to big5-hkscs when a patch applied.
+    //    Great discussion & recap of what's going on https://bugzilla.mozilla.org/show_bug.cgi?id=912470#c31
+    //    In the encoder, it might make sense to support encoding old PUA mappings to Big5 bytes seq-s.
+    //    Official spec: http://www.ogcio.gov.hk/en/business/tech_promotion/ccli/terms/doc/2003cmp_2008.txt
+    //                   http://www.ogcio.gov.hk/tc/business/tech_promotion/ccli/terms/doc/hkscs-2008-big5-iso.txt
+    // 
+    // Current understanding of how to deal with Big5(-HKSCS) is in the Encoding Standard, http://encoding.spec.whatwg.org/#big5-encoder
+    // Unicode mapping (http://www.unicode.org/Public/MAPPINGS/OBSOLETE/EASTASIA/OTHER/BIG5.TXT) is said to be wrong.
+
+    'windows950': 'cp950',
+    'ms950': 'cp950',
+    '950': 'cp950',
+    'cp950': {
+        type: '_dbcs',
+        table: function() { return require('./tables/cp950.json') },
+    },
+
+    // Big5 has many variations and is an extension of cp950. We use Encoding Standard's as a consensus.
+    'big5': 'big5hkscs',
+    'big5hkscs': {
+        type: '_dbcs',
+        table: function() { return require('./tables/cp950.json').concat(require('./tables/big5-added.json')) },
+        encodeSkipVals: [
+            // Although Encoding Standard says we should avoid encoding to HKSCS area (See Step 1 of
+            // https://encoding.spec.whatwg.org/#index-big5-pointer), we still do it to increase compatibility with ICU.
+            // But if a single unicode point can be encoded both as HKSCS and regular Big5, we prefer the latter.
+            0x8e69, 0x8e6f, 0x8e7e, 0x8eab, 0x8eb4, 0x8ecd, 0x8ed0, 0x8f57, 0x8f69, 0x8f6e, 0x8fcb, 0x8ffe,
+            0x906d, 0x907a, 0x90c4, 0x90dc, 0x90f1, 0x91bf, 0x92af, 0x92b0, 0x92b1, 0x92b2, 0x92d1, 0x9447, 0x94ca,
+            0x95d9, 0x96fc, 0x9975, 0x9b76, 0x9b78, 0x9b7b, 0x9bc6, 0x9bde, 0x9bec, 0x9bf6, 0x9c42, 0x9c53, 0x9c62,
+            0x9c68, 0x9c6b, 0x9c77, 0x9cbc, 0x9cbd, 0x9cd0, 0x9d57, 0x9d5a, 0x9dc4, 0x9def, 0x9dfb, 0x9ea9, 0x9eef,
+            0x9efd, 0x9f60, 0x9fcb, 0xa077, 0xa0dc, 0xa0df, 0x8fcc, 0x92c8, 0x9644, 0x96ed,
+
+            // Step 2 of https://encoding.spec.whatwg.org/#index-big5-pointer: Use last pointer for U+2550, U+255E, U+2561, U+256A, U+5341, or U+5345
+            0xa2a4, 0xa2a5, 0xa2a7, 0xa2a6, 0xa2cc, 0xa2ce,
+        ],
+    },
+
+    'cnbig5': 'big5hkscs',
+    'csbig5': 'big5hkscs',
+    'xxbig5': 'big5hkscs',
+};
diff --git a/backend/node_modules/iconv-lite/encodings/index.js b/backend/node_modules/iconv-lite/encodings/index.js
new file mode 100644
index 0000000..d95c244
--- /dev/null
+++ b/backend/node_modules/iconv-lite/encodings/index.js
@@ -0,0 +1,23 @@
+"use strict";
+
+// Update this array if you add/rename/remove files in this directory.
+// We support Browserify by skipping automatic module discovery and requiring modules directly.
+var modules = [
+    require("./internal"),
+    require("./utf32"),
+    require("./utf16"),
+    require("./utf7"),
+    require("./sbcs-codec"),
+    require("./sbcs-data"),
+    require("./sbcs-data-generated"),
+    require("./dbcs-codec"),
+    require("./dbcs-data"),
+];
+
+// Put all encoding/alias/codec definitions to single object and export it.
+for (var i = 0; i < modules.length; i++) {
+    var module = modules[i];
+    for (var enc in module)
+        if (Object.prototype.hasOwnProperty.call(module, enc))
+            exports[enc] = module[enc];
+}
diff --git a/backend/node_modules/iconv-lite/encodings/internal.js b/backend/node_modules/iconv-lite/encodings/internal.js
new file mode 100644
index 0000000..dc1074f
--- /dev/null
+++ b/backend/node_modules/iconv-lite/encodings/internal.js
@@ -0,0 +1,198 @@
+"use strict";
+var Buffer = require("safer-buffer").Buffer;
+
+// Export Node.js internal encodings.
+
+module.exports = {
+    // Encodings
+    utf8:   { type: "_internal", bomAware: true},
+    cesu8:  { type: "_internal", bomAware: true},
+    unicode11utf8: "utf8",
+
+    ucs2:   { type: "_internal", bomAware: true},
+    utf16le: "ucs2",
+
+    binary: { type: "_internal" },
+    base64: { type: "_internal" },
+    hex:    { type: "_internal" },
+
+    // Codec.
+    _internal: InternalCodec,
+};
+
+//------------------------------------------------------------------------------
+
+function InternalCodec(codecOptions, iconv) {
+    this.enc = codecOptions.encodingName;
+    this.bomAware = codecOptions.bomAware;
+
+    if (this.enc === "base64")
+        this.encoder = InternalEncoderBase64;
+    else if (this.enc === "cesu8") {
+        this.enc = "utf8"; // Use utf8 for decoding.
+        this.encoder = InternalEncoderCesu8;
+
+        // Add decoder for versions of Node not supporting CESU-8
+        if (Buffer.from('eda0bdedb2a9', 'hex').toString() !== '💩') {
+            this.decoder = InternalDecoderCesu8;
+            this.defaultCharUnicode = iconv.defaultCharUnicode;
+        }
+    }
+}
+
+InternalCodec.prototype.encoder = InternalEncoder;
+InternalCodec.prototype.decoder = InternalDecoder;
+
+//------------------------------------------------------------------------------
+
+// We use node.js internal decoder. Its signature is the same as ours.
+var StringDecoder = require('string_decoder').StringDecoder;
+
+if (!StringDecoder.prototype.end) // Node v0.8 doesn't have this method.
+    StringDecoder.prototype.end = function() {};
+
+
+function InternalDecoder(options, codec) {
+    this.decoder = new StringDecoder(codec.enc);
+}
+
+InternalDecoder.prototype.write = function(buf) {
+    if (!Buffer.isBuffer(buf)) {
+        buf = Buffer.from(buf);
+    }
+
+    return this.decoder.write(buf);
+}
+
+InternalDecoder.prototype.end = function() {
+    return this.decoder.end();
+}
+
+
+//------------------------------------------------------------------------------
+// Encoder is mostly trivial
+
+function InternalEncoder(options, codec) {
+    this.enc = codec.enc;
+}
+
+InternalEncoder.prototype.write = function(str) {
+    return Buffer.from(str, this.enc);
+}
+
+InternalEncoder.prototype.end = function() {
+}
+
+
+//------------------------------------------------------------------------------
+// Except base64 encoder, which must keep its state.
+
+function InternalEncoderBase64(options, codec) {
+    this.prevStr = '';
+}
+
+InternalEncoderBase64.prototype.write = function(str) {
+    str = this.prevStr + str;
+    var completeQuads = str.length - (str.length % 4);
+    this.prevStr = str.slice(completeQuads);
+    str = str.slice(0, completeQuads);
+
+    return Buffer.from(str, "base64");
+}
+
+InternalEncoderBase64.prototype.end = function() {
+    return Buffer.from(this.prevStr, "base64");
+}
+
+
+//------------------------------------------------------------------------------
+// CESU-8 encoder is also special.
+
+function InternalEncoderCesu8(options, codec) {
+}
+
+InternalEncoderCesu8.prototype.write = function(str) {
+    var buf = Buffer.alloc(str.length * 3), bufIdx = 0;
+    for (var i = 0; i < str.length; i++) {
+        var charCode = str.charCodeAt(i);
+        // Naive implementation, but it works because CESU-8 is especially easy
+        // to convert from UTF-16 (which all JS strings are encoded in).
+        if (charCode < 0x80)
+            buf[bufIdx++] = charCode;
+        else if (charCode < 0x800) {
+            buf[bufIdx++] = 0xC0 + (charCode >>> 6);
+            buf[bufIdx++] = 0x80 + (charCode & 0x3f);
+        }
+        else { // charCode will always be < 0x10000 in javascript.
+            buf[bufIdx++] = 0xE0 + (charCode >>> 12);
+            buf[bufIdx++] = 0x80 + ((charCode >>> 6) & 0x3f);
+            buf[bufIdx++] = 0x80 + (charCode & 0x3f);
+        }
+    }
+    return buf.slice(0, bufIdx);
+}
+
+InternalEncoderCesu8.prototype.end = function() {
+}
+
+//------------------------------------------------------------------------------
+// CESU-8 decoder is not implemented in Node v4.0+
+
+function InternalDecoderCesu8(options, codec) {
+    this.acc = 0;
+    this.contBytes = 0;
+    this.accBytes = 0;
+    this.defaultCharUnicode = codec.defaultCharUnicode;
+}
+
+InternalDecoderCesu8.prototype.write = function(buf) {
+    var acc = this.acc, contBytes = this.contBytes, accBytes = this.accBytes, 
+        res = '';
+    for (var i = 0; i < buf.length; i++) {
+        var curByte = buf[i];
+        if ((curByte & 0xC0) !== 0x80) { // Leading byte
+            if (contBytes > 0) { // Previous code is invalid
+                res += this.defaultCharUnicode;
+                contBytes = 0;
+            }
+
+            if (curByte < 0x80) { // Single-byte code
+                res += String.fromCharCode(curByte);
+            } else if (curByte < 0xE0) { // Two-byte code
+                acc = curByte & 0x1F;
+                contBytes = 1; accBytes = 1;
+            } else if (curByte < 0xF0) { // Three-byte code
+                acc = curByte & 0x0F;
+                contBytes = 2; accBytes = 1;
+            } else { // Four or more are not supported for CESU-8.
+                res += this.defaultCharUnicode;
+            }
+        } else { // Continuation byte
+            if (contBytes > 0) { // We're waiting for it.
+                acc = (acc << 6) | (curByte & 0x3f);
+                contBytes--; accBytes++;
+                if (contBytes === 0) {
+                    // Check for overlong encoding, but support Modified UTF-8 (encoding NULL as C0 80)
+                    if (accBytes === 2 && acc < 0x80 && acc > 0)
+                        res += this.defaultCharUnicode;
+                    else if (accBytes === 3 && acc < 0x800)
+                        res += this.defaultCharUnicode;
+                    else
+                        // Actually add character.
+                        res += String.fromCharCode(acc);
+                }
+            } else { // Unexpected continuation byte
+                res += this.defaultCharUnicode;
+            }
+        }
+    }
+    this.acc = acc; this.contBytes = contBytes; this.accBytes = accBytes;
+    return res;
+}
+
+InternalDecoderCesu8.prototype.end = function() {
+    var res = 0;
+    if (this.contBytes > 0)
+        res += this.defaultCharUnicode;
+    return res;
+}
diff --git a/backend/node_modules/iconv-lite/encodings/sbcs-codec.js b/backend/node_modules/iconv-lite/encodings/sbcs-codec.js
new file mode 100644
index 0000000..abac5ff
--- /dev/null
+++ b/backend/node_modules/iconv-lite/encodings/sbcs-codec.js
@@ -0,0 +1,72 @@
+"use strict";
+var Buffer = require("safer-buffer").Buffer;
+
+// Single-byte codec. Needs a 'chars' string parameter that contains 256 or 128 chars that
+// correspond to encoded bytes (if 128 - then lower half is ASCII). 
+
+exports._sbcs = SBCSCodec;
+function SBCSCodec(codecOptions, iconv) {
+    if (!codecOptions)
+        throw new Error("SBCS codec is called without the data.")
+    
+    // Prepare char buffer for decoding.
+    if (!codecOptions.chars || (codecOptions.chars.length !== 128 && codecOptions.chars.length !== 256))
+        throw new Error("Encoding '"+codecOptions.type+"' has incorrect 'chars' (must be of len 128 or 256)");
+    
+    if (codecOptions.chars.length === 128) {
+        var asciiString = "";
+        for (var i = 0; i < 128; i++)
+            asciiString += String.fromCharCode(i);
+        codecOptions.chars = asciiString + codecOptions.chars;
+    }
+
+    this.decodeBuf = Buffer.from(codecOptions.chars, 'ucs2');
+    
+    // Encoding buffer.
+    var encodeBuf = Buffer.alloc(65536, iconv.defaultCharSingleByte.charCodeAt(0));
+
+    for (var i = 0; i < codecOptions.chars.length; i++)
+        encodeBuf[codecOptions.chars.charCodeAt(i)] = i;
+
+    this.encodeBuf = encodeBuf;
+}
+
+SBCSCodec.prototype.encoder = SBCSEncoder;
+SBCSCodec.prototype.decoder = SBCSDecoder;
+
+
+function SBCSEncoder(options, codec) {
+    this.encodeBuf = codec.encodeBuf;
+}
+
+SBCSEncoder.prototype.write = function(str) {
+    var buf = Buffer.alloc(str.length);
+    for (var i = 0; i < str.length; i++)
+        buf[i] = this.encodeBuf[str.charCodeAt(i)];
+    
+    return buf;
+}
+
+SBCSEncoder.prototype.end = function() {
+}
+
+
+function SBCSDecoder(options, codec) {
+    this.decodeBuf = codec.decodeBuf;
+}
+
+SBCSDecoder.prototype.write = function(buf) {
+    // Strings are immutable in JS -> we use ucs2 buffer to speed up computations.
+    var decodeBuf = this.decodeBuf;
+    var newBuf = Buffer.alloc(buf.length*2);
+    var idx1 = 0, idx2 = 0;
+    for (var i = 0; i < buf.length; i++) {
+        idx1 = buf[i]*2; idx2 = i*2;
+        newBuf[idx2] = decodeBuf[idx1];
+        newBuf[idx2+1] = decodeBuf[idx1+1];
+    }
+    return newBuf.toString('ucs2');
+}
+
+SBCSDecoder.prototype.end = function() {
+}
diff --git a/backend/node_modules/iconv-lite/encodings/sbcs-data-generated.js b/backend/node_modules/iconv-lite/encodings/sbcs-data-generated.js
new file mode 100644
index 0000000..9b48236
--- /dev/null
+++ b/backend/node_modules/iconv-lite/encodings/sbcs-data-generated.js
@@ -0,0 +1,451 @@
+"use strict";
+
+// Generated data for sbcs codec. Don't edit manually. Regenerate using generation/gen-sbcs.js script.
+module.exports = {
+  "437": "cp437",
+  "737": "cp737",
+  "775": "cp775",
+  "850": "cp850",
+  "852": "cp852",
+  "855": "cp855",
+  "856": "cp856",
+  "857": "cp857",
+  "858": "cp858",
+  "860": "cp860",
+  "861": "cp861",
+  "862": "cp862",
+  "863": "cp863",
+  "864": "cp864",
+  "865": "cp865",
+  "866": "cp866",
+  "869": "cp869",
+  "874": "windows874",
+  "922": "cp922",
+  "1046": "cp1046",
+  "1124": "cp1124",
+  "1125": "cp1125",
+  "1129": "cp1129",
+  "1133": "cp1133",
+  "1161": "cp1161",
+  "1162": "cp1162",
+  "1163": "cp1163",
+  "1250": "windows1250",
+  "1251": "windows1251",
+  "1252": "windows1252",
+  "1253": "windows1253",
+  "1254": "windows1254",
+  "1255": "windows1255",
+  "1256": "windows1256",
+  "1257": "windows1257",
+  "1258": "windows1258",
+  "28591": "iso88591",
+  "28592": "iso88592",
+  "28593": "iso88593",
+  "28594": "iso88594",
+  "28595": "iso88595",
+  "28596": "iso88596",
+  "28597": "iso88597",
+  "28598": "iso88598",
+  "28599": "iso88599",
+  "28600": "iso885910",
+  "28601": "iso885911",
+  "28603": "iso885913",
+  "28604": "iso885914",
+  "28605": "iso885915",
+  "28606": "iso885916",
+  "windows874": {
+    "type": "_sbcs",
+    "chars": "€����…�����������‘’“”•–—�������� กขฃคฅฆงจฉชซฌญฎฏฐฑฒณดตถทธนบปผฝพฟภมยรฤลฦวศษสหฬอฮฯะัาำิีึืฺุู����฿เแโใไๅๆ็่้๊๋์ํ๎๏๐๑๒๓๔๕๖๗๘๙๚๛����"
+  },
+  "win874": "windows874",
+  "cp874": "windows874",
+  "windows1250": {
+    "type": "_sbcs",
+    "chars": "€�‚�„…†‡�‰Š‹ŚŤŽŹ�‘’“”•–—�™š›śťžź ˇ˘Ł¤Ą¦§¨©Ş«¬­®Ż°±˛ł´µ¶·¸ąş»Ľ˝ľżŔÁÂĂÄĹĆÇČÉĘËĚÍÎĎĐŃŇÓÔŐÖ×ŘŮÚŰÜÝŢßŕáâăäĺćçčéęëěíîďđńňóôőö÷řůúűüýţ˙"
+  },
+  "win1250": "windows1250",
+  "cp1250": "windows1250",
+  "windows1251": {
+    "type": "_sbcs",
+    "chars": "ЂЃ‚ѓ„…†‡€‰Љ‹ЊЌЋЏђ‘’“”•–—�™љ›њќћџ ЎўЈ¤Ґ¦§Ё©Є«¬­®Ї°±Ііґµ¶·ё№є»јЅѕїАБВГДЕЖЗИЙКЛМНОПРСТУФХЦЧШЩЪЫЬЭЮЯабвгдежзийклмнопрстуфхцчшщъыьэюя"
+  },
+  "win1251": "windows1251",
+  "cp1251": "windows1251",
+  "windows1252": {
+    "type": "_sbcs",
+    "chars": "€�‚ƒ„…†‡ˆ‰Š‹Œ�Ž��‘’“”•–—˜™š›œ�žŸ ¡¢£¤¥¦§¨©ª«¬­®¯°±²³´µ¶·¸¹º»¼½¾¿ÀÁÂÃÄÅÆÇÈÉÊËÌÍÎÏÐÑÒÓÔÕÖ×ØÙÚÛÜÝÞßàáâãäåæçèéêëìíîïðñòóôõö÷øùúûüýþÿ"
+  },
+  "win1252": "windows1252",
+  "cp1252": "windows1252",
+  "windows1253": {
+    "type": "_sbcs",
+    "chars": "€�‚ƒ„…†‡�‰�‹�����‘’“”•–—�™�›���� ΅Ά£¤¥¦§¨©�«¬­®―°±²³΄µ¶·ΈΉΊ»Ό½ΎΏΐΑΒΓΔΕΖΗΘΙΚΛΜΝΞΟΠΡ�ΣΤΥΦΧΨΩΪΫάέήίΰαβγδεζηθικλμνξοπρςστυφχψωϊϋόύώ�"
+  },
+  "win1253": "windows1253",
+  "cp1253": "windows1253",
+  "windows1254": {
+    "type": "_sbcs",
+    "chars": "€�‚ƒ„…†‡ˆ‰Š‹Œ����‘’“”•–—˜™š›œ��Ÿ ¡¢£¤¥¦§¨©ª«¬­®¯°±²³´µ¶·¸¹º»¼½¾¿ÀÁÂÃÄÅÆÇÈÉÊËÌÍÎÏĞÑÒÓÔÕÖ×ØÙÚÛÜİŞßàáâãäåæçèéêëìíîïğñòóôõö÷øùúûüışÿ"
+  },
+  "win1254": "windows1254",
+  "cp1254": "windows1254",
+  "windows1255": {
+    "type": "_sbcs",
+    "chars": "€�‚ƒ„…†‡ˆ‰�‹�����‘’“”•–—˜™�›���� ¡¢£₪¥¦§¨©×«¬­®¯°±²³´µ¶·¸¹÷»¼½¾¿ְֱֲֳִֵֶַָֹֺֻּֽ־ֿ׀ׁׂ׃װױײ׳״�������אבגדהוזחטיךכלםמןנסעףפץצקרשת��‎‏�"
+  },
+  "win1255": "windows1255",
+  "cp1255": "windows1255",
+  "windows1256": {
+    "type": "_sbcs",
+    "chars": "€پ‚ƒ„…†‡ˆ‰ٹ‹Œچژڈگ‘’“”•–—ک™ڑ›œ‌‍ں ،¢£¤¥¦§¨©ھ«¬­®¯°±²³´µ¶·¸¹؛»¼½¾؟ہءآأؤإئابةتثجحخدذرزسشصض×طظعغـفقكàلâمنهوçèéêëىيîïًٌٍَôُِ÷ّùْûü‎‏ے"
+  },
+  "win1256": "windows1256",
+  "cp1256": "windows1256",
+  "windows1257": {
+    "type": "_sbcs",
+    "chars": "€�‚�„…†‡�‰�‹�¨ˇ¸�‘’“”•–—�™�›�¯˛� �¢£¤�¦§Ø©Ŗ«¬­®Æ°±²³´µ¶·ø¹ŗ»¼½¾æĄĮĀĆÄÅĘĒČÉŹĖĢĶĪĻŠŃŅÓŌÕÖ×ŲŁŚŪÜŻŽßąįāćäåęēčéźėģķīļšńņóōõö÷ųłśūüżž˙"
+  },
+  "win1257": "windows1257",
+  "cp1257": "windows1257",
+  "windows1258": {
+    "type": "_sbcs",
+    "chars": "€�‚ƒ„…†‡ˆ‰�‹Œ����‘’“”•–—˜™�›œ��Ÿ ¡¢£¤¥¦§¨©ª«¬­®¯°±²³´µ¶·¸¹º»¼½¾¿ÀÁÂĂÄÅÆÇÈÉÊË̀ÍÎÏĐÑ̉ÓÔƠÖ×ØÙÚÛÜỮßàáâăäåæçèéêë́íîïđṇ̃óôơö÷øùúûüư₫ÿ"
+  },
+  "win1258": "windows1258",
+  "cp1258": "windows1258",
+  "iso88591": {
+    "type": "_sbcs",
+    "chars": "€‚ƒ„…†‡ˆ‰Š‹ŒŽ‘’“”•–—˜™š›œžŸ ¡¢£¤¥¦§¨©ª«¬­®¯°±²³´µ¶·¸¹º»¼½¾¿ÀÁÂÃÄÅÆÇÈÉÊËÌÍÎÏÐÑÒÓÔÕÖ×ØÙÚÛÜÝÞßàáâãäåæçèéêëìíîïðñòóôõö÷øùúûüýþÿ"
+  },
+  "cp28591": "iso88591",
+  "iso88592": {
+    "type": "_sbcs",
+    "chars": "€‚ƒ„…†‡ˆ‰Š‹ŒŽ‘’“”•–—˜™š›œžŸ Ą˘Ł¤ĽŚ§¨ŠŞŤŹ­ŽŻ°ą˛ł´ľśˇ¸šşťź˝žżŔÁÂĂÄĹĆÇČÉĘËĚÍÎĎĐŃŇÓÔŐÖ×ŘŮÚŰÜÝŢßŕáâăäĺćçčéęëěíîďđńňóôőö÷řůúűüýţ˙"
+  },
+  "cp28592": "iso88592",
+  "iso88593": {
+    "type": "_sbcs",
+    "chars": "€‚ƒ„…†‡ˆ‰Š‹ŒŽ‘’“”•–—˜™š›œžŸ Ħ˘£¤�Ĥ§¨İŞĞĴ­�Ż°ħ²³´µĥ·¸ışğĵ½�żÀÁÂ�ÄĊĈÇÈÉÊËÌÍÎÏ�ÑÒÓÔĠÖ×ĜÙÚÛÜŬŜßàáâ�äċĉçèéêëìíîï�ñòóôġö÷ĝùúûüŭŝ˙"
+  },
+  "cp28593": "iso88593",
+  "iso88594": {
+    "type": "_sbcs",
+    "chars": "€‚ƒ„…†‡ˆ‰Š‹ŒŽ‘’“”•–—˜™š›œžŸ ĄĸŖ¤ĨĻ§¨ŠĒĢŦ­Ž¯°ą˛ŗ´ĩļˇ¸šēģŧŊžŋĀÁÂÃÄÅÆĮČÉĘËĖÍÎĪĐŅŌĶÔÕÖ×ØŲÚÛÜŨŪßāáâãäåæįčéęëėíîīđņōķôõö÷øųúûüũū˙"
+  },
+  "cp28594": "iso88594",
+  "iso88595": {
+    "type": "_sbcs",
+    "chars": "€‚ƒ„…†‡ˆ‰Š‹ŒŽ‘’“”•–—˜™š›œžŸ ЁЂЃЄЅІЇЈЉЊЋЌ­ЎЏАБВГДЕЖЗИЙКЛМНОПРСТУФХЦЧШЩЪЫЬЭЮЯабвгдежзийклмнопрстуфхцчшщъыьэюя№ёђѓєѕіїјљњћќ§ўџ"
+  },
+  "cp28595": "iso88595",
+  "iso88596": {
+    "type": "_sbcs",
+    "chars": "€‚ƒ„…†‡ˆ‰Š‹ŒŽ‘’“”•–—˜™š›œžŸ ���¤�������،­�������������؛���؟�ءآأؤإئابةتثجحخدذرزسشصضطظعغ�����ـفقكلمنهوىيًٌٍَُِّْ�������������"
+  },
+  "cp28596": "iso88596",
+  "iso88597": {
+    "type": "_sbcs",
+    "chars": "€‚ƒ„…†‡ˆ‰Š‹ŒŽ‘’“”•–—˜™š›œžŸ ‘’£€₯¦§¨©ͺ«¬­�―°±²³΄΅Ά·ΈΉΊ»Ό½ΎΏΐΑΒΓΔΕΖΗΘΙΚΛΜΝΞΟΠΡ�ΣΤΥΦΧΨΩΪΫάέήίΰαβγδεζηθικλμνξοπρςστυφχψωϊϋόύώ�"
+  },
+  "cp28597": "iso88597",
+  "iso88598": {
+    "type": "_sbcs",
+    "chars": "€‚ƒ„…†‡ˆ‰Š‹ŒŽ‘’“”•–—˜™š›œžŸ �¢£¤¥¦§¨©×«¬­®¯°±²³´µ¶·¸¹÷»¼½¾��������������������������������‗אבגדהוזחטיךכלםמןנסעףפץצקרשת��‎‏�"
+  },
+  "cp28598": "iso88598",
+  "iso88599": {
+    "type": "_sbcs",
+    "chars": "€‚ƒ„…†‡ˆ‰Š‹ŒŽ‘’“”•–—˜™š›œžŸ ¡¢£¤¥¦§¨©ª«¬­®¯°±²³´µ¶·¸¹º»¼½¾¿ÀÁÂÃÄÅÆÇÈÉÊËÌÍÎÏĞÑÒÓÔÕÖ×ØÙÚÛÜİŞßàáâãäåæçèéêëìíîïğñòóôõö÷øùúûüışÿ"
+  },
+  "cp28599": "iso88599",
+  "iso885910": {
+    "type": "_sbcs",
+    "chars": "€‚ƒ„…†‡ˆ‰Š‹ŒŽ‘’“”•–—˜™š›œžŸ ĄĒĢĪĨĶ§ĻĐŠŦŽ­ŪŊ°ąēģīĩķ·ļđšŧž―ūŋĀÁÂÃÄÅÆĮČÉĘËĖÍÎÏÐŅŌÓÔÕÖŨØŲÚÛÜÝÞßāáâãäåæįčéęëėíîïðņōóôõöũøųúûüýþĸ"
+  },
+  "cp28600": "iso885910",
+  "iso885911": {
+    "type": "_sbcs",
+    "chars": "€‚ƒ„…†‡ˆ‰Š‹ŒŽ‘’“”•–—˜™š›œžŸ กขฃคฅฆงจฉชซฌญฎฏฐฑฒณดตถทธนบปผฝพฟภมยรฤลฦวศษสหฬอฮฯะัาำิีึืฺุู����฿เแโใไๅๆ็่้๊๋์ํ๎๏๐๑๒๓๔๕๖๗๘๙๚๛����"
+  },
+  "cp28601": "iso885911",
+  "iso885913": {
+    "type": "_sbcs",
+    "chars": "€‚ƒ„…†‡ˆ‰Š‹ŒŽ‘’“”•–—˜™š›œžŸ ”¢£¤„¦§Ø©Ŗ«¬­®Æ°±²³“µ¶·ø¹ŗ»¼½¾æĄĮĀĆÄÅĘĒČÉŹĖĢĶĪĻŠŃŅÓŌÕÖ×ŲŁŚŪÜŻŽßąįāćäåęēčéźėģķīļšńņóōõö÷ųłśūüżž’"
+  },
+  "cp28603": "iso885913",
+  "iso885914": {
+    "type": "_sbcs",
+    "chars": "€‚ƒ„…†‡ˆ‰Š‹ŒŽ‘’“”•–—˜™š›œžŸ Ḃḃ£ĊċḊ§Ẁ©ẂḋỲ­®ŸḞḟĠġṀṁ¶ṖẁṗẃṠỳẄẅṡÀÁÂÃÄÅÆÇÈÉÊËÌÍÎÏŴÑÒÓÔÕÖṪØÙÚÛÜÝŶßàáâãäåæçèéêëìíîïŵñòóôõöṫøùúûüýŷÿ"
+  },
+  "cp28604": "iso885914",
+  "iso885915": {
+    "type": "_sbcs",
+    "chars": "€‚ƒ„…†‡ˆ‰Š‹ŒŽ‘’“”•–—˜™š›œžŸ ¡¢£€¥Š§š©ª«¬­®¯°±²³Žµ¶·ž¹º»ŒœŸ¿ÀÁÂÃÄÅÆÇÈÉÊËÌÍÎÏÐÑÒÓÔÕÖ×ØÙÚÛÜÝÞßàáâãäåæçèéêëìíîïðñòóôõö÷øùúûüýþÿ"
+  },
+  "cp28605": "iso885915",
+  "iso885916": {
+    "type": "_sbcs",
+    "chars": "€‚ƒ„…†‡ˆ‰Š‹ŒŽ‘’“”•–—˜™š›œžŸ ĄąŁ€„Š§š©Ș«Ź­źŻ°±ČłŽ”¶·žčș»ŒœŸżÀÁÂĂÄĆÆÇÈÉÊËÌÍÎÏĐŃÒÓÔŐÖŚŰÙÚÛÜĘȚßàáâăäćæçèéêëìíîïđńòóôőöśűùúûüęțÿ"
+  },
+  "cp28606": "iso885916",
+  "cp437": {
+    "type": "_sbcs",
+    "chars": "ÇüéâäàåçêëèïîìÄÅÉæÆôöòûùÿÖÜ¢£¥₧ƒáíóúñѪº¿⌐¬½¼¡«»░▒▓│┤╡╢╖╕╣║╗╝╜╛┐└┴┬├─┼╞╟╚╔╩╦╠═╬╧╨╤╥╙╘╒╓╫╪┘┌█▄▌▐▀αßΓπΣσµτΦΘΩδ∞φε∩≡±≥≤⌠⌡÷≈°∙·√ⁿ²■ "
+  },
+  "ibm437": "cp437",
+  "csibm437": "cp437",
+  "cp737": {
+    "type": "_sbcs",
+    "chars": "ΑΒΓΔΕΖΗΘΙΚΛΜΝΞΟΠΡΣΤΥΦΧΨΩαβγδεζηθικλμνξοπρσςτυφχψ░▒▓│┤╡╢╖╕╣║╗╝╜╛┐└┴┬├─┼╞╟╚╔╩╦╠═╬╧╨╤╥╙╘╒╓╫╪┘┌█▄▌▐▀ωάέήϊίόύϋώΆΈΉΊΌΎΏ±≥≤ΪΫ÷≈°∙·√ⁿ²■ "
+  },
+  "ibm737": "cp737",
+  "csibm737": "cp737",
+  "cp775": {
+    "type": "_sbcs",
+    "chars": "ĆüéāäģåćłēŖŗīŹÄÅÉæÆōöĢ¢ŚśÖÜø£ØפĀĪóŻżź”¦©®¬½¼Ł«»░▒▓│┤ĄČĘĖ╣║╗╝ĮŠ┐└┴┬├─┼ŲŪ╚╔╩╦╠═╬Žąčęėįšųūž┘┌█▄▌▐▀ÓßŌŃõÕµńĶķĻļņĒŅ’­±“¾¶§÷„°∙·¹³²■ "
+  },
+  "ibm775": "cp775",
+  "csibm775": "cp775",
+  "cp850": {
+    "type": "_sbcs",
+    "chars": "ÇüéâäàåçêëèïîìÄÅÉæÆôöòûùÿÖÜø£Ø׃áíóúñѪº¿®¬½¼¡«»░▒▓│┤ÁÂÀ©╣║╗╝¢¥┐└┴┬├─┼ãÃ╚╔╩╦╠═╬¤ðÐÊËÈıÍÎÏ┘┌█▄¦Ì▀ÓßÔÒõÕµþÞÚÛÙýݯ´­±‗¾¶§÷¸°¨·¹³²■ "
+  },
+  "ibm850": "cp850",
+  "csibm850": "cp850",
+  "cp852": {
+    "type": "_sbcs",
+    "chars": "ÇüéâäůćçłëŐőîŹÄĆÉĹĺôöĽľŚśÖÜŤťŁ×čáíóúĄąŽžĘ꬟Ⱥ«»░▒▓│┤ÁÂĚŞ╣║╗╝Żż┐└┴┬├─┼Ăă╚╔╩╦╠═╬¤đĐĎËďŇÍÎě┘┌█▄ŢŮ▀ÓßÔŃńňŠšŔÚŕŰýÝţ´­˝˛ˇ˘§÷¸°¨˙űŘř■ "
+  },
+  "ibm852": "cp852",
+  "csibm852": "cp852",
+  "cp855": {
+    "type": "_sbcs",
+    "chars": "ђЂѓЃёЁєЄѕЅіІїЇјЈљЉњЊћЋќЌўЎџЏюЮъЪаАбБцЦдДеЕфФгГ«»░▒▓│┤хХиИ╣║╗╝йЙ┐└┴┬├─┼кК╚╔╩╦╠═╬¤лЛмМнНоОп┘┌█▄Пя▀ЯрРсСтТуУжЖвВьЬ№­ыЫзЗшШэЭщЩчЧ§■ "
+  },
+  "ibm855": "cp855",
+  "csibm855": "cp855",
+  "cp856": {
+    "type": "_sbcs",
+    "chars": "אבגדהוזחטיךכלםמןנסעףפץצקרשת�£�×����������®¬½¼�«»░▒▓│┤���©╣║╗╝¢¥┐└┴┬├─┼��╚╔╩╦╠═╬¤���������┘┌█▄¦�▀������µ�������¯´­±‗¾¶§÷¸°¨·¹³²■ "
+  },
+  "ibm856": "cp856",
+  "csibm856": "cp856",
+  "cp857": {
+    "type": "_sbcs",
+    "chars": "ÇüéâäàåçêëèïîıÄÅÉæÆôöòûùİÖÜø£ØŞşáíóúñÑĞ𿮬½¼¡«»░▒▓│┤ÁÂÀ©╣║╗╝¢¥┐└┴┬├─┼ãÃ╚╔╩╦╠═╬¤ºªÊËÈ�ÍÎÏ┘┌█▄¦Ì▀ÓßÔÒõÕµ�×ÚÛÙìÿ¯´­±�¾¶§÷¸°¨·¹³²■ "
+  },
+  "ibm857": "cp857",
+  "csibm857": "cp857",
+  "cp858": {
+    "type": "_sbcs",
+    "chars": "ÇüéâäàåçêëèïîìÄÅÉæÆôöòûùÿÖÜø£Ø׃áíóúñѪº¿®¬½¼¡«»░▒▓│┤ÁÂÀ©╣║╗╝¢¥┐└┴┬├─┼ãÃ╚╔╩╦╠═╬¤ðÐÊËÈ€ÍÎÏ┘┌█▄¦Ì▀ÓßÔÒõÕµþÞÚÛÙýݯ´­±‗¾¶§÷¸°¨·¹³²■ "
+  },
+  "ibm858": "cp858",
+  "csibm858": "cp858",
+  "cp860": {
+    "type": "_sbcs",
+    "chars": "ÇüéâãàÁçêÊèÍÔìÃÂÉÀÈôõòÚùÌÕÜ¢£Ù₧ÓáíóúñѪº¿Ò¬½¼¡«»░▒▓│┤╡╢╖╕╣║╗╝╜╛┐└┴┬├─┼╞╟╚╔╩╦╠═╬╧╨╤╥╙╘╒╓╫╪┘┌█▄▌▐▀αßΓπΣσµτΦΘΩδ∞φε∩≡±≥≤⌠⌡÷≈°∙·√ⁿ²■ "
+  },
+  "ibm860": "cp860",
+  "csibm860": "cp860",
+  "cp861": {
+    "type": "_sbcs",
+    "chars": "ÇüéâäàåçêëèÐðÞÄÅÉæÆôöþûÝýÖÜø£Ø₧ƒáíóúÁÍÓÚ¿⌐¬½¼¡«»░▒▓│┤╡╢╖╕╣║╗╝╜╛┐└┴┬├─┼╞╟╚╔╩╦╠═╬╧╨╤╥╙╘╒╓╫╪┘┌█▄▌▐▀αßΓπΣσµτΦΘΩδ∞φε∩≡±≥≤⌠⌡÷≈°∙·√ⁿ²■ "
+  },
+  "ibm861": "cp861",
+  "csibm861": "cp861",
+  "cp862": {
+    "type": "_sbcs",
+    "chars": "אבגדהוזחטיךכלםמןנסעףפץצקרשת¢£¥₧ƒáíóúñѪº¿⌐¬½¼¡«»░▒▓│┤╡╢╖╕╣║╗╝╜╛┐└┴┬├─┼╞╟╚╔╩╦╠═╬╧╨╤╥╙╘╒╓╫╪┘┌█▄▌▐▀αßΓπΣσµτΦΘΩδ∞φε∩≡±≥≤⌠⌡÷≈°∙·√ⁿ²■ "
+  },
+  "ibm862": "cp862",
+  "csibm862": "cp862",
+  "cp863": {
+    "type": "_sbcs",
+    "chars": "ÇüéâÂà¶çêëèïî‗À§ÉÈÊôËÏûù¤ÔÜ¢£ÙÛƒ¦´óú¨¸³¯Î⌐¬½¼¾«»░▒▓│┤╡╢╖╕╣║╗╝╜╛┐└┴┬├─┼╞╟╚╔╩╦╠═╬╧╨╤╥╙╘╒╓╫╪┘┌█▄▌▐▀αßΓπΣσµτΦΘΩδ∞φε∩≡±≥≤⌠⌡÷≈°∙·√ⁿ²■ "
+  },
+  "ibm863": "cp863",
+  "csibm863": "cp863",
+  "cp864": {
+    "type": "_sbcs",
+    "chars": "\u0000\u0001\u0002\u0003\u0004\u0005\u0006\u0007\b\t\n\u000b\f\r\u000e\u000f\u0010\u0011\u0012\u0013\u0014\u0015\u0016\u0017\u0018\u0019\u001a\u001b\u001c\u001d\u001e\u001f !\"#$٪&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\\]^_`abcdefghijklmnopqrstuvwxyz{|}~°·∙√▒─│┼┤┬├┴┐┌└┘β∞φ±½¼≈«»ﻷﻸ��ﻻﻼ� ­ﺂ£¤ﺄ��ﺎﺏﺕﺙ،ﺝﺡﺥ٠١٢٣٤٥٦٧٨٩ﻑ؛ﺱﺵﺹ؟¢ﺀﺁﺃﺅﻊﺋﺍﺑﺓﺗﺛﺟﺣﺧﺩﺫﺭﺯﺳﺷﺻﺿﻁﻅﻋﻏ¦¬÷×ﻉـﻓﻗﻛﻟﻣﻧﻫﻭﻯﻳﺽﻌﻎﻍﻡﹽّﻥﻩﻬﻰﻲﻐﻕﻵﻶﻝﻙﻱ■�"
+  },
+  "ibm864": "cp864",
+  "csibm864": "cp864",
+  "cp865": {
+    "type": "_sbcs",
+    "chars": "ÇüéâäàåçêëèïîìÄÅÉæÆôöòûùÿÖÜø£Ø₧ƒáíóúñѪº¿⌐¬½¼¡«¤░▒▓│┤╡╢╖╕╣║╗╝╜╛┐└┴┬├─┼╞╟╚╔╩╦╠═╬╧╨╤╥╙╘╒╓╫╪┘┌█▄▌▐▀αßΓπΣσµτΦΘΩδ∞φε∩≡±≥≤⌠⌡÷≈°∙·√ⁿ²■ "
+  },
+  "ibm865": "cp865",
+  "csibm865": "cp865",
+  "cp866": {
+    "type": "_sbcs",
+    "chars": "АБВГДЕЖЗИЙКЛМНОПРСТУФХЦЧШЩЪЫЬЭЮЯабвгдежзийклмноп░▒▓│┤╡╢╖╕╣║╗╝╜╛┐└┴┬├─┼╞╟╚╔╩╦╠═╬╧╨╤╥╙╘╒╓╫╪┘┌█▄▌▐▀рстуфхцчшщъыьэюяЁёЄєЇїЎў°∙·√№¤■ "
+  },
+  "ibm866": "cp866",
+  "csibm866": "cp866",
+  "cp869": {
+    "type": "_sbcs",
+    "chars": "������Ά�·¬¦‘’Έ―ΉΊΪΌ��ΎΫ©Ώ²³ά£έήίϊΐόύΑΒΓΔΕΖΗ½ΘΙ«»░▒▓│┤ΚΛΜΝ╣║╗╝ΞΟ┐└┴┬├─┼ΠΡ╚╔╩╦╠═╬ΣΤΥΦΧΨΩαβγ┘┌█▄δε▀ζηθικλμνξοπρσςτ΄­±υφχ§ψ΅°¨ωϋΰώ■ "
+  },
+  "ibm869": "cp869",
+  "csibm869": "cp869",
+  "cp922": {
+    "type": "_sbcs",
+    "chars": "€‚ƒ„…†‡ˆ‰Š‹ŒŽ‘’“”•–—˜™š›œžŸ ¡¢£¤¥¦§¨©ª«¬­®‾°±²³´µ¶·¸¹º»¼½¾¿ÀÁÂÃÄÅÆÇÈÉÊËÌÍÎÏŠÑÒÓÔÕÖ×ØÙÚÛÜÝŽßàáâãäåæçèéêëìíîïšñòóôõö÷øùúûüýžÿ"
+  },
+  "ibm922": "cp922",
+  "csibm922": "cp922",
+  "cp1046": {
+    "type": "_sbcs",
+    "chars": "ﺈ×÷ﹱˆ■│─┐┌└┘ﹹﹻﹽﹿﹷﺊﻰﻳﻲﻎﻏﻐﻶﻸﻺﻼ ¤ﺋﺑﺗﺛﺟﺣ،­ﺧﺳ٠١٢٣٤٥٦٧٨٩ﺷ؛ﺻﺿﻊ؟ﻋءآأؤإئابةتثجحخدذرزسشصضطﻇعغﻌﺂﺄﺎﻓـفقكلمنهوىيًٌٍَُِّْﻗﻛﻟﻵﻷﻹﻻﻣﻧﻬﻩ�"
+  },
+  "ibm1046": "cp1046",
+  "csibm1046": "cp1046",
+  "cp1124": {
+    "type": "_sbcs",
+    "chars": "€‚ƒ„…†‡ˆ‰Š‹ŒŽ‘’“”•–—˜™š›œžŸ ЁЂҐЄЅІЇЈЉЊЋЌ­ЎЏАБВГДЕЖЗИЙКЛМНОПРСТУФХЦЧШЩЪЫЬЭЮЯабвгдежзийклмнопрстуфхцчшщъыьэюя№ёђґєѕіїјљњћќ§ўџ"
+  },
+  "ibm1124": "cp1124",
+  "csibm1124": "cp1124",
+  "cp1125": {
+    "type": "_sbcs",
+    "chars": "АБВГДЕЖЗИЙКЛМНОПРСТУФХЦЧШЩЪЫЬЭЮЯабвгдежзийклмноп░▒▓│┤╡╢╖╕╣║╗╝╜╛┐└┴┬├─┼╞╟╚╔╩╦╠═╬╧╨╤╥╙╘╒╓╫╪┘┌█▄▌▐▀рстуфхцчшщъыьэюяЁёҐґЄєІіЇї·√№¤■ "
+  },
+  "ibm1125": "cp1125",
+  "csibm1125": "cp1125",
+  "cp1129": {
+    "type": "_sbcs",
+    "chars": "€‚ƒ„…†‡ˆ‰Š‹ŒŽ‘’“”•–—˜™š›œžŸ ¡¢£¤¥¦§œ©ª«¬­®¯°±²³Ÿµ¶·Œ¹º»¼½¾¿ÀÁÂĂÄÅÆÇÈÉÊË̀ÍÎÏĐÑ̉ÓÔƠÖ×ØÙÚÛÜỮßàáâăäåæçèéêë́íîïđṇ̃óôơö÷øùúûüư₫ÿ"
+  },
+  "ibm1129": "cp1129",
+  "csibm1129": "cp1129",
+  "cp1133": {
+    "type": "_sbcs",
+    "chars": "€‚ƒ„…†‡ˆ‰Š‹ŒŽ‘’“”•–—˜™š›œžŸ ກຂຄງຈສຊຍດຕຖທນບປຜຝພຟມຢຣລວຫອຮ���ຯະາຳິີຶືຸູຼັົຽ���ເແໂໃໄ່້໊໋໌ໍໆ�ໜໝ₭����������������໐໑໒໓໔໕໖໗໘໙��¢¬¦�"
+  },
+  "ibm1133": "cp1133",
+  "csibm1133": "cp1133",
+  "cp1161": {
+    "type": "_sbcs",
+    "chars": "��������������������������������่กขฃคฅฆงจฉชซฌญฎฏฐฑฒณดตถทธนบปผฝพฟภมยรฤลฦวศษสหฬอฮฯะัาำิีึืฺุู้๊๋€฿เแโใไๅๆ็่้๊๋์ํ๎๏๐๑๒๓๔๕๖๗๘๙๚๛¢¬¦ "
+  },
+  "ibm1161": "cp1161",
+  "csibm1161": "cp1161",
+  "cp1162": {
+    "type": "_sbcs",
+    "chars": "€‚ƒ„…†‡ˆ‰Š‹ŒŽ‘’“”•–—˜™š›œžŸ กขฃคฅฆงจฉชซฌญฎฏฐฑฒณดตถทธนบปผฝพฟภมยรฤลฦวศษสหฬอฮฯะัาำิีึืฺุู����฿เแโใไๅๆ็่้๊๋์ํ๎๏๐๑๒๓๔๕๖๗๘๙๚๛����"
+  },
+  "ibm1162": "cp1162",
+  "csibm1162": "cp1162",
+  "cp1163": {
+    "type": "_sbcs",
+    "chars": "€‚ƒ„…†‡ˆ‰Š‹ŒŽ‘’“”•–—˜™š›œžŸ ¡¢£€¥¦§œ©ª«¬­®¯°±²³Ÿµ¶·Œ¹º»¼½¾¿ÀÁÂĂÄÅÆÇÈÉÊË̀ÍÎÏĐÑ̉ÓÔƠÖ×ØÙÚÛÜỮßàáâăäåæçèéêë́íîïđṇ̃óôơö÷øùúûüư₫ÿ"
+  },
+  "ibm1163": "cp1163",
+  "csibm1163": "cp1163",
+  "maccroatian": {
+    "type": "_sbcs",
+    "chars": "ÄÅÇÉÑÖÜáàâäãåçéèêëíìîïñóòôöõúùûü†°¢£§•¶ß®Š™´¨≠ŽØ∞±≤≥∆µ∂∑∏š∫ªºΩžø¿¡¬√ƒ≈Ć«Č… ÀÃÕŒœĐ—“”‘’÷◊�©⁄¤‹›Æ»–·‚„‰ÂćÁčÈÍÎÏÌÓÔđÒÚÛÙıˆ˜¯πË˚¸Êæˇ"
+  },
+  "maccyrillic": {
+    "type": "_sbcs",
+    "chars": "АБВГДЕЖЗИЙКЛМНОПРСТУФХЦЧШЩЪЫЬЭЮЯ†°¢£§•¶І®©™Ђђ≠Ѓѓ∞±≤≥іµ∂ЈЄєЇїЉљЊњјЅ¬√ƒ≈∆«»… ЋћЌќѕ–—“”‘’÷„ЎўЏџ№Ёёяабвгдежзийклмнопрстуфхцчшщъыьэю¤"
+  },
+  "macgreek": {
+    "type": "_sbcs",
+    "chars": "Ĺ²É³ÖÜ΅àâä΄¨çéèê룙î‰ôö¦­ùûü†ΓΔΘΛΞΠß®©ΣΪ§≠°·Α±≤≥¥ΒΕΖΗΙΚΜΦΫΨΩάΝ¬ΟΡ≈Τ«»… ΥΧΆΈœ–―“”‘’÷ΉΊΌΎέήίόΏύαβψδεφγηιξκλμνοπώρστθωςχυζϊϋΐΰ�"
+  },
+  "maciceland": {
+    "type": "_sbcs",
+    "chars": "ÄÅÇÉÑÖÜáàâäãåçéèêëíìîïñóòôöõúùûüÝ°¢£§•¶ß®©™´¨≠ÆØ∞±≤≥¥µ∂∑∏π∫ªºΩæø¿¡¬√ƒ≈∆«»… ÀÃÕŒœ–—“”‘’÷◊ÿŸ⁄¤ÐðÞþý·‚„‰ÂÊÁËÈÍÎÏÌÓÔ�ÒÚÛÙıˆ˜¯˘˙˚¸˝˛ˇ"
+  },
+  "macroman": {
+    "type": "_sbcs",
+    "chars": "ÄÅÇÉÑÖÜáàâäãåçéèêëíìîïñóòôöõúùûü†°¢£§•¶ß®©™´¨≠ÆØ∞±≤≥¥µ∂∑∏π∫ªºΩæø¿¡¬√ƒ≈∆«»… ÀÃÕŒœ–—“”‘’÷◊ÿŸ⁄¤‹›fifl‡·‚„‰ÂÊÁËÈÍÎÏÌÓÔ�ÒÚÛÙıˆ˜¯˘˙˚¸˝˛ˇ"
+  },
+  "macromania": {
+    "type": "_sbcs",
+    "chars": "ÄÅÇÉÑÖÜáàâäãåçéèêëíìîïñóòôöõúùûü†°¢£§•¶ß®©™´¨≠ĂŞ∞±≤≥¥µ∂∑∏π∫ªºΩăş¿¡¬√ƒ≈∆«»… ÀÃÕŒœ–—“”‘’÷◊ÿŸ⁄¤‹›Ţţ‡·‚„‰ÂÊÁËÈÍÎÏÌÓÔ�ÒÚÛÙıˆ˜¯˘˙˚¸˝˛ˇ"
+  },
+  "macthai": {
+    "type": "_sbcs",
+    "chars": "«»…“”�•‘’� กขฃคฅฆงจฉชซฌญฎฏฐฑฒณดตถทธนบปผฝพฟภมยรฤลฦวศษสหฬอฮฯะัาำิีึืฺุู​–—฿เแโใไๅๆ็่้๊๋์ํ™๏๐๑๒๓๔๕๖๗๘๙®©����"
+  },
+  "macturkish": {
+    "type": "_sbcs",
+    "chars": "ÄÅÇÉÑÖÜáàâäãåçéèêëíìîïñóòôöõúùûü†°¢£§•¶ß®©™´¨≠ÆØ∞±≤≥¥µ∂∑∏π∫ªºΩæø¿¡¬√ƒ≈∆«»… ÀÃÕŒœ–—“”‘’÷◊ÿŸĞğİıŞş‡·‚„‰ÂÊÁËÈÍÎÏÌÓÔ�ÒÚÛÙ�ˆ˜¯˘˙˚¸˝˛ˇ"
+  },
+  "macukraine": {
+    "type": "_sbcs",
+    "chars": "АБВГДЕЖЗИЙКЛМНОПРСТУФХЦЧШЩЪЫЬЭЮЯ†°Ґ£§•¶І®©™Ђђ≠Ѓѓ∞±≤≥іµґЈЄєЇїЉљЊњјЅ¬√ƒ≈∆«»… ЋћЌќѕ–—“”‘’÷„ЎўЏџ№Ёёяабвгдежзийклмнопрстуфхцчшщъыьэю¤"
+  },
+  "koi8r": {
+    "type": "_sbcs",
+    "chars": "─│┌┐└┘├┤┬┴┼▀▄█▌▐░▒▓⌠■∙√≈≤≥ ⌡°²·÷═║╒ё╓╔╕╖╗╘╙╚╛╜╝╞╟╠╡Ё╢╣╤╥╦╧╨╩╪╫╬©юабцдефгхийклмнопярстужвьызшэщчъЮАБЦДЕФГХИЙКЛМНОПЯРСТУЖВЬЫЗШЭЩЧЪ"
+  },
+  "koi8u": {
+    "type": "_sbcs",
+    "chars": "─│┌┐└┘├┤┬┴┼▀▄█▌▐░▒▓⌠■∙√≈≤≥ ⌡°²·÷═║╒ёє╔ії╗╘╙╚╛ґ╝╞╟╠╡ЁЄ╣ІЇ╦╧╨╩╪Ґ╬©юабцдефгхийклмнопярстужвьызшэщчъЮАБЦДЕФГХИЙКЛМНОПЯРСТУЖВЬЫЗШЭЩЧЪ"
+  },
+  "koi8ru": {
+    "type": "_sbcs",
+    "chars": "─│┌┐└┘├┤┬┴┼▀▄█▌▐░▒▓⌠■∙√≈≤≥ ⌡°²·÷═║╒ёє╔ії╗╘╙╚╛ґў╞╟╠╡ЁЄ╣ІЇ╦╧╨╩╪ҐЎ©юабцдефгхийклмнопярстужвьызшэщчъЮАБЦДЕФГХИЙКЛМНОПЯРСТУЖВЬЫЗШЭЩЧЪ"
+  },
+  "koi8t": {
+    "type": "_sbcs",
+    "chars": "қғ‚Ғ„…†‡�‰ҳ‹ҲҷҶ�Қ‘’“”•–—�™�›�����ӯӮё¤ӣ¦§���«¬­®�°±²Ё�Ӣ¶·�№�»���©юабцдефгхийклмнопярстужвьызшэщчъЮАБЦДЕФГХИЙКЛМНОПЯРСТУЖВЬЫЗШЭЩЧЪ"
+  },
+  "armscii8": {
+    "type": "_sbcs",
+    "chars": "€‚ƒ„…†‡ˆ‰Š‹ŒŽ‘’“”•–—˜™š›œžŸ �և։)(»«—.՝,-֊…՜՛՞ԱաԲբԳգԴդԵեԶզԷէԸըԹթԺժԻիԼլԽխԾծԿկՀհՁձՂղՃճՄմՅյՆնՇշՈոՉչՊպՋջՌռՍսՎվՏտՐրՑցՒւՓփՔքՕօՖֆ՚�"
+  },
+  "rk1048": {
+    "type": "_sbcs",
+    "chars": "ЂЃ‚ѓ„…†‡€‰Љ‹ЊҚҺЏђ‘’“”•–—�™љ›њқһџ ҰұӘ¤Ө¦§Ё©Ғ«¬­®Ү°±Ііөµ¶·ё№ғ»әҢңүАБВГДЕЖЗИЙКЛМНОПРСТУФХЦЧШЩЪЫЬЭЮЯабвгдежзийклмнопрстуфхцчшщъыьэюя"
+  },
+  "tcvn": {
+    "type": "_sbcs",
+    "chars": "\u0000ÚỤ\u0003ỪỬỮ\u0007\b\t\n\u000b\f\r\u000e\u000f\u0010ỨỰỲỶỸÝỴ\u0018\u0019\u001a\u001b\u001c\u001d\u001e\u001f !\"#$%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\\]^_`abcdefghijklmnopqrstuvwxyz{|}~ÀẢÃÁẠẶẬÈẺẼÉẸỆÌỈĨÍỊÒỎÕÓỌỘỜỞỠỚỢÙỦŨ ĂÂÊÔƠƯĐăâêôơưđẶ̀̀̉̃́àảãáạẲằẳẵắẴẮẦẨẪẤỀặầẩẫấậèỂẻẽéẹềểễếệìỉỄẾỒĩíịòỔỏõóọồổỗốộờởỡớợùỖủũúụừửữứựỳỷỹýỵỐ"
+  },
+  "georgianacademy": {
+    "type": "_sbcs",
+    "chars": "€‚ƒ„…†‡ˆ‰Š‹ŒŽ‘’“”•–—˜™š›œžŸ ¡¢£¤¥¦§¨©ª«¬­®¯°±²³´µ¶·¸¹º»¼½¾¿აბგდევზთიკლმნოპჟრსტუფქღყშჩცძწჭხჯჰჱჲჳჴჵჶçèéêëìíîïðñòóôõö÷øùúûüýþÿ"
+  },
+  "georgianps": {
+    "type": "_sbcs",
+    "chars": "€‚ƒ„…†‡ˆ‰Š‹ŒŽ‘’“”•–—˜™š›œžŸ ¡¢£¤¥¦§¨©ª«¬­®¯°±²³´µ¶·¸¹º»¼½¾¿აბგდევზჱთიკლმნჲოპჟრსტჳუფქღყშჩცძწჭხჴჯჰჵæçèéêëìíîïðñòóôõö÷øùúûüýþÿ"
+  },
+  "pt154": {
+    "type": "_sbcs",
+    "chars": "ҖҒӮғ„…ҶҮҲүҠӢҢҚҺҸҗ‘’“”•–—ҳҷҡӣңқһҹ ЎўЈӨҘҰ§Ё©Ә«¬ӯ®Ҝ°ұІіҙө¶·ё№ә»јҪҫҝАБВГДЕЖЗИЙКЛМНОПРСТУФХЦЧШЩЪЫЬЭЮЯабвгдежзийклмнопрстуфхцчшщъыьэюя"
+  },
+  "viscii": {
+    "type": "_sbcs",
+    "chars": "\u0000\u0001Ẳ\u0003\u0004ẴẪ\u0007\b\t\n\u000b\f\r\u000e\u000f\u0010\u0011\u0012\u0013Ỷ\u0015\u0016\u0017\u0018Ỹ\u001a\u001b\u001c\u001dỴ\u001f !\"#$%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\\]^_`abcdefghijklmnopqrstuvwxyz{|}~ẠẮẰẶẤẦẨẬẼẸẾỀỂỄỆỐỒỔỖỘỢỚỜỞỊỎỌỈỦŨỤỲÕắằặấầẩậẽẹếềểễệốồổỗỠƠộờởịỰỨỪỬơớƯÀÁÂÃẢĂẳẵÈÉÊẺÌÍĨỳĐứÒÓÔạỷừửÙÚỹỵÝỡưàáâãảăữẫèéêẻìíĩỉđựòóôõỏọụùúũủýợỮ"
+  },
+  "iso646cn": {
+    "type": "_sbcs",
+    "chars": "\u0000\u0001\u0002\u0003\u0004\u0005\u0006\u0007\b\t\n\u000b\f\r\u000e\u000f\u0010\u0011\u0012\u0013\u0014\u0015\u0016\u0017\u0018\u0019\u001a\u001b\u001c\u001d\u001e\u001f !\"#¥%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\\]^_`abcdefghijklmnopqrstuvwxyz{|}‾��������������������������������������������������������������������������������������������������������������������������������"
+  },
+  "iso646jp": {
+    "type": "_sbcs",
+    "chars": "\u0000\u0001\u0002\u0003\u0004\u0005\u0006\u0007\b\t\n\u000b\f\r\u000e\u000f\u0010\u0011\u0012\u0013\u0014\u0015\u0016\u0017\u0018\u0019\u001a\u001b\u001c\u001d\u001e\u001f !\"#$%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[¥]^_`abcdefghijklmnopqrstuvwxyz{|}‾��������������������������������������������������������������������������������������������������������������������������������"
+  },
+  "hproman8": {
+    "type": "_sbcs",
+    "chars": "€‚ƒ„…†‡ˆ‰Š‹ŒŽ‘’“”•–—˜™š›œžŸ ÀÂÈÊËÎÏ´ˋˆ¨˜ÙÛ₤¯Ýý°ÇçÑñ¡¿¤£¥§ƒ¢âêôûáéóúàèòùäëöüÅîØÆåíøæÄìÖÜÉïßÔÁÃãÐðÍÌÓÒÕõŠšÚŸÿÞþ·µ¶¾—¼½ªº«■»±�"
+  },
+  "macintosh": {
+    "type": "_sbcs",
+    "chars": "ÄÅÇÉÑÖÜáàâäãåçéèêëíìîïñóòôöõúùûü†°¢£§•¶ß®©™´¨≠ÆØ∞±≤≥¥µ∂∑∏π∫ªºΩæø¿¡¬√ƒ≈∆«»… ÀÃÕŒœ–—“”‘’÷◊ÿŸ⁄¤‹›fifl‡·‚„‰ÂÊÁËÈÍÎÏÌÓÔ�ÒÚÛÙıˆ˜¯˘˙˚¸˝˛ˇ"
+  },
+  "ascii": {
+    "type": "_sbcs",
+    "chars": "��������������������������������������������������������������������������������������������������������������������������������"
+  },
+  "tis620": {
+    "type": "_sbcs",
+    "chars": "���������������������������������กขฃคฅฆงจฉชซฌญฎฏฐฑฒณดตถทธนบปผฝพฟภมยรฤลฦวศษสหฬอฮฯะัาำิีึืฺุู����฿เแโใไๅๆ็่้๊๋์ํ๎๏๐๑๒๓๔๕๖๗๘๙๚๛����"
+  }
+}
\ No newline at end of file
diff --git a/backend/node_modules/iconv-lite/encodings/sbcs-data.js b/backend/node_modules/iconv-lite/encodings/sbcs-data.js
new file mode 100644
index 0000000..066f904
--- /dev/null
+++ b/backend/node_modules/iconv-lite/encodings/sbcs-data.js
@@ -0,0 +1,179 @@
+"use strict";
+
+// Manually added data to be used by sbcs codec in addition to generated one.
+
+module.exports = {
+    // Not supported by iconv, not sure why.
+    "10029": "maccenteuro",
+    "maccenteuro": {
+        "type": "_sbcs",
+        "chars": "ÄĀāÉĄÖÜáąČäčĆć鏟ĎíďĒēĖóėôöõúĚěü†°Ę£§•¶ß®©™ę¨≠ģĮįĪ≤≥īĶ∂∑łĻļĽľĹĺŅņѬ√ńŇ∆«»… ňŐÕőŌ–—“”‘’÷◊ōŔŕŘ‹›řŖŗŠ‚„šŚśÁŤťÍŽžŪÓÔūŮÚůŰűŲųÝýķŻŁżĢˇ"
+    },
+
+    "808": "cp808",
+    "ibm808": "cp808",
+    "cp808": {
+        "type": "_sbcs",
+        "chars": "АБВГДЕЖЗИЙКЛМНОПРСТУФХЦЧШЩЪЫЬЭЮЯабвгдежзийклмноп░▒▓│┤╡╢╖╕╣║╗╝╜╛┐└┴┬├─┼╞╟╚╔╩╦╠═╬╧╨╤╥╙╘╒╓╫╪┘┌█▄▌▐▀рстуфхцчшщъыьэюяЁёЄєЇїЎў°∙·√№€■ "
+    },
+
+    "mik": {
+        "type": "_sbcs",
+        "chars": "АБВГДЕЖЗИЙКЛМНОПРСТУФХЦЧШЩЪЫЬЭЮЯабвгдежзийклмнопрстуфхцчшщъыьэюя└┴┬├─┼╣║╚╔╩╦╠═╬┐░▒▓│┤№§╗╝┘┌█▄▌▐▀αßΓπΣσµτΦΘΩδ∞φε∩≡±≥≤⌠⌡÷≈°∙·√ⁿ²■ "
+    },
+
+    "cp720": {
+        "type": "_sbcs",
+        "chars": "\x80\x81éâ\x84à\x86çêëèïî\x8d\x8e\x8f\x90\u0651\u0652ô¤ـûùءآأؤ£إئابةتثجحخدذرزسشص«»░▒▓│┤╡╢╖╕╣║╗╝╜╛┐└┴┬├─┼╞╟╚╔╩╦╠═╬╧╨╤╥╙╘╒╓╫╪┘┌█▄▌▐▀ضطظعغفµقكلمنهوىي≡\u064b\u064c\u064d\u064e\u064f\u0650≈°∙·√ⁿ²■\u00a0"
+    },
+
+    // Aliases of generated encodings.
+    "ascii8bit": "ascii",
+    "usascii": "ascii",
+    "ansix34": "ascii",
+    "ansix341968": "ascii",
+    "ansix341986": "ascii",
+    "csascii": "ascii",
+    "cp367": "ascii",
+    "ibm367": "ascii",
+    "isoir6": "ascii",
+    "iso646us": "ascii",
+    "iso646irv": "ascii",
+    "us": "ascii",
+
+    "latin1": "iso88591",
+    "latin2": "iso88592",
+    "latin3": "iso88593",
+    "latin4": "iso88594",
+    "latin5": "iso88599",
+    "latin6": "iso885910",
+    "latin7": "iso885913",
+    "latin8": "iso885914",
+    "latin9": "iso885915",
+    "latin10": "iso885916",
+
+    "csisolatin1": "iso88591",
+    "csisolatin2": "iso88592",
+    "csisolatin3": "iso88593",
+    "csisolatin4": "iso88594",
+    "csisolatincyrillic": "iso88595",
+    "csisolatinarabic": "iso88596",
+    "csisolatingreek" : "iso88597",
+    "csisolatinhebrew": "iso88598",
+    "csisolatin5": "iso88599",
+    "csisolatin6": "iso885910",
+
+    "l1": "iso88591",
+    "l2": "iso88592",
+    "l3": "iso88593",
+    "l4": "iso88594",
+    "l5": "iso88599",
+    "l6": "iso885910",
+    "l7": "iso885913",
+    "l8": "iso885914",
+    "l9": "iso885915",
+    "l10": "iso885916",
+
+    "isoir14": "iso646jp",
+    "isoir57": "iso646cn",
+    "isoir100": "iso88591",
+    "isoir101": "iso88592",
+    "isoir109": "iso88593",
+    "isoir110": "iso88594",
+    "isoir144": "iso88595",
+    "isoir127": "iso88596",
+    "isoir126": "iso88597",
+    "isoir138": "iso88598",
+    "isoir148": "iso88599",
+    "isoir157": "iso885910",
+    "isoir166": "tis620",
+    "isoir179": "iso885913",
+    "isoir199": "iso885914",
+    "isoir203": "iso885915",
+    "isoir226": "iso885916",
+
+    "cp819": "iso88591",
+    "ibm819": "iso88591",
+
+    "cyrillic": "iso88595",
+
+    "arabic": "iso88596",
+    "arabic8": "iso88596",
+    "ecma114": "iso88596",
+    "asmo708": "iso88596",
+
+    "greek" : "iso88597",
+    "greek8" : "iso88597",
+    "ecma118" : "iso88597",
+    "elot928" : "iso88597",
+
+    "hebrew": "iso88598",
+    "hebrew8": "iso88598",
+
+    "turkish": "iso88599",
+    "turkish8": "iso88599",
+
+    "thai": "iso885911",
+    "thai8": "iso885911",
+
+    "celtic": "iso885914",
+    "celtic8": "iso885914",
+    "isoceltic": "iso885914",
+
+    "tis6200": "tis620",
+    "tis62025291": "tis620",
+    "tis62025330": "tis620",
+
+    "10000": "macroman",
+    "10006": "macgreek",
+    "10007": "maccyrillic",
+    "10079": "maciceland",
+    "10081": "macturkish",
+
+    "cspc8codepage437": "cp437",
+    "cspc775baltic": "cp775",
+    "cspc850multilingual": "cp850",
+    "cspcp852": "cp852",
+    "cspc862latinhebrew": "cp862",
+    "cpgr": "cp869",
+
+    "msee": "cp1250",
+    "mscyrl": "cp1251",
+    "msansi": "cp1252",
+    "msgreek": "cp1253",
+    "msturk": "cp1254",
+    "mshebr": "cp1255",
+    "msarab": "cp1256",
+    "winbaltrim": "cp1257",
+
+    "cp20866": "koi8r",
+    "20866": "koi8r",
+    "ibm878": "koi8r",
+    "cskoi8r": "koi8r",
+
+    "cp21866": "koi8u",
+    "21866": "koi8u",
+    "ibm1168": "koi8u",
+
+    "strk10482002": "rk1048",
+
+    "tcvn5712": "tcvn",
+    "tcvn57121": "tcvn",
+
+    "gb198880": "iso646cn",
+    "cn": "iso646cn",
+
+    "csiso14jisc6220ro": "iso646jp",
+    "jisc62201969ro": "iso646jp",
+    "jp": "iso646jp",
+
+    "cshproman8": "hproman8",
+    "r8": "hproman8",
+    "roman8": "hproman8",
+    "xroman8": "hproman8",
+    "ibm1051": "hproman8",
+
+    "mac": "macintosh",
+    "csmacintosh": "macintosh",
+};
+
diff --git a/backend/node_modules/iconv-lite/encodings/tables/big5-added.json b/backend/node_modules/iconv-lite/encodings/tables/big5-added.json
new file mode 100644
index 0000000..3c3d3c2
--- /dev/null
+++ b/backend/node_modules/iconv-lite/encodings/tables/big5-added.json
@@ -0,0 +1,122 @@
+[
+["8740","䏰䰲䘃䖦䕸𧉧䵷䖳𧲱䳢𧳅㮕䜶䝄䱇䱀𤊿𣘗𧍒𦺋𧃒䱗𪍑䝏䗚䲅𧱬䴇䪤䚡𦬣爥𥩔𡩣𣸆𣽡晍囻"],
+["8767","綕夝𨮹㷴霴𧯯寛𡵞媤㘥𩺰嫑宷峼杮薓𩥅瑡璝㡵𡵓𣚞𦀡㻬"],
+["87a1","𥣞㫵竼龗𤅡𨤍𣇪𠪊𣉞䌊蒄龖鐯䤰蘓墖靊鈘秐稲晠権袝瑌篅枂稬剏遆㓦珄𥶹瓆鿇垳䤯呌䄱𣚎堘穲𧭥讏䚮𦺈䆁𥶙箮𢒼鿈𢓁𢓉𢓌鿉蔄𣖻䂴鿊䓡𪷿拁灮鿋"],
+["8840","㇀",4,"𠄌㇅𠃑𠃍㇆㇇𠃋𡿨㇈𠃊㇉㇊㇋㇌𠄎㇍㇎ĀÁǍÀĒÉĚÈŌÓǑÒ࿿Ê̄Ế࿿Ê̌ỀÊāáǎàɑēéěèīíǐìōóǒòūúǔùǖǘǚ"],
+["88a1","ǜü࿿ê̄ế࿿ê̌ềêɡ⏚⏛"],
+["8940","𪎩𡅅"],
+["8943","攊"],
+["8946","丽滝鵎釟"],
+["894c","𧜵撑会伨侨兖兴农凤务动医华发变团声处备夲头学实実岚庆总斉柾栄桥济炼电纤纬纺织经统缆缷艺苏药视设询车轧轮"],
+["89a1","琑糼緍楆竉刧"],
+["89ab","醌碸酞肼"],
+["89b0","贋胶𠧧"],
+["89b5","肟黇䳍鷉鸌䰾𩷶𧀎鸊𪄳㗁"],
+["89c1","溚舾甙"],
+["89c5","䤑马骏龙禇𨑬𡷊𠗐𢫦两亁亀亇亿仫伷㑌侽㹈倃傈㑽㒓㒥円夅凛凼刅争剹劐匧㗇厩㕑厰㕓参吣㕭㕲㚁咓咣咴咹哐哯唘唣唨㖘唿㖥㖿嗗㗅"],
+["8a40","𧶄唥"],
+["8a43","𠱂𠴕𥄫喐𢳆㧬𠍁蹆𤶸𩓥䁓𨂾睺𢰸㨴䟕𨅝𦧲𤷪擝𠵼𠾴𠳕𡃴撍蹾𠺖𠰋𠽤𢲩𨉖𤓓"],
+["8a64","𠵆𩩍𨃩䟴𤺧𢳂骲㩧𩗴㿭㔆𥋇𩟔𧣈𢵄鵮頕"],
+["8a76","䏙𦂥撴哣𢵌𢯊𡁷㧻𡁯"],
+["8aa1","𦛚𦜖𧦠擪𥁒𠱃蹨𢆡𨭌𠜱"],
+["8aac","䠋𠆩㿺塳𢶍"],
+["8ab2","𤗈𠓼𦂗𠽌𠶖啹䂻䎺"],
+["8abb","䪴𢩦𡂝膪飵𠶜捹㧾𢝵跀嚡摼㹃"],
+["8ac9","𪘁𠸉𢫏𢳉"],
+["8ace","𡃈𣧂㦒㨆𨊛㕸𥹉𢃇噒𠼱𢲲𩜠㒼氽𤸻"],
+["8adf","𧕴𢺋𢈈𪙛𨳍𠹺𠰴𦠜羓𡃏𢠃𢤹㗻𥇣𠺌𠾍𠺪㾓𠼰𠵇𡅏𠹌"],
+["8af6","𠺫𠮩𠵈𡃀𡄽㿹𢚖搲𠾭"],
+["8b40","𣏴𧘹𢯎𠵾𠵿𢱑𢱕㨘𠺘𡃇𠼮𪘲𦭐𨳒𨶙𨳊閪哌苄喹"],
+["8b55","𩻃鰦骶𧝞𢷮煀腭胬尜𦕲脴㞗卟𨂽醶𠻺𠸏𠹷𠻻㗝𤷫㘉𠳖嚯𢞵𡃉𠸐𠹸𡁸𡅈𨈇𡑕𠹹𤹐𢶤婔𡀝𡀞𡃵𡃶垜𠸑"],
+["8ba1","𧚔𨋍𠾵𠹻𥅾㜃𠾶𡆀𥋘𪊽𤧚𡠺𤅷𨉼墙剨㘚𥜽箲孨䠀䬬鼧䧧鰟鮍𥭴𣄽嗻㗲嚉丨夂𡯁屮靑𠂆乛亻㔾尣彑忄㣺扌攵歺氵氺灬爫丬犭𤣩罒礻糹罓𦉪㓁"],
+["8bde","𦍋耂肀𦘒𦥑卝衤见𧢲讠贝钅镸长门𨸏韦页风飞饣𩠐鱼鸟黄歯龜丷𠂇阝户钢"],
+["8c40","倻淾𩱳龦㷉袏𤅎灷峵䬠𥇍㕙𥴰愢𨨲辧釶熑朙玺𣊁𪄇㲋𡦀䬐磤琂冮𨜏䀉橣𪊺䈣蘏𠩯稪𩥇𨫪靕灍匤𢁾鏴盙𨧣龧矝亣俰傼丯众龨吴綋墒壐𡶶庒庙忂𢜒斋"],
+["8ca1","𣏹椙橃𣱣泿"],
+["8ca7","爀𤔅玌㻛𤨓嬕璹讃𥲤𥚕窓篬糃繬苸薗龩袐龪躹龫迏蕟駠鈡龬𨶹𡐿䁱䊢娚"],
+["8cc9","顨杫䉶圽"],
+["8cce","藖𤥻芿𧄍䲁𦵴嵻𦬕𦾾龭龮宖龯曧繛湗秊㶈䓃𣉖𢞖䎚䔶"],
+["8ce6","峕𣬚諹屸㴒𣕑嵸龲煗䕘𤃬𡸣䱷㥸㑊𠆤𦱁諌侴𠈹妿腬顖𩣺弻"],
+["8d40","𠮟"],
+["8d42","𢇁𨥭䄂䚻𩁹㼇龳𪆵䃸㟖䛷𦱆䅼𨚲𧏿䕭㣔𥒚䕡䔛䶉䱻䵶䗪㿈𤬏㙡䓞䒽䇭崾嵈嵖㷼㠏嶤嶹㠠㠸幂庽弥徃㤈㤔㤿㥍惗愽峥㦉憷憹懏㦸戬抐拥挘㧸嚱"],
+["8da1","㨃揢揻搇摚㩋擀崕嘡龟㪗斆㪽旿晓㫲暒㬢朖㭂枤栀㭘桊梄㭲㭱㭻椉楃牜楤榟榅㮼槖㯝橥橴橱檂㯬檙㯲檫檵櫔櫶殁毁毪汵沪㳋洂洆洦涁㳯涤涱渕渘温溆𨧀溻滢滚齿滨滩漤漴㵆𣽁澁澾㵪㵵熷岙㶊瀬㶑灐灔灯灿炉𠌥䏁㗱𠻘"],
+["8e40","𣻗垾𦻓焾𥟠㙎榢𨯩孴穉𥣡𩓙穥穽𥦬窻窰竂竃燑𦒍䇊竚竝竪䇯咲𥰁笋筕笩𥌎𥳾箢筯莜𥮴𦱿篐萡箒箸𥴠㶭𥱥蒒篺簆簵𥳁籄粃𤢂粦晽𤕸糉糇糦籴糳糵糎"],
+["8ea1","繧䔝𦹄絝𦻖璍綉綫焵綳緒𤁗𦀩緤㴓緵𡟹緥𨍭縝𦄡𦅚繮纒䌫鑬縧罀罁罇礶𦋐駡羗𦍑羣𡙡𠁨䕜𣝦䔃𨌺翺𦒉者耈耝耨耯𪂇𦳃耻耼聡𢜔䦉𦘦𣷣𦛨朥肧𨩈脇脚墰𢛶汿𦒘𤾸擧𡒊舘𡡞橓𤩥𤪕䑺舩𠬍𦩒𣵾俹𡓽蓢荢𦬊𤦧𣔰𡝳𣷸芪椛芳䇛"],
+["8f40","蕋苐茚𠸖𡞴㛁𣅽𣕚艻苢茘𣺋𦶣𦬅𦮗𣗎㶿茝嗬莅䔋𦶥莬菁菓㑾𦻔橗蕚㒖𦹂𢻯葘𥯤葱㷓䓤檧葊𣲵祘蒨𦮖𦹷𦹃蓞萏莑䒠蒓蓤𥲑䉀𥳀䕃蔴嫲𦺙䔧蕳䔖枿蘖"],
+["8fa1","𨘥𨘻藁𧂈蘂𡖂𧃍䕫䕪蘨㙈𡢢号𧎚虾蝱𪃸蟮𢰧螱蟚蠏噡虬桖䘏衅衆𧗠𣶹𧗤衞袜䙛袴袵揁装睷𧜏覇覊覦覩覧覼𨨥觧𧤤𧪽誜瞓釾誐𧩙竩𧬺𣾏䜓𧬸煼謌謟𥐰𥕥謿譌譍誩𤩺讐讛誯𡛟䘕衏貛𧵔𧶏貫㜥𧵓賖𧶘𧶽贒贃𡤐賛灜贑𤳉㻐起"],
+["9040","趩𨀂𡀔𤦊㭼𨆼𧄌竧躭躶軃鋔輙輭𨍥𨐒辥錃𪊟𠩐辳䤪𨧞𨔽𣶻廸𣉢迹𪀔𨚼𨔁𢌥㦀𦻗逷𨔼𧪾遡𨕬𨘋邨𨜓郄𨛦邮都酧㫰醩釄粬𨤳𡺉鈎沟鉁鉢𥖹銹𨫆𣲛𨬌𥗛"],
+["90a1","𠴱錬鍫𨫡𨯫炏嫃𨫢𨫥䥥鉄𨯬𨰹𨯿鍳鑛躼閅閦鐦閠濶䊹𢙺𨛘𡉼𣸮䧟氜陻隖䅬隣𦻕懚隶磵𨫠隽双䦡𦲸𠉴𦐐𩂯𩃥𤫑𡤕𣌊霱虂霶䨏䔽䖅𤫩灵孁霛靜𩇕靗孊𩇫靟鐥僐𣂷𣂼鞉鞟鞱鞾韀韒韠𥑬韮琜𩐳響韵𩐝𧥺䫑頴頳顋顦㬎𧅵㵑𠘰𤅜"],
+["9140","𥜆飊颷飈飇䫿𦴧𡛓喰飡飦飬鍸餹𤨩䭲𩡗𩤅駵騌騻騐驘𥜥㛄𩂱𩯕髠髢𩬅髴䰎鬔鬭𨘀倴鬴𦦨㣃𣁽魐魀𩴾婅𡡣鮎𤉋鰂鯿鰌𩹨鷔𩾷𪆒𪆫𪃡𪄣𪇟鵾鶃𪄴鸎梈"],
+["91a1","鷄𢅛𪆓𪈠𡤻𪈳鴹𪂹𪊴麐麕麞麢䴴麪麯𤍤黁㭠㧥㴝伲㞾𨰫鼂鼈䮖鐤𦶢鼗鼖鼹嚟嚊齅馸𩂋韲葿齢齩竜龎爖䮾𤥵𤦻煷𤧸𤍈𤩑玞𨯚𡣺禟𨥾𨸶鍩鏳𨩄鋬鎁鏋𨥬𤒹爗㻫睲穃烐𤑳𤏸煾𡟯炣𡢾𣖙㻇𡢅𥐯𡟸㜢𡛻𡠹㛡𡝴𡣑𥽋㜣𡛀坛𤨥𡏾𡊨"],
+["9240","𡏆𡒶蔃𣚦蔃葕𤦔𧅥𣸱𥕜𣻻𧁒䓴𣛮𩦝𦼦柹㜳㰕㷧塬𡤢栐䁗𣜿𤃡𤂋𤄏𦰡哋嚞𦚱嚒𠿟𠮨𠸍鏆𨬓鎜仸儫㠙𤐶亼𠑥𠍿佋侊𥙑婨𠆫𠏋㦙𠌊𠐔㐵伩𠋀𨺳𠉵諚𠈌亘"],
+["92a1","働儍侢伃𤨎𣺊佂倮偬傁俌俥偘僼兙兛兝兞湶𣖕𣸹𣺿浲𡢄𣺉冨凃𠗠䓝𠒣𠒒𠒑赺𨪜𠜎剙劤𠡳勡鍮䙺熌𤎌𠰠𤦬𡃤槑𠸝瑹㻞璙琔瑖玘䮎𤪼𤂍叐㖄爏𤃉喴𠍅响𠯆圝鉝雴鍦埝垍坿㘾壋媙𨩆𡛺𡝯𡜐娬妸銏婾嫏娒𥥆𡧳𡡡𤊕㛵洅瑃娡𥺃"],
+["9340","媁𨯗𠐓鏠璌𡌃焅䥲鐈𨧻鎽㞠尞岞幞幈𡦖𡥼𣫮廍孏𡤃𡤄㜁𡢠㛝𡛾㛓脪𨩇𡶺𣑲𨦨弌弎𡤧𡞫婫𡜻孄蘔𧗽衠恾𢡠𢘫忛㺸𢖯𢖾𩂈𦽳懀𠀾𠁆𢘛憙憘恵𢲛𢴇𤛔𩅍"],
+["93a1","摱𤙥𢭪㨩𢬢𣑐𩣪𢹸挷𪑛撶挱揑𤧣𢵧护𢲡搻敫楲㯴𣂎𣊭𤦉𣊫唍𣋠𡣙𩐿曎𣊉𣆳㫠䆐𥖄𨬢𥖏𡛼𥕛𥐥磮𣄃𡠪𣈴㑤𣈏𣆂𤋉暎𦴤晫䮓昰𧡰𡷫晣𣋒𣋡昞𥡲㣑𣠺𣞼㮙𣞢𣏾瓐㮖枏𤘪梶栞㯄檾㡣𣟕𤒇樳橒櫉欅𡤒攑梘橌㯗橺歗𣿀𣲚鎠鋲𨯪𨫋"],
+["9440","銉𨀞𨧜鑧涥漋𤧬浧𣽿㶏渄𤀼娽渊塇洤硂焻𤌚𤉶烱牐犇犔𤞏𤜥兹𤪤𠗫瑺𣻸𣙟𤩊𤤗𥿡㼆㺱𤫟𨰣𣼵悧㻳瓌琼鎇琷䒟𦷪䕑疃㽣𤳙𤴆㽘畕癳𪗆㬙瑨𨫌𤦫𤦎㫻"],
+["94a1","㷍𤩎㻿𤧅𤣳釺圲鍂𨫣𡡤僟𥈡𥇧睸𣈲眎眏睻𤚗𣞁㩞𤣰琸璛㺿𤪺𤫇䃈𤪖𦆮錇𥖁砞碍碈磒珐祙𧝁𥛣䄎禛蒖禥樭𣻺稺秴䅮𡛦䄲鈵秱𠵌𤦌𠊙𣶺𡝮㖗啫㕰㚪𠇔𠰍竢婙𢛵𥪯𥪜娍𠉛磰娪𥯆竾䇹籝籭䈑𥮳𥺼𥺦糍𤧹𡞰粎籼粮檲緜縇緓罎𦉡"],
+["9540","𦅜𧭈綗𥺂䉪𦭵𠤖柖𠁎𣗏埄𦐒𦏸𤥢翝笧𠠬𥫩𥵃笌𥸎駦虅驣樜𣐿㧢𤧷𦖭騟𦖠蒀𧄧𦳑䓪脷䐂胆脉腂𦞴飃𦩂艢艥𦩑葓𦶧蘐𧈛媆䅿𡡀嬫𡢡嫤𡣘蚠蜨𣶏蠭𧐢娂"],
+["95a1","衮佅袇袿裦襥襍𥚃襔𧞅𧞄𨯵𨯙𨮜𨧹㺭蒣䛵䛏㟲訽訜𩑈彍鈫𤊄旔焩烄𡡅鵭貟賩𧷜妚矃姰䍮㛔踪躧𤰉輰轊䋴汘澻𢌡䢛潹溋𡟚鯩㚵𤤯邻邗啱䤆醻鐄𨩋䁢𨫼鐧𨰝𨰻蓥訫閙閧閗閖𨴴瑅㻂𤣿𤩂𤏪㻧𣈥随𨻧𨹦𨹥㻌𤧭𤩸𣿮琒瑫㻼靁𩂰"],
+["9640","桇䨝𩂓𥟟靝鍨𨦉𨰦𨬯𦎾銺嬑譩䤼珹𤈛鞛靱餸𠼦巁𨯅𤪲頟𩓚鋶𩗗釥䓀𨭐𤩧𨭤飜𨩅㼀鈪䤥萔餻饍𧬆㷽馛䭯馪驜𨭥𥣈檏騡嫾騯𩣱䮐𩥈馼䮽䮗鍽塲𡌂堢𤦸"],
+["96a1","𡓨硄𢜟𣶸棅㵽鑘㤧慐𢞁𢥫愇鱏鱓鱻鰵鰐魿鯏𩸭鮟𪇵𪃾鴡䲮𤄄鸘䲰鴌𪆴𪃭𪃳𩤯鶥蒽𦸒𦿟𦮂藼䔳𦶤𦺄𦷰萠藮𦸀𣟗𦁤秢𣖜𣙀䤭𤧞㵢鏛銾鍈𠊿碹鉷鑍俤㑀遤𥕝砽硔碶硋𡝗𣇉𤥁㚚佲濚濙瀞瀞吔𤆵垻壳垊鴖埗焴㒯𤆬燫𦱀𤾗嬨𡞵𨩉"],
+["9740","愌嫎娋䊼𤒈㜬䭻𨧼鎻鎸𡣖𠼝葲𦳀𡐓𤋺𢰦𤏁妔𣶷𦝁綨𦅛𦂤𤦹𤦋𨧺鋥珢㻩璴𨭣𡢟㻡𤪳櫘珳珻㻖𤨾𤪔𡟙𤩦𠎧𡐤𤧥瑈𤤖炥𤥶銄珦鍟𠓾錱𨫎𨨖鎆𨯧𥗕䤵𨪂煫"],
+["97a1","𤥃𠳿嚤𠘚𠯫𠲸唂秄𡟺緾𡛂𤩐𡡒䔮鐁㜊𨫀𤦭妰𡢿𡢃𧒄媡㛢𣵛㚰鉟婹𨪁𡡢鍴㳍𠪴䪖㦊僴㵩㵌𡎜煵䋻𨈘渏𩃤䓫浗𧹏灧沯㳖𣿭𣸭渂漌㵯𠏵畑㚼㓈䚀㻚䡱姄鉮䤾轁𨰜𦯀堒埈㛖𡑒烾𤍢𤩱𢿣𡊰𢎽梹楧𡎘𣓥𧯴𣛟𨪃𣟖𣏺𤲟樚𣚭𦲷萾䓟䓎"],
+["9840","𦴦𦵑𦲂𦿞漗𧄉茽𡜺菭𦲀𧁓𡟛妉媂𡞳婡婱𡤅𤇼㜭姯𡜼㛇熎鎐暚𤊥婮娫𤊓樫𣻹𧜶𤑛𤋊焝𤉙𨧡侰𦴨峂𤓎𧹍𤎽樌𤉖𡌄炦焳𤏩㶥泟勇𤩏繥姫崯㷳彜𤩝𡟟綤萦"],
+["98a1","咅𣫺𣌀𠈔坾𠣕𠘙㿥𡾞𪊶瀃𩅛嵰玏糓𨩙𩐠俈翧狍猐𧫴猸猹𥛶獁獈㺩𧬘遬燵𤣲珡臶㻊県㻑沢国琙琞琟㻢㻰㻴㻺瓓㼎㽓畂畭畲疍㽼痈痜㿀癍㿗癴㿜発𤽜熈嘣覀塩䀝睃䀹条䁅㗛瞘䁪䁯属瞾矋売砘点砜䂨砹硇硑硦葈𥔵礳栃礲䄃"],
+["9940","䄉禑禙辻稆込䅧窑䆲窼艹䇄竏竛䇏両筢筬筻簒簛䉠䉺类粜䊌粸䊔糭输烀𠳏総緔緐緽羮羴犟䎗耠耥笹耮耱联㷌垴炠肷胩䏭脌猪脎脒畠脔䐁㬹腖腙腚"],
+["99a1","䐓堺腼膄䐥膓䐭膥埯臁臤艔䒏芦艶苊苘苿䒰荗险榊萅烵葤惣蒈䔄蒾蓡蓸蔐蔸蕒䔻蕯蕰藠䕷虲蚒蚲蛯际螋䘆䘗袮裿褤襇覑𧥧訩訸誔誴豑賔賲贜䞘塟跃䟭仮踺嗘坔蹱嗵躰䠷軎転軤軭軲辷迁迊迌逳駄䢭飠鈓䤞鈨鉘鉫銱銮銿"],
+["9a40","鋣鋫鋳鋴鋽鍃鎄鎭䥅䥑麿鐗匁鐝鐭鐾䥪鑔鑹锭関䦧间阳䧥枠䨤靀䨵鞲韂噔䫤惨颹䬙飱塄餎餙冴餜餷饂饝饢䭰駅䮝騼鬏窃魩鮁鯝鯱鯴䱭鰠㝯𡯂鵉鰺"],
+["9aa1","黾噐鶓鶽鷀鷼银辶鹻麬麱麽黆铜黢黱黸竈齄𠂔𠊷𠎠椚铃妬𠓗塀铁㞹𠗕𠘕𠙶𡚺块煳𠫂𠫍𠮿呪吆𠯋咞𠯻𠰻𠱓𠱥𠱼惧𠲍噺𠲵𠳝𠳭𠵯𠶲𠷈楕鰯螥𠸄𠸎𠻗𠾐𠼭𠹳尠𠾼帋𡁜𡁏𡁶朞𡁻𡂈𡂖㙇𡂿𡃓𡄯𡄻卤蒭𡋣𡍵𡌶讁𡕷𡘙𡟃𡟇乸炻𡠭𡥪"],
+["9b40","𡨭𡩅𡰪𡱰𡲬𡻈拃𡻕𡼕熘桕𢁅槩㛈𢉼𢏗𢏺𢜪𢡱𢥏苽𢥧𢦓𢫕覥𢫨辠𢬎鞸𢬿顇骽𢱌"],
+["9b62","𢲈𢲷𥯨𢴈𢴒𢶷𢶕𢹂𢽴𢿌𣀳𣁦𣌟𣏞徱晈暿𧩹𣕧𣗳爁𤦺矗𣘚𣜖纇𠍆墵朎"],
+["9ba1","椘𣪧𧙗𥿢𣸑𣺹𧗾𢂚䣐䪸𤄙𨪚𤋮𤌍𤀻𤌴𤎖𤩅𠗊凒𠘑妟𡺨㮾𣳿𤐄𤓖垈𤙴㦛𤜯𨗨𩧉㝢𢇃譞𨭎駖𤠒𤣻𤨕爉𤫀𠱸奥𤺥𤾆𠝹軚𥀬劏圿煱𥊙𥐙𣽊𤪧喼𥑆𥑮𦭒釔㑳𥔿𧘲𥕞䜘𥕢𥕦𥟇𤤿𥡝偦㓻𣏌惞𥤃䝼𨥈𥪮𥮉𥰆𡶐垡煑澶𦄂𧰒遖𦆲𤾚譢𦐂𦑊"],
+["9c40","嵛𦯷輶𦒄𡤜諪𤧶𦒈𣿯𦔒䯀𦖿𦚵𢜛鑥𥟡憕娧晉侻嚹𤔡𦛼乪𤤴陖涏𦲽㘘襷𦞙𦡮𦐑𦡞營𦣇筂𩃀𠨑𦤦鄄𦤹穅鷰𦧺騦𦨭㙟𦑩𠀡禃𦨴𦭛崬𣔙菏𦮝䛐𦲤画补𦶮墶"],
+["9ca1","㜜𢖍𧁋𧇍㱔𧊀𧊅銁𢅺𧊋錰𧋦𤧐氹钟𧑐𠻸蠧裵𢤦𨑳𡞱溸𤨪𡠠㦤㚹尐秣䔿暶𩲭𩢤襃𧟌𧡘囖䃟𡘊㦡𣜯𨃨𡏅熭荦𧧝𩆨婧䲷𧂯𨦫𧧽𧨊𧬋𧵦𤅺筃祾𨀉澵𪋟樃𨌘厢𦸇鎿栶靝𨅯𨀣𦦵𡏭𣈯𨁈嶅𨰰𨂃圕頣𨥉嶫𤦈斾槕叒𤪥𣾁㰑朶𨂐𨃴𨄮𡾡𨅏"],
+["9d40","𨆉𨆯𨈚𨌆𨌯𨎊㗊𨑨𨚪䣺揦𨥖砈鉕𨦸䏲𨧧䏟𨧨𨭆𨯔姸𨰉輋𨿅𩃬筑𩄐𩄼㷷𩅞𤫊运犏嚋𩓧𩗩𩖰𩖸𩜲𩣑𩥉𩥪𩧃𩨨𩬎𩵚𩶛纟𩻸𩼣䲤镇𪊓熢𪋿䶑递𪗋䶜𠲜达嗁"],
+["9da1","辺𢒰边𤪓䔉繿潖檱仪㓤𨬬𧢝㜺躀𡟵𨀤𨭬𨮙𧨾𦚯㷫𧙕𣲷𥘵𥥖亚𥺁𦉘嚿𠹭踎孭𣺈𤲞揞拐𡟶𡡻攰嘭𥱊吚𥌑㷆𩶘䱽嘢嘞罉𥻘奵𣵀蝰东𠿪𠵉𣚺脗鵞贘瘻鱅癎瞹鍅吲腈苷嘥脲萘肽嗪祢噃吖𠺝㗎嘅嗱曱𨋢㘭甴嗰喺咗啲𠱁𠲖廐𥅈𠹶𢱢"],
+["9e40","𠺢麫絚嗞𡁵抝靭咔賍燶酶揼掹揾啩𢭃鱲𢺳冚㓟𠶧冧呍唞唓癦踭𦢊疱肶蠄螆裇膶萜𡃁䓬猄𤜆宐茋𦢓噻𢛴𧴯𤆣𧵳𦻐𧊶酰𡇙鈈𣳼𪚩𠺬𠻹牦𡲢䝎𤿂𧿹𠿫䃺"],
+["9ea1","鱝攟𢶠䣳𤟠𩵼𠿬𠸊恢𧖣𠿭"],
+["9ead","𦁈𡆇熣纎鵐业丄㕷嬍沲卧㚬㧜卽㚥𤘘墚𤭮舭呋垪𥪕𠥹"],
+["9ec5","㩒𢑥獴𩺬䴉鯭𣳾𩼰䱛𤾩𩖞𩿞葜𣶶𧊲𦞳𣜠挮紥𣻷𣸬㨪逈勌㹴㙺䗩𠒎癀嫰𠺶硺𧼮墧䂿噼鮋嵴癔𪐴麅䳡痹㟻愙𣃚𤏲"],
+["9ef5","噝𡊩垧𤥣𩸆刴𧂮㖭汊鵼"],
+["9f40","籖鬹埞𡝬屓擓𩓐𦌵𧅤蚭𠴨𦴢𤫢𠵱"],
+["9f4f","凾𡼏嶎霃𡷑麁遌笟鬂峑箣扨挵髿篏鬪籾鬮籂粆鰕篼鬉鼗鰛𤤾齚啳寃俽麘俲剠㸆勑坧偖妷帒韈鶫轜呩鞴饀鞺匬愰"],
+["9fa1","椬叚鰊鴂䰻陁榀傦畆𡝭駚剳"],
+["9fae","酙隁酜"],
+["9fb2","酑𨺗捿𦴣櫊嘑醎畺抅𠏼獏籰𥰡𣳽"],
+["9fc1","𤤙盖鮝个𠳔莾衂"],
+["9fc9","届槀僭坺刟巵从氱𠇲伹咜哚劚趂㗾弌㗳"],
+["9fdb","歒酼龥鮗頮颴骺麨麄煺笔"],
+["9fe7","毺蠘罸"],
+["9feb","嘠𪙊蹷齓"],
+["9ff0","跔蹏鸜踁抂𨍽踨蹵竓𤩷稾磘泪詧瘇"],
+["a040","𨩚鼦泎蟖痃𪊲硓咢贌狢獱謭猂瓱賫𤪻蘯徺袠䒷"],
+["a055","𡠻𦸅"],
+["a058","詾𢔛"],
+["a05b","惽癧髗鵄鍮鮏蟵"],
+["a063","蠏賷猬霡鮰㗖犲䰇籑饊𦅙慙䰄麖慽"],
+["a073","坟慯抦戹拎㩜懢厪𣏵捤栂㗒"],
+["a0a1","嵗𨯂迚𨸹"],
+["a0a6","僙𡵆礆匲阸𠼻䁥"],
+["a0ae","矾"],
+["a0b0","糂𥼚糚稭聦聣絍甅瓲覔舚朌聢𧒆聛瓰脃眤覉𦟌畓𦻑螩蟎臈螌詉貭譃眫瓸蓚㘵榲趦"],
+["a0d4","覩瑨涹蟁𤀑瓧㷛煶悤憜㳑煢恷"],
+["a0e2","罱𨬭牐惩䭾删㰘𣳇𥻗𧙖𥔱𡥄𡋾𩤃𦷜𧂭峁𦆭𨨏𣙷𠃮𦡆𤼎䕢嬟𦍌齐麦𦉫"],
+["a3c0","␀",31,"␡"],
+["c6a1","①",9,"⑴",9,"ⅰ",9,"丶丿亅亠冂冖冫勹匸卩厶夊宀巛⼳广廴彐彡攴无疒癶辵隶¨ˆヽヾゝゞ〃仝々〆〇ー［］✽ぁ",23],
+["c740","す",58,"ァアィイ"],
+["c7a1","ゥ",81,"А",5,"ЁЖ",4],
+["c840","Л",26,"ёж",25,"⇧↸↹㇏𠃌乚𠂊刂䒑"],
+["c8a1","龰冈龱𧘇"],
+["c8cd","￢￤＇＂㈱№℡゛゜⺀⺄⺆⺇⺈⺊⺌⺍⺕⺜⺝⺥⺧⺪⺬⺮⺶⺼⺾⻆⻊⻌⻍⻏⻖⻗⻞⻣"],
+["c8f5","ʃɐɛɔɵœøŋʊɪ"],
+["f9fe","￭"],
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+]
diff --git a/backend/node_modules/iconv-lite/encodings/tables/cp936.json b/backend/node_modules/iconv-lite/encodings/tables/cp936.json
new file mode 100644
index 0000000..49ddb9a
--- /dev/null
+++ b/backend/node_modules/iconv-lite/encodings/tables/cp936.json
@@ -0,0 +1,264 @@
+[
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+["fe40","兀嗀﨎﨏﨑﨓﨔礼﨟蘒﨡﨣﨤﨧﨨﨩"]
+]
diff --git a/backend/node_modules/iconv-lite/encodings/tables/cp949.json b/backend/node_modules/iconv-lite/encodings/tables/cp949.json
new file mode 100644
index 0000000..2022a00
--- /dev/null
+++ b/backend/node_modules/iconv-lite/encodings/tables/cp949.json
@@ -0,0 +1,273 @@
+[
+["0","\u0000",127],
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+["8961","뎎뎏뎑뎒뎓뎕",10,"뎢",5,"뎩뎪뎫뎭"],
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+["b181","콅",14,"콖콗콙콚콛콝",6,"콦콨콪콫콬괌괍괏광괘괜괠괩괬괭괴괵괸괼굄굅굇굉교굔굘굡굣구국군굳굴굵굶굻굼굽굿궁궂궈궉권궐궜궝궤궷귀귁귄귈귐귑귓규균귤그극근귿글긁금급긋긍긔기긱긴긷길긺김깁깃깅깆깊까깍깎깐깔깖깜깝깟깠깡깥깨깩깬깰깸"],
+["b241","콭콮콯콲콳콵콶콷콹",6,"쾁쾂쾃쾄쾆",5,"쾍"],
+["b261","쾎",18,"쾢",5,"쾩"],
+["b281","쾪",5,"쾱",18,"쿅",6,"깹깻깼깽꺄꺅꺌꺼꺽꺾껀껄껌껍껏껐껑께껙껜껨껫껭껴껸껼꼇꼈꼍꼐꼬꼭꼰꼲꼴꼼꼽꼿꽁꽂꽃꽈꽉꽐꽜꽝꽤꽥꽹꾀꾄꾈꾐꾑꾕꾜꾸꾹꾼꿀꿇꿈꿉꿋꿍꿎꿔꿜꿨꿩꿰꿱꿴꿸뀀뀁뀄뀌뀐뀔뀜뀝뀨끄끅끈끊끌끎끓끔끕끗끙"],
+["b341","쿌",19,"쿢쿣쿥쿦쿧쿩"],
+["b361","쿪",5,"쿲쿴쿶",5,"쿽쿾쿿퀁퀂퀃퀅",5],
+["b381","퀋",5,"퀒",5,"퀙",19,"끝끼끽낀낄낌낍낏낑나낙낚난낟날낡낢남납낫",4,"낱낳내낵낸낼냄냅냇냈냉냐냑냔냘냠냥너넉넋넌널넒넓넘넙넛넜넝넣네넥넨넬넴넵넷넸넹녀녁년녈념녑녔녕녘녜녠노녹논놀놂놈놉놋농높놓놔놘놜놨뇌뇐뇔뇜뇝"],
+["b441","퀮",5,"퀶퀷퀹퀺퀻퀽",6,"큆큈큊",5],
+["b461","큑큒큓큕큖큗큙",6,"큡",10,"큮큯"],
+["b481","큱큲큳큵",6,"큾큿킀킂",18,"뇟뇨뇩뇬뇰뇹뇻뇽누눅눈눋눌눔눕눗눙눠눴눼뉘뉜뉠뉨뉩뉴뉵뉼늄늅늉느늑는늘늙늚늠늡늣능늦늪늬늰늴니닉닌닐닒님닙닛닝닢다닥닦단닫",4,"닳담답닷",4,"닿대댁댄댈댐댑댓댔댕댜더덕덖던덛덜덞덟덤덥"],
+["b541","킕",14,"킦킧킩킪킫킭",5],
+["b561","킳킶킸킺",5,"탂탃탅탆탇탊",5,"탒탖",4],
+["b581","탛탞탟탡탢탣탥",6,"탮탲",5,"탹",11,"덧덩덫덮데덱덴델뎀뎁뎃뎄뎅뎌뎐뎔뎠뎡뎨뎬도독돈돋돌돎돐돔돕돗동돛돝돠돤돨돼됐되된될됨됩됫됴두둑둔둘둠둡둣둥둬뒀뒈뒝뒤뒨뒬뒵뒷뒹듀듄듈듐듕드득든듣들듦듬듭듯등듸디딕딘딛딜딤딥딧딨딩딪따딱딴딸"],
+["b641","턅",7,"턎",17],
+["b661","턠",15,"턲턳턵턶턷턹턻턼턽턾"],
+["b681","턿텂텆",5,"텎텏텑텒텓텕",6,"텞텠텢",5,"텩텪텫텭땀땁땃땄땅땋때땍땐땔땜땝땟땠땡떠떡떤떨떪떫떰떱떳떴떵떻떼떽뗀뗄뗌뗍뗏뗐뗑뗘뗬또똑똔똘똥똬똴뙈뙤뙨뚜뚝뚠뚤뚫뚬뚱뛔뛰뛴뛸뜀뜁뜅뜨뜩뜬뜯뜰뜸뜹뜻띄띈띌띔띕띠띤띨띰띱띳띵라락란랄람랍랏랐랑랒랖랗"],
+["b741","텮",13,"텽",6,"톅톆톇톉톊"],
+["b761","톋",20,"톢톣톥톦톧"],
+["b781","톩",6,"톲톴톶톷톸톹톻톽톾톿퇁",14,"래랙랜랠램랩랫랬랭랴략랸럇량러럭런럴럼럽럿렀렁렇레렉렌렐렘렙렛렝려력련렬렴렵렷렸령례롄롑롓로록론롤롬롭롯롱롸롼뢍뢨뢰뢴뢸룀룁룃룅료룐룔룝룟룡루룩룬룰룸룹룻룽뤄뤘뤠뤼뤽륀륄륌륏륑류륙륜률륨륩"],
+["b841","퇐",7,"퇙",17],
+["b861","퇫",8,"퇵퇶퇷퇹",13],
+["b881","툈툊",5,"툑",24,"륫륭르륵른를름릅릇릉릊릍릎리릭린릴림립릿링마막만많",4,"맘맙맛망맞맡맣매맥맨맬맴맵맷맸맹맺먀먁먈먕머먹먼멀멂멈멉멋멍멎멓메멕멘멜멤멥멧멨멩며멱면멸몃몄명몇몌모목몫몬몰몲몸몹못몽뫄뫈뫘뫙뫼"],
+["b941","툪툫툮툯툱툲툳툵",6,"툾퉀퉂",5,"퉉퉊퉋퉌"],
+["b961","퉍",14,"퉝",6,"퉥퉦퉧퉨"],
+["b981","퉩",22,"튂튃튅튆튇튉튊튋튌묀묄묍묏묑묘묜묠묩묫무묵묶문묻물묽묾뭄뭅뭇뭉뭍뭏뭐뭔뭘뭡뭣뭬뮈뮌뮐뮤뮨뮬뮴뮷므믄믈믐믓미믹민믿밀밂밈밉밋밌밍및밑바",4,"받",4,"밤밥밧방밭배백밴밸뱀뱁뱃뱄뱅뱉뱌뱍뱐뱝버벅번벋벌벎범법벗"],
+["ba41","튍튎튏튒튓튔튖",5,"튝튞튟튡튢튣튥",6,"튭"],
+["ba61","튮튯튰튲",5,"튺튻튽튾틁틃",4,"틊틌",5],
+["ba81","틒틓틕틖틗틙틚틛틝",6,"틦",9,"틲틳틵틶틷틹틺벙벚베벡벤벧벨벰벱벳벴벵벼벽변별볍볏볐병볕볘볜보복볶본볼봄봅봇봉봐봔봤봬뵀뵈뵉뵌뵐뵘뵙뵤뵨부북분붇불붉붊붐붑붓붕붙붚붜붤붰붸뷔뷕뷘뷜뷩뷰뷴뷸븀븃븅브븍븐블븜븝븟비빅빈빌빎빔빕빗빙빚빛빠빡빤"],
+["bb41","틻",4,"팂팄팆",5,"팏팑팒팓팕팗",4,"팞팢팣"],
+["bb61","팤팦팧팪팫팭팮팯팱",6,"팺팾",5,"퍆퍇퍈퍉"],
+["bb81","퍊",31,"빨빪빰빱빳빴빵빻빼빽뺀뺄뺌뺍뺏뺐뺑뺘뺙뺨뻐뻑뻔뻗뻘뻠뻣뻤뻥뻬뼁뼈뼉뼘뼙뼛뼜뼝뽀뽁뽄뽈뽐뽑뽕뾔뾰뿅뿌뿍뿐뿔뿜뿟뿡쀼쁑쁘쁜쁠쁨쁩삐삑삔삘삠삡삣삥사삭삯산삳살삵삶삼삽삿샀상샅새색샌샐샘샙샛샜생샤"],
+["bc41","퍪",17,"퍾퍿펁펂펃펅펆펇"],
+["bc61","펈펉펊펋펎펒",5,"펚펛펝펞펟펡",6,"펪펬펮"],
+["bc81","펯",4,"펵펶펷펹펺펻펽",6,"폆폇폊",5,"폑",5,"샥샨샬샴샵샷샹섀섄섈섐섕서",4,"섣설섦섧섬섭섯섰성섶세섹센셀셈셉셋셌셍셔셕션셜셤셥셧셨셩셰셴셸솅소속솎손솔솖솜솝솟송솥솨솩솬솰솽쇄쇈쇌쇔쇗쇘쇠쇤쇨쇰쇱쇳쇼쇽숀숄숌숍숏숑수숙순숟술숨숩숫숭"],
+["bd41","폗폙",7,"폢폤",7,"폮폯폱폲폳폵폶폷"],
+["bd61","폸폹폺폻폾퐀퐂",5,"퐉",13],
+["bd81","퐗",5,"퐞",25,"숯숱숲숴쉈쉐쉑쉔쉘쉠쉥쉬쉭쉰쉴쉼쉽쉿슁슈슉슐슘슛슝스슥슨슬슭슴습슷승시식신싣실싫심십싯싱싶싸싹싻싼쌀쌈쌉쌌쌍쌓쌔쌕쌘쌜쌤쌥쌨쌩썅써썩썬썰썲썸썹썼썽쎄쎈쎌쏀쏘쏙쏜쏟쏠쏢쏨쏩쏭쏴쏵쏸쐈쐐쐤쐬쐰"],
+["be41","퐸",7,"푁푂푃푅",14],
+["be61","푔",7,"푝푞푟푡푢푣푥",7,"푮푰푱푲"],
+["be81","푳",4,"푺푻푽푾풁풃",4,"풊풌풎",5,"풕",8,"쐴쐼쐽쑈쑤쑥쑨쑬쑴쑵쑹쒀쒔쒜쒸쒼쓩쓰쓱쓴쓸쓺쓿씀씁씌씐씔씜씨씩씬씰씸씹씻씽아악안앉않알앍앎앓암압앗았앙앝앞애액앤앨앰앱앳앴앵야약얀얄얇얌얍얏양얕얗얘얜얠얩어억언얹얻얼얽얾엄",6,"엌엎"],
+["bf41","풞",10,"풪",14],
+["bf61","풹",18,"퓍퓎퓏퓑퓒퓓퓕"],
+["bf81","퓖",5,"퓝퓞퓠",7,"퓩퓪퓫퓭퓮퓯퓱",6,"퓹퓺퓼에엑엔엘엠엡엣엥여역엮연열엶엷염",5,"옅옆옇예옌옐옘옙옛옜오옥온올옭옮옰옳옴옵옷옹옻와왁완왈왐왑왓왔왕왜왝왠왬왯왱외왹왼욀욈욉욋욍요욕욘욜욤욥욧용우욱운울욹욺움웁웃웅워웍원월웜웝웠웡웨"],
+["c041","퓾",5,"픅픆픇픉픊픋픍",6,"픖픘",5],
+["c061","픞",25],
+["c081","픸픹픺픻픾픿핁핂핃핅",6,"핎핐핒",5,"핚핛핝핞핟핡핢핣웩웬웰웸웹웽위윅윈윌윔윕윗윙유육윤율윰윱윳융윷으윽은을읊음읍읏응",7,"읜읠읨읫이익인일읽읾잃임입잇있잉잊잎자작잔잖잗잘잚잠잡잣잤장잦재잭잰잴잼잽잿쟀쟁쟈쟉쟌쟎쟐쟘쟝쟤쟨쟬저적전절젊"],
+["c141","핤핦핧핪핬핮",5,"핶핷핹핺핻핽",6,"햆햊햋"],
+["c161","햌햍햎햏햑",19,"햦햧"],
+["c181","햨",31,"점접젓정젖제젝젠젤젬젭젯젱져젼졀졈졉졌졍졔조족존졸졺좀좁좃종좆좇좋좌좍좔좝좟좡좨좼좽죄죈죌죔죕죗죙죠죡죤죵주죽준줄줅줆줌줍줏중줘줬줴쥐쥑쥔쥘쥠쥡쥣쥬쥰쥴쥼즈즉즌즐즘즙즛증지직진짇질짊짐집짓"],
+["c241","헊헋헍헎헏헑헓",4,"헚헜헞",5,"헦헧헩헪헫헭헮"],
+["c261","헯",4,"헶헸헺",5,"혂혃혅혆혇혉",6,"혒"],
+["c281","혖",5,"혝혞혟혡혢혣혥",7,"혮",9,"혺혻징짖짙짚짜짝짠짢짤짧짬짭짯짰짱째짹짼쨀쨈쨉쨋쨌쨍쨔쨘쨩쩌쩍쩐쩔쩜쩝쩟쩠쩡쩨쩽쪄쪘쪼쪽쫀쫄쫌쫍쫏쫑쫓쫘쫙쫠쫬쫴쬈쬐쬔쬘쬠쬡쭁쭈쭉쭌쭐쭘쭙쭝쭤쭸쭹쮜쮸쯔쯤쯧쯩찌찍찐찔찜찝찡찢찧차착찬찮찰참찹찻"],
+["c341","혽혾혿홁홂홃홄홆홇홊홌홎홏홐홒홓홖홗홙홚홛홝",4],
+["c361","홢",4,"홨홪",5,"홲홳홵",11],
+["c381","횁횂횄횆",5,"횎횏횑횒횓횕",7,"횞횠횢",5,"횩횪찼창찾채책챈챌챔챕챗챘챙챠챤챦챨챰챵처척천철첨첩첫첬청체첵첸첼쳄쳅쳇쳉쳐쳔쳤쳬쳰촁초촉촌촐촘촙촛총촤촨촬촹최쵠쵤쵬쵭쵯쵱쵸춈추축춘출춤춥춧충춰췄췌췐취췬췰췸췹췻췽츄츈츌츔츙츠측츤츨츰츱츳층"],
+["c441","횫횭횮횯횱",7,"횺횼",7,"훆훇훉훊훋"],
+["c461","훍훎훏훐훒훓훕훖훘훚",5,"훡훢훣훥훦훧훩",4],
+["c481","훮훯훱훲훳훴훶",5,"훾훿휁휂휃휅",11,"휒휓휔치칙친칟칠칡침칩칫칭카칵칸칼캄캅캇캉캐캑캔캘캠캡캣캤캥캬캭컁커컥컨컫컬컴컵컷컸컹케켁켄켈켐켑켓켕켜켠켤켬켭켯켰켱켸코콕콘콜콤콥콧콩콰콱콴콸쾀쾅쾌쾡쾨쾰쿄쿠쿡쿤쿨쿰쿱쿳쿵쿼퀀퀄퀑퀘퀭퀴퀵퀸퀼"],
+["c541","휕휖휗휚휛휝휞휟휡",6,"휪휬휮",5,"휶휷휹"],
+["c561","휺휻휽",6,"흅흆흈흊",5,"흒흓흕흚",4],
+["c581","흟흢흤흦흧흨흪흫흭흮흯흱흲흳흵",6,"흾흿힀힂",5,"힊힋큄큅큇큉큐큔큘큠크큭큰클큼큽킁키킥킨킬킴킵킷킹타탁탄탈탉탐탑탓탔탕태택탠탤탬탭탯탰탱탸턍터턱턴털턺텀텁텃텄텅테텍텐텔템텝텟텡텨텬텼톄톈토톡톤톨톰톱톳통톺톼퇀퇘퇴퇸툇툉툐투툭툰툴툼툽툿퉁퉈퉜"],
+["c641","힍힎힏힑",6,"힚힜힞",5],
+["c6a1","퉤튀튁튄튈튐튑튕튜튠튤튬튱트특튼튿틀틂틈틉틋틔틘틜틤틥티틱틴틸팀팁팃팅파팍팎판팔팖팜팝팟팠팡팥패팩팬팰팸팹팻팼팽퍄퍅퍼퍽펀펄펌펍펏펐펑페펙펜펠펨펩펫펭펴편펼폄폅폈평폐폘폡폣포폭폰폴폼폽폿퐁"],
+["c7a1","퐈퐝푀푄표푠푤푭푯푸푹푼푿풀풂품풉풋풍풔풩퓌퓐퓔퓜퓟퓨퓬퓰퓸퓻퓽프픈플픔픕픗피픽핀필핌핍핏핑하학한할핥함합핫항해핵핸핼햄햅햇했행햐향허헉헌헐헒험헙헛헝헤헥헨헬헴헵헷헹혀혁현혈혐협혓혔형혜혠"],
+["c8a1","혤혭호혹혼홀홅홈홉홋홍홑화확환활홧황홰홱홴횃횅회획횐횔횝횟횡효횬횰횹횻후훅훈훌훑훔훗훙훠훤훨훰훵훼훽휀휄휑휘휙휜휠휨휩휫휭휴휵휸휼흄흇흉흐흑흔흖흗흘흙흠흡흣흥흩희흰흴흼흽힁히힉힌힐힘힙힛힝"],
+["caa1","伽佳假價加可呵哥嘉嫁家暇架枷柯歌珂痂稼苛茄街袈訶賈跏軻迦駕刻却各恪慤殼珏脚覺角閣侃刊墾奸姦干幹懇揀杆柬桿澗癎看磵稈竿簡肝艮艱諫間乫喝曷渴碣竭葛褐蝎鞨勘坎堪嵌感憾戡敢柑橄減甘疳監瞰紺邯鑑鑒龕"],
+["cba1","匣岬甲胛鉀閘剛堈姜岡崗康强彊慷江畺疆糠絳綱羌腔舡薑襁講鋼降鱇介价個凱塏愷愾慨改槪漑疥皆盖箇芥蓋豈鎧開喀客坑更粳羹醵倨去居巨拒据據擧渠炬祛距踞車遽鉅鋸乾件健巾建愆楗腱虔蹇鍵騫乞傑杰桀儉劍劒檢"],
+["cca1","瞼鈐黔劫怯迲偈憩揭擊格檄激膈覡隔堅牽犬甄絹繭肩見譴遣鵑抉決潔結缺訣兼慊箝謙鉗鎌京俓倞傾儆勁勍卿坰境庚徑慶憬擎敬景暻更梗涇炅烱璟璥瓊痙硬磬竟競絅經耕耿脛莖警輕逕鏡頃頸驚鯨係啓堺契季屆悸戒桂械"],
+["cda1","棨溪界癸磎稽系繫繼計誡谿階鷄古叩告呱固姑孤尻庫拷攷故敲暠枯槁沽痼皐睾稿羔考股膏苦苽菰藁蠱袴誥賈辜錮雇顧高鼓哭斛曲梏穀谷鵠困坤崑昆梱棍滾琨袞鯤汨滑骨供公共功孔工恐恭拱控攻珙空蚣貢鞏串寡戈果瓜"],
+["cea1","科菓誇課跨過鍋顆廓槨藿郭串冠官寬慣棺款灌琯瓘管罐菅觀貫關館刮恝括适侊光匡壙廣曠洸炚狂珖筐胱鑛卦掛罫乖傀塊壞怪愧拐槐魁宏紘肱轟交僑咬喬嬌嶠巧攪敎校橋狡皎矯絞翹膠蕎蛟較轎郊餃驕鮫丘久九仇俱具勾"],
+["cfa1","區口句咎嘔坵垢寇嶇廐懼拘救枸柩構歐毆毬求溝灸狗玖球瞿矩究絿耉臼舅舊苟衢謳購軀逑邱鉤銶駒驅鳩鷗龜國局菊鞠鞫麴君窘群裙軍郡堀屈掘窟宮弓穹窮芎躬倦券勸卷圈拳捲權淃眷厥獗蕨蹶闕机櫃潰詭軌饋句晷歸貴"],
+["d0a1","鬼龜叫圭奎揆槻珪硅窺竅糾葵規赳逵閨勻均畇筠菌鈞龜橘克剋劇戟棘極隙僅劤勤懃斤根槿瑾筋芹菫覲謹近饉契今妗擒昑檎琴禁禽芩衾衿襟金錦伋及急扱汲級給亘兢矜肯企伎其冀嗜器圻基埼夔奇妓寄岐崎己幾忌技旗旣"],
+["d1a1","朞期杞棋棄機欺氣汽沂淇玘琦琪璂璣畸畿碁磯祁祇祈祺箕紀綺羈耆耭肌記譏豈起錡錤飢饑騎騏驥麒緊佶吉拮桔金喫儺喇奈娜懦懶拏拿癩",5,"那樂",4,"諾酪駱亂卵暖欄煖爛蘭難鸞捏捺南嵐枏楠湳濫男藍襤拉"],
+["d2a1","納臘蠟衲囊娘廊",4,"乃來內奈柰耐冷女年撚秊念恬拈捻寧寗努勞奴弩怒擄櫓爐瑙盧",5,"駑魯",10,"濃籠聾膿農惱牢磊腦賂雷尿壘",7,"嫩訥杻紐勒",5,"能菱陵尼泥匿溺多茶"],
+["d3a1","丹亶但單團壇彖斷旦檀段湍短端簞緞蛋袒鄲鍛撻澾獺疸達啖坍憺擔曇淡湛潭澹痰聃膽蕁覃談譚錟沓畓答踏遝唐堂塘幢戇撞棠當糖螳黨代垈坮大對岱帶待戴擡玳臺袋貸隊黛宅德悳倒刀到圖堵塗導屠島嶋度徒悼挑掉搗桃"],
+["d4a1","棹櫂淘渡滔濤燾盜睹禱稻萄覩賭跳蹈逃途道都鍍陶韜毒瀆牘犢獨督禿篤纛讀墩惇敦旽暾沌焞燉豚頓乭突仝冬凍動同憧東桐棟洞潼疼瞳童胴董銅兜斗杜枓痘竇荳讀豆逗頭屯臀芚遁遯鈍得嶝橙燈登等藤謄鄧騰喇懶拏癩羅"],
+["d5a1","蘿螺裸邏樂洛烙珞絡落諾酪駱丹亂卵欄欒瀾爛蘭鸞剌辣嵐擥攬欖濫籃纜藍襤覽拉臘蠟廊朗浪狼琅瑯螂郞來崍徠萊冷掠略亮倆兩凉梁樑粮粱糧良諒輛量侶儷勵呂廬慮戾旅櫚濾礪藜蠣閭驢驪麗黎力曆歷瀝礫轢靂憐戀攣漣"],
+["d6a1","煉璉練聯蓮輦連鍊冽列劣洌烈裂廉斂殮濂簾獵令伶囹寧岺嶺怜玲笭羚翎聆逞鈴零靈領齡例澧禮醴隷勞怒撈擄櫓潞瀘爐盧老蘆虜路輅露魯鷺鹵碌祿綠菉錄鹿麓論壟弄朧瀧瓏籠聾儡瀨牢磊賂賚賴雷了僚寮廖料燎療瞭聊蓼"],
+["d7a1","遼鬧龍壘婁屢樓淚漏瘻累縷蔞褸鏤陋劉旒柳榴流溜瀏琉瑠留瘤硫謬類六戮陸侖倫崙淪綸輪律慄栗率隆勒肋凜凌楞稜綾菱陵俚利厘吏唎履悧李梨浬犁狸理璃異痢籬罹羸莉裏裡里釐離鯉吝潾燐璘藺躪隣鱗麟林淋琳臨霖砬"],
+["d8a1","立笠粒摩瑪痲碼磨馬魔麻寞幕漠膜莫邈万卍娩巒彎慢挽晩曼滿漫灣瞞萬蔓蠻輓饅鰻唜抹末沫茉襪靺亡妄忘忙望網罔芒茫莽輞邙埋妹媒寐昧枚梅每煤罵買賣邁魅脈貊陌驀麥孟氓猛盲盟萌冪覓免冕勉棉沔眄眠綿緬面麵滅"],
+["d9a1","蔑冥名命明暝椧溟皿瞑茗蓂螟酩銘鳴袂侮冒募姆帽慕摸摹暮某模母毛牟牡瑁眸矛耗芼茅謀謨貌木沐牧目睦穆鶩歿沒夢朦蒙卯墓妙廟描昴杳渺猫竗苗錨務巫憮懋戊拇撫无楙武毋無珷畝繆舞茂蕪誣貿霧鵡墨默們刎吻問文"],
+["daa1","汶紊紋聞蚊門雯勿沕物味媚尾嵋彌微未梶楣渼湄眉米美薇謎迷靡黴岷悶愍憫敏旻旼民泯玟珉緡閔密蜜謐剝博拍搏撲朴樸泊珀璞箔粕縛膊舶薄迫雹駁伴半反叛拌搬攀斑槃泮潘班畔瘢盤盼磐磻礬絆般蟠返頒飯勃拔撥渤潑"],
+["dba1","發跋醱鉢髮魃倣傍坊妨尨幇彷房放方旁昉枋榜滂磅紡肪膀舫芳蒡蚌訪謗邦防龐倍俳北培徘拜排杯湃焙盃背胚裴裵褙賠輩配陪伯佰帛柏栢白百魄幡樊煩燔番磻繁蕃藩飜伐筏罰閥凡帆梵氾汎泛犯範范法琺僻劈壁擘檗璧癖"],
+["dca1","碧蘗闢霹便卞弁變辨辯邊別瞥鱉鼈丙倂兵屛幷昞昺柄棅炳甁病秉竝輧餠騈保堡報寶普步洑湺潽珤甫菩補褓譜輔伏僕匐卜宓復服福腹茯蔔複覆輹輻馥鰒本乶俸奉封峯峰捧棒烽熢琫縫蓬蜂逢鋒鳳不付俯傅剖副否咐埠夫婦"],
+["dda1","孚孵富府復扶敷斧浮溥父符簿缶腐腑膚艀芙莩訃負賦賻赴趺部釜阜附駙鳧北分吩噴墳奔奮忿憤扮昐汾焚盆粉糞紛芬賁雰不佛弗彿拂崩朋棚硼繃鵬丕備匕匪卑妃婢庇悲憊扉批斐枇榧比毖毗毘沸泌琵痺砒碑秕秘粃緋翡肥"],
+["dea1","脾臂菲蜚裨誹譬費鄙非飛鼻嚬嬪彬斌檳殯浜濱瀕牝玭貧賓頻憑氷聘騁乍事些仕伺似使俟僿史司唆嗣四士奢娑寫寺射巳師徙思捨斜斯柶査梭死沙泗渣瀉獅砂社祀祠私篩紗絲肆舍莎蓑蛇裟詐詞謝賜赦辭邪飼駟麝削數朔索"],
+["dfa1","傘刪山散汕珊産疝算蒜酸霰乷撒殺煞薩三參杉森渗芟蔘衫揷澁鈒颯上傷像償商喪嘗孀尙峠常床庠廂想桑橡湘爽牀狀相祥箱翔裳觴詳象賞霜塞璽賽嗇塞穡索色牲生甥省笙墅壻嶼序庶徐恕抒捿敍暑曙書栖棲犀瑞筮絮緖署"],
+["e0a1","胥舒薯西誓逝鋤黍鼠夕奭席惜昔晳析汐淅潟石碩蓆釋錫仙僊先善嬋宣扇敾旋渲煽琁瑄璇璿癬禪線繕羨腺膳船蘚蟬詵跣選銑鐥饍鮮卨屑楔泄洩渫舌薛褻設說雪齧剡暹殲纖蟾贍閃陝攝涉燮葉城姓宬性惺成星晟猩珹盛省筬"],
+["e1a1","聖聲腥誠醒世勢歲洗稅笹細說貰召嘯塑宵小少巢所掃搔昭梳沼消溯瀟炤燒甦疏疎瘙笑篠簫素紹蔬蕭蘇訴逍遡邵銷韶騷俗屬束涑粟續謖贖速孫巽損蓀遜飡率宋悚松淞訟誦送頌刷殺灑碎鎖衰釗修受嗽囚垂壽嫂守岫峀帥愁"],
+["e2a1","戍手授搜收數樹殊水洙漱燧狩獸琇璲瘦睡秀穗竪粹綏綬繡羞脩茱蒐蓚藪袖誰讐輸遂邃酬銖銹隋隧隨雖需須首髓鬚叔塾夙孰宿淑潚熟琡璹肅菽巡徇循恂旬栒楯橓殉洵淳珣盾瞬筍純脣舜荀蓴蕣詢諄醇錞順馴戌術述鉥崇崧"],
+["e3a1","嵩瑟膝蝨濕拾習褶襲丞乘僧勝升承昇繩蠅陞侍匙嘶始媤尸屎屍市弑恃施是時枾柴猜矢示翅蒔蓍視試詩諡豕豺埴寔式息拭植殖湜熄篒蝕識軾食飾伸侁信呻娠宸愼新晨燼申神紳腎臣莘薪藎蜃訊身辛辰迅失室實悉審尋心沁"],
+["e4a1","沈深瀋甚芯諶什十拾雙氏亞俄兒啞娥峨我牙芽莪蛾衙訝阿雅餓鴉鵝堊岳嶽幄惡愕握樂渥鄂鍔顎鰐齷安岸按晏案眼雁鞍顔鮟斡謁軋閼唵岩巖庵暗癌菴闇壓押狎鴨仰央怏昻殃秧鴦厓哀埃崖愛曖涯碍艾隘靄厄扼掖液縊腋額"],
+["e5a1","櫻罌鶯鸚也倻冶夜惹揶椰爺耶若野弱掠略約若葯蒻藥躍亮佯兩凉壤孃恙揚攘敭暘梁楊樣洋瀁煬痒瘍禳穰糧羊良襄諒讓釀陽量養圄御於漁瘀禦語馭魚齬億憶抑檍臆偃堰彦焉言諺孼蘖俺儼嚴奄掩淹嶪業円予余勵呂女如廬"],
+["e6a1","旅歟汝濾璵礖礪與艅茹輿轝閭餘驪麗黎亦力域役易曆歷疫繹譯轢逆驛嚥堧姸娟宴年延憐戀捐挻撚椽沇沿涎涓淵演漣烟然煙煉燃燕璉硏硯秊筵緣練縯聯衍軟輦蓮連鉛鍊鳶列劣咽悅涅烈熱裂說閱厭廉念捻染殮炎焰琰艶苒"],
+["e7a1","簾閻髥鹽曄獵燁葉令囹塋寧嶺嶸影怜映暎楹榮永泳渶潁濚瀛瀯煐營獰玲瑛瑩瓔盈穎纓羚聆英詠迎鈴鍈零霙靈領乂倪例刈叡曳汭濊猊睿穢芮藝蘂禮裔詣譽豫醴銳隸霓預五伍俉傲午吾吳嗚塢墺奧娛寤悟惡懊敖旿晤梧汚澳"],
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diff --git a/backend/node_modules/iconv-lite/encodings/tables/cp950.json b/backend/node_modules/iconv-lite/encodings/tables/cp950.json
new file mode 100644
index 0000000..d8bc871
--- /dev/null
+++ b/backend/node_modules/iconv-lite/encodings/tables/cp950.json
@@ -0,0 +1,177 @@
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+["d8a1","堙堞堧堣堨埵塈堥堜堛堳堿堶堮堹堸堭堬堻奡媯媔媟婺媢媞婸媦婼媥媬媕媮娷媄媊媗媃媋媩婻婽媌媜媏媓媝寪寍寋寔寑寊寎尌尰崷嵃嵫嵁嵋崿崵嵑嵎嵕崳崺嵒崽崱嵙嵂崹嵉崸崼崲崶嵀嵅幄幁彘徦徥徫惉悹惌惢惎惄愔"],
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+["d9a1","晼晬晻暀晱晹晪晲朁椌棓椄棜椪棬棪棱椏棖棷棫棤棶椓椐棳棡椇棌椈楰梴椑棯棆椔棸棐棽棼棨椋椊椗棎棈棝棞棦棴棑椆棔棩椕椥棇欹欻欿欼殔殗殙殕殽毰毲毳氰淼湆湇渟湉溈渼渽湅湢渫渿湁湝湳渜渳湋湀湑渻渃渮湞"],
+["da40","湨湜湡渱渨湠湱湫渹渢渰湓湥渧湸湤湷湕湹湒湦渵渶湚焠焞焯烻焮焱焣焥焢焲焟焨焺焛牋牚犈犉犆犅犋猒猋猰猢猱猳猧猲猭猦猣猵猌琮琬琰琫琖"],
+["daa1","琚琡琭琱琤琣琝琩琠琲瓻甯畯畬痧痚痡痦痝痟痤痗皕皒盚睆睇睄睍睅睊睎睋睌矞矬硠硤硥硜硭硱硪确硰硩硨硞硢祴祳祲祰稂稊稃稌稄窙竦竤筊笻筄筈筌筎筀筘筅粢粞粨粡絘絯絣絓絖絧絪絏絭絜絫絒絔絩絑絟絎缾缿罥"],
+["db40","罦羢羠羡翗聑聏聐胾胔腃腊腒腏腇脽腍脺臦臮臷臸臹舄舼舽舿艵茻菏菹萣菀菨萒菧菤菼菶萐菆菈菫菣莿萁菝菥菘菿菡菋菎菖菵菉萉萏菞萑萆菂菳"],
+["dba1","菕菺菇菑菪萓菃菬菮菄菻菗菢萛菛菾蛘蛢蛦蛓蛣蛚蛪蛝蛫蛜蛬蛩蛗蛨蛑衈衖衕袺裗袹袸裀袾袶袼袷袽袲褁裉覕覘覗觝觚觛詎詍訹詙詀詗詘詄詅詒詈詑詊詌詏豟貁貀貺貾貰貹貵趄趀趉跘跓跍跇跖跜跏跕跙跈跗跅軯軷軺"],
+["dc40","軹軦軮軥軵軧軨軶軫軱軬軴軩逭逴逯鄆鄬鄄郿郼鄈郹郻鄁鄀鄇鄅鄃酡酤酟酢酠鈁鈊鈥鈃鈚鈦鈏鈌鈀鈒釿釽鈆鈄鈧鈂鈜鈤鈙鈗鈅鈖镻閍閌閐隇陾隈"],
+["dca1","隉隃隀雂雈雃雱雰靬靰靮頇颩飫鳦黹亃亄亶傽傿僆傮僄僊傴僈僂傰僁傺傱僋僉傶傸凗剺剸剻剼嗃嗛嗌嗐嗋嗊嗝嗀嗔嗄嗩喿嗒喍嗏嗕嗢嗖嗈嗲嗍嗙嗂圔塓塨塤塏塍塉塯塕塎塝塙塥塛堽塣塱壼嫇嫄嫋媺媸媱媵媰媿嫈媻嫆"],
+["dd40","媷嫀嫊媴媶嫍媹媐寖寘寙尟尳嵱嵣嵊嵥嵲嵬嵞嵨嵧嵢巰幏幎幊幍幋廅廌廆廋廇彀徯徭惷慉慊愫慅愶愲愮慆愯慏愩慀戠酨戣戥戤揅揱揫搐搒搉搠搤"],
+["dda1","搳摃搟搕搘搹搷搢搣搌搦搰搨摁搵搯搊搚摀搥搧搋揧搛搮搡搎敯斒旓暆暌暕暐暋暊暙暔晸朠楦楟椸楎楢楱椿楅楪椹楂楗楙楺楈楉椵楬椳椽楥棰楸椴楩楀楯楄楶楘楁楴楌椻楋椷楜楏楑椲楒椯楻椼歆歅歃歂歈歁殛嗀毻毼"],
+["de40","毹毷毸溛滖滈溏滀溟溓溔溠溱溹滆滒溽滁溞滉溷溰滍溦滏溲溾滃滜滘溙溒溎溍溤溡溿溳滐滊溗溮溣煇煔煒煣煠煁煝煢煲煸煪煡煂煘煃煋煰煟煐煓"],
+["dea1","煄煍煚牏犍犌犑犐犎猼獂猻猺獀獊獉瑄瑊瑋瑒瑑瑗瑀瑏瑐瑎瑂瑆瑍瑔瓡瓿瓾瓽甝畹畷榃痯瘏瘃痷痾痼痹痸瘐痻痶痭痵痽皙皵盝睕睟睠睒睖睚睩睧睔睙睭矠碇碚碔碏碄碕碅碆碡碃硹碙碀碖硻祼禂祽祹稑稘稙稒稗稕稢稓"],
+["df40","稛稐窣窢窞竫筦筤筭筴筩筲筥筳筱筰筡筸筶筣粲粴粯綈綆綀綍絿綅絺綎絻綃絼綌綔綄絽綒罭罫罧罨罬羦羥羧翛翜耡腤腠腷腜腩腛腢腲朡腞腶腧腯"],
+["dfa1","腄腡舝艉艄艀艂艅蓱萿葖葶葹蒏蒍葥葑葀蒆葧萰葍葽葚葙葴葳葝蔇葞萷萺萴葺葃葸萲葅萩菙葋萯葂萭葟葰萹葎葌葒葯蓅蒎萻葇萶萳葨葾葄萫葠葔葮葐蜋蜄蛷蜌蛺蛖蛵蝍蛸蜎蜉蜁蛶蜍蜅裖裋裍裎裞裛裚裌裐覅覛觟觥觤"],
+["e040","觡觠觢觜触詶誆詿詡訿詷誂誄詵誃誁詴詺谼豋豊豥豤豦貆貄貅賌赨赩趑趌趎趏趍趓趔趐趒跰跠跬跱跮跐跩跣跢跧跲跫跴輆軿輁輀輅輇輈輂輋遒逿"],
+["e0a1","遄遉逽鄐鄍鄏鄑鄖鄔鄋鄎酮酯鉈鉒鈰鈺鉦鈳鉥鉞銃鈮鉊鉆鉭鉬鉏鉠鉧鉯鈶鉡鉰鈱鉔鉣鉐鉲鉎鉓鉌鉖鈲閟閜閞閛隒隓隑隗雎雺雽雸雵靳靷靸靲頏頍頎颬飶飹馯馲馰馵骭骫魛鳪鳭鳧麀黽僦僔僗僨僳僛僪僝僤僓僬僰僯僣僠"],
+["e140","凘劀劁勩勫匰厬嘧嘕嘌嘒嗼嘏嘜嘁嘓嘂嗺嘝嘄嗿嗹墉塼墐墘墆墁塿塴墋塺墇墑墎塶墂墈塻墔墏壾奫嫜嫮嫥嫕嫪嫚嫭嫫嫳嫢嫠嫛嫬嫞嫝嫙嫨嫟孷寠"],
+["e1a1","寣屣嶂嶀嵽嶆嵺嶁嵷嶊嶉嶈嵾嵼嶍嵹嵿幘幙幓廘廑廗廎廜廕廙廒廔彄彃彯徶愬愨慁慞慱慳慒慓慲慬憀慴慔慺慛慥愻慪慡慖戩戧戫搫摍摛摝摴摶摲摳摽摵摦撦摎撂摞摜摋摓摠摐摿搿摬摫摙摥摷敳斠暡暠暟朅朄朢榱榶槉"],
+["e240","榠槎榖榰榬榼榑榙榎榧榍榩榾榯榿槄榽榤槔榹槊榚槏榳榓榪榡榞槙榗榐槂榵榥槆歊歍歋殞殟殠毃毄毾滎滵滱漃漥滸漷滻漮漉潎漙漚漧漘漻漒滭漊"],
+["e2a1","漶潳滹滮漭潀漰漼漵滫漇漎潃漅滽滶漹漜滼漺漟漍漞漈漡熇熐熉熀熅熂熏煻熆熁熗牄牓犗犕犓獃獍獑獌瑢瑳瑱瑵瑲瑧瑮甀甂甃畽疐瘖瘈瘌瘕瘑瘊瘔皸瞁睼瞅瞂睮瞀睯睾瞃碲碪碴碭碨硾碫碞碥碠碬碢碤禘禊禋禖禕禔禓"],
+["e340","禗禈禒禐稫穊稰稯稨稦窨窫窬竮箈箜箊箑箐箖箍箌箛箎箅箘劄箙箤箂粻粿粼粺綧綷緂綣綪緁緀緅綝緎緄緆緋緌綯綹綖綼綟綦綮綩綡緉罳翢翣翥翞"],
+["e3a1","耤聝聜膉膆膃膇膍膌膋舕蒗蒤蒡蒟蒺蓎蓂蒬蒮蒫蒹蒴蓁蓍蒪蒚蒱蓐蒝蒧蒻蒢蒔蓇蓌蒛蒩蒯蒨蓖蒘蒶蓏蒠蓗蓔蓒蓛蒰蒑虡蜳蜣蜨蝫蝀蜮蜞蜡蜙蜛蝃蜬蝁蜾蝆蜠蜲蜪蜭蜼蜒蜺蜱蜵蝂蜦蜧蜸蜤蜚蜰蜑裷裧裱裲裺裾裮裼裶裻"],
+["e440","裰裬裫覝覡覟覞觩觫觨誫誙誋誒誏誖谽豨豩賕賏賗趖踉踂跿踍跽踊踃踇踆踅跾踀踄輐輑輎輍鄣鄜鄠鄢鄟鄝鄚鄤鄡鄛酺酲酹酳銥銤鉶銛鉺銠銔銪銍"],
+["e4a1","銦銚銫鉹銗鉿銣鋮銎銂銕銢鉽銈銡銊銆銌銙銧鉾銇銩銝銋鈭隞隡雿靘靽靺靾鞃鞀鞂靻鞄鞁靿韎韍頖颭颮餂餀餇馝馜駃馹馻馺駂馽駇骱髣髧鬾鬿魠魡魟鳱鳲鳵麧僿儃儰僸儆儇僶僾儋儌僽儊劋劌勱勯噈噂噌嘵噁噊噉噆噘"],
+["e540","噚噀嘳嘽嘬嘾嘸嘪嘺圚墫墝墱墠墣墯墬墥墡壿嫿嫴嫽嫷嫶嬃嫸嬂嫹嬁嬇嬅嬏屧嶙嶗嶟嶒嶢嶓嶕嶠嶜嶡嶚嶞幩幝幠幜緳廛廞廡彉徲憋憃慹憱憰憢憉"],
+["e5a1","憛憓憯憭憟憒憪憡憍慦憳戭摮摰撖撠撅撗撜撏撋撊撌撣撟摨撱撘敶敺敹敻斲斳暵暰暩暲暷暪暯樀樆樗槥槸樕槱槤樠槿槬槢樛樝槾樧槲槮樔槷槧橀樈槦槻樍槼槫樉樄樘樥樏槶樦樇槴樖歑殥殣殢殦氁氀毿氂潁漦潾澇濆澒"],
+["e640","澍澉澌潢潏澅潚澖潶潬澂潕潲潒潐潗澔澓潝漀潡潫潽潧澐潓澋潩潿澕潣潷潪潻熲熯熛熰熠熚熩熵熝熥熞熤熡熪熜熧熳犘犚獘獒獞獟獠獝獛獡獚獙"],
+["e6a1","獢璇璉璊璆璁瑽璅璈瑼瑹甈甇畾瘥瘞瘙瘝瘜瘣瘚瘨瘛皜皝皞皛瞍瞏瞉瞈磍碻磏磌磑磎磔磈磃磄磉禚禡禠禜禢禛歶稹窲窴窳箷篋箾箬篎箯箹篊箵糅糈糌糋緷緛緪緧緗緡縃緺緦緶緱緰緮緟罶羬羰羭翭翫翪翬翦翨聤聧膣膟"],
+["e740","膞膕膢膙膗舖艏艓艒艐艎艑蔤蔻蔏蔀蔩蔎蔉蔍蔟蔊蔧蔜蓻蔫蓺蔈蔌蓴蔪蓲蔕蓷蓫蓳蓼蔒蓪蓩蔖蓾蔨蔝蔮蔂蓽蔞蓶蔱蔦蓧蓨蓰蓯蓹蔘蔠蔰蔋蔙蔯虢"],
+["e7a1","蝖蝣蝤蝷蟡蝳蝘蝔蝛蝒蝡蝚蝑蝞蝭蝪蝐蝎蝟蝝蝯蝬蝺蝮蝜蝥蝏蝻蝵蝢蝧蝩衚褅褌褔褋褗褘褙褆褖褑褎褉覢覤覣觭觰觬諏諆誸諓諑諔諕誻諗誾諀諅諘諃誺誽諙谾豍貏賥賟賙賨賚賝賧趠趜趡趛踠踣踥踤踮踕踛踖踑踙踦踧"],
+["e840","踔踒踘踓踜踗踚輬輤輘輚輠輣輖輗遳遰遯遧遫鄯鄫鄩鄪鄲鄦鄮醅醆醊醁醂醄醀鋐鋃鋄鋀鋙銶鋏鋱鋟鋘鋩鋗鋝鋌鋯鋂鋨鋊鋈鋎鋦鋍鋕鋉鋠鋞鋧鋑鋓"],
+["e8a1","銵鋡鋆銴镼閬閫閮閰隤隢雓霅霈霂靚鞊鞎鞈韐韏頞頝頦頩頨頠頛頧颲餈飺餑餔餖餗餕駜駍駏駓駔駎駉駖駘駋駗駌骳髬髫髳髲髱魆魃魧魴魱魦魶魵魰魨魤魬鳼鳺鳽鳿鳷鴇鴀鳹鳻鴈鴅鴄麃黓鼏鼐儜儓儗儚儑凞匴叡噰噠噮"],
+["e940","噳噦噣噭噲噞噷圜圛壈墽壉墿墺壂墼壆嬗嬙嬛嬡嬔嬓嬐嬖嬨嬚嬠嬞寯嶬嶱嶩嶧嶵嶰嶮嶪嶨嶲嶭嶯嶴幧幨幦幯廩廧廦廨廥彋徼憝憨憖懅憴懆懁懌憺"],
+["e9a1","憿憸憌擗擖擐擏擉撽撉擃擛擳擙攳敿敼斢曈暾曀曊曋曏暽暻暺曌朣樴橦橉橧樲橨樾橝橭橶橛橑樨橚樻樿橁橪橤橐橏橔橯橩橠樼橞橖橕橍橎橆歕歔歖殧殪殫毈毇氄氃氆澭濋澣濇澼濎濈潞濄澽澞濊澨瀄澥澮澺澬澪濏澿澸"],
+["ea40","澢濉澫濍澯澲澰燅燂熿熸燖燀燁燋燔燊燇燏熽燘熼燆燚燛犝犞獩獦獧獬獥獫獪瑿璚璠璔璒璕璡甋疀瘯瘭瘱瘽瘳瘼瘵瘲瘰皻盦瞚瞝瞡瞜瞛瞢瞣瞕瞙"],
+["eaa1","瞗磝磩磥磪磞磣磛磡磢磭磟磠禤穄穈穇窶窸窵窱窷篞篣篧篝篕篥篚篨篹篔篪篢篜篫篘篟糒糔糗糐糑縒縡縗縌縟縠縓縎縜縕縚縢縋縏縖縍縔縥縤罃罻罼罺羱翯耪耩聬膱膦膮膹膵膫膰膬膴膲膷膧臲艕艖艗蕖蕅蕫蕍蕓蕡蕘"],
+["eb40","蕀蕆蕤蕁蕢蕄蕑蕇蕣蔾蕛蕱蕎蕮蕵蕕蕧蕠薌蕦蕝蕔蕥蕬虣虥虤螛螏螗螓螒螈螁螖螘蝹螇螣螅螐螑螝螄螔螜螚螉褞褦褰褭褮褧褱褢褩褣褯褬褟觱諠"],
+["eba1","諢諲諴諵諝謔諤諟諰諈諞諡諨諿諯諻貑貒貐賵賮賱賰賳赬赮趥趧踳踾踸蹀蹅踶踼踽蹁踰踿躽輶輮輵輲輹輷輴遶遹遻邆郺鄳鄵鄶醓醐醑醍醏錧錞錈錟錆錏鍺錸錼錛錣錒錁鍆錭錎錍鋋錝鋺錥錓鋹鋷錴錂錤鋿錩錹錵錪錔錌"],
+["ec40","錋鋾錉錀鋻錖閼闍閾閹閺閶閿閵閽隩雔霋霒霐鞙鞗鞔韰韸頵頯頲餤餟餧餩馞駮駬駥駤駰駣駪駩駧骹骿骴骻髶髺髹髷鬳鮀鮅鮇魼魾魻鮂鮓鮒鮐魺鮕"],
+["eca1","魽鮈鴥鴗鴠鴞鴔鴩鴝鴘鴢鴐鴙鴟麈麆麇麮麭黕黖黺鼒鼽儦儥儢儤儠儩勴嚓嚌嚍嚆嚄嚃噾嚂噿嚁壖壔壏壒嬭嬥嬲嬣嬬嬧嬦嬯嬮孻寱寲嶷幬幪徾徻懃憵憼懧懠懥懤懨懞擯擩擣擫擤擨斁斀斶旚曒檍檖檁檥檉檟檛檡檞檇檓檎"],
+["ed40","檕檃檨檤檑橿檦檚檅檌檒歛殭氉濌澩濴濔濣濜濭濧濦濞濲濝濢濨燡燱燨燲燤燰燢獳獮獯璗璲璫璐璪璭璱璥璯甐甑甒甏疄癃癈癉癇皤盩瞵瞫瞲瞷瞶"],
+["eda1","瞴瞱瞨矰磳磽礂磻磼磲礅磹磾礄禫禨穜穛穖穘穔穚窾竀竁簅簏篲簀篿篻簎篴簋篳簂簉簃簁篸篽簆篰篱簐簊糨縭縼繂縳顈縸縪繉繀繇縩繌縰縻縶繄縺罅罿罾罽翴翲耬膻臄臌臊臅臇膼臩艛艚艜薃薀薏薧薕薠薋薣蕻薤薚薞"],
+["ee40","蕷蕼薉薡蕺蕸蕗薎薖薆薍薙薝薁薢薂薈薅蕹蕶薘薐薟虨螾螪螭蟅螰螬螹螵螼螮蟉蟃蟂蟌螷螯蟄蟊螴螶螿螸螽蟞螲褵褳褼褾襁襒褷襂覭覯覮觲觳謞"],
+["eea1","謘謖謑謅謋謢謏謒謕謇謍謈謆謜謓謚豏豰豲豱豯貕貔賹赯蹎蹍蹓蹐蹌蹇轃轀邅遾鄸醚醢醛醙醟醡醝醠鎡鎃鎯鍤鍖鍇鍼鍘鍜鍶鍉鍐鍑鍠鍭鎏鍌鍪鍹鍗鍕鍒鍏鍱鍷鍻鍡鍞鍣鍧鎀鍎鍙闇闀闉闃闅閷隮隰隬霠霟霘霝霙鞚鞡鞜"],
+["ef40","鞞鞝韕韔韱顁顄顊顉顅顃餥餫餬餪餳餲餯餭餱餰馘馣馡騂駺駴駷駹駸駶駻駽駾駼騃骾髾髽鬁髼魈鮚鮨鮞鮛鮦鮡鮥鮤鮆鮢鮠鮯鴳鵁鵧鴶鴮鴯鴱鴸鴰"],
+["efa1","鵅鵂鵃鴾鴷鵀鴽翵鴭麊麉麍麰黈黚黻黿鼤鼣鼢齔龠儱儭儮嚘嚜嚗嚚嚝嚙奰嬼屩屪巀幭幮懘懟懭懮懱懪懰懫懖懩擿攄擽擸攁攃擼斔旛曚曛曘櫅檹檽櫡櫆檺檶檷櫇檴檭歞毉氋瀇瀌瀍瀁瀅瀔瀎濿瀀濻瀦濼濷瀊爁燿燹爃燽獶"],
+["f040","璸瓀璵瓁璾璶璻瓂甔甓癜癤癙癐癓癗癚皦皽盬矂瞺磿礌礓礔礉礐礒礑禭禬穟簜簩簙簠簟簭簝簦簨簢簥簰繜繐繖繣繘繢繟繑繠繗繓羵羳翷翸聵臑臒"],
+["f0a1","臐艟艞薴藆藀藃藂薳薵薽藇藄薿藋藎藈藅薱薶藒蘤薸薷薾虩蟧蟦蟢蟛蟫蟪蟥蟟蟳蟤蟔蟜蟓蟭蟘蟣螤蟗蟙蠁蟴蟨蟝襓襋襏襌襆襐襑襉謪謧謣謳謰謵譇謯謼謾謱謥謷謦謶謮謤謻謽謺豂豵貙貘貗賾贄贂贀蹜蹢蹠蹗蹖蹞蹥蹧"],
+["f140","蹛蹚蹡蹝蹩蹔轆轇轈轋鄨鄺鄻鄾醨醥醧醯醪鎵鎌鎒鎷鎛鎝鎉鎧鎎鎪鎞鎦鎕鎈鎙鎟鎍鎱鎑鎲鎤鎨鎴鎣鎥闒闓闑隳雗雚巂雟雘雝霣霢霥鞬鞮鞨鞫鞤鞪"],
+["f1a1","鞢鞥韗韙韖韘韺顐顑顒颸饁餼餺騏騋騉騍騄騑騊騅騇騆髀髜鬈鬄鬅鬩鬵魊魌魋鯇鯆鯃鮿鯁鮵鮸鯓鮶鯄鮹鮽鵜鵓鵏鵊鵛鵋鵙鵖鵌鵗鵒鵔鵟鵘鵚麎麌黟鼁鼀鼖鼥鼫鼪鼩鼨齌齕儴儵劖勷厴嚫嚭嚦嚧嚪嚬壚壝壛夒嬽嬾嬿巃幰"],
+["f240","徿懻攇攐攍攉攌攎斄旞旝曞櫧櫠櫌櫑櫙櫋櫟櫜櫐櫫櫏櫍櫞歠殰氌瀙瀧瀠瀖瀫瀡瀢瀣瀩瀗瀤瀜瀪爌爊爇爂爅犥犦犤犣犡瓋瓅璷瓃甖癠矉矊矄矱礝礛"],
+["f2a1","礡礜礗礞禰穧穨簳簼簹簬簻糬糪繶繵繸繰繷繯繺繲繴繨罋罊羃羆羷翽翾聸臗臕艤艡艣藫藱藭藙藡藨藚藗藬藲藸藘藟藣藜藑藰藦藯藞藢蠀蟺蠃蟶蟷蠉蠌蠋蠆蟼蠈蟿蠊蠂襢襚襛襗襡襜襘襝襙覈覷覶觶譐譈譊譀譓譖譔譋譕"],
+["f340","譑譂譒譗豃豷豶貚贆贇贉趬趪趭趫蹭蹸蹳蹪蹯蹻軂轒轑轏轐轓辴酀鄿醰醭鏞鏇鏏鏂鏚鏐鏹鏬鏌鏙鎩鏦鏊鏔鏮鏣鏕鏄鏎鏀鏒鏧镽闚闛雡霩霫霬霨霦"],
+["f3a1","鞳鞷鞶韝韞韟顜顙顝顗颿颽颻颾饈饇饃馦馧騚騕騥騝騤騛騢騠騧騣騞騜騔髂鬋鬊鬎鬌鬷鯪鯫鯠鯞鯤鯦鯢鯰鯔鯗鯬鯜鯙鯥鯕鯡鯚鵷鶁鶊鶄鶈鵱鶀鵸鶆鶋鶌鵽鵫鵴鵵鵰鵩鶅鵳鵻鶂鵯鵹鵿鶇鵨麔麑黀黼鼭齀齁齍齖齗齘匷嚲"],
+["f440","嚵嚳壣孅巆巇廮廯忀忁懹攗攖攕攓旟曨曣曤櫳櫰櫪櫨櫹櫱櫮櫯瀼瀵瀯瀷瀴瀱灂瀸瀿瀺瀹灀瀻瀳灁爓爔犨獽獼璺皫皪皾盭矌矎矏矍矲礥礣礧礨礤礩"],
+["f4a1","禲穮穬穭竷籉籈籊籇籅糮繻繾纁纀羺翿聹臛臙舋艨艩蘢藿蘁藾蘛蘀藶蘄蘉蘅蘌藽蠙蠐蠑蠗蠓蠖襣襦覹觷譠譪譝譨譣譥譧譭趮躆躈躄轙轖轗轕轘轚邍酃酁醷醵醲醳鐋鐓鏻鐠鐏鐔鏾鐕鐐鐨鐙鐍鏵鐀鏷鐇鐎鐖鐒鏺鐉鏸鐊鏿"],
+["f540","鏼鐌鏶鐑鐆闞闠闟霮霯鞹鞻韽韾顠顢顣顟飁飂饐饎饙饌饋饓騲騴騱騬騪騶騩騮騸騭髇髊髆鬐鬒鬑鰋鰈鯷鰅鰒鯸鱀鰇鰎鰆鰗鰔鰉鶟鶙鶤鶝鶒鶘鶐鶛"],
+["f5a1","鶠鶔鶜鶪鶗鶡鶚鶢鶨鶞鶣鶿鶩鶖鶦鶧麙麛麚黥黤黧黦鼰鼮齛齠齞齝齙龑儺儹劘劗囃嚽嚾孈孇巋巏廱懽攛欂櫼欃櫸欀灃灄灊灈灉灅灆爝爚爙獾甗癪矐礭礱礯籔籓糲纊纇纈纋纆纍罍羻耰臝蘘蘪蘦蘟蘣蘜蘙蘧蘮蘡蘠蘩蘞蘥"],
+["f640","蠩蠝蠛蠠蠤蠜蠫衊襭襩襮襫觺譹譸譅譺譻贐贔趯躎躌轞轛轝酆酄酅醹鐿鐻鐶鐩鐽鐼鐰鐹鐪鐷鐬鑀鐱闥闤闣霵霺鞿韡顤飉飆飀饘饖騹騽驆驄驂驁騺"],
+["f6a1","騿髍鬕鬗鬘鬖鬺魒鰫鰝鰜鰬鰣鰨鰩鰤鰡鶷鶶鶼鷁鷇鷊鷏鶾鷅鷃鶻鶵鷎鶹鶺鶬鷈鶱鶭鷌鶳鷍鶲鹺麜黫黮黭鼛鼘鼚鼱齎齥齤龒亹囆囅囋奱孋孌巕巑廲攡攠攦攢欋欈欉氍灕灖灗灒爞爟犩獿瓘瓕瓙瓗癭皭礵禴穰穱籗籜籙籛籚"],
+["f740","糴糱纑罏羇臞艫蘴蘵蘳蘬蘲蘶蠬蠨蠦蠪蠥襱覿覾觻譾讄讂讆讅譿贕躕躔躚躒躐躖躗轠轢酇鑌鑐鑊鑋鑏鑇鑅鑈鑉鑆霿韣顪顩飋饔饛驎驓驔驌驏驈驊"],
+["f7a1","驉驒驐髐鬙鬫鬻魖魕鱆鱈鰿鱄鰹鰳鱁鰼鰷鰴鰲鰽鰶鷛鷒鷞鷚鷋鷐鷜鷑鷟鷩鷙鷘鷖鷵鷕鷝麶黰鼵鼳鼲齂齫龕龢儽劙壨壧奲孍巘蠯彏戁戃戄攩攥斖曫欑欒欏毊灛灚爢玂玁玃癰矔籧籦纕艬蘺虀蘹蘼蘱蘻蘾蠰蠲蠮蠳襶襴襳觾"],
+["f840","讌讎讋讈豅贙躘轤轣醼鑢鑕鑝鑗鑞韄韅頀驖驙鬞鬟鬠鱒鱘鱐鱊鱍鱋鱕鱙鱌鱎鷻鷷鷯鷣鷫鷸鷤鷶鷡鷮鷦鷲鷰鷢鷬鷴鷳鷨鷭黂黐黲黳鼆鼜鼸鼷鼶齃齏"],
+["f8a1","齱齰齮齯囓囍孎屭攭曭曮欓灟灡灝灠爣瓛瓥矕礸禷禶籪纗羉艭虃蠸蠷蠵衋讔讕躞躟躠躝醾醽釂鑫鑨鑩雥靆靃靇韇韥驞髕魙鱣鱧鱦鱢鱞鱠鸂鷾鸇鸃鸆鸅鸀鸁鸉鷿鷽鸄麠鼞齆齴齵齶囔攮斸欘欙欗欚灢爦犪矘矙礹籩籫糶纚"],
+["f940","纘纛纙臠臡虆虇虈襹襺襼襻觿讘讙躥躤躣鑮鑭鑯鑱鑳靉顲饟鱨鱮鱭鸋鸍鸐鸏鸒鸑麡黵鼉齇齸齻齺齹圞灦籯蠼趲躦釃鑴鑸鑶鑵驠鱴鱳鱱鱵鸔鸓黶鼊"],
+["f9a1","龤灨灥糷虪蠾蠽蠿讞貜躩軉靋顳顴飌饡馫驤驦驧鬤鸕鸗齈戇欞爧虌躨钂钀钁驩驨鬮鸙爩虋讟钃鱹麷癵驫鱺鸝灩灪麤齾齉龘碁銹裏墻恒粧嫺╔╦╗╠╬╣╚╩╝╒╤╕╞╪╡╘╧╛╓╥╖╟╫╢╙╨╜║═╭╮╰╯▓"]
+]
diff --git a/backend/node_modules/iconv-lite/encodings/tables/eucjp.json b/backend/node_modules/iconv-lite/encodings/tables/eucjp.json
new file mode 100644
index 0000000..4fa61ca
--- /dev/null
+++ b/backend/node_modules/iconv-lite/encodings/tables/eucjp.json
@@ -0,0 +1,182 @@
+[
+["0","\u0000",127],
+["8ea1","｡",62],
+["a1a1","　、。，．・：；？！゛゜´｀¨＾￣＿ヽヾゝゞ〃仝々〆〇ー―‐／＼～∥｜…‥‘’“”（）〔〕［］｛｝〈",9,"＋－±×÷＝≠＜＞≦≧∞∴♂♀°′″℃￥＄￠￡％＃＆＊＠§☆★○●◎◇"],
+["a2a1","◆□■△▲▽▼※〒→←↑↓〓"],
+["a2ba","∈∋⊆⊇⊂⊃∪∩"],
+["a2ca","∧∨￢⇒⇔∀∃"],
+["a2dc","∠⊥⌒∂∇≡≒≪≫√∽∝∵∫∬"],
+["a2f2","ʼn♯♭♪†‡¶"],
+["a2fe","◯"],
+["a3b0","０",9],
+["a3c1","Ａ",25],
+["a3e1","ａ",25],
+["a4a1","ぁ",82],
+["a5a1","ァ",85],
+["a6a1","Α",16,"Σ",6],
+["a6c1","α",16,"σ",6],
+["a7a1","А",5,"ЁЖ",25],
+["a7d1","а",5,"ёж",25],
+["a8a1","─│┌┐┘└├┬┤┴┼━┃┏┓┛┗┣┳┫┻╋┠┯┨┷┿┝┰┥┸╂"],
+["ada1","①",19,"Ⅰ",9],
+["adc0","㍉㌔㌢㍍㌘㌧㌃㌶㍑㍗㌍㌦㌣㌫㍊㌻㎜㎝㎞㎎㎏㏄㎡"],
+["addf","㍻〝〟№㏍℡㊤",4,"㈱㈲㈹㍾㍽㍼≒≡∫∮∑√⊥∠∟⊿∵∩∪"],
+["b0a1","亜唖娃阿哀愛挨姶逢葵茜穐悪握渥旭葦芦鯵梓圧斡扱宛姐虻飴絢綾鮎或粟袷安庵按暗案闇鞍杏以伊位依偉囲夷委威尉惟意慰易椅為畏異移維緯胃萎衣謂違遺医井亥域育郁磯一壱溢逸稲茨芋鰯允印咽員因姻引飲淫胤蔭"],
+["b1a1","院陰隠韻吋右宇烏羽迂雨卯鵜窺丑碓臼渦嘘唄欝蔚鰻姥厩浦瓜閏噂云運雲荏餌叡営嬰影映曳栄永泳洩瑛盈穎頴英衛詠鋭液疫益駅悦謁越閲榎厭円園堰奄宴延怨掩援沿演炎焔煙燕猿縁艶苑薗遠鉛鴛塩於汚甥凹央奥往応"],
+["b2a1","押旺横欧殴王翁襖鴬鴎黄岡沖荻億屋憶臆桶牡乙俺卸恩温穏音下化仮何伽価佳加可嘉夏嫁家寡科暇果架歌河火珂禍禾稼箇花苛茄荷華菓蝦課嘩貨迦過霞蚊俄峨我牙画臥芽蛾賀雅餓駕介会解回塊壊廻快怪悔恢懐戒拐改"],
+["b3a1","魁晦械海灰界皆絵芥蟹開階貝凱劾外咳害崖慨概涯碍蓋街該鎧骸浬馨蛙垣柿蛎鈎劃嚇各廓拡撹格核殻獲確穫覚角赫較郭閣隔革学岳楽額顎掛笠樫橿梶鰍潟割喝恰括活渇滑葛褐轄且鰹叶椛樺鞄株兜竃蒲釜鎌噛鴨栢茅萱"],
+["b4a1","粥刈苅瓦乾侃冠寒刊勘勧巻喚堪姦完官寛干幹患感慣憾換敢柑桓棺款歓汗漢澗潅環甘監看竿管簡緩缶翰肝艦莞観諌貫還鑑間閑関陥韓館舘丸含岸巌玩癌眼岩翫贋雁頑顔願企伎危喜器基奇嬉寄岐希幾忌揮机旗既期棋棄"],
+["b5a1","機帰毅気汽畿祈季稀紀徽規記貴起軌輝飢騎鬼亀偽儀妓宜戯技擬欺犠疑祇義蟻誼議掬菊鞠吉吃喫桔橘詰砧杵黍却客脚虐逆丘久仇休及吸宮弓急救朽求汲泣灸球究窮笈級糾給旧牛去居巨拒拠挙渠虚許距鋸漁禦魚亨享京"],
+["b6a1","供侠僑兇競共凶協匡卿叫喬境峡強彊怯恐恭挟教橋況狂狭矯胸脅興蕎郷鏡響饗驚仰凝尭暁業局曲極玉桐粁僅勤均巾錦斤欣欽琴禁禽筋緊芹菌衿襟謹近金吟銀九倶句区狗玖矩苦躯駆駈駒具愚虞喰空偶寓遇隅串櫛釧屑屈"],
+["b7a1","掘窟沓靴轡窪熊隈粂栗繰桑鍬勲君薫訓群軍郡卦袈祁係傾刑兄啓圭珪型契形径恵慶慧憩掲携敬景桂渓畦稽系経継繋罫茎荊蛍計詣警軽頚鶏芸迎鯨劇戟撃激隙桁傑欠決潔穴結血訣月件倹倦健兼券剣喧圏堅嫌建憲懸拳捲"],
+["b8a1","検権牽犬献研硯絹県肩見謙賢軒遣鍵険顕験鹸元原厳幻弦減源玄現絃舷言諺限乎個古呼固姑孤己庫弧戸故枯湖狐糊袴股胡菰虎誇跨鈷雇顧鼓五互伍午呉吾娯後御悟梧檎瑚碁語誤護醐乞鯉交佼侯候倖光公功効勾厚口向"],
+["b9a1","后喉坑垢好孔孝宏工巧巷幸広庚康弘恒慌抗拘控攻昂晃更杭校梗構江洪浩港溝甲皇硬稿糠紅紘絞綱耕考肯肱腔膏航荒行衡講貢購郊酵鉱砿鋼閤降項香高鴻剛劫号合壕拷濠豪轟麹克刻告国穀酷鵠黒獄漉腰甑忽惚骨狛込"],
+["baa1","此頃今困坤墾婚恨懇昏昆根梱混痕紺艮魂些佐叉唆嵯左差査沙瑳砂詐鎖裟坐座挫債催再最哉塞妻宰彩才採栽歳済災采犀砕砦祭斎細菜裁載際剤在材罪財冴坂阪堺榊肴咲崎埼碕鷺作削咋搾昨朔柵窄策索錯桜鮭笹匙冊刷"],
+["bba1","察拶撮擦札殺薩雑皐鯖捌錆鮫皿晒三傘参山惨撒散桟燦珊産算纂蚕讃賛酸餐斬暫残仕仔伺使刺司史嗣四士始姉姿子屍市師志思指支孜斯施旨枝止死氏獅祉私糸紙紫肢脂至視詞詩試誌諮資賜雌飼歯事似侍児字寺慈持時"],
+["bca1","次滋治爾璽痔磁示而耳自蒔辞汐鹿式識鴫竺軸宍雫七叱執失嫉室悉湿漆疾質実蔀篠偲柴芝屡蕊縞舎写射捨赦斜煮社紗者謝車遮蛇邪借勺尺杓灼爵酌釈錫若寂弱惹主取守手朱殊狩珠種腫趣酒首儒受呪寿授樹綬需囚収周"],
+["bda1","宗就州修愁拾洲秀秋終繍習臭舟蒐衆襲讐蹴輯週酋酬集醜什住充十従戎柔汁渋獣縦重銃叔夙宿淑祝縮粛塾熟出術述俊峻春瞬竣舜駿准循旬楯殉淳準潤盾純巡遵醇順処初所暑曙渚庶緒署書薯藷諸助叙女序徐恕鋤除傷償"],
+["bea1","勝匠升召哨商唱嘗奨妾娼宵将小少尚庄床廠彰承抄招掌捷昇昌昭晶松梢樟樵沼消渉湘焼焦照症省硝礁祥称章笑粧紹肖菖蒋蕉衝裳訟証詔詳象賞醤鉦鍾鐘障鞘上丈丞乗冗剰城場壌嬢常情擾条杖浄状畳穣蒸譲醸錠嘱埴飾"],
+["bfa1","拭植殖燭織職色触食蝕辱尻伸信侵唇娠寝審心慎振新晋森榛浸深申疹真神秦紳臣芯薪親診身辛進針震人仁刃塵壬尋甚尽腎訊迅陣靭笥諏須酢図厨逗吹垂帥推水炊睡粋翠衰遂酔錐錘随瑞髄崇嵩数枢趨雛据杉椙菅頗雀裾"],
+["c0a1","澄摺寸世瀬畝是凄制勢姓征性成政整星晴棲栖正清牲生盛精聖声製西誠誓請逝醒青静斉税脆隻席惜戚斥昔析石積籍績脊責赤跡蹟碩切拙接摂折設窃節説雪絶舌蝉仙先千占宣専尖川戦扇撰栓栴泉浅洗染潜煎煽旋穿箭線"],
+["c1a1","繊羨腺舛船薦詮賎践選遷銭銑閃鮮前善漸然全禅繕膳糎噌塑岨措曾曽楚狙疏疎礎祖租粗素組蘇訴阻遡鼠僧創双叢倉喪壮奏爽宋層匝惣想捜掃挿掻操早曹巣槍槽漕燥争痩相窓糟総綜聡草荘葬蒼藻装走送遭鎗霜騒像増憎"],
+["c2a1","臓蔵贈造促側則即息捉束測足速俗属賊族続卒袖其揃存孫尊損村遜他多太汰詑唾堕妥惰打柁舵楕陀駄騨体堆対耐岱帯待怠態戴替泰滞胎腿苔袋貸退逮隊黛鯛代台大第醍題鷹滝瀧卓啄宅托択拓沢濯琢託鐸濁諾茸凧蛸只"],
+["c3a1","叩但達辰奪脱巽竪辿棚谷狸鱈樽誰丹単嘆坦担探旦歎淡湛炭短端箪綻耽胆蛋誕鍛団壇弾断暖檀段男談値知地弛恥智池痴稚置致蜘遅馳築畜竹筑蓄逐秩窒茶嫡着中仲宙忠抽昼柱注虫衷註酎鋳駐樗瀦猪苧著貯丁兆凋喋寵"],
+["c4a1","帖帳庁弔張彫徴懲挑暢朝潮牒町眺聴脹腸蝶調諜超跳銚長頂鳥勅捗直朕沈珍賃鎮陳津墜椎槌追鎚痛通塚栂掴槻佃漬柘辻蔦綴鍔椿潰坪壷嬬紬爪吊釣鶴亭低停偵剃貞呈堤定帝底庭廷弟悌抵挺提梯汀碇禎程締艇訂諦蹄逓"],
+["c5a1","邸鄭釘鼎泥摘擢敵滴的笛適鏑溺哲徹撤轍迭鉄典填天展店添纏甜貼転顛点伝殿澱田電兎吐堵塗妬屠徒斗杜渡登菟賭途都鍍砥砺努度土奴怒倒党冬凍刀唐塔塘套宕島嶋悼投搭東桃梼棟盗淘湯涛灯燈当痘祷等答筒糖統到"],
+["c6a1","董蕩藤討謄豆踏逃透鐙陶頭騰闘働動同堂導憧撞洞瞳童胴萄道銅峠鴇匿得徳涜特督禿篤毒独読栃橡凸突椴届鳶苫寅酉瀞噸屯惇敦沌豚遁頓呑曇鈍奈那内乍凪薙謎灘捺鍋楢馴縄畷南楠軟難汝二尼弐迩匂賑肉虹廿日乳入"],
+["c7a1","如尿韮任妊忍認濡禰祢寧葱猫熱年念捻撚燃粘乃廼之埜嚢悩濃納能脳膿農覗蚤巴把播覇杷波派琶破婆罵芭馬俳廃拝排敗杯盃牌背肺輩配倍培媒梅楳煤狽買売賠陪這蝿秤矧萩伯剥博拍柏泊白箔粕舶薄迫曝漠爆縛莫駁麦"],
+["c8a1","函箱硲箸肇筈櫨幡肌畑畠八鉢溌発醗髪伐罰抜筏閥鳩噺塙蛤隼伴判半反叛帆搬斑板氾汎版犯班畔繁般藩販範釆煩頒飯挽晩番盤磐蕃蛮匪卑否妃庇彼悲扉批披斐比泌疲皮碑秘緋罷肥被誹費避非飛樋簸備尾微枇毘琵眉美"],
+["c9a1","鼻柊稗匹疋髭彦膝菱肘弼必畢筆逼桧姫媛紐百謬俵彪標氷漂瓢票表評豹廟描病秒苗錨鋲蒜蛭鰭品彬斌浜瀕貧賓頻敏瓶不付埠夫婦富冨布府怖扶敷斧普浮父符腐膚芙譜負賦赴阜附侮撫武舞葡蕪部封楓風葺蕗伏副復幅服"],
+["caa1","福腹複覆淵弗払沸仏物鮒分吻噴墳憤扮焚奮粉糞紛雰文聞丙併兵塀幣平弊柄並蔽閉陛米頁僻壁癖碧別瞥蔑箆偏変片篇編辺返遍便勉娩弁鞭保舗鋪圃捕歩甫補輔穂募墓慕戊暮母簿菩倣俸包呆報奉宝峰峯崩庖抱捧放方朋"],
+["cba1","法泡烹砲縫胞芳萌蓬蜂褒訪豊邦鋒飽鳳鵬乏亡傍剖坊妨帽忘忙房暴望某棒冒紡肪膨謀貌貿鉾防吠頬北僕卜墨撲朴牧睦穆釦勃没殆堀幌奔本翻凡盆摩磨魔麻埋妹昧枚毎哩槙幕膜枕鮪柾鱒桝亦俣又抹末沫迄侭繭麿万慢満"],
+["cca1","漫蔓味未魅巳箕岬密蜜湊蓑稔脈妙粍民眠務夢無牟矛霧鵡椋婿娘冥名命明盟迷銘鳴姪牝滅免棉綿緬面麺摸模茂妄孟毛猛盲網耗蒙儲木黙目杢勿餅尤戻籾貰問悶紋門匁也冶夜爺耶野弥矢厄役約薬訳躍靖柳薮鑓愉愈油癒"],
+["cda1","諭輸唯佑優勇友宥幽悠憂揖有柚湧涌猶猷由祐裕誘遊邑郵雄融夕予余与誉輿預傭幼妖容庸揚揺擁曜楊様洋溶熔用窯羊耀葉蓉要謡踊遥陽養慾抑欲沃浴翌翼淀羅螺裸来莱頼雷洛絡落酪乱卵嵐欄濫藍蘭覧利吏履李梨理璃"],
+["cea1","痢裏裡里離陸律率立葎掠略劉流溜琉留硫粒隆竜龍侶慮旅虜了亮僚両凌寮料梁涼猟療瞭稜糧良諒遼量陵領力緑倫厘林淋燐琳臨輪隣鱗麟瑠塁涙累類令伶例冷励嶺怜玲礼苓鈴隷零霊麗齢暦歴列劣烈裂廉恋憐漣煉簾練聯"],
+["cfa1","蓮連錬呂魯櫓炉賂路露労婁廊弄朗楼榔浪漏牢狼篭老聾蝋郎六麓禄肋録論倭和話歪賄脇惑枠鷲亙亘鰐詫藁蕨椀湾碗腕"],
+["d0a1","弌丐丕个丱丶丼丿乂乖乘亂亅豫亊舒弍于亞亟亠亢亰亳亶从仍仄仆仂仗仞仭仟价伉佚估佛佝佗佇佶侈侏侘佻佩佰侑佯來侖儘俔俟俎俘俛俑俚俐俤俥倚倨倔倪倥倅伜俶倡倩倬俾俯們倆偃假會偕偐偈做偖偬偸傀傚傅傴傲"],
+["d1a1","僉僊傳僂僖僞僥僭僣僮價僵儉儁儂儖儕儔儚儡儺儷儼儻儿兀兒兌兔兢竸兩兪兮冀冂囘册冉冏冑冓冕冖冤冦冢冩冪冫决冱冲冰况冽凅凉凛几處凩凭凰凵凾刄刋刔刎刧刪刮刳刹剏剄剋剌剞剔剪剴剩剳剿剽劍劔劒剱劈劑辨"],
+["d2a1","辧劬劭劼劵勁勍勗勞勣勦飭勠勳勵勸勹匆匈甸匍匐匏匕匚匣匯匱匳匸區卆卅丗卉卍凖卞卩卮夘卻卷厂厖厠厦厥厮厰厶參簒雙叟曼燮叮叨叭叺吁吽呀听吭吼吮吶吩吝呎咏呵咎呟呱呷呰咒呻咀呶咄咐咆哇咢咸咥咬哄哈咨"],
+["d3a1","咫哂咤咾咼哘哥哦唏唔哽哮哭哺哢唹啀啣啌售啜啅啖啗唸唳啝喙喀咯喊喟啻啾喘喞單啼喃喩喇喨嗚嗅嗟嗄嗜嗤嗔嘔嗷嘖嗾嗽嘛嗹噎噐營嘴嘶嘲嘸噫噤嘯噬噪嚆嚀嚊嚠嚔嚏嚥嚮嚶嚴囂嚼囁囃囀囈囎囑囓囗囮囹圀囿圄圉"],
+["d4a1","圈國圍圓團圖嗇圜圦圷圸坎圻址坏坩埀垈坡坿垉垓垠垳垤垪垰埃埆埔埒埓堊埖埣堋堙堝塲堡塢塋塰毀塒堽塹墅墹墟墫墺壞墻墸墮壅壓壑壗壙壘壥壜壤壟壯壺壹壻壼壽夂夊夐夛梦夥夬夭夲夸夾竒奕奐奎奚奘奢奠奧奬奩"],
+["d5a1","奸妁妝佞侫妣妲姆姨姜妍姙姚娥娟娑娜娉娚婀婬婉娵娶婢婪媚媼媾嫋嫂媽嫣嫗嫦嫩嫖嫺嫻嬌嬋嬖嬲嫐嬪嬶嬾孃孅孀孑孕孚孛孥孩孰孳孵學斈孺宀它宦宸寃寇寉寔寐寤實寢寞寥寫寰寶寳尅將專對尓尠尢尨尸尹屁屆屎屓"],
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+["f4a1","堯槇遙瑤凜熙"],
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+["8fcfa1","睤睧睪睬睰睲睳睴睺睽瞀瞄瞌瞍瞔瞕瞖瞚瞟瞢瞧瞪瞮瞯瞱瞵瞾矃矉矑矒矕矙矞矟矠矤矦矪矬矰矱矴矸矻砅砆砉砍砎砑砝砡砢砣砭砮砰砵砷硃硄硇硈硌硎硒硜硞硠硡硣硤硨硪确硺硾碊碏碔碘碡碝碞碟碤碨碬碭碰碱碲碳"],
+["8fd0a1","碻碽碿磇磈磉磌磎磒磓磕磖磤磛磟磠磡磦磪磲磳礀磶磷磺磻磿礆礌礐礚礜礞礟礠礥礧礩礭礱礴礵礻礽礿祄祅祆祊祋祏祑祔祘祛祜祧祩祫祲祹祻祼祾禋禌禑禓禔禕禖禘禛禜禡禨禩禫禯禱禴禸离秂秄秇秈秊秏秔秖秚秝秞"],
+["8fd1a1","秠秢秥秪秫秭秱秸秼稂稃稇稉稊稌稑稕稛稞稡稧稫稭稯稰稴稵稸稹稺穄穅穇穈穌穕穖穙穜穝穟穠穥穧穪穭穵穸穾窀窂窅窆窊窋窐窑窔窞窠窣窬窳窵窹窻窼竆竉竌竎竑竛竨竩竫竬竱竴竻竽竾笇笔笟笣笧笩笪笫笭笮笯笰"],
+["8fd2a1","笱笴笽笿筀筁筇筎筕筠筤筦筩筪筭筯筲筳筷箄箉箎箐箑箖箛箞箠箥箬箯箰箲箵箶箺箻箼箽篂篅篈篊篔篖篗篙篚篛篨篪篲篴篵篸篹篺篼篾簁簂簃簄簆簉簋簌簎簏簙簛簠簥簦簨簬簱簳簴簶簹簺籆籊籕籑籒籓籙",5],
+["8fd3a1","籡籣籧籩籭籮籰籲籹籼籽粆粇粏粔粞粠粦粰粶粷粺粻粼粿糄糇糈糉糍糏糓糔糕糗糙糚糝糦糩糫糵紃紇紈紉紏紑紒紓紖紝紞紣紦紪紭紱紼紽紾絀絁絇絈絍絑絓絗絙絚絜絝絥絧絪絰絸絺絻絿綁綂綃綅綆綈綋綌綍綑綖綗綝"],
+["8fd4a1","綞綦綧綪綳綶綷綹緂",4,"緌緍緎緗緙縀緢緥緦緪緫緭緱緵緶緹緺縈縐縑縕縗縜縝縠縧縨縬縭縯縳縶縿繄繅繇繎繐繒繘繟繡繢繥繫繮繯繳繸繾纁纆纇纊纍纑纕纘纚纝纞缼缻缽缾缿罃罄罇罏罒罓罛罜罝罡罣罤罥罦罭"],
+["8fd5a1","罱罽罾罿羀羋羍羏羐羑羖羗羜羡羢羦羪羭羴羼羿翀翃翈翎翏翛翟翣翥翨翬翮翯翲翺翽翾翿耇耈耊耍耎耏耑耓耔耖耝耞耟耠耤耦耬耮耰耴耵耷耹耺耼耾聀聄聠聤聦聭聱聵肁肈肎肜肞肦肧肫肸肹胈胍胏胒胔胕胗胘胠胭胮"],
+["8fd6a1","胰胲胳胶胹胺胾脃脋脖脗脘脜脞脠脤脧脬脰脵脺脼腅腇腊腌腒腗腠腡腧腨腩腭腯腷膁膐膄膅膆膋膎膖膘膛膞膢膮膲膴膻臋臃臅臊臎臏臕臗臛臝臞臡臤臫臬臰臱臲臵臶臸臹臽臿舀舃舏舓舔舙舚舝舡舢舨舲舴舺艃艄艅艆"],
+["8fd7a1","艋艎艏艑艖艜艠艣艧艭艴艻艽艿芀芁芃芄芇芉芊芎芑芔芖芘芚芛芠芡芣芤芧芨芩芪芮芰芲芴芷芺芼芾芿苆苐苕苚苠苢苤苨苪苭苯苶苷苽苾茀茁茇茈茊茋荔茛茝茞茟茡茢茬茭茮茰茳茷茺茼茽荂荃荄荇荍荎荑荕荖荗荰荸"],
+["8fd8a1","荽荿莀莂莄莆莍莒莔莕莘莙莛莜莝莦莧莩莬莾莿菀菇菉菏菐菑菔菝荓菨菪菶菸菹菼萁萆萊萏萑萕萙莭萯萹葅葇葈葊葍葏葑葒葖葘葙葚葜葠葤葥葧葪葰葳葴葶葸葼葽蒁蒅蒒蒓蒕蒞蒦蒨蒩蒪蒯蒱蒴蒺蒽蒾蓀蓂蓇蓈蓌蓏蓓"],
+["8fd9a1","蓜蓧蓪蓯蓰蓱蓲蓷蔲蓺蓻蓽蔂蔃蔇蔌蔎蔐蔜蔞蔢蔣蔤蔥蔧蔪蔫蔯蔳蔴蔶蔿蕆蕏",4,"蕖蕙蕜",6,"蕤蕫蕯蕹蕺蕻蕽蕿薁薅薆薉薋薌薏薓薘薝薟薠薢薥薧薴薶薷薸薼薽薾薿藂藇藊藋藎薭藘藚藟藠藦藨藭藳藶藼"],
+["8fdaa1","藿蘀蘄蘅蘍蘎蘐蘑蘒蘘蘙蘛蘞蘡蘧蘩蘶蘸蘺蘼蘽虀虂虆虒虓虖虗虘虙虝虠",4,"虩虬虯虵虶虷虺蚍蚑蚖蚘蚚蚜蚡蚦蚧蚨蚭蚱蚳蚴蚵蚷蚸蚹蚿蛀蛁蛃蛅蛑蛒蛕蛗蛚蛜蛠蛣蛥蛧蚈蛺蛼蛽蜄蜅蜇蜋蜎蜏蜐蜓蜔蜙蜞蜟蜡蜣"],
+["8fdba1","蜨蜮蜯蜱蜲蜹蜺蜼蜽蜾蝀蝃蝅蝍蝘蝝蝡蝤蝥蝯蝱蝲蝻螃",6,"螋螌螐螓螕螗螘螙螞螠螣螧螬螭螮螱螵螾螿蟁蟈蟉蟊蟎蟕蟖蟙蟚蟜蟟蟢蟣蟤蟪蟫蟭蟱蟳蟸蟺蟿蠁蠃蠆蠉蠊蠋蠐蠙蠒蠓蠔蠘蠚蠛蠜蠞蠟蠨蠭蠮蠰蠲蠵"],
+["8fdca1","蠺蠼衁衃衅衈衉衊衋衎衑衕衖衘衚衜衟衠衤衩衱衹衻袀袘袚袛袜袟袠袨袪袺袽袾裀裊",4,"裑裒裓裛裞裧裯裰裱裵裷褁褆褍褎褏褕褖褘褙褚褜褠褦褧褨褰褱褲褵褹褺褾襀襂襅襆襉襏襒襗襚襛襜襡襢襣襫襮襰襳襵襺"],
+["8fdda1","襻襼襽覉覍覐覔覕覛覜覟覠覥覰覴覵覶覷覼觔",4,"觥觩觫觭觱觳觶觹觽觿訄訅訇訏訑訒訔訕訞訠訢訤訦訫訬訯訵訷訽訾詀詃詅詇詉詍詎詓詖詗詘詜詝詡詥詧詵詶詷詹詺詻詾詿誀誃誆誋誏誐誒誖誗誙誟誧誩誮誯誳"],
+["8fdea1","誶誷誻誾諃諆諈諉諊諑諓諔諕諗諝諟諬諰諴諵諶諼諿謅謆謋謑謜謞謟謊謭謰謷謼譂",4,"譈譒譓譔譙譍譞譣譭譶譸譹譼譾讁讄讅讋讍讏讔讕讜讞讟谸谹谽谾豅豇豉豋豏豑豓豔豗豘豛豝豙豣豤豦豨豩豭豳豵豶豻豾貆"],
+["8fdfa1","貇貋貐貒貓貙貛貜貤貹貺賅賆賉賋賏賖賕賙賝賡賨賬賯賰賲賵賷賸賾賿贁贃贉贒贗贛赥赩赬赮赿趂趄趈趍趐趑趕趞趟趠趦趫趬趯趲趵趷趹趻跀跅跆跇跈跊跎跑跔跕跗跙跤跥跧跬跰趼跱跲跴跽踁踄踅踆踋踑踔踖踠踡踢"],
+["8fe0a1","踣踦踧踱踳踶踷踸踹踽蹀蹁蹋蹍蹎蹏蹔蹛蹜蹝蹞蹡蹢蹩蹬蹭蹯蹰蹱蹹蹺蹻躂躃躉躐躒躕躚躛躝躞躢躧躩躭躮躳躵躺躻軀軁軃軄軇軏軑軔軜軨軮軰軱軷軹軺軭輀輂輇輈輏輐輖輗輘輞輠輡輣輥輧輨輬輭輮輴輵輶輷輺轀轁"],
+["8fe1a1","轃轇轏轑",4,"轘轝轞轥辝辠辡辤辥辦辵辶辸达迀迁迆迊迋迍运迒迓迕迠迣迤迨迮迱迵迶迻迾适逄逈逌逘逛逨逩逯逪逬逭逳逴逷逿遃遄遌遛遝遢遦遧遬遰遴遹邅邈邋邌邎邐邕邗邘邙邛邠邡邢邥邰邲邳邴邶邽郌邾郃"],
+["8fe2a1","郄郅郇郈郕郗郘郙郜郝郟郥郒郶郫郯郰郴郾郿鄀鄄鄅鄆鄈鄍鄐鄔鄖鄗鄘鄚鄜鄞鄠鄥鄢鄣鄧鄩鄮鄯鄱鄴鄶鄷鄹鄺鄼鄽酃酇酈酏酓酗酙酚酛酡酤酧酭酴酹酺酻醁醃醅醆醊醎醑醓醔醕醘醞醡醦醨醬醭醮醰醱醲醳醶醻醼醽醿"],
+["8fe3a1","釂釃釅釓釔釗釙釚釞釤釥釩釪釬",5,"釷釹釻釽鈀鈁鈄鈅鈆鈇鈉鈊鈌鈐鈒鈓鈖鈘鈜鈝鈣鈤鈥鈦鈨鈮鈯鈰鈳鈵鈶鈸鈹鈺鈼鈾鉀鉂鉃鉆鉇鉊鉍鉎鉏鉑鉘鉙鉜鉝鉠鉡鉥鉧鉨鉩鉮鉯鉰鉵",4,"鉻鉼鉽鉿銈銉銊銍銎銒銗"],
+["8fe4a1","銙銟銠銤銥銧銨銫銯銲銶銸銺銻銼銽銿",4,"鋅鋆鋇鋈鋋鋌鋍鋎鋐鋓鋕鋗鋘鋙鋜鋝鋟鋠鋡鋣鋥鋧鋨鋬鋮鋰鋹鋻鋿錀錂錈錍錑錔錕錜錝錞錟錡錤錥錧錩錪錳錴錶錷鍇鍈鍉鍐鍑鍒鍕鍗鍘鍚鍞鍤鍥鍧鍩鍪鍭鍯鍰鍱鍳鍴鍶"],
+["8fe5a1","鍺鍽鍿鎀鎁鎂鎈鎊鎋鎍鎏鎒鎕鎘鎛鎞鎡鎣鎤鎦鎨鎫鎴鎵鎶鎺鎩鏁鏄鏅鏆鏇鏉",4,"鏓鏙鏜鏞鏟鏢鏦鏧鏹鏷鏸鏺鏻鏽鐁鐂鐄鐈鐉鐍鐎鐏鐕鐖鐗鐟鐮鐯鐱鐲鐳鐴鐻鐿鐽鑃鑅鑈鑊鑌鑕鑙鑜鑟鑡鑣鑨鑫鑭鑮鑯鑱鑲钄钃镸镹"],
+["8fe6a1","镾閄閈閌閍閎閝閞閟閡閦閩閫閬閴閶閺閽閿闆闈闉闋闐闑闒闓闙闚闝闞闟闠闤闦阝阞阢阤阥阦阬阱阳阷阸阹阺阼阽陁陒陔陖陗陘陡陮陴陻陼陾陿隁隂隃隄隉隑隖隚隝隟隤隥隦隩隮隯隳隺雊雒嶲雘雚雝雞雟雩雯雱雺霂"],
+["8fe7a1","霃霅霉霚霛霝霡霢霣霨霱霳靁靃靊靎靏靕靗靘靚靛靣靧靪靮靳靶靷靸靻靽靿鞀鞉鞕鞖鞗鞙鞚鞞鞟鞢鞬鞮鞱鞲鞵鞶鞸鞹鞺鞼鞾鞿韁韄韅韇韉韊韌韍韎韐韑韔韗韘韙韝韞韠韛韡韤韯韱韴韷韸韺頇頊頙頍頎頔頖頜頞頠頣頦"],
+["8fe8a1","頫頮頯頰頲頳頵頥頾顄顇顊顑顒顓顖顗顙顚顢顣顥顦顪顬颫颭颮颰颴颷颸颺颻颿飂飅飈飌飡飣飥飦飧飪飳飶餂餇餈餑餕餖餗餚餛餜餟餢餦餧餫餱",4,"餹餺餻餼饀饁饆饇饈饍饎饔饘饙饛饜饞饟饠馛馝馟馦馰馱馲馵"],
+["8fe9a1","馹馺馽馿駃駉駓駔駙駚駜駞駧駪駫駬駰駴駵駹駽駾騂騃騄騋騌騐騑騖騞騠騢騣騤騧騭騮騳騵騶騸驇驁驄驊驋驌驎驑驔驖驝骪骬骮骯骲骴骵骶骹骻骾骿髁髃髆髈髎髐髒髕髖髗髛髜髠髤髥髧髩髬髲髳髵髹髺髽髿",4],
+["8feaa1","鬄鬅鬈鬉鬋鬌鬍鬎鬐鬒鬖鬙鬛鬜鬠鬦鬫鬭鬳鬴鬵鬷鬹鬺鬽魈魋魌魕魖魗魛魞魡魣魥魦魨魪",4,"魳魵魷魸魹魿鮀鮄鮅鮆鮇鮉鮊鮋鮍鮏鮐鮔鮚鮝鮞鮦鮧鮩鮬鮰鮱鮲鮷鮸鮻鮼鮾鮿鯁鯇鯈鯎鯐鯗鯘鯝鯟鯥鯧鯪鯫鯯鯳鯷鯸"],
+["8feba1","鯹鯺鯽鯿鰀鰂鰋鰏鰑鰖鰘鰙鰚鰜鰞鰢鰣鰦",4,"鰱鰵鰶鰷鰽鱁鱃鱄鱅鱉鱊鱎鱏鱐鱓鱔鱖鱘鱛鱝鱞鱟鱣鱩鱪鱜鱫鱨鱮鱰鱲鱵鱷鱻鳦鳲鳷鳹鴋鴂鴑鴗鴘鴜鴝鴞鴯鴰鴲鴳鴴鴺鴼鵅鴽鵂鵃鵇鵊鵓鵔鵟鵣鵢鵥鵩鵪鵫鵰鵶鵷鵻"],
+["8feca1","鵼鵾鶃鶄鶆鶊鶍鶎鶒鶓鶕鶖鶗鶘鶡鶪鶬鶮鶱鶵鶹鶼鶿鷃鷇鷉鷊鷔鷕鷖鷗鷚鷞鷟鷠鷥鷧鷩鷫鷮鷰鷳鷴鷾鸊鸂鸇鸎鸐鸑鸒鸕鸖鸙鸜鸝鹺鹻鹼麀麂麃麄麅麇麎麏麖麘麛麞麤麨麬麮麯麰麳麴麵黆黈黋黕黟黤黧黬黭黮黰黱黲黵"],
+["8feda1","黸黿鼂鼃鼉鼏鼐鼑鼒鼔鼖鼗鼙鼚鼛鼟鼢鼦鼪鼫鼯鼱鼲鼴鼷鼹鼺鼼鼽鼿齁齃",4,"齓齕齖齗齘齚齝齞齨齩齭",4,"齳齵齺齽龏龐龑龒龔龖龗龞龡龢龣龥"]
+]
diff --git a/backend/node_modules/iconv-lite/encodings/tables/gb18030-ranges.json b/backend/node_modules/iconv-lite/encodings/tables/gb18030-ranges.json
new file mode 100644
index 0000000..85c6934
--- /dev/null
+++ b/backend/node_modules/iconv-lite/encodings/tables/gb18030-ranges.json
@@ -0,0 +1 @@
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\ No newline at end of file
diff --git a/backend/node_modules/iconv-lite/encodings/tables/gbk-added.json b/backend/node_modules/iconv-lite/encodings/tables/gbk-added.json
new file mode 100644
index 0000000..b742e36
--- /dev/null
+++ b/backend/node_modules/iconv-lite/encodings/tables/gbk-added.json
@@ -0,0 +1,56 @@
+[
+["a140","",62],
+["a180","",32],
+["a240","",62],
+["a280","",32],
+["a2ab","",5],
+["a2e3","€"],
+["a2ef",""],
+["a2fd",""],
+["a340","",62],
+["a380","",31,"　"],
+["a440","",62],
+["a480","",32],
+["a4f4","",10],
+["a540","",62],
+["a580","",32],
+["a5f7","",7],
+["a640","",62],
+["a680","",32],
+["a6b9","",7],
+["a6d9","",6],
+["a6ec",""],
+["a6f3",""],
+["a6f6","",8],
+["a740","",62],
+["a780","",32],
+["a7c2","",14],
+["a7f2","",12],
+["a896","",10],
+["a8bc","ḿ"],
+["a8bf","ǹ"],
+["a8c1",""],
+["a8ea","",20],
+["a958",""],
+["a95b",""],
+["a95d",""],
+["a989","〾⿰",11],
+["a997","",12],
+["a9f0","",14],
+["aaa1","",93],
+["aba1","",93],
+["aca1","",93],
+["ada1","",93],
+["aea1","",93],
+["afa1","",93],
+["d7fa","",4],
+["f8a1","",93],
+["f9a1","",93],
+["faa1","",93],
+["fba1","",93],
+["fca1","",93],
+["fda1","",93],
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+["fe80","䜣䜩䝼䞍⻊䥇䥺䥽䦂䦃䦅䦆䦟䦛䦷䦶䲣䲟䲠䲡䱷䲢䴓",6,"䶮",93],
+["8135f437",""]
+]
diff --git a/backend/node_modules/iconv-lite/encodings/tables/shiftjis.json b/backend/node_modules/iconv-lite/encodings/tables/shiftjis.json
new file mode 100644
index 0000000..5a3a43c
--- /dev/null
+++ b/backend/node_modules/iconv-lite/encodings/tables/shiftjis.json
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+[
+["0","\u0000",128],
+["a1","｡",62],
+["8140","　、。，．・：；？！゛゜´｀¨＾￣＿ヽヾゝゞ〃仝々〆〇ー―‐／＼～∥｜…‥‘’“”（）〔〕［］｛｝〈",9,"＋－±×"],
+["8180","÷＝≠＜＞≦≧∞∴♂♀°′″℃￥＄￠￡％＃＆＊＠§☆★○●◎◇◆□■△▲▽▼※〒→←↑↓〓"],
+["81b8","∈∋⊆⊇⊂⊃∪∩"],
+["81c8","∧∨￢⇒⇔∀∃"],
+["81da","∠⊥⌒∂∇≡≒≪≫√∽∝∵∫∬"],
+["81f0","ʼn♯♭♪†‡¶"],
+["81fc","◯"],
+["824f","０",9],
+["8260","Ａ",25],
+["8281","ａ",25],
+["829f","ぁ",82],
+["8340","ァ",62],
+["8380","ム",22],
+["839f","Α",16,"Σ",6],
+["83bf","α",16,"σ",6],
+["8440","А",5,"ЁЖ",25],
+["8470","а",5,"ёж",7],
+["8480","о",17],
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+["e540","蕁蘂蕋蕕薀薤薈薑薊薨蕭薔薛藪薇薜蕷蕾薐藉薺藏薹藐藕藝藥藜藹蘊蘓蘋藾藺蘆蘢蘚蘰蘿虍乕虔號虧虱蚓蚣蚩蚪蚋蚌蚶蚯蛄蛆蚰蛉蠣蚫蛔蛞蛩蛬"],
+["e580","蛟蛛蛯蜒蜆蜈蜀蜃蛻蜑蜉蜍蛹蜊蜴蜿蜷蜻蜥蜩蜚蝠蝟蝸蝌蝎蝴蝗蝨蝮蝙蝓蝣蝪蠅螢螟螂螯蟋螽蟀蟐雖螫蟄螳蟇蟆螻蟯蟲蟠蠏蠍蟾蟶蟷蠎蟒蠑蠖蠕蠢蠡蠱蠶蠹蠧蠻衄衂衒衙衞衢衫袁衾袞衵衽袵衲袂袗袒袮袙袢袍袤袰袿袱裃裄裔裘裙裝裹褂裼裴裨裲褄褌褊褓襃褞褥褪褫襁襄褻褶褸襌褝襠襞"],
+["e640","襦襤襭襪襯襴襷襾覃覈覊覓覘覡覩覦覬覯覲覺覽覿觀觚觜觝觧觴觸訃訖訐訌訛訝訥訶詁詛詒詆詈詼詭詬詢誅誂誄誨誡誑誥誦誚誣諄諍諂諚諫諳諧"],
+["e680","諤諱謔諠諢諷諞諛謌謇謚諡謖謐謗謠謳鞫謦謫謾謨譁譌譏譎證譖譛譚譫譟譬譯譴譽讀讌讎讒讓讖讙讚谺豁谿豈豌豎豐豕豢豬豸豺貂貉貅貊貍貎貔豼貘戝貭貪貽貲貳貮貶賈賁賤賣賚賽賺賻贄贅贊贇贏贍贐齎贓賍贔贖赧赭赱赳趁趙跂趾趺跏跚跖跌跛跋跪跫跟跣跼踈踉跿踝踞踐踟蹂踵踰踴蹊"],
+["e740","蹇蹉蹌蹐蹈蹙蹤蹠踪蹣蹕蹶蹲蹼躁躇躅躄躋躊躓躑躔躙躪躡躬躰軆躱躾軅軈軋軛軣軼軻軫軾輊輅輕輒輙輓輜輟輛輌輦輳輻輹轅轂輾轌轉轆轎轗轜"],
+["e780","轢轣轤辜辟辣辭辯辷迚迥迢迪迯邇迴逅迹迺逑逕逡逍逞逖逋逧逶逵逹迸遏遐遑遒逎遉逾遖遘遞遨遯遶隨遲邂遽邁邀邊邉邏邨邯邱邵郢郤扈郛鄂鄒鄙鄲鄰酊酖酘酣酥酩酳酲醋醉醂醢醫醯醪醵醴醺釀釁釉釋釐釖釟釡釛釼釵釶鈞釿鈔鈬鈕鈑鉞鉗鉅鉉鉤鉈銕鈿鉋鉐銜銖銓銛鉚鋏銹銷鋩錏鋺鍄錮"],
+["e840","錙錢錚錣錺錵錻鍜鍠鍼鍮鍖鎰鎬鎭鎔鎹鏖鏗鏨鏥鏘鏃鏝鏐鏈鏤鐚鐔鐓鐃鐇鐐鐶鐫鐵鐡鐺鑁鑒鑄鑛鑠鑢鑞鑪鈩鑰鑵鑷鑽鑚鑼鑾钁鑿閂閇閊閔閖閘閙"],
+["e880","閠閨閧閭閼閻閹閾闊濶闃闍闌闕闔闖關闡闥闢阡阨阮阯陂陌陏陋陷陜陞陝陟陦陲陬隍隘隕隗險隧隱隲隰隴隶隸隹雎雋雉雍襍雜霍雕雹霄霆霈霓霎霑霏霖霙霤霪霰霹霽霾靄靆靈靂靉靜靠靤靦靨勒靫靱靹鞅靼鞁靺鞆鞋鞏鞐鞜鞨鞦鞣鞳鞴韃韆韈韋韜韭齏韲竟韶韵頏頌頸頤頡頷頽顆顏顋顫顯顰"],
+["e940","顱顴顳颪颯颱颶飄飃飆飩飫餃餉餒餔餘餡餝餞餤餠餬餮餽餾饂饉饅饐饋饑饒饌饕馗馘馥馭馮馼駟駛駝駘駑駭駮駱駲駻駸騁騏騅駢騙騫騷驅驂驀驃"],
+["e980","騾驕驍驛驗驟驢驥驤驩驫驪骭骰骼髀髏髑髓體髞髟髢髣髦髯髫髮髴髱髷髻鬆鬘鬚鬟鬢鬣鬥鬧鬨鬩鬪鬮鬯鬲魄魃魏魍魎魑魘魴鮓鮃鮑鮖鮗鮟鮠鮨鮴鯀鯊鮹鯆鯏鯑鯒鯣鯢鯤鯔鯡鰺鯲鯱鯰鰕鰔鰉鰓鰌鰆鰈鰒鰊鰄鰮鰛鰥鰤鰡鰰鱇鰲鱆鰾鱚鱠鱧鱶鱸鳧鳬鳰鴉鴈鳫鴃鴆鴪鴦鶯鴣鴟鵄鴕鴒鵁鴿鴾鵆鵈"],
+["ea40","鵝鵞鵤鵑鵐鵙鵲鶉鶇鶫鵯鵺鶚鶤鶩鶲鷄鷁鶻鶸鶺鷆鷏鷂鷙鷓鷸鷦鷭鷯鷽鸚鸛鸞鹵鹹鹽麁麈麋麌麒麕麑麝麥麩麸麪麭靡黌黎黏黐黔黜點黝黠黥黨黯"],
+["ea80","黴黶黷黹黻黼黽鼇鼈皷鼕鼡鼬鼾齊齒齔齣齟齠齡齦齧齬齪齷齲齶龕龜龠堯槇遙瑤凜熙"],
+["ed40","纊褜鍈銈蓜俉炻昱棈鋹曻彅丨仡仼伀伃伹佖侒侊侚侔俍偀倢俿倞偆偰偂傔僴僘兊兤冝冾凬刕劜劦勀勛匀匇匤卲厓厲叝﨎咜咊咩哿喆坙坥垬埈埇﨏"],
+["ed80","塚增墲夋奓奛奝奣妤妺孖寀甯寘寬尞岦岺峵崧嵓﨑嵂嵭嶸嶹巐弡弴彧德忞恝悅悊惞惕愠惲愑愷愰憘戓抦揵摠撝擎敎昀昕昻昉昮昞昤晥晗晙晴晳暙暠暲暿曺朎朗杦枻桒柀栁桄棏﨓楨﨔榘槢樰橫橆橳橾櫢櫤毖氿汜沆汯泚洄涇浯涖涬淏淸淲淼渹湜渧渼溿澈澵濵瀅瀇瀨炅炫焏焄煜煆煇凞燁燾犱"],
+["ee40","犾猤猪獷玽珉珖珣珒琇珵琦琪琩琮瑢璉璟甁畯皂皜皞皛皦益睆劯砡硎硤硺礰礼神祥禔福禛竑竧靖竫箞精絈絜綷綠緖繒罇羡羽茁荢荿菇菶葈蒴蕓蕙"],
+["ee80","蕫﨟薰蘒﨡蠇裵訒訷詹誧誾諟諸諶譓譿賰賴贒赶﨣軏﨤逸遧郞都鄕鄧釚釗釞釭釮釤釥鈆鈐鈊鈺鉀鈼鉎鉙鉑鈹鉧銧鉷鉸鋧鋗鋙鋐﨧鋕鋠鋓錥錡鋻﨨錞鋿錝錂鍰鍗鎤鏆鏞鏸鐱鑅鑈閒隆﨩隝隯霳霻靃靍靏靑靕顗顥飯飼餧館馞驎髙髜魵魲鮏鮱鮻鰀鵰鵫鶴鸙黑"],
+["eeef","ⅰ",9,"￢￤＇＂"],
+["f040","",62],
+["f080","",124],
+["f140","",62],
+["f180","",124],
+["f240","",62],
+["f280","",124],
+["f340","",62],
+["f380","",124],
+["f440","",62],
+["f480","",124],
+["f540","",62],
+["f580","",124],
+["f640","",62],
+["f680","",124],
+["f740","",62],
+["f780","",124],
+["f840","",62],
+["f880","",124],
+["f940",""],
+["fa40","ⅰ",9,"Ⅰ",9,"￢￤＇＂㈱№℡∵纊褜鍈銈蓜俉炻昱棈鋹曻彅丨仡仼伀伃伹佖侒侊侚侔俍偀倢俿倞偆偰偂傔僴僘兊"],
+["fa80","兤冝冾凬刕劜劦勀勛匀匇匤卲厓厲叝﨎咜咊咩哿喆坙坥垬埈埇﨏塚增墲夋奓奛奝奣妤妺孖寀甯寘寬尞岦岺峵崧嵓﨑嵂嵭嶸嶹巐弡弴彧德忞恝悅悊惞惕愠惲愑愷愰憘戓抦揵摠撝擎敎昀昕昻昉昮昞昤晥晗晙晴晳暙暠暲暿曺朎朗杦枻桒柀栁桄棏﨓楨﨔榘槢樰橫橆橳橾櫢櫤毖氿汜沆汯泚洄涇浯"],
+["fb40","涖涬淏淸淲淼渹湜渧渼溿澈澵濵瀅瀇瀨炅炫焏焄煜煆煇凞燁燾犱犾猤猪獷玽珉珖珣珒琇珵琦琪琩琮瑢璉璟甁畯皂皜皞皛皦益睆劯砡硎硤硺礰礼神"],
+["fb80","祥禔福禛竑竧靖竫箞精絈絜綷綠緖繒罇羡羽茁荢荿菇菶葈蒴蕓蕙蕫﨟薰蘒﨡蠇裵訒訷詹誧誾諟諸諶譓譿賰賴贒赶﨣軏﨤逸遧郞都鄕鄧釚釗釞釭釮釤釥鈆鈐鈊鈺鉀鈼鉎鉙鉑鈹鉧銧鉷鉸鋧鋗鋙鋐﨧鋕鋠鋓錥錡鋻﨨錞鋿錝錂鍰鍗鎤鏆鏞鏸鐱鑅鑈閒隆﨩隝隯霳霻靃靍靏靑靕顗顥飯飼餧館馞驎髙"],
+["fc40","髜魵魲鮏鮱鮻鰀鵰鵫鶴鸙黑"]
+]
diff --git a/backend/node_modules/iconv-lite/encodings/utf16.js b/backend/node_modules/iconv-lite/encodings/utf16.js
new file mode 100644
index 0000000..97d0669
--- /dev/null
+++ b/backend/node_modules/iconv-lite/encodings/utf16.js
@@ -0,0 +1,197 @@
+"use strict";
+var Buffer = require("safer-buffer").Buffer;
+
+// Note: UTF16-LE (or UCS2) codec is Node.js native. See encodings/internal.js
+
+// == UTF16-BE codec. ==========================================================
+
+exports.utf16be = Utf16BECodec;
+function Utf16BECodec() {
+}
+
+Utf16BECodec.prototype.encoder = Utf16BEEncoder;
+Utf16BECodec.prototype.decoder = Utf16BEDecoder;
+Utf16BECodec.prototype.bomAware = true;
+
+
+// -- Encoding
+
+function Utf16BEEncoder() {
+}
+
+Utf16BEEncoder.prototype.write = function(str) {
+    var buf = Buffer.from(str, 'ucs2');
+    for (var i = 0; i < buf.length; i += 2) {
+        var tmp = buf[i]; buf[i] = buf[i+1]; buf[i+1] = tmp;
+    }
+    return buf;
+}
+
+Utf16BEEncoder.prototype.end = function() {
+}
+
+
+// -- Decoding
+
+function Utf16BEDecoder() {
+    this.overflowByte = -1;
+}
+
+Utf16BEDecoder.prototype.write = function(buf) {
+    if (buf.length == 0)
+        return '';
+
+    var buf2 = Buffer.alloc(buf.length + 1),
+        i = 0, j = 0;
+
+    if (this.overflowByte !== -1) {
+        buf2[0] = buf[0];
+        buf2[1] = this.overflowByte;
+        i = 1; j = 2;
+    }
+
+    for (; i < buf.length-1; i += 2, j+= 2) {
+        buf2[j] = buf[i+1];
+        buf2[j+1] = buf[i];
+    }
+
+    this.overflowByte = (i == buf.length-1) ? buf[buf.length-1] : -1;
+
+    return buf2.slice(0, j).toString('ucs2');
+}
+
+Utf16BEDecoder.prototype.end = function() {
+    this.overflowByte = -1;
+}
+
+
+// == UTF-16 codec =============================================================
+// Decoder chooses automatically from UTF-16LE and UTF-16BE using BOM and space-based heuristic.
+// Defaults to UTF-16LE, as it's prevalent and default in Node.
+// http://en.wikipedia.org/wiki/UTF-16 and http://encoding.spec.whatwg.org/#utf-16le
+// Decoder default can be changed: iconv.decode(buf, 'utf16', {defaultEncoding: 'utf-16be'});
+
+// Encoder uses UTF-16LE and prepends BOM (which can be overridden with addBOM: false).
+
+exports.utf16 = Utf16Codec;
+function Utf16Codec(codecOptions, iconv) {
+    this.iconv = iconv;
+}
+
+Utf16Codec.prototype.encoder = Utf16Encoder;
+Utf16Codec.prototype.decoder = Utf16Decoder;
+
+
+// -- Encoding (pass-through)
+
+function Utf16Encoder(options, codec) {
+    options = options || {};
+    if (options.addBOM === undefined)
+        options.addBOM = true;
+    this.encoder = codec.iconv.getEncoder('utf-16le', options);
+}
+
+Utf16Encoder.prototype.write = function(str) {
+    return this.encoder.write(str);
+}
+
+Utf16Encoder.prototype.end = function() {
+    return this.encoder.end();
+}
+
+
+// -- Decoding
+
+function Utf16Decoder(options, codec) {
+    this.decoder = null;
+    this.initialBufs = [];
+    this.initialBufsLen = 0;
+
+    this.options = options || {};
+    this.iconv = codec.iconv;
+}
+
+Utf16Decoder.prototype.write = function(buf) {
+    if (!this.decoder) {
+        // Codec is not chosen yet. Accumulate initial bytes.
+        this.initialBufs.push(buf);
+        this.initialBufsLen += buf.length;
+        
+        if (this.initialBufsLen < 16) // We need more bytes to use space heuristic (see below)
+            return '';
+
+        // We have enough bytes -> detect endianness.
+        var encoding = detectEncoding(this.initialBufs, this.options.defaultEncoding);
+        this.decoder = this.iconv.getDecoder(encoding, this.options);
+
+        var resStr = '';
+        for (var i = 0; i < this.initialBufs.length; i++)
+            resStr += this.decoder.write(this.initialBufs[i]);
+
+        this.initialBufs.length = this.initialBufsLen = 0;
+        return resStr;
+    }
+
+    return this.decoder.write(buf);
+}
+
+Utf16Decoder.prototype.end = function() {
+    if (!this.decoder) {
+        var encoding = detectEncoding(this.initialBufs, this.options.defaultEncoding);
+        this.decoder = this.iconv.getDecoder(encoding, this.options);
+
+        var resStr = '';
+        for (var i = 0; i < this.initialBufs.length; i++)
+            resStr += this.decoder.write(this.initialBufs[i]);
+
+        var trail = this.decoder.end();
+        if (trail)
+            resStr += trail;
+
+        this.initialBufs.length = this.initialBufsLen = 0;
+        return resStr;
+    }
+    return this.decoder.end();
+}
+
+function detectEncoding(bufs, defaultEncoding) {
+    var b = [];
+    var charsProcessed = 0;
+    var asciiCharsLE = 0, asciiCharsBE = 0; // Number of ASCII chars when decoded as LE or BE.
+
+    outer_loop:
+    for (var i = 0; i < bufs.length; i++) {
+        var buf = bufs[i];
+        for (var j = 0; j < buf.length; j++) {
+            b.push(buf[j]);
+            if (b.length === 2) {
+                if (charsProcessed === 0) {
+                    // Check BOM first.
+                    if (b[0] === 0xFF && b[1] === 0xFE) return 'utf-16le';
+                    if (b[0] === 0xFE && b[1] === 0xFF) return 'utf-16be';
+                }
+
+                if (b[0] === 0 && b[1] !== 0) asciiCharsBE++;
+                if (b[0] !== 0 && b[1] === 0) asciiCharsLE++;
+
+                b.length = 0;
+                charsProcessed++;
+
+                if (charsProcessed >= 100) {
+                    break outer_loop;
+                }
+            }
+        }
+    }
+
+    // Make decisions.
+    // Most of the time, the content has ASCII chars (U+00**), but the opposite (U+**00) is uncommon.
+    // So, we count ASCII as if it was LE or BE, and decide from that.
+    if (asciiCharsBE > asciiCharsLE) return 'utf-16be';
+    if (asciiCharsBE < asciiCharsLE) return 'utf-16le';
+
+    // Couldn't decide (likely all zeros or not enough data).
+    return defaultEncoding || 'utf-16le';
+}
+
+
diff --git a/backend/node_modules/iconv-lite/encodings/utf32.js b/backend/node_modules/iconv-lite/encodings/utf32.js
new file mode 100644
index 0000000..2fa900a
--- /dev/null
+++ b/backend/node_modules/iconv-lite/encodings/utf32.js
@@ -0,0 +1,319 @@
+'use strict';
+
+var Buffer = require('safer-buffer').Buffer;
+
+// == UTF32-LE/BE codec. ==========================================================
+
+exports._utf32 = Utf32Codec;
+
+function Utf32Codec(codecOptions, iconv) {
+    this.iconv = iconv;
+    this.bomAware = true;
+    this.isLE = codecOptions.isLE;
+}
+
+exports.utf32le = { type: '_utf32', isLE: true };
+exports.utf32be = { type: '_utf32', isLE: false };
+
+// Aliases
+exports.ucs4le = 'utf32le';
+exports.ucs4be = 'utf32be';
+
+Utf32Codec.prototype.encoder = Utf32Encoder;
+Utf32Codec.prototype.decoder = Utf32Decoder;
+
+// -- Encoding
+
+function Utf32Encoder(options, codec) {
+    this.isLE = codec.isLE;
+    this.highSurrogate = 0;
+}
+
+Utf32Encoder.prototype.write = function(str) {
+    var src = Buffer.from(str, 'ucs2');
+    var dst = Buffer.alloc(src.length * 2);
+    var write32 = this.isLE ? dst.writeUInt32LE : dst.writeUInt32BE;
+    var offset = 0;
+
+    for (var i = 0; i < src.length; i += 2) {
+        var code = src.readUInt16LE(i);
+        var isHighSurrogate = (0xD800 <= code && code < 0xDC00);
+        var isLowSurrogate = (0xDC00 <= code && code < 0xE000);
+
+        if (this.highSurrogate) {
+            if (isHighSurrogate || !isLowSurrogate) {
+                // There shouldn't be two high surrogates in a row, nor a high surrogate which isn't followed by a low
+                // surrogate. If this happens, keep the pending high surrogate as a stand-alone semi-invalid character
+                // (technically wrong, but expected by some applications, like Windows file names).
+                write32.call(dst, this.highSurrogate, offset);
+                offset += 4;
+            }
+            else {
+                // Create 32-bit value from high and low surrogates;
+                var codepoint = (((this.highSurrogate - 0xD800) << 10) | (code - 0xDC00)) + 0x10000;
+
+                write32.call(dst, codepoint, offset);
+                offset += 4;
+                this.highSurrogate = 0;
+
+                continue;
+            }
+        }
+
+        if (isHighSurrogate)
+            this.highSurrogate = code;
+        else {
+            // Even if the current character is a low surrogate, with no previous high surrogate, we'll
+            // encode it as a semi-invalid stand-alone character for the same reasons expressed above for
+            // unpaired high surrogates.
+            write32.call(dst, code, offset);
+            offset += 4;
+            this.highSurrogate = 0;
+        }
+    }
+
+    if (offset < dst.length)
+        dst = dst.slice(0, offset);
+
+    return dst;
+};
+
+Utf32Encoder.prototype.end = function() {
+    // Treat any leftover high surrogate as a semi-valid independent character.
+    if (!this.highSurrogate)
+        return;
+
+    var buf = Buffer.alloc(4);
+
+    if (this.isLE)
+        buf.writeUInt32LE(this.highSurrogate, 0);
+    else
+        buf.writeUInt32BE(this.highSurrogate, 0);
+
+    this.highSurrogate = 0;
+
+    return buf;
+};
+
+// -- Decoding
+
+function Utf32Decoder(options, codec) {
+    this.isLE = codec.isLE;
+    this.badChar = codec.iconv.defaultCharUnicode.charCodeAt(0);
+    this.overflow = [];
+}
+
+Utf32Decoder.prototype.write = function(src) {
+    if (src.length === 0)
+        return '';
+
+    var i = 0;
+    var codepoint = 0;
+    var dst = Buffer.alloc(src.length + 4);
+    var offset = 0;
+    var isLE = this.isLE;
+    var overflow = this.overflow;
+    var badChar = this.badChar;
+
+    if (overflow.length > 0) {
+        for (; i < src.length && overflow.length < 4; i++)
+            overflow.push(src[i]);
+        
+        if (overflow.length === 4) {
+            // NOTE: codepoint is a signed int32 and can be negative.
+            // NOTE: We copied this block from below to help V8 optimize it (it works with array, not buffer).
+            if (isLE) {
+                codepoint = overflow[i] | (overflow[i+1] << 8) | (overflow[i+2] << 16) | (overflow[i+3] << 24);
+            } else {
+                codepoint = overflow[i+3] | (overflow[i+2] << 8) | (overflow[i+1] << 16) | (overflow[i] << 24);
+            }
+            overflow.length = 0;
+
+            offset = _writeCodepoint(dst, offset, codepoint, badChar);
+        }
+    }
+
+    // Main loop. Should be as optimized as possible.
+    for (; i < src.length - 3; i += 4) {
+        // NOTE: codepoint is a signed int32 and can be negative.
+        if (isLE) {
+            codepoint = src[i] | (src[i+1] << 8) | (src[i+2] << 16) | (src[i+3] << 24);
+        } else {
+            codepoint = src[i+3] | (src[i+2] << 8) | (src[i+1] << 16) | (src[i] << 24);
+        }
+        offset = _writeCodepoint(dst, offset, codepoint, badChar);
+    }
+
+    // Keep overflowing bytes.
+    for (; i < src.length; i++) {
+        overflow.push(src[i]);
+    }
+
+    return dst.slice(0, offset).toString('ucs2');
+};
+
+function _writeCodepoint(dst, offset, codepoint, badChar) {
+    // NOTE: codepoint is signed int32 and can be negative. We keep it that way to help V8 with optimizations.
+    if (codepoint < 0 || codepoint > 0x10FFFF) {
+        // Not a valid Unicode codepoint
+        codepoint = badChar;
+    } 
+
+    // Ephemeral Planes: Write high surrogate.
+    if (codepoint >= 0x10000) {
+        codepoint -= 0x10000;
+
+        var high = 0xD800 | (codepoint >> 10);
+        dst[offset++] = high & 0xff;
+        dst[offset++] = high >> 8;
+
+        // Low surrogate is written below.
+        var codepoint = 0xDC00 | (codepoint & 0x3FF);
+    }
+
+    // Write BMP char or low surrogate.
+    dst[offset++] = codepoint & 0xff;
+    dst[offset++] = codepoint >> 8;
+
+    return offset;
+};
+
+Utf32Decoder.prototype.end = function() {
+    this.overflow.length = 0;
+};
+
+// == UTF-32 Auto codec =============================================================
+// Decoder chooses automatically from UTF-32LE and UTF-32BE using BOM and space-based heuristic.
+// Defaults to UTF-32LE. http://en.wikipedia.org/wiki/UTF-32
+// Encoder/decoder default can be changed: iconv.decode(buf, 'utf32', {defaultEncoding: 'utf-32be'});
+
+// Encoder prepends BOM (which can be overridden with (addBOM: false}).
+
+exports.utf32 = Utf32AutoCodec;
+exports.ucs4 = 'utf32';
+
+function Utf32AutoCodec(options, iconv) {
+    this.iconv = iconv;
+}
+
+Utf32AutoCodec.prototype.encoder = Utf32AutoEncoder;
+Utf32AutoCodec.prototype.decoder = Utf32AutoDecoder;
+
+// -- Encoding
+
+function Utf32AutoEncoder(options, codec) {
+    options = options || {};
+
+    if (options.addBOM === undefined)
+        options.addBOM = true;
+
+    this.encoder = codec.iconv.getEncoder(options.defaultEncoding || 'utf-32le', options);
+}
+
+Utf32AutoEncoder.prototype.write = function(str) {
+    return this.encoder.write(str);
+};
+
+Utf32AutoEncoder.prototype.end = function() {
+    return this.encoder.end();
+};
+
+// -- Decoding
+
+function Utf32AutoDecoder(options, codec) {
+    this.decoder = null;
+    this.initialBufs = [];
+    this.initialBufsLen = 0;
+    this.options = options || {};
+    this.iconv = codec.iconv;
+}
+
+Utf32AutoDecoder.prototype.write = function(buf) {
+    if (!this.decoder) { 
+        // Codec is not chosen yet. Accumulate initial bytes.
+        this.initialBufs.push(buf);
+        this.initialBufsLen += buf.length;
+
+        if (this.initialBufsLen < 32) // We need more bytes to use space heuristic (see below)
+            return '';
+
+        // We have enough bytes -> detect endianness.
+        var encoding = detectEncoding(this.initialBufs, this.options.defaultEncoding);
+        this.decoder = this.iconv.getDecoder(encoding, this.options);
+
+        var resStr = '';
+        for (var i = 0; i < this.initialBufs.length; i++)
+            resStr += this.decoder.write(this.initialBufs[i]);
+
+        this.initialBufs.length = this.initialBufsLen = 0;
+        return resStr;
+    }
+
+    return this.decoder.write(buf);
+};
+
+Utf32AutoDecoder.prototype.end = function() {
+    if (!this.decoder) {
+        var encoding = detectEncoding(this.initialBufs, this.options.defaultEncoding);
+        this.decoder = this.iconv.getDecoder(encoding, this.options);
+
+        var resStr = '';
+        for (var i = 0; i < this.initialBufs.length; i++)
+            resStr += this.decoder.write(this.initialBufs[i]);
+
+        var trail = this.decoder.end();
+        if (trail)
+            resStr += trail;
+
+        this.initialBufs.length = this.initialBufsLen = 0;
+        return resStr;
+    }
+
+    return this.decoder.end();
+};
+
+function detectEncoding(bufs, defaultEncoding) {
+    var b = [];
+    var charsProcessed = 0;
+    var invalidLE = 0, invalidBE = 0;   // Number of invalid chars when decoded as LE or BE.
+    var bmpCharsLE = 0, bmpCharsBE = 0; // Number of BMP chars when decoded as LE or BE.
+
+    outer_loop:
+    for (var i = 0; i < bufs.length; i++) {
+        var buf = bufs[i];
+        for (var j = 0; j < buf.length; j++) {
+            b.push(buf[j]);
+            if (b.length === 4) {
+                if (charsProcessed === 0) {
+                    // Check BOM first.
+                    if (b[0] === 0xFF && b[1] === 0xFE && b[2] === 0 && b[3] === 0) {
+                        return 'utf-32le';
+                    }
+                    if (b[0] === 0 && b[1] === 0 && b[2] === 0xFE && b[3] === 0xFF) {
+                        return 'utf-32be';
+                    }
+                }
+
+                if (b[0] !== 0 || b[1] > 0x10) invalidBE++;
+                if (b[3] !== 0 || b[2] > 0x10) invalidLE++;
+
+                if (b[0] === 0 && b[1] === 0 && (b[2] !== 0 || b[3] !== 0)) bmpCharsBE++;
+                if ((b[0] !== 0 || b[1] !== 0) && b[2] === 0 && b[3] === 0) bmpCharsLE++;
+
+                b.length = 0;
+                charsProcessed++;
+
+                if (charsProcessed >= 100) {
+                    break outer_loop;
+                }
+            }
+        }
+    }
+
+    // Make decisions.
+    if (bmpCharsBE - invalidBE > bmpCharsLE - invalidLE)  return 'utf-32be';
+    if (bmpCharsBE - invalidBE < bmpCharsLE - invalidLE)  return 'utf-32le';
+
+    // Couldn't decide (likely all zeros or not enough data).
+    return defaultEncoding || 'utf-32le';
+}
diff --git a/backend/node_modules/iconv-lite/encodings/utf7.js b/backend/node_modules/iconv-lite/encodings/utf7.js
new file mode 100644
index 0000000..eacae34
--- /dev/null
+++ b/backend/node_modules/iconv-lite/encodings/utf7.js
@@ -0,0 +1,290 @@
+"use strict";
+var Buffer = require("safer-buffer").Buffer;
+
+// UTF-7 codec, according to https://tools.ietf.org/html/rfc2152
+// See also below a UTF-7-IMAP codec, according to http://tools.ietf.org/html/rfc3501#section-5.1.3
+
+exports.utf7 = Utf7Codec;
+exports.unicode11utf7 = 'utf7'; // Alias UNICODE-1-1-UTF-7
+function Utf7Codec(codecOptions, iconv) {
+    this.iconv = iconv;
+};
+
+Utf7Codec.prototype.encoder = Utf7Encoder;
+Utf7Codec.prototype.decoder = Utf7Decoder;
+Utf7Codec.prototype.bomAware = true;
+
+
+// -- Encoding
+
+var nonDirectChars = /[^A-Za-z0-9'\(\),-\.\/:\? \n\r\t]+/g;
+
+function Utf7Encoder(options, codec) {
+    this.iconv = codec.iconv;
+}
+
+Utf7Encoder.prototype.write = function(str) {
+    // Naive implementation.
+    // Non-direct chars are encoded as "+<base64>-"; single "+" char is encoded as "+-".
+    return Buffer.from(str.replace(nonDirectChars, function(chunk) {
+        return "+" + (chunk === '+' ? '' : 
+            this.iconv.encode(chunk, 'utf16-be').toString('base64').replace(/=+$/, '')) 
+            + "-";
+    }.bind(this)));
+}
+
+Utf7Encoder.prototype.end = function() {
+}
+
+
+// -- Decoding
+
+function Utf7Decoder(options, codec) {
+    this.iconv = codec.iconv;
+    this.inBase64 = false;
+    this.base64Accum = '';
+}
+
+var base64Regex = /[A-Za-z0-9\/+]/;
+var base64Chars = [];
+for (var i = 0; i < 256; i++)
+    base64Chars[i] = base64Regex.test(String.fromCharCode(i));
+
+var plusChar = '+'.charCodeAt(0), 
+    minusChar = '-'.charCodeAt(0),
+    andChar = '&'.charCodeAt(0);
+
+Utf7Decoder.prototype.write = function(buf) {
+    var res = "", lastI = 0,
+        inBase64 = this.inBase64,
+        base64Accum = this.base64Accum;
+
+    // The decoder is more involved as we must handle chunks in stream.
+
+    for (var i = 0; i < buf.length; i++) {
+        if (!inBase64) { // We're in direct mode.
+            // Write direct chars until '+'
+            if (buf[i] == plusChar) {
+                res += this.iconv.decode(buf.slice(lastI, i), "ascii"); // Write direct chars.
+                lastI = i+1;
+                inBase64 = true;
+            }
+        } else { // We decode base64.
+            if (!base64Chars[buf[i]]) { // Base64 ended.
+                if (i == lastI && buf[i] == minusChar) {// "+-" -> "+"
+                    res += "+";
+                } else {
+                    var b64str = base64Accum + this.iconv.decode(buf.slice(lastI, i), "ascii");
+                    res += this.iconv.decode(Buffer.from(b64str, 'base64'), "utf16-be");
+                }
+
+                if (buf[i] != minusChar) // Minus is absorbed after base64.
+                    i--;
+
+                lastI = i+1;
+                inBase64 = false;
+                base64Accum = '';
+            }
+        }
+    }
+
+    if (!inBase64) {
+        res += this.iconv.decode(buf.slice(lastI), "ascii"); // Write direct chars.
+    } else {
+        var b64str = base64Accum + this.iconv.decode(buf.slice(lastI), "ascii");
+
+        var canBeDecoded = b64str.length - (b64str.length % 8); // Minimal chunk: 2 quads -> 2x3 bytes -> 3 chars.
+        base64Accum = b64str.slice(canBeDecoded); // The rest will be decoded in future.
+        b64str = b64str.slice(0, canBeDecoded);
+
+        res += this.iconv.decode(Buffer.from(b64str, 'base64'), "utf16-be");
+    }
+
+    this.inBase64 = inBase64;
+    this.base64Accum = base64Accum;
+
+    return res;
+}
+
+Utf7Decoder.prototype.end = function() {
+    var res = "";
+    if (this.inBase64 && this.base64Accum.length > 0)
+        res = this.iconv.decode(Buffer.from(this.base64Accum, 'base64'), "utf16-be");
+
+    this.inBase64 = false;
+    this.base64Accum = '';
+    return res;
+}
+
+
+// UTF-7-IMAP codec.
+// RFC3501 Sec. 5.1.3 Modified UTF-7 (http://tools.ietf.org/html/rfc3501#section-5.1.3)
+// Differences:
+//  * Base64 part is started by "&" instead of "+"
+//  * Direct characters are 0x20-0x7E, except "&" (0x26)
+//  * In Base64, "," is used instead of "/"
+//  * Base64 must not be used to represent direct characters.
+//  * No implicit shift back from Base64 (should always end with '-')
+//  * String must end in non-shifted position.
+//  * "-&" while in base64 is not allowed.
+
+
+exports.utf7imap = Utf7IMAPCodec;
+function Utf7IMAPCodec(codecOptions, iconv) {
+    this.iconv = iconv;
+};
+
+Utf7IMAPCodec.prototype.encoder = Utf7IMAPEncoder;
+Utf7IMAPCodec.prototype.decoder = Utf7IMAPDecoder;
+Utf7IMAPCodec.prototype.bomAware = true;
+
+
+// -- Encoding
+
+function Utf7IMAPEncoder(options, codec) {
+    this.iconv = codec.iconv;
+    this.inBase64 = false;
+    this.base64Accum = Buffer.alloc(6);
+    this.base64AccumIdx = 0;
+}
+
+Utf7IMAPEncoder.prototype.write = function(str) {
+    var inBase64 = this.inBase64,
+        base64Accum = this.base64Accum,
+        base64AccumIdx = this.base64AccumIdx,
+        buf = Buffer.alloc(str.length*5 + 10), bufIdx = 0;
+
+    for (var i = 0; i < str.length; i++) {
+        var uChar = str.charCodeAt(i);
+        if (0x20 <= uChar && uChar <= 0x7E) { // Direct character or '&'.
+            if (inBase64) {
+                if (base64AccumIdx > 0) {
+                    bufIdx += buf.write(base64Accum.slice(0, base64AccumIdx).toString('base64').replace(/\//g, ',').replace(/=+$/, ''), bufIdx);
+                    base64AccumIdx = 0;
+                }
+
+                buf[bufIdx++] = minusChar; // Write '-', then go to direct mode.
+                inBase64 = false;
+            }
+
+            if (!inBase64) {
+                buf[bufIdx++] = uChar; // Write direct character
+
+                if (uChar === andChar)  // Ampersand -> '&-'
+                    buf[bufIdx++] = minusChar;
+            }
+
+        } else { // Non-direct character
+            if (!inBase64) {
+                buf[bufIdx++] = andChar; // Write '&', then go to base64 mode.
+                inBase64 = true;
+            }
+            if (inBase64) {
+                base64Accum[base64AccumIdx++] = uChar >> 8;
+                base64Accum[base64AccumIdx++] = uChar & 0xFF;
+
+                if (base64AccumIdx == base64Accum.length) {
+                    bufIdx += buf.write(base64Accum.toString('base64').replace(/\//g, ','), bufIdx);
+                    base64AccumIdx = 0;
+                }
+            }
+        }
+    }
+
+    this.inBase64 = inBase64;
+    this.base64AccumIdx = base64AccumIdx;
+
+    return buf.slice(0, bufIdx);
+}
+
+Utf7IMAPEncoder.prototype.end = function() {
+    var buf = Buffer.alloc(10), bufIdx = 0;
+    if (this.inBase64) {
+        if (this.base64AccumIdx > 0) {
+            bufIdx += buf.write(this.base64Accum.slice(0, this.base64AccumIdx).toString('base64').replace(/\//g, ',').replace(/=+$/, ''), bufIdx);
+            this.base64AccumIdx = 0;
+        }
+
+        buf[bufIdx++] = minusChar; // Write '-', then go to direct mode.
+        this.inBase64 = false;
+    }
+
+    return buf.slice(0, bufIdx);
+}
+
+
+// -- Decoding
+
+function Utf7IMAPDecoder(options, codec) {
+    this.iconv = codec.iconv;
+    this.inBase64 = false;
+    this.base64Accum = '';
+}
+
+var base64IMAPChars = base64Chars.slice();
+base64IMAPChars[','.charCodeAt(0)] = true;
+
+Utf7IMAPDecoder.prototype.write = function(buf) {
+    var res = "", lastI = 0,
+        inBase64 = this.inBase64,
+        base64Accum = this.base64Accum;
+
+    // The decoder is more involved as we must handle chunks in stream.
+    // It is forgiving, closer to standard UTF-7 (for example, '-' is optional at the end).
+
+    for (var i = 0; i < buf.length; i++) {
+        if (!inBase64) { // We're in direct mode.
+            // Write direct chars until '&'
+            if (buf[i] == andChar) {
+                res += this.iconv.decode(buf.slice(lastI, i), "ascii"); // Write direct chars.
+                lastI = i+1;
+                inBase64 = true;
+            }
+        } else { // We decode base64.
+            if (!base64IMAPChars[buf[i]]) { // Base64 ended.
+                if (i == lastI && buf[i] == minusChar) { // "&-" -> "&"
+                    res += "&";
+                } else {
+                    var b64str = base64Accum + this.iconv.decode(buf.slice(lastI, i), "ascii").replace(/,/g, '/');
+                    res += this.iconv.decode(Buffer.from(b64str, 'base64'), "utf16-be");
+                }
+
+                if (buf[i] != minusChar) // Minus may be absorbed after base64.
+                    i--;
+
+                lastI = i+1;
+                inBase64 = false;
+                base64Accum = '';
+            }
+        }
+    }
+
+    if (!inBase64) {
+        res += this.iconv.decode(buf.slice(lastI), "ascii"); // Write direct chars.
+    } else {
+        var b64str = base64Accum + this.iconv.decode(buf.slice(lastI), "ascii").replace(/,/g, '/');
+
+        var canBeDecoded = b64str.length - (b64str.length % 8); // Minimal chunk: 2 quads -> 2x3 bytes -> 3 chars.
+        base64Accum = b64str.slice(canBeDecoded); // The rest will be decoded in future.
+        b64str = b64str.slice(0, canBeDecoded);
+
+        res += this.iconv.decode(Buffer.from(b64str, 'base64'), "utf16-be");
+    }
+
+    this.inBase64 = inBase64;
+    this.base64Accum = base64Accum;
+
+    return res;
+}
+
+Utf7IMAPDecoder.prototype.end = function() {
+    var res = "";
+    if (this.inBase64 && this.base64Accum.length > 0)
+        res = this.iconv.decode(Buffer.from(this.base64Accum, 'base64'), "utf16-be");
+
+    this.inBase64 = false;
+    this.base64Accum = '';
+    return res;
+}
+
+
diff --git a/backend/node_modules/iconv-lite/lib/bom-handling.js b/backend/node_modules/iconv-lite/lib/bom-handling.js
new file mode 100644
index 0000000..1050872
--- /dev/null
+++ b/backend/node_modules/iconv-lite/lib/bom-handling.js
@@ -0,0 +1,52 @@
+"use strict";
+
+var BOMChar = '\uFEFF';
+
+exports.PrependBOM = PrependBOMWrapper
+function PrependBOMWrapper(encoder, options) {
+    this.encoder = encoder;
+    this.addBOM = true;
+}
+
+PrependBOMWrapper.prototype.write = function(str) {
+    if (this.addBOM) {
+        str = BOMChar + str;
+        this.addBOM = false;
+    }
+
+    return this.encoder.write(str);
+}
+
+PrependBOMWrapper.prototype.end = function() {
+    return this.encoder.end();
+}
+
+
+//------------------------------------------------------------------------------
+
+exports.StripBOM = StripBOMWrapper;
+function StripBOMWrapper(decoder, options) {
+    this.decoder = decoder;
+    this.pass = false;
+    this.options = options || {};
+}
+
+StripBOMWrapper.prototype.write = function(buf) {
+    var res = this.decoder.write(buf);
+    if (this.pass || !res)
+        return res;
+
+    if (res[0] === BOMChar) {
+        res = res.slice(1);
+        if (typeof this.options.stripBOM === 'function')
+            this.options.stripBOM();
+    }
+
+    this.pass = true;
+    return res;
+}
+
+StripBOMWrapper.prototype.end = function() {
+    return this.decoder.end();
+}
+
diff --git a/backend/node_modules/iconv-lite/lib/index.d.ts b/backend/node_modules/iconv-lite/lib/index.d.ts
new file mode 100644
index 0000000..99f200f
--- /dev/null
+++ b/backend/node_modules/iconv-lite/lib/index.d.ts
@@ -0,0 +1,41 @@
+/*---------------------------------------------------------------------------------------------
+ *  Copyright (c) Microsoft Corporation. All rights reserved.
+ *  Licensed under the MIT License.
+ *  REQUIREMENT: This definition is dependent on the @types/node definition.
+ *  Install with `npm install @types/node --save-dev`
+ *--------------------------------------------------------------------------------------------*/
+
+declare module 'iconv-lite' {
+	// Basic API
+	export function decode(buffer: Buffer, encoding: string, options?: Options): string;
+
+	export function encode(content: string, encoding: string, options?: Options): Buffer;
+
+	export function encodingExists(encoding: string): boolean;
+
+	// Stream API
+	export function decodeStream(encoding: string, options?: Options): NodeJS.ReadWriteStream;
+
+	export function encodeStream(encoding: string, options?: Options): NodeJS.ReadWriteStream;
+
+	// Low-level stream APIs
+	export function getEncoder(encoding: string, options?: Options): EncoderStream;
+
+	export function getDecoder(encoding: string, options?: Options): DecoderStream;
+}
+
+export interface Options {
+    stripBOM?: boolean;
+    addBOM?: boolean;
+    defaultEncoding?: string;
+}
+
+export interface EncoderStream {
+	write(str: string): Buffer;
+	end(): Buffer | undefined;
+}
+
+export interface DecoderStream {
+	write(buf: Buffer): string;
+	end(): string | undefined;
+}
diff --git a/backend/node_modules/iconv-lite/lib/index.js b/backend/node_modules/iconv-lite/lib/index.js
new file mode 100644
index 0000000..657701c
--- /dev/null
+++ b/backend/node_modules/iconv-lite/lib/index.js
@@ -0,0 +1,180 @@
+"use strict";
+
+var Buffer = require("safer-buffer").Buffer;
+
+var bomHandling = require("./bom-handling"),
+    iconv = module.exports;
+
+// All codecs and aliases are kept here, keyed by encoding name/alias.
+// They are lazy loaded in `iconv.getCodec` from `encodings/index.js`.
+iconv.encodings = null;
+
+// Characters emitted in case of error.
+iconv.defaultCharUnicode = '�';
+iconv.defaultCharSingleByte = '?';
+
+// Public API.
+iconv.encode = function encode(str, encoding, options) {
+    str = "" + (str || ""); // Ensure string.
+
+    var encoder = iconv.getEncoder(encoding, options);
+
+    var res = encoder.write(str);
+    var trail = encoder.end();
+    
+    return (trail && trail.length > 0) ? Buffer.concat([res, trail]) : res;
+}
+
+iconv.decode = function decode(buf, encoding, options) {
+    if (typeof buf === 'string') {
+        if (!iconv.skipDecodeWarning) {
+            console.error('Iconv-lite warning: decode()-ing strings is deprecated. Refer to https://github.com/ashtuchkin/iconv-lite/wiki/Use-Buffers-when-decoding');
+            iconv.skipDecodeWarning = true;
+        }
+
+        buf = Buffer.from("" + (buf || ""), "binary"); // Ensure buffer.
+    }
+
+    var decoder = iconv.getDecoder(encoding, options);
+
+    var res = decoder.write(buf);
+    var trail = decoder.end();
+
+    return trail ? (res + trail) : res;
+}
+
+iconv.encodingExists = function encodingExists(enc) {
+    try {
+        iconv.getCodec(enc);
+        return true;
+    } catch (e) {
+        return false;
+    }
+}
+
+// Legacy aliases to convert functions
+iconv.toEncoding = iconv.encode;
+iconv.fromEncoding = iconv.decode;
+
+// Search for a codec in iconv.encodings. Cache codec data in iconv._codecDataCache.
+iconv._codecDataCache = {};
+iconv.getCodec = function getCodec(encoding) {
+    if (!iconv.encodings)
+        iconv.encodings = require("../encodings"); // Lazy load all encoding definitions.
+    
+    // Canonicalize encoding name: strip all non-alphanumeric chars and appended year.
+    var enc = iconv._canonicalizeEncoding(encoding);
+
+    // Traverse iconv.encodings to find actual codec.
+    var codecOptions = {};
+    while (true) {
+        var codec = iconv._codecDataCache[enc];
+        if (codec)
+            return codec;
+
+        var codecDef = iconv.encodings[enc];
+
+        switch (typeof codecDef) {
+            case "string": // Direct alias to other encoding.
+                enc = codecDef;
+                break;
+
+            case "object": // Alias with options. Can be layered.
+                for (var key in codecDef)
+                    codecOptions[key] = codecDef[key];
+
+                if (!codecOptions.encodingName)
+                    codecOptions.encodingName = enc;
+                
+                enc = codecDef.type;
+                break;
+
+            case "function": // Codec itself.
+                if (!codecOptions.encodingName)
+                    codecOptions.encodingName = enc;
+
+                // The codec function must load all tables and return object with .encoder and .decoder methods.
+                // It'll be called only once (for each different options object).
+                codec = new codecDef(codecOptions, iconv);
+
+                iconv._codecDataCache[codecOptions.encodingName] = codec; // Save it to be reused later.
+                return codec;
+
+            default:
+                throw new Error("Encoding not recognized: '" + encoding + "' (searched as: '"+enc+"')");
+        }
+    }
+}
+
+iconv._canonicalizeEncoding = function(encoding) {
+    // Canonicalize encoding name: strip all non-alphanumeric chars and appended year.
+    return (''+encoding).toLowerCase().replace(/:\d{4}$|[^0-9a-z]/g, "");
+}
+
+iconv.getEncoder = function getEncoder(encoding, options) {
+    var codec = iconv.getCodec(encoding),
+        encoder = new codec.encoder(options, codec);
+
+    if (codec.bomAware && options && options.addBOM)
+        encoder = new bomHandling.PrependBOM(encoder, options);
+
+    return encoder;
+}
+
+iconv.getDecoder = function getDecoder(encoding, options) {
+    var codec = iconv.getCodec(encoding),
+        decoder = new codec.decoder(options, codec);
+
+    if (codec.bomAware && !(options && options.stripBOM === false))
+        decoder = new bomHandling.StripBOM(decoder, options);
+
+    return decoder;
+}
+
+// Streaming API
+// NOTE: Streaming API naturally depends on 'stream' module from Node.js. Unfortunately in browser environments this module can add
+// up to 100Kb to the output bundle. To avoid unnecessary code bloat, we don't enable Streaming API in browser by default.
+// If you would like to enable it explicitly, please add the following code to your app:
+// > iconv.enableStreamingAPI(require('stream'));
+iconv.enableStreamingAPI = function enableStreamingAPI(stream_module) {
+    if (iconv.supportsStreams)
+        return;
+
+    // Dependency-inject stream module to create IconvLite stream classes.
+    var streams = require("./streams")(stream_module);
+
+    // Not public API yet, but expose the stream classes.
+    iconv.IconvLiteEncoderStream = streams.IconvLiteEncoderStream;
+    iconv.IconvLiteDecoderStream = streams.IconvLiteDecoderStream;
+
+    // Streaming API.
+    iconv.encodeStream = function encodeStream(encoding, options) {
+        return new iconv.IconvLiteEncoderStream(iconv.getEncoder(encoding, options), options);
+    }
+
+    iconv.decodeStream = function decodeStream(encoding, options) {
+        return new iconv.IconvLiteDecoderStream(iconv.getDecoder(encoding, options), options);
+    }
+
+    iconv.supportsStreams = true;
+}
+
+// Enable Streaming API automatically if 'stream' module is available and non-empty (the majority of environments).
+var stream_module;
+try {
+    stream_module = require("stream");
+} catch (e) {}
+
+if (stream_module && stream_module.Transform) {
+    iconv.enableStreamingAPI(stream_module);
+
+} else {
+    // In rare cases where 'stream' module is not available by default, throw a helpful exception.
+    iconv.encodeStream = iconv.decodeStream = function() {
+        throw new Error("iconv-lite Streaming API is not enabled. Use iconv.enableStreamingAPI(require('stream')); to enable it.");
+    };
+}
+
+if ("Ā" != "\u0100") {
+    console.error("iconv-lite warning: js files use non-utf8 encoding. See https://github.com/ashtuchkin/iconv-lite/wiki/Javascript-source-file-encodings for more info.");
+}
diff --git a/backend/node_modules/iconv-lite/lib/streams.js b/backend/node_modules/iconv-lite/lib/streams.js
new file mode 100644
index 0000000..a150648
--- /dev/null
+++ b/backend/node_modules/iconv-lite/lib/streams.js
@@ -0,0 +1,109 @@
+"use strict";
+
+var Buffer = require("safer-buffer").Buffer;
+
+// NOTE: Due to 'stream' module being pretty large (~100Kb, significant in browser environments), 
+// we opt to dependency-inject it instead of creating a hard dependency.
+module.exports = function(stream_module) {
+    var Transform = stream_module.Transform;
+
+    // == Encoder stream =======================================================
+
+    function IconvLiteEncoderStream(conv, options) {
+        this.conv = conv;
+        options = options || {};
+        options.decodeStrings = false; // We accept only strings, so we don't need to decode them.
+        Transform.call(this, options);
+    }
+
+    IconvLiteEncoderStream.prototype = Object.create(Transform.prototype, {
+        constructor: { value: IconvLiteEncoderStream }
+    });
+
+    IconvLiteEncoderStream.prototype._transform = function(chunk, encoding, done) {
+        if (typeof chunk != 'string')
+            return done(new Error("Iconv encoding stream needs strings as its input."));
+        try {
+            var res = this.conv.write(chunk);
+            if (res && res.length) this.push(res);
+            done();
+        }
+        catch (e) {
+            done(e);
+        }
+    }
+
+    IconvLiteEncoderStream.prototype._flush = function(done) {
+        try {
+            var res = this.conv.end();
+            if (res && res.length) this.push(res);
+            done();
+        }
+        catch (e) {
+            done(e);
+        }
+    }
+
+    IconvLiteEncoderStream.prototype.collect = function(cb) {
+        var chunks = [];
+        this.on('error', cb);
+        this.on('data', function(chunk) { chunks.push(chunk); });
+        this.on('end', function() {
+            cb(null, Buffer.concat(chunks));
+        });
+        return this;
+    }
+
+
+    // == Decoder stream =======================================================
+
+    function IconvLiteDecoderStream(conv, options) {
+        this.conv = conv;
+        options = options || {};
+        options.encoding = this.encoding = 'utf8'; // We output strings.
+        Transform.call(this, options);
+    }
+
+    IconvLiteDecoderStream.prototype = Object.create(Transform.prototype, {
+        constructor: { value: IconvLiteDecoderStream }
+    });
+
+    IconvLiteDecoderStream.prototype._transform = function(chunk, encoding, done) {
+        if (!Buffer.isBuffer(chunk) && !(chunk instanceof Uint8Array))
+            return done(new Error("Iconv decoding stream needs buffers as its input."));
+        try {
+            var res = this.conv.write(chunk);
+            if (res && res.length) this.push(res, this.encoding);
+            done();
+        }
+        catch (e) {
+            done(e);
+        }
+    }
+
+    IconvLiteDecoderStream.prototype._flush = function(done) {
+        try {
+            var res = this.conv.end();
+            if (res && res.length) this.push(res, this.encoding);                
+            done();
+        }
+        catch (e) {
+            done(e);
+        }
+    }
+
+    IconvLiteDecoderStream.prototype.collect = function(cb) {
+        var res = '';
+        this.on('error', cb);
+        this.on('data', function(chunk) { res += chunk; });
+        this.on('end', function() {
+            cb(null, res);
+        });
+        return this;
+    }
+
+    return {
+        IconvLiteEncoderStream: IconvLiteEncoderStream,
+        IconvLiteDecoderStream: IconvLiteDecoderStream,
+    };
+};
diff --git a/backend/node_modules/iconv-lite/package.json b/backend/node_modules/iconv-lite/package.json
new file mode 100644
index 0000000..d351115
--- /dev/null
+++ b/backend/node_modules/iconv-lite/package.json
@@ -0,0 +1,44 @@
+{
+    "name": "iconv-lite",
+    "description": "Convert character encodings in pure javascript.",
+    "version": "0.6.3",
+    "license": "MIT",
+    "keywords": [
+        "iconv",
+        "convert",
+        "charset",
+        "icu"
+    ],
+    "author": "Alexander Shtuchkin <ashtuchkin@gmail.com>",
+    "main": "./lib/index.js",
+    "typings": "./lib/index.d.ts",
+    "homepage": "https://github.com/ashtuchkin/iconv-lite",
+    "bugs": "https://github.com/ashtuchkin/iconv-lite/issues",
+    "repository": {
+        "type": "git",
+        "url": "git://github.com/ashtuchkin/iconv-lite.git"
+    },
+    "engines": {
+        "node": ">=0.10.0"
+    },
+    "scripts": {
+        "coverage": "c8 _mocha --grep .",
+        "test": "mocha --reporter spec --grep ."
+    },
+    "browser": {
+        "stream": false
+    },
+    "devDependencies": {
+        "async": "^3.2.0",
+        "c8": "^7.2.0",
+        "errto": "^0.2.1",
+        "iconv": "^2.3.5",
+        "mocha": "^3.5.3",
+        "request": "^2.88.2",
+        "semver": "^6.3.0",
+        "unorm": "^1.6.0"
+    },
+    "dependencies": {
+        "safer-buffer": ">= 2.1.2 < 3.0.0"
+    }
+}
diff --git a/backend/node_modules/inherits/LICENSE b/backend/node_modules/inherits/LICENSE
new file mode 100644
index 0000000..dea3013
--- /dev/null
+++ b/backend/node_modules/inherits/LICENSE
@@ -0,0 +1,16 @@
+The ISC License
+
+Copyright (c) Isaac Z. Schlueter
+
+Permission to use, copy, modify, and/or distribute this software for any
+purpose with or without fee is hereby granted, provided that the above
+copyright notice and this permission notice appear in all copies.
+
+THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH
+REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
+FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,
+INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
+LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
+OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+PERFORMANCE OF THIS SOFTWARE.
+
diff --git a/backend/node_modules/inherits/README.md b/backend/node_modules/inherits/README.md
new file mode 100644
index 0000000..b1c5665
--- /dev/null
+++ b/backend/node_modules/inherits/README.md
@@ -0,0 +1,42 @@
+Browser-friendly inheritance fully compatible with standard node.js
+[inherits](http://nodejs.org/api/util.html#util_util_inherits_constructor_superconstructor).
+
+This package exports standard `inherits` from node.js `util` module in
+node environment, but also provides alternative browser-friendly
+implementation through [browser
+field](https://gist.github.com/shtylman/4339901). Alternative
+implementation is a literal copy of standard one located in standalone
+module to avoid requiring of `util`. It also has a shim for old
+browsers with no `Object.create` support.
+
+While keeping you sure you are using standard `inherits`
+implementation in node.js environment, it allows bundlers such as
+[browserify](https://github.com/substack/node-browserify) to not
+include full `util` package to your client code if all you need is
+just `inherits` function. It worth, because browser shim for `util`
+package is large and `inherits` is often the single function you need
+from it.
+
+It's recommended to use this package instead of
+`require('util').inherits` for any code that has chances to be used
+not only in node.js but in browser too.
+
+## usage
+
+```js
+var inherits = require('inherits');
+// then use exactly as the standard one
+```
+
+## note on version ~1.0
+
+Version ~1.0 had completely different motivation and is not compatible
+neither with 2.0 nor with standard node.js `inherits`.
+
+If you are using version ~1.0 and planning to switch to ~2.0, be
+careful:
+
+* new version uses `super_` instead of `super` for referencing
+  superclass
+* new version overwrites current prototype while old one preserves any
+  existing fields on it
diff --git a/backend/node_modules/inherits/inherits.js b/backend/node_modules/inherits/inherits.js
new file mode 100644
index 0000000..f71f2d9
--- /dev/null
+++ b/backend/node_modules/inherits/inherits.js
@@ -0,0 +1,9 @@
+try {
+  var util = require('util');
+  /* istanbul ignore next */
+  if (typeof util.inherits !== 'function') throw '';
+  module.exports = util.inherits;
+} catch (e) {
+  /* istanbul ignore next */
+  module.exports = require('./inherits_browser.js');
+}
diff --git a/backend/node_modules/inherits/inherits_browser.js b/backend/node_modules/inherits/inherits_browser.js
new file mode 100644
index 0000000..86bbb3d
--- /dev/null
+++ b/backend/node_modules/inherits/inherits_browser.js
@@ -0,0 +1,27 @@
+if (typeof Object.create === 'function') {
+  // implementation from standard node.js 'util' module
+  module.exports = function inherits(ctor, superCtor) {
+    if (superCtor) {
+      ctor.super_ = superCtor
+      ctor.prototype = Object.create(superCtor.prototype, {
+        constructor: {
+          value: ctor,
+          enumerable: false,
+          writable: true,
+          configurable: true
+        }
+      })
+    }
+  };
+} else {
+  // old school shim for old browsers
+  module.exports = function inherits(ctor, superCtor) {
+    if (superCtor) {
+      ctor.super_ = superCtor
+      var TempCtor = function () {}
+      TempCtor.prototype = superCtor.prototype
+      ctor.prototype = new TempCtor()
+      ctor.prototype.constructor = ctor
+    }
+  }
+}
diff --git a/backend/node_modules/inherits/package.json b/backend/node_modules/inherits/package.json
new file mode 100644
index 0000000..37b4366
--- /dev/null
+++ b/backend/node_modules/inherits/package.json
@@ -0,0 +1,29 @@
+{
+  "name": "inherits",
+  "description": "Browser-friendly inheritance fully compatible with standard node.js inherits()",
+  "version": "2.0.4",
+  "keywords": [
+    "inheritance",
+    "class",
+    "klass",
+    "oop",
+    "object-oriented",
+    "inherits",
+    "browser",
+    "browserify"
+  ],
+  "main": "./inherits.js",
+  "browser": "./inherits_browser.js",
+  "repository": "git://github.com/isaacs/inherits",
+  "license": "ISC",
+  "scripts": {
+    "test": "tap"
+  },
+  "devDependencies": {
+    "tap": "^14.2.4"
+  },
+  "files": [
+    "inherits.js",
+    "inherits_browser.js"
+  ]
+}
diff --git a/backend/node_modules/ipaddr.js/LICENSE b/backend/node_modules/ipaddr.js/LICENSE
new file mode 100644
index 0000000..f6b37b5
--- /dev/null
+++ b/backend/node_modules/ipaddr.js/LICENSE
@@ -0,0 +1,19 @@
+Copyright (C) 2011-2017 whitequark <whitequark@whitequark.org>
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
diff --git a/backend/node_modules/ipaddr.js/README.md b/backend/node_modules/ipaddr.js/README.md
new file mode 100644
index 0000000..f57725b
--- /dev/null
+++ b/backend/node_modules/ipaddr.js/README.md
@@ -0,0 +1,233 @@
+# ipaddr.js — an IPv6 and IPv4 address manipulation library [![Build Status](https://travis-ci.org/whitequark/ipaddr.js.svg)](https://travis-ci.org/whitequark/ipaddr.js)
+
+ipaddr.js is a small (1.9K minified and gzipped) library for manipulating
+IP addresses in JavaScript environments. It runs on both CommonJS runtimes
+(e.g. [nodejs]) and in a web browser.
+
+ipaddr.js allows you to verify and parse string representation of an IP
+address, match it against a CIDR range or range list, determine if it falls
+into some reserved ranges (examples include loopback and private ranges),
+and convert between IPv4 and IPv4-mapped IPv6 addresses.
+
+[nodejs]: http://nodejs.org
+
+## Installation
+
+`npm install ipaddr.js`
+
+or
+
+`bower install ipaddr.js`
+
+## API
+
+ipaddr.js defines one object in the global scope: `ipaddr`. In CommonJS,
+it is exported from the module:
+
+```js
+var ipaddr = require('ipaddr.js');
+```
+
+The API consists of several global methods and two classes: ipaddr.IPv6 and ipaddr.IPv4.
+
+### Global methods
+
+There are three global methods defined: `ipaddr.isValid`, `ipaddr.parse` and
+`ipaddr.process`. All of them receive a string as a single parameter.
+
+The `ipaddr.isValid` method returns `true` if the address is a valid IPv4 or
+IPv6 address, and `false` otherwise. It does not throw any exceptions.
+
+The `ipaddr.parse` method returns an object representing the IP address,
+or throws an `Error` if the passed string is not a valid representation of an
+IP address.
+
+The `ipaddr.process` method works just like the `ipaddr.parse` one, but it
+automatically converts IPv4-mapped IPv6 addresses to their IPv4 counterparts
+before returning. It is useful when you have a Node.js instance listening
+on an IPv6 socket, and the `net.ivp6.bindv6only` sysctl parameter (or its
+equivalent on non-Linux OS) is set to 0. In this case, you can accept IPv4
+connections on your IPv6-only socket, but the remote address will be mangled.
+Use `ipaddr.process` method to automatically demangle it.
+
+### Object representation
+
+Parsing methods return an object which descends from `ipaddr.IPv6` or
+`ipaddr.IPv4`. These objects share some properties, but most of them differ.
+
+#### Shared properties
+
+One can determine the type of address by calling `addr.kind()`. It will return
+either `"ipv6"` or `"ipv4"`.
+
+An address can be converted back to its string representation with `addr.toString()`.
+Note that this method:
+ * does not return the original string used to create the object (in fact, there is
+   no way of getting that string)
+ * returns a compact representation (when it is applicable)
+
+A `match(range, bits)` method can be used to check if the address falls into a
+certain CIDR range.
+Note that an address can be (obviously) matched only against an address of the same type.
+
+For example:
+
+```js
+var addr = ipaddr.parse("2001:db8:1234::1");
+var range = ipaddr.parse("2001:db8::");
+
+addr.match(range, 32); // => true
+```
+
+Alternatively, `match` can also be called as `match([range, bits])`. In this way,
+it can be used together with the `parseCIDR(string)` method, which parses an IP
+address together with a CIDR range.
+
+For example:
+
+```js
+var addr = ipaddr.parse("2001:db8:1234::1");
+
+addr.match(ipaddr.parseCIDR("2001:db8::/32")); // => true
+```
+
+A `range()` method returns one of predefined names for several special ranges defined
+by IP protocols. The exact names (and their respective CIDR ranges) can be looked up
+in the source: [IPv6 ranges] and [IPv4 ranges]. Some common ones include `"unicast"`
+(the default one) and `"reserved"`.
+
+You can match against your own range list by using
+`ipaddr.subnetMatch(address, rangeList, defaultName)` method. It can work with a mix of IPv6 or IPv4 addresses, and accepts a name-to-subnet map as the range list. For example:
+
+```js
+var rangeList = {
+  documentationOnly: [ ipaddr.parse('2001:db8::'), 32 ],
+  tunnelProviders: [
+    [ ipaddr.parse('2001:470::'), 32 ], // he.net
+    [ ipaddr.parse('2001:5c0::'), 32 ]  // freenet6
+  ]
+};
+ipaddr.subnetMatch(ipaddr.parse('2001:470:8:66::1'), rangeList, 'unknown'); // => "tunnelProviders"
+```
+
+The addresses can be converted to their byte representation with `toByteArray()`.
+(Actually, JavaScript mostly does not know about byte buffers. They are emulated with
+arrays of numbers, each in range of 0..255.)
+
+```js
+var bytes = ipaddr.parse('2a00:1450:8007::68').toByteArray(); // ipv6.google.com
+bytes // => [42, 0x00, 0x14, 0x50, 0x80, 0x07, 0x00, <zeroes...>, 0x00, 0x68 ]
+```
+
+The `ipaddr.IPv4` and `ipaddr.IPv6` objects have some methods defined, too. All of them
+have the same interface for both protocols, and are similar to global methods.
+
+`ipaddr.IPvX.isValid(string)` can be used to check if the string is a valid address
+for particular protocol, and `ipaddr.IPvX.parse(string)` is the error-throwing parser.
+
+`ipaddr.IPvX.isValid(string)` uses the same format for parsing as the POSIX `inet_ntoa` function, which accepts unusual formats like `0xc0.168.1.1` or `0x10000000`. The function `ipaddr.IPv4.isValidFourPartDecimal(string)` validates the IPv4 address and also ensures that it is written in four-part decimal format.
+
+[IPv6 ranges]: https://github.com/whitequark/ipaddr.js/blob/master/src/ipaddr.coffee#L186
+[IPv4 ranges]: https://github.com/whitequark/ipaddr.js/blob/master/src/ipaddr.coffee#L71
+
+#### IPv6 properties
+
+Sometimes you will want to convert IPv6 not to a compact string representation (with
+the `::` substitution); the `toNormalizedString()` method will return an address where
+all zeroes are explicit.
+
+For example:
+
+```js
+var addr = ipaddr.parse("2001:0db8::0001");
+addr.toString(); // => "2001:db8::1"
+addr.toNormalizedString(); // => "2001:db8:0:0:0:0:0:1"
+```
+
+The `isIPv4MappedAddress()` method will return `true` if this address is an IPv4-mapped
+one, and `toIPv4Address()` will return an IPv4 object address.
+
+To access the underlying binary representation of the address, use `addr.parts`.
+
+```js
+var addr = ipaddr.parse("2001:db8:10::1234:DEAD");
+addr.parts // => [0x2001, 0xdb8, 0x10, 0, 0, 0, 0x1234, 0xdead]
+```
+
+A IPv6 zone index can be accessed via `addr.zoneId`:
+
+```js
+var addr = ipaddr.parse("2001:db8::%eth0");
+addr.zoneId // => 'eth0'
+```
+
+#### IPv4 properties
+
+`toIPv4MappedAddress()` will return a corresponding IPv4-mapped IPv6 address.
+
+To access the underlying representation of the address, use `addr.octets`.
+
+```js
+var addr = ipaddr.parse("192.168.1.1");
+addr.octets // => [192, 168, 1, 1]
+```
+
+`prefixLengthFromSubnetMask()` will return a CIDR prefix length for a valid IPv4 netmask or
+null if the netmask is not valid.
+
+```js
+ipaddr.IPv4.parse('255.255.255.240').prefixLengthFromSubnetMask() == 28
+ipaddr.IPv4.parse('255.192.164.0').prefixLengthFromSubnetMask()  == null
+```
+
+`subnetMaskFromPrefixLength()` will return an IPv4 netmask for a valid CIDR prefix length.
+
+```js
+ipaddr.IPv4.subnetMaskFromPrefixLength(24) == "255.255.255.0"
+ipaddr.IPv4.subnetMaskFromPrefixLength(29) == "255.255.255.248"
+```
+
+`broadcastAddressFromCIDR()` will return the broadcast address for a given IPv4 interface and netmask in CIDR notation.
+```js
+ipaddr.IPv4.broadcastAddressFromCIDR("172.0.0.1/24") == "172.0.0.255"
+```
+`networkAddressFromCIDR()` will return the network address for a given IPv4 interface and netmask in CIDR notation.
+```js
+ipaddr.IPv4.networkAddressFromCIDR("172.0.0.1/24") == "172.0.0.0"
+```
+
+#### Conversion
+
+IPv4 and IPv6 can be converted bidirectionally to and from network byte order (MSB) byte arrays.
+
+The `fromByteArray()` method will take an array and create an appropriate IPv4 or IPv6 object
+if the input satisfies the requirements. For IPv4 it has to be an array of four 8-bit values,
+while for IPv6 it has to be an array of sixteen 8-bit values.
+
+For example:
+```js
+var addr = ipaddr.fromByteArray([0x7f, 0, 0, 1]);
+addr.toString(); // => "127.0.0.1"
+```
+
+or
+
+```js
+var addr = ipaddr.fromByteArray([0x20, 1, 0xd, 0xb8, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1])
+addr.toString(); // => "2001:db8::1"
+```
+
+Both objects also offer a `toByteArray()` method, which returns an array in network byte order (MSB).
+
+For example:
+```js
+var addr = ipaddr.parse("127.0.0.1");
+addr.toByteArray(); // => [0x7f, 0, 0, 1]
+```
+
+or
+
+```js
+var addr = ipaddr.parse("2001:db8::1");
+addr.toByteArray(); // => [0x20, 1, 0xd, 0xb8, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1]
+```
diff --git a/backend/node_modules/ipaddr.js/ipaddr.min.js b/backend/node_modules/ipaddr.js/ipaddr.min.js
new file mode 100644
index 0000000..b54a7cc
--- /dev/null
+++ b/backend/node_modules/ipaddr.js/ipaddr.min.js
@@ -0,0 +1 @@
+(function(){var r,t,n,e,i,o,a,s;t={},s=this,"undefined"!=typeof module&&null!==module&&module.exports?module.exports=t:s.ipaddr=t,a=function(r,t,n,e){var i,o;if(r.length!==t.length)throw new Error("ipaddr: cannot match CIDR for objects with different lengths");for(i=0;e>0;){if((o=n-e)<0&&(o=0),r[i]>>o!=t[i]>>o)return!1;e-=n,i+=1}return!0},t.subnetMatch=function(r,t,n){var e,i,o,a,s;null==n&&(n="unicast");for(o in t)for(!(a=t[o])[0]||a[0]instanceof Array||(a=[a]),e=0,i=a.length;e<i;e++)if(s=a[e],r.kind()===s[0].kind()&&r.match.apply(r,s))return o;return n},t.IPv4=function(){function r(r){var t,n,e;if(4!==r.length)throw new Error("ipaddr: ipv4 octet count should be 4");for(t=0,n=r.length;t<n;t++)if(!(0<=(e=r[t])&&e<=255))throw new Error("ipaddr: ipv4 octet should fit in 8 bits");this.octets=r}return r.prototype.kind=function(){return"ipv4"},r.prototype.toString=function(){return this.octets.join(".")},r.prototype.toNormalizedString=function(){return this.toString()},r.prototype.toByteArray=function(){return this.octets.slice(0)},r.prototype.match=function(r,t){var n;if(void 0===t&&(r=(n=r)[0],t=n[1]),"ipv4"!==r.kind())throw new Error("ipaddr: cannot match ipv4 address with non-ipv4 one");return a(this.octets,r.octets,8,t)},r.prototype.SpecialRanges={unspecified:[[new r([0,0,0,0]),8]],broadcast:[[new r([255,255,255,255]),32]],multicast:[[new r([224,0,0,0]),4]],linkLocal:[[new r([169,254,0,0]),16]],loopback:[[new r([127,0,0,0]),8]],carrierGradeNat:[[new r([100,64,0,0]),10]],private:[[new r([10,0,0,0]),8],[new r([172,16,0,0]),12],[new r([192,168,0,0]),16]],reserved:[[new r([192,0,0,0]),24],[new r([192,0,2,0]),24],[new r([192,88,99,0]),24],[new r([198,51,100,0]),24],[new r([203,0,113,0]),24],[new r([240,0,0,0]),4]]},r.prototype.range=function(){return t.subnetMatch(this,this.SpecialRanges)},r.prototype.toIPv4MappedAddress=function(){return t.IPv6.parse("::ffff:"+this.toString())},r.prototype.prefixLengthFromSubnetMask=function(){var r,t,n,e,i,o,a;for(a={0:8,128:7,192:6,224:5,240:4,248:3,252:2,254:1,255:0},r=0,i=!1,t=n=3;n>=0;t=n+=-1){if(!((e=this.octets[t])in a))return null;if(o=a[e],i&&0!==o)return null;8!==o&&(i=!0),r+=o}return 32-r},r}(),n="(0?\\d+|0x[a-f0-9]+)",e={fourOctet:new RegExp("^"+n+"\\."+n+"\\."+n+"\\."+n+"$","i"),longValue:new RegExp("^"+n+"$","i")},t.IPv4.parser=function(r){var t,n,i,o,a;if(n=function(r){return"0"===r[0]&&"x"!==r[1]?parseInt(r,8):parseInt(r)},t=r.match(e.fourOctet))return function(){var r,e,o,a;for(a=[],r=0,e=(o=t.slice(1,6)).length;r<e;r++)i=o[r],a.push(n(i));return a}();if(t=r.match(e.longValue)){if((a=n(t[1]))>4294967295||a<0)throw new Error("ipaddr: address outside defined range");return function(){var r,t;for(t=[],o=r=0;r<=24;o=r+=8)t.push(a>>o&255);return t}().reverse()}return null},t.IPv6=function(){function r(r,t){var n,e,i,o,a,s;if(16===r.length)for(this.parts=[],n=e=0;e<=14;n=e+=2)this.parts.push(r[n]<<8|r[n+1]);else{if(8!==r.length)throw new Error("ipaddr: ipv6 part count should be 8 or 16");this.parts=r}for(i=0,o=(s=this.parts).length;i<o;i++)if(!(0<=(a=s[i])&&a<=65535))throw new Error("ipaddr: ipv6 part should fit in 16 bits");t&&(this.zoneId=t)}return r.prototype.kind=function(){return"ipv6"},r.prototype.toString=function(){return this.toNormalizedString().replace(/((^|:)(0(:|$))+)/,"::")},r.prototype.toRFC5952String=function(){var r,t,n,e,i;for(e=/((^|:)(0(:|$)){2,})/g,i=this.toNormalizedString(),r=0,t=-1;n=e.exec(i);)n[0].length>t&&(r=n.index,t=n[0].length);return t<0?i:i.substring(0,r)+"::"+i.substring(r+t)},r.prototype.toByteArray=function(){var r,t,n,e,i;for(r=[],t=0,n=(i=this.parts).length;t<n;t++)e=i[t],r.push(e>>8),r.push(255&e);return r},r.prototype.toNormalizedString=function(){var r,t,n;return r=function(){var r,n,e,i;for(i=[],r=0,n=(e=this.parts).length;r<n;r++)t=e[r],i.push(t.toString(16));return i}.call(this).join(":"),n="",this.zoneId&&(n="%"+this.zoneId),r+n},r.prototype.toFixedLengthString=function(){var r,t,n;return r=function(){var r,n,e,i;for(i=[],r=0,n=(e=this.parts).length;r<n;r++)t=e[r],i.push(t.toString(16).padStart(4,"0"));return i}.call(this).join(":"),n="",this.zoneId&&(n="%"+this.zoneId),r+n},r.prototype.match=function(r,t){var n;if(void 0===t&&(r=(n=r)[0],t=n[1]),"ipv6"!==r.kind())throw new Error("ipaddr: cannot match ipv6 address with non-ipv6 one");return a(this.parts,r.parts,16,t)},r.prototype.SpecialRanges={unspecified:[new r([0,0,0,0,0,0,0,0]),128],linkLocal:[new r([65152,0,0,0,0,0,0,0]),10],multicast:[new r([65280,0,0,0,0,0,0,0]),8],loopback:[new r([0,0,0,0,0,0,0,1]),128],uniqueLocal:[new r([64512,0,0,0,0,0,0,0]),7],ipv4Mapped:[new r([0,0,0,0,0,65535,0,0]),96],rfc6145:[new r([0,0,0,0,65535,0,0,0]),96],rfc6052:[new r([100,65435,0,0,0,0,0,0]),96],"6to4":[new r([8194,0,0,0,0,0,0,0]),16],teredo:[new r([8193,0,0,0,0,0,0,0]),32],reserved:[[new r([8193,3512,0,0,0,0,0,0]),32]]},r.prototype.range=function(){return t.subnetMatch(this,this.SpecialRanges)},r.prototype.isIPv4MappedAddress=function(){return"ipv4Mapped"===this.range()},r.prototype.toIPv4Address=function(){var r,n,e;if(!this.isIPv4MappedAddress())throw new Error("ipaddr: trying to convert a generic ipv6 address to ipv4");return e=this.parts.slice(-2),r=e[0],n=e[1],new t.IPv4([r>>8,255&r,n>>8,255&n])},r.prototype.prefixLengthFromSubnetMask=function(){var r,t,n,e,i,o,a;for(a={0:16,32768:15,49152:14,57344:13,61440:12,63488:11,64512:10,65024:9,65280:8,65408:7,65472:6,65504:5,65520:4,65528:3,65532:2,65534:1,65535:0},r=0,i=!1,t=n=7;n>=0;t=n+=-1){if(!((e=this.parts[t])in a))return null;if(o=a[e],i&&0!==o)return null;16!==o&&(i=!0),r+=o}return 128-r},r}(),i="(?:[0-9a-f]+::?)+",o={zoneIndex:new RegExp("%[0-9a-z]{1,}","i"),native:new RegExp("^(::)?("+i+")?([0-9a-f]+)?(::)?(%[0-9a-z]{1,})?$","i"),transitional:new RegExp("^((?:"+i+")|(?:::)(?:"+i+")?)"+n+"\\."+n+"\\."+n+"\\."+n+"(%[0-9a-z]{1,})?$","i")},r=function(r,t){var n,e,i,a,s,p;if(r.indexOf("::")!==r.lastIndexOf("::"))return null;for((p=(r.match(o.zoneIndex)||[])[0])&&(p=p.substring(1),r=r.replace(/%.+$/,"")),n=0,e=-1;(e=r.indexOf(":",e+1))>=0;)n++;if("::"===r.substr(0,2)&&n--,"::"===r.substr(-2,2)&&n--,n>t)return null;for(s=t-n,a=":";s--;)a+="0:";return":"===(r=r.replace("::",a))[0]&&(r=r.slice(1)),":"===r[r.length-1]&&(r=r.slice(0,-1)),t=function(){var t,n,e,o;for(o=[],t=0,n=(e=r.split(":")).length;t<n;t++)i=e[t],o.push(parseInt(i,16));return o}(),{parts:t,zoneId:p}},t.IPv6.parser=function(t){var n,e,i,a,s,p,u;if(o.native.test(t))return r(t,8);if((a=t.match(o.transitional))&&(u=a[6]||"",(n=r(a[1].slice(0,-1)+u,6)).parts)){for(e=0,i=(p=[parseInt(a[2]),parseInt(a[3]),parseInt(a[4]),parseInt(a[5])]).length;e<i;e++)if(!(0<=(s=p[e])&&s<=255))return null;return n.parts.push(p[0]<<8|p[1]),n.parts.push(p[2]<<8|p[3]),{parts:n.parts,zoneId:n.zoneId}}return null},t.IPv4.isIPv4=t.IPv6.isIPv6=function(r){return null!==this.parser(r)},t.IPv4.isValid=function(r){try{return new this(this.parser(r)),!0}catch(r){return r,!1}},t.IPv4.isValidFourPartDecimal=function(r){return!(!t.IPv4.isValid(r)||!r.match(/^(0|[1-9]\d*)(\.(0|[1-9]\d*)){3}$/))},t.IPv6.isValid=function(r){var t;if("string"==typeof r&&-1===r.indexOf(":"))return!1;try{return t=this.parser(r),new this(t.parts,t.zoneId),!0}catch(r){return r,!1}},t.IPv4.parse=function(r){var t;if(null===(t=this.parser(r)))throw new Error("ipaddr: string is not formatted like ip address");return new this(t)},t.IPv6.parse=function(r){var t;if(null===(t=this.parser(r)).parts)throw new Error("ipaddr: string is not formatted like ip address");return new this(t.parts,t.zoneId)},t.IPv4.parseCIDR=function(r){var t,n,e;if((n=r.match(/^(.+)\/(\d+)$/))&&(t=parseInt(n[2]))>=0&&t<=32)return e=[this.parse(n[1]),t],Object.defineProperty(e,"toString",{value:function(){return this.join("/")}}),e;throw new Error("ipaddr: string is not formatted like an IPv4 CIDR range")},t.IPv4.subnetMaskFromPrefixLength=function(r){var t,n,e;if((r=parseInt(r))<0||r>32)throw new Error("ipaddr: invalid IPv4 prefix length");for(e=[0,0,0,0],n=0,t=Math.floor(r/8);n<t;)e[n]=255,n++;return t<4&&(e[t]=Math.pow(2,r%8)-1<<8-r%8),new this(e)},t.IPv4.broadcastAddressFromCIDR=function(r){var t,n,e,i,o;try{for(e=(t=this.parseCIDR(r))[0].toByteArray(),o=this.subnetMaskFromPrefixLength(t[1]).toByteArray(),i=[],n=0;n<4;)i.push(parseInt(e[n],10)|255^parseInt(o[n],10)),n++;return new this(i)}catch(r){throw r,new Error("ipaddr: the address does not have IPv4 CIDR format")}},t.IPv4.networkAddressFromCIDR=function(r){var t,n,e,i,o;try{for(e=(t=this.parseCIDR(r))[0].toByteArray(),o=this.subnetMaskFromPrefixLength(t[1]).toByteArray(),i=[],n=0;n<4;)i.push(parseInt(e[n],10)&parseInt(o[n],10)),n++;return new this(i)}catch(r){throw r,new Error("ipaddr: the address does not have IPv4 CIDR format")}},t.IPv6.parseCIDR=function(r){var t,n,e;if((n=r.match(/^(.+)\/(\d+)$/))&&(t=parseInt(n[2]))>=0&&t<=128)return e=[this.parse(n[1]),t],Object.defineProperty(e,"toString",{value:function(){return this.join("/")}}),e;throw new Error("ipaddr: string is not formatted like an IPv6 CIDR range")},t.isValid=function(r){return t.IPv6.isValid(r)||t.IPv4.isValid(r)},t.parse=function(r){if(t.IPv6.isValid(r))return t.IPv6.parse(r);if(t.IPv4.isValid(r))return t.IPv4.parse(r);throw new Error("ipaddr: the address has neither IPv6 nor IPv4 format")},t.parseCIDR=function(r){try{return t.IPv6.parseCIDR(r)}catch(n){n;try{return t.IPv4.parseCIDR(r)}catch(r){throw r,new Error("ipaddr: the address has neither IPv6 nor IPv4 CIDR format")}}},t.fromByteArray=function(r){var n;if(4===(n=r.length))return new t.IPv4(r);if(16===n)return new t.IPv6(r);throw new Error("ipaddr: the binary input is neither an IPv6 nor IPv4 address")},t.process=function(r){var t;return t=this.parse(r),"ipv6"===t.kind()&&t.isIPv4MappedAddress()?t.toIPv4Address():t}}).call(this);
\ No newline at end of file
diff --git a/backend/node_modules/ipaddr.js/lib/ipaddr.js b/backend/node_modules/ipaddr.js/lib/ipaddr.js
new file mode 100644
index 0000000..18bd93b
--- /dev/null
+++ b/backend/node_modules/ipaddr.js/lib/ipaddr.js
@@ -0,0 +1,673 @@
+(function() {
+  var expandIPv6, ipaddr, ipv4Part, ipv4Regexes, ipv6Part, ipv6Regexes, matchCIDR, root, zoneIndex;
+
+  ipaddr = {};
+
+  root = this;
+
+  if ((typeof module !== "undefined" && module !== null) && module.exports) {
+    module.exports = ipaddr;
+  } else {
+    root['ipaddr'] = ipaddr;
+  }
+
+  matchCIDR = function(first, second, partSize, cidrBits) {
+    var part, shift;
+    if (first.length !== second.length) {
+      throw new Error("ipaddr: cannot match CIDR for objects with different lengths");
+    }
+    part = 0;
+    while (cidrBits > 0) {
+      shift = partSize - cidrBits;
+      if (shift < 0) {
+        shift = 0;
+      }
+      if (first[part] >> shift !== second[part] >> shift) {
+        return false;
+      }
+      cidrBits -= partSize;
+      part += 1;
+    }
+    return true;
+  };
+
+  ipaddr.subnetMatch = function(address, rangeList, defaultName) {
+    var k, len, rangeName, rangeSubnets, subnet;
+    if (defaultName == null) {
+      defaultName = 'unicast';
+    }
+    for (rangeName in rangeList) {
+      rangeSubnets = rangeList[rangeName];
+      if (rangeSubnets[0] && !(rangeSubnets[0] instanceof Array)) {
+        rangeSubnets = [rangeSubnets];
+      }
+      for (k = 0, len = rangeSubnets.length; k < len; k++) {
+        subnet = rangeSubnets[k];
+        if (address.kind() === subnet[0].kind()) {
+          if (address.match.apply(address, subnet)) {
+            return rangeName;
+          }
+        }
+      }
+    }
+    return defaultName;
+  };
+
+  ipaddr.IPv4 = (function() {
+    function IPv4(octets) {
+      var k, len, octet;
+      if (octets.length !== 4) {
+        throw new Error("ipaddr: ipv4 octet count should be 4");
+      }
+      for (k = 0, len = octets.length; k < len; k++) {
+        octet = octets[k];
+        if (!((0 <= octet && octet <= 255))) {
+          throw new Error("ipaddr: ipv4 octet should fit in 8 bits");
+        }
+      }
+      this.octets = octets;
+    }
+
+    IPv4.prototype.kind = function() {
+      return 'ipv4';
+    };
+
+    IPv4.prototype.toString = function() {
+      return this.octets.join(".");
+    };
+
+    IPv4.prototype.toNormalizedString = function() {
+      return this.toString();
+    };
+
+    IPv4.prototype.toByteArray = function() {
+      return this.octets.slice(0);
+    };
+
+    IPv4.prototype.match = function(other, cidrRange) {
+      var ref;
+      if (cidrRange === void 0) {
+        ref = other, other = ref[0], cidrRange = ref[1];
+      }
+      if (other.kind() !== 'ipv4') {
+        throw new Error("ipaddr: cannot match ipv4 address with non-ipv4 one");
+      }
+      return matchCIDR(this.octets, other.octets, 8, cidrRange);
+    };
+
+    IPv4.prototype.SpecialRanges = {
+      unspecified: [[new IPv4([0, 0, 0, 0]), 8]],
+      broadcast: [[new IPv4([255, 255, 255, 255]), 32]],
+      multicast: [[new IPv4([224, 0, 0, 0]), 4]],
+      linkLocal: [[new IPv4([169, 254, 0, 0]), 16]],
+      loopback: [[new IPv4([127, 0, 0, 0]), 8]],
+      carrierGradeNat: [[new IPv4([100, 64, 0, 0]), 10]],
+      "private": [[new IPv4([10, 0, 0, 0]), 8], [new IPv4([172, 16, 0, 0]), 12], [new IPv4([192, 168, 0, 0]), 16]],
+      reserved: [[new IPv4([192, 0, 0, 0]), 24], [new IPv4([192, 0, 2, 0]), 24], [new IPv4([192, 88, 99, 0]), 24], [new IPv4([198, 51, 100, 0]), 24], [new IPv4([203, 0, 113, 0]), 24], [new IPv4([240, 0, 0, 0]), 4]]
+    };
+
+    IPv4.prototype.range = function() {
+      return ipaddr.subnetMatch(this, this.SpecialRanges);
+    };
+
+    IPv4.prototype.toIPv4MappedAddress = function() {
+      return ipaddr.IPv6.parse("::ffff:" + (this.toString()));
+    };
+
+    IPv4.prototype.prefixLengthFromSubnetMask = function() {
+      var cidr, i, k, octet, stop, zeros, zerotable;
+      zerotable = {
+        0: 8,
+        128: 7,
+        192: 6,
+        224: 5,
+        240: 4,
+        248: 3,
+        252: 2,
+        254: 1,
+        255: 0
+      };
+      cidr = 0;
+      stop = false;
+      for (i = k = 3; k >= 0; i = k += -1) {
+        octet = this.octets[i];
+        if (octet in zerotable) {
+          zeros = zerotable[octet];
+          if (stop && zeros !== 0) {
+            return null;
+          }
+          if (zeros !== 8) {
+            stop = true;
+          }
+          cidr += zeros;
+        } else {
+          return null;
+        }
+      }
+      return 32 - cidr;
+    };
+
+    return IPv4;
+
+  })();
+
+  ipv4Part = "(0?\\d+|0x[a-f0-9]+)";
+
+  ipv4Regexes = {
+    fourOctet: new RegExp("^" + ipv4Part + "\\." + ipv4Part + "\\." + ipv4Part + "\\." + ipv4Part + "$", 'i'),
+    longValue: new RegExp("^" + ipv4Part + "$", 'i')
+  };
+
+  ipaddr.IPv4.parser = function(string) {
+    var match, parseIntAuto, part, shift, value;
+    parseIntAuto = function(string) {
+      if (string[0] === "0" && string[1] !== "x") {
+        return parseInt(string, 8);
+      } else {
+        return parseInt(string);
+      }
+    };
+    if (match = string.match(ipv4Regexes.fourOctet)) {
+      return (function() {
+        var k, len, ref, results;
+        ref = match.slice(1, 6);
+        results = [];
+        for (k = 0, len = ref.length; k < len; k++) {
+          part = ref[k];
+          results.push(parseIntAuto(part));
+        }
+        return results;
+      })();
+    } else if (match = string.match(ipv4Regexes.longValue)) {
+      value = parseIntAuto(match[1]);
+      if (value > 0xffffffff || value < 0) {
+        throw new Error("ipaddr: address outside defined range");
+      }
+      return ((function() {
+        var k, results;
+        results = [];
+        for (shift = k = 0; k <= 24; shift = k += 8) {
+          results.push((value >> shift) & 0xff);
+        }
+        return results;
+      })()).reverse();
+    } else {
+      return null;
+    }
+  };
+
+  ipaddr.IPv6 = (function() {
+    function IPv6(parts, zoneId) {
+      var i, k, l, len, part, ref;
+      if (parts.length === 16) {
+        this.parts = [];
+        for (i = k = 0; k <= 14; i = k += 2) {
+          this.parts.push((parts[i] << 8) | parts[i + 1]);
+        }
+      } else if (parts.length === 8) {
+        this.parts = parts;
+      } else {
+        throw new Error("ipaddr: ipv6 part count should be 8 or 16");
+      }
+      ref = this.parts;
+      for (l = 0, len = ref.length; l < len; l++) {
+        part = ref[l];
+        if (!((0 <= part && part <= 0xffff))) {
+          throw new Error("ipaddr: ipv6 part should fit in 16 bits");
+        }
+      }
+      if (zoneId) {
+        this.zoneId = zoneId;
+      }
+    }
+
+    IPv6.prototype.kind = function() {
+      return 'ipv6';
+    };
+
+    IPv6.prototype.toString = function() {
+      return this.toNormalizedString().replace(/((^|:)(0(:|$))+)/, '::');
+    };
+
+    IPv6.prototype.toRFC5952String = function() {
+      var bestMatchIndex, bestMatchLength, match, regex, string;
+      regex = /((^|:)(0(:|$)){2,})/g;
+      string = this.toNormalizedString();
+      bestMatchIndex = 0;
+      bestMatchLength = -1;
+      while ((match = regex.exec(string))) {
+        if (match[0].length > bestMatchLength) {
+          bestMatchIndex = match.index;
+          bestMatchLength = match[0].length;
+        }
+      }
+      if (bestMatchLength < 0) {
+        return string;
+      }
+      return string.substring(0, bestMatchIndex) + '::' + string.substring(bestMatchIndex + bestMatchLength);
+    };
+
+    IPv6.prototype.toByteArray = function() {
+      var bytes, k, len, part, ref;
+      bytes = [];
+      ref = this.parts;
+      for (k = 0, len = ref.length; k < len; k++) {
+        part = ref[k];
+        bytes.push(part >> 8);
+        bytes.push(part & 0xff);
+      }
+      return bytes;
+    };
+
+    IPv6.prototype.toNormalizedString = function() {
+      var addr, part, suffix;
+      addr = ((function() {
+        var k, len, ref, results;
+        ref = this.parts;
+        results = [];
+        for (k = 0, len = ref.length; k < len; k++) {
+          part = ref[k];
+          results.push(part.toString(16));
+        }
+        return results;
+      }).call(this)).join(":");
+      suffix = '';
+      if (this.zoneId) {
+        suffix = '%' + this.zoneId;
+      }
+      return addr + suffix;
+    };
+
+    IPv6.prototype.toFixedLengthString = function() {
+      var addr, part, suffix;
+      addr = ((function() {
+        var k, len, ref, results;
+        ref = this.parts;
+        results = [];
+        for (k = 0, len = ref.length; k < len; k++) {
+          part = ref[k];
+          results.push(part.toString(16).padStart(4, '0'));
+        }
+        return results;
+      }).call(this)).join(":");
+      suffix = '';
+      if (this.zoneId) {
+        suffix = '%' + this.zoneId;
+      }
+      return addr + suffix;
+    };
+
+    IPv6.prototype.match = function(other, cidrRange) {
+      var ref;
+      if (cidrRange === void 0) {
+        ref = other, other = ref[0], cidrRange = ref[1];
+      }
+      if (other.kind() !== 'ipv6') {
+        throw new Error("ipaddr: cannot match ipv6 address with non-ipv6 one");
+      }
+      return matchCIDR(this.parts, other.parts, 16, cidrRange);
+    };
+
+    IPv6.prototype.SpecialRanges = {
+      unspecified: [new IPv6([0, 0, 0, 0, 0, 0, 0, 0]), 128],
+      linkLocal: [new IPv6([0xfe80, 0, 0, 0, 0, 0, 0, 0]), 10],
+      multicast: [new IPv6([0xff00, 0, 0, 0, 0, 0, 0, 0]), 8],
+      loopback: [new IPv6([0, 0, 0, 0, 0, 0, 0, 1]), 128],
+      uniqueLocal: [new IPv6([0xfc00, 0, 0, 0, 0, 0, 0, 0]), 7],
+      ipv4Mapped: [new IPv6([0, 0, 0, 0, 0, 0xffff, 0, 0]), 96],
+      rfc6145: [new IPv6([0, 0, 0, 0, 0xffff, 0, 0, 0]), 96],
+      rfc6052: [new IPv6([0x64, 0xff9b, 0, 0, 0, 0, 0, 0]), 96],
+      '6to4': [new IPv6([0x2002, 0, 0, 0, 0, 0, 0, 0]), 16],
+      teredo: [new IPv6([0x2001, 0, 0, 0, 0, 0, 0, 0]), 32],
+      reserved: [[new IPv6([0x2001, 0xdb8, 0, 0, 0, 0, 0, 0]), 32]]
+    };
+
+    IPv6.prototype.range = function() {
+      return ipaddr.subnetMatch(this, this.SpecialRanges);
+    };
+
+    IPv6.prototype.isIPv4MappedAddress = function() {
+      return this.range() === 'ipv4Mapped';
+    };
+
+    IPv6.prototype.toIPv4Address = function() {
+      var high, low, ref;
+      if (!this.isIPv4MappedAddress()) {
+        throw new Error("ipaddr: trying to convert a generic ipv6 address to ipv4");
+      }
+      ref = this.parts.slice(-2), high = ref[0], low = ref[1];
+      return new ipaddr.IPv4([high >> 8, high & 0xff, low >> 8, low & 0xff]);
+    };
+
+    IPv6.prototype.prefixLengthFromSubnetMask = function() {
+      var cidr, i, k, part, stop, zeros, zerotable;
+      zerotable = {
+        0: 16,
+        32768: 15,
+        49152: 14,
+        57344: 13,
+        61440: 12,
+        63488: 11,
+        64512: 10,
+        65024: 9,
+        65280: 8,
+        65408: 7,
+        65472: 6,
+        65504: 5,
+        65520: 4,
+        65528: 3,
+        65532: 2,
+        65534: 1,
+        65535: 0
+      };
+      cidr = 0;
+      stop = false;
+      for (i = k = 7; k >= 0; i = k += -1) {
+        part = this.parts[i];
+        if (part in zerotable) {
+          zeros = zerotable[part];
+          if (stop && zeros !== 0) {
+            return null;
+          }
+          if (zeros !== 16) {
+            stop = true;
+          }
+          cidr += zeros;
+        } else {
+          return null;
+        }
+      }
+      return 128 - cidr;
+    };
+
+    return IPv6;
+
+  })();
+
+  ipv6Part = "(?:[0-9a-f]+::?)+";
+
+  zoneIndex = "%[0-9a-z]{1,}";
+
+  ipv6Regexes = {
+    zoneIndex: new RegExp(zoneIndex, 'i'),
+    "native": new RegExp("^(::)?(" + ipv6Part + ")?([0-9a-f]+)?(::)?(" + zoneIndex + ")?$", 'i'),
+    transitional: new RegExp(("^((?:" + ipv6Part + ")|(?:::)(?:" + ipv6Part + ")?)") + (ipv4Part + "\\." + ipv4Part + "\\." + ipv4Part + "\\." + ipv4Part) + ("(" + zoneIndex + ")?$"), 'i')
+  };
+
+  expandIPv6 = function(string, parts) {
+    var colonCount, lastColon, part, replacement, replacementCount, zoneId;
+    if (string.indexOf('::') !== string.lastIndexOf('::')) {
+      return null;
+    }
+    zoneId = (string.match(ipv6Regexes['zoneIndex']) || [])[0];
+    if (zoneId) {
+      zoneId = zoneId.substring(1);
+      string = string.replace(/%.+$/, '');
+    }
+    colonCount = 0;
+    lastColon = -1;
+    while ((lastColon = string.indexOf(':', lastColon + 1)) >= 0) {
+      colonCount++;
+    }
+    if (string.substr(0, 2) === '::') {
+      colonCount--;
+    }
+    if (string.substr(-2, 2) === '::') {
+      colonCount--;
+    }
+    if (colonCount > parts) {
+      return null;
+    }
+    replacementCount = parts - colonCount;
+    replacement = ':';
+    while (replacementCount--) {
+      replacement += '0:';
+    }
+    string = string.replace('::', replacement);
+    if (string[0] === ':') {
+      string = string.slice(1);
+    }
+    if (string[string.length - 1] === ':') {
+      string = string.slice(0, -1);
+    }
+    parts = (function() {
+      var k, len, ref, results;
+      ref = string.split(":");
+      results = [];
+      for (k = 0, len = ref.length; k < len; k++) {
+        part = ref[k];
+        results.push(parseInt(part, 16));
+      }
+      return results;
+    })();
+    return {
+      parts: parts,
+      zoneId: zoneId
+    };
+  };
+
+  ipaddr.IPv6.parser = function(string) {
+    var addr, k, len, match, octet, octets, zoneId;
+    if (ipv6Regexes['native'].test(string)) {
+      return expandIPv6(string, 8);
+    } else if (match = string.match(ipv6Regexes['transitional'])) {
+      zoneId = match[6] || '';
+      addr = expandIPv6(match[1].slice(0, -1) + zoneId, 6);
+      if (addr.parts) {
+        octets = [parseInt(match[2]), parseInt(match[3]), parseInt(match[4]), parseInt(match[5])];
+        for (k = 0, len = octets.length; k < len; k++) {
+          octet = octets[k];
+          if (!((0 <= octet && octet <= 255))) {
+            return null;
+          }
+        }
+        addr.parts.push(octets[0] << 8 | octets[1]);
+        addr.parts.push(octets[2] << 8 | octets[3]);
+        return {
+          parts: addr.parts,
+          zoneId: addr.zoneId
+        };
+      }
+    }
+    return null;
+  };
+
+  ipaddr.IPv4.isIPv4 = ipaddr.IPv6.isIPv6 = function(string) {
+    return this.parser(string) !== null;
+  };
+
+  ipaddr.IPv4.isValid = function(string) {
+    var e;
+    try {
+      new this(this.parser(string));
+      return true;
+    } catch (error1) {
+      e = error1;
+      return false;
+    }
+  };
+
+  ipaddr.IPv4.isValidFourPartDecimal = function(string) {
+    if (ipaddr.IPv4.isValid(string) && string.match(/^(0|[1-9]\d*)(\.(0|[1-9]\d*)){3}$/)) {
+      return true;
+    } else {
+      return false;
+    }
+  };
+
+  ipaddr.IPv6.isValid = function(string) {
+    var addr, e;
+    if (typeof string === "string" && string.indexOf(":") === -1) {
+      return false;
+    }
+    try {
+      addr = this.parser(string);
+      new this(addr.parts, addr.zoneId);
+      return true;
+    } catch (error1) {
+      e = error1;
+      return false;
+    }
+  };
+
+  ipaddr.IPv4.parse = function(string) {
+    var parts;
+    parts = this.parser(string);
+    if (parts === null) {
+      throw new Error("ipaddr: string is not formatted like ip address");
+    }
+    return new this(parts);
+  };
+
+  ipaddr.IPv6.parse = function(string) {
+    var addr;
+    addr = this.parser(string);
+    if (addr.parts === null) {
+      throw new Error("ipaddr: string is not formatted like ip address");
+    }
+    return new this(addr.parts, addr.zoneId);
+  };
+
+  ipaddr.IPv4.parseCIDR = function(string) {
+    var maskLength, match, parsed;
+    if (match = string.match(/^(.+)\/(\d+)$/)) {
+      maskLength = parseInt(match[2]);
+      if (maskLength >= 0 && maskLength <= 32) {
+        parsed = [this.parse(match[1]), maskLength];
+        Object.defineProperty(parsed, 'toString', {
+          value: function() {
+            return this.join('/');
+          }
+        });
+        return parsed;
+      }
+    }
+    throw new Error("ipaddr: string is not formatted like an IPv4 CIDR range");
+  };
+
+  ipaddr.IPv4.subnetMaskFromPrefixLength = function(prefix) {
+    var filledOctetCount, j, octets;
+    prefix = parseInt(prefix);
+    if (prefix < 0 || prefix > 32) {
+      throw new Error('ipaddr: invalid IPv4 prefix length');
+    }
+    octets = [0, 0, 0, 0];
+    j = 0;
+    filledOctetCount = Math.floor(prefix / 8);
+    while (j < filledOctetCount) {
+      octets[j] = 255;
+      j++;
+    }
+    if (filledOctetCount < 4) {
+      octets[filledOctetCount] = Math.pow(2, prefix % 8) - 1 << 8 - (prefix % 8);
+    }
+    return new this(octets);
+  };
+
+  ipaddr.IPv4.broadcastAddressFromCIDR = function(string) {
+    var cidr, error, i, ipInterfaceOctets, octets, subnetMaskOctets;
+    try {
+      cidr = this.parseCIDR(string);
+      ipInterfaceOctets = cidr[0].toByteArray();
+      subnetMaskOctets = this.subnetMaskFromPrefixLength(cidr[1]).toByteArray();
+      octets = [];
+      i = 0;
+      while (i < 4) {
+        octets.push(parseInt(ipInterfaceOctets[i], 10) | parseInt(subnetMaskOctets[i], 10) ^ 255);
+        i++;
+      }
+      return new this(octets);
+    } catch (error1) {
+      error = error1;
+      throw new Error('ipaddr: the address does not have IPv4 CIDR format');
+    }
+  };
+
+  ipaddr.IPv4.networkAddressFromCIDR = function(string) {
+    var cidr, error, i, ipInterfaceOctets, octets, subnetMaskOctets;
+    try {
+      cidr = this.parseCIDR(string);
+      ipInterfaceOctets = cidr[0].toByteArray();
+      subnetMaskOctets = this.subnetMaskFromPrefixLength(cidr[1]).toByteArray();
+      octets = [];
+      i = 0;
+      while (i < 4) {
+        octets.push(parseInt(ipInterfaceOctets[i], 10) & parseInt(subnetMaskOctets[i], 10));
+        i++;
+      }
+      return new this(octets);
+    } catch (error1) {
+      error = error1;
+      throw new Error('ipaddr: the address does not have IPv4 CIDR format');
+    }
+  };
+
+  ipaddr.IPv6.parseCIDR = function(string) {
+    var maskLength, match, parsed;
+    if (match = string.match(/^(.+)\/(\d+)$/)) {
+      maskLength = parseInt(match[2]);
+      if (maskLength >= 0 && maskLength <= 128) {
+        parsed = [this.parse(match[1]), maskLength];
+        Object.defineProperty(parsed, 'toString', {
+          value: function() {
+            return this.join('/');
+          }
+        });
+        return parsed;
+      }
+    }
+    throw new Error("ipaddr: string is not formatted like an IPv6 CIDR range");
+  };
+
+  ipaddr.isValid = function(string) {
+    return ipaddr.IPv6.isValid(string) || ipaddr.IPv4.isValid(string);
+  };
+
+  ipaddr.parse = function(string) {
+    if (ipaddr.IPv6.isValid(string)) {
+      return ipaddr.IPv6.parse(string);
+    } else if (ipaddr.IPv4.isValid(string)) {
+      return ipaddr.IPv4.parse(string);
+    } else {
+      throw new Error("ipaddr: the address has neither IPv6 nor IPv4 format");
+    }
+  };
+
+  ipaddr.parseCIDR = function(string) {
+    var e;
+    try {
+      return ipaddr.IPv6.parseCIDR(string);
+    } catch (error1) {
+      e = error1;
+      try {
+        return ipaddr.IPv4.parseCIDR(string);
+      } catch (error1) {
+        e = error1;
+        throw new Error("ipaddr: the address has neither IPv6 nor IPv4 CIDR format");
+      }
+    }
+  };
+
+  ipaddr.fromByteArray = function(bytes) {
+    var length;
+    length = bytes.length;
+    if (length === 4) {
+      return new ipaddr.IPv4(bytes);
+    } else if (length === 16) {
+      return new ipaddr.IPv6(bytes);
+    } else {
+      throw new Error("ipaddr: the binary input is neither an IPv6 nor IPv4 address");
+    }
+  };
+
+  ipaddr.process = function(string) {
+    var addr;
+    addr = this.parse(string);
+    if (addr.kind() === 'ipv6' && addr.isIPv4MappedAddress()) {
+      return addr.toIPv4Address();
+    } else {
+      return addr;
+    }
+  };
+
+}).call(this);
diff --git a/backend/node_modules/ipaddr.js/lib/ipaddr.js.d.ts b/backend/node_modules/ipaddr.js/lib/ipaddr.js.d.ts
new file mode 100644
index 0000000..52174b6
--- /dev/null
+++ b/backend/node_modules/ipaddr.js/lib/ipaddr.js.d.ts
@@ -0,0 +1,68 @@
+declare module "ipaddr.js" {
+    type IPv4Range = 'unicast' | 'unspecified' | 'broadcast' | 'multicast' | 'linkLocal' | 'loopback' | 'carrierGradeNat' | 'private' | 'reserved';
+    type IPv6Range = 'unicast' | 'unspecified' | 'linkLocal' | 'multicast' | 'loopback' | 'uniqueLocal' | 'ipv4Mapped' | 'rfc6145' | 'rfc6052' | '6to4' | 'teredo' | 'reserved';
+
+    interface RangeList<T> {
+        [name: string]: [T, number] | [T, number][];
+    }
+
+    // Common methods/properties for IPv4 and IPv6 classes.
+    class IP {
+        prefixLengthFromSubnetMask(): number | null;
+        toByteArray(): number[];
+        toNormalizedString(): string;
+        toString(): string;
+    }
+
+    namespace Address {
+        export function isValid(addr: string): boolean;
+        export function fromByteArray(bytes: number[]): IPv4 | IPv6;
+        export function parse(addr: string): IPv4 | IPv6;
+        export function parseCIDR(mask: string): [IPv4 | IPv6, number];
+        export function process(addr: string): IPv4 | IPv6;
+        export function subnetMatch(addr: IPv4, rangeList: RangeList<IPv4>, defaultName?: string): string;
+        export function subnetMatch(addr: IPv6, rangeList: RangeList<IPv6>, defaultName?: string): string;
+
+        export class IPv4 extends IP {
+            static broadcastAddressFromCIDR(addr: string): IPv4;
+            static isIPv4(addr: string): boolean;
+            static isValidFourPartDecimal(addr: string): boolean;
+            static isValid(addr: string): boolean;
+            static networkAddressFromCIDR(addr: string): IPv4;
+            static parse(addr: string): IPv4;
+            static parseCIDR(addr: string): [IPv4, number];
+            static subnetMaskFromPrefixLength(prefix: number): IPv4;
+            constructor(octets: number[]);
+            octets: number[]
+
+            kind(): 'ipv4';
+            match(addr: IPv4, bits: number): boolean;
+            match(mask: [IPv4, number]): boolean;
+            range(): IPv4Range;
+            subnetMatch(rangeList: RangeList<IPv4>, defaultName?: string): string;
+            toIPv4MappedAddress(): IPv6;
+        }
+
+        export class IPv6 extends IP {
+            static broadcastAddressFromCIDR(addr: string): IPv6;
+            static isIPv6(addr: string): boolean;
+            static isValid(addr: string): boolean;
+            static parse(addr: string): IPv6;
+            static parseCIDR(addr: string): [IPv6, number];
+            static subnetMaskFromPrefixLength(prefix: number): IPv6;
+            constructor(parts: number[]);
+            parts: number[]
+            zoneId?: string
+
+            isIPv4MappedAddress(): boolean;
+            kind(): 'ipv6';
+            match(addr: IPv6, bits: number): boolean;
+            match(mask: [IPv6, number]): boolean;
+            range(): IPv6Range;
+            subnetMatch(rangeList: RangeList<IPv6>, defaultName?: string): string;
+            toIPv4Address(): IPv4;
+        }
+    }
+
+    export = Address;
+}
diff --git a/backend/node_modules/ipaddr.js/package.json b/backend/node_modules/ipaddr.js/package.json
new file mode 100644
index 0000000..f4d3547
--- /dev/null
+++ b/backend/node_modules/ipaddr.js/package.json
@@ -0,0 +1,35 @@
+{
+  "name": "ipaddr.js",
+  "description": "A library for manipulating IPv4 and IPv6 addresses in JavaScript.",
+  "version": "1.9.1",
+  "author": "whitequark <whitequark@whitequark.org>",
+  "directories": {
+    "lib": "./lib"
+  },
+  "dependencies": {},
+  "devDependencies": {
+    "coffee-script": "~1.12.6",
+    "nodeunit": "^0.11.3",
+    "uglify-js": "~3.0.19"
+  },
+  "scripts": {
+    "test": "cake build test"
+  },
+  "files": [
+    "lib/",
+    "LICENSE",
+    "ipaddr.min.js"
+  ],
+  "keywords": [
+    "ip",
+    "ipv4",
+    "ipv6"
+  ],
+  "repository": "git://github.com/whitequark/ipaddr.js",
+  "main": "./lib/ipaddr.js",
+  "engines": {
+    "node": ">= 0.10"
+  },
+  "license": "MIT",
+  "types": "./lib/ipaddr.js.d.ts"
+}
diff --git a/backend/node_modules/is-promise/LICENSE b/backend/node_modules/is-promise/LICENSE
new file mode 100644
index 0000000..27cc9f3
--- /dev/null
+++ b/backend/node_modules/is-promise/LICENSE
@@ -0,0 +1,19 @@
+Copyright (c) 2014 Forbes Lindesay
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
\ No newline at end of file
diff --git a/backend/node_modules/is-promise/index.d.ts b/backend/node_modules/is-promise/index.d.ts
new file mode 100644
index 0000000..2107b42
--- /dev/null
+++ b/backend/node_modules/is-promise/index.d.ts
@@ -0,0 +1,2 @@
+declare function isPromise<T, S>(obj: PromiseLike<T> | S): obj is PromiseLike<T>;
+export default isPromise;
diff --git a/backend/node_modules/is-promise/index.js b/backend/node_modules/is-promise/index.js
new file mode 100644
index 0000000..1bed087
--- /dev/null
+++ b/backend/node_modules/is-promise/index.js
@@ -0,0 +1,6 @@
+module.exports = isPromise;
+module.exports.default = isPromise;
+
+function isPromise(obj) {
+  return !!obj && (typeof obj === 'object' || typeof obj === 'function') && typeof obj.then === 'function';
+}
diff --git a/backend/node_modules/is-promise/index.mjs b/backend/node_modules/is-promise/index.mjs
new file mode 100644
index 0000000..bf9e99b
--- /dev/null
+++ b/backend/node_modules/is-promise/index.mjs
@@ -0,0 +1,3 @@
+export default function isPromise(obj) {
+  return !!obj && (typeof obj === 'object' || typeof obj === 'function') && typeof obj.then === 'function';
+}
diff --git a/backend/node_modules/is-promise/package.json b/backend/node_modules/is-promise/package.json
new file mode 100644
index 0000000..2a3c540
--- /dev/null
+++ b/backend/node_modules/is-promise/package.json
@@ -0,0 +1,30 @@
+{
+  "name": "is-promise",
+  "version": "4.0.0",
+  "description": "Test whether an object looks like a promises-a+ promise",
+  "main": "./index.js",
+  "scripts": {
+    "test": "node test"
+  },
+  "files": [
+    "index.js",
+    "index.mjs",
+    "index.d.ts"
+  ],
+  "exports": {
+    ".": [
+      {
+        "import": "./index.mjs",
+        "require": "./index.js",
+        "default": "./index.js"
+      },
+      "./index.js"
+    ]
+  },
+  "repository": {
+    "type": "git",
+    "url": "https://github.com/then/is-promise.git"
+  },
+  "author": "ForbesLindesay",
+  "license": "MIT"
+}
diff --git a/backend/node_modules/is-promise/readme.md b/backend/node_modules/is-promise/readme.md
new file mode 100644
index 0000000..d53d34b
--- /dev/null
+++ b/backend/node_modules/is-promise/readme.md
@@ -0,0 +1,33 @@
+<a href="https://promisesaplus.com/"><img src="https://promisesaplus.com/assets/logo-small.png" align="right" /></a>
+
+# is-promise
+
+  Test whether an object looks like a promises-a+ promise
+
+ [![Build Status](https://img.shields.io/travis/then/is-promise/master.svg)](https://travis-ci.org/then/is-promise)
+ [![Dependency Status](https://img.shields.io/david/then/is-promise.svg)](https://david-dm.org/then/is-promise)
+ [![NPM version](https://img.shields.io/npm/v/is-promise.svg)](https://www.npmjs.org/package/is-promise)
+
+
+
+## Installation
+
+    $ npm install is-promise
+
+You can also use it client side via npm.
+
+## API
+
+```typescript
+import isPromise from 'is-promise';
+
+isPromise(Promise.resolve());//=>true
+isPromise({then:function () {...}});//=>true
+isPromise(null);//=>false
+isPromise({});//=>false
+isPromise({then: true})//=>false
+```
+
+## License
+
+  MIT
diff --git a/backend/node_modules/math-intrinsics/.eslintrc b/backend/node_modules/math-intrinsics/.eslintrc
new file mode 100644
index 0000000..d90a1bc
--- /dev/null
+++ b/backend/node_modules/math-intrinsics/.eslintrc
@@ -0,0 +1,16 @@
+{
+	"root": true,
+
+	"extends": "@ljharb",
+
+	"rules": {
+		"eqeqeq": ["error", "allow-null"],
+		"id-length": "off",
+		"new-cap": ["error", {
+			"capIsNewExceptions": [
+				"RequireObjectCoercible",
+				"ToObject",
+			],
+		}],
+	},
+}
diff --git a/backend/node_modules/math-intrinsics/.github/FUNDING.yml b/backend/node_modules/math-intrinsics/.github/FUNDING.yml
new file mode 100644
index 0000000..868f4ff
--- /dev/null
+++ b/backend/node_modules/math-intrinsics/.github/FUNDING.yml
@@ -0,0 +1,12 @@
+# These are supported funding model platforms
+
+github: [ljharb]
+patreon: # Replace with a single Patreon username
+open_collective: # Replace with a single Open Collective username
+ko_fi: # Replace with a single Ko-fi username
+tidelift: npm/math-intrinsics
+community_bridge: # Replace with a single Community Bridge project-name e.g., cloud-foundry
+liberapay: # Replace with a single Liberapay username
+issuehunt: # Replace with a single IssueHunt username
+otechie: # Replace with a single Otechie username
+custom: # Replace with a single custom sponsorship URL
diff --git a/backend/node_modules/math-intrinsics/CHANGELOG.md b/backend/node_modules/math-intrinsics/CHANGELOG.md
new file mode 100644
index 0000000..9cf48f5
--- /dev/null
+++ b/backend/node_modules/math-intrinsics/CHANGELOG.md
@@ -0,0 +1,24 @@
+# Changelog
+
+All notable changes to this project will be documented in this file.
+
+The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/)
+and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
+
+## [v1.1.0](https://github.com/es-shims/math-intrinsics/compare/v1.0.0...v1.1.0) - 2024-12-18
+
+### Commits
+
+- [New] add `round` [`7cfb044`](https://github.com/es-shims/math-intrinsics/commit/7cfb04460c0fbdf1ca101eecbac3f59d11994130)
+- [Tests] add attw [`e96be8f`](https://github.com/es-shims/math-intrinsics/commit/e96be8fbf58449eafe976446a0470e6ea561ad8d)
+- [Dev Deps] update `@types/tape` [`30d0023`](https://github.com/es-shims/math-intrinsics/commit/30d00234ce8a3fa0094a61cd55d6686eb91e36ec)
+
+## v1.0.0 - 2024-12-11
+
+### Commits
+
+- Initial implementation, tests, readme, types [`b898caa`](https://github.com/es-shims/math-intrinsics/commit/b898caae94e9994a94a42b8740f7bbcfd0a868fe)
+- Initial commit [`02745b0`](https://github.com/es-shims/math-intrinsics/commit/02745b03a62255af8a332771987b55d127538d9c)
+- [New] add `constants/maxArrayLength`, `mod` [`b978178`](https://github.com/es-shims/math-intrinsics/commit/b978178a57685bd23ed1c7efe2137f3784f5fcc5)
+- npm init [`a39fc57`](https://github.com/es-shims/math-intrinsics/commit/a39fc57e5639a645d0bd52a0dc56202480223be2)
+- Only apps should have lockfiles [`9451580`](https://github.com/es-shims/math-intrinsics/commit/94515800fb34db4f3cc7e99290042d45609ac7bd)
diff --git a/backend/node_modules/math-intrinsics/LICENSE b/backend/node_modules/math-intrinsics/LICENSE
new file mode 100644
index 0000000..34995e7
--- /dev/null
+++ b/backend/node_modules/math-intrinsics/LICENSE
@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2024 ECMAScript Shims
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
diff --git a/backend/node_modules/math-intrinsics/README.md b/backend/node_modules/math-intrinsics/README.md
new file mode 100644
index 0000000..4a66dcf
--- /dev/null
+++ b/backend/node_modules/math-intrinsics/README.md
@@ -0,0 +1,50 @@
+# math-intrinsics <sup>[![Version Badge][npm-version-svg]][package-url]</sup>
+
+[![github actions][actions-image]][actions-url]
+[![coverage][codecov-image]][codecov-url]
+[![License][license-image]][license-url]
+[![Downloads][downloads-image]][downloads-url]
+
+[![npm badge][npm-badge-png]][package-url]
+
+ES Math-related intrinsics and helpers, robustly cached.
+
+ - `abs`
+ - `floor`
+ - `isFinite`
+ - `isInteger`
+ - `isNaN`
+ - `isNegativeZero`
+ - `max`
+ - `min`
+ - `mod`
+ - `pow`
+ - `round`
+ - `sign`
+ - `constants/maxArrayLength`
+ - `constants/maxSafeInteger`
+ - `constants/maxValue`
+
+
+## Tests
+Simply clone the repo, `npm install`, and run `npm test`
+
+## Security
+
+Please email [@ljharb](https://github.com/ljharb) or see https://tidelift.com/security if you have a potential security vulnerability to report.
+
+[package-url]: https://npmjs.org/package/math-intrinsics
+[npm-version-svg]: https://versionbadg.es/es-shims/math-intrinsics.svg
+[deps-svg]: https://david-dm.org/es-shims/math-intrinsics.svg
+[deps-url]: https://david-dm.org/es-shims/math-intrinsics
+[dev-deps-svg]: https://david-dm.org/es-shims/math-intrinsics/dev-status.svg
+[dev-deps-url]: https://david-dm.org/es-shims/math-intrinsics#info=devDependencies
+[npm-badge-png]: https://nodei.co/npm/math-intrinsics.png?downloads=true&stars=true
+[license-image]: https://img.shields.io/npm/l/math-intrinsics.svg
+[license-url]: LICENSE
+[downloads-image]: https://img.shields.io/npm/dm/es-object.svg
+[downloads-url]: https://npm-stat.com/charts.html?package=math-intrinsics
+[codecov-image]: https://codecov.io/gh/es-shims/math-intrinsics/branch/main/graphs/badge.svg
+[codecov-url]: https://app.codecov.io/gh/es-shims/math-intrinsics/
+[actions-image]: https://img.shields.io/endpoint?url=https://github-actions-badge-u3jn4tfpocch.runkit.sh/es-shims/math-intrinsics
+[actions-url]: https://github.com/es-shims/math-intrinsics/actions
diff --git a/backend/node_modules/math-intrinsics/abs.d.ts b/backend/node_modules/math-intrinsics/abs.d.ts
new file mode 100644
index 0000000..14ad9c6
--- /dev/null
+++ b/backend/node_modules/math-intrinsics/abs.d.ts
@@ -0,0 +1 @@
+export = Math.abs;
\ No newline at end of file
diff --git a/backend/node_modules/math-intrinsics/abs.js b/backend/node_modules/math-intrinsics/abs.js
new file mode 100644
index 0000000..a751424
--- /dev/null
+++ b/backend/node_modules/math-intrinsics/abs.js
@@ -0,0 +1,4 @@
+'use strict';
+
+/** @type {import('./abs')} */
+module.exports = Math.abs;
diff --git a/backend/node_modules/math-intrinsics/constants/maxArrayLength.d.ts b/backend/node_modules/math-intrinsics/constants/maxArrayLength.d.ts
new file mode 100644
index 0000000..b92d46b
--- /dev/null
+++ b/backend/node_modules/math-intrinsics/constants/maxArrayLength.d.ts
@@ -0,0 +1,3 @@
+declare const MAX_ARRAY_LENGTH: 4294967295;
+
+export = MAX_ARRAY_LENGTH;
\ No newline at end of file
diff --git a/backend/node_modules/math-intrinsics/constants/maxArrayLength.js b/backend/node_modules/math-intrinsics/constants/maxArrayLength.js
new file mode 100644
index 0000000..cfc6aff
--- /dev/null
+++ b/backend/node_modules/math-intrinsics/constants/maxArrayLength.js
@@ -0,0 +1,4 @@
+'use strict';
+
+/** @type {import('./maxArrayLength')} */
+module.exports = 4294967295; // Math.pow(2, 32) - 1;
diff --git a/backend/node_modules/math-intrinsics/constants/maxSafeInteger.d.ts b/backend/node_modules/math-intrinsics/constants/maxSafeInteger.d.ts
new file mode 100644
index 0000000..fee3f62
--- /dev/null
+++ b/backend/node_modules/math-intrinsics/constants/maxSafeInteger.d.ts
@@ -0,0 +1,3 @@
+declare const MAX_SAFE_INTEGER: 9007199254740991;
+
+export = MAX_SAFE_INTEGER;
\ No newline at end of file
diff --git a/backend/node_modules/math-intrinsics/constants/maxSafeInteger.js b/backend/node_modules/math-intrinsics/constants/maxSafeInteger.js
new file mode 100644
index 0000000..b568ad3
--- /dev/null
+++ b/backend/node_modules/math-intrinsics/constants/maxSafeInteger.js
@@ -0,0 +1,5 @@
+'use strict';
+
+/** @type {import('./maxSafeInteger')} */
+// eslint-disable-next-line no-extra-parens
+module.exports = /** @type {import('./maxSafeInteger')} */ (Number.MAX_SAFE_INTEGER) || 9007199254740991; // Math.pow(2, 53) - 1;
diff --git a/backend/node_modules/math-intrinsics/constants/maxValue.d.ts b/backend/node_modules/math-intrinsics/constants/maxValue.d.ts
new file mode 100644
index 0000000..292cb82
--- /dev/null
+++ b/backend/node_modules/math-intrinsics/constants/maxValue.d.ts
@@ -0,0 +1,3 @@
+declare const MAX_VALUE: 1.7976931348623157e+308;
+
+export = MAX_VALUE;
diff --git a/backend/node_modules/math-intrinsics/constants/maxValue.js b/backend/node_modules/math-intrinsics/constants/maxValue.js
new file mode 100644
index 0000000..a2202dc
--- /dev/null
+++ b/backend/node_modules/math-intrinsics/constants/maxValue.js
@@ -0,0 +1,5 @@
+'use strict';
+
+/** @type {import('./maxValue')}  */
+// eslint-disable-next-line no-extra-parens
+module.exports = /** @type {import('./maxValue')}  */ (Number.MAX_VALUE) || 1.7976931348623157e+308;
diff --git a/backend/node_modules/math-intrinsics/floor.d.ts b/backend/node_modules/math-intrinsics/floor.d.ts
new file mode 100644
index 0000000..9265236
--- /dev/null
+++ b/backend/node_modules/math-intrinsics/floor.d.ts
@@ -0,0 +1 @@
+export = Math.floor;
\ No newline at end of file
diff --git a/backend/node_modules/math-intrinsics/floor.js b/backend/node_modules/math-intrinsics/floor.js
new file mode 100644
index 0000000..ab0e5d7
--- /dev/null
+++ b/backend/node_modules/math-intrinsics/floor.js
@@ -0,0 +1,4 @@
+'use strict';
+
+/** @type {import('./floor')} */
+module.exports = Math.floor;
diff --git a/backend/node_modules/math-intrinsics/isFinite.d.ts b/backend/node_modules/math-intrinsics/isFinite.d.ts
new file mode 100644
index 0000000..6daae33
--- /dev/null
+++ b/backend/node_modules/math-intrinsics/isFinite.d.ts
@@ -0,0 +1,3 @@
+declare function isFinite(x: unknown): x is number | bigint;
+
+export = isFinite;
\ No newline at end of file
diff --git a/backend/node_modules/math-intrinsics/isFinite.js b/backend/node_modules/math-intrinsics/isFinite.js
new file mode 100644
index 0000000..b201a5a
--- /dev/null
+++ b/backend/node_modules/math-intrinsics/isFinite.js
@@ -0,0 +1,12 @@
+'use strict';
+
+var $isNaN = require('./isNaN');
+
+/** @type {import('./isFinite')} */
+module.exports = function isFinite(x) {
+	return (typeof x === 'number' || typeof x === 'bigint')
+        && !$isNaN(x)
+        && x !== Infinity
+        && x !== -Infinity;
+};
+
diff --git a/backend/node_modules/math-intrinsics/isInteger.d.ts b/backend/node_modules/math-intrinsics/isInteger.d.ts
new file mode 100644
index 0000000..13935a8
--- /dev/null
+++ b/backend/node_modules/math-intrinsics/isInteger.d.ts
@@ -0,0 +1,3 @@
+declare function isInteger(argument: unknown): argument is number;
+
+export = isInteger;
\ No newline at end of file
diff --git a/backend/node_modules/math-intrinsics/isInteger.js b/backend/node_modules/math-intrinsics/isInteger.js
new file mode 100644
index 0000000..4b1b9a5
--- /dev/null
+++ b/backend/node_modules/math-intrinsics/isInteger.js
@@ -0,0 +1,16 @@
+'use strict';
+
+var $abs = require('./abs');
+var $floor = require('./floor');
+
+var $isNaN = require('./isNaN');
+var $isFinite = require('./isFinite');
+
+/** @type {import('./isInteger')} */
+module.exports = function isInteger(argument) {
+	if (typeof argument !== 'number' || $isNaN(argument) || !$isFinite(argument)) {
+		return false;
+	}
+	var absValue = $abs(argument);
+	return $floor(absValue) === absValue;
+};
diff --git a/backend/node_modules/math-intrinsics/isNaN.d.ts b/backend/node_modules/math-intrinsics/isNaN.d.ts
new file mode 100644
index 0000000..c1d4c55
--- /dev/null
+++ b/backend/node_modules/math-intrinsics/isNaN.d.ts
@@ -0,0 +1 @@
+export = Number.isNaN;
\ No newline at end of file
diff --git a/backend/node_modules/math-intrinsics/isNaN.js b/backend/node_modules/math-intrinsics/isNaN.js
new file mode 100644
index 0000000..e36475c
--- /dev/null
+++ b/backend/node_modules/math-intrinsics/isNaN.js
@@ -0,0 +1,6 @@
+'use strict';
+
+/** @type {import('./isNaN')} */
+module.exports = Number.isNaN || function isNaN(a) {
+	return a !== a;
+};
diff --git a/backend/node_modules/math-intrinsics/isNegativeZero.d.ts b/backend/node_modules/math-intrinsics/isNegativeZero.d.ts
new file mode 100644
index 0000000..7ad8819
--- /dev/null
+++ b/backend/node_modules/math-intrinsics/isNegativeZero.d.ts
@@ -0,0 +1,3 @@
+declare function isNegativeZero(x: unknown): boolean;
+
+export = isNegativeZero;
\ No newline at end of file
diff --git a/backend/node_modules/math-intrinsics/isNegativeZero.js b/backend/node_modules/math-intrinsics/isNegativeZero.js
new file mode 100644
index 0000000..b69adcc
--- /dev/null
+++ b/backend/node_modules/math-intrinsics/isNegativeZero.js
@@ -0,0 +1,6 @@
+'use strict';
+
+/** @type {import('./isNegativeZero')} */
+module.exports = function isNegativeZero(x) {
+	return x === 0 && 1 / x === 1 / -0;
+};
diff --git a/backend/node_modules/math-intrinsics/max.d.ts b/backend/node_modules/math-intrinsics/max.d.ts
new file mode 100644
index 0000000..ad6f43e
--- /dev/null
+++ b/backend/node_modules/math-intrinsics/max.d.ts
@@ -0,0 +1 @@
+export = Math.max;
\ No newline at end of file
diff --git a/backend/node_modules/math-intrinsics/max.js b/backend/node_modules/math-intrinsics/max.js
new file mode 100644
index 0000000..edb55df
--- /dev/null
+++ b/backend/node_modules/math-intrinsics/max.js
@@ -0,0 +1,4 @@
+'use strict';
+
+/** @type {import('./max')} */
+module.exports = Math.max;
diff --git a/backend/node_modules/math-intrinsics/min.d.ts b/backend/node_modules/math-intrinsics/min.d.ts
new file mode 100644
index 0000000..fd90f2d
--- /dev/null
+++ b/backend/node_modules/math-intrinsics/min.d.ts
@@ -0,0 +1 @@
+export = Math.min;
\ No newline at end of file
diff --git a/backend/node_modules/math-intrinsics/min.js b/backend/node_modules/math-intrinsics/min.js
new file mode 100644
index 0000000..5a4a7c7
--- /dev/null
+++ b/backend/node_modules/math-intrinsics/min.js
@@ -0,0 +1,4 @@
+'use strict';
+
+/** @type {import('./min')} */
+module.exports = Math.min;
diff --git a/backend/node_modules/math-intrinsics/mod.d.ts b/backend/node_modules/math-intrinsics/mod.d.ts
new file mode 100644
index 0000000..549dbd4
--- /dev/null
+++ b/backend/node_modules/math-intrinsics/mod.d.ts
@@ -0,0 +1,3 @@
+declare function mod(number: number, modulo: number): number;
+
+export = mod;
\ No newline at end of file
diff --git a/backend/node_modules/math-intrinsics/mod.js b/backend/node_modules/math-intrinsics/mod.js
new file mode 100644
index 0000000..4a98362
--- /dev/null
+++ b/backend/node_modules/math-intrinsics/mod.js
@@ -0,0 +1,9 @@
+'use strict';
+
+var $floor = require('./floor');
+
+/** @type {import('./mod')} */
+module.exports = function mod(number, modulo) {
+	var remain = number % modulo;
+	return $floor(remain >= 0 ? remain : remain + modulo);
+};
diff --git a/backend/node_modules/math-intrinsics/package.json b/backend/node_modules/math-intrinsics/package.json
new file mode 100644
index 0000000..0676273
--- /dev/null
+++ b/backend/node_modules/math-intrinsics/package.json
@@ -0,0 +1,86 @@
+{
+	"name": "math-intrinsics",
+	"version": "1.1.0",
+	"description": "ES Math-related intrinsics and helpers, robustly cached.",
+	"main": false,
+	"exports": {
+		"./abs": "./abs.js",
+		"./floor": "./floor.js",
+		"./isFinite": "./isFinite.js",
+		"./isInteger": "./isInteger.js",
+		"./isNaN": "./isNaN.js",
+		"./isNegativeZero": "./isNegativeZero.js",
+		"./max": "./max.js",
+		"./min": "./min.js",
+		"./mod": "./mod.js",
+		"./pow": "./pow.js",
+		"./sign": "./sign.js",
+		"./round": "./round.js",
+		"./constants/maxArrayLength": "./constants/maxArrayLength.js",
+		"./constants/maxSafeInteger": "./constants/maxSafeInteger.js",
+		"./constants/maxValue": "./constants/maxValue.js",
+		"./package.json": "./package.json"
+	},
+	"sideEffects": false,
+	"scripts": {
+		"prepack": "npmignore --auto --commentLines=autogenerated",
+		"prepublishOnly": "safe-publish-latest",
+		"prepublish": "not-in-publish || npm run prepublishOnly",
+		"pretest": "npm run lint",
+		"test": "npm run tests-only",
+		"tests-only": "nyc tape 'test/**/*.js'",
+		"posttest": "npx npm@'>= 10.2' audit --production",
+		"prelint": "evalmd README.md && eclint check $(git ls-files | xargs find 2> /dev/null | grep -vE 'node_modules|\\.git' | grep -v dist/)",
+		"lint": "eslint --ext=js,mjs .",
+		"postlint": "tsc && attw -P",
+		"version": "auto-changelog && git add CHANGELOG.md",
+		"postversion": "auto-changelog && git add CHANGELOG.md && git commit --no-edit --amend && git tag -f \"v$(node -e \"console.log(require('./package.json').version)\")\""
+	},
+	"repository": {
+		"type": "git",
+		"url": "git+https://github.com/es-shims/math-intrinsics.git"
+	},
+	"author": "Jordan Harband <ljharb@gmail.com>",
+	"license": "MIT",
+	"bugs": {
+		"url": "https://github.com/es-shims/math-intrinsics/issues"
+	},
+	"homepage": "https://github.com/es-shims/math-intrinsics#readme",
+	"devDependencies": {
+		"@arethetypeswrong/cli": "^0.17.1",
+		"@ljharb/eslint-config": "^21.1.1",
+		"@ljharb/tsconfig": "^0.2.2",
+		"@types/for-each": "^0.3.3",
+		"@types/object-inspect": "^1.13.0",
+		"@types/tape": "^5.8.0",
+		"auto-changelog": "^2.5.0",
+		"eclint": "^2.8.1",
+		"es-value-fixtures": "^1.5.0",
+		"eslint": "^8.8.0",
+		"evalmd": "^0.0.19",
+		"for-each": "^0.3.3",
+		"in-publish": "^2.0.1",
+		"npmignore": "^0.3.1",
+		"nyc": "^10.3.2",
+		"object-inspect": "^1.13.3",
+		"safe-publish-latest": "^2.0.0",
+		"tape": "^5.9.0",
+		"typescript": "next"
+	},
+	"auto-changelog": {
+		"output": "CHANGELOG.md",
+		"template": "keepachangelog",
+		"unreleased": false,
+		"commitLimit": false,
+		"backfillLimit": false,
+		"hideCredit": true
+	},
+	"publishConfig": {
+		"ignore": [
+			".github/workflows"
+		]
+	},
+	"engines": {
+		"node": ">= 0.4"
+	}
+}
diff --git a/backend/node_modules/math-intrinsics/pow.d.ts b/backend/node_modules/math-intrinsics/pow.d.ts
new file mode 100644
index 0000000..5873c44
--- /dev/null
+++ b/backend/node_modules/math-intrinsics/pow.d.ts
@@ -0,0 +1 @@
+export = Math.pow;
\ No newline at end of file
diff --git a/backend/node_modules/math-intrinsics/pow.js b/backend/node_modules/math-intrinsics/pow.js
new file mode 100644
index 0000000..c0a4103
--- /dev/null
+++ b/backend/node_modules/math-intrinsics/pow.js
@@ -0,0 +1,4 @@
+'use strict';
+
+/** @type {import('./pow')} */
+module.exports = Math.pow;
diff --git a/backend/node_modules/math-intrinsics/round.d.ts b/backend/node_modules/math-intrinsics/round.d.ts
new file mode 100644
index 0000000..da1fde3
--- /dev/null
+++ b/backend/node_modules/math-intrinsics/round.d.ts
@@ -0,0 +1 @@
+export = Math.round;
\ No newline at end of file
diff --git a/backend/node_modules/math-intrinsics/round.js b/backend/node_modules/math-intrinsics/round.js
new file mode 100644
index 0000000..b792156
--- /dev/null
+++ b/backend/node_modules/math-intrinsics/round.js
@@ -0,0 +1,4 @@
+'use strict';
+
+/** @type {import('./round')} */
+module.exports = Math.round;
diff --git a/backend/node_modules/math-intrinsics/sign.d.ts b/backend/node_modules/math-intrinsics/sign.d.ts
new file mode 100644
index 0000000..c49ceca
--- /dev/null
+++ b/backend/node_modules/math-intrinsics/sign.d.ts
@@ -0,0 +1,3 @@
+declare function sign(x: number): number;
+
+export = sign;
\ No newline at end of file
diff --git a/backend/node_modules/math-intrinsics/sign.js b/backend/node_modules/math-intrinsics/sign.js
new file mode 100644
index 0000000..9e5173c
--- /dev/null
+++ b/backend/node_modules/math-intrinsics/sign.js
@@ -0,0 +1,11 @@
+'use strict';
+
+var $isNaN = require('./isNaN');
+
+/** @type {import('./sign')} */
+module.exports = function sign(number) {
+	if ($isNaN(number) || number === 0) {
+		return number;
+	}
+	return number < 0 ? -1 : +1;
+};
diff --git a/backend/node_modules/math-intrinsics/test/index.js b/backend/node_modules/math-intrinsics/test/index.js
new file mode 100644
index 0000000..0f90a5d
--- /dev/null
+++ b/backend/node_modules/math-intrinsics/test/index.js
@@ -0,0 +1,192 @@
+'use strict';
+
+var test = require('tape');
+var v = require('es-value-fixtures');
+var forEach = require('for-each');
+var inspect = require('object-inspect');
+
+var abs = require('../abs');
+var floor = require('../floor');
+var isFinite = require('../isFinite');
+var isInteger = require('../isInteger');
+var isNaN = require('../isNaN');
+var isNegativeZero = require('../isNegativeZero');
+var max = require('../max');
+var min = require('../min');
+var mod = require('../mod');
+var pow = require('../pow');
+var round = require('../round');
+var sign = require('../sign');
+
+var maxArrayLength = require('../constants/maxArrayLength');
+var maxSafeInteger = require('../constants/maxSafeInteger');
+var maxValue = require('../constants/maxValue');
+
+test('abs', function (t) {
+	t.equal(abs(-1), 1, 'abs(-1) === 1');
+	t.equal(abs(+1), 1, 'abs(+1) === 1');
+	t.equal(abs(+0), +0, 'abs(+0) === +0');
+	t.equal(abs(-0), +0, 'abs(-0) === +0');
+
+	t.end();
+});
+
+test('floor', function (t) {
+	t.equal(floor(-1.1), -2, 'floor(-1.1) === -2');
+	t.equal(floor(+1.1), 1, 'floor(+1.1) === 1');
+	t.equal(floor(+0), +0, 'floor(+0) === +0');
+	t.equal(floor(-0), -0, 'floor(-0) === -0');
+	t.equal(floor(-Infinity), -Infinity, 'floor(-Infinity) === -Infinity');
+	t.equal(floor(Number(Infinity)), Number(Infinity), 'floor(+Infinity) === +Infinity');
+	t.equal(floor(NaN), NaN, 'floor(NaN) === NaN');
+	t.equal(floor(0), +0, 'floor(0) === +0');
+	t.equal(floor(-0), -0, 'floor(-0) === -0');
+	t.equal(floor(1), 1, 'floor(1) === 1');
+	t.equal(floor(-1), -1, 'floor(-1) === -1');
+	t.equal(floor(1.1), 1, 'floor(1.1) === 1');
+	t.equal(floor(-1.1), -2, 'floor(-1.1) === -2');
+	t.equal(floor(maxValue), maxValue, 'floor(maxValue) === maxValue');
+	t.equal(floor(maxSafeInteger), maxSafeInteger, 'floor(maxSafeInteger) === maxSafeInteger');
+
+	t.end();
+});
+
+test('isFinite', function (t) {
+	t.equal(isFinite(0), true, 'isFinite(+0) === true');
+	t.equal(isFinite(-0), true, 'isFinite(-0) === true');
+	t.equal(isFinite(1), true, 'isFinite(1) === true');
+	t.equal(isFinite(Infinity), false, 'isFinite(Infinity) === false');
+	t.equal(isFinite(-Infinity), false, 'isFinite(-Infinity) === false');
+	t.equal(isFinite(NaN), false, 'isFinite(NaN) === false');
+
+	forEach(v.nonNumbers, function (nonNumber) {
+		t.equal(isFinite(nonNumber), false, 'isFinite(' + inspect(nonNumber) + ') === false');
+	});
+
+	t.end();
+});
+
+test('isInteger', function (t) {
+	forEach([].concat(
+		// @ts-expect-error TS sucks with concat
+		v.nonNumbers,
+		v.nonIntegerNumbers
+	), function (nonInteger) {
+		t.equal(isInteger(nonInteger), false, 'isInteger(' + inspect(nonInteger) + ') === false');
+	});
+
+	t.end();
+});
+
+test('isNaN', function (t) {
+	forEach([].concat(
+		// @ts-expect-error TS sucks with concat
+		v.nonNumbers,
+		v.infinities,
+		v.zeroes,
+		v.integerNumbers
+	), function (nonNaN) {
+		t.equal(isNaN(nonNaN), false, 'isNaN(' + inspect(nonNaN) + ') === false');
+	});
+
+	t.equal(isNaN(NaN), true, 'isNaN(NaN) === true');
+
+	t.end();
+});
+
+test('isNegativeZero', function (t) {
+	t.equal(isNegativeZero(-0), true, 'isNegativeZero(-0) === true');
+	t.equal(isNegativeZero(+0), false, 'isNegativeZero(+0) === false');
+	t.equal(isNegativeZero(1), false, 'isNegativeZero(1) === false');
+	t.equal(isNegativeZero(-1), false, 'isNegativeZero(-1) === false');
+	t.equal(isNegativeZero(NaN), false, 'isNegativeZero(NaN) === false');
+	t.equal(isNegativeZero(Infinity), false, 'isNegativeZero(Infinity) === false');
+	t.equal(isNegativeZero(-Infinity), false, 'isNegativeZero(-Infinity) === false');
+
+	forEach(v.nonNumbers, function (nonNumber) {
+		t.equal(isNegativeZero(nonNumber), false, 'isNegativeZero(' + inspect(nonNumber) + ') === false');
+	});
+
+	t.end();
+});
+
+test('max', function (t) {
+	t.equal(max(1, 2), 2, 'max(1, 2) === 2');
+	t.equal(max(1, 2, 3), 3, 'max(1, 2, 3) === 3');
+	t.equal(max(1, 2, 3, 4), 4, 'max(1, 2, 3, 4) === 4');
+	t.equal(max(1, 2, 3, 4, 5), 5, 'max(1, 2, 3, 4, 5) === 5');
+	t.equal(max(1, 2, 3, 4, 5, 6), 6, 'max(1, 2, 3, 4, 5, 6) === 6');
+	t.equal(max(1, 2, 3, 4, 5, 6, 7), 7, 'max(1, 2, 3, 4, 5, 6, 7) === 7');
+
+	t.end();
+});
+
+test('min', function (t) {
+	t.equal(min(1, 2), 1, 'min(1, 2) === 1');
+	t.equal(min(1, 2, 3), 1, 'min(1, 2, 3) === 1');
+	t.equal(min(1, 2, 3, 4), 1, 'min(1, 2, 3, 4) === 1');
+	t.equal(min(1, 2, 3, 4, 5), 1, 'min(1, 2, 3, 4, 5) === 1');
+	t.equal(min(1, 2, 3, 4, 5, 6), 1, 'min(1, 2, 3, 4, 5, 6) === 1');
+
+	t.end();
+});
+
+test('mod', function (t) {
+	t.equal(mod(1, 2), 1, 'mod(1, 2) === 1');
+	t.equal(mod(2, 2), 0, 'mod(2, 2) === 0');
+	t.equal(mod(3, 2), 1, 'mod(3, 2) === 1');
+	t.equal(mod(4, 2), 0, 'mod(4, 2) === 0');
+	t.equal(mod(5, 2), 1, 'mod(5, 2) === 1');
+	t.equal(mod(6, 2), 0, 'mod(6, 2) === 0');
+	t.equal(mod(7, 2), 1, 'mod(7, 2) === 1');
+	t.equal(mod(8, 2), 0, 'mod(8, 2) === 0');
+	t.equal(mod(9, 2), 1, 'mod(9, 2) === 1');
+	t.equal(mod(10, 2), 0, 'mod(10, 2) === 0');
+	t.equal(mod(11, 2), 1, 'mod(11, 2) === 1');
+
+	t.end();
+});
+
+test('pow', function (t) {
+	t.equal(pow(2, 2), 4, 'pow(2, 2) === 4');
+	t.equal(pow(2, 3), 8, 'pow(2, 3) === 8');
+	t.equal(pow(2, 4), 16, 'pow(2, 4) === 16');
+	t.equal(pow(2, 5), 32, 'pow(2, 5) === 32');
+	t.equal(pow(2, 6), 64, 'pow(2, 6) === 64');
+	t.equal(pow(2, 7), 128, 'pow(2, 7) === 128');
+	t.equal(pow(2, 8), 256, 'pow(2, 8) === 256');
+	t.equal(pow(2, 9), 512, 'pow(2, 9) === 512');
+	t.equal(pow(2, 10), 1024, 'pow(2, 10) === 1024');
+
+	t.end();
+});
+
+test('round', function (t) {
+	t.equal(round(1.1), 1, 'round(1.1) === 1');
+	t.equal(round(1.5), 2, 'round(1.5) === 2');
+	t.equal(round(1.9), 2, 'round(1.9) === 2');
+
+	t.end();
+});
+
+test('sign', function (t) {
+	t.equal(sign(-1), -1, 'sign(-1) === -1');
+	t.equal(sign(+1), +1, 'sign(+1) === +1');
+	t.equal(sign(+0), +0, 'sign(+0) === +0');
+	t.equal(sign(-0), -0, 'sign(-0) === -0');
+	t.equal(sign(NaN), NaN, 'sign(NaN) === NaN');
+	t.equal(sign(Infinity), +1, 'sign(Infinity) === +1');
+	t.equal(sign(-Infinity), -1, 'sign(-Infinity) === -1');
+	t.equal(sign(maxValue), +1, 'sign(maxValue) === +1');
+	t.equal(sign(maxSafeInteger), +1, 'sign(maxSafeInteger) === +1');
+
+	t.end();
+});
+
+test('constants', function (t) {
+	t.equal(typeof maxArrayLength, 'number', 'typeof maxArrayLength === "number"');
+	t.equal(typeof maxSafeInteger, 'number', 'typeof maxSafeInteger === "number"');
+	t.equal(typeof maxValue, 'number', 'typeof maxValue === "number"');
+
+	t.end();
+});
diff --git a/backend/node_modules/math-intrinsics/tsconfig.json b/backend/node_modules/math-intrinsics/tsconfig.json
new file mode 100644
index 0000000..b131000
--- /dev/null
+++ b/backend/node_modules/math-intrinsics/tsconfig.json
@@ -0,0 +1,3 @@
+{
+	"extends": "@ljharb/tsconfig",
+}
diff --git a/backend/node_modules/media-typer/HISTORY.md b/backend/node_modules/media-typer/HISTORY.md
new file mode 100644
index 0000000..538ade1
--- /dev/null
+++ b/backend/node_modules/media-typer/HISTORY.md
@@ -0,0 +1,50 @@
+1.1.0 / 2019-04-24
+==================
+
+  * Add `test(string)` function
+
+1.0.2 / 2019-04-19
+==================
+
+  * Fix JSDoc comment for `parse` function
+
+1.0.1 / 2018-10-20
+==================
+
+  * Remove left over `parameters` property from class
+
+1.0.0 / 2018-10-20
+==================
+
+This major release brings the module back to it's RFC 6838 roots. If you want
+a module to parse the `Content-Type` or similar HTTP headers, use the
+`content-type` module instead.
+
+  * Drop support for Node.js below 0.8
+  * Remove parameter handling, which is outside RFC 6838 scope
+  * Remove `parse(req)` and `parse(res)` signatures
+  * perf: enable strict mode
+  * perf: use a class for object creation
+
+0.3.0 / 2014-09-07
+==================
+
+  * Support Node.js 0.6
+  * Throw error when parameter format invalid on parse
+
+0.2.0 / 2014-06-18
+==================
+
+  * Add `typer.format()` to format media types
+
+0.1.0 / 2014-06-17
+==================
+
+  * Accept `req` as argument to `parse`
+  * Accept `res` as argument to `parse`
+  * Parse media type with extra LWS between type and first parameter
+
+0.0.0 / 2014-06-13
+==================
+
+  * Initial implementation
diff --git a/backend/node_modules/media-typer/LICENSE b/backend/node_modules/media-typer/LICENSE
new file mode 100644
index 0000000..84441fb
--- /dev/null
+++ b/backend/node_modules/media-typer/LICENSE
@@ -0,0 +1,22 @@
+(The MIT License)
+
+Copyright (c) 2014-2017 Douglas Christopher Wilson
+
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of this software and associated documentation files (the
+'Software'), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sublicense, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to
+the following conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
diff --git a/backend/node_modules/media-typer/README.md b/backend/node_modules/media-typer/README.md
new file mode 100644
index 0000000..37edad1
--- /dev/null
+++ b/backend/node_modules/media-typer/README.md
@@ -0,0 +1,93 @@
+# media-typer
+
+[![NPM Version][npm-version-image]][npm-url]
+[![NPM Downloads][npm-downloads-image]][npm-url]
+[![Node.js Version][node-version-image]][node-version-url]
+[![Build Status][travis-image]][travis-url]
+[![Test Coverage][coveralls-image]][coveralls-url]
+
+Simple RFC 6838 media type parser.
+
+This module will parse a given media type into it's component parts, like type,
+subtype, and suffix. A formatter is also provided to put them back together and
+the two can be combined to normalize media types into a canonical form.
+
+If you are looking to parse the string that represents a media type and it's
+parameters in HTTP (for example, the `Content-Type` header), use the
+[content-type module](https://www.npmjs.com/package/content-type).
+
+## Installation
+
+This is a [Node.js](https://nodejs.org/en/) module available through the
+[npm registry](https://www.npmjs.com/). Installation is done using the
+[`npm install` command](https://docs.npmjs.com/getting-started/installing-npm-packages-locally):
+
+```sh
+$ npm install media-typer
+```
+
+## API
+
+<!-- eslint-disable no-unused-vars -->
+
+```js
+var typer = require('media-typer')
+```
+
+### typer.parse(string)
+
+<!-- eslint-disable no-undef, no-unused-vars -->
+
+```js
+var obj = typer.parse('image/svg+xml')
+```
+
+Parse a media type string. This will return an object with the following
+properties (examples are shown for the string `'image/svg+xml; charset=utf-8'`):
+
+ - `type`: The type of the media type (always lower case). Example: `'image'`
+
+ - `subtype`: The subtype of the media type (always lower case). Example: `'svg'`
+
+ - `suffix`: The suffix of the media type (always lower case). Example: `'xml'`
+
+If the given type string is invalid, then a `TypeError` is thrown.
+
+### typer.format(obj)
+
+<!-- eslint-disable no-undef, no-unused-vars -->
+
+```js
+var obj = typer.format({ type: 'image', subtype: 'svg', suffix: 'xml' })
+```
+
+Format an object into a media type string. This will return a string of the
+mime type for the given object. For the properties of the object, see the
+documentation for `typer.parse(string)`.
+
+If any of the given object values are invalid, then a `TypeError` is thrown.
+
+### typer.test(string)
+
+<!-- eslint-disable no-undef, no-unused-vars -->
+
+```js
+var valid = typer.test('image/svg+xml')
+```
+
+Validate a media type string. This will return `true` is the string is a well-
+formatted media type, or `false` otherwise.
+
+## License
+
+[MIT](LICENSE)
+
+[coveralls-image]: https://badgen.net/coveralls/c/github/jshttp/media-typer/master
+[coveralls-url]: https://coveralls.io/r/jshttp/media-typer?branch=master
+[node-version-image]: https://badgen.net/npm/node/media-typer
+[node-version-url]: https://nodejs.org/en/download
+[npm-downloads-image]: https://badgen.net/npm/dm/media-typer
+[npm-url]: https://npmjs.org/package/media-typer
+[npm-version-image]: https://badgen.net/npm/v/media-typer
+[travis-image]: https://badgen.net/travis/jshttp/media-typer/master
+[travis-url]: https://travis-ci.org/jshttp/media-typer
diff --git a/backend/node_modules/media-typer/index.js b/backend/node_modules/media-typer/index.js
new file mode 100644
index 0000000..897cae1
--- /dev/null
+++ b/backend/node_modules/media-typer/index.js
@@ -0,0 +1,143 @@
+/*!
+ * media-typer
+ * Copyright(c) 2014-2017 Douglas Christopher Wilson
+ * MIT Licensed
+ */
+
+'use strict'
+
+/**
+ * RegExp to match type in RFC 6838
+ *
+ * type-name = restricted-name
+ * subtype-name = restricted-name
+ * restricted-name = restricted-name-first *126restricted-name-chars
+ * restricted-name-first  = ALPHA / DIGIT
+ * restricted-name-chars  = ALPHA / DIGIT / "!" / "#" /
+ *                          "$" / "&" / "-" / "^" / "_"
+ * restricted-name-chars =/ "." ; Characters before first dot always
+ *                              ; specify a facet name
+ * restricted-name-chars =/ "+" ; Characters after last plus always
+ *                              ; specify a structured syntax suffix
+ * ALPHA =  %x41-5A / %x61-7A   ; A-Z / a-z
+ * DIGIT =  %x30-39             ; 0-9
+ */
+var SUBTYPE_NAME_REGEXP = /^[A-Za-z0-9][A-Za-z0-9!#$&^_.-]{0,126}$/
+var TYPE_NAME_REGEXP = /^[A-Za-z0-9][A-Za-z0-9!#$&^_-]{0,126}$/
+var TYPE_REGEXP = /^ *([A-Za-z0-9][A-Za-z0-9!#$&^_-]{0,126})\/([A-Za-z0-9][A-Za-z0-9!#$&^_.+-]{0,126}) *$/
+
+/**
+ * Module exports.
+ */
+
+exports.format = format
+exports.parse = parse
+exports.test = test
+
+/**
+ * Format object to media type.
+ *
+ * @param {object} obj
+ * @return {string}
+ * @public
+ */
+
+function format (obj) {
+  if (!obj || typeof obj !== 'object') {
+    throw new TypeError('argument obj is required')
+  }
+
+  var subtype = obj.subtype
+  var suffix = obj.suffix
+  var type = obj.type
+
+  if (!type || !TYPE_NAME_REGEXP.test(type)) {
+    throw new TypeError('invalid type')
+  }
+
+  if (!subtype || !SUBTYPE_NAME_REGEXP.test(subtype)) {
+    throw new TypeError('invalid subtype')
+  }
+
+  // format as type/subtype
+  var string = type + '/' + subtype
+
+  // append +suffix
+  if (suffix) {
+    if (!TYPE_NAME_REGEXP.test(suffix)) {
+      throw new TypeError('invalid suffix')
+    }
+
+    string += '+' + suffix
+  }
+
+  return string
+}
+
+/**
+ * Test media type.
+ *
+ * @param {string} string
+ * @return {object}
+ * @public
+ */
+
+function test (string) {
+  if (!string) {
+    throw new TypeError('argument string is required')
+  }
+
+  if (typeof string !== 'string') {
+    throw new TypeError('argument string is required to be a string')
+  }
+
+  return TYPE_REGEXP.test(string.toLowerCase())
+}
+
+/**
+ * Parse media type to object.
+ *
+ * @param {string} string
+ * @return {object}
+ * @public
+ */
+
+function parse (string) {
+  if (!string) {
+    throw new TypeError('argument string is required')
+  }
+
+  if (typeof string !== 'string') {
+    throw new TypeError('argument string is required to be a string')
+  }
+
+  var match = TYPE_REGEXP.exec(string.toLowerCase())
+
+  if (!match) {
+    throw new TypeError('invalid media type')
+  }
+
+  var type = match[1]
+  var subtype = match[2]
+  var suffix
+
+  // suffix after last +
+  var index = subtype.lastIndexOf('+')
+  if (index !== -1) {
+    suffix = subtype.substr(index + 1)
+    subtype = subtype.substr(0, index)
+  }
+
+  return new MediaType(type, subtype, suffix)
+}
+
+/**
+ * Class for MediaType object.
+ * @public
+ */
+
+function MediaType (type, subtype, suffix) {
+  this.type = type
+  this.subtype = subtype
+  this.suffix = suffix
+}
diff --git a/backend/node_modules/media-typer/package.json b/backend/node_modules/media-typer/package.json
new file mode 100644
index 0000000..1dca712
--- /dev/null
+++ b/backend/node_modules/media-typer/package.json
@@ -0,0 +1,33 @@
+{
+  "name": "media-typer",
+  "description": "Simple RFC 6838 media type parser and formatter",
+  "version": "1.1.0",
+  "author": "Douglas Christopher Wilson <doug@somethingdoug.com>",
+  "license": "MIT",
+  "repository": "jshttp/media-typer",
+  "devDependencies": {
+    "eslint": "5.16.0",
+    "eslint-config-standard": "12.0.0",
+    "eslint-plugin-import": "2.17.2",
+    "eslint-plugin-markdown": "1.0.0",
+    "eslint-plugin-node": "8.0.1",
+    "eslint-plugin-promise": "4.1.1",
+    "eslint-plugin-standard": "4.0.0",
+    "mocha": "6.1.4",
+    "nyc": "14.0.0"
+  },
+  "files": [
+    "LICENSE",
+    "HISTORY.md",
+    "index.js"
+  ],
+  "engines": {
+    "node": ">= 0.8"
+  },
+  "scripts": {
+    "lint": "eslint --plugin markdown --ext js,md .",
+    "test": "mocha --reporter spec --check-leaks --bail test/",
+    "test-cov": "nyc --reporter=html --reporter=text npm test",
+    "test-travis": "nyc --reporter=text npm test"
+  }
+}
diff --git a/backend/node_modules/merge-descriptors/index.d.ts b/backend/node_modules/merge-descriptors/index.d.ts
new file mode 100644
index 0000000..df8f91f
--- /dev/null
+++ b/backend/node_modules/merge-descriptors/index.d.ts
@@ -0,0 +1,11 @@
+/**
+Merges "own" properties from a source to a destination object, including non-enumerable and accessor-defined properties. It retains original values and descriptors, ensuring the destination receives a complete and accurate copy of the source's properties.
+
+@param destination - The object to receive properties.
+@param source - The object providing properties.
+@param overwrite - Optional boolean to control overwriting of existing properties. Defaults to true.
+@returns The modified destination object.
+*/
+declare function mergeDescriptors<T, U>(destination: T, source: U, overwrite?: boolean): T & U;
+
+export = mergeDescriptors;
diff --git a/backend/node_modules/merge-descriptors/index.js b/backend/node_modules/merge-descriptors/index.js
new file mode 100644
index 0000000..51228e5
--- /dev/null
+++ b/backend/node_modules/merge-descriptors/index.js
@@ -0,0 +1,26 @@
+'use strict';
+
+function mergeDescriptors(destination, source, overwrite = true) {
+	if (!destination) {
+		throw new TypeError('The `destination` argument is required.');
+	}
+
+	if (!source) {
+		throw new TypeError('The `source` argument is required.');
+	}
+
+	for (const name of Object.getOwnPropertyNames(source)) {
+		if (!overwrite && Object.hasOwn(destination, name)) {
+			// Skip descriptor
+			continue;
+		}
+
+		// Copy descriptor
+		const descriptor = Object.getOwnPropertyDescriptor(source, name);
+		Object.defineProperty(destination, name, descriptor);
+	}
+
+	return destination;
+}
+
+module.exports = mergeDescriptors;
diff --git a/backend/node_modules/merge-descriptors/license b/backend/node_modules/merge-descriptors/license
new file mode 100644
index 0000000..c509d45
--- /dev/null
+++ b/backend/node_modules/merge-descriptors/license
@@ -0,0 +1,11 @@
+MIT License
+
+Copyright (c) Jonathan Ong <me@jongleberry.com>
+Copyright (c) Douglas Christopher Wilson <doug@somethingdoug.com>
+Copyright (c) Sindre Sorhus <sindresorhus@gmail.com> (https://sindresorhus.com)
+
+Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
diff --git a/backend/node_modules/merge-descriptors/package.json b/backend/node_modules/merge-descriptors/package.json
new file mode 100644
index 0000000..9bedb25
--- /dev/null
+++ b/backend/node_modules/merge-descriptors/package.json
@@ -0,0 +1,50 @@
+{
+	"name": "merge-descriptors",
+	"version": "2.0.0",
+	"description": "Merge objects using their property descriptors",
+	"license": "MIT",
+	"repository": "sindresorhus/merge-descriptors",
+	"funding": "https://github.com/sponsors/sindresorhus",
+	"contributors": [
+		"Jonathan Ong <me@jongleberry.com>",
+		"Douglas Christopher Wilson <doug@somethingdoug.com>",
+		"Mike Grabowski <grabbou@gmail.com>",
+		"Sindre Sorhus <sindresorhus@gmail.com>"
+	],
+	"exports": {
+		"types": "./index.d.ts",
+		"default": "./index.js"
+	},
+	"main": "./index.js",
+	"types": "./index.d.ts",
+	"sideEffects": false,
+	"engines": {
+		"node": ">=18"
+	},
+	"scripts": {
+		"test": "xo && ava"
+	},
+	"files": [
+		"index.js",
+		"index.d.ts"
+	],
+	"keywords": [
+		"merge",
+		"descriptors",
+		"object",
+		"property",
+		"properties",
+		"merging",
+		"getter",
+		"setter"
+	],
+	"devDependencies": {
+		"ava": "^5.3.1",
+		"xo": "^0.56.0"
+	},
+	"xo": {
+		"rules": {
+			"unicorn/prefer-module": "off"
+		}
+	}
+}
diff --git a/backend/node_modules/merge-descriptors/readme.md b/backend/node_modules/merge-descriptors/readme.md
new file mode 100644
index 0000000..1dee67d
--- /dev/null
+++ b/backend/node_modules/merge-descriptors/readme.md
@@ -0,0 +1,55 @@
+# merge-descriptors
+
+> Merge objects using their property descriptors
+
+## Install
+
+```sh
+npm install merge-descriptors
+```
+
+## Usage
+
+```js
+import mergeDescriptors from 'merge-descriptors';
+
+const thing = {
+	get name() {
+		return 'John'
+	}
+}
+
+const animal = {};
+
+mergeDescriptors(animal, thing);
+
+console.log(animal.name);
+//=> 'John'
+```
+
+## API
+
+### merge(destination, source, overwrite?)
+
+Merges "own" properties from a source to a destination object, including non-enumerable and accessor-defined properties. It retains original values and descriptors, ensuring the destination receives a complete and accurate copy of the source's properties.
+
+Returns the modified destination object.
+
+#### destination
+
+Type: `object`
+
+The object to receive properties.
+
+#### source
+
+Type: `object`
+
+The object providing properties.
+
+#### overwrite
+
+Type: `boolean`\
+Default: `true`
+
+A boolean to control overwriting of existing properties.
diff --git a/backend/node_modules/mime-db/HISTORY.md b/backend/node_modules/mime-db/HISTORY.md
new file mode 100644
index 0000000..fb35bec
--- /dev/null
+++ b/backend/node_modules/mime-db/HISTORY.md
@@ -0,0 +1,541 @@
+1.54.0 / 2025-03-17
+===================
+
+  * Update mime type for DCM format (#362)
+  * mark application/octet-stream as compressible (#163)
+  * Fix typo in application/x-zip-compressed mimetype (#359)
+  * Add mime-type for Jupyter notebooks (#282)
+  * Add Google Drive MIME types (#311)
+  * Add .blend file type (#338)
+  * Add support for the FBX file extension (#342)
+  * Add Adobe DNG file (#340)
+  * Add Procreate Brush and Brush Set file Types (#339)
+  * Add support for Procreate Dreams  (#341)
+  * replace got with undici (#352)
+  * Added extensions list for model/step (#293)
+  * Add m4b as a type of audio/mp4 (#357)
+  * windows 11 application/x-zip-compressed (#346)
+  * add dotLottie mime type (#351)
+  * Add some MS-related extensions and types (#336)
+
+1.53.0 / 2024-07-12
+===================
+
+  * Add extension `.sql` to `application/sql`
+  * Add extensions `.aac` and `.adts` to `audio/aac`
+  * Add extensions `.js` and `.mjs` to `text/javascript`
+  * Add extensions for `application/mp4` from IANA
+  * Add extensions from IANA for more MIME types
+  * Add Microsoft app installer types and extensions
+  * Add new upstream MIME types
+  * Fix extensions for `text/markdown` to match IANA
+  * Remove extension `.mjs` from `application/javascript`
+  * Remove obsolete MIME types from IANA data
+
+1.52.0 / 2022-02-21
+===================
+
+  * Add extensions from IANA for more `image/*` types
+  * Add extension `.asc` to `application/pgp-keys`
+  * Add extensions to various XML types
+  * Add new upstream MIME types
+
+1.51.0 / 2021-11-08
+===================
+
+  * Add new upstream MIME types
+  * Mark `image/vnd.microsoft.icon` as compressible
+  * Mark `image/vnd.ms-dds` as compressible
+
+1.50.0 / 2021-09-15
+===================
+
+  * Add deprecated iWorks mime types and extensions
+  * Add new upstream MIME types
+
+1.49.0 / 2021-07-26
+===================
+
+  * Add extension `.trig` to `application/trig`
+  * Add new upstream MIME types
+
+1.48.0 / 2021-05-30
+===================
+
+  * Add extension `.mvt` to `application/vnd.mapbox-vector-tile`
+  * Add new upstream MIME types
+  * Mark `text/yaml` as compressible
+
+1.47.0 / 2021-04-01
+===================
+
+  * Add new upstream MIME types
+  * Remove ambiguous extensions from IANA for `application/*+xml` types
+  * Update primary extension to `.es` for `application/ecmascript`
+
+1.46.0 / 2021-02-13
+===================
+
+  * Add extension `.amr` to `audio/amr`
+  * Add extension `.m4s` to `video/iso.segment`
+  * Add extension `.opus` to `audio/ogg`
+  * Add new upstream MIME types
+
+1.45.0 / 2020-09-22
+===================
+
+  * Add `application/ubjson` with extension `.ubj`
+  * Add `image/avif` with extension `.avif`
+  * Add `image/ktx2` with extension `.ktx2`
+  * Add extension `.dbf` to `application/vnd.dbf`
+  * Add extension `.rar` to `application/vnd.rar`
+  * Add extension `.td` to `application/urc-targetdesc+xml`
+  * Add new upstream MIME types
+  * Fix extension of `application/vnd.apple.keynote` to be `.key`
+
+1.44.0 / 2020-04-22
+===================
+
+  * Add charsets from IANA
+  * Add extension `.cjs` to `application/node`
+  * Add new upstream MIME types
+
+1.43.0 / 2020-01-05
+===================
+
+  * Add `application/x-keepass2` with extension `.kdbx`
+  * Add extension `.mxmf` to `audio/mobile-xmf`
+  * Add extensions from IANA for `application/*+xml` types
+  * Add new upstream MIME types
+
+1.42.0 / 2019-09-25
+===================
+
+  * Add `image/vnd.ms-dds` with extension `.dds`
+  * Add new upstream MIME types
+  * Remove compressible from `multipart/mixed`
+
+1.41.0 / 2019-08-30
+===================
+
+  * Add new upstream MIME types
+  * Add `application/toml` with extension `.toml`
+  * Mark `font/ttf` as compressible
+
+1.40.0 / 2019-04-20
+===================
+
+  * Add extensions from IANA for `model/*` types
+  * Add `text/mdx` with extension `.mdx`
+
+1.39.0 / 2019-04-04
+===================
+
+  * Add extensions `.siv` and `.sieve` to `application/sieve`
+  * Add new upstream MIME types
+
+1.38.0 / 2019-02-04
+===================
+
+  * Add extension `.nq` to `application/n-quads`
+  * Add extension `.nt` to `application/n-triples`
+  * Add new upstream MIME types
+  * Mark `text/less` as compressible
+
+1.37.0 / 2018-10-19
+===================
+
+  * Add extensions to HEIC image types
+  * Add new upstream MIME types
+
+1.36.0 / 2018-08-20
+===================
+
+  * Add Apple file extensions from IANA
+  * Add extensions from IANA for `image/*` types
+  * Add new upstream MIME types
+
+1.35.0 / 2018-07-15
+===================
+
+  * Add extension `.owl` to `application/rdf+xml`
+  * Add new upstream MIME types
+    - Removes extension `.woff` from `application/font-woff`
+
+1.34.0 / 2018-06-03
+===================
+
+  * Add extension `.csl` to `application/vnd.citationstyles.style+xml`
+  * Add extension `.es` to `application/ecmascript`
+  * Add new upstream MIME types
+  * Add `UTF-8` as default charset for `text/turtle`
+  * Mark all XML-derived types as compressible
+
+1.33.0 / 2018-02-15
+===================
+
+  * Add extensions from IANA for `message/*` types
+  * Add new upstream MIME types
+  * Fix some incorrect OOXML types
+  * Remove `application/font-woff2`
+
+1.32.0 / 2017-11-29
+===================
+
+  * Add new upstream MIME types
+  * Update `text/hjson` to registered `application/hjson`
+  * Add `text/shex` with extension `.shex`
+
+1.31.0 / 2017-10-25
+===================
+
+  * Add `application/raml+yaml` with extension `.raml`
+  * Add `application/wasm` with extension `.wasm`
+  * Add new `font` type from IANA
+  * Add new upstream font extensions
+  * Add new upstream MIME types
+  * Add extensions for JPEG-2000 images
+
+1.30.0 / 2017-08-27
+===================
+
+  * Add `application/vnd.ms-outlook`
+  * Add `application/x-arj`
+  * Add extension `.mjs` to `application/javascript`
+  * Add glTF types and extensions
+  * Add new upstream MIME types
+  * Add `text/x-org`
+  * Add VirtualBox MIME types
+  * Fix `source` records for `video/*` types that are IANA
+  * Update `font/opentype` to registered `font/otf`
+
+1.29.0 / 2017-07-10
+===================
+
+  * Add `application/fido.trusted-apps+json`
+  * Add extension `.wadl` to `application/vnd.sun.wadl+xml`
+  * Add new upstream MIME types
+  * Add `UTF-8` as default charset for `text/css`
+
+1.28.0 / 2017-05-14
+===================
+
+  * Add new upstream MIME types
+  * Add extension `.gz` to `application/gzip`
+  * Update extensions `.md` and `.markdown` to be `text/markdown`
+
+1.27.0 / 2017-03-16
+===================
+
+  * Add new upstream MIME types
+  * Add `image/apng` with extension `.apng`
+
+1.26.0 / 2017-01-14
+===================
+
+  * Add new upstream MIME types
+  * Add extension `.geojson` to `application/geo+json`
+
+1.25.0 / 2016-11-11
+===================
+
+  * Add new upstream MIME types
+
+1.24.0 / 2016-09-18
+===================
+
+  * Add `audio/mp3`
+  * Add new upstream MIME types
+
+1.23.0 / 2016-05-01
+===================
+
+  * Add new upstream MIME types
+  * Add extension `.3gpp` to `audio/3gpp`
+
+1.22.0 / 2016-02-15
+===================
+
+  * Add `text/slim`
+  * Add extension `.rng` to `application/xml`
+  * Add new upstream MIME types
+  * Fix extension of `application/dash+xml` to be `.mpd`
+  * Update primary extension to `.m4a` for `audio/mp4`
+
+1.21.0 / 2016-01-06
+===================
+
+  * Add Google document types
+  * Add new upstream MIME types
+
+1.20.0 / 2015-11-10
+===================
+
+  * Add `text/x-suse-ymp`
+  * Add new upstream MIME types
+
+1.19.0 / 2015-09-17
+===================
+
+  * Add `application/vnd.apple.pkpass`
+  * Add new upstream MIME types
+
+1.18.0 / 2015-09-03
+===================
+
+  * Add new upstream MIME types
+
+1.17.0 / 2015-08-13
+===================
+
+  * Add `application/x-msdos-program`
+  * Add `audio/g711-0`
+  * Add `image/vnd.mozilla.apng`
+  * Add extension `.exe` to `application/x-msdos-program`
+
+1.16.0 / 2015-07-29
+===================
+
+  * Add `application/vnd.uri-map`
+
+1.15.0 / 2015-07-13
+===================
+
+  * Add `application/x-httpd-php`
+
+1.14.0 / 2015-06-25
+===================
+
+  * Add `application/scim+json`
+  * Add `application/vnd.3gpp.ussd+xml`
+  * Add `application/vnd.biopax.rdf+xml`
+  * Add `text/x-processing`
+
+1.13.0 / 2015-06-07
+===================
+
+  * Add nginx as a source
+  * Add `application/x-cocoa`
+  * Add `application/x-java-archive-diff`
+  * Add `application/x-makeself`
+  * Add `application/x-perl`
+  * Add `application/x-pilot`
+  * Add `application/x-redhat-package-manager`
+  * Add `application/x-sea`
+  * Add `audio/x-m4a`
+  * Add `audio/x-realaudio`
+  * Add `image/x-jng`
+  * Add `text/mathml`
+
+1.12.0 / 2015-06-05
+===================
+
+  * Add `application/bdoc`
+  * Add `application/vnd.hyperdrive+json`
+  * Add `application/x-bdoc`
+  * Add extension `.rtf` to `text/rtf`
+
+1.11.0 / 2015-05-31
+===================
+
+  * Add `audio/wav`
+  * Add `audio/wave`
+  * Add extension `.litcoffee` to `text/coffeescript`
+  * Add extension `.sfd-hdstx` to `application/vnd.hydrostatix.sof-data`
+  * Add extension `.n-gage` to `application/vnd.nokia.n-gage.symbian.install`
+
+1.10.0 / 2015-05-19
+===================
+
+  * Add `application/vnd.balsamiq.bmpr`
+  * Add `application/vnd.microsoft.portable-executable`
+  * Add `application/x-ns-proxy-autoconfig`
+
+1.9.1 / 2015-04-19
+==================
+
+  * Remove `.json` extension from `application/manifest+json`
+    - This is causing bugs downstream
+
+1.9.0 / 2015-04-19
+==================
+
+  * Add `application/manifest+json`
+  * Add `application/vnd.micro+json`
+  * Add `image/vnd.zbrush.pcx`
+  * Add `image/x-ms-bmp`
+
+1.8.0 / 2015-03-13
+==================
+
+  * Add `application/vnd.citationstyles.style+xml`
+  * Add `application/vnd.fastcopy-disk-image`
+  * Add `application/vnd.gov.sk.xmldatacontainer+xml`
+  * Add extension `.jsonld` to `application/ld+json`
+
+1.7.0 / 2015-02-08
+==================
+
+  * Add `application/vnd.gerber`
+  * Add `application/vnd.msa-disk-image`
+
+1.6.1 / 2015-02-05
+==================
+
+  * Community extensions ownership transferred from `node-mime`
+
+1.6.0 / 2015-01-29
+==================
+
+  * Add `application/jose`
+  * Add `application/jose+json`
+  * Add `application/json-seq`
+  * Add `application/jwk+json`
+  * Add `application/jwk-set+json`
+  * Add `application/jwt`
+  * Add `application/rdap+json`
+  * Add `application/vnd.gov.sk.e-form+xml`
+  * Add `application/vnd.ims.imsccv1p3`
+
+1.5.0 / 2014-12-30
+==================
+
+  * Add `application/vnd.oracle.resource+json`
+  * Fix various invalid MIME type entries
+    - `application/mbox+xml`
+    - `application/oscp-response`
+    - `application/vwg-multiplexed`
+    - `audio/g721`
+
+1.4.0 / 2014-12-21
+==================
+
+  * Add `application/vnd.ims.imsccv1p2`
+  * Fix various invalid MIME type entries
+    - `application/vnd-acucobol`
+    - `application/vnd-curl`
+    - `application/vnd-dart`
+    - `application/vnd-dxr`
+    - `application/vnd-fdf`
+    - `application/vnd-mif`
+    - `application/vnd-sema`
+    - `application/vnd-wap-wmlc`
+    - `application/vnd.adobe.flash-movie`
+    - `application/vnd.dece-zip`
+    - `application/vnd.dvb_service`
+    - `application/vnd.micrografx-igx`
+    - `application/vnd.sealed-doc`
+    - `application/vnd.sealed-eml`
+    - `application/vnd.sealed-mht`
+    - `application/vnd.sealed-ppt`
+    - `application/vnd.sealed-tiff`
+    - `application/vnd.sealed-xls`
+    - `application/vnd.sealedmedia.softseal-html`
+    - `application/vnd.sealedmedia.softseal-pdf`
+    - `application/vnd.wap-slc`
+    - `application/vnd.wap-wbxml`
+    - `audio/vnd.sealedmedia.softseal-mpeg`
+    - `image/vnd-djvu`
+    - `image/vnd-svf`
+    - `image/vnd-wap-wbmp`
+    - `image/vnd.sealed-png`
+    - `image/vnd.sealedmedia.softseal-gif`
+    - `image/vnd.sealedmedia.softseal-jpg`
+    - `model/vnd-dwf`
+    - `model/vnd.parasolid.transmit-binary`
+    - `model/vnd.parasolid.transmit-text`
+    - `text/vnd-a`
+    - `text/vnd-curl`
+    - `text/vnd.wap-wml`
+  * Remove example template MIME types
+    - `application/example`
+    - `audio/example`
+    - `image/example`
+    - `message/example`
+    - `model/example`
+    - `multipart/example`
+    - `text/example`
+    - `video/example`
+
+1.3.1 / 2014-12-16
+==================
+
+  * Fix missing extensions
+    - `application/json5`
+    - `text/hjson`
+
+1.3.0 / 2014-12-07
+==================
+
+  * Add `application/a2l`
+  * Add `application/aml`
+  * Add `application/atfx`
+  * Add `application/atxml`
+  * Add `application/cdfx+xml`
+  * Add `application/dii`
+  * Add `application/json5`
+  * Add `application/lxf`
+  * Add `application/mf4`
+  * Add `application/vnd.apache.thrift.compact`
+  * Add `application/vnd.apache.thrift.json`
+  * Add `application/vnd.coffeescript`
+  * Add `application/vnd.enphase.envoy`
+  * Add `application/vnd.ims.imsccv1p1`
+  * Add `text/csv-schema`
+  * Add `text/hjson`
+  * Add `text/markdown`
+  * Add `text/yaml`
+
+1.2.0 / 2014-11-09
+==================
+
+  * Add `application/cea`
+  * Add `application/dit`
+  * Add `application/vnd.gov.sk.e-form+zip`
+  * Add `application/vnd.tmd.mediaflex.api+xml`
+  * Type `application/epub+zip` is now IANA-registered
+
+1.1.2 / 2014-10-23
+==================
+
+  * Rebuild database for `application/x-www-form-urlencoded` change
+
+1.1.1 / 2014-10-20
+==================
+
+  * Mark `application/x-www-form-urlencoded` as compressible.
+
+1.1.0 / 2014-09-28
+==================
+
+  * Add `application/font-woff2`
+
+1.0.3 / 2014-09-25
+==================
+
+  * Fix engine requirement in package
+
+1.0.2 / 2014-09-25
+==================
+
+  * Add `application/coap-group+json`
+  * Add `application/dcd`
+  * Add `application/vnd.apache.thrift.binary`
+  * Add `image/vnd.tencent.tap`
+  * Mark all JSON-derived types as compressible
+  * Update `text/vtt` data
+
+1.0.1 / 2014-08-30
+==================
+
+  * Fix extension ordering
+
+1.0.0 / 2014-08-30
+==================
+
+  * Add `application/atf`
+  * Add `application/merge-patch+json`
+  * Add `multipart/x-mixed-replace`
+  * Add `source: 'apache'` metadata
+  * Add `source: 'iana'` metadata
+  * Remove badly-assumed charset data
diff --git a/backend/node_modules/mime-db/LICENSE b/backend/node_modules/mime-db/LICENSE
new file mode 100644
index 0000000..0751cb1
--- /dev/null
+++ b/backend/node_modules/mime-db/LICENSE
@@ -0,0 +1,23 @@
+(The MIT License)
+
+Copyright (c) 2014 Jonathan Ong <me@jongleberry.com>
+Copyright (c) 2015-2022 Douglas Christopher Wilson <doug@somethingdoug.com>
+
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of this software and associated documentation files (the
+'Software'), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sublicense, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to
+the following conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
diff --git a/backend/node_modules/mime-db/README.md b/backend/node_modules/mime-db/README.md
new file mode 100644
index 0000000..ee93fa0
--- /dev/null
+++ b/backend/node_modules/mime-db/README.md
@@ -0,0 +1,109 @@
+# mime-db
+
+[![NPM Version][npm-version-image]][npm-url]
+[![NPM Downloads][npm-downloads-image]][npm-url]
+[![Node.js Version][node-image]][node-url]
+[![Build Status][ci-image]][ci-url]
+[![Coverage Status][coveralls-image]][coveralls-url]
+
+This is a large database of mime types and information about them.
+It consists of a single, public JSON file and does not include any logic,
+allowing it to remain as un-opinionated as possible with an API.
+It aggregates data from the following sources:
+
+- https://www.iana.org/assignments/media-types/media-types.xhtml
+- https://svn.apache.org/repos/asf/httpd/httpd/trunk/docs/conf/mime.types
+- https://hg.nginx.org/nginx/raw-file/default/conf/mime.types
+
+## Installation
+
+```bash
+npm install mime-db
+```
+
+### Database Download
+
+If you intend to use this in a web browser, you can conveniently access the JSON file via [jsDelivr](https://www.jsdelivr.com/), a popular CDN (Content Delivery Network). To ensure stability and compatibility, it is advisable to specify [a release tag](https://github.com/jshttp/mime-db/tags) instead of using the 'master' branch. This is because the JSON file's format might change in future updates, and relying on a specific release tag will prevent potential issues arising from these changes.
+
+```
+https://cdn.jsdelivr.net/gh/jshttp/mime-db@master/db.json
+```
+
+## Usage
+
+```js
+var db = require('mime-db')
+
+// grab data on .js files
+var data = db['application/javascript']
+```
+
+## Data Structure
+
+The JSON file is a map lookup for lowercased mime types.
+Each mime type has the following properties:
+
+- `.source` - where the mime type is defined.
+    If not set, it's probably a custom media type.
+    - `apache` - [Apache common media types](https://svn.apache.org/repos/asf/httpd/httpd/trunk/docs/conf/mime.types)
+    - `iana` - [IANA-defined media types](https://www.iana.org/assignments/media-types/media-types.xhtml)
+    - `nginx` - [nginx media types](https://hg.nginx.org/nginx/raw-file/default/conf/mime.types)
+- `.extensions[]` - known extensions associated with this mime type.
+- `.compressible` - whether a file of this type can be gzipped.
+- `.charset` - the default charset associated with this type, if any.
+
+If unknown, every property could be `undefined`.
+
+## Note on MIME Type Data and Semver
+
+This package considers the programmatic api as the semver compatibility. This means the MIME type resolution is *not* considered
+in the semver bumps. This means that if you want to pin your `mime-db` data you will need to do it in your application. While
+this expectation was not set in docs until now, it is how the pacakge operated, so we do not feel this is a breaking change.
+
+## Contributing
+
+The primary way to contribute to this database is by updating the data in
+one of the upstream sources. The database is updated from the upstreams
+periodically and will pull in any changes.
+
+### Registering Media Types
+
+The best way to get new media types included in this library is to register
+them with the IANA. The community registration procedure is outlined in
+[RFC 6838 section 5](https://tools.ietf.org/html/rfc6838#section-5). Types
+registered with the IANA are automatically pulled into this library.
+
+### Direct Inclusion
+
+If that is not possible / feasible, they can be added directly here as a
+"custom" type. To do this, it is required to have a primary source that
+definitively lists the media type. If an extension is going to be listed as
+associated with this media type, the source must definitively link the
+media type and extension as well.
+
+To edit the database, only make PRs against `src/custom-types.json` or
+`src/custom-suffix.json`.
+
+The `src/custom-types.json` file is a JSON object with the MIME type as the
+keys and the values being an object with the following keys:
+
+- `compressible` - leave out if you don't know, otherwise `true`/`false` to
+  indicate whether the data represented by the type is typically compressible.
+- `extensions` - include an array of file extensions that are associated with
+  the type.
+- `notes` - human-readable notes about the type, typically what the type is.
+- `sources` - include an array of URLs of where the MIME type and the associated
+  extensions are sourced from. This needs to be a [primary source](https://en.wikipedia.org/wiki/Primary_source);
+  links to type aggregating sites and Wikipedia are _not acceptable_.
+
+To update the build, run `npm run build`.
+
+[ci-image]: https://badgen.net/github/checks/jshttp/mime-db/master?label=ci
+[ci-url]: https://github.com/jshttp/mime-db/actions/workflows/ci.yml
+[coveralls-image]: https://badgen.net/coveralls/c/github/jshttp/mime-db/master
+[coveralls-url]: https://coveralls.io/r/jshttp/mime-db?branch=master
+[node-image]: https://badgen.net/npm/node/mime-db
+[node-url]: https://nodejs.org/en/download
+[npm-downloads-image]: https://badgen.net/npm/dm/mime-db
+[npm-url]: https://npmjs.org/package/mime-db
+[npm-version-image]: https://badgen.net/npm/v/mime-db
diff --git a/backend/node_modules/mime-db/db.json b/backend/node_modules/mime-db/db.json
new file mode 100644
index 0000000..7e74733
--- /dev/null
+++ b/backend/node_modules/mime-db/db.json
@@ -0,0 +1,9342 @@
+{
+  "application/1d-interleaved-parityfec": {
+    "source": "iana"
+  },
+  "application/3gpdash-qoe-report+xml": {
+    "source": "iana",
+    "charset": "UTF-8",
+    "compressible": true
+  },
+  "application/3gpp-ims+xml": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/3gpphal+json": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/3gpphalforms+json": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/a2l": {
+    "source": "iana"
+  },
+  "application/ace+cbor": {
+    "source": "iana"
+  },
+  "application/ace+json": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/ace-groupcomm+cbor": {
+    "source": "iana"
+  },
+  "application/ace-trl+cbor": {
+    "source": "iana"
+  },
+  "application/activemessage": {
+    "source": "iana"
+  },
+  "application/activity+json": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/aif+cbor": {
+    "source": "iana"
+  },
+  "application/aif+json": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/alto-cdni+json": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/alto-cdnifilter+json": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/alto-costmap+json": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/alto-costmapfilter+json": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/alto-directory+json": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/alto-endpointcost+json": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/alto-endpointcostparams+json": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/alto-endpointprop+json": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/alto-endpointpropparams+json": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/alto-error+json": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/alto-networkmap+json": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/alto-networkmapfilter+json": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/alto-propmap+json": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/alto-propmapparams+json": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/alto-tips+json": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/alto-tipsparams+json": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/alto-updatestreamcontrol+json": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/alto-updatestreamparams+json": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/aml": {
+    "source": "iana"
+  },
+  "application/andrew-inset": {
+    "source": "iana",
+    "extensions": ["ez"]
+  },
+  "application/appinstaller": {
+    "compressible": false,
+    "extensions": ["appinstaller"]
+  },
+  "application/applefile": {
+    "source": "iana"
+  },
+  "application/applixware": {
+    "source": "apache",
+    "extensions": ["aw"]
+  },
+  "application/appx": {
+    "compressible": false,
+    "extensions": ["appx"]
+  },
+  "application/appxbundle": {
+    "compressible": false,
+    "extensions": ["appxbundle"]
+  },
+  "application/at+jwt": {
+    "source": "iana"
+  },
+  "application/atf": {
+    "source": "iana"
+  },
+  "application/atfx": {
+    "source": "iana"
+  },
+  "application/atom+xml": {
+    "source": "iana",
+    "compressible": true,
+    "extensions": ["atom"]
+  },
+  "application/atomcat+xml": {
+    "source": "iana",
+    "compressible": true,
+    "extensions": ["atomcat"]
+  },
+  "application/atomdeleted+xml": {
+    "source": "iana",
+    "compressible": true,
+    "extensions": ["atomdeleted"]
+  },
+  "application/atomicmail": {
+    "source": "iana"
+  },
+  "application/atomsvc+xml": {
+    "source": "iana",
+    "compressible": true,
+    "extensions": ["atomsvc"]
+  },
+  "application/atsc-dwd+xml": {
+    "source": "iana",
+    "compressible": true,
+    "extensions": ["dwd"]
+  },
+  "application/atsc-dynamic-event-message": {
+    "source": "iana"
+  },
+  "application/atsc-held+xml": {
+    "source": "iana",
+    "compressible": true,
+    "extensions": ["held"]
+  },
+  "application/atsc-rdt+json": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/atsc-rsat+xml": {
+    "source": "iana",
+    "compressible": true,
+    "extensions": ["rsat"]
+  },
+  "application/atxml": {
+    "source": "iana"
+  },
+  "application/auth-policy+xml": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/automationml-aml+xml": {
+    "source": "iana",
+    "compressible": true,
+    "extensions": ["aml"]
+  },
+  "application/automationml-amlx+zip": {
+    "source": "iana",
+    "compressible": false,
+    "extensions": ["amlx"]
+  },
+  "application/bacnet-xdd+zip": {
+    "source": "iana",
+    "compressible": false
+  },
+  "application/batch-smtp": {
+    "source": "iana"
+  },
+  "application/bdoc": {
+    "compressible": false,
+    "extensions": ["bdoc"]
+  },
+  "application/beep+xml": {
+    "source": "iana",
+    "charset": "UTF-8",
+    "compressible": true
+  },
+  "application/bufr": {
+    "source": "iana"
+  },
+  "application/c2pa": {
+    "source": "iana"
+  },
+  "application/calendar+json": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/calendar+xml": {
+    "source": "iana",
+    "compressible": true,
+    "extensions": ["xcs"]
+  },
+  "application/call-completion": {
+    "source": "iana"
+  },
+  "application/cals-1840": {
+    "source": "iana"
+  },
+  "application/captive+json": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/cbor": {
+    "source": "iana"
+  },
+  "application/cbor-seq": {
+    "source": "iana"
+  },
+  "application/cccex": {
+    "source": "iana"
+  },
+  "application/ccmp+xml": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/ccxml+xml": {
+    "source": "iana",
+    "compressible": true,
+    "extensions": ["ccxml"]
+  },
+  "application/cda+xml": {
+    "source": "iana",
+    "charset": "UTF-8",
+    "compressible": true
+  },
+  "application/cdfx+xml": {
+    "source": "iana",
+    "compressible": true,
+    "extensions": ["cdfx"]
+  },
+  "application/cdmi-capability": {
+    "source": "iana",
+    "extensions": ["cdmia"]
+  },
+  "application/cdmi-container": {
+    "source": "iana",
+    "extensions": ["cdmic"]
+  },
+  "application/cdmi-domain": {
+    "source": "iana",
+    "extensions": ["cdmid"]
+  },
+  "application/cdmi-object": {
+    "source": "iana",
+    "extensions": ["cdmio"]
+  },
+  "application/cdmi-queue": {
+    "source": "iana",
+    "extensions": ["cdmiq"]
+  },
+  "application/cdni": {
+    "source": "iana"
+  },
+  "application/ce+cbor": {
+    "source": "iana"
+  },
+  "application/cea": {
+    "source": "iana"
+  },
+  "application/cea-2018+xml": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/cellml+xml": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/cfw": {
+    "source": "iana"
+  },
+  "application/cid-edhoc+cbor-seq": {
+    "source": "iana"
+  },
+  "application/city+json": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/city+json-seq": {
+    "source": "iana"
+  },
+  "application/clr": {
+    "source": "iana"
+  },
+  "application/clue+xml": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/clue_info+xml": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/cms": {
+    "source": "iana"
+  },
+  "application/cnrp+xml": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/coap-eap": {
+    "source": "iana"
+  },
+  "application/coap-group+json": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/coap-payload": {
+    "source": "iana"
+  },
+  "application/commonground": {
+    "source": "iana"
+  },
+  "application/concise-problem-details+cbor": {
+    "source": "iana"
+  },
+  "application/conference-info+xml": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/cose": {
+    "source": "iana"
+  },
+  "application/cose-key": {
+    "source": "iana"
+  },
+  "application/cose-key-set": {
+    "source": "iana"
+  },
+  "application/cose-x509": {
+    "source": "iana"
+  },
+  "application/cpl+xml": {
+    "source": "iana",
+    "compressible": true,
+    "extensions": ["cpl"]
+  },
+  "application/csrattrs": {
+    "source": "iana"
+  },
+  "application/csta+xml": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/cstadata+xml": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/csvm+json": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/cu-seeme": {
+    "source": "apache",
+    "extensions": ["cu"]
+  },
+  "application/cwl": {
+    "source": "iana",
+    "extensions": ["cwl"]
+  },
+  "application/cwl+json": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/cwl+yaml": {
+    "source": "iana"
+  },
+  "application/cwt": {
+    "source": "iana"
+  },
+  "application/cybercash": {
+    "source": "iana"
+  },
+  "application/dart": {
+    "compressible": true
+  },
+  "application/dash+xml": {
+    "source": "iana",
+    "compressible": true,
+    "extensions": ["mpd"]
+  },
+  "application/dash-patch+xml": {
+    "source": "iana",
+    "compressible": true,
+    "extensions": ["mpp"]
+  },
+  "application/dashdelta": {
+    "source": "iana"
+  },
+  "application/davmount+xml": {
+    "source": "iana",
+    "compressible": true,
+    "extensions": ["davmount"]
+  },
+  "application/dca-rft": {
+    "source": "iana"
+  },
+  "application/dcd": {
+    "source": "iana"
+  },
+  "application/dec-dx": {
+    "source": "iana"
+  },
+  "application/dialog-info+xml": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/dicom": {
+    "source": "iana",
+    "extensions": ["dcm"]
+  },
+  "application/dicom+json": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/dicom+xml": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/dii": {
+    "source": "iana"
+  },
+  "application/dit": {
+    "source": "iana"
+  },
+  "application/dns": {
+    "source": "iana"
+  },
+  "application/dns+json": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/dns-message": {
+    "source": "iana"
+  },
+  "application/docbook+xml": {
+    "source": "apache",
+    "compressible": true,
+    "extensions": ["dbk"]
+  },
+  "application/dots+cbor": {
+    "source": "iana"
+  },
+  "application/dpop+jwt": {
+    "source": "iana"
+  },
+  "application/dskpp+xml": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/dssc+der": {
+    "source": "iana",
+    "extensions": ["dssc"]
+  },
+  "application/dssc+xml": {
+    "source": "iana",
+    "compressible": true,
+    "extensions": ["xdssc"]
+  },
+  "application/dvcs": {
+    "source": "iana"
+  },
+  "application/eat+cwt": {
+    "source": "iana"
+  },
+  "application/eat+jwt": {
+    "source": "iana"
+  },
+  "application/eat-bun+cbor": {
+    "source": "iana"
+  },
+  "application/eat-bun+json": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/eat-ucs+cbor": {
+    "source": "iana"
+  },
+  "application/eat-ucs+json": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/ecmascript": {
+    "source": "apache",
+    "compressible": true,
+    "extensions": ["ecma"]
+  },
+  "application/edhoc+cbor-seq": {
+    "source": "iana"
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+  "application/edi-consent": {
+    "source": "iana"
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+  "application/edi-x12": {
+    "source": "iana",
+    "compressible": false
+  },
+  "application/edifact": {
+    "source": "iana",
+    "compressible": false
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+  "application/efi": {
+    "source": "iana"
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+  "application/elm+json": {
+    "source": "iana",
+    "charset": "UTF-8",
+    "compressible": true
+  },
+  "application/elm+xml": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/emergencycalldata.cap+xml": {
+    "source": "iana",
+    "charset": "UTF-8",
+    "compressible": true
+  },
+  "application/emergencycalldata.comment+xml": {
+    "source": "iana",
+    "compressible": true
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+  "application/emergencycalldata.control+xml": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/emergencycalldata.deviceinfo+xml": {
+    "source": "iana",
+    "compressible": true
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+  "application/emergencycalldata.ecall.msd": {
+    "source": "iana"
+  },
+  "application/emergencycalldata.legacyesn+json": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/emergencycalldata.providerinfo+xml": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/emergencycalldata.serviceinfo+xml": {
+    "source": "iana",
+    "compressible": true
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+  "application/emergencycalldata.subscriberinfo+xml": {
+    "source": "iana",
+    "compressible": true
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+  "application/emergencycalldata.veds+xml": {
+    "source": "iana",
+    "compressible": true
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+  "application/emma+xml": {
+    "source": "iana",
+    "compressible": true,
+    "extensions": ["emma"]
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+  "application/emotionml+xml": {
+    "source": "iana",
+    "compressible": true,
+    "extensions": ["emotionml"]
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+  "application/encaprtp": {
+    "source": "iana"
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+  "application/entity-statement+jwt": {
+    "source": "iana"
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+  "application/epp+xml": {
+    "source": "iana",
+    "compressible": true
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+  "application/epub+zip": {
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+    "compressible": false,
+    "extensions": ["epub"]
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+  "application/eshop": {
+    "source": "iana"
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+  "application/exi": {
+    "source": "iana",
+    "extensions": ["exi"]
+  },
+  "application/expect-ct-report+json": {
+    "source": "iana",
+    "compressible": true
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+  "application/express": {
+    "source": "iana",
+    "extensions": ["exp"]
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+  "application/fastinfoset": {
+    "source": "iana"
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+  "application/fastsoap": {
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+  "application/fdf": {
+    "source": "iana",
+    "extensions": ["fdf"]
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+  "application/fdt+xml": {
+    "source": "iana",
+    "compressible": true,
+    "extensions": ["fdt"]
+  },
+  "application/fhir+json": {
+    "source": "iana",
+    "charset": "UTF-8",
+    "compressible": true
+  },
+  "application/fhir+xml": {
+    "source": "iana",
+    "charset": "UTF-8",
+    "compressible": true
+  },
+  "application/fido.trusted-apps+json": {
+    "compressible": true
+  },
+  "application/fits": {
+    "source": "iana"
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+  "application/flexfec": {
+    "source": "iana"
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+  "application/font-sfnt": {
+    "source": "iana"
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+  "application/font-tdpfr": {
+    "source": "iana",
+    "extensions": ["pfr"]
+  },
+  "application/font-woff": {
+    "source": "iana",
+    "compressible": false
+  },
+  "application/framework-attributes+xml": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/geo+json": {
+    "source": "iana",
+    "compressible": true,
+    "extensions": ["geojson"]
+  },
+  "application/geo+json-seq": {
+    "source": "iana"
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+  "application/geopackage+sqlite3": {
+    "source": "iana"
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+  "application/geopose+json": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/geoxacml+json": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/geoxacml+xml": {
+    "source": "iana",
+    "compressible": true
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+  "application/gltf-buffer": {
+    "source": "iana"
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+  "application/gml+xml": {
+    "source": "iana",
+    "compressible": true,
+    "extensions": ["gml"]
+  },
+  "application/gnap-binding-jws": {
+    "source": "iana"
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+  "application/gnap-binding-jwsd": {
+    "source": "iana"
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+  "application/gnap-binding-rotation-jws": {
+    "source": "iana"
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+  "application/gnap-binding-rotation-jwsd": {
+    "source": "iana"
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+  "application/gpx+xml": {
+    "source": "apache",
+    "compressible": true,
+    "extensions": ["gpx"]
+  },
+  "application/grib": {
+    "source": "iana"
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+  "application/gxf": {
+    "source": "apache",
+    "extensions": ["gxf"]
+  },
+  "application/gzip": {
+    "source": "iana",
+    "compressible": false,
+    "extensions": ["gz"]
+  },
+  "application/h224": {
+    "source": "iana"
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+  "application/held+xml": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/hjson": {
+    "extensions": ["hjson"]
+  },
+  "application/hl7v2+xml": {
+    "source": "iana",
+    "charset": "UTF-8",
+    "compressible": true
+  },
+  "application/http": {
+    "source": "iana"
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+  "application/hyperstudio": {
+    "source": "iana",
+    "extensions": ["stk"]
+  },
+  "application/ibe-key-request+xml": {
+    "source": "iana",
+    "compressible": true
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+  "application/ibe-pkg-reply+xml": {
+    "source": "iana",
+    "compressible": true
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+  "application/ibe-pp-data": {
+    "source": "iana"
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+  "application/iges": {
+    "source": "iana"
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+  "application/im-iscomposing+xml": {
+    "source": "iana",
+    "charset": "UTF-8",
+    "compressible": true
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+  "application/index": {
+    "source": "iana"
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+  "application/index.cmd": {
+    "source": "iana"
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+  "application/index.obj": {
+    "source": "iana"
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+  "application/index.response": {
+    "source": "iana"
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+  "application/index.vnd": {
+    "source": "iana"
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+  "application/inkml+xml": {
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+    "compressible": true,
+    "extensions": ["ink","inkml"]
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+  "application/iotp": {
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+  "application/ipfix": {
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+    "extensions": ["ipfix"]
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+  "application/ipp": {
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+  "application/isup": {
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+  "application/its+xml": {
+    "source": "iana",
+    "compressible": true,
+    "extensions": ["its"]
+  },
+  "application/java-archive": {
+    "source": "iana",
+    "compressible": false,
+    "extensions": ["jar","war","ear"]
+  },
+  "application/java-serialized-object": {
+    "source": "apache",
+    "compressible": false,
+    "extensions": ["ser"]
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+  "application/java-vm": {
+    "source": "apache",
+    "compressible": false,
+    "extensions": ["class"]
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+  "application/javascript": {
+    "source": "apache",
+    "charset": "UTF-8",
+    "compressible": true,
+    "extensions": ["js"]
+  },
+  "application/jf2feed+json": {
+    "source": "iana",
+    "compressible": true
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+  "application/jose": {
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+  "application/jose+json": {
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+    "compressible": true
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+  "application/jrd+json": {
+    "source": "iana",
+    "compressible": true
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+  "application/jscalendar+json": {
+    "source": "iana",
+    "compressible": true
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+  "application/jscontact+json": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/json": {
+    "source": "iana",
+    "charset": "UTF-8",
+    "compressible": true,
+    "extensions": ["json","map"]
+  },
+  "application/json-patch+json": {
+    "source": "iana",
+    "compressible": true
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+  "application/json-seq": {
+    "source": "iana"
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+  "application/json5": {
+    "extensions": ["json5"]
+  },
+  "application/jsonml+json": {
+    "source": "apache",
+    "compressible": true,
+    "extensions": ["jsonml"]
+  },
+  "application/jsonpath": {
+    "source": "iana"
+  },
+  "application/jwk+json": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/jwk-set+json": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/jwk-set+jwt": {
+    "source": "iana"
+  },
+  "application/jwt": {
+    "source": "iana"
+  },
+  "application/kpml-request+xml": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/kpml-response+xml": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/ld+json": {
+    "source": "iana",
+    "compressible": true,
+    "extensions": ["jsonld"]
+  },
+  "application/lgr+xml": {
+    "source": "iana",
+    "compressible": true,
+    "extensions": ["lgr"]
+  },
+  "application/link-format": {
+    "source": "iana"
+  },
+  "application/linkset": {
+    "source": "iana"
+  },
+  "application/linkset+json": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/load-control+xml": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/logout+jwt": {
+    "source": "iana"
+  },
+  "application/lost+xml": {
+    "source": "iana",
+    "compressible": true,
+    "extensions": ["lostxml"]
+  },
+  "application/lostsync+xml": {
+    "source": "iana",
+    "compressible": true
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+  "application/lpf+zip": {
+    "source": "iana",
+    "compressible": false
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+  "application/lxf": {
+    "source": "iana"
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+  "application/mac-binhex40": {
+    "source": "iana",
+    "extensions": ["hqx"]
+  },
+  "application/mac-compactpro": {
+    "source": "apache",
+    "extensions": ["cpt"]
+  },
+  "application/macwriteii": {
+    "source": "iana"
+  },
+  "application/mads+xml": {
+    "source": "iana",
+    "compressible": true,
+    "extensions": ["mads"]
+  },
+  "application/manifest+json": {
+    "source": "iana",
+    "charset": "UTF-8",
+    "compressible": true,
+    "extensions": ["webmanifest"]
+  },
+  "application/marc": {
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+    "extensions": ["mrc"]
+  },
+  "application/marcxml+xml": {
+    "source": "iana",
+    "compressible": true,
+    "extensions": ["mrcx"]
+  },
+  "application/mathematica": {
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+    "extensions": ["ma","nb","mb"]
+  },
+  "application/mathml+xml": {
+    "source": "iana",
+    "compressible": true,
+    "extensions": ["mathml"]
+  },
+  "application/mathml-content+xml": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/mathml-presentation+xml": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/mbms-associated-procedure-description+xml": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/mbms-deregister+xml": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/mbms-envelope+xml": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/mbms-msk+xml": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/mbms-msk-response+xml": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/mbms-protection-description+xml": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/mbms-reception-report+xml": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/mbms-register+xml": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/mbms-register-response+xml": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/mbms-schedule+xml": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/mbms-user-service-description+xml": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/mbox": {
+    "source": "iana",
+    "extensions": ["mbox"]
+  },
+  "application/media-policy-dataset+xml": {
+    "source": "iana",
+    "compressible": true,
+    "extensions": ["mpf"]
+  },
+  "application/media_control+xml": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/mediaservercontrol+xml": {
+    "source": "iana",
+    "compressible": true,
+    "extensions": ["mscml"]
+  },
+  "application/merge-patch+json": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/metalink+xml": {
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+    "compressible": true,
+    "extensions": ["metalink"]
+  },
+  "application/metalink4+xml": {
+    "source": "iana",
+    "compressible": true,
+    "extensions": ["meta4"]
+  },
+  "application/mets+xml": {
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+    "compressible": true,
+    "extensions": ["mets"]
+  },
+  "application/mf4": {
+    "source": "iana"
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+  "application/mikey": {
+    "source": "iana"
+  },
+  "application/mipc": {
+    "source": "iana"
+  },
+  "application/missing-blocks+cbor-seq": {
+    "source": "iana"
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+  "application/mmt-aei+xml": {
+    "source": "iana",
+    "compressible": true,
+    "extensions": ["maei"]
+  },
+  "application/mmt-usd+xml": {
+    "source": "iana",
+    "compressible": true,
+    "extensions": ["musd"]
+  },
+  "application/mods+xml": {
+    "source": "iana",
+    "compressible": true,
+    "extensions": ["mods"]
+  },
+  "application/moss-keys": {
+    "source": "iana"
+  },
+  "application/moss-signature": {
+    "source": "iana"
+  },
+  "application/mosskey-data": {
+    "source": "iana"
+  },
+  "application/mosskey-request": {
+    "source": "iana"
+  },
+  "application/mp21": {
+    "source": "iana",
+    "extensions": ["m21","mp21"]
+  },
+  "application/mp4": {
+    "source": "iana",
+    "extensions": ["mp4","mpg4","mp4s","m4p"]
+  },
+  "application/mpeg4-generic": {
+    "source": "iana"
+  },
+  "application/mpeg4-iod": {
+    "source": "iana"
+  },
+  "application/mpeg4-iod-xmt": {
+    "source": "iana"
+  },
+  "application/mrb-consumer+xml": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/mrb-publish+xml": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/msc-ivr+xml": {
+    "source": "iana",
+    "charset": "UTF-8",
+    "compressible": true
+  },
+  "application/msc-mixer+xml": {
+    "source": "iana",
+    "charset": "UTF-8",
+    "compressible": true
+  },
+  "application/msix": {
+    "compressible": false,
+    "extensions": ["msix"]
+  },
+  "application/msixbundle": {
+    "compressible": false,
+    "extensions": ["msixbundle"]
+  },
+  "application/msword": {
+    "source": "iana",
+    "compressible": false,
+    "extensions": ["doc","dot"]
+  },
+  "application/mud+json": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/multipart-core": {
+    "source": "iana"
+  },
+  "application/mxf": {
+    "source": "iana",
+    "extensions": ["mxf"]
+  },
+  "application/n-quads": {
+    "source": "iana",
+    "extensions": ["nq"]
+  },
+  "application/n-triples": {
+    "source": "iana",
+    "extensions": ["nt"]
+  },
+  "application/nasdata": {
+    "source": "iana"
+  },
+  "application/news-checkgroups": {
+    "source": "iana",
+    "charset": "US-ASCII"
+  },
+  "application/news-groupinfo": {
+    "source": "iana",
+    "charset": "US-ASCII"
+  },
+  "application/news-transmission": {
+    "source": "iana"
+  },
+  "application/nlsml+xml": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/node": {
+    "source": "iana",
+    "extensions": ["cjs"]
+  },
+  "application/nss": {
+    "source": "iana"
+  },
+  "application/oauth-authz-req+jwt": {
+    "source": "iana"
+  },
+  "application/oblivious-dns-message": {
+    "source": "iana"
+  },
+  "application/ocsp-request": {
+    "source": "iana"
+  },
+  "application/ocsp-response": {
+    "source": "iana"
+  },
+  "application/octet-stream": {
+    "source": "iana",
+    "compressible": true,
+    "extensions": ["bin","dms","lrf","mar","so","dist","distz","pkg","bpk","dump","elc","deploy","exe","dll","deb","dmg","iso","img","msi","msp","msm","buffer"]
+  },
+  "application/oda": {
+    "source": "iana",
+    "extensions": ["oda"]
+  },
+  "application/odm+xml": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/odx": {
+    "source": "iana"
+  },
+  "application/oebps-package+xml": {
+    "source": "iana",
+    "compressible": true,
+    "extensions": ["opf"]
+  },
+  "application/ogg": {
+    "source": "iana",
+    "compressible": false,
+    "extensions": ["ogx"]
+  },
+  "application/ohttp-keys": {
+    "source": "iana"
+  },
+  "application/omdoc+xml": {
+    "source": "apache",
+    "compressible": true,
+    "extensions": ["omdoc"]
+  },
+  "application/onenote": {
+    "source": "apache",
+    "extensions": ["onetoc","onetoc2","onetmp","onepkg","one","onea"]
+  },
+  "application/opc-nodeset+xml": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/oscore": {
+    "source": "iana"
+  },
+  "application/oxps": {
+    "source": "iana",
+    "extensions": ["oxps"]
+  },
+  "application/p21": {
+    "source": "iana"
+  },
+  "application/p21+zip": {
+    "source": "iana",
+    "compressible": false
+  },
+  "application/p2p-overlay+xml": {
+    "source": "iana",
+    "compressible": true,
+    "extensions": ["relo"]
+  },
+  "application/parityfec": {
+    "source": "iana"
+  },
+  "application/passport": {
+    "source": "iana"
+  },
+  "application/patch-ops-error+xml": {
+    "source": "iana",
+    "compressible": true,
+    "extensions": ["xer"]
+  },
+  "application/pdf": {
+    "source": "iana",
+    "compressible": false,
+    "extensions": ["pdf"]
+  },
+  "application/pdx": {
+    "source": "iana"
+  },
+  "application/pem-certificate-chain": {
+    "source": "iana"
+  },
+  "application/pgp-encrypted": {
+    "source": "iana",
+    "compressible": false,
+    "extensions": ["pgp"]
+  },
+  "application/pgp-keys": {
+    "source": "iana",
+    "extensions": ["asc"]
+  },
+  "application/pgp-signature": {
+    "source": "iana",
+    "extensions": ["sig","asc"]
+  },
+  "application/pics-rules": {
+    "source": "apache",
+    "extensions": ["prf"]
+  },
+  "application/pidf+xml": {
+    "source": "iana",
+    "charset": "UTF-8",
+    "compressible": true
+  },
+  "application/pidf-diff+xml": {
+    "source": "iana",
+    "charset": "UTF-8",
+    "compressible": true
+  },
+  "application/pkcs10": {
+    "source": "iana",
+    "extensions": ["p10"]
+  },
+  "application/pkcs12": {
+    "source": "iana"
+  },
+  "application/pkcs7-mime": {
+    "source": "iana",
+    "extensions": ["p7m","p7c"]
+  },
+  "application/pkcs7-signature": {
+    "source": "iana",
+    "extensions": ["p7s"]
+  },
+  "application/pkcs8": {
+    "source": "iana",
+    "extensions": ["p8"]
+  },
+  "application/pkcs8-encrypted": {
+    "source": "iana"
+  },
+  "application/pkix-attr-cert": {
+    "source": "iana",
+    "extensions": ["ac"]
+  },
+  "application/pkix-cert": {
+    "source": "iana",
+    "extensions": ["cer"]
+  },
+  "application/pkix-crl": {
+    "source": "iana",
+    "extensions": ["crl"]
+  },
+  "application/pkix-pkipath": {
+    "source": "iana",
+    "extensions": ["pkipath"]
+  },
+  "application/pkixcmp": {
+    "source": "iana",
+    "extensions": ["pki"]
+  },
+  "application/pls+xml": {
+    "source": "iana",
+    "compressible": true,
+    "extensions": ["pls"]
+  },
+  "application/poc-settings+xml": {
+    "source": "iana",
+    "charset": "UTF-8",
+    "compressible": true
+  },
+  "application/postscript": {
+    "source": "iana",
+    "compressible": true,
+    "extensions": ["ai","eps","ps"]
+  },
+  "application/ppsp-tracker+json": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/private-token-issuer-directory": {
+    "source": "iana"
+  },
+  "application/private-token-request": {
+    "source": "iana"
+  },
+  "application/private-token-response": {
+    "source": "iana"
+  },
+  "application/problem+json": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/problem+xml": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/provenance+xml": {
+    "source": "iana",
+    "compressible": true,
+    "extensions": ["provx"]
+  },
+  "application/provided-claims+jwt": {
+    "source": "iana"
+  },
+  "application/prs.alvestrand.titrax-sheet": {
+    "source": "iana"
+  },
+  "application/prs.cww": {
+    "source": "iana",
+    "extensions": ["cww"]
+  },
+  "application/prs.cyn": {
+    "source": "iana",
+    "charset": "7-BIT"
+  },
+  "application/prs.hpub+zip": {
+    "source": "iana",
+    "compressible": false
+  },
+  "application/prs.implied-document+xml": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/prs.implied-executable": {
+    "source": "iana"
+  },
+  "application/prs.implied-object+json": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/prs.implied-object+json-seq": {
+    "source": "iana"
+  },
+  "application/prs.implied-object+yaml": {
+    "source": "iana"
+  },
+  "application/prs.implied-structure": {
+    "source": "iana"
+  },
+  "application/prs.mayfile": {
+    "source": "iana"
+  },
+  "application/prs.nprend": {
+    "source": "iana"
+  },
+  "application/prs.plucker": {
+    "source": "iana"
+  },
+  "application/prs.rdf-xml-crypt": {
+    "source": "iana"
+  },
+  "application/prs.vcfbzip2": {
+    "source": "iana"
+  },
+  "application/prs.xsf+xml": {
+    "source": "iana",
+    "compressible": true,
+    "extensions": ["xsf"]
+  },
+  "application/pskc+xml": {
+    "source": "iana",
+    "compressible": true,
+    "extensions": ["pskcxml"]
+  },
+  "application/pvd+json": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/qsig": {
+    "source": "iana"
+  },
+  "application/raml+yaml": {
+    "compressible": true,
+    "extensions": ["raml"]
+  },
+  "application/raptorfec": {
+    "source": "iana"
+  },
+  "application/rdap+json": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/rdf+xml": {
+    "source": "iana",
+    "compressible": true,
+    "extensions": ["rdf","owl"]
+  },
+  "application/reginfo+xml": {
+    "source": "iana",
+    "compressible": true,
+    "extensions": ["rif"]
+  },
+  "application/relax-ng-compact-syntax": {
+    "source": "iana",
+    "extensions": ["rnc"]
+  },
+  "application/remote-printing": {
+    "source": "apache"
+  },
+  "application/reputon+json": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/resolve-response+jwt": {
+    "source": "iana"
+  },
+  "application/resource-lists+xml": {
+    "source": "iana",
+    "compressible": true,
+    "extensions": ["rl"]
+  },
+  "application/resource-lists-diff+xml": {
+    "source": "iana",
+    "compressible": true,
+    "extensions": ["rld"]
+  },
+  "application/rfc+xml": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/riscos": {
+    "source": "iana"
+  },
+  "application/rlmi+xml": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/rls-services+xml": {
+    "source": "iana",
+    "compressible": true,
+    "extensions": ["rs"]
+  },
+  "application/route-apd+xml": {
+    "source": "iana",
+    "compressible": true,
+    "extensions": ["rapd"]
+  },
+  "application/route-s-tsid+xml": {
+    "source": "iana",
+    "compressible": true,
+    "extensions": ["sls"]
+  },
+  "application/route-usd+xml": {
+    "source": "iana",
+    "compressible": true,
+    "extensions": ["rusd"]
+  },
+  "application/rpki-checklist": {
+    "source": "iana"
+  },
+  "application/rpki-ghostbusters": {
+    "source": "iana",
+    "extensions": ["gbr"]
+  },
+  "application/rpki-manifest": {
+    "source": "iana",
+    "extensions": ["mft"]
+  },
+  "application/rpki-publication": {
+    "source": "iana"
+  },
+  "application/rpki-roa": {
+    "source": "iana",
+    "extensions": ["roa"]
+  },
+  "application/rpki-signed-tal": {
+    "source": "iana"
+  },
+  "application/rpki-updown": {
+    "source": "iana"
+  },
+  "application/rsd+xml": {
+    "source": "apache",
+    "compressible": true,
+    "extensions": ["rsd"]
+  },
+  "application/rss+xml": {
+    "source": "apache",
+    "compressible": true,
+    "extensions": ["rss"]
+  },
+  "application/rtf": {
+    "source": "iana",
+    "compressible": true,
+    "extensions": ["rtf"]
+  },
+  "application/rtploopback": {
+    "source": "iana"
+  },
+  "application/rtx": {
+    "source": "iana"
+  },
+  "application/samlassertion+xml": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/samlmetadata+xml": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/sarif+json": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/sarif-external-properties+json": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/sbe": {
+    "source": "iana"
+  },
+  "application/sbml+xml": {
+    "source": "iana",
+    "compressible": true,
+    "extensions": ["sbml"]
+  },
+  "application/scaip+xml": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/scim+json": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/scvp-cv-request": {
+    "source": "iana",
+    "extensions": ["scq"]
+  },
+  "application/scvp-cv-response": {
+    "source": "iana",
+    "extensions": ["scs"]
+  },
+  "application/scvp-vp-request": {
+    "source": "iana",
+    "extensions": ["spq"]
+  },
+  "application/scvp-vp-response": {
+    "source": "iana",
+    "extensions": ["spp"]
+  },
+  "application/sdp": {
+    "source": "iana",
+    "extensions": ["sdp"]
+  },
+  "application/secevent+jwt": {
+    "source": "iana"
+  },
+  "application/senml+cbor": {
+    "source": "iana"
+  },
+  "application/senml+json": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/senml+xml": {
+    "source": "iana",
+    "compressible": true,
+    "extensions": ["senmlx"]
+  },
+  "application/senml-etch+cbor": {
+    "source": "iana"
+  },
+  "application/senml-etch+json": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/senml-exi": {
+    "source": "iana"
+  },
+  "application/sensml+cbor": {
+    "source": "iana"
+  },
+  "application/sensml+json": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/sensml+xml": {
+    "source": "iana",
+    "compressible": true,
+    "extensions": ["sensmlx"]
+  },
+  "application/sensml-exi": {
+    "source": "iana"
+  },
+  "application/sep+xml": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/sep-exi": {
+    "source": "iana"
+  },
+  "application/session-info": {
+    "source": "iana"
+  },
+  "application/set-payment": {
+    "source": "iana"
+  },
+  "application/set-payment-initiation": {
+    "source": "iana",
+    "extensions": ["setpay"]
+  },
+  "application/set-registration": {
+    "source": "iana"
+  },
+  "application/set-registration-initiation": {
+    "source": "iana",
+    "extensions": ["setreg"]
+  },
+  "application/sgml": {
+    "source": "iana"
+  },
+  "application/sgml-open-catalog": {
+    "source": "iana"
+  },
+  "application/shf+xml": {
+    "source": "iana",
+    "compressible": true,
+    "extensions": ["shf"]
+  },
+  "application/sieve": {
+    "source": "iana",
+    "extensions": ["siv","sieve"]
+  },
+  "application/simple-filter+xml": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/simple-message-summary": {
+    "source": "iana"
+  },
+  "application/simplesymbolcontainer": {
+    "source": "iana"
+  },
+  "application/sipc": {
+    "source": "iana"
+  },
+  "application/slate": {
+    "source": "iana"
+  },
+  "application/smil": {
+    "source": "apache"
+  },
+  "application/smil+xml": {
+    "source": "iana",
+    "compressible": true,
+    "extensions": ["smi","smil"]
+  },
+  "application/smpte336m": {
+    "source": "iana"
+  },
+  "application/soap+fastinfoset": {
+    "source": "iana"
+  },
+  "application/soap+xml": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/sparql-query": {
+    "source": "iana",
+    "extensions": ["rq"]
+  },
+  "application/sparql-results+xml": {
+    "source": "iana",
+    "compressible": true,
+    "extensions": ["srx"]
+  },
+  "application/spdx+json": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/spirits-event+xml": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/sql": {
+    "source": "iana",
+    "extensions": ["sql"]
+  },
+  "application/srgs": {
+    "source": "iana",
+    "extensions": ["gram"]
+  },
+  "application/srgs+xml": {
+    "source": "iana",
+    "compressible": true,
+    "extensions": ["grxml"]
+  },
+  "application/sru+xml": {
+    "source": "iana",
+    "compressible": true,
+    "extensions": ["sru"]
+  },
+  "application/ssdl+xml": {
+    "source": "apache",
+    "compressible": true,
+    "extensions": ["ssdl"]
+  },
+  "application/sslkeylogfile": {
+    "source": "iana"
+  },
+  "application/ssml+xml": {
+    "source": "iana",
+    "compressible": true,
+    "extensions": ["ssml"]
+  },
+  "application/st2110-41": {
+    "source": "iana"
+  },
+  "application/stix+json": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/stratum": {
+    "source": "iana"
+  },
+  "application/swid+cbor": {
+    "source": "iana"
+  },
+  "application/swid+xml": {
+    "source": "iana",
+    "compressible": true,
+    "extensions": ["swidtag"]
+  },
+  "application/tamp-apex-update": {
+    "source": "iana"
+  },
+  "application/tamp-apex-update-confirm": {
+    "source": "iana"
+  },
+  "application/tamp-community-update": {
+    "source": "iana"
+  },
+  "application/tamp-community-update-confirm": {
+    "source": "iana"
+  },
+  "application/tamp-error": {
+    "source": "iana"
+  },
+  "application/tamp-sequence-adjust": {
+    "source": "iana"
+  },
+  "application/tamp-sequence-adjust-confirm": {
+    "source": "iana"
+  },
+  "application/tamp-status-query": {
+    "source": "iana"
+  },
+  "application/tamp-status-response": {
+    "source": "iana"
+  },
+  "application/tamp-update": {
+    "source": "iana"
+  },
+  "application/tamp-update-confirm": {
+    "source": "iana"
+  },
+  "application/tar": {
+    "compressible": true
+  },
+  "application/taxii+json": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/td+json": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/tei+xml": {
+    "source": "iana",
+    "compressible": true,
+    "extensions": ["tei","teicorpus"]
+  },
+  "application/tetra_isi": {
+    "source": "iana"
+  },
+  "application/thraud+xml": {
+    "source": "iana",
+    "compressible": true,
+    "extensions": ["tfi"]
+  },
+  "application/timestamp-query": {
+    "source": "iana"
+  },
+  "application/timestamp-reply": {
+    "source": "iana"
+  },
+  "application/timestamped-data": {
+    "source": "iana",
+    "extensions": ["tsd"]
+  },
+  "application/tlsrpt+gzip": {
+    "source": "iana"
+  },
+  "application/tlsrpt+json": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/tm+json": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/tnauthlist": {
+    "source": "iana"
+  },
+  "application/toc+cbor": {
+    "source": "iana"
+  },
+  "application/token-introspection+jwt": {
+    "source": "iana"
+  },
+  "application/toml": {
+    "source": "iana",
+    "compressible": true,
+    "extensions": ["toml"]
+  },
+  "application/trickle-ice-sdpfrag": {
+    "source": "iana"
+  },
+  "application/trig": {
+    "source": "iana",
+    "extensions": ["trig"]
+  },
+  "application/trust-chain+json": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/trust-mark+jwt": {
+    "source": "iana"
+  },
+  "application/trust-mark-delegation+jwt": {
+    "source": "iana"
+  },
+  "application/ttml+xml": {
+    "source": "iana",
+    "compressible": true,
+    "extensions": ["ttml"]
+  },
+  "application/tve-trigger": {
+    "source": "iana"
+  },
+  "application/tzif": {
+    "source": "iana"
+  },
+  "application/tzif-leap": {
+    "source": "iana"
+  },
+  "application/ubjson": {
+    "compressible": false,
+    "extensions": ["ubj"]
+  },
+  "application/uccs+cbor": {
+    "source": "iana"
+  },
+  "application/ujcs+json": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/ulpfec": {
+    "source": "iana"
+  },
+  "application/urc-grpsheet+xml": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/urc-ressheet+xml": {
+    "source": "iana",
+    "compressible": true,
+    "extensions": ["rsheet"]
+  },
+  "application/urc-targetdesc+xml": {
+    "source": "iana",
+    "compressible": true,
+    "extensions": ["td"]
+  },
+  "application/urc-uisocketdesc+xml": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/vc": {
+    "source": "iana"
+  },
+  "application/vc+cose": {
+    "source": "iana"
+  },
+  "application/vc+jwt": {
+    "source": "iana"
+  },
+  "application/vcard+json": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/vcard+xml": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/vemmi": {
+    "source": "iana"
+  },
+  "application/vividence.scriptfile": {
+    "source": "apache"
+  },
+  "application/vnd.1000minds.decision-model+xml": {
+    "source": "iana",
+    "compressible": true,
+    "extensions": ["1km"]
+  },
+  "application/vnd.1ob": {
+    "source": "iana"
+  },
+  "application/vnd.3gpp-prose+xml": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/vnd.3gpp-prose-pc3a+xml": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/vnd.3gpp-prose-pc3ach+xml": {
+    "source": "iana",
+    "compressible": true
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+  "application/vnd.3gpp-prose-pc3ch+xml": {
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+    "compressible": true
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+  "application/vnd.3gpp-prose-pc8+xml": {
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+    "compressible": true
+  },
+  "application/vnd.3gpp-v2x-local-service-information": {
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+  "application/vnd.3gpp.5gnas": {
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+  "application/vnd.3gpp.5gsa2x": {
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+  "application/vnd.3gpp.5gsa2x-local-service-information": {
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+  "application/vnd.3gpp.5gsv2x": {
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+  "application/vnd.3gpp.5gsv2x-local-service-information": {
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+  },
+  "application/vnd.3gpp.access-transfer-events+xml": {
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+    "compressible": true
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+  "application/vnd.3gpp.bsf+xml": {
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+    "compressible": true
+  },
+  "application/vnd.3gpp.crs+xml": {
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+    "compressible": true
+  },
+  "application/vnd.3gpp.current-location-discovery+xml": {
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+    "compressible": true
+  },
+  "application/vnd.3gpp.gmop+xml": {
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+    "compressible": true
+  },
+  "application/vnd.3gpp.gtpc": {
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+  },
+  "application/vnd.3gpp.interworking-data": {
+    "source": "iana"
+  },
+  "application/vnd.3gpp.lpp": {
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+  "application/vnd.3gpp.mc-signalling-ear": {
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+  },
+  "application/vnd.3gpp.mcdata-affiliation-command+xml": {
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+    "compressible": true
+  },
+  "application/vnd.3gpp.mcdata-info+xml": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/vnd.3gpp.mcdata-msgstore-ctrl-request+xml": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/vnd.3gpp.mcdata-payload": {
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+  },
+  "application/vnd.3gpp.mcdata-regroup+xml": {
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+    "compressible": true
+  },
+  "application/vnd.3gpp.mcdata-service-config+xml": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/vnd.3gpp.mcdata-signalling": {
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+  },
+  "application/vnd.3gpp.mcdata-ue-config+xml": {
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+    "compressible": true
+  },
+  "application/vnd.3gpp.mcdata-user-profile+xml": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/vnd.3gpp.mcptt-affiliation-command+xml": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/vnd.3gpp.mcptt-floor-request+xml": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/vnd.3gpp.mcptt-info+xml": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/vnd.3gpp.mcptt-location-info+xml": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/vnd.3gpp.mcptt-mbms-usage-info+xml": {
+    "source": "iana",
+    "compressible": true
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+  "application/vnd.3gpp.mcptt-regroup+xml": {
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+    "compressible": true
+  },
+  "application/vnd.3gpp.mcptt-service-config+xml": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/vnd.3gpp.mcptt-signed+xml": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/vnd.3gpp.mcptt-ue-config+xml": {
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+    "extensions": ["gnumeric"]
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+    "extensions": ["gtar"]
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+    "extensions": ["ipynb"]
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+    "extensions": ["jnlp"]
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+    "extensions": ["latex"]
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+    "extensions": ["run"]
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+    "extensions": ["lnk"]
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+    "extensions": ["wmd"]
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+    "extensions": ["wmz"]
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+    "extensions": ["xbap"]
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+    "extensions": ["mdb"]
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+    "extensions": ["obd"]
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+  "application/x-mscardfile": {
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+    "extensions": ["crd"]
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+    "extensions": ["clp"]
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+  "application/x-msdos-program": {
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+    "extensions": ["exe","dll","com","bat","msi"]
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+  "application/x-msmediaview": {
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+    "extensions": ["mvb","m13","m14"]
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+    "extensions": ["wmf","wmz","emf","emz"]
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+  "application/x-msmoney": {
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+    "extensions": ["mny"]
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+  "application/x-mspublisher": {
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+    "extensions": ["pub"]
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+    "extensions": ["scd"]
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+    "extensions": ["trm"]
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+    "extensions": ["wri"]
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+    "extensions": ["pac"]
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+    "extensions": ["pl","pm"]
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+    "extensions": ["p12","pfx"]
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+    "extensions": ["p7b","spc"]
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+  "application/x-pkcs7-certreqresp": {
+    "source": "apache",
+    "extensions": ["p7r"]
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+    "extensions": ["rar"]
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+    "extensions": ["rpm"]
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+    "extensions": ["ris"]
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+    "extensions": ["sea"]
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+  "application/x-sh": {
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+    "compressible": true,
+    "extensions": ["sh"]
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+    "extensions": ["shar"]
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+    "extensions": ["swf"]
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+    "extensions": ["xap"]
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+    "extensions": ["sit"]
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+    "extensions": ["gam"]
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+    "extensions": ["tar"]
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+    "extensions": ["webapp"]
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+    "extensions": ["der","crt","pem"]
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+    "extensions": ["xpi"]
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+    "extensions": ["z1","z2","z3","z4","z5","z6","z7","z8"]
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+    "extensions": ["xaml"]
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+    "extensions": ["xav"]
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+    "extensions": ["xca"]
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+    "extensions": ["xdf"]
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+    "extensions": ["xel"]
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+    "extensions": ["xhtml","xht"]
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+    "extensions": ["xlf"]
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+    "extensions": ["xpl"]
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+    "extensions": ["xsl","xslt"]
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+    "extensions": ["xspf"]
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+    "extensions": ["yin"]
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+    "extensions": ["zip"]
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+  "audio/mhas": {
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+  "audio/midi": {
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+    "extensions": ["mid","midi","kar","rmi"]
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+  "audio/midi-clip": {
+    "source": "iana"
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+  "audio/mobile-xmf": {
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+    "extensions": ["mxmf"]
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+    "extensions": ["mp3"]
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+    "extensions": ["m4a","mp4a","m4b"]
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+    "extensions": ["mpga","mp2","mp2a","mp3","m2a","m3a"]
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+    "extensions": ["oga","ogg","spx","opus"]
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+    "extensions": ["eol"]
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+  "video/vnd.iptvforum.2dparityfec-2005": {
+    "source": "iana"
+  },
+  "video/vnd.iptvforum.ttsavc": {
+    "source": "iana"
+  },
+  "video/vnd.iptvforum.ttsmpeg2": {
+    "source": "iana"
+  },
+  "video/vnd.motorola.video": {
+    "source": "iana"
+  },
+  "video/vnd.motorola.videop": {
+    "source": "iana"
+  },
+  "video/vnd.mpegurl": {
+    "source": "iana",
+    "extensions": ["mxu","m4u"]
+  },
+  "video/vnd.ms-playready.media.pyv": {
+    "source": "iana",
+    "extensions": ["pyv"]
+  },
+  "video/vnd.nokia.interleaved-multimedia": {
+    "source": "iana"
+  },
+  "video/vnd.nokia.mp4vr": {
+    "source": "iana"
+  },
+  "video/vnd.nokia.videovoip": {
+    "source": "iana"
+  },
+  "video/vnd.objectvideo": {
+    "source": "iana"
+  },
+  "video/vnd.planar": {
+    "source": "iana"
+  },
+  "video/vnd.radgamettools.bink": {
+    "source": "iana"
+  },
+  "video/vnd.radgamettools.smacker": {
+    "source": "apache"
+  },
+  "video/vnd.sealed.mpeg1": {
+    "source": "iana"
+  },
+  "video/vnd.sealed.mpeg4": {
+    "source": "iana"
+  },
+  "video/vnd.sealed.swf": {
+    "source": "iana"
+  },
+  "video/vnd.sealedmedia.softseal.mov": {
+    "source": "iana"
+  },
+  "video/vnd.uvvu.mp4": {
+    "source": "iana",
+    "extensions": ["uvu","uvvu"]
+  },
+  "video/vnd.vivo": {
+    "source": "iana",
+    "extensions": ["viv"]
+  },
+  "video/vnd.youtube.yt": {
+    "source": "iana"
+  },
+  "video/vp8": {
+    "source": "iana"
+  },
+  "video/vp9": {
+    "source": "iana"
+  },
+  "video/webm": {
+    "source": "apache",
+    "compressible": false,
+    "extensions": ["webm"]
+  },
+  "video/x-f4v": {
+    "source": "apache",
+    "extensions": ["f4v"]
+  },
+  "video/x-fli": {
+    "source": "apache",
+    "extensions": ["fli"]
+  },
+  "video/x-flv": {
+    "source": "apache",
+    "compressible": false,
+    "extensions": ["flv"]
+  },
+  "video/x-m4v": {
+    "source": "apache",
+    "extensions": ["m4v"]
+  },
+  "video/x-matroska": {
+    "source": "apache",
+    "compressible": false,
+    "extensions": ["mkv","mk3d","mks"]
+  },
+  "video/x-mng": {
+    "source": "apache",
+    "extensions": ["mng"]
+  },
+  "video/x-ms-asf": {
+    "source": "apache",
+    "extensions": ["asf","asx"]
+  },
+  "video/x-ms-vob": {
+    "source": "apache",
+    "extensions": ["vob"]
+  },
+  "video/x-ms-wm": {
+    "source": "apache",
+    "extensions": ["wm"]
+  },
+  "video/x-ms-wmv": {
+    "source": "apache",
+    "compressible": false,
+    "extensions": ["wmv"]
+  },
+  "video/x-ms-wmx": {
+    "source": "apache",
+    "extensions": ["wmx"]
+  },
+  "video/x-ms-wvx": {
+    "source": "apache",
+    "extensions": ["wvx"]
+  },
+  "video/x-msvideo": {
+    "source": "apache",
+    "extensions": ["avi"]
+  },
+  "video/x-sgi-movie": {
+    "source": "apache",
+    "extensions": ["movie"]
+  },
+  "video/x-smv": {
+    "source": "apache",
+    "extensions": ["smv"]
+  },
+  "x-conference/x-cooltalk": {
+    "source": "apache",
+    "extensions": ["ice"]
+  },
+  "x-shader/x-fragment": {
+    "compressible": true
+  },
+  "x-shader/x-vertex": {
+    "compressible": true
+  }
+}
diff --git a/backend/node_modules/mime-db/index.js b/backend/node_modules/mime-db/index.js
new file mode 100644
index 0000000..ec2be30
--- /dev/null
+++ b/backend/node_modules/mime-db/index.js
@@ -0,0 +1,12 @@
+/*!
+ * mime-db
+ * Copyright(c) 2014 Jonathan Ong
+ * Copyright(c) 2015-2022 Douglas Christopher Wilson
+ * MIT Licensed
+ */
+
+/**
+ * Module exports.
+ */
+
+module.exports = require('./db.json')
diff --git a/backend/node_modules/mime-db/package.json b/backend/node_modules/mime-db/package.json
new file mode 100644
index 0000000..289a370
--- /dev/null
+++ b/backend/node_modules/mime-db/package.json
@@ -0,0 +1,56 @@
+{
+  "name": "mime-db",
+  "description": "Media Type Database",
+  "version": "1.54.0",
+  "contributors": [
+    "Douglas Christopher Wilson <doug@somethingdoug.com>",
+    "Jonathan Ong <me@jongleberry.com> (http://jongleberry.com)",
+    "Robert Kieffer <robert@broofa.com> (http://github.com/broofa)"
+  ],
+  "license": "MIT",
+  "keywords": [
+    "mime",
+    "db",
+    "type",
+    "types",
+    "database",
+    "charset",
+    "charsets"
+  ],
+  "repository": "jshttp/mime-db",
+  "devDependencies": {
+    "csv-parse": "4.16.3",
+    "eslint": "8.32.0",
+    "eslint-config-standard": "15.0.1",
+    "eslint-plugin-import": "2.27.5",
+    "eslint-plugin-markdown": "3.0.0",
+    "eslint-plugin-node": "11.1.0",
+    "eslint-plugin-promise": "6.1.1",
+    "eslint-plugin-standard": "4.1.0",
+    "media-typer": "1.1.0",
+    "mocha": "10.2.0",
+    "nyc": "15.1.0",
+    "stream-to-array": "2.3.0",
+    "undici": "7.1.0"
+  },
+  "files": [
+    "HISTORY.md",
+    "LICENSE",
+    "README.md",
+    "db.json",
+    "index.js"
+  ],
+  "engines": {
+    "node": ">= 0.6"
+  },
+  "scripts": {
+    "build": "node scripts/build",
+    "fetch": "node scripts/fetch-apache && node scripts/fetch-iana && node scripts/fetch-nginx",
+    "lint": "eslint .",
+    "test": "mocha --reporter spec --check-leaks test/",
+    "test-ci": "nyc --reporter=lcovonly --reporter=text npm test",
+    "test-cov": "nyc --reporter=html --reporter=text npm test",
+    "update": "npm run fetch && npm run build",
+    "version": "node scripts/version-history.js && git add HISTORY.md"
+  }
+}
diff --git a/backend/node_modules/mime-types/HISTORY.md b/backend/node_modules/mime-types/HISTORY.md
new file mode 100644
index 0000000..18473e4
--- /dev/null
+++ b/backend/node_modules/mime-types/HISTORY.md
@@ -0,0 +1,421 @@
+3.0.1 / 2025-03-26
+===================
+
+* deps: mime-db@1.54.0
+
+3.0.0 / 2024-08-31
+===================
+
+* Drop support for node <18
+* deps: mime-db@1.53.0
+* resolve extension conflicts with mime-score (#119)
+  * asc -> application/pgp-signature is now application/pgp-keys
+  * mpp -> application/vnd.ms-project is now application/dash-patch+xml
+  * ac -> application/vnd.nokia.n-gage.ac+xml is now application/pkix-attr-cert
+  * bdoc -> application/x-bdoc is now application/bdoc
+  * wmz -> application/x-msmetafile is now application/x-ms-wmz
+  * xsl -> application/xslt+xml is now application/xml
+  * wav -> audio/wave is now audio/wav
+  * rtf -> text/rtf is now application/rtf
+  * xml -> text/xml is now application/xml
+  * mp4 -> video/mp4 is now application/mp4
+  * mpg4 -> video/mp4 is now application/mp4
+
+
+2.1.35 / 2022-03-12
+===================
+
+  * deps: mime-db@1.52.0
+    - Add extensions from IANA for more `image/*` types
+    - Add extension `.asc` to `application/pgp-keys`
+    - Add extensions to various XML types
+    - Add new upstream MIME types
+
+2.1.34 / 2021-11-08
+===================
+
+  * deps: mime-db@1.51.0
+    - Add new upstream MIME types
+
+2.1.33 / 2021-10-01
+===================
+
+  * deps: mime-db@1.50.0
+    - Add deprecated iWorks mime types and extensions
+    - Add new upstream MIME types
+
+2.1.32 / 2021-07-27
+===================
+
+  * deps: mime-db@1.49.0
+    - Add extension `.trig` to `application/trig`
+    - Add new upstream MIME types
+
+2.1.31 / 2021-06-01
+===================
+
+  * deps: mime-db@1.48.0
+    - Add extension `.mvt` to `application/vnd.mapbox-vector-tile`
+    - Add new upstream MIME types
+
+2.1.30 / 2021-04-02
+===================
+
+  * deps: mime-db@1.47.0
+    - Add extension `.amr` to `audio/amr`
+    - Remove ambigious extensions from IANA for `application/*+xml` types
+    - Update primary extension to `.es` for `application/ecmascript`
+
+2.1.29 / 2021-02-17
+===================
+
+  * deps: mime-db@1.46.0
+    - Add extension `.amr` to `audio/amr`
+    - Add extension `.m4s` to `video/iso.segment`
+    - Add extension `.opus` to `audio/ogg`
+    - Add new upstream MIME types
+
+2.1.28 / 2021-01-01
+===================
+
+  * deps: mime-db@1.45.0
+    - Add `application/ubjson` with extension `.ubj`
+    - Add `image/avif` with extension `.avif`
+    - Add `image/ktx2` with extension `.ktx2`
+    - Add extension `.dbf` to `application/vnd.dbf`
+    - Add extension `.rar` to `application/vnd.rar`
+    - Add extension `.td` to `application/urc-targetdesc+xml`
+    - Add new upstream MIME types
+    - Fix extension of `application/vnd.apple.keynote` to be `.key`
+
+2.1.27 / 2020-04-23
+===================
+
+  * deps: mime-db@1.44.0
+    - Add charsets from IANA
+    - Add extension `.cjs` to `application/node`
+    - Add new upstream MIME types
+
+2.1.26 / 2020-01-05
+===================
+
+  * deps: mime-db@1.43.0
+    - Add `application/x-keepass2` with extension `.kdbx`
+    - Add extension `.mxmf` to `audio/mobile-xmf`
+    - Add extensions from IANA for `application/*+xml` types
+    - Add new upstream MIME types
+
+2.1.25 / 2019-11-12
+===================
+
+  * deps: mime-db@1.42.0
+    - Add new upstream MIME types
+    - Add `application/toml` with extension `.toml`
+    - Add `image/vnd.ms-dds` with extension `.dds`
+
+2.1.24 / 2019-04-20
+===================
+
+  * deps: mime-db@1.40.0
+    - Add extensions from IANA for `model/*` types
+    - Add `text/mdx` with extension `.mdx`
+
+2.1.23 / 2019-04-17
+===================
+
+  * deps: mime-db@~1.39.0
+    - Add extensions `.siv` and `.sieve` to `application/sieve`
+    - Add new upstream MIME types
+
+2.1.22 / 2019-02-14
+===================
+
+  * deps: mime-db@~1.38.0
+    - Add extension `.nq` to `application/n-quads`
+    - Add extension `.nt` to `application/n-triples`
+    - Add new upstream MIME types
+
+2.1.21 / 2018-10-19
+===================
+
+  * deps: mime-db@~1.37.0
+    - Add extensions to HEIC image types
+    - Add new upstream MIME types
+
+2.1.20 / 2018-08-26
+===================
+
+  * deps: mime-db@~1.36.0
+    - Add Apple file extensions from IANA
+    - Add extensions from IANA for `image/*` types
+    - Add new upstream MIME types
+
+2.1.19 / 2018-07-17
+===================
+
+  * deps: mime-db@~1.35.0
+    - Add extension `.csl` to `application/vnd.citationstyles.style+xml`
+    - Add extension `.es` to `application/ecmascript`
+    - Add extension `.owl` to `application/rdf+xml`
+    - Add new upstream MIME types
+    - Add UTF-8 as default charset for `text/turtle`
+
+2.1.18 / 2018-02-16
+===================
+
+  * deps: mime-db@~1.33.0
+    - Add `application/raml+yaml` with extension `.raml`
+    - Add `application/wasm` with extension `.wasm`
+    - Add `text/shex` with extension `.shex`
+    - Add extensions for JPEG-2000 images
+    - Add extensions from IANA for `message/*` types
+    - Add new upstream MIME types
+    - Update font MIME types
+    - Update `text/hjson` to registered `application/hjson`
+
+2.1.17 / 2017-09-01
+===================
+
+  * deps: mime-db@~1.30.0
+    - Add `application/vnd.ms-outlook`
+    - Add `application/x-arj`
+    - Add extension `.mjs` to `application/javascript`
+    - Add glTF types and extensions
+    - Add new upstream MIME types
+    - Add `text/x-org`
+    - Add VirtualBox MIME types
+    - Fix `source` records for `video/*` types that are IANA
+    - Update `font/opentype` to registered `font/otf`
+
+2.1.16 / 2017-07-24
+===================
+
+  * deps: mime-db@~1.29.0
+    - Add `application/fido.trusted-apps+json`
+    - Add extension `.wadl` to `application/vnd.sun.wadl+xml`
+    - Add extension `.gz` to `application/gzip`
+    - Add new upstream MIME types
+    - Update extensions `.md` and `.markdown` to be `text/markdown`
+
+2.1.15 / 2017-03-23
+===================
+
+  * deps: mime-db@~1.27.0
+    - Add new mime types
+    - Add `image/apng`
+
+2.1.14 / 2017-01-14
+===================
+
+  * deps: mime-db@~1.26.0
+    - Add new mime types
+
+2.1.13 / 2016-11-18
+===================
+
+  * deps: mime-db@~1.25.0
+    - Add new mime types
+
+2.1.12 / 2016-09-18
+===================
+
+  * deps: mime-db@~1.24.0
+    - Add new mime types
+    - Add `audio/mp3`
+
+2.1.11 / 2016-05-01
+===================
+
+  * deps: mime-db@~1.23.0
+    - Add new mime types
+
+2.1.10 / 2016-02-15
+===================
+
+  * deps: mime-db@~1.22.0
+    - Add new mime types
+    - Fix extension of `application/dash+xml`
+    - Update primary extension for `audio/mp4`
+
+2.1.9 / 2016-01-06
+==================
+
+  * deps: mime-db@~1.21.0
+    - Add new mime types
+
+2.1.8 / 2015-11-30
+==================
+
+  * deps: mime-db@~1.20.0
+    - Add new mime types
+
+2.1.7 / 2015-09-20
+==================
+
+  * deps: mime-db@~1.19.0
+    - Add new mime types
+
+2.1.6 / 2015-09-03
+==================
+
+  * deps: mime-db@~1.18.0
+    - Add new mime types
+
+2.1.5 / 2015-08-20
+==================
+
+  * deps: mime-db@~1.17.0
+    - Add new mime types
+
+2.1.4 / 2015-07-30
+==================
+
+  * deps: mime-db@~1.16.0
+    - Add new mime types
+
+2.1.3 / 2015-07-13
+==================
+
+  * deps: mime-db@~1.15.0
+    - Add new mime types
+
+2.1.2 / 2015-06-25
+==================
+
+  * deps: mime-db@~1.14.0
+    - Add new mime types
+
+2.1.1 / 2015-06-08
+==================
+
+  * perf: fix deopt during mapping
+
+2.1.0 / 2015-06-07
+==================
+
+  * Fix incorrectly treating extension-less file name as extension
+    - i.e. `'path/to/json'` will no longer return `application/json`
+  * Fix `.charset(type)` to accept parameters
+  * Fix `.charset(type)` to match case-insensitive
+  * Improve generation of extension to MIME mapping
+  * Refactor internals for readability and no argument reassignment
+  * Prefer `application/*` MIME types from the same source
+  * Prefer any type over `application/octet-stream`
+  * deps: mime-db@~1.13.0
+    - Add nginx as a source
+    - Add new mime types
+
+2.0.14 / 2015-06-06
+===================
+
+  * deps: mime-db@~1.12.0
+    - Add new mime types
+
+2.0.13 / 2015-05-31
+===================
+
+  * deps: mime-db@~1.11.0
+    - Add new mime types
+
+2.0.12 / 2015-05-19
+===================
+
+  * deps: mime-db@~1.10.0
+    - Add new mime types
+
+2.0.11 / 2015-05-05
+===================
+
+  * deps: mime-db@~1.9.1
+    - Add new mime types
+
+2.0.10 / 2015-03-13
+===================
+
+  * deps: mime-db@~1.8.0
+    - Add new mime types
+
+2.0.9 / 2015-02-09
+==================
+
+  * deps: mime-db@~1.7.0
+    - Add new mime types
+    - Community extensions ownership transferred from `node-mime`
+
+2.0.8 / 2015-01-29
+==================
+
+  * deps: mime-db@~1.6.0
+    - Add new mime types
+
+2.0.7 / 2014-12-30
+==================
+
+  * deps: mime-db@~1.5.0
+    - Add new mime types
+    - Fix various invalid MIME type entries
+
+2.0.6 / 2014-12-30
+==================
+
+  * deps: mime-db@~1.4.0
+    - Add new mime types
+    - Fix various invalid MIME type entries
+    - Remove example template MIME types
+
+2.0.5 / 2014-12-29
+==================
+
+  * deps: mime-db@~1.3.1
+    - Fix missing extensions
+
+2.0.4 / 2014-12-10
+==================
+
+  * deps: mime-db@~1.3.0
+    - Add new mime types
+
+2.0.3 / 2014-11-09
+==================
+
+  * deps: mime-db@~1.2.0
+    - Add new mime types
+
+2.0.2 / 2014-09-28
+==================
+
+  * deps: mime-db@~1.1.0
+    - Add new mime types
+    - Update charsets
+
+2.0.1 / 2014-09-07
+==================
+
+  * Support Node.js 0.6
+
+2.0.0 / 2014-09-02
+==================
+
+  * Use `mime-db`
+  * Remove `.define()`
+
+1.0.2 / 2014-08-04
+==================
+
+  * Set charset=utf-8 for `text/javascript`
+
+1.0.1 / 2014-06-24
+==================
+
+  * Add `text/jsx` type
+
+1.0.0 / 2014-05-12
+==================
+
+  * Return `false` for unknown types
+  * Set charset=utf-8 for `application/json`
+
+0.1.0 / 2014-05-02
+==================
+
+  * Initial release
diff --git a/backend/node_modules/mime-types/LICENSE b/backend/node_modules/mime-types/LICENSE
new file mode 100644
index 0000000..0616607
--- /dev/null
+++ b/backend/node_modules/mime-types/LICENSE
@@ -0,0 +1,23 @@
+(The MIT License)
+
+Copyright (c) 2014 Jonathan Ong <me@jongleberry.com>
+Copyright (c) 2015 Douglas Christopher Wilson <doug@somethingdoug.com>
+
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of this software and associated documentation files (the
+'Software'), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sublicense, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to
+the following conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
diff --git a/backend/node_modules/mime-types/README.md b/backend/node_modules/mime-types/README.md
new file mode 100644
index 0000000..222d2b5
--- /dev/null
+++ b/backend/node_modules/mime-types/README.md
@@ -0,0 +1,126 @@
+# mime-types
+
+[![NPM Version][npm-version-image]][npm-url]
+[![NPM Downloads][npm-downloads-image]][npm-url]
+[![Node.js Version][node-version-image]][node-version-url]
+[![Build Status][ci-image]][ci-url]
+[![Test Coverage][coveralls-image]][coveralls-url]
+
+The ultimate javascript content-type utility.
+
+Similar to [the `mime@1.x` module](https://www.npmjs.com/package/mime), except:
+
+- __No fallbacks.__ Instead of naively returning the first available type,
+  `mime-types` simply returns `false`, so do
+  `var type = mime.lookup('unrecognized') || 'application/octet-stream'`.
+- No `new Mime()` business, so you could do `var lookup = require('mime-types').lookup`.
+- No `.define()` functionality
+- Bug fixes for `.lookup(path)`
+
+Otherwise, the API is compatible with `mime` 1.x.
+
+## Install
+
+This is a [Node.js](https://nodejs.org/en/) module available through the
+[npm registry](https://www.npmjs.com/). Installation is done using the
+[`npm install` command](https://docs.npmjs.com/getting-started/installing-npm-packages-locally):
+
+```sh
+$ npm install mime-types
+```
+
+## Note on MIME Type Data and Semver
+
+This package considers the programmatic api as the semver compatibility. Additionally, the package which provides the MIME data
+for this package (`mime-db`) *also* considers it's programmatic api as the semver contract. This means the MIME type resolution is *not* considered
+in the semver bumps.
+
+In the past the version of `mime-db` was pinned to give two decision points when adopting MIME data changes. This is no longer true. We still update the
+`mime-db` package here as a `minor` release when necessary, but will use a `^` range going forward. This means that if you want to pin your `mime-db` data
+you will need to do it in your application. While this expectation was not set in docs until now, it is how the pacakge operated, so we do not feel this is
+a breaking change.
+
+If you wish to pin your `mime-db` version you can do that with overrides via your package manager of choice. See their documentation for how to correctly configure that.
+
+## Adding Types
+
+All mime types are based on [mime-db](https://www.npmjs.com/package/mime-db),
+so open a PR there if you'd like to add mime types.
+
+## API
+
+```js
+var mime = require('mime-types')
+```
+
+All functions return `false` if input is invalid or not found.
+
+### mime.lookup(path)
+
+Lookup the content-type associated with a file.
+
+```js
+mime.lookup('json') // 'application/json'
+mime.lookup('.md') // 'text/markdown'
+mime.lookup('file.html') // 'text/html'
+mime.lookup('folder/file.js') // 'application/javascript'
+mime.lookup('folder/.htaccess') // false
+
+mime.lookup('cats') // false
+```
+
+### mime.contentType(type)
+
+Create a full content-type header given a content-type or extension.
+When given an extension, `mime.lookup` is used to get the matching
+content-type, otherwise the given content-type is used. Then if the
+content-type does not already have a `charset` parameter, `mime.charset`
+is used to get the default charset and add to the returned content-type.
+
+```js
+mime.contentType('markdown') // 'text/x-markdown; charset=utf-8'
+mime.contentType('file.json') // 'application/json; charset=utf-8'
+mime.contentType('text/html') // 'text/html; charset=utf-8'
+mime.contentType('text/html; charset=iso-8859-1') // 'text/html; charset=iso-8859-1'
+
+// from a full path
+mime.contentType(path.extname('/path/to/file.json')) // 'application/json; charset=utf-8'
+```
+
+### mime.extension(type)
+
+Get the default extension for a content-type.
+
+```js
+mime.extension('application/octet-stream') // 'bin'
+```
+
+### mime.charset(type)
+
+Lookup the implied default charset of a content-type.
+
+```js
+mime.charset('text/markdown') // 'UTF-8'
+```
+
+### var type = mime.types[extension]
+
+A map of content-types by extension.
+
+### [extensions...] = mime.extensions[type]
+
+A map of extensions by content-type.
+
+## License
+
+[MIT](LICENSE)
+
+[ci-image]: https://badgen.net/github/checks/jshttp/mime-types/master?label=ci
+[ci-url]: https://github.com/jshttp/mime-types/actions/workflows/ci.yml
+[coveralls-image]: https://badgen.net/coveralls/c/github/jshttp/mime-types/master
+[coveralls-url]: https://coveralls.io/r/jshttp/mime-types?branch=master
+[node-version-image]: https://badgen.net/npm/node/mime-types
+[node-version-url]: https://nodejs.org/en/download
+[npm-downloads-image]: https://badgen.net/npm/dm/mime-types
+[npm-url]: https://npmjs.org/package/mime-types
+[npm-version-image]: https://badgen.net/npm/v/mime-types
diff --git a/backend/node_modules/mime-types/index.js b/backend/node_modules/mime-types/index.js
new file mode 100644
index 0000000..c348cb6
--- /dev/null
+++ b/backend/node_modules/mime-types/index.js
@@ -0,0 +1,211 @@
+/*!
+ * mime-types
+ * Copyright(c) 2014 Jonathan Ong
+ * Copyright(c) 2015 Douglas Christopher Wilson
+ * MIT Licensed
+ */
+
+'use strict'
+
+/**
+ * Module dependencies.
+ * @private
+ */
+
+var db = require('mime-db')
+var extname = require('path').extname
+var mimeScore = require('./mimeScore')
+
+/**
+ * Module variables.
+ * @private
+ */
+
+var EXTRACT_TYPE_REGEXP = /^\s*([^;\s]*)(?:;|\s|$)/
+var TEXT_TYPE_REGEXP = /^text\//i
+
+/**
+ * Module exports.
+ * @public
+ */
+
+exports.charset = charset
+exports.charsets = { lookup: charset }
+exports.contentType = contentType
+exports.extension = extension
+exports.extensions = Object.create(null)
+exports.lookup = lookup
+exports.types = Object.create(null)
+exports._extensionConflicts = []
+
+// Populate the extensions/types maps
+populateMaps(exports.extensions, exports.types)
+
+/**
+ * Get the default charset for a MIME type.
+ *
+ * @param {string} type
+ * @return {boolean|string}
+ */
+
+function charset (type) {
+  if (!type || typeof type !== 'string') {
+    return false
+  }
+
+  // TODO: use media-typer
+  var match = EXTRACT_TYPE_REGEXP.exec(type)
+  var mime = match && db[match[1].toLowerCase()]
+
+  if (mime && mime.charset) {
+    return mime.charset
+  }
+
+  // default text/* to utf-8
+  if (match && TEXT_TYPE_REGEXP.test(match[1])) {
+    return 'UTF-8'
+  }
+
+  return false
+}
+
+/**
+ * Create a full Content-Type header given a MIME type or extension.
+ *
+ * @param {string} str
+ * @return {boolean|string}
+ */
+
+function contentType (str) {
+  // TODO: should this even be in this module?
+  if (!str || typeof str !== 'string') {
+    return false
+  }
+
+  var mime = str.indexOf('/') === -1 ? exports.lookup(str) : str
+
+  if (!mime) {
+    return false
+  }
+
+  // TODO: use content-type or other module
+  if (mime.indexOf('charset') === -1) {
+    var charset = exports.charset(mime)
+    if (charset) mime += '; charset=' + charset.toLowerCase()
+  }
+
+  return mime
+}
+
+/**
+ * Get the default extension for a MIME type.
+ *
+ * @param {string} type
+ * @return {boolean|string}
+ */
+
+function extension (type) {
+  if (!type || typeof type !== 'string') {
+    return false
+  }
+
+  // TODO: use media-typer
+  var match = EXTRACT_TYPE_REGEXP.exec(type)
+
+  // get extensions
+  var exts = match && exports.extensions[match[1].toLowerCase()]
+
+  if (!exts || !exts.length) {
+    return false
+  }
+
+  return exts[0]
+}
+
+/**
+ * Lookup the MIME type for a file path/extension.
+ *
+ * @param {string} path
+ * @return {boolean|string}
+ */
+
+function lookup (path) {
+  if (!path || typeof path !== 'string') {
+    return false
+  }
+
+  // get the extension ("ext" or ".ext" or full path)
+  var extension = extname('x.' + path)
+    .toLowerCase()
+    .slice(1)
+
+  if (!extension) {
+    return false
+  }
+
+  return exports.types[extension] || false
+}
+
+/**
+ * Populate the extensions and types maps.
+ * @private
+ */
+
+function populateMaps (extensions, types) {
+  Object.keys(db).forEach(function forEachMimeType (type) {
+    var mime = db[type]
+    var exts = mime.extensions
+
+    if (!exts || !exts.length) {
+      return
+    }
+
+    // mime -> extensions
+    extensions[type] = exts
+
+    // extension -> mime
+    for (var i = 0; i < exts.length; i++) {
+      var extension = exts[i]
+      types[extension] = _preferredType(extension, types[extension], type)
+
+      // DELETE (eventually): Capture extension->type maps that change as a
+      // result of switching to mime-score.  This is just to help make reviewing
+      // PR #119 easier, and can be removed once that PR is approved.
+      const legacyType = _preferredTypeLegacy(
+        extension,
+        types[extension],
+        type
+      )
+      if (legacyType !== types[extension]) {
+        exports._extensionConflicts.push([extension, legacyType, types[extension]])
+      }
+    }
+  })
+}
+
+// Resolve type conflict using mime-score
+function _preferredType (ext, type0, type1) {
+  var score0 = type0 ? mimeScore(type0, db[type0].source) : 0
+  var score1 = type1 ? mimeScore(type1, db[type1].source) : 0
+
+  return score0 > score1 ? type0 : type1
+}
+
+// Resolve type conflict using pre-mime-score logic
+function _preferredTypeLegacy (ext, type0, type1) {
+  var SOURCE_RANK = ['nginx', 'apache', undefined, 'iana']
+
+  var score0 = type0 ? SOURCE_RANK.indexOf(db[type0].source) : 0
+  var score1 = type1 ? SOURCE_RANK.indexOf(db[type1].source) : 0
+
+  if (
+    exports.types[extension] !== 'application/octet-stream' &&
+    (score0 > score1 ||
+      (score0 === score1 &&
+        exports.types[extension]?.slice(0, 12) === 'application/'))
+  ) {
+    return type0
+  }
+
+  return score0 > score1 ? type0 : type1
+}
diff --git a/backend/node_modules/mime-types/mimeScore.js b/backend/node_modules/mime-types/mimeScore.js
new file mode 100644
index 0000000..e2ecc66
--- /dev/null
+++ b/backend/node_modules/mime-types/mimeScore.js
@@ -0,0 +1,52 @@
+// 'mime-score' back-ported to CommonJS
+
+// Score RFC facets (see https://tools.ietf.org/html/rfc6838#section-3)
+var FACET_SCORES = {
+  'prs.': 100,
+  'x-': 200,
+  'x.': 300,
+  'vnd.': 400,
+  default: 900
+}
+
+// Score mime source (Logic originally from `jshttp/mime-types` module)
+var SOURCE_SCORES = {
+  nginx: 10,
+  apache: 20,
+  iana: 40,
+  default: 30 // definitions added by `jshttp/mime-db` project?
+}
+
+var TYPE_SCORES = {
+  // prefer application/xml over text/xml
+  // prefer application/rtf over text/rtf
+  application: 1,
+
+  // prefer font/woff over application/font-woff
+  font: 2,
+
+  default: 0
+}
+
+/**
+ * Get each component of the score for a mime type.  The sum of these is the
+ * total score.  The higher the score, the more "official" the type.
+ */
+module.exports = function mimeScore (mimeType, source = 'default') {
+  if (mimeType === 'application/octet-stream') {
+    return 0
+  }
+
+  const [type, subtype] = mimeType.split('/')
+
+  const facet = subtype.replace(/(\.|x-).*/, '$1')
+
+  const facetScore = FACET_SCORES[facet] || FACET_SCORES.default
+  const sourceScore = SOURCE_SCORES[source] || SOURCE_SCORES.default
+  const typeScore = TYPE_SCORES[type] || TYPE_SCORES.default
+
+  // All else being equal prefer shorter types
+  const lengthScore = 1 - mimeType.length / 100
+
+  return facetScore + sourceScore + typeScore + lengthScore
+}
diff --git a/backend/node_modules/mime-types/package.json b/backend/node_modules/mime-types/package.json
new file mode 100644
index 0000000..79481ae
--- /dev/null
+++ b/backend/node_modules/mime-types/package.json
@@ -0,0 +1,45 @@
+{
+  "name": "mime-types",
+  "description": "The ultimate javascript content-type utility.",
+  "version": "3.0.1",
+  "contributors": [
+    "Douglas Christopher Wilson <doug@somethingdoug.com>",
+    "Jeremiah Senkpiel <fishrock123@rocketmail.com> (https://searchbeam.jit.su)",
+    "Jonathan Ong <me@jongleberry.com> (http://jongleberry.com)"
+  ],
+  "license": "MIT",
+  "keywords": [
+    "mime",
+    "types"
+  ],
+  "repository": "jshttp/mime-types",
+  "dependencies": {
+    "mime-db": "^1.54.0"
+  },
+  "devDependencies": {
+    "eslint": "8.33.0",
+    "eslint-config-standard": "14.1.1",
+    "eslint-plugin-import": "2.27.5",
+    "eslint-plugin-markdown": "3.0.0",
+    "eslint-plugin-node": "11.1.0",
+    "eslint-plugin-promise": "6.1.1",
+    "eslint-plugin-standard": "4.1.0",
+    "mocha": "10.2.0",
+    "nyc": "15.1.0"
+  },
+  "files": [
+    "HISTORY.md",
+    "LICENSE",
+    "index.js",
+    "mimeScore.js"
+  ],
+  "engines": {
+    "node": ">= 0.6"
+  },
+  "scripts": {
+    "lint": "eslint .",
+    "test": "mocha --reporter spec test/test.js",
+    "test-ci": "nyc --reporter=lcov --reporter=text npm test",
+    "test-cov": "nyc --reporter=html --reporter=text npm test"
+  }
+}
diff --git a/backend/node_modules/ms/index.js b/backend/node_modules/ms/index.js
new file mode 100644
index 0000000..ea734fb
--- /dev/null
+++ b/backend/node_modules/ms/index.js
@@ -0,0 +1,162 @@
+/**
+ * Helpers.
+ */
+
+var s = 1000;
+var m = s * 60;
+var h = m * 60;
+var d = h * 24;
+var w = d * 7;
+var y = d * 365.25;
+
+/**
+ * Parse or format the given `val`.
+ *
+ * Options:
+ *
+ *  - `long` verbose formatting [false]
+ *
+ * @param {String|Number} val
+ * @param {Object} [options]
+ * @throws {Error} throw an error if val is not a non-empty string or a number
+ * @return {String|Number}
+ * @api public
+ */
+
+module.exports = function (val, options) {
+  options = options || {};
+  var type = typeof val;
+  if (type === 'string' && val.length > 0) {
+    return parse(val);
+  } else if (type === 'number' && isFinite(val)) {
+    return options.long ? fmtLong(val) : fmtShort(val);
+  }
+  throw new Error(
+    'val is not a non-empty string or a valid number. val=' +
+      JSON.stringify(val)
+  );
+};
+
+/**
+ * Parse the given `str` and return milliseconds.
+ *
+ * @param {String} str
+ * @return {Number}
+ * @api private
+ */
+
+function parse(str) {
+  str = String(str);
+  if (str.length > 100) {
+    return;
+  }
+  var match = /^(-?(?:\d+)?\.?\d+) *(milliseconds?|msecs?|ms|seconds?|secs?|s|minutes?|mins?|m|hours?|hrs?|h|days?|d|weeks?|w|years?|yrs?|y)?$/i.exec(
+    str
+  );
+  if (!match) {
+    return;
+  }
+  var n = parseFloat(match[1]);
+  var type = (match[2] || 'ms').toLowerCase();
+  switch (type) {
+    case 'years':
+    case 'year':
+    case 'yrs':
+    case 'yr':
+    case 'y':
+      return n * y;
+    case 'weeks':
+    case 'week':
+    case 'w':
+      return n * w;
+    case 'days':
+    case 'day':
+    case 'd':
+      return n * d;
+    case 'hours':
+    case 'hour':
+    case 'hrs':
+    case 'hr':
+    case 'h':
+      return n * h;
+    case 'minutes':
+    case 'minute':
+    case 'mins':
+    case 'min':
+    case 'm':
+      return n * m;
+    case 'seconds':
+    case 'second':
+    case 'secs':
+    case 'sec':
+    case 's':
+      return n * s;
+    case 'milliseconds':
+    case 'millisecond':
+    case 'msecs':
+    case 'msec':
+    case 'ms':
+      return n;
+    default:
+      return undefined;
+  }
+}
+
+/**
+ * Short format for `ms`.
+ *
+ * @param {Number} ms
+ * @return {String}
+ * @api private
+ */
+
+function fmtShort(ms) {
+  var msAbs = Math.abs(ms);
+  if (msAbs >= d) {
+    return Math.round(ms / d) + 'd';
+  }
+  if (msAbs >= h) {
+    return Math.round(ms / h) + 'h';
+  }
+  if (msAbs >= m) {
+    return Math.round(ms / m) + 'm';
+  }
+  if (msAbs >= s) {
+    return Math.round(ms / s) + 's';
+  }
+  return ms + 'ms';
+}
+
+/**
+ * Long format for `ms`.
+ *
+ * @param {Number} ms
+ * @return {String}
+ * @api private
+ */
+
+function fmtLong(ms) {
+  var msAbs = Math.abs(ms);
+  if (msAbs >= d) {
+    return plural(ms, msAbs, d, 'day');
+  }
+  if (msAbs >= h) {
+    return plural(ms, msAbs, h, 'hour');
+  }
+  if (msAbs >= m) {
+    return plural(ms, msAbs, m, 'minute');
+  }
+  if (msAbs >= s) {
+    return plural(ms, msAbs, s, 'second');
+  }
+  return ms + ' ms';
+}
+
+/**
+ * Pluralization helper.
+ */
+
+function plural(ms, msAbs, n, name) {
+  var isPlural = msAbs >= n * 1.5;
+  return Math.round(ms / n) + ' ' + name + (isPlural ? 's' : '');
+}
diff --git a/backend/node_modules/ms/license.md b/backend/node_modules/ms/license.md
new file mode 100644
index 0000000..fa5d39b
--- /dev/null
+++ b/backend/node_modules/ms/license.md
@@ -0,0 +1,21 @@
+The MIT License (MIT)
+
+Copyright (c) 2020 Vercel, Inc.
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
diff --git a/backend/node_modules/ms/package.json b/backend/node_modules/ms/package.json
new file mode 100644
index 0000000..4997189
--- /dev/null
+++ b/backend/node_modules/ms/package.json
@@ -0,0 +1,38 @@
+{
+  "name": "ms",
+  "version": "2.1.3",
+  "description": "Tiny millisecond conversion utility",
+  "repository": "vercel/ms",
+  "main": "./index",
+  "files": [
+    "index.js"
+  ],
+  "scripts": {
+    "precommit": "lint-staged",
+    "lint": "eslint lib/* bin/*",
+    "test": "mocha tests.js"
+  },
+  "eslintConfig": {
+    "extends": "eslint:recommended",
+    "env": {
+      "node": true,
+      "es6": true
+    }
+  },
+  "lint-staged": {
+    "*.js": [
+      "npm run lint",
+      "prettier --single-quote --write",
+      "git add"
+    ]
+  },
+  "license": "MIT",
+  "devDependencies": {
+    "eslint": "4.18.2",
+    "expect.js": "0.3.1",
+    "husky": "0.14.3",
+    "lint-staged": "5.0.0",
+    "mocha": "4.0.1",
+    "prettier": "2.0.5"
+  }
+}
diff --git a/backend/node_modules/ms/readme.md b/backend/node_modules/ms/readme.md
new file mode 100644
index 0000000..0fc1abb
--- /dev/null
+++ b/backend/node_modules/ms/readme.md
@@ -0,0 +1,59 @@
+# ms
+
+![CI](https://github.com/vercel/ms/workflows/CI/badge.svg)
+
+Use this package to easily convert various time formats to milliseconds.
+
+## Examples
+
+```js
+ms('2 days')  // 172800000
+ms('1d')      // 86400000
+ms('10h')     // 36000000
+ms('2.5 hrs') // 9000000
+ms('2h')      // 7200000
+ms('1m')      // 60000
+ms('5s')      // 5000
+ms('1y')      // 31557600000
+ms('100')     // 100
+ms('-3 days') // -259200000
+ms('-1h')     // -3600000
+ms('-200')    // -200
+```
+
+### Convert from Milliseconds
+
+```js
+ms(60000)             // "1m"
+ms(2 * 60000)         // "2m"
+ms(-3 * 60000)        // "-3m"
+ms(ms('10 hours'))    // "10h"
+```
+
+### Time Format Written-Out
+
+```js
+ms(60000, { long: true })             // "1 minute"
+ms(2 * 60000, { long: true })         // "2 minutes"
+ms(-3 * 60000, { long: true })        // "-3 minutes"
+ms(ms('10 hours'), { long: true })    // "10 hours"
+```
+
+## Features
+
+- Works both in [Node.js](https://nodejs.org) and in the browser
+- If a number is supplied to `ms`, a string with a unit is returned
+- If a string that contains the number is supplied, it returns it as a number (e.g.: it returns `100` for `'100'`)
+- If you pass a string with a number and a valid unit, the number of equivalent milliseconds is returned
+
+## Related Packages
+
+- [ms.macro](https://github.com/knpwrs/ms.macro) - Run `ms` as a macro at build-time.
+
+## Caught a Bug?
+
+1. [Fork](https://help.github.com/articles/fork-a-repo/) this repository to your own GitHub account and then [clone](https://help.github.com/articles/cloning-a-repository/) it to your local device
+2. Link the package to the global module directory: `npm link`
+3. Within the module you want to test your local development instance of ms, just link it to the dependencies: `npm link ms`. Instead of the default one from npm, Node.js will now use your clone of ms!
+
+As always, you can run the tests using: `npm test`
diff --git a/backend/node_modules/negotiator/HISTORY.md b/backend/node_modules/negotiator/HISTORY.md
new file mode 100644
index 0000000..63d537d
--- /dev/null
+++ b/backend/node_modules/negotiator/HISTORY.md
@@ -0,0 +1,114 @@
+1.0.0 / 2024-08-31
+==================
+
+  * Drop support for node <18
+  * Added an option preferred encodings array #59
+
+0.6.3 / 2022-01-22
+==================
+
+  * Revert "Lazy-load modules from main entry point"
+
+0.6.2 / 2019-04-29
+==================
+
+  * Fix sorting charset, encoding, and language with extra parameters
+
+0.6.1 / 2016-05-02
+==================
+
+  * perf: improve `Accept` parsing speed
+  * perf: improve `Accept-Charset` parsing speed
+  * perf: improve `Accept-Encoding` parsing speed
+  * perf: improve `Accept-Language` parsing speed
+
+0.6.0 / 2015-09-29
+==================
+
+  * Fix including type extensions in parameters in `Accept` parsing
+  * Fix parsing `Accept` parameters with quoted equals
+  * Fix parsing `Accept` parameters with quoted semicolons
+  * Lazy-load modules from main entry point
+  * perf: delay type concatenation until needed
+  * perf: enable strict mode
+  * perf: hoist regular expressions
+  * perf: remove closures getting spec properties
+  * perf: remove a closure from media type parsing
+  * perf: remove property delete from media type parsing
+
+0.5.3 / 2015-05-10
+==================
+
+  * Fix media type parameter matching to be case-insensitive
+
+0.5.2 / 2015-05-06
+==================
+
+  * Fix comparing media types with quoted values
+  * Fix splitting media types with quoted commas
+
+0.5.1 / 2015-02-14
+==================
+
+  * Fix preference sorting to be stable for long acceptable lists
+
+0.5.0 / 2014-12-18
+==================
+
+  * Fix list return order when large accepted list
+  * Fix missing identity encoding when q=0 exists
+  * Remove dynamic building of Negotiator class
+
+0.4.9 / 2014-10-14
+==================
+
+  * Fix error when media type has invalid parameter
+
+0.4.8 / 2014-09-28
+==================
+
+  * Fix all negotiations to be case-insensitive
+  * Stable sort preferences of same quality according to client order
+  * Support Node.js 0.6
+
+0.4.7 / 2014-06-24
+==================
+
+  * Handle invalid provided languages
+  * Handle invalid provided media types
+
+0.4.6 / 2014-06-11
+==================
+
+  *  Order by specificity when quality is the same
+
+0.4.5 / 2014-05-29
+==================
+
+  * Fix regression in empty header handling
+
+0.4.4 / 2014-05-29
+==================
+
+  * Fix behaviors when headers are not present
+
+0.4.3 / 2014-04-16
+==================
+
+  * Handle slashes on media params correctly
+
+0.4.2 / 2014-02-28
+==================
+
+  * Fix media type sorting
+  * Handle media types params strictly
+
+0.4.1 / 2014-01-16
+==================
+
+  * Use most specific matches
+
+0.4.0 / 2014-01-09
+==================
+
+  * Remove preferred prefix from methods
diff --git a/backend/node_modules/negotiator/LICENSE b/backend/node_modules/negotiator/LICENSE
new file mode 100644
index 0000000..ea6b9e2
--- /dev/null
+++ b/backend/node_modules/negotiator/LICENSE
@@ -0,0 +1,24 @@
+(The MIT License)
+
+Copyright (c) 2012-2014 Federico Romero
+Copyright (c) 2012-2014 Isaac Z. Schlueter
+Copyright (c) 2014-2015 Douglas Christopher Wilson
+
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of this software and associated documentation files (the
+'Software'), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sublicense, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to
+the following conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
diff --git a/backend/node_modules/negotiator/README.md b/backend/node_modules/negotiator/README.md
new file mode 100644
index 0000000..6fb7f2d
--- /dev/null
+++ b/backend/node_modules/negotiator/README.md
@@ -0,0 +1,212 @@
+# negotiator
+
+[![NPM Version][npm-image]][npm-url]
+[![NPM Downloads][downloads-image]][downloads-url]
+[![Node.js Version][node-version-image]][node-version-url]
+[![Build Status][github-actions-ci-image]][github-actions-ci-url]
+[![Test Coverage][coveralls-image]][coveralls-url]
+
+An HTTP content negotiator for Node.js
+
+## Installation
+
+```sh
+$ npm install negotiator
+```
+
+## API
+
+```js
+var Negotiator = require('negotiator')
+```
+
+### Accept Negotiation
+
+```js
+availableMediaTypes = ['text/html', 'text/plain', 'application/json']
+
+// The negotiator constructor receives a request object
+negotiator = new Negotiator(request)
+
+// Let's say Accept header is 'text/html, application/*;q=0.2, image/jpeg;q=0.8'
+
+negotiator.mediaTypes()
+// -> ['text/html', 'image/jpeg', 'application/*']
+
+negotiator.mediaTypes(availableMediaTypes)
+// -> ['text/html', 'application/json']
+
+negotiator.mediaType(availableMediaTypes)
+// -> 'text/html'
+```
+
+You can check a working example at `examples/accept.js`.
+
+#### Methods
+
+##### mediaType()
+
+Returns the most preferred media type from the client.
+
+##### mediaType(availableMediaType)
+
+Returns the most preferred media type from a list of available media types.
+
+##### mediaTypes()
+
+Returns an array of preferred media types ordered by the client preference.
+
+##### mediaTypes(availableMediaTypes)
+
+Returns an array of preferred media types ordered by priority from a list of
+available media types.
+
+### Accept-Language Negotiation
+
+```js
+negotiator = new Negotiator(request)
+
+availableLanguages = ['en', 'es', 'fr']
+
+// Let's say Accept-Language header is 'en;q=0.8, es, pt'
+
+negotiator.languages()
+// -> ['es', 'pt', 'en']
+
+negotiator.languages(availableLanguages)
+// -> ['es', 'en']
+
+language = negotiator.language(availableLanguages)
+// -> 'es'
+```
+
+You can check a working example at `examples/language.js`.
+
+#### Methods
+
+##### language()
+
+Returns the most preferred language from the client.
+
+##### language(availableLanguages)
+
+Returns the most preferred language from a list of available languages.
+
+##### languages()
+
+Returns an array of preferred languages ordered by the client preference.
+
+##### languages(availableLanguages)
+
+Returns an array of preferred languages ordered by priority from a list of
+available languages.
+
+### Accept-Charset Negotiation
+
+```js
+availableCharsets = ['utf-8', 'iso-8859-1', 'iso-8859-5']
+
+negotiator = new Negotiator(request)
+
+// Let's say Accept-Charset header is 'utf-8, iso-8859-1;q=0.8, utf-7;q=0.2'
+
+negotiator.charsets()
+// -> ['utf-8', 'iso-8859-1', 'utf-7']
+
+negotiator.charsets(availableCharsets)
+// -> ['utf-8', 'iso-8859-1']
+
+negotiator.charset(availableCharsets)
+// -> 'utf-8'
+```
+
+You can check a working example at `examples/charset.js`.
+
+#### Methods
+
+##### charset()
+
+Returns the most preferred charset from the client.
+
+##### charset(availableCharsets)
+
+Returns the most preferred charset from a list of available charsets.
+
+##### charsets()
+
+Returns an array of preferred charsets ordered by the client preference.
+
+##### charsets(availableCharsets)
+
+Returns an array of preferred charsets ordered by priority from a list of
+available charsets.
+
+### Accept-Encoding Negotiation
+
+```js
+availableEncodings = ['identity', 'gzip']
+
+negotiator = new Negotiator(request)
+
+// Let's say Accept-Encoding header is 'gzip, compress;q=0.2, identity;q=0.5'
+
+negotiator.encodings()
+// -> ['gzip', 'identity', 'compress']
+
+negotiator.encodings(availableEncodings)
+// -> ['gzip', 'identity']
+
+negotiator.encoding(availableEncodings)
+// -> 'gzip'
+```
+
+You can check a working example at `examples/encoding.js`.
+
+#### Methods
+
+##### encoding()
+
+Returns the most preferred encoding from the client.
+
+##### encoding(availableEncodings)
+
+Returns the most preferred encoding from a list of available encodings.
+
+##### encoding(availableEncodings, { preferred })
+
+Returns the most preferred encoding from a list of available encodings, while prioritizing based on `preferred` array between same-quality encodings.
+
+##### encodings()
+
+Returns an array of preferred encodings ordered by the client preference.
+
+##### encodings(availableEncodings)
+
+Returns an array of preferred encodings ordered by priority from a list of
+available encodings.
+
+##### encodings(availableEncodings, { preferred })
+
+Returns an array of preferred encodings ordered by priority from a list of
+available encodings, while prioritizing based on `preferred` array between same-quality encodings.
+
+## See Also
+
+The [accepts](https://npmjs.org/package/accepts#readme) module builds on
+this module and provides an alternative interface, mime type validation,
+and more.
+
+## License
+
+[MIT](LICENSE)
+
+[npm-image]: https://img.shields.io/npm/v/negotiator.svg
+[npm-url]: https://npmjs.org/package/negotiator
+[node-version-image]: https://img.shields.io/node/v/negotiator.svg
+[node-version-url]: https://nodejs.org/en/download/
+[coveralls-image]: https://img.shields.io/coveralls/jshttp/negotiator/master.svg
+[coveralls-url]: https://coveralls.io/r/jshttp/negotiator?branch=master
+[downloads-image]: https://img.shields.io/npm/dm/negotiator.svg
+[downloads-url]: https://npmjs.org/package/negotiator
+[github-actions-ci-image]: https://img.shields.io/github/workflow/status/jshttp/negotiator/ci/master?label=ci
+[github-actions-ci-url]: https://github.com/jshttp/negotiator/actions/workflows/ci.yml
diff --git a/backend/node_modules/negotiator/index.js b/backend/node_modules/negotiator/index.js
new file mode 100644
index 0000000..4f51315
--- /dev/null
+++ b/backend/node_modules/negotiator/index.js
@@ -0,0 +1,83 @@
+/*!
+ * negotiator
+ * Copyright(c) 2012 Federico Romero
+ * Copyright(c) 2012-2014 Isaac Z. Schlueter
+ * Copyright(c) 2015 Douglas Christopher Wilson
+ * MIT Licensed
+ */
+
+'use strict';
+
+var preferredCharsets = require('./lib/charset')
+var preferredEncodings = require('./lib/encoding')
+var preferredLanguages = require('./lib/language')
+var preferredMediaTypes = require('./lib/mediaType')
+
+/**
+ * Module exports.
+ * @public
+ */
+
+module.exports = Negotiator;
+module.exports.Negotiator = Negotiator;
+
+/**
+ * Create a Negotiator instance from a request.
+ * @param {object} request
+ * @public
+ */
+
+function Negotiator(request) {
+  if (!(this instanceof Negotiator)) {
+    return new Negotiator(request);
+  }
+
+  this.request = request;
+}
+
+Negotiator.prototype.charset = function charset(available) {
+  var set = this.charsets(available);
+  return set && set[0];
+};
+
+Negotiator.prototype.charsets = function charsets(available) {
+  return preferredCharsets(this.request.headers['accept-charset'], available);
+};
+
+Negotiator.prototype.encoding = function encoding(available, opts) {
+  var set = this.encodings(available, opts);
+  return set && set[0];
+};
+
+Negotiator.prototype.encodings = function encodings(available, options) {
+  var opts = options || {};
+  return preferredEncodings(this.request.headers['accept-encoding'], available, opts.preferred);
+};
+
+Negotiator.prototype.language = function language(available) {
+  var set = this.languages(available);
+  return set && set[0];
+};
+
+Negotiator.prototype.languages = function languages(available) {
+  return preferredLanguages(this.request.headers['accept-language'], available);
+};
+
+Negotiator.prototype.mediaType = function mediaType(available) {
+  var set = this.mediaTypes(available);
+  return set && set[0];
+};
+
+Negotiator.prototype.mediaTypes = function mediaTypes(available) {
+  return preferredMediaTypes(this.request.headers.accept, available);
+};
+
+// Backwards compatibility
+Negotiator.prototype.preferredCharset = Negotiator.prototype.charset;
+Negotiator.prototype.preferredCharsets = Negotiator.prototype.charsets;
+Negotiator.prototype.preferredEncoding = Negotiator.prototype.encoding;
+Negotiator.prototype.preferredEncodings = Negotiator.prototype.encodings;
+Negotiator.prototype.preferredLanguage = Negotiator.prototype.language;
+Negotiator.prototype.preferredLanguages = Negotiator.prototype.languages;
+Negotiator.prototype.preferredMediaType = Negotiator.prototype.mediaType;
+Negotiator.prototype.preferredMediaTypes = Negotiator.prototype.mediaTypes;
diff --git a/backend/node_modules/negotiator/lib/charset.js b/backend/node_modules/negotiator/lib/charset.js
new file mode 100644
index 0000000..cdd0148
--- /dev/null
+++ b/backend/node_modules/negotiator/lib/charset.js
@@ -0,0 +1,169 @@
+/**
+ * negotiator
+ * Copyright(c) 2012 Isaac Z. Schlueter
+ * Copyright(c) 2014 Federico Romero
+ * Copyright(c) 2014-2015 Douglas Christopher Wilson
+ * MIT Licensed
+ */
+
+'use strict';
+
+/**
+ * Module exports.
+ * @public
+ */
+
+module.exports = preferredCharsets;
+module.exports.preferredCharsets = preferredCharsets;
+
+/**
+ * Module variables.
+ * @private
+ */
+
+var simpleCharsetRegExp = /^\s*([^\s;]+)\s*(?:;(.*))?$/;
+
+/**
+ * Parse the Accept-Charset header.
+ * @private
+ */
+
+function parseAcceptCharset(accept) {
+  var accepts = accept.split(',');
+
+  for (var i = 0, j = 0; i < accepts.length; i++) {
+    var charset = parseCharset(accepts[i].trim(), i);
+
+    if (charset) {
+      accepts[j++] = charset;
+    }
+  }
+
+  // trim accepts
+  accepts.length = j;
+
+  return accepts;
+}
+
+/**
+ * Parse a charset from the Accept-Charset header.
+ * @private
+ */
+
+function parseCharset(str, i) {
+  var match = simpleCharsetRegExp.exec(str);
+  if (!match) return null;
+
+  var charset = match[1];
+  var q = 1;
+  if (match[2]) {
+    var params = match[2].split(';')
+    for (var j = 0; j < params.length; j++) {
+      var p = params[j].trim().split('=');
+      if (p[0] === 'q') {
+        q = parseFloat(p[1]);
+        break;
+      }
+    }
+  }
+
+  return {
+    charset: charset,
+    q: q,
+    i: i
+  };
+}
+
+/**
+ * Get the priority of a charset.
+ * @private
+ */
+
+function getCharsetPriority(charset, accepted, index) {
+  var priority = {o: -1, q: 0, s: 0};
+
+  for (var i = 0; i < accepted.length; i++) {
+    var spec = specify(charset, accepted[i], index);
+
+    if (spec && (priority.s - spec.s || priority.q - spec.q || priority.o - spec.o) < 0) {
+      priority = spec;
+    }
+  }
+
+  return priority;
+}
+
+/**
+ * Get the specificity of the charset.
+ * @private
+ */
+
+function specify(charset, spec, index) {
+  var s = 0;
+  if(spec.charset.toLowerCase() === charset.toLowerCase()){
+    s |= 1;
+  } else if (spec.charset !== '*' ) {
+    return null
+  }
+
+  return {
+    i: index,
+    o: spec.i,
+    q: spec.q,
+    s: s
+  }
+}
+
+/**
+ * Get the preferred charsets from an Accept-Charset header.
+ * @public
+ */
+
+function preferredCharsets(accept, provided) {
+  // RFC 2616 sec 14.2: no header = *
+  var accepts = parseAcceptCharset(accept === undefined ? '*' : accept || '');
+
+  if (!provided) {
+    // sorted list of all charsets
+    return accepts
+      .filter(isQuality)
+      .sort(compareSpecs)
+      .map(getFullCharset);
+  }
+
+  var priorities = provided.map(function getPriority(type, index) {
+    return getCharsetPriority(type, accepts, index);
+  });
+
+  // sorted list of accepted charsets
+  return priorities.filter(isQuality).sort(compareSpecs).map(function getCharset(priority) {
+    return provided[priorities.indexOf(priority)];
+  });
+}
+
+/**
+ * Compare two specs.
+ * @private
+ */
+
+function compareSpecs(a, b) {
+  return (b.q - a.q) || (b.s - a.s) || (a.o - b.o) || (a.i - b.i) || 0;
+}
+
+/**
+ * Get full charset string.
+ * @private
+ */
+
+function getFullCharset(spec) {
+  return spec.charset;
+}
+
+/**
+ * Check if a spec has any quality.
+ * @private
+ */
+
+function isQuality(spec) {
+  return spec.q > 0;
+}
diff --git a/backend/node_modules/negotiator/lib/encoding.js b/backend/node_modules/negotiator/lib/encoding.js
new file mode 100644
index 0000000..9ebb633
--- /dev/null
+++ b/backend/node_modules/negotiator/lib/encoding.js
@@ -0,0 +1,205 @@
+/**
+ * negotiator
+ * Copyright(c) 2012 Isaac Z. Schlueter
+ * Copyright(c) 2014 Federico Romero
+ * Copyright(c) 2014-2015 Douglas Christopher Wilson
+ * MIT Licensed
+ */
+
+'use strict';
+
+/**
+ * Module exports.
+ * @public
+ */
+
+module.exports = preferredEncodings;
+module.exports.preferredEncodings = preferredEncodings;
+
+/**
+ * Module variables.
+ * @private
+ */
+
+var simpleEncodingRegExp = /^\s*([^\s;]+)\s*(?:;(.*))?$/;
+
+/**
+ * Parse the Accept-Encoding header.
+ * @private
+ */
+
+function parseAcceptEncoding(accept) {
+  var accepts = accept.split(',');
+  var hasIdentity = false;
+  var minQuality = 1;
+
+  for (var i = 0, j = 0; i < accepts.length; i++) {
+    var encoding = parseEncoding(accepts[i].trim(), i);
+
+    if (encoding) {
+      accepts[j++] = encoding;
+      hasIdentity = hasIdentity || specify('identity', encoding);
+      minQuality = Math.min(minQuality, encoding.q || 1);
+    }
+  }
+
+  if (!hasIdentity) {
+    /*
+     * If identity doesn't explicitly appear in the accept-encoding header,
+     * it's added to the list of acceptable encoding with the lowest q
+     */
+    accepts[j++] = {
+      encoding: 'identity',
+      q: minQuality,
+      i: i
+    };
+  }
+
+  // trim accepts
+  accepts.length = j;
+
+  return accepts;
+}
+
+/**
+ * Parse an encoding from the Accept-Encoding header.
+ * @private
+ */
+
+function parseEncoding(str, i) {
+  var match = simpleEncodingRegExp.exec(str);
+  if (!match) return null;
+
+  var encoding = match[1];
+  var q = 1;
+  if (match[2]) {
+    var params = match[2].split(';');
+    for (var j = 0; j < params.length; j++) {
+      var p = params[j].trim().split('=');
+      if (p[0] === 'q') {
+        q = parseFloat(p[1]);
+        break;
+      }
+    }
+  }
+
+  return {
+    encoding: encoding,
+    q: q,
+    i: i
+  };
+}
+
+/**
+ * Get the priority of an encoding.
+ * @private
+ */
+
+function getEncodingPriority(encoding, accepted, index) {
+  var priority = {encoding: encoding, o: -1, q: 0, s: 0};
+
+  for (var i = 0; i < accepted.length; i++) {
+    var spec = specify(encoding, accepted[i], index);
+
+    if (spec && (priority.s - spec.s || priority.q - spec.q || priority.o - spec.o) < 0) {
+      priority = spec;
+    }
+  }
+
+  return priority;
+}
+
+/**
+ * Get the specificity of the encoding.
+ * @private
+ */
+
+function specify(encoding, spec, index) {
+  var s = 0;
+  if(spec.encoding.toLowerCase() === encoding.toLowerCase()){
+    s |= 1;
+  } else if (spec.encoding !== '*' ) {
+    return null
+  }
+
+  return {
+    encoding: encoding,
+    i: index,
+    o: spec.i,
+    q: spec.q,
+    s: s
+  }
+};
+
+/**
+ * Get the preferred encodings from an Accept-Encoding header.
+ * @public
+ */
+
+function preferredEncodings(accept, provided, preferred) {
+  var accepts = parseAcceptEncoding(accept || '');
+
+  var comparator = preferred ? function comparator (a, b) {
+    if (a.q !== b.q) {
+      return b.q - a.q // higher quality first
+    }
+
+    var aPreferred = preferred.indexOf(a.encoding)
+    var bPreferred = preferred.indexOf(b.encoding)
+
+    if (aPreferred === -1 && bPreferred === -1) {
+      // consider the original specifity/order
+      return (b.s - a.s) || (a.o - b.o) || (a.i - b.i)
+    }
+
+    if (aPreferred !== -1 && bPreferred !== -1) {
+      return aPreferred - bPreferred // consider the preferred order
+    }
+
+    return aPreferred === -1 ? 1 : -1 // preferred first
+  } : compareSpecs;
+
+  if (!provided) {
+    // sorted list of all encodings
+    return accepts
+      .filter(isQuality)
+      .sort(comparator)
+      .map(getFullEncoding);
+  }
+
+  var priorities = provided.map(function getPriority(type, index) {
+    return getEncodingPriority(type, accepts, index);
+  });
+
+  // sorted list of accepted encodings
+  return priorities.filter(isQuality).sort(comparator).map(function getEncoding(priority) {
+    return provided[priorities.indexOf(priority)];
+  });
+}
+
+/**
+ * Compare two specs.
+ * @private
+ */
+
+function compareSpecs(a, b) {
+  return (b.q - a.q) || (b.s - a.s) || (a.o - b.o) || (a.i - b.i);
+}
+
+/**
+ * Get full encoding string.
+ * @private
+ */
+
+function getFullEncoding(spec) {
+  return spec.encoding;
+}
+
+/**
+ * Check if a spec has any quality.
+ * @private
+ */
+
+function isQuality(spec) {
+  return spec.q > 0;
+}
diff --git a/backend/node_modules/negotiator/lib/language.js b/backend/node_modules/negotiator/lib/language.js
new file mode 100644
index 0000000..a231672
--- /dev/null
+++ b/backend/node_modules/negotiator/lib/language.js
@@ -0,0 +1,179 @@
+/**
+ * negotiator
+ * Copyright(c) 2012 Isaac Z. Schlueter
+ * Copyright(c) 2014 Federico Romero
+ * Copyright(c) 2014-2015 Douglas Christopher Wilson
+ * MIT Licensed
+ */
+
+'use strict';
+
+/**
+ * Module exports.
+ * @public
+ */
+
+module.exports = preferredLanguages;
+module.exports.preferredLanguages = preferredLanguages;
+
+/**
+ * Module variables.
+ * @private
+ */
+
+var simpleLanguageRegExp = /^\s*([^\s\-;]+)(?:-([^\s;]+))?\s*(?:;(.*))?$/;
+
+/**
+ * Parse the Accept-Language header.
+ * @private
+ */
+
+function parseAcceptLanguage(accept) {
+  var accepts = accept.split(',');
+
+  for (var i = 0, j = 0; i < accepts.length; i++) {
+    var language = parseLanguage(accepts[i].trim(), i);
+
+    if (language) {
+      accepts[j++] = language;
+    }
+  }
+
+  // trim accepts
+  accepts.length = j;
+
+  return accepts;
+}
+
+/**
+ * Parse a language from the Accept-Language header.
+ * @private
+ */
+
+function parseLanguage(str, i) {
+  var match = simpleLanguageRegExp.exec(str);
+  if (!match) return null;
+
+  var prefix = match[1]
+  var suffix = match[2]
+  var full = prefix
+
+  if (suffix) full += "-" + suffix;
+
+  var q = 1;
+  if (match[3]) {
+    var params = match[3].split(';')
+    for (var j = 0; j < params.length; j++) {
+      var p = params[j].split('=');
+      if (p[0] === 'q') q = parseFloat(p[1]);
+    }
+  }
+
+  return {
+    prefix: prefix,
+    suffix: suffix,
+    q: q,
+    i: i,
+    full: full
+  };
+}
+
+/**
+ * Get the priority of a language.
+ * @private
+ */
+
+function getLanguagePriority(language, accepted, index) {
+  var priority = {o: -1, q: 0, s: 0};
+
+  for (var i = 0; i < accepted.length; i++) {
+    var spec = specify(language, accepted[i], index);
+
+    if (spec && (priority.s - spec.s || priority.q - spec.q || priority.o - spec.o) < 0) {
+      priority = spec;
+    }
+  }
+
+  return priority;
+}
+
+/**
+ * Get the specificity of the language.
+ * @private
+ */
+
+function specify(language, spec, index) {
+  var p = parseLanguage(language)
+  if (!p) return null;
+  var s = 0;
+  if(spec.full.toLowerCase() === p.full.toLowerCase()){
+    s |= 4;
+  } else if (spec.prefix.toLowerCase() === p.full.toLowerCase()) {
+    s |= 2;
+  } else if (spec.full.toLowerCase() === p.prefix.toLowerCase()) {
+    s |= 1;
+  } else if (spec.full !== '*' ) {
+    return null
+  }
+
+  return {
+    i: index,
+    o: spec.i,
+    q: spec.q,
+    s: s
+  }
+};
+
+/**
+ * Get the preferred languages from an Accept-Language header.
+ * @public
+ */
+
+function preferredLanguages(accept, provided) {
+  // RFC 2616 sec 14.4: no header = *
+  var accepts = parseAcceptLanguage(accept === undefined ? '*' : accept || '');
+
+  if (!provided) {
+    // sorted list of all languages
+    return accepts
+      .filter(isQuality)
+      .sort(compareSpecs)
+      .map(getFullLanguage);
+  }
+
+  var priorities = provided.map(function getPriority(type, index) {
+    return getLanguagePriority(type, accepts, index);
+  });
+
+  // sorted list of accepted languages
+  return priorities.filter(isQuality).sort(compareSpecs).map(function getLanguage(priority) {
+    return provided[priorities.indexOf(priority)];
+  });
+}
+
+/**
+ * Compare two specs.
+ * @private
+ */
+
+function compareSpecs(a, b) {
+  return (b.q - a.q) || (b.s - a.s) || (a.o - b.o) || (a.i - b.i) || 0;
+}
+
+/**
+ * Get full language string.
+ * @private
+ */
+
+function getFullLanguage(spec) {
+  return spec.full;
+}
+
+/**
+ * Check if a spec has any quality.
+ * @private
+ */
+
+function isQuality(spec) {
+  return spec.q > 0;
+}
diff --git a/backend/node_modules/negotiator/lib/mediaType.js b/backend/node_modules/negotiator/lib/mediaType.js
new file mode 100644
index 0000000..8e402ea
--- /dev/null
+++ b/backend/node_modules/negotiator/lib/mediaType.js
@@ -0,0 +1,294 @@
+/**
+ * negotiator
+ * Copyright(c) 2012 Isaac Z. Schlueter
+ * Copyright(c) 2014 Federico Romero
+ * Copyright(c) 2014-2015 Douglas Christopher Wilson
+ * MIT Licensed
+ */
+
+'use strict';
+
+/**
+ * Module exports.
+ * @public
+ */
+
+module.exports = preferredMediaTypes;
+module.exports.preferredMediaTypes = preferredMediaTypes;
+
+/**
+ * Module variables.
+ * @private
+ */
+
+var simpleMediaTypeRegExp = /^\s*([^\s\/;]+)\/([^;\s]+)\s*(?:;(.*))?$/;
+
+/**
+ * Parse the Accept header.
+ * @private
+ */
+
+function parseAccept(accept) {
+  var accepts = splitMediaTypes(accept);
+
+  for (var i = 0, j = 0; i < accepts.length; i++) {
+    var mediaType = parseMediaType(accepts[i].trim(), i);
+
+    if (mediaType) {
+      accepts[j++] = mediaType;
+    }
+  }
+
+  // trim accepts
+  accepts.length = j;
+
+  return accepts;
+}
+
+/**
+ * Parse a media type from the Accept header.
+ * @private
+ */
+
+function parseMediaType(str, i) {
+  var match = simpleMediaTypeRegExp.exec(str);
+  if (!match) return null;
+
+  var params = Object.create(null);
+  var q = 1;
+  var subtype = match[2];
+  var type = match[1];
+
+  if (match[3]) {
+    var kvps = splitParameters(match[3]).map(splitKeyValuePair);
+
+    for (var j = 0; j < kvps.length; j++) {
+      var pair = kvps[j];
+      var key = pair[0].toLowerCase();
+      var val = pair[1];
+
+      // get the value, unwrapping quotes
+      var value = val && val[0] === '"' && val[val.length - 1] === '"'
+        ? val.slice(1, -1)
+        : val;
+
+      if (key === 'q') {
+        q = parseFloat(value);
+        break;
+      }
+
+      // store parameter
+      params[key] = value;
+    }
+  }
+
+  return {
+    type: type,
+    subtype: subtype,
+    params: params,
+    q: q,
+    i: i
+  };
+}
+
+/**
+ * Get the priority of a media type.
+ * @private
+ */
+
+function getMediaTypePriority(type, accepted, index) {
+  var priority = {o: -1, q: 0, s: 0};
+
+  for (var i = 0; i < accepted.length; i++) {
+    var spec = specify(type, accepted[i], index);
+
+    if (spec && (priority.s - spec.s || priority.q - spec.q || priority.o - spec.o) < 0) {
+      priority = spec;
+    }
+  }
+
+  return priority;
+}
+
+/**
+ * Get the specificity of the media type.
+ * @private
+ */
+
+function specify(type, spec, index) {
+  var p = parseMediaType(type);
+  var s = 0;
+
+  if (!p) {
+    return null;
+  }
+
+  if(spec.type.toLowerCase() == p.type.toLowerCase()) {
+    s |= 4
+  } else if(spec.type != '*') {
+    return null;
+  }
+
+  if(spec.subtype.toLowerCase() == p.subtype.toLowerCase()) {
+    s |= 2
+  } else if(spec.subtype != '*') {
+    return null;
+  }
+
+  var keys = Object.keys(spec.params);
+  if (keys.length > 0) {
+    if (keys.every(function (k) {
+      return spec.params[k] == '*' || (spec.params[k] || '').toLowerCase() == (p.params[k] || '').toLowerCase();
+    })) {
+      s |= 1
+    } else {
+      return null
+    }
+  }
+
+  return {
+    i: index,
+    o: spec.i,
+    q: spec.q,
+    s: s,
+  }
+}
+
+/**
+ * Get the preferred media types from an Accept header.
+ * @public
+ */
+
+function preferredMediaTypes(accept, provided) {
+  // RFC 2616 sec 14.2: no header = */*
+  var accepts = parseAccept(accept === undefined ? '*/*' : accept || '');
+
+  if (!provided) {
+    // sorted list of all types
+    return accepts
+      .filter(isQuality)
+      .sort(compareSpecs)
+      .map(getFullType);
+  }
+
+  var priorities = provided.map(function getPriority(type, index) {
+    return getMediaTypePriority(type, accepts, index);
+  });
+
+  // sorted list of accepted types
+  return priorities.filter(isQuality).sort(compareSpecs).map(function getType(priority) {
+    return provided[priorities.indexOf(priority)];
+  });
+}
+
+/**
+ * Compare two specs.
+ * @private
+ */
+
+function compareSpecs(a, b) {
+  return (b.q - a.q) || (b.s - a.s) || (a.o - b.o) || (a.i - b.i) || 0;
+}
+
+/**
+ * Get full type string.
+ * @private
+ */
+
+function getFullType(spec) {
+  return spec.type + '/' + spec.subtype;
+}
+
+/**
+ * Check if a spec has any quality.
+ * @private
+ */
+
+function isQuality(spec) {
+  return spec.q > 0;
+}
+
+/**
+ * Count the number of quotes in a string.
+ * @private
+ */
+
+function quoteCount(string) {
+  var count = 0;
+  var index = 0;
+
+  while ((index = string.indexOf('"', index)) !== -1) {
+    count++;
+    index++;
+  }
+
+  return count;
+}
+
+/**
+ * Split a key value pair.
+ * @private
+ */
+
+function splitKeyValuePair(str) {
+  var index = str.indexOf('=');
+  var key;
+  var val;
+
+  if (index === -1) {
+    key = str;
+  } else {
+    key = str.slice(0, index);
+    val = str.slice(index + 1);
+  }
+
+  return [key, val];
+}
+
+/**
+ * Split an Accept header into media types.
+ * @private
+ */
+
+function splitMediaTypes(accept) {
+  var accepts = accept.split(',');
+
+  for (var i = 1, j = 0; i < accepts.length; i++) {
+    if (quoteCount(accepts[j]) % 2 == 0) {
+      accepts[++j] = accepts[i];
+    } else {
+      accepts[j] += ',' + accepts[i];
+    }
+  }
+
+  // trim accepts
+  accepts.length = j + 1;
+
+  return accepts;
+}
+
+/**
+ * Split a string of parameters.
+ * @private
+ */
+
+function splitParameters(str) {
+  var parameters = str.split(';');
+
+  for (var i = 1, j = 0; i < parameters.length; i++) {
+    if (quoteCount(parameters[j]) % 2 == 0) {
+      parameters[++j] = parameters[i];
+    } else {
+      parameters[j] += ';' + parameters[i];
+    }
+  }
+
+  // trim parameters
+  parameters.length = j + 1;
+
+  for (var i = 0; i < parameters.length; i++) {
+    parameters[i] = parameters[i].trim();
+  }
+
+  return parameters;
+}
diff --git a/backend/node_modules/negotiator/package.json b/backend/node_modules/negotiator/package.json
new file mode 100644
index 0000000..e4bdc1e
--- /dev/null
+++ b/backend/node_modules/negotiator/package.json
@@ -0,0 +1,43 @@
+{
+  "name": "negotiator",
+  "description": "HTTP content negotiation",
+  "version": "1.0.0",
+  "contributors": [
+    "Douglas Christopher Wilson <doug@somethingdoug.com>",
+    "Federico Romero <federico.romero@outboxlabs.com>",
+    "Isaac Z. Schlueter <i@izs.me> (http://blog.izs.me/)"
+  ],
+  "license": "MIT",
+  "keywords": [
+    "http",
+    "content negotiation",
+    "accept",
+    "accept-language",
+    "accept-encoding",
+    "accept-charset"
+  ],
+  "repository": "jshttp/negotiator",
+  "devDependencies": {
+    "eslint": "7.32.0",
+    "eslint-plugin-markdown": "2.2.1",
+    "mocha": "9.1.3",
+    "nyc": "15.1.0"
+  },
+  "files": [
+    "lib/",
+    "HISTORY.md",
+    "LICENSE",
+    "index.js",
+    "README.md"
+  ],
+  "engines": {
+    "node": ">= 0.6"
+  },
+  "scripts": {
+    "lint": "eslint .",
+    "test": "mocha --reporter spec --check-leaks --bail test/",
+    "test:debug": "mocha --reporter spec --check-leaks --inspect --inspect-brk test/",
+    "test-ci": "nyc --reporter=lcov --reporter=text npm test",
+    "test-cov": "nyc --reporter=html --reporter=text npm test"
+  }
+}
diff --git a/backend/node_modules/nodemailer/.gitattributes b/backend/node_modules/nodemailer/.gitattributes
new file mode 100644
index 0000000..0318d52
--- /dev/null
+++ b/backend/node_modules/nodemailer/.gitattributes
@@ -0,0 +1,6 @@
+*.js text eol=lf
+*.txt text eol=lf
+*.html text eol=lf
+*.htm text eol=lf
+*.ics -text
+*.bin -text
\ No newline at end of file
diff --git a/backend/node_modules/nodemailer/.ncurc.js b/backend/node_modules/nodemailer/.ncurc.js
new file mode 100644
index 0000000..8133dde
--- /dev/null
+++ b/backend/node_modules/nodemailer/.ncurc.js
@@ -0,0 +1,11 @@
+module.exports = {
+    upgrade: true,
+    reject: [
+        // API changes break existing tests
+        'proxy',
+
+        // API changes
+        'eslint',
+        'eslint-config-prettier'
+    ]
+};
diff --git a/backend/node_modules/nodemailer/.prettierrc.js b/backend/node_modules/nodemailer/.prettierrc.js
new file mode 100644
index 0000000..3f83654
--- /dev/null
+++ b/backend/node_modules/nodemailer/.prettierrc.js
@@ -0,0 +1,8 @@
+module.exports = {
+    printWidth: 160,
+    tabWidth: 4,
+    singleQuote: true,
+    endOfLine: 'lf',
+    trailingComma: 'none',
+    arrowParens: 'avoid'
+};
diff --git a/backend/node_modules/nodemailer/CHANGELOG.md b/backend/node_modules/nodemailer/CHANGELOG.md
new file mode 100644
index 0000000..0f153a8
--- /dev/null
+++ b/backend/node_modules/nodemailer/CHANGELOG.md
@@ -0,0 +1,905 @@
+# CHANGELOG
+
+## [7.0.6](https://github.com/nodemailer/nodemailer/compare/v7.0.5...v7.0.6) (2025-08-27)
+
+
+### Bug Fixes
+
+* **encoder:** avoid silent data loss by properly flushing trailing base64 ([#1747](https://github.com/nodemailer/nodemailer/issues/1747)) ([01ae76f](https://github.com/nodemailer/nodemailer/commit/01ae76f2cfe991c0c3fe80170f236da60531496b))
+* handle multiple XOAUTH2 token requests correctly ([#1754](https://github.com/nodemailer/nodemailer/issues/1754)) ([dbe0028](https://github.com/nodemailer/nodemailer/commit/dbe00286351cddf012726a41a96ae613d30a34ee))
+* ReDoS vulnerability in parseDataURI and _processDataUrl ([#1755](https://github.com/nodemailer/nodemailer/issues/1755)) ([90b3e24](https://github.com/nodemailer/nodemailer/commit/90b3e24d23929ebf9f4e16261049b40ee4055a39))
+
+## [7.0.5](https://github.com/nodemailer/nodemailer/compare/v7.0.4...v7.0.5) (2025-07-07)
+
+
+### Bug Fixes
+
+* updated well known delivery service list ([fa2724b](https://github.com/nodemailer/nodemailer/commit/fa2724b337eb8d8fdcdd788fe903980b061316b8))
+
+## [7.0.4](https://github.com/nodemailer/nodemailer/compare/v7.0.3...v7.0.4) (2025-06-29)
+
+
+### Bug Fixes
+
+* **pools:** Emit 'clear' once transporter is idle and all connections are closed ([839e286](https://github.com/nodemailer/nodemailer/commit/839e28634c9a93ae4321f399a8c893bf487a09fa))
+* **smtp-connection:** jsdoc public annotation for socket ([#1741](https://github.com/nodemailer/nodemailer/issues/1741)) ([c45c84f](https://github.com/nodemailer/nodemailer/commit/c45c84fe9b8e2ec5e0615ab02d4197473911ab3e))
+* **well-known-services:** Added AliyunQiye ([bb9e6da](https://github.com/nodemailer/nodemailer/commit/bb9e6daffb632d7d8f969359859f88a138de3a48))
+
+## [7.0.3](https://github.com/nodemailer/nodemailer/compare/v7.0.2...v7.0.3) (2025-05-08)
+
+
+### Bug Fixes
+
+* **attachments:** Set the default transfer encoding for message/rfc822 attachments as '7bit' ([007d5f3](https://github.com/nodemailer/nodemailer/commit/007d5f3f40908c588f1db46c76de8b64ff429327))
+
+## [7.0.2](https://github.com/nodemailer/nodemailer/compare/v7.0.1...v7.0.2) (2025-05-04)
+
+
+### Bug Fixes
+
+* **ses:** Fixed structured from header ([faa9a5e](https://github.com/nodemailer/nodemailer/commit/faa9a5eafaacbaf85de3540466a04636e12729b3))
+
+## [7.0.1](https://github.com/nodemailer/nodemailer/compare/v7.0.0...v7.0.1) (2025-05-04)
+
+
+### Bug Fixes
+
+* **ses:** Use formatted FromEmailAddress for SES emails ([821cd09](https://github.com/nodemailer/nodemailer/commit/821cd09002f16c20369cc728b9414c7eb99e4113))
+
+## [7.0.0](https://github.com/nodemailer/nodemailer/compare/v6.10.1...v7.0.0) (2025-05-03)
+
+
+### ⚠ BREAKING CHANGES
+
+* SESv2 SDK support, removed older SES SDK v2 and v3 , removed SES rate limiting and idling features
+
+### Features
+
+* SESv2 SDK support, removed older SES SDK v2 and v3 , removed SES rate limiting and idling features ([15db667](https://github.com/nodemailer/nodemailer/commit/15db667af2d0a5ed835281cfdbab16ee73b5edce))
+
+## [6.10.1](https://github.com/nodemailer/nodemailer/compare/v6.10.0...v6.10.1) (2025-02-06)
+
+
+### Bug Fixes
+
+* close correct socket ([a18062c](https://github.com/nodemailer/nodemailer/commit/a18062c04d0e05ca4357fbe8f0a59b690fa5391e))
+
+## [6.10.0](https://github.com/nodemailer/nodemailer/compare/v6.9.16...v6.10.0) (2025-01-23)
+
+
+### Features
+
+* **services:** add Seznam email service configuration ([#1695](https://github.com/nodemailer/nodemailer/issues/1695)) ([d1ae0a8](https://github.com/nodemailer/nodemailer/commit/d1ae0a86883ba6011a49a5bbdf076098e2e3637a))
+
+
+### Bug Fixes
+
+* **proxy:** Set error and timeout errors for proxied sockets ([aa0c99c](https://github.com/nodemailer/nodemailer/commit/aa0c99c8f25440bb3dc91f4f3448777c800604d7))
+
+## [6.9.16](https://github.com/nodemailer/nodemailer/compare/v6.9.15...v6.9.16) (2024-10-28)
+
+
+### Bug Fixes
+
+* **addressparser:** Correctly detect if user local part is attached to domain part ([f2096c5](https://github.com/nodemailer/nodemailer/commit/f2096c51b92a69ecfbcc15884c28cb2c2f00b826))
+
+## [6.9.15](https://github.com/nodemailer/nodemailer/compare/v6.9.14...v6.9.15) (2024-08-08)
+
+
+### Bug Fixes
+
+* Fix memory leak ([#1667](https://github.com/nodemailer/nodemailer/issues/1667)) ([baa28f6](https://github.com/nodemailer/nodemailer/commit/baa28f659641a4bc30360633673d851618f8e8bd))
+* **mime:** Added GeoJSON closes [#1637](https://github.com/nodemailer/nodemailer/issues/1637) ([#1665](https://github.com/nodemailer/nodemailer/issues/1665)) ([79b8293](https://github.com/nodemailer/nodemailer/commit/79b8293ad557d36f066b4675e649dd80362fd45b))
+
+## [6.9.14](https://github.com/nodemailer/nodemailer/compare/v6.9.13...v6.9.14) (2024-06-19)
+
+
+### Bug Fixes
+
+* **api:** Added support for Ethereal authentication ([56b2205](https://github.com/nodemailer/nodemailer/commit/56b22052a98de9e363f6c4d26d1512925349c3f3))
+* **services.json:** Add Email Services Provider Feishu Mail (CN) ([#1648](https://github.com/nodemailer/nodemailer/issues/1648)) ([e9e9ecc](https://github.com/nodemailer/nodemailer/commit/e9e9ecc99b352948a912868c7912b280a05178c6))
+* **services.json:** update Mailtrap host and port in well known ([#1652](https://github.com/nodemailer/nodemailer/issues/1652)) ([fc2c9ea](https://github.com/nodemailer/nodemailer/commit/fc2c9ea0b4c4f4e514143d2a138c9a23095fc827))
+* **well-known-services:** Add Loopia in well known services ([#1655](https://github.com/nodemailer/nodemailer/issues/1655)) ([21a28a1](https://github.com/nodemailer/nodemailer/commit/21a28a18fc9fdf8e0e86ddd846e54641395b2cb6))
+
+## [6.9.13](https://github.com/nodemailer/nodemailer/compare/v6.9.12...v6.9.13) (2024-03-20)
+
+
+### Bug Fixes
+
+* **tls:** Ensure servername for SMTP ([d66fdd3](https://github.com/nodemailer/nodemailer/commit/d66fdd3dccacc4bc79d697fe9009204cc8d4bde0))
+
+## [6.9.12](https://github.com/nodemailer/nodemailer/compare/v6.9.11...v6.9.12) (2024-03-08)
+
+
+### Bug Fixes
+
+* **message-generation:** Escape single quote in address names ([4ae5fad](https://github.com/nodemailer/nodemailer/commit/4ae5fadeaac70ba91abf529fcaae65f829a39101))
+
+## [6.9.11](https://github.com/nodemailer/nodemailer/compare/v6.9.10...v6.9.11) (2024-02-29)
+
+
+### Bug Fixes
+
+* **headers:** Ensure that Content-type is the bottom header ([c7cf97e](https://github.com/nodemailer/nodemailer/commit/c7cf97e5ecc83f8eee773359951df995c9945446))
+
+## [6.9.10](https://github.com/nodemailer/nodemailer/compare/v6.9.9...v6.9.10) (2024-02-22)
+
+
+### Bug Fixes
+
+* **data-uri:** Do not use regular expressions for parsing data URI schemes ([12e65e9](https://github.com/nodemailer/nodemailer/commit/12e65e975d80efe6bafe6de4590829b3b5ebb492))
+* **data-uri:** Moved all data-uri regexes to use the non-regex parseDataUri method ([edd5dfe](https://github.com/nodemailer/nodemailer/commit/edd5dfe5ce9b725f8b8ae2830797f65b2a2b0a33))
+
+## [6.9.9](https://github.com/nodemailer/nodemailer/compare/v6.9.8...v6.9.9) (2024-02-01)
+
+
+### Bug Fixes
+
+* **security:** Fix issues described in GHSA-9h6g-pr28-7cqp. Do not use eternal matching pattern if only a few occurences are expected ([dd8f5e8](https://github.com/nodemailer/nodemailer/commit/dd8f5e8a4ddc99992e31df76bcff9c590035cd4a))
+* **tests:** Use native node test runner, added code coverage support, removed grunt ([#1604](https://github.com/nodemailer/nodemailer/issues/1604)) ([be45c1b](https://github.com/nodemailer/nodemailer/commit/be45c1b299d012358d69247019391a02734d70af))
+
+## [6.9.8](https://github.com/nodemailer/nodemailer/compare/v6.9.7...v6.9.8) (2023-12-30)
+
+
+### Bug Fixes
+
+* **punycode:** do not use native punycode module ([b4d0e0c](https://github.com/nodemailer/nodemailer/commit/b4d0e0c7cc4b15bc4d9e287f91d1bcaca87508b0))
+
+## [6.9.7](https://github.com/nodemailer/nodemailer/compare/v6.9.6...v6.9.7) (2023-10-22)
+
+
+### Bug Fixes
+
+* **customAuth:** Do not require user and pass to be set for custom authentication schemes (fixes [#1584](https://github.com/nodemailer/nodemailer/issues/1584)) ([41d482c](https://github.com/nodemailer/nodemailer/commit/41d482c3f01e26111b06f3e46351b193db3fb5cb))
+
+## [6.9.6](https://github.com/nodemailer/nodemailer/compare/v6.9.5...v6.9.6) (2023-10-09)
+
+
+### Bug Fixes
+
+* **inline:** Use 'inline' as the default Content Dispostion value for embedded images ([db32c93](https://github.com/nodemailer/nodemailer/commit/db32c93fefee527bcc239f13056e5d9181a4d8af))
+* **tests:** Removed Node v12 from test matrix as it is not compatible with the test framework anymore ([7fe0a60](https://github.com/nodemailer/nodemailer/commit/7fe0a608ed6bcb70dc6b2de543ebfc3a30abf984))
+
+## [6.9.5](https://github.com/nodemailer/nodemailer/compare/v6.9.4...v6.9.5) (2023-09-06)
+
+
+### Bug Fixes
+
+* **license:** Updated license year ([da4744e](https://github.com/nodemailer/nodemailer/commit/da4744e491f3a68f4f68e4073684370592630e01))
+
+## 6.9.4 2023-07-19
+
+-   Renamed SendinBlue to Brevo
+
+## 6.9.3 2023-05-29
+
+-   Specified license identifier (was defined as MIT, actual value MIT-0)
+-   If SMTP server disconnects with a message, process it and include as part of the response error
+
+## 6.9.2 2023-05-11
+
+-   Fix uncaught exception on invalid attachment content payload
+
+## 6.9.1 2023-01-27
+
+-   Fix base64 encoding for emoji bytes in encoded words
+
+## 6.9.0 2023-01-12
+
+-   Do not throw if failed to resolve IPv4 addresses
+-   Include EHLO extensions in the send response
+-   fix sendMail function: callback should be optional
+
+## 6.8.0 2022-09-28
+
+-   Add DNS timeout (huksley)
+-   add dns.REFUSED (lucagianfelici)
+
+## 6.7.8 2022-08-11
+
+-   Allow to use multiple Reply-To addresses
+
+## 6.7.7 2022-07-06
+
+-   Resolver fixes
+
+## 6.7.5 2022-05-04
+
+-   No changes, pushing a new README to npmjs.org
+
+## 6.7.4 2022-04-29
+
+-   Ensure compatibility with Node 18
+-   Replaced Travis with Github Actions
+
+## 6.7.3 2022-03-21
+
+-   Typo fixes
+-   Added stale issue automation fir Github
+-   Add Infomaniak config to well known service (popod)
+-   Update Outlook/Hotmail host in well known services (popod)
+-   fix: DSN recipient gets ignored (KornKalle)
+
+## 6.7.2 2021-11-26
+
+-   Fix proxies for account verification
+
+## 6.7.1 2021-11-15
+
+-   fix verify on ses-transport (stanofsky)
+
+## 6.7.0 2021-10-11
+
+-   Updated DNS resolving logic. If there are multiple responses for a A/AAAA record, then loop these randomly instead of only caching the first one
+
+## 6.6.5 2021-09-23
+
+-   Replaced Object.values() and Array.flat() with polyfills to allow using Nodemailer in Node v6+
+
+## 6.6.4 2021-09-22
+
+-   Better compatibility with IPv6-only SMTP hosts (oxzi)
+-   Fix ses verify for sdk v3 (hannesvdvreken)
+-   Added SECURITY.txt for contact info
+
+## 6.6.3 2021-07-14
+
+-   Do not show passwords in SMTP transaction logs. All passwords used in logging are replaced by `"/* secret */"`
+
+## 6.6.1 2021-05-23
+
+-   Fixed address formatting issue where newlines in an email address, if provided via address object, were not properly removed. Reported by tmazeika (#1289)
+
+## 6.6.0 2021-04-28
+
+-   Added new option `newline` for MailComposer
+-   aws ses connection verification (Ognjen Jevremovic)
+
+## 6.5.0 2021-02-26
+
+-   Pass through textEncoding to subnodes
+-   Added support for AWS SES v3 SDK
+-   Fixed tests
+
+## 6.4.18 2021-02-11
+
+-   Updated README
+
+## 6.4.17 2020-12-11
+
+-   Allow mixing attachments with caendar alternatives
+
+## 6.4.16 2020-11-12
+
+-   Applied updated prettier formating rules
+
+## 6.4.15 2020-11-06
+
+-   Minor changes in header key casing
+
+## 6.4.14 2020-10-14
+
+-   Disabled postinstall script
+
+## 6.4.13 2020-10-02
+
+-   Fix normalizeHeaderKey method for single node messages
+
+## 6.4.12 2020-09-30
+
+-   Better handling of attachment filenames that include quote symbols
+-   Includes all information from the oath2 error response in the error message (Normal Gaussian) [1787f227]
+
+## 6.4.11 2020-07-29
+
+-   Fixed escape sequence handling in address parsing
+
+## 6.4.10 2020-06-17
+
+-   Fixed RFC822 output for MailComposer when using invalid content-type value. Mostly relevant if message attachments have stragne content-type values set.
+
+## 6.4.7 2020-05-28
+
+-   Always set charset=utf-8 for Content-Type headers
+-   Catch error when using invalid crypto.sign input
+
+## 6.4.6 2020-03-20
+
+-   fix: `requeueAttempts=n` should requeue `n` times (Patrick Malouin) [a27ed2f7]
+
+## 6.4.4 2020-03-01
+
+-   Add `options.forceAuth` for SMTP (Patrick Malouin) [a27ed2f7]
+
+## 6.4.3 2020-02-22
+
+-   Added an option to specify max number of requeues when connection closes unexpectedly (Igor Sechyn) [8a927f5a]
+
+## 6.4.2 2019-12-11
+
+-   Fixed bug where array item was used with a potentially empty array
+
+## 6.4.1 2019-12-07
+
+-   Fix processing server output with unterminated responses
+
+## 6.4.0 2019-12-04
+
+-   Do not use auth if server does not advertise AUTH support [f419b09d]
+-   add dns.CONNREFUSED (Hiroyuki Okada) [5c4c8ca8]
+
+## 6.3.1 2019-10-09
+
+-   Ignore "end" events because it might be "error" after it (dex4er) [72bade9]
+-   Set username and password on the connection proxy object correctly (UsamaAshraf) [250b1a8]
+-   Support more DNS errors (madarche) [2391aa4]
+
+## 6.3.0 2019-07-14
+
+-   Added new option to pass a set of httpHeaders to be sent when fetching attachments. See [PR #1034](https://github.com/nodemailer/nodemailer/pull/1034)
+
+## 6.2.1 2019-05-24
+
+-   No changes. It is the same as 6.2.0 that was accidentally published as 6.2.1 to npm
+
+## 6.2.0 2019-05-24
+
+-   Added new option for addressparser: `flatten`. If true then ignores group names and returns a single list of all addresses
+
+## 6.1.1 2019-04-20
+
+-   Fixed regression bug with missing smtp `authMethod` property
+
+## 6.1.0 2019-04-06
+
+-   Added new message property `amp` for providing AMP4EMAIL content
+
+## 6.0.0 2019-03-25
+
+-   SMTPConnection: use removeListener instead of removeAllListeners (xr0master) [ddc4af15]
+    Using removeListener should fix memory leak with Node.js streams
+
+## 5.1.1 2019-01-09
+
+-   Added missing option argument for custom auth
+
+## 5.1.0 2019-01-09
+
+-   Official support for custom authentication methods and examples (examples/custom-auth-async.js and examples/custom-auth-cb.js)
+
+## 5.0.1 2019-01-09
+
+-   Fixed regression error to support Node versions lower than 6.11
+-   Added expiremental custom authentication support
+
+## 5.0.0 2018-12-28
+
+-   Start using dns.resolve() instead of dns.lookup() for resolving SMTP hostnames. Might be breaking change on some environments so upgrade with care
+-   Show more logs for renewing OAuth2 tokens, previously it was not possible to see what actually failed
+
+## 4.7.0 2018-11-19
+
+-   Cleaned up List-\* header generation
+-   Fixed 'full' return option for DSN (klaronix) [23b93a3b]
+-   Support promises `for mailcomposer.build()`
+
+## 4.6.8 2018-08-15
+
+-   Use first IP address from DNS resolution when using a proxy (Limbozz) [d4ca847c]
+-   Return raw email from SES transport (gabegorelick) [3aa08967]
+
+## 4.6.7 2018-06-15
+
+-   Added option `skipEncoding` to JSONTransport
+
+## 4.6.6 2018-06-10
+
+-   Fixes mime encoded-word compatibility issue with invalid clients like Zimbra
+
+## 4.6.5 2018-05-23
+
+-   Fixed broken DKIM stream in Node.js v10
+-   Updated error messages for SMTP responses to not include a newline
+
+## 4.6.4 2018-03-31
+
+-   Readded logo author link to README that was accidentally removed a while ago
+
+## 4.6.3 2018-03-13
+
+-   Removed unneeded dependency
+
+## 4.6.2 2018-03-06
+
+-   When redirecting URL calls then do not include original POST content
+
+## 4.6.1 2018-03-06
+
+-   Fixed Smtp connection freezing, when trying to send after close / quit (twawszczak) [73d3911c]
+
+## 4.6.0 2018-02-22
+
+-   Support socks module v2 in addition to v1 [e228bcb2]
+-   Fixed invalid promise return value when using createTestAccount [5524e627]
+-   Allow using local addresses [8f6fa35f]
+
+## 4.5.0 2018-02-21
+
+-   Added new message transport option `normalizeHeaderKey(key)=>normalizedKey` for custom header formatting
+
+## 4.4.2 2018-01-20
+
+-   Added sponsors section to README
+-   enclose encodeURIComponent in try..catch to handle invalid urls
+
+## 4.4.1 2017-12-08
+
+-   Better handling of unexpectedly dropping connections
+
+## 4.4.0 2017-11-10
+
+-   Changed default behavior for attachment option contentTransferEncoding. If it is unset then base64 encoding is used for the attachment. If it is set to false then previous default applies (base64 for most, 7bit for text)
+
+## 4.3.1 2017-10-25
+
+-   Fixed a confict with Electron.js where timers do not have unref method
+
+## 4.3.0 2017-10-23
+
+-   Added new mail object method `mail.normalize(cb)` that should make creating HTTP API based transports much easier
+
+## 4.2.0 2017-10-13
+
+-   Expose streamed messages size and timers in info response
+
+## v4.1.3 2017-10-06
+
+-   Allow generating preview links without calling createTestAccount first
+
+## v4.1.2 2017-10-03
+
+-   No actual changes. Needed to push updated README to npmjs
+
+## v4.1.1 2017-09-25
+
+-   Fixed JSONTransport attachment handling
+
+## v4.1.0 2017-08-28
+
+-   Added new methods `createTestAccount` and `getTestMessageUrl` to use autogenerated email accounts from https://Ethereal.email
+
+## v4.0.1 2017-04-13
+
+-   Fixed issue with LMTP and STARTTLS
+
+## v4.0.0 2017-04-06
+
+-   License changed from EUPLv1.1 to MIT
+
+## v3.1.8 2017-03-21
+
+-   Fixed invalid List-\* header generation
+
+## v3.1.7 2017-03-14
+
+-   Emit an error if STARTTLS ends with connection being closed
+
+## v3.1.6 2017-03-14
+
+-   Expose last server response for smtpConnection
+
+## v3.1.5 2017-03-08
+
+-   Fixed SES transport, added missing `response` value
+
+## v3.1.4 2017-02-26
+
+-   Fixed DKIM calculation for empty body
+-   Ensure linebreak after message content. This fixes DKIM signatures for non-multipart messages where input did not end with a newline
+
+## v3.1.3 2017-02-17
+
+-   Fixed missing `transport.verify()` methods for SES transport
+
+## v3.1.2 2017-02-17
+
+-   Added missing error handlers for Sendmail, SES and Stream transports. If a messages contained an invalid URL as attachment then these transports threw an uncatched error
+
+## v3.1.1 2017-02-13
+
+-   Fixed missing `transport.on('idle')` and `transport.isIdle()` methods for SES transports
+
+## v3.1.0 2017-02-13
+
+-   Added built-in transport for AWS SES. [Docs](http://localhost:1313/transports/ses/)
+-   Updated stream transport to allow building JSON strings. [Docs](http://localhost:1313/transports/stream/#json-transport)
+-   Added new method _mail.resolveAll_ that fetches all attachments and such to be able to more easily build API-based transports
+
+## v3.0.2 2017-02-04
+
+-   Fixed a bug with OAuth2 login where error callback was fired twice if getToken was not available.
+
+## v3.0.1 2017-02-03
+
+-   Fixed a bug where Nodemailer threw an exception if `disableFileAccess` option was used
+-   Added FLOSS [exception declaration](FLOSS_EXCEPTIONS.md)
+
+## v3.0.0 2017-01-31
+
+-   Initial version of Nodemailer 3
+
+This update brings a lot of breaking changes:
+
+-   License changed from MIT to **EUPL-1.1**. This was possible as the new version of Nodemailer is a major rewrite. The features I don't have ownership for, were removed or reimplemented. If there's still some snippets in the code that have vague ownership then notify <mailto:andris@kreata.ee> about the conflicting code and I'll fix it.
+-   Requires **Node.js v6+**
+-   All **templating is gone**. It was too confusing to use and to be really universal a huge list of different renderers would be required. Nodemailer is about email, not about parsing different template syntaxes
+-   **No NTLM authentication**. It was too difficult to re-implement. If you still need it then it would be possible to introduce a pluggable SASL interface where you could load the NTLM module in your own code and pass it to Nodemailer. Currently this is not possible.
+-   **OAuth2 authentication** is built in and has a different [configuration](https://nodemailer.com/smtp/oauth2/). You can use both user (3LO) and service (2LO) accounts to generate access tokens from Nodemailer. Additionally there's a new feature to authenticate differently for every message – useful if your application sends on behalf of different users instead of a single sender.
+-   **Improved Calendaring**. Provide an ical file to Nodemailer to send out [calendar events](https://nodemailer.com/message/calendar-events/).
+
+And also some non-breaking changes:
+
+-   All **dependencies were dropped**. There is exactly 0 dependencies needed to use Nodemailer. This brings the installation time of Nodemailer from NPM down to less than 2 seconds
+-   **Delivery status notifications** added to Nodemailer
+-   Improved and built-in **DKIM** signing of messages. Previously you needed an external module for this and it did quite a lousy job with larger messages
+-   **Stream transport** to return a RFC822 formatted message as a stream. Useful if you want to use Nodemailer as a preprocessor and not for actual delivery.
+-   **Sendmail** transport built-in, no need for external transport plugin
+
+See [Nodemailer.com](https://nodemailer.com/) for full documentation
+
+## 2.7.0 2016-12-08
+
+-   Bumped mailcomposer that generates encoded-words differently which might break some tests
+
+## 2.6.0 2016-09-05
+
+-   Added new options disableFileAccess and disableUrlAccess
+-   Fixed envelope handling where cc/bcc fields were ignored in the envelope object
+
+## 2.4.2 2016-05-25
+
+-   Removed shrinkwrap file. Seemed to cause more trouble than help
+
+## 2.4.1 2016-05-12
+
+-   Fixed outdated shrinkwrap file
+
+## 2.4.0 2016-05-11
+
+-   Bumped mailcomposer module to allow using `false` as attachment filename (suppresses filename usage)
+-   Added NTLM authentication support
+
+## 2.3.2 2016-04-11
+
+-   Bumped smtp transport modules to get newest smtp-connection that fixes SMTPUTF8 support for internationalized email addresses
+
+## 2.3.1 2016-04-08
+
+-   Bumped mailcomposer to have better support for message/822 attachments
+
+## 2.3.0 2016-03-03
+
+-   Fixed a bug with attachment filename that contains mixed unicode and dashes
+-   Added built-in support for proxies by providing a new SMTP option `proxy` that takes a proxy configuration url as its value
+-   Added option `transport` to dynamically load transport plugins
+-   Do not require globally installed grunt-cli
+
+## 2.2.1 2016-02-20
+
+-   Fixed a bug in SMTP requireTLS option that was broken
+
+## 2.2.0 2016-02-18
+
+-   Removed the need to use `clone` dependency
+-   Added new method `verify` to check SMTP configuration
+-   Direct transport uses STARTTLS by default, fallbacks to plaintext if STARTTLS fails
+-   Added new message option `list` for setting List-\* headers
+-   Add simple proxy support with `getSocket` method
+-   Added new message option `textEncoding`. If `textEncoding` is not set then detect best encoding automatically
+-   Added new message option `icalEvent` to embed iCalendar events. Example [here](examples/ical-event.js)
+-   Added new attachment option `raw` to use prepared MIME contents instead of generating a new one. This might be useful when you want to handcraft some parts of the message yourself, for example if you want to inject a PGP encrypted message as the contents of a MIME node
+-   Added new message option `raw` to use an existing MIME message instead of generating a new one
+
+## 2.1.0 2016-02-01
+
+Republishing 2.1.0-rc.1 as stable. To recap, here's the notable changes between v2.0 and v2.1:
+
+-   Implemented templating support. You can either use a simple built-in renderer or some external advanced renderer, eg. [node-email-templates](https://github.com/niftylettuce/node-email-templates). Templating [docs](http://nodemailer.com/2-0-0-beta/templating/).
+-   Updated smtp-pool to emit 'idle' events in order to handle message queue more effectively
+-   Updated custom header handling, works everywhere the same now, no differences between adding custom headers to the message or to an attachment
+
+## 2.1.0-rc.1 2016-01-25
+
+Sneaked in some new features even though it is already rc
+
+-   If a SMTP pool is closed while there are still messages in a queue, the message callbacks are invoked with an error
+-   In case of SMTP pool the transporter emits 'idle' when there is a free connection slot available
+-   Added method `isIdle()` that checks if a pool has still some free connection slots available
+
+## 2.1.0-rc.0 2016-01-20
+
+-   Bumped dependency versions
+
+## 2.1.0-beta.3 2016-01-20
+
+-   Added support for node-email-templates templating in addition to the built-in renderer
+
+## 2.1.0-beta.2 2016-01-20
+
+-   Implemented simple templating feature
+
+## 2.1.0-beta.1 2016-01-20
+
+-   Allow using prepared header values that are not folded or encoded by Nodemailer
+
+## 2.1.0-beta.0 2016-01-20
+
+-   Use the same header custom structure for message root, attachments and alternatives
+-   Ensure that Message-Id exists when accessing message
+-   Allow using array values for custom headers (inserts every value in its own row)
+
+## 2.0.0 2016-01-11
+
+-   Released rc.2 as stable
+
+## 2.0.0-rc.2 2016-01-04
+
+-   Locked dependencies
+
+## 2.0.0-beta.2 2016-01-04
+
+-   Updated documentation to reflect changes with SMTP handling
+-   Use beta versions for smtp/pool/direct transports
+-   Updated logging
+
+## 2.0.0-beta.1 2016-01-03
+
+-   Use bunyan compatible logger instead of the emit('log') style
+-   Outsourced some reusable methods to nodemailer-shared
+-   Support setting direct/smtp/pool with the default configuration
+
+## 2.0.0-beta.0 2015-12-31
+
+-   Stream errors are not silently swallowed
+-   Do not use format=flowed
+-   Use nodemailer-fetch to fetch URL streams
+-   jshint replaced by eslint
+
+## v1.11.0 2015-12-28
+
+Allow connection url based SMTP configurations
+
+## v1.10.0 2015-11-13
+
+Added `defaults` argument for `createTransport` to predefine commonn values (eg. `from` address)
+
+## v1.9.0 2015-11-09
+
+Returns a Promise for `sendMail` if callback is not defined
+
+## v1.8.0 2015-10-08
+
+Added priority option (high, normal, low) for setting Importance header
+
+## v1.7.0 2015-10-06
+
+Replaced hyperquest with needle. Fixes issues with compressed data and redirects
+
+## v1.6.0 2015-10-05
+
+Maintenance release. Bumped dependencies to get support for unicode filenames for QQ webmail and to support emoji in filenames
+
+## v1.5.0 2015-09-24
+
+Use mailcomposer instead of built in solution to generate message sources. Bumped libmime gives better quoted-printable handling.
+
+## v1.4.0 2015-06-27
+
+Added new message option `watchHtml` to specify Apple Watch specific HTML part of the message. See [this post](https://litmus.com/blog/how-to-send-hidden-version-email-apple-watch) for details
+
+## v1.3.4 2015-04-25
+
+Maintenance release, bumped buildmail version to get fixed format=flowed handling
+
+## v1.3.3 2015-04-25
+
+Maintenance release, bumped dependencies
+
+## v1.3.2 2015-03-09
+
+Maintenance release, upgraded dependencies. Replaced simplesmtp based tests with smtp-server based ones.
+
+## v1.3.0 2014-09-12
+
+Maintenance release, upgrades buildmail and libmime. Allows using functions as transform plugins and fixes issue with unicode filenames in Gmail.
+
+## v1.2.2 2014-09-05
+
+Proper handling of data uris as attachments. Attachment `path` property can also be defined as a data uri, not just regular url or file path.
+
+## v1.2.1 2014-08-21
+
+Bumped libmime and mailbuild versions to properly handle filenames with spaces (short ascii only filenames with spaces were left unquoted).
+
+## v1.2.0 2014-08-18
+
+Allow using encoded strings as attachments. Added new property `encoding` which defines the encoding used for a `content` string. If encoding is set, the content value is converted to a Buffer value using the defined encoding before usage. Useful for including binary attachemnts in JSON formatted email objects.
+
+## v1.1.2 2014-08-18
+
+Return deprecatin error for v0.x style configuration
+
+## v1.1.1 2014-07-30
+
+Bumped nodemailer-direct-transport dependency. Updated version includes a bugfix for Stream nodes handling. Important only if use direct-transport with Streams (not file paths or urls) as attachment content.
+
+## v1.1.0 2014-07-29
+
+Added new method `resolveContent()` to get the html/text/attachment content as a String or Buffer.
+
+## v1.0.4 2014-07-23
+
+Bugfix release. HTML node was instered twice if the message consisted of a HTML content (but no text content) + at least one attachment with CID + at least one attachment without CID. In this case the HTML node was inserted both to the root level multipart/mixed section and to the multipart/related sub section
+
+## v1.0.3 2014-07-16
+
+Fixed a bug where Nodemailer crashed if the message content type was multipart/related
+
+## v1.0.2 2014-07-16
+
+Upgraded nodemailer-smtp-transport to 0.1.11\. The docs state that for SSL you should use 'secure' option but the underlying smtp-connection module used 'secureConnection' for this purpose. Fixed smpt-connection to match the docs.
+
+## v1.0.1 2014-07-15
+
+Implemented missing #close method that is passed to the underlying transport object. Required by the smtp pool.
+
+## v1.0.0 2014-07-15
+
+Total rewrite. See migration guide here: <http://www.andrisreinman.com/nodemailer-v1-0/#migrationguide>
+
+## v0.7.1 2014-07-09
+
+-   Upgraded aws-sdk to 2.0.5
+
+## v0.7.0 2014-06-17
+
+-   Bumped version to v0.7.0
+-   Fix AWS-SES usage [5b6bc144]
+-   Replace current SES with new SES using AWS-SDK (Elanorr) [c79d797a]
+-   Updated README.md about Node Email Templates (niftylettuce) [e52bef81]
+
+## v0.6.5 2014-05-15
+
+-   Bumped version to v0.6.5
+-   Use tildes instead of carets for dependency listing [5296ce41]
+-   Allow clients to set a custom identityString (venables) [5373287d]
+-   bugfix (adding "-i" to sendmail command line for each new mail) by copying this.args (vrodic) [05a8a9a3]
+-   update copyright (gdi2290) [3a6cba3a]
+
+## v0.6.4 2014-05-13
+
+-   Bumped version to v0.6.4
+-   added npmignore, bumped dependencies [21bddcd9]
+-   Add AOL to well-known services (msouce) [da7dd3b7]
+
+## v0.6.3 2014-04-16
+
+-   Bumped version to v0.6.3
+-   Upgraded simplesmtp dependency [dd367f59]
+
+## v0.6.2 2014-04-09
+
+-   Bumped version to v0.6.2
+-   Added error option to Stub transport [c423acad]
+-   Use SVG npm badge (t3chnoboy) [677117b7]
+-   add SendCloud to well known services (haio) [43c358e0]
+-   High-res build-passing and NPM module badges (sahat) [9fdc37cd]
+
+## v0.6.1 2014-01-26
+
+-   Bumped version to v0.6.1
+-   Do not throw on multiple errors from sendmail command [c6e2cd12]
+-   Do not require callback for pickup, fixes #238 [93eb3214]
+-   Added AWSSecurityToken information to README, fixes #235 [58e921d1]
+-   Added Nodemailer logo [06b7d1a8]
+
+## v0.6.0 2013-12-30
+
+-   Bumped version to v0.6.0
+-   Allow defining custom transport methods [ec5b48ce]
+-   Return messageId with responseObject for all built in transport methods [74445cec]
+-   Bumped dependency versions for mailcomposer and readable-stream [9a034c34]
+-   Changed pickup argument name to 'directory' [01c3ea53]
+-   Added support for IIS pickup directory with PICKUP transport (philipproplesch) [36940b59..360a2878]
+-   Applied common styles [9e93a409]
+-   Updated readme [c78075e7]
+
+## v0.5.15 2013-12-13
+
+-   bumped version to v0.5.15
+-   Updated README, added global options info for setting uo transports [554bb0e5]
+-   Resolve public hostname, if resolveHostname property for a transport object is set to `true` [9023a6e1..4c66b819]
+
+## v0.5.14 2013-12-05
+
+-   bumped version to v0.5.14
+-   Expose status for direct messages [f0312df6]
+-   Allow to skip the X-Mailer header if xMailer value is set to 'false' [f2c20a68]
+
+## v0.5.13 2013-12-03
+
+-   bumped version to v0.5.13
+-   Use the name property from the transport object to use for the domain part of message-id values (1598eee9)
+
+## v0.5.12 2013-12-02
+
+-   bumped version to v0.5.12
+-   Expose transport method and transport module version if available [a495106e]
+-   Added 'he' module instead of using custom html entity decoding [c197d102]
+-   Added xMailer property for transport configuration object to override X-Mailer value [e8733a61]
+-   Updated README, added description for 'mail' method [e1f5f3a6]
+
+## v0.5.11 2013-11-28
+
+-   bumped version to v0.5.11
+-   Updated mailcomposer version. Replaces ent with he [6a45b790e]
+
+## v0.5.10 2013-11-26
+
+-   bumped version to v0.5.10
+-   added shorthand function mail() for direct transport type [88129bd7]
+-   minor tweaks and typo fixes [f797409e..ceac0ca4]
+
+## v0.5.9 2013-11-25
+
+-   bumped version to v0.5.9
+-   Update for 'direct' handling [77b84e2f]
+-   do not require callback to be provided for 'direct' type [ec51c79f]
+
+## v0.5.8 2013-11-22
+
+-   bumped version to v0.5.8
+-   Added support for 'direct' transport [826f226d..0dbbcbbc]
+
+## v0.5.7 2013-11-18
+
+-   bumped version to v0.5.7
+-   Replace \r\n by \n in Sendmail transport (rolftimmermans) [fed2089e..616ec90c] A lot of sendmail implementations choke on \r\n newlines and require \n This commit addresses this by transforming all \r\n sequences passed to the sendmail command with \n
+
+## v0.5.6 2013-11-15
+
+-   bumped version to v0.5.6
+-   Upgraded mailcomposer dependency to 0.2.4 [e5ff9c40]
+-   Removed noCR option [e810d1b8]
+-   Update wellknown.js, added FastMail (k-j-kleist) [cf930f6d]
+
+## v0.5.5 2013-10-30
+
+-   bumped version to v0.5.5
+-   Updated mailcomposer dependnecy version to 0.2.3
+-   Remove legacy code - node v0.4 is not supported anymore anyway
+-   Use hostname (autodetected or from the options.name property) for Message-Id instead of "Nodemailer" (helps a bit when messages are identified as spam)
+-   Added maxMessages info to README
+
+## v0.5.4 2013-10-29
+
+-   bumped version to v0.5.4
+-   added "use strict" statements
+-   Added DSN info to README
+-   add support for QQ enterprise email (coderhaoxin)
+-   Add a Bitdeli Badge to README
+-   DSN options Passthrought into simplesmtp. (irvinzz)
+
+## v0.5.3 2013-10-03
+
+-   bumped version v0.5.3
+-   Using a stub transport to prevent sendmail from being called during a test. (jsdevel)
+-   closes #78: sendmail transport does not work correctly on Unix machines. (jsdevel)
+-   Updated PaaS Support list to include Modulus. (fiveisprime)
+-   Translate self closing break tags to newline (kosmasgiannis)
+-   fix typos (aeosynth)
+
+## v0.5.2 2013-07-25
+
+-   bumped version v0.5.2
+-   Merge pull request #177 from MrSwitch/master Fixing Amazon SES, fatal error caused by bad connection
diff --git a/backend/node_modules/nodemailer/CODE_OF_CONDUCT.md b/backend/node_modules/nodemailer/CODE_OF_CONDUCT.md
new file mode 100644
index 0000000..e6895ed
--- /dev/null
+++ b/backend/node_modules/nodemailer/CODE_OF_CONDUCT.md
@@ -0,0 +1,76 @@
+# Contributor Covenant Code of Conduct
+
+## Our Pledge
+
+In the interest of fostering an open and welcoming environment, we as
+contributors and maintainers pledge to making participation in our project and
+our community a harassment-free experience for everyone, regardless of age, body
+size, disability, ethnicity, sex characteristics, gender identity and expression,
+level of experience, education, socio-economic status, nationality, personal
+appearance, race, religion, or sexual identity and orientation.
+
+## Our Standards
+
+Examples of behavior that contributes to creating a positive environment
+include:
+
+* Using welcoming and inclusive language
+* Being respectful of differing viewpoints and experiences
+* Gracefully accepting constructive criticism
+* Focusing on what is best for the community
+* Showing empathy towards other community members
+
+Examples of unacceptable behavior by participants include:
+
+* The use of sexualized language or imagery and unwelcome sexual attention or
+ advances
+* Trolling, insulting/derogatory comments, and personal or political attacks
+* Public or private harassment
+* Publishing others' private information, such as a physical or electronic
+ address, without explicit permission
+* Other conduct which could reasonably be considered inappropriate in a
+ professional setting
+
+## Our Responsibilities
+
+Project maintainers are responsible for clarifying the standards of acceptable
+behavior and are expected to take appropriate and fair corrective action in
+response to any instances of unacceptable behavior.
+
+Project maintainers have the right and responsibility to remove, edit, or
+reject comments, commits, code, wiki edits, issues, and other contributions
+that are not aligned to this Code of Conduct, or to ban temporarily or
+permanently any contributor for other behaviors that they deem inappropriate,
+threatening, offensive, or harmful.
+
+## Scope
+
+This Code of Conduct applies both within project spaces and in public spaces
+when an individual is representing the project or its community. Examples of
+representing a project or community include using an official project e-mail
+address, posting via an official social media account, or acting as an appointed
+representative at an online or offline event. Representation of a project may be
+further defined and clarified by project maintainers.
+
+## Enforcement
+
+Instances of abusive, harassing, or otherwise unacceptable behavior may be
+reported by contacting the project team at info@nodemailer.com. All
+complaints will be reviewed and investigated and will result in a response that
+is deemed necessary and appropriate to the circumstances. The project team is
+obligated to maintain confidentiality with regard to the reporter of an incident.
+Further details of specific enforcement policies may be posted separately.
+
+Project maintainers who do not follow or enforce the Code of Conduct in good
+faith may face temporary or permanent repercussions as determined by other
+members of the project's leadership.
+
+## Attribution
+
+This Code of Conduct is adapted from the [Contributor Covenant][homepage], version 1.4,
+available at https://www.contributor-covenant.org/version/1/4/code-of-conduct.html
+
+[homepage]: https://www.contributor-covenant.org
+
+For answers to common questions about this code of conduct, see
+https://www.contributor-covenant.org/faq
diff --git a/backend/node_modules/nodemailer/LICENSE b/backend/node_modules/nodemailer/LICENSE
new file mode 100644
index 0000000..fdfc967
--- /dev/null
+++ b/backend/node_modules/nodemailer/LICENSE
@@ -0,0 +1,16 @@
+Copyright (c) 2011-2023 Andris Reinman
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
diff --git a/backend/node_modules/nodemailer/README.md b/backend/node_modules/nodemailer/README.md
new file mode 100644
index 0000000..1c13a86
--- /dev/null
+++ b/backend/node_modules/nodemailer/README.md
@@ -0,0 +1,86 @@
+# Nodemailer
+
+[![Nodemailer](https://raw.githubusercontent.com/nodemailer/nodemailer/master/assets/nm_logo_200x136.png)](https://nodemailer.com/about/)
+
+Send emails from Node.js – easy as cake! 🍰✉️
+
+[![NPM](https://nodei.co/npm/nodemailer.png?downloads=true&downloadRank=true&stars=true)](https://nodemailer.com/about/)
+
+See [nodemailer.com](https://nodemailer.com/) for documentation and terms.
+
+> [!TIP]
+> Check out **[EmailEngine](https://emailengine.app/?utm_source=github-nodemailer&utm_campaign=nodemailer&utm_medium=readme-link)** – a self-hosted email gateway that allows making **REST requests against IMAP and SMTP servers**. EmailEngine also sends webhooks whenever something changes on the registered accounts.\
+> \
+> Using the email accounts registered with EmailEngine, you can receive and [send emails](https://emailengine.app/sending-emails?utm_source=github-nodemailer&utm_campaign=nodemailer&utm_medium=readme-link). EmailEngine supports OAuth2, delayed sends, opens and clicks tracking, bounce detection, etc. All on top of regular email accounts without an external MTA service.
+
+## Having an issue?
+
+#### First review the docs
+
+Documentation for Nodemailer can be found at [nodemailer.com](https://nodemailer.com/about/).
+
+#### Nodemailer throws a SyntaxError for "..."
+
+You are using an older Node.js version than v6.0. Upgrade Node.js to get support for the spread operator. Nodemailer supports all Node.js versions starting from Node.js@v6.0.0.
+
+#### I'm having issues with Gmail
+
+Gmail either works well, or it does not work at all. It is probably easier to switch to an alternative service instead of fixing issues with Gmail. If Gmail does not work for you, then don't use it. Read more about it [here](https://nodemailer.com/usage/using-gmail/).
+
+#### I get ETIMEDOUT errors
+
+Check your firewall settings. Timeout usually occurs when you try to open a connection to a firewalled port either on the server or on your machine. Some ISPs also block email ports to prevent spamming.
+
+#### Nodemailer works on one machine but not in another
+
+It's either a firewall issue, or your SMTP server blocks authentication attempts from some servers.
+
+#### I get TLS errors
+
+-   If you are running the code on your machine, check your antivirus settings. Antiviruses often mess around with email ports usage. Node.js might not recognize the MITM cert your antivirus is using.
+-   Latest Node versions allow only TLS versions 1.2 and higher. Some servers might still use TLS 1.1 or lower. Check Node.js docs on how to get correct TLS support for your app. You can change this with [tls.minVersion](https://nodejs.org/dist/latest-v16.x/docs/api/tls.html#tls_tls_createsecurecontext_options) option
+-   You might have the wrong value for the `secure` option. This should be set to `true` only for port 465. For every other port, it should be `false`. Setting it to `false` does not mean that Nodemailer would not use TLS. Nodemailer would still try to upgrade the connection to use TLS if the server supports it.
+-   Older Node versions do not fully support the certificate chain of the newest Let's Encrypt certificates. Either set [tls.rejectUnauthorized](https://nodejs.org/dist/latest-v16.x/docs/api/tls.html#tlsconnectoptions-callback) to `false` to skip chain verification or upgrade your Node version
+
+```js
+let configOptions = {
+    host: "smtp.example.com",
+    port: 587,
+    tls: {
+        rejectUnauthorized: true,
+        minVersion: "TLSv1.2"
+    }
+}
+```
+
+#### I have issues with DNS / hosts file
+
+Node.js uses [c-ares](https://nodejs.org/en/docs/meta/topics/dependencies/#c-ares) to resolve domain names, not the DNS library provided by the system, so if you have some custom DNS routing set up, it might be ignored. Nodemailer runs [dns.resolve4()](https://nodejs.org/dist/latest-v16.x/docs/api/dns.html#dnsresolve4hostname-options-callback) and [dns.resolve6()](https://nodejs.org/dist/latest-v16.x/docs/api/dns.html#dnsresolve6hostname-options-callback) to resolve hostname into an IP address. If both calls fail, then Nodemailer will fall back to [dns.lookup()](https://nodejs.org/dist/latest-v16.x/docs/api/dns.html#dnslookuphostname-options-callback). If this does not work for you, you can hard code the IP address into the configuration like shown below. In that case, Nodemailer would not perform any DNS lookups.
+
+```js
+let configOptions = {
+    host: "1.2.3.4",
+    port: 465,
+    secure: true,
+    tls: {
+        // must provide server name, otherwise TLS certificate check will fail
+        servername: "example.com"
+    }
+}
+```
+
+#### I have an issue with TypeScript types
+
+Nodemailer has official support for Node.js only. For anything related to TypeScript, you need to directly contact the authors of the [type definitions](https://www.npmjs.com/package/@types/nodemailer).
+
+#### I have a different problem
+
+If you are having issues with Nodemailer, then the best way to find help would be [Stack Overflow](https://stackoverflow.com/search?q=nodemailer) or revisit the [docs](https://nodemailer.com/about/).
+
+### License
+
+Nodemailer is licensed under the **MIT No Attribution license**
+
+---
+
+The Nodemailer logo was designed by [Sven Kristjansen](https://www.behance.net/kristjansen).
diff --git a/backend/node_modules/nodemailer/SECURITY.txt b/backend/node_modules/nodemailer/SECURITY.txt
new file mode 100644
index 0000000..27a54d3
--- /dev/null
+++ b/backend/node_modules/nodemailer/SECURITY.txt
@@ -0,0 +1,22 @@
+-----BEGIN PGP SIGNED MESSAGE-----
+Hash: SHA256
+
+Contact: mailto:andris@reinman.eu
+Encryption: https://keys.openpgp.org/vks/v1/by-fingerprint/5D952A46E1D8C931F6364E01DC6C83F4D584D364
+Preferred-Languages: en, et
+-----BEGIN PGP SIGNATURE-----
+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+=BUZr
+-----END PGP SIGNATURE-----
diff --git a/backend/node_modules/nodemailer/lib/addressparser/index.js b/backend/node_modules/nodemailer/lib/addressparser/index.js
new file mode 100644
index 0000000..73e39e5
--- /dev/null
+++ b/backend/node_modules/nodemailer/lib/addressparser/index.js
@@ -0,0 +1,327 @@
+'use strict';
+
+/**
+ * Converts tokens for a single address into an address object
+ *
+ * @param {Array} tokens Tokens object
+ * @return {Object} Address object
+ */
+function _handleAddress(tokens) {
+    let isGroup = false;
+    let state = 'text';
+    let address;
+    let addresses = [];
+    let data = {
+        address: [],
+        comment: [],
+        group: [],
+        text: []
+    };
+    let i;
+    let len;
+
+    // Filter out <addresses>, (comments) and regular text
+    for (i = 0, len = tokens.length; i < len; i++) {
+        let token = tokens[i];
+        let prevToken = i ? tokens[i - 1] : null;
+        if (token.type === 'operator') {
+            switch (token.value) {
+                case '<':
+                    state = 'address';
+                    break;
+                case '(':
+                    state = 'comment';
+                    break;
+                case ':':
+                    state = 'group';
+                    isGroup = true;
+                    break;
+                default:
+                    state = 'text';
+                    break;
+            }
+        } else if (token.value) {
+            if (state === 'address') {
+                // handle use case where unquoted name includes a "<"
+                // Apple Mail truncates everything between an unexpected < and an address
+                // and so will we
+                token.value = token.value.replace(/^[^<]*<\s*/, '');
+            }
+
+            if (prevToken && prevToken.noBreak && data[state].length) {
+                // join values
+                data[state][data[state].length - 1] += token.value;
+            } else {
+                data[state].push(token.value);
+            }
+        }
+    }
+
+    // If there is no text but a comment, replace the two
+    if (!data.text.length && data.comment.length) {
+        data.text = data.comment;
+        data.comment = [];
+    }
+
+    if (isGroup) {
+        // http://tools.ietf.org/html/rfc2822#appendix-A.1.3
+        data.text = data.text.join(' ');
+        addresses.push({
+            name: data.text || (address && address.name),
+            group: data.group.length ? addressparser(data.group.join(',')) : []
+        });
+    } else {
+        // If no address was found, try to detect one from regular text
+        if (!data.address.length && data.text.length) {
+            for (i = data.text.length - 1; i >= 0; i--) {
+                if (data.text[i].match(/^[^@\s]+@[^@\s]+$/)) {
+                    data.address = data.text.splice(i, 1);
+                    break;
+                }
+            }
+
+            let _regexHandler = function (address) {
+                if (!data.address.length) {
+                    data.address = [address.trim()];
+                    return ' ';
+                } else {
+                    return address;
+                }
+            };
+
+            // still no address
+            if (!data.address.length) {
+                for (i = data.text.length - 1; i >= 0; i--) {
+                    // fixed the regex to parse email address correctly when email address has more than one @
+                    data.text[i] = data.text[i].replace(/\s*\b[^@\s]+@[^\s]+\b\s*/, _regexHandler).trim();
+                    if (data.address.length) {
+                        break;
+                    }
+                }
+            }
+        }
+
+        // If there's still is no text but a comment exixts, replace the two
+        if (!data.text.length && data.comment.length) {
+            data.text = data.comment;
+            data.comment = [];
+        }
+
+        // Keep only the first address occurence, push others to regular text
+        if (data.address.length > 1) {
+            data.text = data.text.concat(data.address.splice(1));
+        }
+
+        // Join values with spaces
+        data.text = data.text.join(' ');
+        data.address = data.address.join(' ');
+
+        if (!data.address && isGroup) {
+            return [];
+        } else {
+            address = {
+                address: data.address || data.text || '',
+                name: data.text || data.address || ''
+            };
+
+            if (address.address === address.name) {
+                if ((address.address || '').match(/@/)) {
+                    address.name = '';
+                } else {
+                    address.address = '';
+                }
+            }
+
+            addresses.push(address);
+        }
+    }
+
+    return addresses;
+}
+
+/**
+ * Creates a Tokenizer object for tokenizing address field strings
+ *
+ * @constructor
+ * @param {String} str Address field string
+ */
+class Tokenizer {
+    constructor(str) {
+        this.str = (str || '').toString();
+        this.operatorCurrent = '';
+        this.operatorExpecting = '';
+        this.node = null;
+        this.escaped = false;
+
+        this.list = [];
+        /**
+         * Operator tokens and which tokens are expected to end the sequence
+         */
+        this.operators = {
+            '"': '"',
+            '(': ')',
+            '<': '>',
+            ',': '',
+            ':': ';',
+            // Semicolons are not a legal delimiter per the RFC2822 grammar other
+            // than for terminating a group, but they are also not valid for any
+            // other use in this context.  Given that some mail clients have
+            // historically allowed the semicolon as a delimiter equivalent to the
+            // comma in their UI, it makes sense to treat them the same as a comma
+            // when used outside of a group.
+            ';': ''
+        };
+    }
+
+    /**
+     * Tokenizes the original input string
+     *
+     * @return {Array} An array of operator|text tokens
+     */
+    tokenize() {
+        let list = [];
+
+        for (let i = 0, len = this.str.length; i < len; i++) {
+            let chr = this.str.charAt(i);
+            let nextChr = i < len - 1 ? this.str.charAt(i + 1) : null;
+            this.checkChar(chr, nextChr);
+        }
+
+        this.list.forEach(node => {
+            node.value = (node.value || '').toString().trim();
+            if (node.value) {
+                list.push(node);
+            }
+        });
+
+        return list;
+    }
+
+    /**
+     * Checks if a character is an operator or text and acts accordingly
+     *
+     * @param {String} chr Character from the address field
+     */
+    checkChar(chr, nextChr) {
+        if (this.escaped) {
+            // ignore next condition blocks
+        } else if (chr === this.operatorExpecting) {
+            this.node = {
+                type: 'operator',
+                value: chr
+            };
+
+            if (nextChr && ![' ', '\t', '\r', '\n', ',', ';'].includes(nextChr)) {
+                this.node.noBreak = true;
+            }
+
+            this.list.push(this.node);
+            this.node = null;
+            this.operatorExpecting = '';
+            this.escaped = false;
+
+            return;
+        } else if (!this.operatorExpecting && chr in this.operators) {
+            this.node = {
+                type: 'operator',
+                value: chr
+            };
+            this.list.push(this.node);
+            this.node = null;
+            this.operatorExpecting = this.operators[chr];
+            this.escaped = false;
+            return;
+        } else if (['"', "'"].includes(this.operatorExpecting) && chr === '\\') {
+            this.escaped = true;
+            return;
+        }
+
+        if (!this.node) {
+            this.node = {
+                type: 'text',
+                value: ''
+            };
+            this.list.push(this.node);
+        }
+
+        if (chr === '\n') {
+            // Convert newlines to spaces. Carriage return is ignored as \r and \n usually
+            // go together anyway and there already is a WS for \n. Lone \r means something is fishy.
+            chr = ' ';
+        }
+
+        if (chr.charCodeAt(0) >= 0x21 || [' ', '\t'].includes(chr)) {
+            // skip command bytes
+            this.node.value += chr;
+        }
+
+        this.escaped = false;
+    }
+}
+
+/**
+ * Parses structured e-mail addresses from an address field
+ *
+ * Example:
+ *
+ *    'Name <address@domain>'
+ *
+ * will be converted to
+ *
+ *     [{name: 'Name', address: 'address@domain'}]
+ *
+ * @param {String} str Address field
+ * @return {Array} An array of address objects
+ */
+function addressparser(str, options) {
+    options = options || {};
+
+    let tokenizer = new Tokenizer(str);
+    let tokens = tokenizer.tokenize();
+
+    let addresses = [];
+    let address = [];
+    let parsedAddresses = [];
+
+    tokens.forEach(token => {
+        if (token.type === 'operator' && (token.value === ',' || token.value === ';')) {
+            if (address.length) {
+                addresses.push(address);
+            }
+            address = [];
+        } else {
+            address.push(token);
+        }
+    });
+
+    if (address.length) {
+        addresses.push(address);
+    }
+
+    addresses.forEach(address => {
+        address = _handleAddress(address);
+        if (address.length) {
+            parsedAddresses = parsedAddresses.concat(address);
+        }
+    });
+
+    if (options.flatten) {
+        let addresses = [];
+        let walkAddressList = list => {
+            list.forEach(address => {
+                if (address.group) {
+                    return walkAddressList(address.group);
+                } else {
+                    addresses.push(address);
+                }
+            });
+        };
+        walkAddressList(parsedAddresses);
+        return addresses;
+    }
+
+    return parsedAddresses;
+}
+
+// expose to the world
+module.exports = addressparser;
diff --git a/backend/node_modules/nodemailer/lib/base64/index.js b/backend/node_modules/nodemailer/lib/base64/index.js
new file mode 100644
index 0000000..c23becc
--- /dev/null
+++ b/backend/node_modules/nodemailer/lib/base64/index.js
@@ -0,0 +1,139 @@
+'use strict';
+
+const Transform = require('stream').Transform;
+
+/**
+ * Encodes a Buffer into a base64 encoded string
+ *
+ * @param {Buffer} buffer Buffer to convert
+ * @returns {String} base64 encoded string
+ */
+function encode(buffer) {
+    if (typeof buffer === 'string') {
+        buffer = Buffer.from(buffer, 'utf-8');
+    }
+
+    return buffer.toString('base64');
+}
+
+/**
+ * Adds soft line breaks to a base64 string
+ *
+ * @param {String} str base64 encoded string that might need line wrapping
+ * @param {Number} [lineLength=76] Maximum allowed length for a line
+ * @returns {String} Soft-wrapped base64 encoded string
+ */
+function wrap(str, lineLength) {
+    str = (str || '').toString();
+    lineLength = lineLength || 76;
+
+    if (str.length <= lineLength) {
+        return str;
+    }
+
+    let result = [];
+    let pos = 0;
+    let chunkLength = lineLength * 1024;
+    while (pos < str.length) {
+        let wrappedLines = str.substr(pos, chunkLength).replace(new RegExp('.{' + lineLength + '}', 'g'), '$&\r\n');
+        result.push(wrappedLines);
+        pos += chunkLength;
+    }
+
+    return result.join('');
+}
+
+/**
+ * Creates a transform stream for encoding data to base64 encoding
+ *
+ * @constructor
+ * @param {Object} options Stream options
+ * @param {Number} [options.lineLength=76] Maximum length for lines, set to false to disable wrapping
+ */
+class Encoder extends Transform {
+    constructor(options) {
+        super();
+        this.options = options || {};
+
+        if (this.options.lineLength !== false) {
+            this.options.lineLength = this.options.lineLength || 76;
+        }
+
+        this._curLine = '';
+        this._remainingBytes = false;
+
+        this.inputBytes = 0;
+        this.outputBytes = 0;
+    }
+
+    _transform(chunk, encoding, done) {
+        if (encoding !== 'buffer') {
+            chunk = Buffer.from(chunk, encoding);
+        }
+
+        if (!chunk || !chunk.length) {
+            return setImmediate(done);
+        }
+
+        this.inputBytes += chunk.length;
+
+        if (this._remainingBytes && this._remainingBytes.length) {
+            chunk = Buffer.concat([this._remainingBytes, chunk], this._remainingBytes.length + chunk.length);
+            this._remainingBytes = false;
+        }
+
+        if (chunk.length % 3) {
+            this._remainingBytes = chunk.slice(chunk.length - (chunk.length % 3));
+            chunk = chunk.slice(0, chunk.length - (chunk.length % 3));
+        } else {
+            this._remainingBytes = false;
+        }
+
+        let b64 = this._curLine + encode(chunk);
+
+        if (this.options.lineLength) {
+            b64 = wrap(b64, this.options.lineLength);
+
+            let lastLF = b64.lastIndexOf('\n');
+            if (lastLF < 0) {
+                this._curLine = b64;
+                b64 = '';
+            } else {
+                this._curLine = b64.substring(lastLF + 1);
+                b64 = b64.substring(0, lastLF + 1);
+
+                if (b64 && !b64.endsWith('\r\n')) {
+                    b64 += '\r\n';
+                }
+            }
+        } else {
+            this._curLine = '';
+        }
+
+        if (b64) {
+            this.outputBytes += b64.length;
+            this.push(Buffer.from(b64, 'ascii'));
+        }
+
+        setImmediate(done);
+    }
+
+    _flush(done) {
+        if (this._remainingBytes && this._remainingBytes.length) {
+            this._curLine += encode(this._remainingBytes);
+        }
+
+        if (this._curLine) {
+            this.outputBytes += this._curLine.length;
+            this.push(Buffer.from(this._curLine, 'ascii'));
+            this._curLine = '';
+        }
+        done();
+    }
+}
+
+module.exports = {
+    encode,
+    wrap,
+    Encoder
+};
diff --git a/backend/node_modules/nodemailer/lib/dkim/index.js b/backend/node_modules/nodemailer/lib/dkim/index.js
new file mode 100644
index 0000000..c138bca
--- /dev/null
+++ b/backend/node_modules/nodemailer/lib/dkim/index.js
@@ -0,0 +1,251 @@
+'use strict';
+
+// FIXME:
+// replace this Transform mess with a method that pipes input argument to output argument
+
+const MessageParser = require('./message-parser');
+const RelaxedBody = require('./relaxed-body');
+const sign = require('./sign');
+const PassThrough = require('stream').PassThrough;
+const fs = require('fs');
+const path = require('path');
+const crypto = require('crypto');
+
+const DKIM_ALGO = 'sha256';
+const MAX_MESSAGE_SIZE = 2 * 1024 * 1024; // buffer messages larger than this to disk
+
+/*
+// Usage:
+
+let dkim = new DKIM({
+    domainName: 'example.com',
+    keySelector: 'key-selector',
+    privateKey,
+    cacheDir: '/tmp'
+});
+dkim.sign(input).pipe(process.stdout);
+
+// Where inputStream is a rfc822 message (either a stream, string or Buffer)
+// and outputStream is a DKIM signed rfc822 message
+*/
+
+class DKIMSigner {
+    constructor(options, keys, input, output) {
+        this.options = options || {};
+        this.keys = keys;
+
+        this.cacheTreshold = Number(this.options.cacheTreshold) || MAX_MESSAGE_SIZE;
+        this.hashAlgo = this.options.hashAlgo || DKIM_ALGO;
+
+        this.cacheDir = this.options.cacheDir || false;
+
+        this.chunks = [];
+        this.chunklen = 0;
+        this.readPos = 0;
+        this.cachePath = this.cacheDir ? path.join(this.cacheDir, 'message.' + Date.now() + '-' + crypto.randomBytes(14).toString('hex')) : false;
+        this.cache = false;
+
+        this.headers = false;
+        this.bodyHash = false;
+        this.parser = false;
+        this.relaxedBody = false;
+
+        this.input = input;
+        this.output = output;
+        this.output.usingCache = false;
+
+        this.hasErrored = false;
+
+        this.input.on('error', err => {
+            this.hasErrored = true;
+            this.cleanup();
+            output.emit('error', err);
+        });
+    }
+
+    cleanup() {
+        if (!this.cache || !this.cachePath) {
+            return;
+        }
+        fs.unlink(this.cachePath, () => false);
+    }
+
+    createReadCache() {
+        // pipe remainings to cache file
+        this.cache = fs.createReadStream(this.cachePath);
+        this.cache.once('error', err => {
+            this.cleanup();
+            this.output.emit('error', err);
+        });
+        this.cache.once('close', () => {
+            this.cleanup();
+        });
+        this.cache.pipe(this.output);
+    }
+
+    sendNextChunk() {
+        if (this.hasErrored) {
+            return;
+        }
+
+        if (this.readPos >= this.chunks.length) {
+            if (!this.cache) {
+                return this.output.end();
+            }
+            return this.createReadCache();
+        }
+        let chunk = this.chunks[this.readPos++];
+        if (this.output.write(chunk) === false) {
+            return this.output.once('drain', () => {
+                this.sendNextChunk();
+            });
+        }
+        setImmediate(() => this.sendNextChunk());
+    }
+
+    sendSignedOutput() {
+        let keyPos = 0;
+        let signNextKey = () => {
+            if (keyPos >= this.keys.length) {
+                this.output.write(this.parser.rawHeaders);
+                return setImmediate(() => this.sendNextChunk());
+            }
+            let key = this.keys[keyPos++];
+            let dkimField = sign(this.headers, this.hashAlgo, this.bodyHash, {
+                domainName: key.domainName,
+                keySelector: key.keySelector,
+                privateKey: key.privateKey,
+                headerFieldNames: this.options.headerFieldNames,
+                skipFields: this.options.skipFields
+            });
+            if (dkimField) {
+                this.output.write(Buffer.from(dkimField + '\r\n'));
+            }
+            return setImmediate(signNextKey);
+        };
+
+        if (this.bodyHash && this.headers) {
+            return signNextKey();
+        }
+
+        this.output.write(this.parser.rawHeaders);
+        this.sendNextChunk();
+    }
+
+    createWriteCache() {
+        this.output.usingCache = true;
+        // pipe remainings to cache file
+        this.cache = fs.createWriteStream(this.cachePath);
+        this.cache.once('error', err => {
+            this.cleanup();
+            // drain input
+            this.relaxedBody.unpipe(this.cache);
+            this.relaxedBody.on('readable', () => {
+                while (this.relaxedBody.read() !== null) {
+                    // do nothing
+                }
+            });
+            this.hasErrored = true;
+            // emit error
+            this.output.emit('error', err);
+        });
+        this.cache.once('close', () => {
+            this.sendSignedOutput();
+        });
+        this.relaxedBody.removeAllListeners('readable');
+        this.relaxedBody.pipe(this.cache);
+    }
+
+    signStream() {
+        this.parser = new MessageParser();
+        this.relaxedBody = new RelaxedBody({
+            hashAlgo: this.hashAlgo
+        });
+
+        this.parser.on('headers', value => {
+            this.headers = value;
+        });
+
+        this.relaxedBody.on('hash', value => {
+            this.bodyHash = value;
+        });
+
+        this.relaxedBody.on('readable', () => {
+            let chunk;
+            if (this.cache) {
+                return;
+            }
+            while ((chunk = this.relaxedBody.read()) !== null) {
+                this.chunks.push(chunk);
+                this.chunklen += chunk.length;
+                if (this.chunklen >= this.cacheTreshold && this.cachePath) {
+                    return this.createWriteCache();
+                }
+            }
+        });
+
+        this.relaxedBody.on('end', () => {
+            if (this.cache) {
+                return;
+            }
+            this.sendSignedOutput();
+        });
+
+        this.parser.pipe(this.relaxedBody);
+        setImmediate(() => this.input.pipe(this.parser));
+    }
+}
+
+class DKIM {
+    constructor(options) {
+        this.options = options || {};
+        this.keys = [].concat(
+            this.options.keys || {
+                domainName: options.domainName,
+                keySelector: options.keySelector,
+                privateKey: options.privateKey
+            }
+        );
+    }
+
+    sign(input, extraOptions) {
+        let output = new PassThrough();
+        let inputStream = input;
+        let writeValue = false;
+
+        if (Buffer.isBuffer(input)) {
+            writeValue = input;
+            inputStream = new PassThrough();
+        } else if (typeof input === 'string') {
+            writeValue = Buffer.from(input);
+            inputStream = new PassThrough();
+        }
+
+        let options = this.options;
+        if (extraOptions && Object.keys(extraOptions).length) {
+            options = {};
+            Object.keys(this.options || {}).forEach(key => {
+                options[key] = this.options[key];
+            });
+            Object.keys(extraOptions || {}).forEach(key => {
+                if (!(key in options)) {
+                    options[key] = extraOptions[key];
+                }
+            });
+        }
+
+        let signer = new DKIMSigner(options, this.keys, inputStream, output);
+        setImmediate(() => {
+            signer.signStream();
+            if (writeValue) {
+                setImmediate(() => {
+                    inputStream.end(writeValue);
+                });
+            }
+        });
+
+        return output;
+    }
+}
+
+module.exports = DKIM;
diff --git a/backend/node_modules/nodemailer/lib/dkim/message-parser.js b/backend/node_modules/nodemailer/lib/dkim/message-parser.js
new file mode 100644
index 0000000..8ee93d2
--- /dev/null
+++ b/backend/node_modules/nodemailer/lib/dkim/message-parser.js
@@ -0,0 +1,155 @@
+'use strict';
+
+const Transform = require('stream').Transform;
+
+/**
+ * MessageParser instance is a transform stream that separates message headers
+ * from the rest of the body. Headers are emitted with the 'headers' event. Message
+ * body is passed on as the resulting stream.
+ */
+class MessageParser extends Transform {
+    constructor(options) {
+        super(options);
+        this.lastBytes = Buffer.alloc(4);
+        this.headersParsed = false;
+        this.headerBytes = 0;
+        this.headerChunks = [];
+        this.rawHeaders = false;
+        this.bodySize = 0;
+    }
+
+    /**
+     * Keeps count of the last 4 bytes in order to detect line breaks on chunk boundaries
+     *
+     * @param {Buffer} data Next data chunk from the stream
+     */
+    updateLastBytes(data) {
+        let lblen = this.lastBytes.length;
+        let nblen = Math.min(data.length, lblen);
+
+        // shift existing bytes
+        for (let i = 0, len = lblen - nblen; i < len; i++) {
+            this.lastBytes[i] = this.lastBytes[i + nblen];
+        }
+
+        // add new bytes
+        for (let i = 1; i <= nblen; i++) {
+            this.lastBytes[lblen - i] = data[data.length - i];
+        }
+    }
+
+    /**
+     * Finds and removes message headers from the remaining body. We want to keep
+     * headers separated until final delivery to be able to modify these
+     *
+     * @param {Buffer} data Next chunk of data
+     * @return {Boolean} Returns true if headers are already found or false otherwise
+     */
+    checkHeaders(data) {
+        if (this.headersParsed) {
+            return true;
+        }
+
+        let lblen = this.lastBytes.length;
+        let headerPos = 0;
+        this.curLinePos = 0;
+        for (let i = 0, len = this.lastBytes.length + data.length; i < len; i++) {
+            let chr;
+            if (i < lblen) {
+                chr = this.lastBytes[i];
+            } else {
+                chr = data[i - lblen];
+            }
+            if (chr === 0x0a && i) {
+                let pr1 = i - 1 < lblen ? this.lastBytes[i - 1] : data[i - 1 - lblen];
+                let pr2 = i > 1 ? (i - 2 < lblen ? this.lastBytes[i - 2] : data[i - 2 - lblen]) : false;
+                if (pr1 === 0x0a) {
+                    this.headersParsed = true;
+                    headerPos = i - lblen + 1;
+                    this.headerBytes += headerPos;
+                    break;
+                } else if (pr1 === 0x0d && pr2 === 0x0a) {
+                    this.headersParsed = true;
+                    headerPos = i - lblen + 1;
+                    this.headerBytes += headerPos;
+                    break;
+                }
+            }
+        }
+
+        if (this.headersParsed) {
+            this.headerChunks.push(data.slice(0, headerPos));
+            this.rawHeaders = Buffer.concat(this.headerChunks, this.headerBytes);
+            this.headerChunks = null;
+            this.emit('headers', this.parseHeaders());
+            if (data.length - 1 > headerPos) {
+                let chunk = data.slice(headerPos);
+                this.bodySize += chunk.length;
+                // this would be the first chunk of data sent downstream
+                setImmediate(() => this.push(chunk));
+            }
+            return false;
+        } else {
+            this.headerBytes += data.length;
+            this.headerChunks.push(data);
+        }
+
+        // store last 4 bytes to catch header break
+        this.updateLastBytes(data);
+
+        return false;
+    }
+
+    _transform(chunk, encoding, callback) {
+        if (!chunk || !chunk.length) {
+            return callback();
+        }
+
+        if (typeof chunk === 'string') {
+            chunk = Buffer.from(chunk, encoding);
+        }
+
+        let headersFound;
+
+        try {
+            headersFound = this.checkHeaders(chunk);
+        } catch (E) {
+            return callback(E);
+        }
+
+        if (headersFound) {
+            this.bodySize += chunk.length;
+            this.push(chunk);
+        }
+
+        setImmediate(callback);
+    }
+
+    _flush(callback) {
+        if (this.headerChunks) {
+            let chunk = Buffer.concat(this.headerChunks, this.headerBytes);
+            this.bodySize += chunk.length;
+            this.push(chunk);
+            this.headerChunks = null;
+        }
+        callback();
+    }
+
+    parseHeaders() {
+        let lines = (this.rawHeaders || '').toString().split(/\r?\n/);
+        for (let i = lines.length - 1; i > 0; i--) {
+            if (/^\s/.test(lines[i])) {
+                lines[i - 1] += '\n' + lines[i];
+                lines.splice(i, 1);
+            }
+        }
+        return lines
+            .filter(line => line.trim())
+            .map(line => ({
+                key: line.substr(0, line.indexOf(':')).trim().toLowerCase(),
+                line
+            }));
+    }
+}
+
+module.exports = MessageParser;
diff --git a/backend/node_modules/nodemailer/lib/dkim/relaxed-body.js b/backend/node_modules/nodemailer/lib/dkim/relaxed-body.js
new file mode 100644
index 0000000..03558e8
--- /dev/null
+++ b/backend/node_modules/nodemailer/lib/dkim/relaxed-body.js
@@ -0,0 +1,154 @@
+'use strict';
+
+// streams through a message body and calculates relaxed body hash
+
+const Transform = require('stream').Transform;
+const crypto = require('crypto');
+
+class RelaxedBody extends Transform {
+    constructor(options) {
+        super();
+        options = options || {};
+        this.chunkBuffer = [];
+        this.chunkBufferLen = 0;
+        this.bodyHash = crypto.createHash(options.hashAlgo || 'sha1');
+        this.remainder = '';
+        this.byteLength = 0;
+
+        this.debug = options.debug;
+        this._debugBody = options.debug ? [] : false;
+    }
+
+    updateHash(chunk) {
+        let bodyStr;
+
+        // find next remainder
+        let nextRemainder = '';
+
+        // This crux finds and removes the spaces from the last line and the newline characters after the last non-empty line
+        // If we get another chunk that does not match this description then we can restore the previously processed data
+        let state = 'file';
+        for (let i = chunk.length - 1; i >= 0; i--) {
+            let c = chunk[i];
+
+            if (state === 'file' && (c === 0x0a || c === 0x0d)) {
+                // do nothing, found \n or \r at the end of chunk, stil end of file
+            } else if (state === 'file' && (c === 0x09 || c === 0x20)) {
+                // switch to line ending mode, this is the last non-empty line
+                state = 'line';
+            } else if (state === 'line' && (c === 0x09 || c === 0x20)) {
+                // do nothing, found ' ' or \t at the end of line, keep processing the last non-empty line
+            } else if (state === 'file' || state === 'line') {
+                // non line/file ending character found, switch to body mode
+                state = 'body';
+                if (i === chunk.length - 1) {
+                    // final char is not part of line end or file end, so do nothing
+                    break;
+                }
+            }
+
+            if (i === 0) {
+                // reached to the beginning of the chunk, check if it is still about the ending
+                // and if the remainder also matches
+                if (
+                    (state === 'file' && (!this.remainder || /[\r\n]$/.test(this.remainder))) ||
+                    (state === 'line' && (!this.remainder || /[ \t]$/.test(this.remainder)))
+                ) {
+                    // keep everything
+                    this.remainder += chunk.toString('binary');
+                    return;
+                } else if (state === 'line' || state === 'file') {
+                    // process existing remainder as normal line but store the current chunk
+                    nextRemainder = chunk.toString('binary');
+                    chunk = false;
+                    break;
+                }
+            }
+
+            if (state !== 'body') {
+                continue;
+            }
+
+            // reached first non ending byte
+            nextRemainder = chunk.slice(i + 1).toString('binary');
+            chunk = chunk.slice(0, i + 1);
+            break;
+        }
+
+        let needsFixing = !!this.remainder;
+        if (chunk && !needsFixing) {
+            // check if we even need to change anything
+            for (let i = 0, len = chunk.length; i < len; i++) {
+                if (i && chunk[i] === 0x0a && chunk[i - 1] !== 0x0d) {
+                    // missing \r before \n
+                    needsFixing = true;
+                    break;
+                } else if (i && chunk[i] === 0x0d && chunk[i - 1] === 0x20) {
+                    // trailing WSP found
+                    needsFixing = true;
+                    break;
+                } else if (i && chunk[i] === 0x20 && chunk[i - 1] === 0x20) {
+                    // multiple spaces found, needs to be replaced with just one
+                    needsFixing = true;
+                    break;
+                } else if (chunk[i] === 0x09) {
+                    // TAB found, needs to be replaced with a space
+                    needsFixing = true;
+                    break;
+                }
+            }
+        }
+
+        if (needsFixing) {
+            bodyStr = this.remainder + (chunk ? chunk.toString('binary') : '');
+            this.remainder = nextRemainder;
+            bodyStr = bodyStr
+                .replace(/\r?\n/g, '\n') // use js line endings
+                .replace(/[ \t]*$/gm, '') // remove line endings, rtrim
+                .replace(/[ \t]+/gm, ' ') // single spaces
+                .replace(/\n/g, '\r\n'); // restore rfc822 line endings
+            chunk = Buffer.from(bodyStr, 'binary');
+        } else if (nextRemainder) {
+            this.remainder = nextRemainder;
+        }
+
+        if (this.debug) {
+            this._debugBody.push(chunk);
+        }
+        this.bodyHash.update(chunk);
+    }
+
+    _transform(chunk, encoding, callback) {
+        if (!chunk || !chunk.length) {
+            return callback();
+        }
+
+        if (typeof chunk === 'string') {
+            chunk = Buffer.from(chunk, encoding);
+        }
+
+        this.updateHash(chunk);
+
+        this.byteLength += chunk.length;
+        this.push(chunk);
+        callback();
+    }
+
+    _flush(callback) {
+        // generate final hash and emit it
+        if (/[\r\n]$/.test(this.remainder) && this.byteLength > 2) {
+            // add terminating line end
+            this.bodyHash.update(Buffer.from('\r\n'));
+        }
+        if (!this.byteLength) {
+            // emit empty line buffer to keep the stream flowing
+            this.push(Buffer.from('\r\n'));
+            // this.bodyHash.update(Buffer.from('\r\n'));
+        }
+
+        this.emit('hash', this.bodyHash.digest('base64'), this.debug ? Buffer.concat(this._debugBody) : false);
+        callback();
+    }
+}
+
+module.exports = RelaxedBody;
diff --git a/backend/node_modules/nodemailer/lib/dkim/sign.js b/backend/node_modules/nodemailer/lib/dkim/sign.js
new file mode 100644
index 0000000..70943b6
--- /dev/null
+++ b/backend/node_modules/nodemailer/lib/dkim/sign.js
@@ -0,0 +1,117 @@
+'use strict';
+
+const punycode = require('../punycode');
+const mimeFuncs = require('../mime-funcs');
+const crypto = require('crypto');
+
+/**
+ * Returns DKIM signature header line
+ *
+ * @param {Object} headers Parsed headers object from MessageParser
+ * @param {String} bodyHash Base64 encoded hash of the message
+ * @param {Object} options DKIM options
+ * @param {String} options.domainName Domain name to be signed for
+ * @param {String} options.keySelector DKIM key selector to use
+ * @param {String} options.privateKey DKIM private key to use
+ * @return {String} Complete header line
+ */
+
+module.exports = (headers, hashAlgo, bodyHash, options) => {
+    options = options || {};
+
+    // all listed fields from RFC4871 #5.5
+    let defaultFieldNames =
+        'From:Sender:Reply-To:Subject:Date:Message-ID:To:' +
+        'Cc:MIME-Version:Content-Type:Content-Transfer-Encoding:Content-ID:' +
+        'Content-Description:Resent-Date:Resent-From:Resent-Sender:' +
+        'Resent-To:Resent-Cc:Resent-Message-ID:In-Reply-To:References:' +
+        'List-Id:List-Help:List-Unsubscribe:List-Subscribe:List-Post:' +
+        'List-Owner:List-Archive';
+
+    let fieldNames = options.headerFieldNames || defaultFieldNames;
+
+    let canonicalizedHeaderData = relaxedHeaders(headers, fieldNames, options.skipFields);
+    let dkimHeader = generateDKIMHeader(options.domainName, options.keySelector, canonicalizedHeaderData.fieldNames, hashAlgo, bodyHash);
+
+    let signer, signature;
+
+    canonicalizedHeaderData.headers += 'dkim-signature:' + relaxedHeaderLine(dkimHeader);
+
+    signer = crypto.createSign(('rsa-' + hashAlgo).toUpperCase());
+    signer.update(canonicalizedHeaderData.headers);
+    try {
+        signature = signer.sign(options.privateKey, 'base64');
+    } catch (E) {
+        return false;
+    }
+
+    return dkimHeader + signature.replace(/(^.{73}|.{75}(?!\r?\n|\r))/g, '$&\r\n ').trim();
+};
+
+module.exports.relaxedHeaders = relaxedHeaders;
+
+function generateDKIMHeader(domainName, keySelector, fieldNames, hashAlgo, bodyHash) {
+    let dkim = [
+        'v=1',
+        'a=rsa-' + hashAlgo,
+        'c=relaxed/relaxed',
+        'd=' + punycode.toASCII(domainName),
+        'q=dns/txt',
+        's=' + keySelector,
+        'bh=' + bodyHash,
+        'h=' + fieldNames
+    ].join('; ');
+
+    return mimeFuncs.foldLines('DKIM-Signature: ' + dkim, 76) + ';\r\n b=';
+}
+
+function relaxedHeaders(headers, fieldNames, skipFields) {
+    let includedFields = new Set();
+    let skip = new Set();
+    let headerFields = new Map();
+
+    (skipFields || '')
+        .toLowerCase()
+        .split(':')
+        .forEach(field => {
+            skip.add(field.trim());
+        });
+
+    (fieldNames || '')
+        .toLowerCase()
+        .split(':')
+        .filter(field => !skip.has(field.trim()))
+        .forEach(field => {
+            includedFields.add(field.trim());
+        });
+
+    for (let i = headers.length - 1; i >= 0; i--) {
+        let line = headers[i];
+        // only include the first value from bottom to top
+        if (includedFields.has(line.key) && !headerFields.has(line.key)) {
+            headerFields.set(line.key, relaxedHeaderLine(line.line));
+        }
+    }
+
+    let headersList = [];
+    let fields = [];
+    includedFields.forEach(field => {
+        if (headerFields.has(field)) {
+            fields.push(field);
+            headersList.push(field + ':' + headerFields.get(field));
+        }
+    });
+
+    return {
+        headers: headersList.join('\r\n') + '\r\n',
+        fieldNames: fields.join(':')
+    };
+}
+
+function relaxedHeaderLine(line) {
+    return line
+        .substr(line.indexOf(':') + 1)
+        .replace(/\r?\n/g, '')
+        .replace(/\s+/g, ' ')
+        .trim();
+}
diff --git a/backend/node_modules/nodemailer/lib/fetch/cookies.js b/backend/node_modules/nodemailer/lib/fetch/cookies.js
new file mode 100644
index 0000000..917b840
--- /dev/null
+++ b/backend/node_modules/nodemailer/lib/fetch/cookies.js
@@ -0,0 +1,281 @@
+'use strict';
+
+// module to handle cookies
+
+const urllib = require('url');
+
+const SESSION_TIMEOUT = 1800; // 30 min
+
+/**
+ * Creates a biskviit cookie jar for managing cookie values in memory
+ *
+ * @constructor
+ * @param {Object} [options] Optional options object
+ */
+class Cookies {
+    constructor(options) {
+        this.options = options || {};
+        this.cookies = [];
+    }
+
+    /**
+     * Stores a cookie string to the cookie storage
+     *
+     * @param {String} cookieStr Value from the 'Set-Cookie:' header
+     * @param {String} url Current URL
+     */
+    set(cookieStr, url) {
+        let urlparts = urllib.parse(url || '');
+        let cookie = this.parse(cookieStr);
+        let domain;
+
+        if (cookie.domain) {
+            domain = cookie.domain.replace(/^\./, '');
+
+            // do not allow cross origin cookies
+            if (
+                // can't be valid if the requested domain is shorter than current hostname
+                urlparts.hostname.length < domain.length ||
+                // prefix domains with dot to be sure that partial matches are not used
+                ('.' + urlparts.hostname).substr(-domain.length + 1) !== '.' + domain
+            ) {
+                cookie.domain = urlparts.hostname;
+            }
+        } else {
+            cookie.domain = urlparts.hostname;
+        }
+
+        if (!cookie.path) {
+            cookie.path = this.getPath(urlparts.pathname);
+        }
+
+        // if no expire date, then use sessionTimeout value
+        if (!cookie.expires) {
+            cookie.expires = new Date(Date.now() + (Number(this.options.sessionTimeout || SESSION_TIMEOUT) || SESSION_TIMEOUT) * 1000);
+        }
+
+        return this.add(cookie);
+    }
+
+    /**
+     * Returns cookie string for the 'Cookie:' header.
+     *
+     * @param {String} url URL to check for
+     * @returns {String} Cookie header or empty string if no matches were found
+     */
+    get(url) {
+        return this.list(url)
+            .map(cookie => cookie.name + '=' + cookie.value)
+            .join('; ');
+    }
+
+    /**
+     * Lists all valied cookie objects for the specified URL
+     *
+     * @param {String} url URL to check for
+     * @returns {Array} An array of cookie objects
+     */
+    list(url) {
+        let result = [];
+        let i;
+        let cookie;
+
+        for (i = this.cookies.length - 1; i >= 0; i--) {
+            cookie = this.cookies[i];
+
+            if (this.isExpired(cookie)) {
+                this.cookies.splice(i, i);
+                continue;
+            }
+
+            if (this.match(cookie, url)) {
+                result.unshift(cookie);
+            }
+        }
+
+        return result;
+    }
+
+    /**
+     * Parses cookie string from the 'Set-Cookie:' header
+     *
+     * @param {String} cookieStr String from the 'Set-Cookie:' header
+     * @returns {Object} Cookie object
+     */
+    parse(cookieStr) {
+        let cookie = {};
+
+        (cookieStr || '')
+            .toString()
+            .split(';')
+            .forEach(cookiePart => {
+                let valueParts = cookiePart.split('=');
+                let key = valueParts.shift().trim().toLowerCase();
+                let value = valueParts.join('=').trim();
+                let domain;
+
+                if (!key) {
+                    // skip empty parts
+                    return;
+                }
+
+                switch (key) {
+                    case 'expires':
+                        value = new Date(value);
+                        // ignore date if can not parse it
+                        if (value.toString() !== 'Invalid Date') {
+                            cookie.expires = value;
+                        }
+                        break;
+
+                    case 'path':
+                        cookie.path = value;
+                        break;
+
+                    case 'domain':
+                        domain = value.toLowerCase();
+                        if (domain.length && domain.charAt(0) !== '.') {
+                            domain = '.' + domain; // ensure preceeding dot for user set domains
+                        }
+                        cookie.domain = domain;
+                        break;
+
+                    case 'max-age':
+                        cookie.expires = new Date(Date.now() + (Number(value) || 0) * 1000);
+                        break;
+
+                    case 'secure':
+                        cookie.secure = true;
+                        break;
+
+                    case 'httponly':
+                        cookie.httponly = true;
+                        break;
+
+                    default:
+                        if (!cookie.name) {
+                            cookie.name = key;
+                            cookie.value = value;
+                        }
+                }
+            });
+
+        return cookie;
+    }
+
+    /**
+     * Checks if a cookie object is valid for a specified URL
+     *
+     * @param {Object} cookie Cookie object
+     * @param {String} url URL to check for
+     * @returns {Boolean} true if cookie is valid for specifiec URL
+     */
+    match(cookie, url) {
+        let urlparts = urllib.parse(url || '');
+
+        // check if hostname matches
+        // .foo.com also matches subdomains, foo.com does not
+        if (
+            urlparts.hostname !== cookie.domain &&
+            (cookie.domain.charAt(0) !== '.' || ('.' + urlparts.hostname).substr(-cookie.domain.length) !== cookie.domain)
+        ) {
+            return false;
+        }
+
+        // check if path matches
+        let path = this.getPath(urlparts.pathname);
+        if (path.substr(0, cookie.path.length) !== cookie.path) {
+            return false;
+        }
+
+        // check secure argument
+        if (cookie.secure && urlparts.protocol !== 'https:') {
+            return false;
+        }
+
+        return true;
+    }
+
+    /**
+     * Adds (or updates/removes if needed) a cookie object to the cookie storage
+     *
+     * @param {Object} cookie Cookie value to be stored
+     */
+    add(cookie) {
+        let i;
+        let len;
+
+        // nothing to do here
+        if (!cookie || !cookie.name) {
+            return false;
+        }
+
+        // overwrite if has same params
+        for (i = 0, len = this.cookies.length; i < len; i++) {
+            if (this.compare(this.cookies[i], cookie)) {
+                // check if the cookie needs to be removed instead
+                if (this.isExpired(cookie)) {
+                    this.cookies.splice(i, 1); // remove expired/unset cookie
+                    return false;
+                }
+
+                this.cookies[i] = cookie;
+                return true;
+            }
+        }
+
+        // add as new if not already expired
+        if (!this.isExpired(cookie)) {
+            this.cookies.push(cookie);
+        }
+
+        return true;
+    }
+
+    /**
+     * Checks if two cookie objects are the same
+     *
+     * @param {Object} a Cookie to check against
+     * @param {Object} b Cookie to check against
+     * @returns {Boolean} True, if the cookies are the same
+     */
+    compare(a, b) {
+        return a.name === b.name && a.path === b.path && a.domain === b.domain && a.secure === b.secure && a.httponly === a.httponly;
+    }
+
+    /**
+     * Checks if a cookie is expired
+     *
+     * @param {Object} cookie Cookie object to check against
+     * @returns {Boolean} True, if the cookie is expired
+     */
+    isExpired(cookie) {
+        return (cookie.expires && cookie.expires < new Date()) || !cookie.value;
+    }
+
+    /**
+     * Returns normalized cookie path for an URL path argument
+     *
+     * @param {String} pathname
+     * @returns {String} Normalized path
+     */
+    getPath(pathname) {
+        let path = (pathname || '/').split('/');
+        path.pop(); // remove filename part
+        path = path.join('/').trim();
+
+        // ensure path prefix /
+        if (path.charAt(0) !== '/') {
+            path = '/' + path;
+        }
+
+        // ensure path suffix /
+        if (path.substr(-1) !== '/') {
+            path += '/';
+        }
+
+        return path;
+    }
+}
+
+module.exports = Cookies;
diff --git a/backend/node_modules/nodemailer/lib/fetch/index.js b/backend/node_modules/nodemailer/lib/fetch/index.js
new file mode 100644
index 0000000..2e73dbd
--- /dev/null
+++ b/backend/node_modules/nodemailer/lib/fetch/index.js
@@ -0,0 +1,274 @@
+'use strict';
+
+const http = require('http');
+const https = require('https');
+const urllib = require('url');
+const zlib = require('zlib');
+const PassThrough = require('stream').PassThrough;
+const Cookies = require('./cookies');
+const packageData = require('../../package.json');
+const net = require('net');
+
+const MAX_REDIRECTS = 5;
+
+module.exports = function (url, options) {
+    return nmfetch(url, options);
+};
+
+module.exports.Cookies = Cookies;
+
+function nmfetch(url, options) {
+    options = options || {};
+
+    options.fetchRes = options.fetchRes || new PassThrough();
+    options.cookies = options.cookies || new Cookies();
+    options.redirects = options.redirects || 0;
+    options.maxRedirects = isNaN(options.maxRedirects) ? MAX_REDIRECTS : options.maxRedirects;
+
+    if (options.cookie) {
+        [].concat(options.cookie || []).forEach(cookie => {
+            options.cookies.set(cookie, url);
+        });
+        options.cookie = false;
+    }
+
+    let fetchRes = options.fetchRes;
+    let parsed = urllib.parse(url);
+    let method = (options.method || '').toString().trim().toUpperCase() || 'GET';
+    let finished = false;
+    let cookies;
+    let body;
+
+    let handler = parsed.protocol === 'https:' ? https : http;
+
+    let headers = {
+        'accept-encoding': 'gzip,deflate',
+        'user-agent': 'nodemailer/' + packageData.version
+    };
+
+    Object.keys(options.headers || {}).forEach(key => {
+        headers[key.toLowerCase().trim()] = options.headers[key];
+    });
+
+    if (options.userAgent) {
+        headers['user-agent'] = options.userAgent;
+    }
+
+    if (parsed.auth) {
+        headers.Authorization = 'Basic ' + Buffer.from(parsed.auth).toString('base64');
+    }
+
+    if ((cookies = options.cookies.get(url))) {
+        headers.cookie = cookies;
+    }
+
+    if (options.body) {
+        if (options.contentType !== false) {
+            headers['Content-Type'] = options.contentType || 'application/x-www-form-urlencoded';
+        }
+
+        if (typeof options.body.pipe === 'function') {
+            // it's a stream
+            headers['Transfer-Encoding'] = 'chunked';
+            body = options.body;
+            body.on('error', err => {
+                if (finished) {
+                    return;
+                }
+                finished = true;
+                err.type = 'FETCH';
+                err.sourceUrl = url;
+                fetchRes.emit('error', err);
+            });
+        } else {
+            if (options.body instanceof Buffer) {
+                body = options.body;
+            } else if (typeof options.body === 'object') {
+                try {
+                    // encodeURIComponent can fail on invalid input (partial emoji etc.)
+                    body = Buffer.from(
+                        Object.keys(options.body)
+                            .map(key => {
+                                let value = options.body[key].toString().trim();
+                                return encodeURIComponent(key) + '=' + encodeURIComponent(value);
+                            })
+                            .join('&')
+                    );
+                } catch (E) {
+                    if (finished) {
+                        return;
+                    }
+                    finished = true;
+                    E.type = 'FETCH';
+                    E.sourceUrl = url;
+                    fetchRes.emit('error', E);
+                    return;
+                }
+            } else {
+                body = Buffer.from(options.body.toString().trim());
+            }
+
+            headers['Content-Type'] = options.contentType || 'application/x-www-form-urlencoded';
+            headers['Content-Length'] = body.length;
+        }
+        // if method is not provided, use POST instead of GET
+        method = (options.method || '').toString().trim().toUpperCase() || 'POST';
+    }
+
+    let req;
+    let reqOptions = {
+        method,
+        host: parsed.hostname,
+        path: parsed.path,
+        port: parsed.port ? parsed.port : parsed.protocol === 'https:' ? 443 : 80,
+        headers,
+        rejectUnauthorized: false,
+        agent: false
+    };
+
+    if (options.tls) {
+        Object.keys(options.tls).forEach(key => {
+            reqOptions[key] = options.tls[key];
+        });
+    }
+
+    if (parsed.protocol === 'https:' && parsed.hostname && parsed.hostname !== reqOptions.host && !net.isIP(parsed.hostname) && !reqOptions.servername) {
+        reqOptions.servername = parsed.hostname;
+    }
+
+    try {
+        req = handler.request(reqOptions);
+    } catch (E) {
+        finished = true;
+        setImmediate(() => {
+            E.type = 'FETCH';
+            E.sourceUrl = url;
+            fetchRes.emit('error', E);
+        });
+        return fetchRes;
+    }
+
+    if (options.timeout) {
+        req.setTimeout(options.timeout, () => {
+            if (finished) {
+                return;
+            }
+            finished = true;
+            req.abort();
+            let err = new Error('Request Timeout');
+            err.type = 'FETCH';
+            err.sourceUrl = url;
+            fetchRes.emit('error', err);
+        });
+    }
+
+    req.on('error', err => {
+        if (finished) {
+            return;
+        }
+        finished = true;
+        err.type = 'FETCH';
+        err.sourceUrl = url;
+        fetchRes.emit('error', err);
+    });
+
+    req.on('response', res => {
+        let inflate;
+
+        if (finished) {
+            return;
+        }
+
+        switch (res.headers['content-encoding']) {
+            case 'gzip':
+            case 'deflate':
+                inflate = zlib.createUnzip();
+                break;
+        }
+
+        if (res.headers['set-cookie']) {
+            [].concat(res.headers['set-cookie'] || []).forEach(cookie => {
+                options.cookies.set(cookie, url);
+            });
+        }
+
+        if ([301, 302, 303, 307, 308].includes(res.statusCode) && res.headers.location) {
+            // redirect
+            options.redirects++;
+            if (options.redirects > options.maxRedirects) {
+                finished = true;
+                let err = new Error('Maximum redirect count exceeded');
+                err.type = 'FETCH';
+                err.sourceUrl = url;
+                fetchRes.emit('error', err);
+                req.abort();
+                return;
+            }
+            // redirect does not include POST body
+            options.method = 'GET';
+            options.body = false;
+            return nmfetch(urllib.resolve(url, res.headers.location), options);
+        }
+
+        fetchRes.statusCode = res.statusCode;
+        fetchRes.headers = res.headers;
+
+        if (res.statusCode >= 300 && !options.allowErrorResponse) {
+            finished = true;
+            let err = new Error('Invalid status code ' + res.statusCode);
+            err.type = 'FETCH';
+            err.sourceUrl = url;
+            fetchRes.emit('error', err);
+            req.abort();
+            return;
+        }
+
+        res.on('error', err => {
+            if (finished) {
+                return;
+            }
+            finished = true;
+            err.type = 'FETCH';
+            err.sourceUrl = url;
+            fetchRes.emit('error', err);
+            req.abort();
+        });
+
+        if (inflate) {
+            res.pipe(inflate).pipe(fetchRes);
+            inflate.on('error', err => {
+                if (finished) {
+                    return;
+                }
+                finished = true;
+                err.type = 'FETCH';
+                err.sourceUrl = url;
+                fetchRes.emit('error', err);
+                req.abort();
+            });
+        } else {
+            res.pipe(fetchRes);
+        }
+    });
+
+    setImmediate(() => {
+        if (body) {
+            try {
+                if (typeof body.pipe === 'function') {
+                    return body.pipe(req);
+                } else {
+                    req.write(body);
+                }
+            } catch (err) {
+                finished = true;
+                err.type = 'FETCH';
+                err.sourceUrl = url;
+                fetchRes.emit('error', err);
+                return;
+            }
+        }
+        req.end();
+    });
+
+    return fetchRes;
+}
diff --git a/backend/node_modules/nodemailer/lib/json-transport/index.js b/backend/node_modules/nodemailer/lib/json-transport/index.js
new file mode 100644
index 0000000..769bde6
--- /dev/null
+++ b/backend/node_modules/nodemailer/lib/json-transport/index.js
@@ -0,0 +1,82 @@
+'use strict';
+
+const packageData = require('../../package.json');
+const shared = require('../shared');
+
+/**
+ * Generates a Transport object to generate JSON output
+ *
+ * @constructor
+ * @param {Object} optional config parameter
+ */
+class JSONTransport {
+    constructor(options) {
+        options = options || {};
+
+        this.options = options || {};
+
+        this.name = 'JSONTransport';
+        this.version = packageData.version;
+
+        this.logger = shared.getLogger(this.options, {
+            component: this.options.component || 'json-transport'
+        });
+    }
+
+    /**
+     * <p>Compiles a mailcomposer message and forwards it to handler that sends it.</p>
+     *
+     * @param {Object} emailMessage MailComposer object
+     * @param {Function} callback Callback function to run when the sending is completed
+     */
+    send(mail, done) {
+        // Sendmail strips this header line by itself
+        mail.message.keepBcc = true;
+
+        let envelope = mail.data.envelope || mail.message.getEnvelope();
+        let messageId = mail.message.messageId();
+
+        let recipients = [].concat(envelope.to || []);
+        if (recipients.length > 3) {
+            recipients.push('...and ' + recipients.splice(2).length + ' more');
+        }
+        this.logger.info(
+            {
+                tnx: 'send',
+                messageId
+            },
+            'Composing JSON structure of %s to <%s>',
+            messageId,
+            recipients.join(', ')
+        );
+
+        setImmediate(() => {
+            mail.normalize((err, data) => {
+                if (err) {
+                    this.logger.error(
+                        {
+                            err,
+                            tnx: 'send',
+                            messageId
+                        },
+                        'Failed building JSON structure for %s. %s',
+                        messageId,
+                        err.message
+                    );
+                    return done(err);
+                }
+
+                delete data.envelope;
+                delete data.normalizedHeaders;
+
+                return done(null, {
+                    envelope,
+                    messageId,
+                    message: this.options.skipEncoding ? data : JSON.stringify(data)
+                });
+            });
+        });
+    }
+}
+
+module.exports = JSONTransport;
diff --git a/backend/node_modules/nodemailer/lib/mail-composer/index.js b/backend/node_modules/nodemailer/lib/mail-composer/index.js
new file mode 100644
index 0000000..c0ecc2d
--- /dev/null
+++ b/backend/node_modules/nodemailer/lib/mail-composer/index.js
@@ -0,0 +1,601 @@
+/* eslint no-undefined: 0 */
+
+'use strict';
+
+const MimeNode = require('../mime-node');
+const mimeFuncs = require('../mime-funcs');
+const parseDataURI = require('../shared').parseDataURI;
+
+/**
+ * Creates the object for composing a MimeNode instance out from the mail options
+ *
+ * @constructor
+ * @param {Object} mail Mail options
+ */
+class MailComposer {
+    constructor(mail) {
+        this.mail = mail || {};
+        this.message = false;
+    }
+
+    /**
+     * Builds MimeNode instance
+     */
+    compile() {
+        this._alternatives = this.getAlternatives();
+        this._htmlNode = this._alternatives.filter(alternative => /^text\/html\b/i.test(alternative.contentType)).pop();
+        this._attachments = this.getAttachments(!!this._htmlNode);
+
+        this._useRelated = !!(this._htmlNode && this._attachments.related.length);
+        this._useAlternative = this._alternatives.length > 1;
+        this._useMixed = this._attachments.attached.length > 1 || (this._alternatives.length && this._attachments.attached.length === 1);
+
+        // Compose MIME tree
+        if (this.mail.raw) {
+            this.message = new MimeNode('message/rfc822', { newline: this.mail.newline }).setRaw(this.mail.raw);
+        } else if (this._useMixed) {
+            this.message = this._createMixed();
+        } else if (this._useAlternative) {
+            this.message = this._createAlternative();
+        } else if (this._useRelated) {
+            this.message = this._createRelated();
+        } else {
+            this.message = this._createContentNode(
+                false,
+                []
+                    .concat(this._alternatives || [])
+                    .concat(this._attachments.attached || [])
+                    .shift() || {
+                    contentType: 'text/plain',
+                    content: ''
+                }
+            );
+        }
+
+        // Add custom headers
+        if (this.mail.headers) {
+            this.message.addHeader(this.mail.headers);
+        }
+
+        // Add headers to the root node, always overrides custom headers
+        ['from', 'sender', 'to', 'cc', 'bcc', 'reply-to', 'in-reply-to', 'references', 'subject', 'message-id', 'date'].forEach(header => {
+            let key = header.replace(/-(\w)/g, (o, c) => c.toUpperCase());
+            if (this.mail[key]) {
+                this.message.setHeader(header, this.mail[key]);
+            }
+        });
+
+        // Sets custom envelope
+        if (this.mail.envelope) {
+            this.message.setEnvelope(this.mail.envelope);
+        }
+
+        // ensure Message-Id value
+        this.message.messageId();
+
+        return this.message;
+    }
+
+    /**
+     * List all attachments. Resulting attachment objects can be used as input for MimeNode nodes
+     *
+     * @param {Boolean} findRelated If true separate related attachments from attached ones
+     * @returns {Object} An object of arrays (`related` and `attached`)
+     */
+    getAttachments(findRelated) {
+        let icalEvent, eventObject;
+        let attachments = [].concat(this.mail.attachments || []).map((attachment, i) => {
+            let data;
+
+            if (/^data:/i.test(attachment.path || attachment.href)) {
+                attachment = this._processDataUrl(attachment);
+            }
+
+            let contentType = attachment.contentType || mimeFuncs.detectMimeType(attachment.filename || attachment.path || attachment.href || 'bin');
+
+            let isImage = /^image\//i.test(contentType);
+            let isMessageNode = /^message\//i.test(contentType);
+
+            let contentDisposition = attachment.contentDisposition || (isMessageNode || (isImage && attachment.cid) ? 'inline' : 'attachment');
+
+            let contentTransferEncoding;
+            if ('contentTransferEncoding' in attachment) {
+                // also contains `false`, to set
+                contentTransferEncoding = attachment.contentTransferEncoding;
+            } else if (isMessageNode) {
+                contentTransferEncoding = '7bit';
+            } else {
+                contentTransferEncoding = 'base64'; // the default
+            }
+
+            data = {
+                contentType,
+                contentDisposition,
+                contentTransferEncoding
+            };
+
+            if (attachment.filename) {
+                data.filename = attachment.filename;
+            } else if (!isMessageNode && attachment.filename !== false) {
+                data.filename = (attachment.path || attachment.href || '').split('/').pop().split('?').shift() || 'attachment-' + (i + 1);
+                if (data.filename.indexOf('.') < 0) {
+                    data.filename += '.' + mimeFuncs.detectExtension(data.contentType);
+                }
+            }
+
+            if (/^https?:\/\//i.test(attachment.path)) {
+                attachment.href = attachment.path;
+                attachment.path = undefined;
+            }
+
+            if (attachment.cid) {
+                data.cid = attachment.cid;
+            }
+
+            if (attachment.raw) {
+                data.raw = attachment.raw;
+            } else if (attachment.path) {
+                data.content = {
+                    path: attachment.path
+                };
+            } else if (attachment.href) {
+                data.content = {
+                    href: attachment.href,
+                    httpHeaders: attachment.httpHeaders
+                };
+            } else {
+                data.content = attachment.content || '';
+            }
+
+            if (attachment.encoding) {
+                data.encoding = attachment.encoding;
+            }
+
+            if (attachment.headers) {
+                data.headers = attachment.headers;
+            }
+
+            return data;
+        });
+
+        if (this.mail.icalEvent) {
+            if (
+                typeof this.mail.icalEvent === 'object' &&
+                (this.mail.icalEvent.content || this.mail.icalEvent.path || this.mail.icalEvent.href || this.mail.icalEvent.raw)
+            ) {
+                icalEvent = this.mail.icalEvent;
+            } else {
+                icalEvent = {
+                    content: this.mail.icalEvent
+                };
+            }
+
+            eventObject = {};
+            Object.keys(icalEvent).forEach(key => {
+                eventObject[key] = icalEvent[key];
+            });
+
+            eventObject.contentType = 'application/ics';
+            if (!eventObject.headers) {
+                eventObject.headers = {};
+            }
+            eventObject.filename = eventObject.filename || 'invite.ics';
+            eventObject.headers['Content-Disposition'] = 'attachment';
+            eventObject.headers['Content-Transfer-Encoding'] = 'base64';
+        }
+
+        if (!findRelated) {
+            return {
+                attached: attachments.concat(eventObject || []),
+                related: []
+            };
+        } else {
+            return {
+                attached: attachments.filter(attachment => !attachment.cid).concat(eventObject || []),
+                related: attachments.filter(attachment => !!attachment.cid)
+            };
+        }
+    }
+
+    /**
+     * List alternatives. Resulting objects can be used as input for MimeNode nodes
+     *
+     * @returns {Array} An array of alternative elements. Includes the `text` and `html` values as well
+     */
+    getAlternatives() {
+        let alternatives = [],
+            text,
+            html,
+            watchHtml,
+            amp,
+            icalEvent,
+            eventObject;
+
+        if (this.mail.text) {
+            if (typeof this.mail.text === 'object' && (this.mail.text.content || this.mail.text.path || this.mail.text.href || this.mail.text.raw)) {
+                text = this.mail.text;
+            } else {
+                text = {
+                    content: this.mail.text
+                };
+            }
+            text.contentType = 'text/plain; charset=utf-8';
+        }
+
+        if (this.mail.watchHtml) {
+            if (
+                typeof this.mail.watchHtml === 'object' &&
+                (this.mail.watchHtml.content || this.mail.watchHtml.path || this.mail.watchHtml.href || this.mail.watchHtml.raw)
+            ) {
+                watchHtml = this.mail.watchHtml;
+            } else {
+                watchHtml = {
+                    content: this.mail.watchHtml
+                };
+            }
+            watchHtml.contentType = 'text/watch-html; charset=utf-8';
+        }
+
+        if (this.mail.amp) {
+            if (typeof this.mail.amp === 'object' && (this.mail.amp.content || this.mail.amp.path || this.mail.amp.href || this.mail.amp.raw)) {
+                amp = this.mail.amp;
+            } else {
+                amp = {
+                    content: this.mail.amp
+                };
+            }
+            amp.contentType = 'text/x-amp-html; charset=utf-8';
+        }
+
+        // NB! when including attachments with a calendar alternative you might end up in a blank screen on some clients
+        if (this.mail.icalEvent) {
+            if (
+                typeof this.mail.icalEvent === 'object' &&
+                (this.mail.icalEvent.content || this.mail.icalEvent.path || this.mail.icalEvent.href || this.mail.icalEvent.raw)
+            ) {
+                icalEvent = this.mail.icalEvent;
+            } else {
+                icalEvent = {
+                    content: this.mail.icalEvent
+                };
+            }
+
+            eventObject = {};
+            Object.keys(icalEvent).forEach(key => {
+                eventObject[key] = icalEvent[key];
+            });
+
+            if (eventObject.content && typeof eventObject.content === 'object') {
+                // we are going to have the same attachment twice, so mark this to be
+                // resolved just once
+                eventObject.content._resolve = true;
+            }
+
+            eventObject.filename = false;
+            eventObject.contentType = 'text/calendar; charset=utf-8; method=' + (eventObject.method || 'PUBLISH').toString().trim().toUpperCase();
+            if (!eventObject.headers) {
+                eventObject.headers = {};
+            }
+        }
+
+        if (this.mail.html) {
+            if (typeof this.mail.html === 'object' && (this.mail.html.content || this.mail.html.path || this.mail.html.href || this.mail.html.raw)) {
+                html = this.mail.html;
+            } else {
+                html = {
+                    content: this.mail.html
+                };
+            }
+            html.contentType = 'text/html; charset=utf-8';
+        }
+
+        []
+            .concat(text || [])
+            .concat(watchHtml || [])
+            .concat(amp || [])
+            .concat(html || [])
+            .concat(eventObject || [])
+            .concat(this.mail.alternatives || [])
+            .forEach(alternative => {
+                let data;
+
+                if (/^data:/i.test(alternative.path || alternative.href)) {
+                    alternative = this._processDataUrl(alternative);
+                }
+
+                data = {
+                    contentType: alternative.contentType || mimeFuncs.detectMimeType(alternative.filename || alternative.path || alternative.href || 'txt'),
+                    contentTransferEncoding: alternative.contentTransferEncoding
+                };
+
+                if (alternative.filename) {
+                    data.filename = alternative.filename;
+                }
+
+                if (/^https?:\/\//i.test(alternative.path)) {
+                    alternative.href = alternative.path;
+                    alternative.path = undefined;
+                }
+
+                if (alternative.raw) {
+                    data.raw = alternative.raw;
+                } else if (alternative.path) {
+                    data.content = {
+                        path: alternative.path
+                    };
+                } else if (alternative.href) {
+                    data.content = {
+                        href: alternative.href
+                    };
+                } else {
+                    data.content = alternative.content || '';
+                }
+
+                if (alternative.encoding) {
+                    data.encoding = alternative.encoding;
+                }
+
+                if (alternative.headers) {
+                    data.headers = alternative.headers;
+                }
+
+                alternatives.push(data);
+            });
+
+        return alternatives;
+    }
+
+    /**
+     * Builds multipart/mixed node. It should always contain different type of elements on the same level
+     * eg. text + attachments
+     *
+     * @param {Object} parentNode Parent for this note. If it does not exist, a root node is created
+     * @returns {Object} MimeNode node element
+     */
+    _createMixed(parentNode) {
+        let node;
+
+        if (!parentNode) {
+            node = new MimeNode('multipart/mixed', {
+                baseBoundary: this.mail.baseBoundary,
+                textEncoding: this.mail.textEncoding,
+                boundaryPrefix: this.mail.boundaryPrefix,
+                disableUrlAccess: this.mail.disableUrlAccess,
+                disableFileAccess: this.mail.disableFileAccess,
+                normalizeHeaderKey: this.mail.normalizeHeaderKey,
+                newline: this.mail.newline
+            });
+        } else {
+            node = parentNode.createChild('multipart/mixed', {
+                disableUrlAccess: this.mail.disableUrlAccess,
+                disableFileAccess: this.mail.disableFileAccess,
+                normalizeHeaderKey: this.mail.normalizeHeaderKey,
+                newline: this.mail.newline
+            });
+        }
+
+        if (this._useAlternative) {
+            this._createAlternative(node);
+        } else if (this._useRelated) {
+            this._createRelated(node);
+        }
+
+        []
+            .concat((!this._useAlternative && this._alternatives) || [])
+            .concat(this._attachments.attached || [])
+            .forEach(element => {
+                // if the element is a html node from related subpart then ignore it
+                if (!this._useRelated || element !== this._htmlNode) {
+                    this._createContentNode(node, element);
+                }
+            });
+
+        return node;
+    }
+
+    /**
+     * Builds multipart/alternative node. It should always contain same type of elements on the same level
+     * eg. text + html view of the same data
+     *
+     * @param {Object} parentNode Parent for this note. If it does not exist, a root node is created
+     * @returns {Object} MimeNode node element
+     */
+    _createAlternative(parentNode) {
+        let node;
+
+        if (!parentNode) {
+            node = new MimeNode('multipart/alternative', {
+                baseBoundary: this.mail.baseBoundary,
+                textEncoding: this.mail.textEncoding,
+                boundaryPrefix: this.mail.boundaryPrefix,
+                disableUrlAccess: this.mail.disableUrlAccess,
+                disableFileAccess: this.mail.disableFileAccess,
+                normalizeHeaderKey: this.mail.normalizeHeaderKey,
+                newline: this.mail.newline
+            });
+        } else {
+            node = parentNode.createChild('multipart/alternative', {
+                disableUrlAccess: this.mail.disableUrlAccess,
+                disableFileAccess: this.mail.disableFileAccess,
+                normalizeHeaderKey: this.mail.normalizeHeaderKey,
+                newline: this.mail.newline
+            });
+        }
+
+        this._alternatives.forEach(alternative => {
+            if (this._useRelated && this._htmlNode === alternative) {
+                this._createRelated(node);
+            } else {
+                this._createContentNode(node, alternative);
+            }
+        });
+
+        return node;
+    }
+
+    /**
+     * Builds multipart/related node. It should always contain html node with related attachments
+     *
+     * @param {Object} parentNode Parent for this note. If it does not exist, a root node is created
+     * @returns {Object} MimeNode node element
+     */
+    _createRelated(parentNode) {
+        let node;
+
+        if (!parentNode) {
+            node = new MimeNode('multipart/related; type="text/html"', {
+                baseBoundary: this.mail.baseBoundary,
+                textEncoding: this.mail.textEncoding,
+                boundaryPrefix: this.mail.boundaryPrefix,
+                disableUrlAccess: this.mail.disableUrlAccess,
+                disableFileAccess: this.mail.disableFileAccess,
+                normalizeHeaderKey: this.mail.normalizeHeaderKey,
+                newline: this.mail.newline
+            });
+        } else {
+            node = parentNode.createChild('multipart/related; type="text/html"', {
+                disableUrlAccess: this.mail.disableUrlAccess,
+                disableFileAccess: this.mail.disableFileAccess,
+                normalizeHeaderKey: this.mail.normalizeHeaderKey,
+                newline: this.mail.newline
+            });
+        }
+
+        this._createContentNode(node, this._htmlNode);
+
+        this._attachments.related.forEach(alternative => this._createContentNode(node, alternative));
+
+        return node;
+    }
+
+    /**
+     * Creates a regular node with contents
+     *
+     * @param {Object} parentNode Parent for this note. If it does not exist, a root node is created
+     * @param {Object} element Node data
+     * @returns {Object} MimeNode node element
+     */
+    _createContentNode(parentNode, element) {
+        element = element || {};
+        element.content = element.content || '';
+
+        let node;
+        let encoding = (element.encoding || 'utf8')
+            .toString()
+            .toLowerCase()
+            .replace(/[-_\s]/g, '');
+
+        if (!parentNode) {
+            node = new MimeNode(element.contentType, {
+                filename: element.filename,
+                baseBoundary: this.mail.baseBoundary,
+                textEncoding: this.mail.textEncoding,
+                boundaryPrefix: this.mail.boundaryPrefix,
+                disableUrlAccess: this.mail.disableUrlAccess,
+                disableFileAccess: this.mail.disableFileAccess,
+                normalizeHeaderKey: this.mail.normalizeHeaderKey,
+                newline: this.mail.newline
+            });
+        } else {
+            node = parentNode.createChild(element.contentType, {
+                filename: element.filename,
+                textEncoding: this.mail.textEncoding,
+                disableUrlAccess: this.mail.disableUrlAccess,
+                disableFileAccess: this.mail.disableFileAccess,
+                normalizeHeaderKey: this.mail.normalizeHeaderKey,
+                newline: this.mail.newline
+            });
+        }
+
+        // add custom headers
+        if (element.headers) {
+            node.addHeader(element.headers);
+        }
+
+        if (element.cid) {
+            node.setHeader('Content-Id', '<' + element.cid.replace(/[<>]/g, '') + '>');
+        }
+
+        if (element.contentTransferEncoding) {
+            node.setHeader('Content-Transfer-Encoding', element.contentTransferEncoding);
+        } else if (this.mail.encoding && /^text\//i.test(element.contentType)) {
+            node.setHeader('Content-Transfer-Encoding', this.mail.encoding);
+        }
+
+        if (!/^text\//i.test(element.contentType) || element.contentDisposition) {
+            node.setHeader(
+                'Content-Disposition',
+                element.contentDisposition || (element.cid && /^image\//i.test(element.contentType) ? 'inline' : 'attachment')
+            );
+        }
+
+        if (typeof element.content === 'string' && !['utf8', 'usascii', 'ascii'].includes(encoding)) {
+            element.content = Buffer.from(element.content, encoding);
+        }
+
+        // prefer pregenerated raw content
+        if (element.raw) {
+            node.setRaw(element.raw);
+        } else {
+            node.setContent(element.content);
+        }
+
+        return node;
+    }
+
+    /**
+     * Parses data uri and converts it to a Buffer
+     *
+     * @param {Object} element Content element
+     * @return {Object} Parsed element
+     */
+    _processDataUrl(element) {
+        const dataUrl = element.path || element.href;
+
+        // Early validation to prevent ReDoS
+        if (!dataUrl || typeof dataUrl !== 'string') {
+            return element;
+        }
+
+        if (!dataUrl.startsWith('data:')) {
+            return element;
+        }
+
+        if (dataUrl.length > 100000) {
+            // 100KB limit for data URL string
+            // Return empty content for excessively long data URLs
+            return Object.assign({}, element, {
+                path: false,
+                href: false,
+                content: Buffer.alloc(0),
+                contentType: element.contentType || 'application/octet-stream'
+            });
+        }
+
+        let parsedDataUri;
+        try {
+            parsedDataUri = parseDataURI(dataUrl);
+        } catch (err) {
+            return element;
+        }
+
+        if (!parsedDataUri) {
+            return element;
+        }
+
+        element.content = parsedDataUri.data;
+        element.contentType = element.contentType || parsedDataUri.contentType;
+
+        if ('path' in element) {
+            element.path = false;
+        }
+
+        if ('href' in element) {
+            element.href = false;
+        }
+
+        return element;
+    }
+}
+
+module.exports = MailComposer;
diff --git a/backend/node_modules/nodemailer/lib/mailer/index.js b/backend/node_modules/nodemailer/lib/mailer/index.js
new file mode 100644
index 0000000..8a33c73
--- /dev/null
+++ b/backend/node_modules/nodemailer/lib/mailer/index.js
@@ -0,0 +1,434 @@
+'use strict';
+
+const EventEmitter = require('events');
+const shared = require('../shared');
+const mimeTypes = require('../mime-funcs/mime-types');
+const MailComposer = require('../mail-composer');
+const DKIM = require('../dkim');
+const httpProxyClient = require('../smtp-connection/http-proxy-client');
+const util = require('util');
+const urllib = require('url');
+const packageData = require('../../package.json');
+const MailMessage = require('./mail-message');
+const net = require('net');
+const dns = require('dns');
+const crypto = require('crypto');
+
+/**
+ * Creates an object for exposing the Mail API
+ *
+ * @constructor
+ * @param {Object} transporter Transport object instance to pass the mails to
+ */
+class Mail extends EventEmitter {
+    constructor(transporter, options, defaults) {
+        super();
+
+        this.options = options || {};
+        this._defaults = defaults || {};
+
+        this._defaultPlugins = {
+            compile: [(...args) => this._convertDataImages(...args)],
+            stream: []
+        };
+
+        this._userPlugins = {
+            compile: [],
+            stream: []
+        };
+
+        this.meta = new Map();
+
+        this.dkim = this.options.dkim ? new DKIM(this.options.dkim) : false;
+
+        this.transporter = transporter;
+        this.transporter.mailer = this;
+
+        this.logger = shared.getLogger(this.options, {
+            component: this.options.component || 'mail'
+        });
+
+        this.logger.debug(
+            {
+                tnx: 'create'
+            },
+            'Creating transport: %s',
+            this.getVersionString()
+        );
+
+        // setup emit handlers for the transporter
+        if (typeof this.transporter.on === 'function') {
+            // deprecated log interface
+            this.transporter.on('log', log => {
+                this.logger.debug(
+                    {
+                        tnx: 'transport'
+                    },
+                    '%s: %s',
+                    log.type,
+                    log.message
+                );
+            });
+
+            // transporter errors
+            this.transporter.on('error', err => {
+                this.logger.error(
+                    {
+                        err,
+                        tnx: 'transport'
+                    },
+                    'Transport Error: %s',
+                    err.message
+                );
+                this.emit('error', err);
+            });
+
+            // indicates if the sender has became idle
+            this.transporter.on('idle', (...args) => {
+                this.emit('idle', ...args);
+            });
+
+            // indicates if the sender has became idle and all connections are terminated
+            this.transporter.on('clear', (...args) => {
+                this.emit('clear', ...args);
+            });
+        }
+
+        /**
+         * Optional methods passed to the underlying transport object
+         */
+        ['close', 'isIdle', 'verify'].forEach(method => {
+            this[method] = (...args) => {
+                if (typeof this.transporter[method] === 'function') {
+                    if (method === 'verify' && typeof this.getSocket === 'function') {
+                        this.transporter.getSocket = this.getSocket;
+                        this.getSocket = false;
+                    }
+                    return this.transporter[method](...args);
+                } else {
+                    this.logger.warn(
+                        {
+                            tnx: 'transport',
+                            methodName: method
+                        },
+                        'Non existing method %s called for transport',
+                        method
+                    );
+                    return false;
+                }
+            };
+        });
+
+        // setup proxy handling
+        if (this.options.proxy && typeof this.options.proxy === 'string') {
+            this.setupProxy(this.options.proxy);
+        }
+    }
+
+    use(step, plugin) {
+        step = (step || '').toString();
+        if (!this._userPlugins.hasOwnProperty(step)) {
+            this._userPlugins[step] = [plugin];
+        } else {
+            this._userPlugins[step].push(plugin);
+        }
+
+        return this;
+    }
+
+    /**
+     * Sends an email using the preselected transport object
+     *
+     * @param {Object} data E-data description
+     * @param {Function?} callback Callback to run once the sending succeeded or failed
+     */
+    sendMail(data, callback = null) {
+        let promise;
+
+        if (!callback) {
+            promise = new Promise((resolve, reject) => {
+                callback = shared.callbackPromise(resolve, reject);
+            });
+        }
+
+        if (typeof this.getSocket === 'function') {
+            this.transporter.getSocket = this.getSocket;
+            this.getSocket = false;
+        }
+
+        let mail = new MailMessage(this, data);
+
+        this.logger.debug(
+            {
+                tnx: 'transport',
+                name: this.transporter.name,
+                version: this.transporter.version,
+                action: 'send'
+            },
+            'Sending mail using %s/%s',
+            this.transporter.name,
+            this.transporter.version
+        );
+
+        this._processPlugins('compile', mail, err => {
+            if (err) {
+                this.logger.error(
+                    {
+                        err,
+                        tnx: 'plugin',
+                        action: 'compile'
+                    },
+                    'PluginCompile Error: %s',
+                    err.message
+                );
+                return callback(err);
+            }
+
+            mail.message = new MailComposer(mail.data).compile();
+
+            mail.setMailerHeader();
+            mail.setPriorityHeaders();
+            mail.setListHeaders();
+
+            this._processPlugins('stream', mail, err => {
+                if (err) {
+                    this.logger.error(
+                        {
+                            err,
+                            tnx: 'plugin',
+                            action: 'stream'
+                        },
+                        'PluginStream Error: %s',
+                        err.message
+                    );
+                    return callback(err);
+                }
+
+                if (mail.data.dkim || this.dkim) {
+                    mail.message.processFunc(input => {
+                        let dkim = mail.data.dkim ? new DKIM(mail.data.dkim) : this.dkim;
+                        this.logger.debug(
+                            {
+                                tnx: 'DKIM',
+                                messageId: mail.message.messageId(),
+                                dkimDomains: dkim.keys.map(key => key.keySelector + '.' + key.domainName).join(', ')
+                            },
+                            'Signing outgoing message with %s keys',
+                            dkim.keys.length
+                        );
+                        return dkim.sign(input, mail.data._dkim);
+                    });
+                }
+
+                this.transporter.send(mail, (...args) => {
+                    if (args[0]) {
+                        this.logger.error(
+                            {
+                                err: args[0],
+                                tnx: 'transport',
+                                action: 'send'
+                            },
+                            'Send Error: %s',
+                            args[0].message
+                        );
+                    }
+                    callback(...args);
+                });
+            });
+        });
+
+        return promise;
+    }
+
+    getVersionString() {
+        return util.format('%s (%s; +%s; %s/%s)', packageData.name, packageData.version, packageData.homepage, this.transporter.name, this.transporter.version);
+    }
+
+    _processPlugins(step, mail, callback) {
+        step = (step || '').toString();
+
+        if (!this._userPlugins.hasOwnProperty(step)) {
+            return callback();
+        }
+
+        let userPlugins = this._userPlugins[step] || [];
+        let defaultPlugins = this._defaultPlugins[step] || [];
+
+        if (userPlugins.length) {
+            this.logger.debug(
+                {
+                    tnx: 'transaction',
+                    pluginCount: userPlugins.length,
+                    step
+                },
+                'Using %s plugins for %s',
+                userPlugins.length,
+                step
+            );
+        }
+
+        if (userPlugins.length + defaultPlugins.length === 0) {
+            return callback();
+        }
+
+        let pos = 0;
+        let block = 'default';
+        let processPlugins = () => {
+            let curplugins = block === 'default' ? defaultPlugins : userPlugins;
+            if (pos >= curplugins.length) {
+                if (block === 'default' && userPlugins.length) {
+                    block = 'user';
+                    pos = 0;
+                    curplugins = userPlugins;
+                } else {
+                    return callback();
+                }
+            }
+            let plugin = curplugins[pos++];
+            plugin(mail, err => {
+                if (err) {
+                    return callback(err);
+                }
+                processPlugins();
+            });
+        };
+
+        processPlugins();
+    }
+
+    /**
+     * Sets up proxy handler for a Nodemailer object
+     *
+     * @param {String} proxyUrl Proxy configuration url
+     */
+    setupProxy(proxyUrl) {
+        let proxy = urllib.parse(proxyUrl);
+
+        // setup socket handler for the mailer object
+        this.getSocket = (options, callback) => {
+            let protocol = proxy.protocol.replace(/:$/, '').toLowerCase();
+
+            if (this.meta.has('proxy_handler_' + protocol)) {
+                return this.meta.get('proxy_handler_' + protocol)(proxy, options, callback);
+            }
+
+            switch (protocol) {
+                // Connect using a HTTP CONNECT method
+                case 'http':
+                case 'https':
+                    httpProxyClient(proxy.href, options.port, options.host, (err, socket) => {
+                        if (err) {
+                            return callback(err);
+                        }
+                        return callback(null, {
+                            connection: socket
+                        });
+                    });
+                    return;
+                case 'socks':
+                case 'socks5':
+                case 'socks4':
+                case 'socks4a': {
+                    if (!this.meta.has('proxy_socks_module')) {
+                        return callback(new Error('Socks module not loaded'));
+                    }
+                    let connect = ipaddress => {
+                        let proxyV2 = !!this.meta.get('proxy_socks_module').SocksClient;
+                        let socksClient = proxyV2 ? this.meta.get('proxy_socks_module').SocksClient : this.meta.get('proxy_socks_module');
+                        let proxyType = Number(proxy.protocol.replace(/\D/g, '')) || 5;
+                        let connectionOpts = {
+                            proxy: {
+                                ipaddress,
+                                port: Number(proxy.port),
+                                type: proxyType
+                            },
+                            [proxyV2 ? 'destination' : 'target']: {
+                                host: options.host,
+                                port: options.port
+                            },
+                            command: 'connect'
+                        };
+
+                        if (proxy.auth) {
+                            let username = decodeURIComponent(proxy.auth.split(':').shift());
+                            let password = decodeURIComponent(proxy.auth.split(':').pop());
+                            if (proxyV2) {
+                                connectionOpts.proxy.userId = username;
+                                connectionOpts.proxy.password = password;
+                            } else if (proxyType === 4) {
+                                connectionOpts.userid = username;
+                            } else {
+                                connectionOpts.authentication = {
+                                    username,
+                                    password
+                                };
+                            }
+                        }
+
+                        socksClient.createConnection(connectionOpts, (err, info) => {
+                            if (err) {
+                                return callback(err);
+                            }
+                            return callback(null, {
+                                connection: info.socket || info
+                            });
+                        });
+                    };
+
+                    if (net.isIP(proxy.hostname)) {
+                        return connect(proxy.hostname);
+                    }
+
+                    return dns.resolve(proxy.hostname, (err, address) => {
+                        if (err) {
+                            return callback(err);
+                        }
+                        connect(Array.isArray(address) ? address[0] : address);
+                    });
+                }
+            }
+            callback(new Error('Unknown proxy configuration'));
+        };
+    }
+
+    _convertDataImages(mail, callback) {
+        if ((!this.options.attachDataUrls && !mail.data.attachDataUrls) || !mail.data.html) {
+            return callback();
+        }
+        mail.resolveContent(mail.data, 'html', (err, html) => {
+            if (err) {
+                return callback(err);
+            }
+            let cidCounter = 0;
+            html = (html || '')
+                .toString()
+                .replace(/(<img\b[^<>]{0,1024} src\s{0,20}=[\s"']{0,20})(data:([^;]+);[^"'>\s]+)/gi, (match, prefix, dataUri, mimeType) => {
+                    let cid = crypto.randomBytes(10).toString('hex') + '@localhost';
+                    if (!mail.data.attachments) {
+                        mail.data.attachments = [];
+                    }
+                    if (!Array.isArray(mail.data.attachments)) {
+                        mail.data.attachments = [].concat(mail.data.attachments || []);
+                    }
+                    mail.data.attachments.push({
+                        path: dataUri,
+                        cid,
+                        filename: 'image-' + ++cidCounter + '.' + mimeTypes.detectExtension(mimeType)
+                    });
+                    return prefix + 'cid:' + cid;
+                });
+            mail.data.html = html;
+            callback();
+        });
+    }
+
+    set(key, value) {
+        return this.meta.set(key, value);
+    }
+
+    get(key) {
+        return this.meta.get(key);
+    }
+}
+
+module.exports = Mail;
diff --git a/backend/node_modules/nodemailer/lib/mailer/mail-message.js b/backend/node_modules/nodemailer/lib/mailer/mail-message.js
new file mode 100644
index 0000000..24d492b
--- /dev/null
+++ b/backend/node_modules/nodemailer/lib/mailer/mail-message.js
@@ -0,0 +1,315 @@
+'use strict';
+
+const shared = require('../shared');
+const MimeNode = require('../mime-node');
+const mimeFuncs = require('../mime-funcs');
+
+class MailMessage {
+    constructor(mailer, data) {
+        this.mailer = mailer;
+        this.data = {};
+        this.message = null;
+
+        data = data || {};
+        let options = mailer.options || {};
+        let defaults = mailer._defaults || {};
+
+        Object.keys(data).forEach(key => {
+            this.data[key] = data[key];
+        });
+
+        this.data.headers = this.data.headers || {};
+
+        // apply defaults
+        Object.keys(defaults).forEach(key => {
+            if (!(key in this.data)) {
+                this.data[key] = defaults[key];
+            } else if (key === 'headers') {
+                // headers is a special case. Allow setting individual default headers
+                Object.keys(defaults.headers).forEach(key => {
+                    if (!(key in this.data.headers)) {
+                        this.data.headers[key] = defaults.headers[key];
+                    }
+                });
+            }
+        });
+
+        // force specific keys from transporter options
+        ['disableFileAccess', 'disableUrlAccess', 'normalizeHeaderKey'].forEach(key => {
+            if (key in options) {
+                this.data[key] = options[key];
+            }
+        });
+    }
+
+    resolveContent(...args) {
+        return shared.resolveContent(...args);
+    }
+
+    resolveAll(callback) {
+        let keys = [
+            [this.data, 'html'],
+            [this.data, 'text'],
+            [this.data, 'watchHtml'],
+            [this.data, 'amp'],
+            [this.data, 'icalEvent']
+        ];
+
+        if (this.data.alternatives && this.data.alternatives.length) {
+            this.data.alternatives.forEach((alternative, i) => {
+                keys.push([this.data.alternatives, i]);
+            });
+        }
+
+        if (this.data.attachments && this.data.attachments.length) {
+            this.data.attachments.forEach((attachment, i) => {
+                if (!attachment.filename) {
+                    attachment.filename = (attachment.path || attachment.href || '').split('/').pop().split('?').shift() || 'attachment-' + (i + 1);
+                    if (attachment.filename.indexOf('.') < 0) {
+                        attachment.filename += '.' + mimeFuncs.detectExtension(attachment.contentType);
+                    }
+                }
+
+                if (!attachment.contentType) {
+                    attachment.contentType = mimeFuncs.detectMimeType(attachment.filename || attachment.path || attachment.href || 'bin');
+                }
+
+                keys.push([this.data.attachments, i]);
+            });
+        }
+
+        let mimeNode = new MimeNode();
+
+        let addressKeys = ['from', 'to', 'cc', 'bcc', 'sender', 'replyTo'];
+
+        addressKeys.forEach(address => {
+            let value;
+            if (this.message) {
+                value = [].concat(mimeNode._parseAddresses(this.message.getHeader(address === 'replyTo' ? 'reply-to' : address)) || []);
+            } else if (this.data[address]) {
+                value = [].concat(mimeNode._parseAddresses(this.data[address]) || []);
+            }
+            if (value && value.length) {
+                this.data[address] = value;
+            } else if (address in this.data) {
+                this.data[address] = null;
+            }
+        });
+
+        let singleKeys = ['from', 'sender'];
+        singleKeys.forEach(address => {
+            if (this.data[address]) {
+                this.data[address] = this.data[address].shift();
+            }
+        });
+
+        let pos = 0;
+        let resolveNext = () => {
+            if (pos >= keys.length) {
+                return callback(null, this.data);
+            }
+            let args = keys[pos++];
+            if (!args[0] || !args[0][args[1]]) {
+                return resolveNext();
+            }
+            shared.resolveContent(...args, (err, value) => {
+                if (err) {
+                    return callback(err);
+                }
+
+                let node = {
+                    content: value
+                };
+                if (args[0][args[1]] && typeof args[0][args[1]] === 'object' && !Buffer.isBuffer(args[0][args[1]])) {
+                    Object.keys(args[0][args[1]]).forEach(key => {
+                        if (!(key in node) && !['content', 'path', 'href', 'raw'].includes(key)) {
+                            node[key] = args[0][args[1]][key];
+                        }
+                    });
+                }
+
+                args[0][args[1]] = node;
+                resolveNext();
+            });
+        };
+
+        setImmediate(() => resolveNext());
+    }
+
+    normalize(callback) {
+        let envelope = this.data.envelope || this.message.getEnvelope();
+        let messageId = this.message.messageId();
+
+        this.resolveAll((err, data) => {
+            if (err) {
+                return callback(err);
+            }
+
+            data.envelope = envelope;
+            data.messageId = messageId;
+
+            ['html', 'text', 'watchHtml', 'amp'].forEach(key => {
+                if (data[key] && data[key].content) {
+                    if (typeof data[key].content === 'string') {
+                        data[key] = data[key].content;
+                    } else if (Buffer.isBuffer(data[key].content)) {
+                        data[key] = data[key].content.toString();
+                    }
+                }
+            });
+
+            if (data.icalEvent && Buffer.isBuffer(data.icalEvent.content)) {
+                data.icalEvent.content = data.icalEvent.content.toString('base64');
+                data.icalEvent.encoding = 'base64';
+            }
+
+            if (data.alternatives && data.alternatives.length) {
+                data.alternatives.forEach(alternative => {
+                    if (alternative && alternative.content && Buffer.isBuffer(alternative.content)) {
+                        alternative.content = alternative.content.toString('base64');
+                        alternative.encoding = 'base64';
+                    }
+                });
+            }
+
+            if (data.attachments && data.attachments.length) {
+                data.attachments.forEach(attachment => {
+                    if (attachment && attachment.content && Buffer.isBuffer(attachment.content)) {
+                        attachment.content = attachment.content.toString('base64');
+                        attachment.encoding = 'base64';
+                    }
+                });
+            }
+
+            data.normalizedHeaders = {};
+            Object.keys(data.headers || {}).forEach(key => {
+                let value = [].concat(data.headers[key] || []).shift();
+                value = (value && value.value) || value;
+                if (value) {
+                    if (['references', 'in-reply-to', 'message-id', 'content-id'].includes(key)) {
+                        value = this.message._encodeHeaderValue(key, value);
+                    }
+                    data.normalizedHeaders[key] = value;
+                }
+            });
+
+            if (data.list && typeof data.list === 'object') {
+                let listHeaders = this._getListHeaders(data.list);
+                listHeaders.forEach(entry => {
+                    data.normalizedHeaders[entry.key] = entry.value.map(val => (val && val.value) || val).join(', ');
+                });
+            }
+
+            if (data.references) {
+                data.normalizedHeaders.references = this.message._encodeHeaderValue('references', data.references);
+            }
+
+            if (data.inReplyTo) {
+                data.normalizedHeaders['in-reply-to'] = this.message._encodeHeaderValue('in-reply-to', data.inReplyTo);
+            }
+
+            return callback(null, data);
+        });
+    }
+
+    setMailerHeader() {
+        if (!this.message || !this.data.xMailer) {
+            return;
+        }
+        this.message.setHeader('X-Mailer', this.data.xMailer);
+    }
+
+    setPriorityHeaders() {
+        if (!this.message || !this.data.priority) {
+            return;
+        }
+        switch ((this.data.priority || '').toString().toLowerCase()) {
+            case 'high':
+                this.message.setHeader('X-Priority', '1 (Highest)');
+                this.message.setHeader('X-MSMail-Priority', 'High');
+                this.message.setHeader('Importance', 'High');
+                break;
+            case 'low':
+                this.message.setHeader('X-Priority', '5 (Lowest)');
+                this.message.setHeader('X-MSMail-Priority', 'Low');
+                this.message.setHeader('Importance', 'Low');
+                break;
+            default:
+            // do not add anything, since all messages are 'Normal' by default
+        }
+    }
+
+    setListHeaders() {
+        if (!this.message || !this.data.list || typeof this.data.list !== 'object') {
+            return;
+        }
+        // add optional List-* headers
+        if (this.data.list && typeof this.data.list === 'object') {
+            this._getListHeaders(this.data.list).forEach(listHeader => {
+                listHeader.value.forEach(value => {
+                    this.message.addHeader(listHeader.key, value);
+                });
+            });
+        }
+    }
+
+    _getListHeaders(listData) {
+        // make sure an url looks like <protocol:url>
+        return Object.keys(listData).map(key => ({
+            key: 'list-' + key.toLowerCase().trim(),
+            value: [].concat(listData[key] || []).map(value => ({
+                prepared: true,
+                foldLines: true,
+                value: []
+                    .concat(value || [])
+                    .map(value => {
+                        if (typeof value === 'string') {
+                            value = {
+                                url: value
+                            };
+                        }
+
+                        if (value && value.url) {
+                            if (key.toLowerCase().trim() === 'id') {
+                                // List-ID: "comment" <domain>
+                                let comment = value.comment || '';
+                                if (mimeFuncs.isPlainText(comment)) {
+                                    comment = '"' + comment + '"';
+                                } else {
+                                    comment = mimeFuncs.encodeWord(comment);
+                                }
+
+                                return (value.comment ? comment + ' ' : '') + this._formatListUrl(value.url).replace(/^<[^:]+\/{,2}/, '');
+                            }
+
+                            // List-*: <http://domain> (comment)
+                            let comment = value.comment || '';
+                            if (!mimeFuncs.isPlainText(comment)) {
+                                comment = mimeFuncs.encodeWord(comment);
+                            }
+
+                            return this._formatListUrl(value.url) + (value.comment ? ' (' + comment + ')' : '');
+                        }
+
+                        return '';
+                    })
+                    .filter(value => value)
+                    .join(', ')
+            }))
+        }));
+    }
+
+    _formatListUrl(url) {
+        url = url.replace(/[\s<]+|[\s>]+/g, '');
+        if (/^(https?|mailto|ftp):/.test(url)) {
+            return '<' + url + '>';
+        }
+        if (/^[^@]+@[^@]+$/.test(url)) {
+            return '<mailto:' + url + '>';
+        }
+
+        return '<http://' + url + '>';
+    }
+}
+
+module.exports = MailMessage;
diff --git a/backend/node_modules/nodemailer/lib/mime-funcs/index.js b/backend/node_modules/nodemailer/lib/mime-funcs/index.js
new file mode 100644
index 0000000..b37571a
--- /dev/null
+++ b/backend/node_modules/nodemailer/lib/mime-funcs/index.js
@@ -0,0 +1,625 @@
+/* eslint no-control-regex:0 */
+
+'use strict';
+
+const base64 = require('../base64');
+const qp = require('../qp');
+const mimeTypes = require('./mime-types');
+
+module.exports = {
+    /**
+     * Checks if a value is plaintext string (uses only printable 7bit chars)
+     *
+     * @param {String} value String to be tested
+     * @returns {Boolean} true if it is a plaintext string
+     */
+    isPlainText(value, isParam) {
+        const re = isParam ? /[\x00-\x08\x0b\x0c\x0e-\x1f"\u0080-\uFFFF]/ : /[\x00-\x08\x0b\x0c\x0e-\x1f\u0080-\uFFFF]/;
+        if (typeof value !== 'string' || re.test(value)) {
+            return false;
+        } else {
+            return true;
+        }
+    },
+
+    /**
+     * Checks if a multi line string containes lines longer than the selected value.
+     *
+     * Useful when detecting if a mail message needs any processing at all –
+     * if only plaintext characters are used and lines are short, then there is
+     * no need to encode the values in any way. If the value is plaintext but has
+     * longer lines then allowed, then use format=flowed
+     *
+     * @param {Number} lineLength Max line length to check for
+     * @returns {Boolean} Returns true if there is at least one line longer than lineLength chars
+     */
+    hasLongerLines(str, lineLength) {
+        if (str.length > 128 * 1024) {
+            // do not test strings longer than 128kB
+            return true;
+        }
+        return new RegExp('^.{' + (lineLength + 1) + ',}', 'm').test(str);
+    },
+
+    /**
+     * Encodes a string or an Buffer to an UTF-8 MIME Word (rfc2047)
+     *
+     * @param {String|Buffer} data String to be encoded
+     * @param {String} mimeWordEncoding='Q' Encoding for the mime word, either Q or B
+     * @param {Number} [maxLength=0] If set, split mime words into several chunks if needed
+     * @return {String} Single or several mime words joined together
+     */
+    encodeWord(data, mimeWordEncoding, maxLength) {
+        mimeWordEncoding = (mimeWordEncoding || 'Q').toString().toUpperCase().trim().charAt(0);
+        maxLength = maxLength || 0;
+
+        let encodedStr;
+        let toCharset = 'UTF-8';
+
+        if (maxLength && maxLength > 7 + toCharset.length) {
+            maxLength -= 7 + toCharset.length;
+        }
+
+        if (mimeWordEncoding === 'Q') {
+            // https://tools.ietf.org/html/rfc2047#section-5 rule (3)
+            encodedStr = qp.encode(data).replace(/[^a-z0-9!*+\-/=]/gi, chr => {
+                let ord = chr.charCodeAt(0).toString(16).toUpperCase();
+                if (chr === ' ') {
+                    return '_';
+                } else {
+                    return '=' + (ord.length === 1 ? '0' + ord : ord);
+                }
+            });
+        } else if (mimeWordEncoding === 'B') {
+            encodedStr = typeof data === 'string' ? data : base64.encode(data);
+            maxLength = maxLength ? Math.max(3, ((maxLength - (maxLength % 4)) / 4) * 3) : 0;
+        }
+
+        if (maxLength && (mimeWordEncoding !== 'B' ? encodedStr : base64.encode(data)).length > maxLength) {
+            if (mimeWordEncoding === 'Q') {
+                encodedStr = this.splitMimeEncodedString(encodedStr, maxLength).join('?= =?' + toCharset + '?' + mimeWordEncoding + '?');
+            } else {
+                // RFC2047 6.3 (2) states that encoded-word must include an integral number of characters, so no chopping unicode sequences
+                let parts = [];
+                let lpart = '';
+                for (let i = 0, len = encodedStr.length; i < len; i++) {
+                    let chr = encodedStr.charAt(i);
+
+                    if (/[\ud83c\ud83d\ud83e]/.test(chr) && i < len - 1) {
+                        // composite emoji byte, so add the next byte as well
+                        chr += encodedStr.charAt(++i);
+                    }
+
+                    // check if we can add this character to the existing string
+                    // without breaking byte length limit
+                    if (Buffer.byteLength(lpart + chr) <= maxLength || i === 0) {
+                        lpart += chr;
+                    } else {
+                        // we hit the length limit, so push the existing string and start over
+                        parts.push(base64.encode(lpart));
+                        lpart = chr;
+                    }
+                }
+                if (lpart) {
+                    parts.push(base64.encode(lpart));
+                }
+
+                if (parts.length > 1) {
+                    encodedStr = parts.join('?= =?' + toCharset + '?' + mimeWordEncoding + '?');
+                } else {
+                    encodedStr = parts.join('');
+                }
+            }
+        } else if (mimeWordEncoding === 'B') {
+            encodedStr = base64.encode(data);
+        }
+
+        return '=?' + toCharset + '?' + mimeWordEncoding + '?' + encodedStr + (encodedStr.substr(-2) === '?=' ? '' : '?=');
+    },
+
+    /**
+     * Finds word sequences with non ascii text and converts these to mime words
+     *
+     * @param {String} value String to be encoded
+     * @param {String} mimeWordEncoding='Q' Encoding for the mime word, either Q or B
+     * @param {Number} [maxLength=0] If set, split mime words into several chunks if needed
+     * @param {Boolean} [encodeAll=false] If true and the value needs encoding then encodes entire string, not just the smallest match
+     * @return {String} String with possible mime words
+     */
+    encodeWords(value, mimeWordEncoding, maxLength, encodeAll) {
+        maxLength = maxLength || 0;
+
+        let encodedValue;
+
+        // find first word with a non-printable ascii or special symbol in it
+        let firstMatch = value.match(/(?:^|\s)([^\s]*["\u0080-\uFFFF])/);
+        if (!firstMatch) {
+            return value;
+        }
+
+        if (encodeAll) {
+            // if it is requested to encode everything or the string contains something that resebles encoded word, then encode everything
+
+            return this.encodeWord(value, mimeWordEncoding, maxLength);
+        }
+
+        // find the last word with a non-printable ascii in it
+        let lastMatch = value.match(/(["\u0080-\uFFFF][^\s]*)[^"\u0080-\uFFFF]*$/);
+        if (!lastMatch) {
+            // should not happen
+            return value;
+        }
+
+        let startIndex =
+            firstMatch.index +
+            (
+                firstMatch[0].match(/[^\s]/) || {
+                    index: 0
+                }
+            ).index;
+        let endIndex = lastMatch.index + (lastMatch[1] || '').length;
+
+        encodedValue =
+            (startIndex ? value.substr(0, startIndex) : '') +
+            this.encodeWord(value.substring(startIndex, endIndex), mimeWordEncoding || 'Q', maxLength) +
+            (endIndex < value.length ? value.substr(endIndex) : '');
+
+        return encodedValue;
+    },
+
+    /**
+     * Joins parsed header value together as 'value; param1=value1; param2=value2'
+     * PS: We are following RFC 822 for the list of special characters that we need to keep in quotes.
+     *      Refer: https://www.w3.org/Protocols/rfc1341/4_Content-Type.html
+     * @param {Object} structured Parsed header value
+     * @return {String} joined header value
+     */
+    buildHeaderValue(structured) {
+        let paramsArray = [];
+
+        Object.keys(structured.params || {}).forEach(param => {
+            // filename might include unicode characters so it is a special case
+            // other values probably do not
+            let value = structured.params[param];
+            if (!this.isPlainText(value, true) || value.length >= 75) {
+                this.buildHeaderParam(param, value, 50).forEach(encodedParam => {
+                    if (!/[\s"\\;:/=(),<>@[\]?]|^[-']|'$/.test(encodedParam.value) || encodedParam.key.substr(-1) === '*') {
+                        paramsArray.push(encodedParam.key + '=' + encodedParam.value);
+                    } else {
+                        paramsArray.push(encodedParam.key + '=' + JSON.stringify(encodedParam.value));
+                    }
+                });
+            } else if (/[\s'"\\;:/=(),<>@[\]?]|^-/.test(value)) {
+                paramsArray.push(param + '=' + JSON.stringify(value));
+            } else {
+                paramsArray.push(param + '=' + value);
+            }
+        });
+
+        return structured.value + (paramsArray.length ? '; ' + paramsArray.join('; ') : '');
+    },
+
+    /**
+     * Encodes a string or an Buffer to an UTF-8 Parameter Value Continuation encoding (rfc2231)
+     * Useful for splitting long parameter values.
+     *
+     * For example
+     *      title="unicode string"
+     * becomes
+     *     title*0*=utf-8''unicode
+     *     title*1*=%20string
+     *
+     * @param {String|Buffer} data String to be encoded
+     * @param {Number} [maxLength=50] Max length for generated chunks
+     * @param {String} [fromCharset='UTF-8'] Source sharacter set
+     * @return {Array} A list of encoded keys and headers
+     */
+    buildHeaderParam(key, data, maxLength) {
+        let list = [];
+        let encodedStr = typeof data === 'string' ? data : (data || '').toString();
+        let encodedStrArr;
+        let chr, ord;
+        let line;
+        let startPos = 0;
+        let i, len;
+
+        maxLength = maxLength || 50;
+
+        // process ascii only text
+        if (this.isPlainText(data, true)) {
+            // check if conversion is even needed
+            if (encodedStr.length <= maxLength) {
+                return [
+                    {
+                        key,
+                        value: encodedStr
+                    }
+                ];
+            }
+
+            encodedStr = encodedStr.replace(new RegExp('.{' + maxLength + '}', 'g'), str => {
+                list.push({
+                    line: str
+                });
+                return '';
+            });
+
+            if (encodedStr) {
+                list.push({
+                    line: encodedStr
+                });
+            }
+        } else {
+            if (/[\uD800-\uDBFF]/.test(encodedStr)) {
+                // string containts surrogate pairs, so normalize it to an array of bytes
+                encodedStrArr = [];
+                for (i = 0, len = encodedStr.length; i < len; i++) {
+                    chr = encodedStr.charAt(i);
+                    ord = chr.charCodeAt(0);
+                    if (ord >= 0xd800 && ord <= 0xdbff && i < len - 1) {
+                        chr += encodedStr.charAt(i + 1);
+                        encodedStrArr.push(chr);
+                        i++;
+                    } else {
+                        encodedStrArr.push(chr);
+                    }
+                }
+                encodedStr = encodedStrArr;
+            }
+
+            // first line includes the charset and language info and needs to be encoded
+            // even if it does not contain any unicode characters
+            line = "utf-8''";
+            let encoded = true;
+            startPos = 0;
+
+            // process text with unicode or special chars
+            for (i = 0, len = encodedStr.length; i < len; i++) {
+                chr = encodedStr[i];
+
+                if (encoded) {
+                    chr = this.safeEncodeURIComponent(chr);
+                } else {
+                    // try to urlencode current char
+                    chr = chr === ' ' ? chr : this.safeEncodeURIComponent(chr);
+                    // By default it is not required to encode a line, the need
+                    // only appears when the string contains unicode or special chars
+                    // in this case we start processing the line over and encode all chars
+                    if (chr !== encodedStr[i]) {
+                        // Check if it is even possible to add the encoded char to the line
+                        // If not, there is no reason to use this line, just push it to the list
+                        // and start a new line with the char that needs encoding
+                        if ((this.safeEncodeURIComponent(line) + chr).length >= maxLength) {
+                            list.push({
+                                line,
+                                encoded
+                            });
+                            line = '';
+                            startPos = i - 1;
+                        } else {
+                            encoded = true;
+                            i = startPos;
+                            line = '';
+                            continue;
+                        }
+                    }
+                }
+
+                // if the line is already too long, push it to the list and start a new one
+                if ((line + chr).length >= maxLength) {
+                    list.push({
+                        line,
+                        encoded
+                    });
+                    line = chr = encodedStr[i] === ' ' ? ' ' : this.safeEncodeURIComponent(encodedStr[i]);
+                    if (chr === encodedStr[i]) {
+                        encoded = false;
+                        startPos = i - 1;
+                    } else {
+                        encoded = true;
+                    }
+                } else {
+                    line += chr;
+                }
+            }
+
+            if (line) {
+                list.push({
+                    line,
+                    encoded
+                });
+            }
+        }
+
+        return list.map((item, i) => ({
+            // encoded lines: {name}*{part}*
+            // unencoded lines: {name}*{part}
+            // if any line needs to be encoded then the first line (part==0) is always encoded
+            key: key + '*' + i + (item.encoded ? '*' : ''),
+            value: item.line
+        }));
+    },
+
+    /**
+     * Parses a header value with key=value arguments into a structured
+     * object.
+     *
+     *   parseHeaderValue('content-type: text/plain; CHARSET='UTF-8'') ->
+     *   {
+     *     'value': 'text/plain',
+     *     'params': {
+     *       'charset': 'UTF-8'
+     *     }
+     *   }
+     *
+     * @param {String} str Header value
+     * @return {Object} Header value as a parsed structure
+     */
+    parseHeaderValue(str) {
+        let response = {
+            value: false,
+            params: {}
+        };
+        let key = false;
+        let value = '';
+        let type = 'value';
+        let quote = false;
+        let escaped = false;
+        let chr;
+
+        for (let i = 0, len = str.length; i < len; i++) {
+            chr = str.charAt(i);
+            if (type === 'key') {
+                if (chr === '=') {
+                    key = value.trim().toLowerCase();
+                    type = 'value';
+                    value = '';
+                    continue;
+                }
+                value += chr;
+            } else {
+                if (escaped) {
+                    value += chr;
+                } else if (chr === '\\') {
+                    escaped = true;
+                    continue;
+                } else if (quote && chr === quote) {
+                    quote = false;
+                } else if (!quote && chr === '"') {
+                    quote = chr;
+                } else if (!quote && chr === ';') {
+                    if (key === false) {
+                        response.value = value.trim();
+                    } else {
+                        response.params[key] = value.trim();
+                    }
+                    type = 'key';
+                    value = '';
+                } else {
+                    value += chr;
+                }
+                escaped = false;
+            }
+        }
+
+        if (type === 'value') {
+            if (key === false) {
+                response.value = value.trim();
+            } else {
+                response.params[key] = value.trim();
+            }
+        } else if (value.trim()) {
+            response.params[value.trim().toLowerCase()] = '';
+        }
+
+        // handle parameter value continuations
+        // https://tools.ietf.org/html/rfc2231#section-3
+
+        // preprocess values
+        Object.keys(response.params).forEach(key => {
+            let actualKey, nr, match, value;
+            if ((match = key.match(/(\*(\d+)|\*(\d+)\*|\*)$/))) {
+                actualKey = key.substr(0, match.index);
+                nr = Number(match[2] || match[3]) || 0;
+
+                if (!response.params[actualKey] || typeof response.params[actualKey] !== 'object') {
+                    response.params[actualKey] = {
+                        charset: false,
+                        values: []
+                    };
+                }
+
+                value = response.params[key];
+
+                if (nr === 0 && match[0].substr(-1) === '*' && (match = value.match(/^([^']*)'[^']*'(.*)$/))) {
+                    response.params[actualKey].charset = match[1] || 'iso-8859-1';
+                    value = match[2];
+                }
+
+                response.params[actualKey].values[nr] = value;
+
+                // remove the old reference
+                delete response.params[key];
+            }
+        });
+
+        // concatenate split rfc2231 strings and convert encoded strings to mime encoded words
+        Object.keys(response.params).forEach(key => {
+            let value;
+            if (response.params[key] && Array.isArray(response.params[key].values)) {
+                value = response.params[key].values.map(val => val || '').join('');
+
+                if (response.params[key].charset) {
+                    // convert "%AB" to "=?charset?Q?=AB?="
+                    response.params[key] =
+                        '=?' +
+                        response.params[key].charset +
+                        '?Q?' +
+                        value
+                            // fix invalidly encoded chars
+                            .replace(/[=?_\s]/g, s => {
+                                let c = s.charCodeAt(0).toString(16);
+                                if (s === ' ') {
+                                    return '_';
+                                } else {
+                                    return '%' + (c.length < 2 ? '0' : '') + c;
+                                }
+                            })
+                            // change from urlencoding to percent encoding
+                            .replace(/%/g, '=') +
+                        '?=';
+                } else {
+                    response.params[key] = value;
+                }
+            }
+        });
+
+        return response;
+    },
+
+    /**
+     * Returns file extension for a content type string. If no suitable extensions
+     * are found, 'bin' is used as the default extension
+     *
+     * @param {String} mimeType Content type to be checked for
+     * @return {String} File extension
+     */
+    detectExtension: mimeType => mimeTypes.detectExtension(mimeType),
+
+    /**
+     * Returns content type for a file extension. If no suitable content types
+     * are found, 'application/octet-stream' is used as the default content type
+     *
+     * @param {String} extension Extension to be checked for
+     * @return {String} File extension
+     */
+    detectMimeType: extension => mimeTypes.detectMimeType(extension),
+
+    /**
+     * Folds long lines, useful for folding header lines (afterSpace=false) and
+     * flowed text (afterSpace=true)
+     *
+     * @param {String} str String to be folded
+     * @param {Number} [lineLength=76] Maximum length of a line
+     * @param {Boolean} afterSpace If true, leave a space in th end of a line
+     * @return {String} String with folded lines
+     */
+    foldLines(str, lineLength, afterSpace) {
+        str = (str || '').toString();
+        lineLength = lineLength || 76;
+
+        let pos = 0,
+            len = str.length,
+            result = '',
+            line,
+            match;
+
+        while (pos < len) {
+            line = str.substr(pos, lineLength);
+            if (line.length < lineLength) {
+                result += line;
+                break;
+            }
+            if ((match = line.match(/^[^\n\r]*(\r?\n|\r)/))) {
+                line = match[0];
+                result += line;
+                pos += line.length;
+                continue;
+            } else if ((match = line.match(/(\s+)[^\s]*$/)) && match[0].length - (afterSpace ? (match[1] || '').length : 0) < line.length) {
+                line = line.substr(0, line.length - (match[0].length - (afterSpace ? (match[1] || '').length : 0)));
+            } else if ((match = str.substr(pos + line.length).match(/^[^\s]+(\s*)/))) {
+                line = line + match[0].substr(0, match[0].length - (!afterSpace ? (match[1] || '').length : 0));
+            }
+
+            result += line;
+            pos += line.length;
+            if (pos < len) {
+                result += '\r\n';
+            }
+        }
+
+        return result;
+    },
+
+    /**
+     * Splits a mime encoded string. Needed for dividing mime words into smaller chunks
+     *
+     * @param {String} str Mime encoded string to be split up
+     * @param {Number} maxlen Maximum length of characters for one part (minimum 12)
+     * @return {Array} Split string
+     */
+    splitMimeEncodedString: (str, maxlen) => {
+        let curLine,
+            match,
+            chr,
+            done,
+            lines = [];
+
+        // require at least 12 symbols to fit possible 4 octet UTF-8 sequences
+        maxlen = Math.max(maxlen || 0, 12);
+
+        while (str.length) {
+            curLine = str.substr(0, maxlen);
+
+            // move incomplete escaped char back to main
+            if ((match = curLine.match(/[=][0-9A-F]?$/i))) {
+                curLine = curLine.substr(0, match.index);
+            }
+
+            done = false;
+            while (!done) {
+                done = true;
+                // check if not middle of a unicode char sequence
+                if ((match = str.substr(curLine.length).match(/^[=]([0-9A-F]{2})/i))) {
+                    chr = parseInt(match[1], 16);
+                    // invalid sequence, move one char back anc recheck
+                    if (chr < 0xc2 && chr > 0x7f) {
+                        curLine = curLine.substr(0, curLine.length - 3);
+                        done = false;
+                    }
+                }
+            }
+
+            if (curLine.length) {
+                lines.push(curLine);
+            }
+            str = str.substr(curLine.length);
+        }
+
+        return lines;
+    },
+
+    encodeURICharComponent: chr => {
+        let res = '';
+        let ord = chr.charCodeAt(0).toString(16).toUpperCase();
+
+        if (ord.length % 2) {
+            ord = '0' + ord;
+        }
+
+        if (ord.length > 2) {
+            for (let i = 0, len = ord.length / 2; i < len; i++) {
+                res += '%' + ord.substr(i, 2);
+            }
+        } else {
+            res += '%' + ord;
+        }
+
+        return res;
+    },
+
+    safeEncodeURIComponent(str) {
+        str = (str || '').toString();
+
+        try {
+            // might throw if we try to encode invalid sequences, eg. partial emoji
+            str = encodeURIComponent(str);
+        } catch (E) {
+            // should never run
+            return str.replace(/[^\x00-\x1F *'()<>@,;:\\"[\]?=\u007F-\uFFFF]+/g, '');
+        }
+
+        // ensure chars that are not handled by encodeURICompent are converted as well
+        return str.replace(/[\x00-\x1F *'()<>@,;:\\"[\]?=\u007F-\uFFFF]/g, chr => this.encodeURICharComponent(chr));
+    }
+};
diff --git a/backend/node_modules/nodemailer/lib/mime-funcs/mime-types.js b/backend/node_modules/nodemailer/lib/mime-funcs/mime-types.js
new file mode 100644
index 0000000..ef5a7c4
--- /dev/null
+++ b/backend/node_modules/nodemailer/lib/mime-funcs/mime-types.js
@@ -0,0 +1,2104 @@
+/* eslint quote-props: 0 */
+
+'use strict';
+
+const path = require('path');
+
+const defaultMimeType = 'application/octet-stream';
+const defaultExtension = 'bin';
+
+const mimeTypes = new Map([
+    ['application/acad', 'dwg'],
+    ['application/applixware', 'aw'],
+    ['application/arj', 'arj'],
+    ['application/atom+xml', 'xml'],
+    ['application/atomcat+xml', 'atomcat'],
+    ['application/atomsvc+xml', 'atomsvc'],
+    ['application/base64', ['mm', 'mme']],
+    ['application/binhex', 'hqx'],
+    ['application/binhex4', 'hqx'],
+    ['application/book', ['book', 'boo']],
+    ['application/ccxml+xml,', 'ccxml'],
+    ['application/cdf', 'cdf'],
+    ['application/cdmi-capability', 'cdmia'],
+    ['application/cdmi-container', 'cdmic'],
+    ['application/cdmi-domain', 'cdmid'],
+    ['application/cdmi-object', 'cdmio'],
+    ['application/cdmi-queue', 'cdmiq'],
+    ['application/clariscad', 'ccad'],
+    ['application/commonground', 'dp'],
+    ['application/cu-seeme', 'cu'],
+    ['application/davmount+xml', 'davmount'],
+    ['application/drafting', 'drw'],
+    ['application/dsptype', 'tsp'],
+    ['application/dssc+der', 'dssc'],
+    ['application/dssc+xml', 'xdssc'],
+    ['application/dxf', 'dxf'],
+    ['application/ecmascript', ['js', 'es']],
+    ['application/emma+xml', 'emma'],
+    ['application/envoy', 'evy'],
+    ['application/epub+zip', 'epub'],
+    ['application/excel', ['xls', 'xl', 'xla', 'xlb', 'xlc', 'xld', 'xlk', 'xll', 'xlm', 'xlt', 'xlv', 'xlw']],
+    ['application/exi', 'exi'],
+    ['application/font-tdpfr', 'pfr'],
+    ['application/fractals', 'fif'],
+    ['application/freeloader', 'frl'],
+    ['application/futuresplash', 'spl'],
+    ['application/geo+json', 'geojson'],
+    ['application/gnutar', 'tgz'],
+    ['application/groupwise', 'vew'],
+    ['application/hlp', 'hlp'],
+    ['application/hta', 'hta'],
+    ['application/hyperstudio', 'stk'],
+    ['application/i-deas', 'unv'],
+    ['application/iges', ['iges', 'igs']],
+    ['application/inf', 'inf'],
+    ['application/internet-property-stream', 'acx'],
+    ['application/ipfix', 'ipfix'],
+    ['application/java', 'class'],
+    ['application/java-archive', 'jar'],
+    ['application/java-byte-code', 'class'],
+    ['application/java-serialized-object', 'ser'],
+    ['application/java-vm', 'class'],
+    ['application/javascript', 'js'],
+    ['application/json', 'json'],
+    ['application/lha', 'lha'],
+    ['application/lzx', 'lzx'],
+    ['application/mac-binary', 'bin'],
+    ['application/mac-binhex', 'hqx'],
+    ['application/mac-binhex40', 'hqx'],
+    ['application/mac-compactpro', 'cpt'],
+    ['application/macbinary', 'bin'],
+    ['application/mads+xml', 'mads'],
+    ['application/marc', 'mrc'],
+    ['application/marcxml+xml', 'mrcx'],
+    ['application/mathematica', 'ma'],
+    ['application/mathml+xml', 'mathml'],
+    ['application/mbedlet', 'mbd'],
+    ['application/mbox', 'mbox'],
+    ['application/mcad', 'mcd'],
+    ['application/mediaservercontrol+xml', 'mscml'],
+    ['application/metalink4+xml', 'meta4'],
+    ['application/mets+xml', 'mets'],
+    ['application/mime', 'aps'],
+    ['application/mods+xml', 'mods'],
+    ['application/mp21', 'm21'],
+    ['application/mp4', 'mp4'],
+    ['application/mspowerpoint', ['ppt', 'pot', 'pps', 'ppz']],
+    ['application/msword', ['doc', 'dot', 'w6w', 'wiz', 'word']],
+    ['application/mswrite', 'wri'],
+    ['application/mxf', 'mxf'],
+    ['application/netmc', 'mcp'],
+    ['application/octet-stream', ['*']],
+    ['application/oda', 'oda'],
+    ['application/oebps-package+xml', 'opf'],
+    ['application/ogg', 'ogx'],
+    ['application/olescript', 'axs'],
+    ['application/onenote', 'onetoc'],
+    ['application/patch-ops-error+xml', 'xer'],
+    ['application/pdf', 'pdf'],
+    ['application/pgp-encrypted', 'asc'],
+    ['application/pgp-signature', 'pgp'],
+    ['application/pics-rules', 'prf'],
+    ['application/pkcs-12', 'p12'],
+    ['application/pkcs-crl', 'crl'],
+    ['application/pkcs10', 'p10'],
+    ['application/pkcs7-mime', ['p7c', 'p7m']],
+    ['application/pkcs7-signature', 'p7s'],
+    ['application/pkcs8', 'p8'],
+    ['application/pkix-attr-cert', 'ac'],
+    ['application/pkix-cert', ['cer', 'crt']],
+    ['application/pkix-crl', 'crl'],
+    ['application/pkix-pkipath', 'pkipath'],
+    ['application/pkixcmp', 'pki'],
+    ['application/plain', 'text'],
+    ['application/pls+xml', 'pls'],
+    ['application/postscript', ['ps', 'ai', 'eps']],
+    ['application/powerpoint', 'ppt'],
+    ['application/pro_eng', ['part', 'prt']],
+    ['application/prs.cww', 'cww'],
+    ['application/pskc+xml', 'pskcxml'],
+    ['application/rdf+xml', 'rdf'],
+    ['application/reginfo+xml', 'rif'],
+    ['application/relax-ng-compact-syntax', 'rnc'],
+    ['application/resource-lists+xml', 'rl'],
+    ['application/resource-lists-diff+xml', 'rld'],
+    ['application/ringing-tones', 'rng'],
+    ['application/rls-services+xml', 'rs'],
+    ['application/rsd+xml', 'rsd'],
+    ['application/rss+xml', 'xml'],
+    ['application/rtf', ['rtf', 'rtx']],
+    ['application/sbml+xml', 'sbml'],
+    ['application/scvp-cv-request', 'scq'],
+    ['application/scvp-cv-response', 'scs'],
+    ['application/scvp-vp-request', 'spq'],
+    ['application/scvp-vp-response', 'spp'],
+    ['application/sdp', 'sdp'],
+    ['application/sea', 'sea'],
+    ['application/set', 'set'],
+    ['application/set-payment-initiation', 'setpay'],
+    ['application/set-registration-initiation', 'setreg'],
+    ['application/shf+xml', 'shf'],
+    ['application/sla', 'stl'],
+    ['application/smil', ['smi', 'smil']],
+    ['application/smil+xml', 'smi'],
+    ['application/solids', 'sol'],
+    ['application/sounder', 'sdr'],
+    ['application/sparql-query', 'rq'],
+    ['application/sparql-results+xml', 'srx'],
+    ['application/srgs', 'gram'],
+    ['application/srgs+xml', 'grxml'],
+    ['application/sru+xml', 'sru'],
+    ['application/ssml+xml', 'ssml'],
+    ['application/step', ['step', 'stp']],
+    ['application/streamingmedia', 'ssm'],
+    ['application/tei+xml', 'tei'],
+    ['application/thraud+xml', 'tfi'],
+    ['application/timestamped-data', 'tsd'],
+    ['application/toolbook', 'tbk'],
+    ['application/vda', 'vda'],
+    ['application/vnd.3gpp.pic-bw-large', 'plb'],
+    ['application/vnd.3gpp.pic-bw-small', 'psb'],
+    ['application/vnd.3gpp.pic-bw-var', 'pvb'],
+    ['application/vnd.3gpp2.tcap', 'tcap'],
+    ['application/vnd.3m.post-it-notes', 'pwn'],
+    ['application/vnd.accpac.simply.aso', 'aso'],
+    ['application/vnd.accpac.simply.imp', 'imp'],
+    ['application/vnd.acucobol', 'acu'],
+    ['application/vnd.acucorp', 'atc'],
+    ['application/vnd.adobe.air-application-installer-package+zip', 'air'],
+    ['application/vnd.adobe.fxp', 'fxp'],
+    ['application/vnd.adobe.xdp+xml', 'xdp'],
+    ['application/vnd.adobe.xfdf', 'xfdf'],
+    ['application/vnd.ahead.space', 'ahead'],
+    ['application/vnd.airzip.filesecure.azf', 'azf'],
+    ['application/vnd.airzip.filesecure.azs', 'azs'],
+    ['application/vnd.amazon.ebook', 'azw'],
+    ['application/vnd.americandynamics.acc', 'acc'],
+    ['application/vnd.amiga.ami', 'ami'],
+    ['application/vnd.android.package-archive', 'apk'],
+    ['application/vnd.anser-web-certificate-issue-initiation', 'cii'],
+    ['application/vnd.anser-web-funds-transfer-initiation', 'fti'],
+    ['application/vnd.antix.game-component', 'atx'],
+    ['application/vnd.apple.installer+xml', 'mpkg'],
+    ['application/vnd.apple.mpegurl', 'm3u8'],
+    ['application/vnd.aristanetworks.swi', 'swi'],
+    ['application/vnd.audiograph', 'aep'],
+    ['application/vnd.blueice.multipass', 'mpm'],
+    ['application/vnd.bmi', 'bmi'],
+    ['application/vnd.businessobjects', 'rep'],
+    ['application/vnd.chemdraw+xml', 'cdxml'],
+    ['application/vnd.chipnuts.karaoke-mmd', 'mmd'],
+    ['application/vnd.cinderella', 'cdy'],
+    ['application/vnd.claymore', 'cla'],
+    ['application/vnd.cloanto.rp9', 'rp9'],
+    ['application/vnd.clonk.c4group', 'c4g'],
+    ['application/vnd.cluetrust.cartomobile-config', 'c11amc'],
+    ['application/vnd.cluetrust.cartomobile-config-pkg', 'c11amz'],
+    ['application/vnd.commonspace', 'csp'],
+    ['application/vnd.contact.cmsg', 'cdbcmsg'],
+    ['application/vnd.cosmocaller', 'cmc'],
+    ['application/vnd.crick.clicker', 'clkx'],
+    ['application/vnd.crick.clicker.keyboard', 'clkk'],
+    ['application/vnd.crick.clicker.palette', 'clkp'],
+    ['application/vnd.crick.clicker.template', 'clkt'],
+    ['application/vnd.crick.clicker.wordbank', 'clkw'],
+    ['application/vnd.criticaltools.wbs+xml', 'wbs'],
+    ['application/vnd.ctc-posml', 'pml'],
+    ['application/vnd.cups-ppd', 'ppd'],
+    ['application/vnd.curl.car', 'car'],
+    ['application/vnd.curl.pcurl', 'pcurl'],
+    ['application/vnd.data-vision.rdz', 'rdz'],
+    ['application/vnd.denovo.fcselayout-link', 'fe_launch'],
+    ['application/vnd.dna', 'dna'],
+    ['application/vnd.dolby.mlp', 'mlp'],
+    ['application/vnd.dpgraph', 'dpg'],
+    ['application/vnd.dreamfactory', 'dfac'],
+    ['application/vnd.dvb.ait', 'ait'],
+    ['application/vnd.dvb.service', 'svc'],
+    ['application/vnd.dynageo', 'geo'],
+    ['application/vnd.ecowin.chart', 'mag'],
+    ['application/vnd.enliven', 'nml'],
+    ['application/vnd.epson.esf', 'esf'],
+    ['application/vnd.epson.msf', 'msf'],
+    ['application/vnd.epson.quickanime', 'qam'],
+    ['application/vnd.epson.salt', 'slt'],
+    ['application/vnd.epson.ssf', 'ssf'],
+    ['application/vnd.eszigno3+xml', 'es3'],
+    ['application/vnd.ezpix-album', 'ez2'],
+    ['application/vnd.ezpix-package', 'ez3'],
+    ['application/vnd.fdf', 'fdf'],
+    ['application/vnd.fdsn.seed', 'seed'],
+    ['application/vnd.flographit', 'gph'],
+    ['application/vnd.fluxtime.clip', 'ftc'],
+    ['application/vnd.framemaker', 'fm'],
+    ['application/vnd.frogans.fnc', 'fnc'],
+    ['application/vnd.frogans.ltf', 'ltf'],
+    ['application/vnd.fsc.weblaunch', 'fsc'],
+    ['application/vnd.fujitsu.oasys', 'oas'],
+    ['application/vnd.fujitsu.oasys2', 'oa2'],
+    ['application/vnd.fujitsu.oasys3', 'oa3'],
+    ['application/vnd.fujitsu.oasysgp', 'fg5'],
+    ['application/vnd.fujitsu.oasysprs', 'bh2'],
+    ['application/vnd.fujixerox.ddd', 'ddd'],
+    ['application/vnd.fujixerox.docuworks', 'xdw'],
+    ['application/vnd.fujixerox.docuworks.binder', 'xbd'],
+    ['application/vnd.fuzzysheet', 'fzs'],
+    ['application/vnd.genomatix.tuxedo', 'txd'],
+    ['application/vnd.geogebra.file', 'ggb'],
+    ['application/vnd.geogebra.tool', 'ggt'],
+    ['application/vnd.geometry-explorer', 'gex'],
+    ['application/vnd.geonext', 'gxt'],
+    ['application/vnd.geoplan', 'g2w'],
+    ['application/vnd.geospace', 'g3w'],
+    ['application/vnd.gmx', 'gmx'],
+    ['application/vnd.google-earth.kml+xml', 'kml'],
+    ['application/vnd.google-earth.kmz', 'kmz'],
+    ['application/vnd.grafeq', 'gqf'],
+    ['application/vnd.groove-account', 'gac'],
+    ['application/vnd.groove-help', 'ghf'],
+    ['application/vnd.groove-identity-message', 'gim'],
+    ['application/vnd.groove-injector', 'grv'],
+    ['application/vnd.groove-tool-message', 'gtm'],
+    ['application/vnd.groove-tool-template', 'tpl'],
+    ['application/vnd.groove-vcard', 'vcg'],
+    ['application/vnd.hal+xml', 'hal'],
+    ['application/vnd.handheld-entertainment+xml', 'zmm'],
+    ['application/vnd.hbci', 'hbci'],
+    ['application/vnd.hhe.lesson-player', 'les'],
+    ['application/vnd.hp-hpgl', ['hgl', 'hpg', 'hpgl']],
+    ['application/vnd.hp-hpid', 'hpid'],
+    ['application/vnd.hp-hps', 'hps'],
+    ['application/vnd.hp-jlyt', 'jlt'],
+    ['application/vnd.hp-pcl', 'pcl'],
+    ['application/vnd.hp-pclxl', 'pclxl'],
+    ['application/vnd.hydrostatix.sof-data', 'sfd-hdstx'],
+    ['application/vnd.hzn-3d-crossword', 'x3d'],
+    ['application/vnd.ibm.minipay', 'mpy'],
+    ['application/vnd.ibm.modcap', 'afp'],
+    ['application/vnd.ibm.rights-management', 'irm'],
+    ['application/vnd.ibm.secure-container', 'sc'],
+    ['application/vnd.iccprofile', 'icc'],
+    ['application/vnd.igloader', 'igl'],
+    ['application/vnd.immervision-ivp', 'ivp'],
+    ['application/vnd.immervision-ivu', 'ivu'],
+    ['application/vnd.insors.igm', 'igm'],
+    ['application/vnd.intercon.formnet', 'xpw'],
+    ['application/vnd.intergeo', 'i2g'],
+    ['application/vnd.intu.qbo', 'qbo'],
+    ['application/vnd.intu.qfx', 'qfx'],
+    ['application/vnd.ipunplugged.rcprofile', 'rcprofile'],
+    ['application/vnd.irepository.package+xml', 'irp'],
+    ['application/vnd.is-xpr', 'xpr'],
+    ['application/vnd.isac.fcs', 'fcs'],
+    ['application/vnd.jam', 'jam'],
+    ['application/vnd.jcp.javame.midlet-rms', 'rms'],
+    ['application/vnd.jisp', 'jisp'],
+    ['application/vnd.joost.joda-archive', 'joda'],
+    ['application/vnd.kahootz', 'ktz'],
+    ['application/vnd.kde.karbon', 'karbon'],
+    ['application/vnd.kde.kchart', 'chrt'],
+    ['application/vnd.kde.kformula', 'kfo'],
+    ['application/vnd.kde.kivio', 'flw'],
+    ['application/vnd.kde.kontour', 'kon'],
+    ['application/vnd.kde.kpresenter', 'kpr'],
+    ['application/vnd.kde.kspread', 'ksp'],
+    ['application/vnd.kde.kword', 'kwd'],
+    ['application/vnd.kenameaapp', 'htke'],
+    ['application/vnd.kidspiration', 'kia'],
+    ['application/vnd.kinar', 'kne'],
+    ['application/vnd.koan', 'skp'],
+    ['application/vnd.kodak-descriptor', 'sse'],
+    ['application/vnd.las.las+xml', 'lasxml'],
+    ['application/vnd.llamagraphics.life-balance.desktop', 'lbd'],
+    ['application/vnd.llamagraphics.life-balance.exchange+xml', 'lbe'],
+    ['application/vnd.lotus-1-2-3', '123'],
+    ['application/vnd.lotus-approach', 'apr'],
+    ['application/vnd.lotus-freelance', 'pre'],
+    ['application/vnd.lotus-notes', 'nsf'],
+    ['application/vnd.lotus-organizer', 'org'],
+    ['application/vnd.lotus-screencam', 'scm'],
+    ['application/vnd.lotus-wordpro', 'lwp'],
+    ['application/vnd.macports.portpkg', 'portpkg'],
+    ['application/vnd.mcd', 'mcd'],
+    ['application/vnd.medcalcdata', 'mc1'],
+    ['application/vnd.mediastation.cdkey', 'cdkey'],
+    ['application/vnd.mfer', 'mwf'],
+    ['application/vnd.mfmp', 'mfm'],
+    ['application/vnd.micrografx.flo', 'flo'],
+    ['application/vnd.micrografx.igx', 'igx'],
+    ['application/vnd.mif', 'mif'],
+    ['application/vnd.mobius.daf', 'daf'],
+    ['application/vnd.mobius.dis', 'dis'],
+    ['application/vnd.mobius.mbk', 'mbk'],
+    ['application/vnd.mobius.mqy', 'mqy'],
+    ['application/vnd.mobius.msl', 'msl'],
+    ['application/vnd.mobius.plc', 'plc'],
+    ['application/vnd.mobius.txf', 'txf'],
+    ['application/vnd.mophun.application', 'mpn'],
+    ['application/vnd.mophun.certificate', 'mpc'],
+    ['application/vnd.mozilla.xul+xml', 'xul'],
+    ['application/vnd.ms-artgalry', 'cil'],
+    ['application/vnd.ms-cab-compressed', 'cab'],
+    ['application/vnd.ms-excel', ['xls', 'xla', 'xlc', 'xlm', 'xlt', 'xlw', 'xlb', 'xll']],
+    ['application/vnd.ms-excel.addin.macroenabled.12', 'xlam'],
+    ['application/vnd.ms-excel.sheet.binary.macroenabled.12', 'xlsb'],
+    ['application/vnd.ms-excel.sheet.macroenabled.12', 'xlsm'],
+    ['application/vnd.ms-excel.template.macroenabled.12', 'xltm'],
+    ['application/vnd.ms-fontobject', 'eot'],
+    ['application/vnd.ms-htmlhelp', 'chm'],
+    ['application/vnd.ms-ims', 'ims'],
+    ['application/vnd.ms-lrm', 'lrm'],
+    ['application/vnd.ms-officetheme', 'thmx'],
+    ['application/vnd.ms-outlook', 'msg'],
+    ['application/vnd.ms-pki.certstore', 'sst'],
+    ['application/vnd.ms-pki.pko', 'pko'],
+    ['application/vnd.ms-pki.seccat', 'cat'],
+    ['application/vnd.ms-pki.stl', 'stl'],
+    ['application/vnd.ms-pkicertstore', 'sst'],
+    ['application/vnd.ms-pkiseccat', 'cat'],
+    ['application/vnd.ms-pkistl', 'stl'],
+    ['application/vnd.ms-powerpoint', ['ppt', 'pot', 'pps', 'ppa', 'pwz']],
+    ['application/vnd.ms-powerpoint.addin.macroenabled.12', 'ppam'],
+    ['application/vnd.ms-powerpoint.presentation.macroenabled.12', 'pptm'],
+    ['application/vnd.ms-powerpoint.slide.macroenabled.12', 'sldm'],
+    ['application/vnd.ms-powerpoint.slideshow.macroenabled.12', 'ppsm'],
+    ['application/vnd.ms-powerpoint.template.macroenabled.12', 'potm'],
+    ['application/vnd.ms-project', 'mpp'],
+    ['application/vnd.ms-word.document.macroenabled.12', 'docm'],
+    ['application/vnd.ms-word.template.macroenabled.12', 'dotm'],
+    ['application/vnd.ms-works', ['wks', 'wcm', 'wdb', 'wps']],
+    ['application/vnd.ms-wpl', 'wpl'],
+    ['application/vnd.ms-xpsdocument', 'xps'],
+    ['application/vnd.mseq', 'mseq'],
+    ['application/vnd.musician', 'mus'],
+    ['application/vnd.muvee.style', 'msty'],
+    ['application/vnd.neurolanguage.nlu', 'nlu'],
+    ['application/vnd.noblenet-directory', 'nnd'],
+    ['application/vnd.noblenet-sealer', 'nns'],
+    ['application/vnd.noblenet-web', 'nnw'],
+    ['application/vnd.nokia.configuration-message', 'ncm'],
+    ['application/vnd.nokia.n-gage.data', 'ngdat'],
+    ['application/vnd.nokia.n-gage.symbian.install', 'n-gage'],
+    ['application/vnd.nokia.radio-preset', 'rpst'],
+    ['application/vnd.nokia.radio-presets', 'rpss'],
+    ['application/vnd.nokia.ringing-tone', 'rng'],
+    ['application/vnd.novadigm.edm', 'edm'],
+    ['application/vnd.novadigm.edx', 'edx'],
+    ['application/vnd.novadigm.ext', 'ext'],
+    ['application/vnd.oasis.opendocument.chart', 'odc'],
+    ['application/vnd.oasis.opendocument.chart-template', 'otc'],
+    ['application/vnd.oasis.opendocument.database', 'odb'],
+    ['application/vnd.oasis.opendocument.formula', 'odf'],
+    ['application/vnd.oasis.opendocument.formula-template', 'odft'],
+    ['application/vnd.oasis.opendocument.graphics', 'odg'],
+    ['application/vnd.oasis.opendocument.graphics-template', 'otg'],
+    ['application/vnd.oasis.opendocument.image', 'odi'],
+    ['application/vnd.oasis.opendocument.image-template', 'oti'],
+    ['application/vnd.oasis.opendocument.presentation', 'odp'],
+    ['application/vnd.oasis.opendocument.presentation-template', 'otp'],
+    ['application/vnd.oasis.opendocument.spreadsheet', 'ods'],
+    ['application/vnd.oasis.opendocument.spreadsheet-template', 'ots'],
+    ['application/vnd.oasis.opendocument.text', 'odt'],
+    ['application/vnd.oasis.opendocument.text-master', 'odm'],
+    ['application/vnd.oasis.opendocument.text-template', 'ott'],
+    ['application/vnd.oasis.opendocument.text-web', 'oth'],
+    ['application/vnd.olpc-sugar', 'xo'],
+    ['application/vnd.oma.dd2+xml', 'dd2'],
+    ['application/vnd.openofficeorg.extension', 'oxt'],
+    ['application/vnd.openxmlformats-officedocument.presentationml.presentation', 'pptx'],
+    ['application/vnd.openxmlformats-officedocument.presentationml.slide', 'sldx'],
+    ['application/vnd.openxmlformats-officedocument.presentationml.slideshow', 'ppsx'],
+    ['application/vnd.openxmlformats-officedocument.presentationml.template', 'potx'],
+    ['application/vnd.openxmlformats-officedocument.spreadsheetml.sheet', 'xlsx'],
+    ['application/vnd.openxmlformats-officedocument.spreadsheetml.template', 'xltx'],
+    ['application/vnd.openxmlformats-officedocument.wordprocessingml.document', 'docx'],
+    ['application/vnd.openxmlformats-officedocument.wordprocessingml.template', 'dotx'],
+    ['application/vnd.osgeo.mapguide.package', 'mgp'],
+    ['application/vnd.osgi.dp', 'dp'],
+    ['application/vnd.palm', 'pdb'],
+    ['application/vnd.pawaafile', 'paw'],
+    ['application/vnd.pg.format', 'str'],
+    ['application/vnd.pg.osasli', 'ei6'],
+    ['application/vnd.picsel', 'efif'],
+    ['application/vnd.pmi.widget', 'wg'],
+    ['application/vnd.pocketlearn', 'plf'],
+    ['application/vnd.powerbuilder6', 'pbd'],
+    ['application/vnd.previewsystems.box', 'box'],
+    ['application/vnd.proteus.magazine', 'mgz'],
+    ['application/vnd.publishare-delta-tree', 'qps'],
+    ['application/vnd.pvi.ptid1', 'ptid'],
+    ['application/vnd.quark.quarkxpress', 'qxd'],
+    ['application/vnd.realvnc.bed', 'bed'],
+    ['application/vnd.recordare.musicxml', 'mxl'],
+    ['application/vnd.recordare.musicxml+xml', 'musicxml'],
+    ['application/vnd.rig.cryptonote', 'cryptonote'],
+    ['application/vnd.rim.cod', 'cod'],
+    ['application/vnd.rn-realmedia', 'rm'],
+    ['application/vnd.rn-realplayer', 'rnx'],
+    ['application/vnd.route66.link66+xml', 'link66'],
+    ['application/vnd.sailingtracker.track', 'st'],
+    ['application/vnd.seemail', 'see'],
+    ['application/vnd.sema', 'sema'],
+    ['application/vnd.semd', 'semd'],
+    ['application/vnd.semf', 'semf'],
+    ['application/vnd.shana.informed.formdata', 'ifm'],
+    ['application/vnd.shana.informed.formtemplate', 'itp'],
+    ['application/vnd.shana.informed.interchange', 'iif'],
+    ['application/vnd.shana.informed.package', 'ipk'],
+    ['application/vnd.simtech-mindmapper', 'twd'],
+    ['application/vnd.smaf', 'mmf'],
+    ['application/vnd.smart.teacher', 'teacher'],
+    ['application/vnd.solent.sdkm+xml', 'sdkm'],
+    ['application/vnd.spotfire.dxp', 'dxp'],
+    ['application/vnd.spotfire.sfs', 'sfs'],
+    ['application/vnd.stardivision.calc', 'sdc'],
+    ['application/vnd.stardivision.draw', 'sda'],
+    ['application/vnd.stardivision.impress', 'sdd'],
+    ['application/vnd.stardivision.math', 'smf'],
+    ['application/vnd.stardivision.writer', 'sdw'],
+    ['application/vnd.stardivision.writer-global', 'sgl'],
+    ['application/vnd.stepmania.stepchart', 'sm'],
+    ['application/vnd.sun.xml.calc', 'sxc'],
+    ['application/vnd.sun.xml.calc.template', 'stc'],
+    ['application/vnd.sun.xml.draw', 'sxd'],
+    ['application/vnd.sun.xml.draw.template', 'std'],
+    ['application/vnd.sun.xml.impress', 'sxi'],
+    ['application/vnd.sun.xml.impress.template', 'sti'],
+    ['application/vnd.sun.xml.math', 'sxm'],
+    ['application/vnd.sun.xml.writer', 'sxw'],
+    ['application/vnd.sun.xml.writer.global', 'sxg'],
+    ['application/vnd.sun.xml.writer.template', 'stw'],
+    ['application/vnd.sus-calendar', 'sus'],
+    ['application/vnd.svd', 'svd'],
+    ['application/vnd.symbian.install', 'sis'],
+    ['application/vnd.syncml+xml', 'xsm'],
+    ['application/vnd.syncml.dm+wbxml', 'bdm'],
+    ['application/vnd.syncml.dm+xml', 'xdm'],
+    ['application/vnd.tao.intent-module-archive', 'tao'],
+    ['application/vnd.tmobile-livetv', 'tmo'],
+    ['application/vnd.trid.tpt', 'tpt'],
+    ['application/vnd.triscape.mxs', 'mxs'],
+    ['application/vnd.trueapp', 'tra'],
+    ['application/vnd.ufdl', 'ufd'],
+    ['application/vnd.uiq.theme', 'utz'],
+    ['application/vnd.umajin', 'umj'],
+    ['application/vnd.unity', 'unityweb'],
+    ['application/vnd.uoml+xml', 'uoml'],
+    ['application/vnd.vcx', 'vcx'],
+    ['application/vnd.visio', 'vsd'],
+    ['application/vnd.visionary', 'vis'],
+    ['application/vnd.vsf', 'vsf'],
+    ['application/vnd.wap.wbxml', 'wbxml'],
+    ['application/vnd.wap.wmlc', 'wmlc'],
+    ['application/vnd.wap.wmlscriptc', 'wmlsc'],
+    ['application/vnd.webturbo', 'wtb'],
+    ['application/vnd.wolfram.player', 'nbp'],
+    ['application/vnd.wordperfect', 'wpd'],
+    ['application/vnd.wqd', 'wqd'],
+    ['application/vnd.wt.stf', 'stf'],
+    ['application/vnd.xara', ['web', 'xar']],
+    ['application/vnd.xfdl', 'xfdl'],
+    ['application/vnd.yamaha.hv-dic', 'hvd'],
+    ['application/vnd.yamaha.hv-script', 'hvs'],
+    ['application/vnd.yamaha.hv-voice', 'hvp'],
+    ['application/vnd.yamaha.openscoreformat', 'osf'],
+    ['application/vnd.yamaha.openscoreformat.osfpvg+xml', 'osfpvg'],
+    ['application/vnd.yamaha.smaf-audio', 'saf'],
+    ['application/vnd.yamaha.smaf-phrase', 'spf'],
+    ['application/vnd.yellowriver-custom-menu', 'cmp'],
+    ['application/vnd.zul', 'zir'],
+    ['application/vnd.zzazz.deck+xml', 'zaz'],
+    ['application/vocaltec-media-desc', 'vmd'],
+    ['application/vocaltec-media-file', 'vmf'],
+    ['application/voicexml+xml', 'vxml'],
+    ['application/widget', 'wgt'],
+    ['application/winhlp', 'hlp'],
+    ['application/wordperfect', ['wp', 'wp5', 'wp6', 'wpd']],
+    ['application/wordperfect6.0', ['w60', 'wp5']],
+    ['application/wordperfect6.1', 'w61'],
+    ['application/wsdl+xml', 'wsdl'],
+    ['application/wspolicy+xml', 'wspolicy'],
+    ['application/x-123', 'wk1'],
+    ['application/x-7z-compressed', '7z'],
+    ['application/x-abiword', 'abw'],
+    ['application/x-ace-compressed', 'ace'],
+    ['application/x-aim', 'aim'],
+    ['application/x-authorware-bin', 'aab'],
+    ['application/x-authorware-map', 'aam'],
+    ['application/x-authorware-seg', 'aas'],
+    ['application/x-bcpio', 'bcpio'],
+    ['application/x-binary', 'bin'],
+    ['application/x-binhex40', 'hqx'],
+    ['application/x-bittorrent', 'torrent'],
+    ['application/x-bsh', ['bsh', 'sh', 'shar']],
+    ['application/x-bytecode.elisp', 'elc'],
+    ['application/x-bytecode.python', 'pyc'],
+    ['application/x-bzip', 'bz'],
+    ['application/x-bzip2', ['boz', 'bz2']],
+    ['application/x-cdf', 'cdf'],
+    ['application/x-cdlink', 'vcd'],
+    ['application/x-chat', ['cha', 'chat']],
+    ['application/x-chess-pgn', 'pgn'],
+    ['application/x-cmu-raster', 'ras'],
+    ['application/x-cocoa', 'cco'],
+    ['application/x-compactpro', 'cpt'],
+    ['application/x-compress', 'z'],
+    ['application/x-compressed', ['tgz', 'gz', 'z', 'zip']],
+    ['application/x-conference', 'nsc'],
+    ['application/x-cpio', 'cpio'],
+    ['application/x-cpt', 'cpt'],
+    ['application/x-csh', 'csh'],
+    ['application/x-debian-package', 'deb'],
+    ['application/x-deepv', 'deepv'],
+    ['application/x-director', ['dir', 'dcr', 'dxr']],
+    ['application/x-doom', 'wad'],
+    ['application/x-dtbncx+xml', 'ncx'],
+    ['application/x-dtbook+xml', 'dtb'],
+    ['application/x-dtbresource+xml', 'res'],
+    ['application/x-dvi', 'dvi'],
+    ['application/x-elc', 'elc'],
+    ['application/x-envoy', ['env', 'evy']],
+    ['application/x-esrehber', 'es'],
+    ['application/x-excel', ['xls', 'xla', 'xlb', 'xlc', 'xld', 'xlk', 'xll', 'xlm', 'xlt', 'xlv', 'xlw']],
+    ['application/x-font-bdf', 'bdf'],
+    ['application/x-font-ghostscript', 'gsf'],
+    ['application/x-font-linux-psf', 'psf'],
+    ['application/x-font-otf', 'otf'],
+    ['application/x-font-pcf', 'pcf'],
+    ['application/x-font-snf', 'snf'],
+    ['application/x-font-ttf', 'ttf'],
+    ['application/x-font-type1', 'pfa'],
+    ['application/x-font-woff', 'woff'],
+    ['application/x-frame', 'mif'],
+    ['application/x-freelance', 'pre'],
+    ['application/x-futuresplash', 'spl'],
+    ['application/x-gnumeric', 'gnumeric'],
+    ['application/x-gsp', 'gsp'],
+    ['application/x-gss', 'gss'],
+    ['application/x-gtar', 'gtar'],
+    ['application/x-gzip', ['gz', 'gzip']],
+    ['application/x-hdf', 'hdf'],
+    ['application/x-helpfile', ['help', 'hlp']],
+    ['application/x-httpd-imap', 'imap'],
+    ['application/x-ima', 'ima'],
+    ['application/x-internet-signup', ['ins', 'isp']],
+    ['application/x-internett-signup', 'ins'],
+    ['application/x-inventor', 'iv'],
+    ['application/x-ip2', 'ip'],
+    ['application/x-iphone', 'iii'],
+    ['application/x-java-class', 'class'],
+    ['application/x-java-commerce', 'jcm'],
+    ['application/x-java-jnlp-file', 'jnlp'],
+    ['application/x-javascript', 'js'],
+    ['application/x-koan', ['skd', 'skm', 'skp', 'skt']],
+    ['application/x-ksh', 'ksh'],
+    ['application/x-latex', ['latex', 'ltx']],
+    ['application/x-lha', 'lha'],
+    ['application/x-lisp', 'lsp'],
+    ['application/x-livescreen', 'ivy'],
+    ['application/x-lotus', 'wq1'],
+    ['application/x-lotusscreencam', 'scm'],
+    ['application/x-lzh', 'lzh'],
+    ['application/x-lzx', 'lzx'],
+    ['application/x-mac-binhex40', 'hqx'],
+    ['application/x-macbinary', 'bin'],
+    ['application/x-magic-cap-package-1.0', 'mc$'],
+    ['application/x-mathcad', 'mcd'],
+    ['application/x-meme', 'mm'],
+    ['application/x-midi', ['mid', 'midi']],
+    ['application/x-mif', 'mif'],
+    ['application/x-mix-transfer', 'nix'],
+    ['application/x-mobipocket-ebook', 'prc'],
+    ['application/x-mplayer2', 'asx'],
+    ['application/x-ms-application', 'application'],
+    ['application/x-ms-wmd', 'wmd'],
+    ['application/x-ms-wmz', 'wmz'],
+    ['application/x-ms-xbap', 'xbap'],
+    ['application/x-msaccess', 'mdb'],
+    ['application/x-msbinder', 'obd'],
+    ['application/x-mscardfile', 'crd'],
+    ['application/x-msclip', 'clp'],
+    ['application/x-msdownload', ['exe', 'dll']],
+    ['application/x-msexcel', ['xls', 'xla', 'xlw']],
+    ['application/x-msmediaview', ['mvb', 'm13', 'm14']],
+    ['application/x-msmetafile', 'wmf'],
+    ['application/x-msmoney', 'mny'],
+    ['application/x-mspowerpoint', 'ppt'],
+    ['application/x-mspublisher', 'pub'],
+    ['application/x-msschedule', 'scd'],
+    ['application/x-msterminal', 'trm'],
+    ['application/x-mswrite', 'wri'],
+    ['application/x-navi-animation', 'ani'],
+    ['application/x-navidoc', 'nvd'],
+    ['application/x-navimap', 'map'],
+    ['application/x-navistyle', 'stl'],
+    ['application/x-netcdf', ['cdf', 'nc']],
+    ['application/x-newton-compatible-pkg', 'pkg'],
+    ['application/x-nokia-9000-communicator-add-on-software', 'aos'],
+    ['application/x-omc', 'omc'],
+    ['application/x-omcdatamaker', 'omcd'],
+    ['application/x-omcregerator', 'omcr'],
+    ['application/x-pagemaker', ['pm4', 'pm5']],
+    ['application/x-pcl', 'pcl'],
+    ['application/x-perfmon', ['pma', 'pmc', 'pml', 'pmr', 'pmw']],
+    ['application/x-pixclscript', 'plx'],
+    ['application/x-pkcs10', 'p10'],
+    ['application/x-pkcs12', ['p12', 'pfx']],
+    ['application/x-pkcs7-certificates', ['p7b', 'spc']],
+    ['application/x-pkcs7-certreqresp', 'p7r'],
+    ['application/x-pkcs7-mime', ['p7m', 'p7c']],
+    ['application/x-pkcs7-signature', ['p7s', 'p7a']],
+    ['application/x-pointplus', 'css'],
+    ['application/x-portable-anymap', 'pnm'],
+    ['application/x-project', ['mpc', 'mpt', 'mpv', 'mpx']],
+    ['application/x-qpro', 'wb1'],
+    ['application/x-rar-compressed', 'rar'],
+    ['application/x-rtf', 'rtf'],
+    ['application/x-sdp', 'sdp'],
+    ['application/x-sea', 'sea'],
+    ['application/x-seelogo', 'sl'],
+    ['application/x-sh', 'sh'],
+    ['application/x-shar', ['shar', 'sh']],
+    ['application/x-shockwave-flash', 'swf'],
+    ['application/x-silverlight-app', 'xap'],
+    ['application/x-sit', 'sit'],
+    ['application/x-sprite', ['spr', 'sprite']],
+    ['application/x-stuffit', 'sit'],
+    ['application/x-stuffitx', 'sitx'],
+    ['application/x-sv4cpio', 'sv4cpio'],
+    ['application/x-sv4crc', 'sv4crc'],
+    ['application/x-tar', 'tar'],
+    ['application/x-tbook', ['sbk', 'tbk']],
+    ['application/x-tcl', 'tcl'],
+    ['application/x-tex', 'tex'],
+    ['application/x-tex-tfm', 'tfm'],
+    ['application/x-texinfo', ['texi', 'texinfo']],
+    ['application/x-troff', ['roff', 't', 'tr']],
+    ['application/x-troff-man', 'man'],
+    ['application/x-troff-me', 'me'],
+    ['application/x-troff-ms', 'ms'],
+    ['application/x-troff-msvideo', 'avi'],
+    ['application/x-ustar', 'ustar'],
+    ['application/x-visio', ['vsd', 'vst', 'vsw']],
+    ['application/x-vnd.audioexplosion.mzz', 'mzz'],
+    ['application/x-vnd.ls-xpix', 'xpix'],
+    ['application/x-vrml', 'vrml'],
+    ['application/x-wais-source', ['src', 'wsrc']],
+    ['application/x-winhelp', 'hlp'],
+    ['application/x-wintalk', 'wtk'],
+    ['application/x-world', ['wrl', 'svr']],
+    ['application/x-wpwin', 'wpd'],
+    ['application/x-wri', 'wri'],
+    ['application/x-x509-ca-cert', ['cer', 'crt', 'der']],
+    ['application/x-x509-user-cert', 'crt'],
+    ['application/x-xfig', 'fig'],
+    ['application/x-xpinstall', 'xpi'],
+    ['application/x-zip-compressed', 'zip'],
+    ['application/xcap-diff+xml', 'xdf'],
+    ['application/xenc+xml', 'xenc'],
+    ['application/xhtml+xml', 'xhtml'],
+    ['application/xml', 'xml'],
+    ['application/xml-dtd', 'dtd'],
+    ['application/xop+xml', 'xop'],
+    ['application/xslt+xml', 'xslt'],
+    ['application/xspf+xml', 'xspf'],
+    ['application/xv+xml', 'mxml'],
+    ['application/yang', 'yang'],
+    ['application/yin+xml', 'yin'],
+    ['application/ynd.ms-pkipko', 'pko'],
+    ['application/zip', 'zip'],
+    ['audio/adpcm', 'adp'],
+    ['audio/aiff', ['aiff', 'aif', 'aifc']],
+    ['audio/basic', ['snd', 'au']],
+    ['audio/it', 'it'],
+    ['audio/make', ['funk', 'my', 'pfunk']],
+    ['audio/make.my.funk', 'pfunk'],
+    ['audio/mid', ['mid', 'rmi']],
+    ['audio/midi', ['midi', 'kar', 'mid']],
+    ['audio/mod', 'mod'],
+    ['audio/mp4', 'mp4a'],
+    ['audio/mpeg', ['mpga', 'mp3', 'm2a', 'mp2', 'mpa', 'mpg']],
+    ['audio/mpeg3', 'mp3'],
+    ['audio/nspaudio', ['la', 'lma']],
+    ['audio/ogg', 'oga'],
+    ['audio/s3m', 's3m'],
+    ['audio/tsp-audio', 'tsi'],
+    ['audio/tsplayer', 'tsp'],
+    ['audio/vnd.dece.audio', 'uva'],
+    ['audio/vnd.digital-winds', 'eol'],
+    ['audio/vnd.dra', 'dra'],
+    ['audio/vnd.dts', 'dts'],
+    ['audio/vnd.dts.hd', 'dtshd'],
+    ['audio/vnd.lucent.voice', 'lvp'],
+    ['audio/vnd.ms-playready.media.pya', 'pya'],
+    ['audio/vnd.nuera.ecelp4800', 'ecelp4800'],
+    ['audio/vnd.nuera.ecelp7470', 'ecelp7470'],
+    ['audio/vnd.nuera.ecelp9600', 'ecelp9600'],
+    ['audio/vnd.qcelp', 'qcp'],
+    ['audio/vnd.rip', 'rip'],
+    ['audio/voc', 'voc'],
+    ['audio/voxware', 'vox'],
+    ['audio/wav', 'wav'],
+    ['audio/webm', 'weba'],
+    ['audio/x-aac', 'aac'],
+    ['audio/x-adpcm', 'snd'],
+    ['audio/x-aiff', ['aiff', 'aif', 'aifc']],
+    ['audio/x-au', 'au'],
+    ['audio/x-gsm', ['gsd', 'gsm']],
+    ['audio/x-jam', 'jam'],
+    ['audio/x-liveaudio', 'lam'],
+    ['audio/x-mid', ['mid', 'midi']],
+    ['audio/x-midi', ['midi', 'mid']],
+    ['audio/x-mod', 'mod'],
+    ['audio/x-mpeg', 'mp2'],
+    ['audio/x-mpeg-3', 'mp3'],
+    ['audio/x-mpegurl', 'm3u'],
+    ['audio/x-mpequrl', 'm3u'],
+    ['audio/x-ms-wax', 'wax'],
+    ['audio/x-ms-wma', 'wma'],
+    ['audio/x-nspaudio', ['la', 'lma']],
+    ['audio/x-pn-realaudio', ['ra', 'ram', 'rm', 'rmm', 'rmp']],
+    ['audio/x-pn-realaudio-plugin', ['ra', 'rmp', 'rpm']],
+    ['audio/x-psid', 'sid'],
+    ['audio/x-realaudio', 'ra'],
+    ['audio/x-twinvq', 'vqf'],
+    ['audio/x-twinvq-plugin', ['vqe', 'vql']],
+    ['audio/x-vnd.audioexplosion.mjuicemediafile', 'mjf'],
+    ['audio/x-voc', 'voc'],
+    ['audio/x-wav', 'wav'],
+    ['audio/xm', 'xm'],
+    ['chemical/x-cdx', 'cdx'],
+    ['chemical/x-cif', 'cif'],
+    ['chemical/x-cmdf', 'cmdf'],
+    ['chemical/x-cml', 'cml'],
+    ['chemical/x-csml', 'csml'],
+    ['chemical/x-pdb', ['pdb', 'xyz']],
+    ['chemical/x-xyz', 'xyz'],
+    ['drawing/x-dwf', 'dwf'],
+    ['i-world/i-vrml', 'ivr'],
+    ['image/bmp', ['bmp', 'bm']],
+    ['image/cgm', 'cgm'],
+    ['image/cis-cod', 'cod'],
+    ['image/cmu-raster', ['ras', 'rast']],
+    ['image/fif', 'fif'],
+    ['image/florian', ['flo', 'turbot']],
+    ['image/g3fax', 'g3'],
+    ['image/gif', 'gif'],
+    ['image/ief', ['ief', 'iefs']],
+    ['image/jpeg', ['jpeg', 'jpe', 'jpg', 'jfif', 'jfif-tbnl']],
+    ['image/jutvision', 'jut'],
+    ['image/ktx', 'ktx'],
+    ['image/naplps', ['nap', 'naplps']],
+    ['image/pict', ['pic', 'pict']],
+    ['image/pipeg', 'jfif'],
+    ['image/pjpeg', ['jfif', 'jpe', 'jpeg', 'jpg']],
+    ['image/png', ['png', 'x-png']],
+    ['image/prs.btif', 'btif'],
+    ['image/svg+xml', 'svg'],
+    ['image/tiff', ['tif', 'tiff']],
+    ['image/vasa', 'mcf'],
+    ['image/vnd.adobe.photoshop', 'psd'],
+    ['image/vnd.dece.graphic', 'uvi'],
+    ['image/vnd.djvu', 'djvu'],
+    ['image/vnd.dvb.subtitle', 'sub'],
+    ['image/vnd.dwg', ['dwg', 'dxf', 'svf']],
+    ['image/vnd.dxf', 'dxf'],
+    ['image/vnd.fastbidsheet', 'fbs'],
+    ['image/vnd.fpx', 'fpx'],
+    ['image/vnd.fst', 'fst'],
+    ['image/vnd.fujixerox.edmics-mmr', 'mmr'],
+    ['image/vnd.fujixerox.edmics-rlc', 'rlc'],
+    ['image/vnd.ms-modi', 'mdi'],
+    ['image/vnd.net-fpx', ['fpx', 'npx']],
+    ['image/vnd.rn-realflash', 'rf'],
+    ['image/vnd.rn-realpix', 'rp'],
+    ['image/vnd.wap.wbmp', 'wbmp'],
+    ['image/vnd.xiff', 'xif'],
+    ['image/webp', 'webp'],
+    ['image/x-cmu-raster', 'ras'],
+    ['image/x-cmx', 'cmx'],
+    ['image/x-dwg', ['dwg', 'dxf', 'svf']],
+    ['image/x-freehand', 'fh'],
+    ['image/x-icon', 'ico'],
+    ['image/x-jg', 'art'],
+    ['image/x-jps', 'jps'],
+    ['image/x-niff', ['niff', 'nif']],
+    ['image/x-pcx', 'pcx'],
+    ['image/x-pict', ['pct', 'pic']],
+    ['image/x-portable-anymap', 'pnm'],
+    ['image/x-portable-bitmap', 'pbm'],
+    ['image/x-portable-graymap', 'pgm'],
+    ['image/x-portable-greymap', 'pgm'],
+    ['image/x-portable-pixmap', 'ppm'],
+    ['image/x-quicktime', ['qif', 'qti', 'qtif']],
+    ['image/x-rgb', 'rgb'],
+    ['image/x-tiff', ['tif', 'tiff']],
+    ['image/x-windows-bmp', 'bmp'],
+    ['image/x-xbitmap', 'xbm'],
+    ['image/x-xbm', 'xbm'],
+    ['image/x-xpixmap', ['xpm', 'pm']],
+    ['image/x-xwd', 'xwd'],
+    ['image/x-xwindowdump', 'xwd'],
+    ['image/xbm', 'xbm'],
+    ['image/xpm', 'xpm'],
+    ['message/rfc822', ['eml', 'mht', 'mhtml', 'nws', 'mime']],
+    ['model/iges', ['iges', 'igs']],
+    ['model/mesh', 'msh'],
+    ['model/vnd.collada+xml', 'dae'],
+    ['model/vnd.dwf', 'dwf'],
+    ['model/vnd.gdl', 'gdl'],
+    ['model/vnd.gtw', 'gtw'],
+    ['model/vnd.mts', 'mts'],
+    ['model/vnd.vtu', 'vtu'],
+    ['model/vrml', ['vrml', 'wrl', 'wrz']],
+    ['model/x-pov', 'pov'],
+    ['multipart/x-gzip', 'gzip'],
+    ['multipart/x-ustar', 'ustar'],
+    ['multipart/x-zip', 'zip'],
+    ['music/crescendo', ['mid', 'midi']],
+    ['music/x-karaoke', 'kar'],
+    ['paleovu/x-pv', 'pvu'],
+    ['text/asp', 'asp'],
+    ['text/calendar', 'ics'],
+    ['text/css', 'css'],
+    ['text/csv', 'csv'],
+    ['text/ecmascript', 'js'],
+    ['text/h323', '323'],
+    ['text/html', ['html', 'htm', 'stm', 'acgi', 'htmls', 'htx', 'shtml']],
+    ['text/iuls', 'uls'],
+    ['text/javascript', 'js'],
+    ['text/mcf', 'mcf'],
+    ['text/n3', 'n3'],
+    ['text/pascal', 'pas'],
+    [
+        'text/plain',
+        [
+            'txt',
+            'bas',
+            'c',
+            'h',
+            'c++',
+            'cc',
+            'com',
+            'conf',
+            'cxx',
+            'def',
+            'f',
+            'f90',
+            'for',
+            'g',
+            'hh',
+            'idc',
+            'jav',
+            'java',
+            'list',
+            'log',
+            'lst',
+            'm',
+            'mar',
+            'pl',
+            'sdml',
+            'text'
+        ]
+    ],
+    ['text/plain-bas', 'par'],
+    ['text/prs.lines.tag', 'dsc'],
+    ['text/richtext', ['rtx', 'rt', 'rtf']],
+    ['text/scriplet', 'wsc'],
+    ['text/scriptlet', 'sct'],
+    ['text/sgml', ['sgm', 'sgml']],
+    ['text/tab-separated-values', 'tsv'],
+    ['text/troff', 't'],
+    ['text/turtle', 'ttl'],
+    ['text/uri-list', ['uni', 'unis', 'uri', 'uris']],
+    ['text/vnd.abc', 'abc'],
+    ['text/vnd.curl', 'curl'],
+    ['text/vnd.curl.dcurl', 'dcurl'],
+    ['text/vnd.curl.mcurl', 'mcurl'],
+    ['text/vnd.curl.scurl', 'scurl'],
+    ['text/vnd.fly', 'fly'],
+    ['text/vnd.fmi.flexstor', 'flx'],
+    ['text/vnd.graphviz', 'gv'],
+    ['text/vnd.in3d.3dml', '3dml'],
+    ['text/vnd.in3d.spot', 'spot'],
+    ['text/vnd.rn-realtext', 'rt'],
+    ['text/vnd.sun.j2me.app-descriptor', 'jad'],
+    ['text/vnd.wap.wml', 'wml'],
+    ['text/vnd.wap.wmlscript', 'wmls'],
+    ['text/webviewhtml', 'htt'],
+    ['text/x-asm', ['asm', 's']],
+    ['text/x-audiosoft-intra', 'aip'],
+    ['text/x-c', ['c', 'cc', 'cpp']],
+    ['text/x-component', 'htc'],
+    ['text/x-fortran', ['for', 'f', 'f77', 'f90']],
+    ['text/x-h', ['h', 'hh']],
+    ['text/x-java-source', ['java', 'jav']],
+    ['text/x-java-source,java', 'java'],
+    ['text/x-la-asf', 'lsx'],
+    ['text/x-m', 'm'],
+    ['text/x-pascal', 'p'],
+    ['text/x-script', 'hlb'],
+    ['text/x-script.csh', 'csh'],
+    ['text/x-script.elisp', 'el'],
+    ['text/x-script.guile', 'scm'],
+    ['text/x-script.ksh', 'ksh'],
+    ['text/x-script.lisp', 'lsp'],
+    ['text/x-script.perl', 'pl'],
+    ['text/x-script.perl-module', 'pm'],
+    ['text/x-script.phyton', 'py'],
+    ['text/x-script.rexx', 'rexx'],
+    ['text/x-script.scheme', 'scm'],
+    ['text/x-script.sh', 'sh'],
+    ['text/x-script.tcl', 'tcl'],
+    ['text/x-script.tcsh', 'tcsh'],
+    ['text/x-script.zsh', 'zsh'],
+    ['text/x-server-parsed-html', ['shtml', 'ssi']],
+    ['text/x-setext', 'etx'],
+    ['text/x-sgml', ['sgm', 'sgml']],
+    ['text/x-speech', ['spc', 'talk']],
+    ['text/x-uil', 'uil'],
+    ['text/x-uuencode', ['uu', 'uue']],
+    ['text/x-vcalendar', 'vcs'],
+    ['text/x-vcard', 'vcf'],
+    ['text/xml', 'xml'],
+    ['video/3gpp', '3gp'],
+    ['video/3gpp2', '3g2'],
+    ['video/animaflex', 'afl'],
+    ['video/avi', 'avi'],
+    ['video/avs-video', 'avs'],
+    ['video/dl', 'dl'],
+    ['video/fli', 'fli'],
+    ['video/gl', 'gl'],
+    ['video/h261', 'h261'],
+    ['video/h263', 'h263'],
+    ['video/h264', 'h264'],
+    ['video/jpeg', 'jpgv'],
+    ['video/jpm', 'jpm'],
+    ['video/mj2', 'mj2'],
+    ['video/mp4', 'mp4'],
+    ['video/mpeg', ['mpeg', 'mp2', 'mpa', 'mpe', 'mpg', 'mpv2', 'm1v', 'm2v', 'mp3']],
+    ['video/msvideo', 'avi'],
+    ['video/ogg', 'ogv'],
+    ['video/quicktime', ['mov', 'qt', 'moov']],
+    ['video/vdo', 'vdo'],
+    ['video/vivo', ['viv', 'vivo']],
+    ['video/vnd.dece.hd', 'uvh'],
+    ['video/vnd.dece.mobile', 'uvm'],
+    ['video/vnd.dece.pd', 'uvp'],
+    ['video/vnd.dece.sd', 'uvs'],
+    ['video/vnd.dece.video', 'uvv'],
+    ['video/vnd.fvt', 'fvt'],
+    ['video/vnd.mpegurl', 'mxu'],
+    ['video/vnd.ms-playready.media.pyv', 'pyv'],
+    ['video/vnd.rn-realvideo', 'rv'],
+    ['video/vnd.uvvu.mp4', 'uvu'],
+    ['video/vnd.vivo', ['viv', 'vivo']],
+    ['video/vosaic', 'vos'],
+    ['video/webm', 'webm'],
+    ['video/x-amt-demorun', 'xdr'],
+    ['video/x-amt-showrun', 'xsr'],
+    ['video/x-atomic3d-feature', 'fmf'],
+    ['video/x-dl', 'dl'],
+    ['video/x-dv', ['dif', 'dv']],
+    ['video/x-f4v', 'f4v'],
+    ['video/x-fli', 'fli'],
+    ['video/x-flv', 'flv'],
+    ['video/x-gl', 'gl'],
+    ['video/x-isvideo', 'isu'],
+    ['video/x-la-asf', ['lsf', 'lsx']],
+    ['video/x-m4v', 'm4v'],
+    ['video/x-motion-jpeg', 'mjpg'],
+    ['video/x-mpeg', ['mp3', 'mp2']],
+    ['video/x-mpeq2a', 'mp2'],
+    ['video/x-ms-asf', ['asf', 'asr', 'asx']],
+    ['video/x-ms-asf-plugin', 'asx'],
+    ['video/x-ms-wm', 'wm'],
+    ['video/x-ms-wmv', 'wmv'],
+    ['video/x-ms-wmx', 'wmx'],
+    ['video/x-ms-wvx', 'wvx'],
+    ['video/x-msvideo', 'avi'],
+    ['video/x-qtc', 'qtc'],
+    ['video/x-scm', 'scm'],
+    ['video/x-sgi-movie', ['movie', 'mv']],
+    ['windows/metafile', 'wmf'],
+    ['www/mime', 'mime'],
+    ['x-conference/x-cooltalk', 'ice'],
+    ['x-music/x-midi', ['mid', 'midi']],
+    ['x-world/x-3dmf', ['3dm', '3dmf', 'qd3', 'qd3d']],
+    ['x-world/x-svr', 'svr'],
+    ['x-world/x-vrml', ['flr', 'vrml', 'wrl', 'wrz', 'xaf', 'xof']],
+    ['x-world/x-vrt', 'vrt'],
+    ['xgl/drawing', 'xgz'],
+    ['xgl/movie', 'xmz']
+]);
+const extensions = new Map([
+    ['123', 'application/vnd.lotus-1-2-3'],
+    ['323', 'text/h323'],
+    ['*', 'application/octet-stream'],
+    ['3dm', 'x-world/x-3dmf'],
+    ['3dmf', 'x-world/x-3dmf'],
+    ['3dml', 'text/vnd.in3d.3dml'],
+    ['3g2', 'video/3gpp2'],
+    ['3gp', 'video/3gpp'],
+    ['7z', 'application/x-7z-compressed'],
+    ['a', 'application/octet-stream'],
+    ['aab', 'application/x-authorware-bin'],
+    ['aac', 'audio/x-aac'],
+    ['aam', 'application/x-authorware-map'],
+    ['aas', 'application/x-authorware-seg'],
+    ['abc', 'text/vnd.abc'],
+    ['abw', 'application/x-abiword'],
+    ['ac', 'application/pkix-attr-cert'],
+    ['acc', 'application/vnd.americandynamics.acc'],
+    ['ace', 'application/x-ace-compressed'],
+    ['acgi', 'text/html'],
+    ['acu', 'application/vnd.acucobol'],
+    ['acx', 'application/internet-property-stream'],
+    ['adp', 'audio/adpcm'],
+    ['aep', 'application/vnd.audiograph'],
+    ['afl', 'video/animaflex'],
+    ['afp', 'application/vnd.ibm.modcap'],
+    ['ahead', 'application/vnd.ahead.space'],
+    ['ai', 'application/postscript'],
+    ['aif', ['audio/aiff', 'audio/x-aiff']],
+    ['aifc', ['audio/aiff', 'audio/x-aiff']],
+    ['aiff', ['audio/aiff', 'audio/x-aiff']],
+    ['aim', 'application/x-aim'],
+    ['aip', 'text/x-audiosoft-intra'],
+    ['air', 'application/vnd.adobe.air-application-installer-package+zip'],
+    ['ait', 'application/vnd.dvb.ait'],
+    ['ami', 'application/vnd.amiga.ami'],
+    ['ani', 'application/x-navi-animation'],
+    ['aos', 'application/x-nokia-9000-communicator-add-on-software'],
+    ['apk', 'application/vnd.android.package-archive'],
+    ['application', 'application/x-ms-application'],
+    ['apr', 'application/vnd.lotus-approach'],
+    ['aps', 'application/mime'],
+    ['arc', 'application/octet-stream'],
+    ['arj', ['application/arj', 'application/octet-stream']],
+    ['art', 'image/x-jg'],
+    ['asf', 'video/x-ms-asf'],
+    ['asm', 'text/x-asm'],
+    ['aso', 'application/vnd.accpac.simply.aso'],
+    ['asp', 'text/asp'],
+    ['asr', 'video/x-ms-asf'],
+    ['asx', ['video/x-ms-asf', 'application/x-mplayer2', 'video/x-ms-asf-plugin']],
+    ['atc', 'application/vnd.acucorp'],
+    ['atomcat', 'application/atomcat+xml'],
+    ['atomsvc', 'application/atomsvc+xml'],
+    ['atx', 'application/vnd.antix.game-component'],
+    ['au', ['audio/basic', 'audio/x-au']],
+    ['avi', ['video/avi', 'video/msvideo', 'application/x-troff-msvideo', 'video/x-msvideo']],
+    ['avs', 'video/avs-video'],
+    ['aw', 'application/applixware'],
+    ['axs', 'application/olescript'],
+    ['azf', 'application/vnd.airzip.filesecure.azf'],
+    ['azs', 'application/vnd.airzip.filesecure.azs'],
+    ['azw', 'application/vnd.amazon.ebook'],
+    ['bas', 'text/plain'],
+    ['bcpio', 'application/x-bcpio'],
+    ['bdf', 'application/x-font-bdf'],
+    ['bdm', 'application/vnd.syncml.dm+wbxml'],
+    ['bed', 'application/vnd.realvnc.bed'],
+    ['bh2', 'application/vnd.fujitsu.oasysprs'],
+    ['bin', ['application/octet-stream', 'application/mac-binary', 'application/macbinary', 'application/x-macbinary', 'application/x-binary']],
+    ['bm', 'image/bmp'],
+    ['bmi', 'application/vnd.bmi'],
+    ['bmp', ['image/bmp', 'image/x-windows-bmp']],
+    ['boo', 'application/book'],
+    ['book', 'application/book'],
+    ['box', 'application/vnd.previewsystems.box'],
+    ['boz', 'application/x-bzip2'],
+    ['bsh', 'application/x-bsh'],
+    ['btif', 'image/prs.btif'],
+    ['bz', 'application/x-bzip'],
+    ['bz2', 'application/x-bzip2'],
+    ['c', ['text/plain', 'text/x-c']],
+    ['c++', 'text/plain'],
+    ['c11amc', 'application/vnd.cluetrust.cartomobile-config'],
+    ['c11amz', 'application/vnd.cluetrust.cartomobile-config-pkg'],
+    ['c4g', 'application/vnd.clonk.c4group'],
+    ['cab', 'application/vnd.ms-cab-compressed'],
+    ['car', 'application/vnd.curl.car'],
+    ['cat', ['application/vnd.ms-pkiseccat', 'application/vnd.ms-pki.seccat']],
+    ['cc', ['text/plain', 'text/x-c']],
+    ['ccad', 'application/clariscad'],
+    ['cco', 'application/x-cocoa'],
+    ['ccxml', 'application/ccxml+xml,'],
+    ['cdbcmsg', 'application/vnd.contact.cmsg'],
+    ['cdf', ['application/cdf', 'application/x-cdf', 'application/x-netcdf']],
+    ['cdkey', 'application/vnd.mediastation.cdkey'],
+    ['cdmia', 'application/cdmi-capability'],
+    ['cdmic', 'application/cdmi-container'],
+    ['cdmid', 'application/cdmi-domain'],
+    ['cdmio', 'application/cdmi-object'],
+    ['cdmiq', 'application/cdmi-queue'],
+    ['cdx', 'chemical/x-cdx'],
+    ['cdxml', 'application/vnd.chemdraw+xml'],
+    ['cdy', 'application/vnd.cinderella'],
+    ['cer', ['application/pkix-cert', 'application/x-x509-ca-cert']],
+    ['cgm', 'image/cgm'],
+    ['cha', 'application/x-chat'],
+    ['chat', 'application/x-chat'],
+    ['chm', 'application/vnd.ms-htmlhelp'],
+    ['chrt', 'application/vnd.kde.kchart'],
+    ['cif', 'chemical/x-cif'],
+    ['cii', 'application/vnd.anser-web-certificate-issue-initiation'],
+    ['cil', 'application/vnd.ms-artgalry'],
+    ['cla', 'application/vnd.claymore'],
+    ['class', ['application/octet-stream', 'application/java', 'application/java-byte-code', 'application/java-vm', 'application/x-java-class']],
+    ['clkk', 'application/vnd.crick.clicker.keyboard'],
+    ['clkp', 'application/vnd.crick.clicker.palette'],
+    ['clkt', 'application/vnd.crick.clicker.template'],
+    ['clkw', 'application/vnd.crick.clicker.wordbank'],
+    ['clkx', 'application/vnd.crick.clicker'],
+    ['clp', 'application/x-msclip'],
+    ['cmc', 'application/vnd.cosmocaller'],
+    ['cmdf', 'chemical/x-cmdf'],
+    ['cml', 'chemical/x-cml'],
+    ['cmp', 'application/vnd.yellowriver-custom-menu'],
+    ['cmx', 'image/x-cmx'],
+    ['cod', ['image/cis-cod', 'application/vnd.rim.cod']],
+    ['com', ['application/octet-stream', 'text/plain']],
+    ['conf', 'text/plain'],
+    ['cpio', 'application/x-cpio'],
+    ['cpp', 'text/x-c'],
+    ['cpt', ['application/mac-compactpro', 'application/x-compactpro', 'application/x-cpt']],
+    ['crd', 'application/x-mscardfile'],
+    ['crl', ['application/pkix-crl', 'application/pkcs-crl']],
+    ['crt', ['application/pkix-cert', 'application/x-x509-user-cert', 'application/x-x509-ca-cert']],
+    ['cryptonote', 'application/vnd.rig.cryptonote'],
+    ['csh', ['text/x-script.csh', 'application/x-csh']],
+    ['csml', 'chemical/x-csml'],
+    ['csp', 'application/vnd.commonspace'],
+    ['css', ['text/css', 'application/x-pointplus']],
+    ['csv', 'text/csv'],
+    ['cu', 'application/cu-seeme'],
+    ['curl', 'text/vnd.curl'],
+    ['cww', 'application/prs.cww'],
+    ['cxx', 'text/plain'],
+    ['dae', 'model/vnd.collada+xml'],
+    ['daf', 'application/vnd.mobius.daf'],
+    ['davmount', 'application/davmount+xml'],
+    ['dcr', 'application/x-director'],
+    ['dcurl', 'text/vnd.curl.dcurl'],
+    ['dd2', 'application/vnd.oma.dd2+xml'],
+    ['ddd', 'application/vnd.fujixerox.ddd'],
+    ['deb', 'application/x-debian-package'],
+    ['deepv', 'application/x-deepv'],
+    ['def', 'text/plain'],
+    ['der', 'application/x-x509-ca-cert'],
+    ['dfac', 'application/vnd.dreamfactory'],
+    ['dif', 'video/x-dv'],
+    ['dir', 'application/x-director'],
+    ['dis', 'application/vnd.mobius.dis'],
+    ['djvu', 'image/vnd.djvu'],
+    ['dl', ['video/dl', 'video/x-dl']],
+    ['dll', 'application/x-msdownload'],
+    ['dms', 'application/octet-stream'],
+    ['dna', 'application/vnd.dna'],
+    ['doc', 'application/msword'],
+    ['docm', 'application/vnd.ms-word.document.macroenabled.12'],
+    ['docx', 'application/vnd.openxmlformats-officedocument.wordprocessingml.document'],
+    ['dot', 'application/msword'],
+    ['dotm', 'application/vnd.ms-word.template.macroenabled.12'],
+    ['dotx', 'application/vnd.openxmlformats-officedocument.wordprocessingml.template'],
+    ['dp', ['application/commonground', 'application/vnd.osgi.dp']],
+    ['dpg', 'application/vnd.dpgraph'],
+    ['dra', 'audio/vnd.dra'],
+    ['drw', 'application/drafting'],
+    ['dsc', 'text/prs.lines.tag'],
+    ['dssc', 'application/dssc+der'],
+    ['dtb', 'application/x-dtbook+xml'],
+    ['dtd', 'application/xml-dtd'],
+    ['dts', 'audio/vnd.dts'],
+    ['dtshd', 'audio/vnd.dts.hd'],
+    ['dump', 'application/octet-stream'],
+    ['dv', 'video/x-dv'],
+    ['dvi', 'application/x-dvi'],
+    ['dwf', ['model/vnd.dwf', 'drawing/x-dwf']],
+    ['dwg', ['application/acad', 'image/vnd.dwg', 'image/x-dwg']],
+    ['dxf', ['application/dxf', 'image/vnd.dwg', 'image/vnd.dxf', 'image/x-dwg']],
+    ['dxp', 'application/vnd.spotfire.dxp'],
+    ['dxr', 'application/x-director'],
+    ['ecelp4800', 'audio/vnd.nuera.ecelp4800'],
+    ['ecelp7470', 'audio/vnd.nuera.ecelp7470'],
+    ['ecelp9600', 'audio/vnd.nuera.ecelp9600'],
+    ['edm', 'application/vnd.novadigm.edm'],
+    ['edx', 'application/vnd.novadigm.edx'],
+    ['efif', 'application/vnd.picsel'],
+    ['ei6', 'application/vnd.pg.osasli'],
+    ['el', 'text/x-script.elisp'],
+    ['elc', ['application/x-elc', 'application/x-bytecode.elisp']],
+    ['eml', 'message/rfc822'],
+    ['emma', 'application/emma+xml'],
+    ['env', 'application/x-envoy'],
+    ['eol', 'audio/vnd.digital-winds'],
+    ['eot', 'application/vnd.ms-fontobject'],
+    ['eps', 'application/postscript'],
+    ['epub', 'application/epub+zip'],
+    ['es', ['application/ecmascript', 'application/x-esrehber']],
+    ['es3', 'application/vnd.eszigno3+xml'],
+    ['esf', 'application/vnd.epson.esf'],
+    ['etx', 'text/x-setext'],
+    ['evy', ['application/envoy', 'application/x-envoy']],
+    ['exe', ['application/octet-stream', 'application/x-msdownload']],
+    ['exi', 'application/exi'],
+    ['ext', 'application/vnd.novadigm.ext'],
+    ['ez2', 'application/vnd.ezpix-album'],
+    ['ez3', 'application/vnd.ezpix-package'],
+    ['f', ['text/plain', 'text/x-fortran']],
+    ['f4v', 'video/x-f4v'],
+    ['f77', 'text/x-fortran'],
+    ['f90', ['text/plain', 'text/x-fortran']],
+    ['fbs', 'image/vnd.fastbidsheet'],
+    ['fcs', 'application/vnd.isac.fcs'],
+    ['fdf', 'application/vnd.fdf'],
+    ['fe_launch', 'application/vnd.denovo.fcselayout-link'],
+    ['fg5', 'application/vnd.fujitsu.oasysgp'],
+    ['fh', 'image/x-freehand'],
+    ['fif', ['application/fractals', 'image/fif']],
+    ['fig', 'application/x-xfig'],
+    ['fli', ['video/fli', 'video/x-fli']],
+    ['flo', ['image/florian', 'application/vnd.micrografx.flo']],
+    ['flr', 'x-world/x-vrml'],
+    ['flv', 'video/x-flv'],
+    ['flw', 'application/vnd.kde.kivio'],
+    ['flx', 'text/vnd.fmi.flexstor'],
+    ['fly', 'text/vnd.fly'],
+    ['fm', 'application/vnd.framemaker'],
+    ['fmf', 'video/x-atomic3d-feature'],
+    ['fnc', 'application/vnd.frogans.fnc'],
+    ['for', ['text/plain', 'text/x-fortran']],
+    ['fpx', ['image/vnd.fpx', 'image/vnd.net-fpx']],
+    ['frl', 'application/freeloader'],
+    ['fsc', 'application/vnd.fsc.weblaunch'],
+    ['fst', 'image/vnd.fst'],
+    ['ftc', 'application/vnd.fluxtime.clip'],
+    ['fti', 'application/vnd.anser-web-funds-transfer-initiation'],
+    ['funk', 'audio/make'],
+    ['fvt', 'video/vnd.fvt'],
+    ['fxp', 'application/vnd.adobe.fxp'],
+    ['fzs', 'application/vnd.fuzzysheet'],
+    ['g', 'text/plain'],
+    ['g2w', 'application/vnd.geoplan'],
+    ['g3', 'image/g3fax'],
+    ['g3w', 'application/vnd.geospace'],
+    ['gac', 'application/vnd.groove-account'],
+    ['gdl', 'model/vnd.gdl'],
+    ['geo', 'application/vnd.dynageo'],
+    ['geojson', 'application/geo+json'],
+    ['gex', 'application/vnd.geometry-explorer'],
+    ['ggb', 'application/vnd.geogebra.file'],
+    ['ggt', 'application/vnd.geogebra.tool'],
+    ['ghf', 'application/vnd.groove-help'],
+    ['gif', 'image/gif'],
+    ['gim', 'application/vnd.groove-identity-message'],
+    ['gl', ['video/gl', 'video/x-gl']],
+    ['gmx', 'application/vnd.gmx'],
+    ['gnumeric', 'application/x-gnumeric'],
+    ['gph', 'application/vnd.flographit'],
+    ['gqf', 'application/vnd.grafeq'],
+    ['gram', 'application/srgs'],
+    ['grv', 'application/vnd.groove-injector'],
+    ['grxml', 'application/srgs+xml'],
+    ['gsd', 'audio/x-gsm'],
+    ['gsf', 'application/x-font-ghostscript'],
+    ['gsm', 'audio/x-gsm'],
+    ['gsp', 'application/x-gsp'],
+    ['gss', 'application/x-gss'],
+    ['gtar', 'application/x-gtar'],
+    ['gtm', 'application/vnd.groove-tool-message'],
+    ['gtw', 'model/vnd.gtw'],
+    ['gv', 'text/vnd.graphviz'],
+    ['gxt', 'application/vnd.geonext'],
+    ['gz', ['application/x-gzip', 'application/x-compressed']],
+    ['gzip', ['multipart/x-gzip', 'application/x-gzip']],
+    ['h', ['text/plain', 'text/x-h']],
+    ['h261', 'video/h261'],
+    ['h263', 'video/h263'],
+    ['h264', 'video/h264'],
+    ['hal', 'application/vnd.hal+xml'],
+    ['hbci', 'application/vnd.hbci'],
+    ['hdf', 'application/x-hdf'],
+    ['help', 'application/x-helpfile'],
+    ['hgl', 'application/vnd.hp-hpgl'],
+    ['hh', ['text/plain', 'text/x-h']],
+    ['hlb', 'text/x-script'],
+    ['hlp', ['application/winhlp', 'application/hlp', 'application/x-helpfile', 'application/x-winhelp']],
+    ['hpg', 'application/vnd.hp-hpgl'],
+    ['hpgl', 'application/vnd.hp-hpgl'],
+    ['hpid', 'application/vnd.hp-hpid'],
+    ['hps', 'application/vnd.hp-hps'],
+    [
+        'hqx',
+        [
+            'application/mac-binhex40',
+            'application/binhex',
+            'application/binhex4',
+            'application/mac-binhex',
+            'application/x-binhex40',
+            'application/x-mac-binhex40'
+        ]
+    ],
+    ['hta', 'application/hta'],
+    ['htc', 'text/x-component'],
+    ['htke', 'application/vnd.kenameaapp'],
+    ['htm', 'text/html'],
+    ['html', 'text/html'],
+    ['htmls', 'text/html'],
+    ['htt', 'text/webviewhtml'],
+    ['htx', 'text/html'],
+    ['hvd', 'application/vnd.yamaha.hv-dic'],
+    ['hvp', 'application/vnd.yamaha.hv-voice'],
+    ['hvs', 'application/vnd.yamaha.hv-script'],
+    ['i2g', 'application/vnd.intergeo'],
+    ['icc', 'application/vnd.iccprofile'],
+    ['ice', 'x-conference/x-cooltalk'],
+    ['ico', 'image/x-icon'],
+    ['ics', 'text/calendar'],
+    ['idc', 'text/plain'],
+    ['ief', 'image/ief'],
+    ['iefs', 'image/ief'],
+    ['ifm', 'application/vnd.shana.informed.formdata'],
+    ['iges', ['application/iges', 'model/iges']],
+    ['igl', 'application/vnd.igloader'],
+    ['igm', 'application/vnd.insors.igm'],
+    ['igs', ['application/iges', 'model/iges']],
+    ['igx', 'application/vnd.micrografx.igx'],
+    ['iif', 'application/vnd.shana.informed.interchange'],
+    ['iii', 'application/x-iphone'],
+    ['ima', 'application/x-ima'],
+    ['imap', 'application/x-httpd-imap'],
+    ['imp', 'application/vnd.accpac.simply.imp'],
+    ['ims', 'application/vnd.ms-ims'],
+    ['inf', 'application/inf'],
+    ['ins', ['application/x-internet-signup', 'application/x-internett-signup']],
+    ['ip', 'application/x-ip2'],
+    ['ipfix', 'application/ipfix'],
+    ['ipk', 'application/vnd.shana.informed.package'],
+    ['irm', 'application/vnd.ibm.rights-management'],
+    ['irp', 'application/vnd.irepository.package+xml'],
+    ['isp', 'application/x-internet-signup'],
+    ['isu', 'video/x-isvideo'],
+    ['it', 'audio/it'],
+    ['itp', 'application/vnd.shana.informed.formtemplate'],
+    ['iv', 'application/x-inventor'],
+    ['ivp', 'application/vnd.immervision-ivp'],
+    ['ivr', 'i-world/i-vrml'],
+    ['ivu', 'application/vnd.immervision-ivu'],
+    ['ivy', 'application/x-livescreen'],
+    ['jad', 'text/vnd.sun.j2me.app-descriptor'],
+    ['jam', ['application/vnd.jam', 'audio/x-jam']],
+    ['jar', 'application/java-archive'],
+    ['jav', ['text/plain', 'text/x-java-source']],
+    ['java', ['text/plain', 'text/x-java-source,java', 'text/x-java-source']],
+    ['jcm', 'application/x-java-commerce'],
+    ['jfif', ['image/pipeg', 'image/jpeg', 'image/pjpeg']],
+    ['jfif-tbnl', 'image/jpeg'],
+    ['jisp', 'application/vnd.jisp'],
+    ['jlt', 'application/vnd.hp-jlyt'],
+    ['jnlp', 'application/x-java-jnlp-file'],
+    ['joda', 'application/vnd.joost.joda-archive'],
+    ['jpe', ['image/jpeg', 'image/pjpeg']],
+    ['jpeg', ['image/jpeg', 'image/pjpeg']],
+    ['jpg', ['image/jpeg', 'image/pjpeg']],
+    ['jpgv', 'video/jpeg'],
+    ['jpm', 'video/jpm'],
+    ['jps', 'image/x-jps'],
+    ['js', ['application/javascript', 'application/ecmascript', 'text/javascript', 'text/ecmascript', 'application/x-javascript']],
+    ['json', 'application/json'],
+    ['jut', 'image/jutvision'],
+    ['kar', ['audio/midi', 'music/x-karaoke']],
+    ['karbon', 'application/vnd.kde.karbon'],
+    ['kfo', 'application/vnd.kde.kformula'],
+    ['kia', 'application/vnd.kidspiration'],
+    ['kml', 'application/vnd.google-earth.kml+xml'],
+    ['kmz', 'application/vnd.google-earth.kmz'],
+    ['kne', 'application/vnd.kinar'],
+    ['kon', 'application/vnd.kde.kontour'],
+    ['kpr', 'application/vnd.kde.kpresenter'],
+    ['ksh', ['application/x-ksh', 'text/x-script.ksh']],
+    ['ksp', 'application/vnd.kde.kspread'],
+    ['ktx', 'image/ktx'],
+    ['ktz', 'application/vnd.kahootz'],
+    ['kwd', 'application/vnd.kde.kword'],
+    ['la', ['audio/nspaudio', 'audio/x-nspaudio']],
+    ['lam', 'audio/x-liveaudio'],
+    ['lasxml', 'application/vnd.las.las+xml'],
+    ['latex', 'application/x-latex'],
+    ['lbd', 'application/vnd.llamagraphics.life-balance.desktop'],
+    ['lbe', 'application/vnd.llamagraphics.life-balance.exchange+xml'],
+    ['les', 'application/vnd.hhe.lesson-player'],
+    ['lha', ['application/octet-stream', 'application/lha', 'application/x-lha']],
+    ['lhx', 'application/octet-stream'],
+    ['link66', 'application/vnd.route66.link66+xml'],
+    ['list', 'text/plain'],
+    ['lma', ['audio/nspaudio', 'audio/x-nspaudio']],
+    ['log', 'text/plain'],
+    ['lrm', 'application/vnd.ms-lrm'],
+    ['lsf', 'video/x-la-asf'],
+    ['lsp', ['application/x-lisp', 'text/x-script.lisp']],
+    ['lst', 'text/plain'],
+    ['lsx', ['video/x-la-asf', 'text/x-la-asf']],
+    ['ltf', 'application/vnd.frogans.ltf'],
+    ['ltx', 'application/x-latex'],
+    ['lvp', 'audio/vnd.lucent.voice'],
+    ['lwp', 'application/vnd.lotus-wordpro'],
+    ['lzh', ['application/octet-stream', 'application/x-lzh']],
+    ['lzx', ['application/lzx', 'application/octet-stream', 'application/x-lzx']],
+    ['m', ['text/plain', 'text/x-m']],
+    ['m13', 'application/x-msmediaview'],
+    ['m14', 'application/x-msmediaview'],
+    ['m1v', 'video/mpeg'],
+    ['m21', 'application/mp21'],
+    ['m2a', 'audio/mpeg'],
+    ['m2v', 'video/mpeg'],
+    ['m3u', ['audio/x-mpegurl', 'audio/x-mpequrl']],
+    ['m3u8', 'application/vnd.apple.mpegurl'],
+    ['m4v', 'video/x-m4v'],
+    ['ma', 'application/mathematica'],
+    ['mads', 'application/mads+xml'],
+    ['mag', 'application/vnd.ecowin.chart'],
+    ['man', 'application/x-troff-man'],
+    ['map', 'application/x-navimap'],
+    ['mar', 'text/plain'],
+    ['mathml', 'application/mathml+xml'],
+    ['mbd', 'application/mbedlet'],
+    ['mbk', 'application/vnd.mobius.mbk'],
+    ['mbox', 'application/mbox'],
+    ['mc$', 'application/x-magic-cap-package-1.0'],
+    ['mc1', 'application/vnd.medcalcdata'],
+    ['mcd', ['application/mcad', 'application/vnd.mcd', 'application/x-mathcad']],
+    ['mcf', ['image/vasa', 'text/mcf']],
+    ['mcp', 'application/netmc'],
+    ['mcurl', 'text/vnd.curl.mcurl'],
+    ['mdb', 'application/x-msaccess'],
+    ['mdi', 'image/vnd.ms-modi'],
+    ['me', 'application/x-troff-me'],
+    ['meta4', 'application/metalink4+xml'],
+    ['mets', 'application/mets+xml'],
+    ['mfm', 'application/vnd.mfmp'],
+    ['mgp', 'application/vnd.osgeo.mapguide.package'],
+    ['mgz', 'application/vnd.proteus.magazine'],
+    ['mht', 'message/rfc822'],
+    ['mhtml', 'message/rfc822'],
+    ['mid', ['audio/mid', 'audio/midi', 'music/crescendo', 'x-music/x-midi', 'audio/x-midi', 'application/x-midi', 'audio/x-mid']],
+    ['midi', ['audio/midi', 'music/crescendo', 'x-music/x-midi', 'audio/x-midi', 'application/x-midi', 'audio/x-mid']],
+    ['mif', ['application/vnd.mif', 'application/x-mif', 'application/x-frame']],
+    ['mime', ['message/rfc822', 'www/mime']],
+    ['mj2', 'video/mj2'],
+    ['mjf', 'audio/x-vnd.audioexplosion.mjuicemediafile'],
+    ['mjpg', 'video/x-motion-jpeg'],
+    ['mlp', 'application/vnd.dolby.mlp'],
+    ['mm', ['application/base64', 'application/x-meme']],
+    ['mmd', 'application/vnd.chipnuts.karaoke-mmd'],
+    ['mme', 'application/base64'],
+    ['mmf', 'application/vnd.smaf'],
+    ['mmr', 'image/vnd.fujixerox.edmics-mmr'],
+    ['mny', 'application/x-msmoney'],
+    ['mod', ['audio/mod', 'audio/x-mod']],
+    ['mods', 'application/mods+xml'],
+    ['moov', 'video/quicktime'],
+    ['mov', 'video/quicktime'],
+    ['movie', 'video/x-sgi-movie'],
+    ['mp2', ['video/mpeg', 'audio/mpeg', 'video/x-mpeg', 'audio/x-mpeg', 'video/x-mpeq2a']],
+    ['mp3', ['audio/mpeg', 'audio/mpeg3', 'video/mpeg', 'audio/x-mpeg-3', 'video/x-mpeg']],
+    ['mp4', ['video/mp4', 'application/mp4']],
+    ['mp4a', 'audio/mp4'],
+    ['mpa', ['video/mpeg', 'audio/mpeg']],
+    ['mpc', ['application/vnd.mophun.certificate', 'application/x-project']],
+    ['mpe', 'video/mpeg'],
+    ['mpeg', 'video/mpeg'],
+    ['mpg', ['video/mpeg', 'audio/mpeg']],
+    ['mpga', 'audio/mpeg'],
+    ['mpkg', 'application/vnd.apple.installer+xml'],
+    ['mpm', 'application/vnd.blueice.multipass'],
+    ['mpn', 'application/vnd.mophun.application'],
+    ['mpp', 'application/vnd.ms-project'],
+    ['mpt', 'application/x-project'],
+    ['mpv', 'application/x-project'],
+    ['mpv2', 'video/mpeg'],
+    ['mpx', 'application/x-project'],
+    ['mpy', 'application/vnd.ibm.minipay'],
+    ['mqy', 'application/vnd.mobius.mqy'],
+    ['mrc', 'application/marc'],
+    ['mrcx', 'application/marcxml+xml'],
+    ['ms', 'application/x-troff-ms'],
+    ['mscml', 'application/mediaservercontrol+xml'],
+    ['mseq', 'application/vnd.mseq'],
+    ['msf', 'application/vnd.epson.msf'],
+    ['msg', 'application/vnd.ms-outlook'],
+    ['msh', 'model/mesh'],
+    ['msl', 'application/vnd.mobius.msl'],
+    ['msty', 'application/vnd.muvee.style'],
+    ['mts', 'model/vnd.mts'],
+    ['mus', 'application/vnd.musician'],
+    ['musicxml', 'application/vnd.recordare.musicxml+xml'],
+    ['mv', 'video/x-sgi-movie'],
+    ['mvb', 'application/x-msmediaview'],
+    ['mwf', 'application/vnd.mfer'],
+    ['mxf', 'application/mxf'],
+    ['mxl', 'application/vnd.recordare.musicxml'],
+    ['mxml', 'application/xv+xml'],
+    ['mxs', 'application/vnd.triscape.mxs'],
+    ['mxu', 'video/vnd.mpegurl'],
+    ['my', 'audio/make'],
+    ['mzz', 'application/x-vnd.audioexplosion.mzz'],
+    ['n-gage', 'application/vnd.nokia.n-gage.symbian.install'],
+    ['n3', 'text/n3'],
+    ['nap', 'image/naplps'],
+    ['naplps', 'image/naplps'],
+    ['nbp', 'application/vnd.wolfram.player'],
+    ['nc', 'application/x-netcdf'],
+    ['ncm', 'application/vnd.nokia.configuration-message'],
+    ['ncx', 'application/x-dtbncx+xml'],
+    ['ngdat', 'application/vnd.nokia.n-gage.data'],
+    ['nif', 'image/x-niff'],
+    ['niff', 'image/x-niff'],
+    ['nix', 'application/x-mix-transfer'],
+    ['nlu', 'application/vnd.neurolanguage.nlu'],
+    ['nml', 'application/vnd.enliven'],
+    ['nnd', 'application/vnd.noblenet-directory'],
+    ['nns', 'application/vnd.noblenet-sealer'],
+    ['nnw', 'application/vnd.noblenet-web'],
+    ['npx', 'image/vnd.net-fpx'],
+    ['nsc', 'application/x-conference'],
+    ['nsf', 'application/vnd.lotus-notes'],
+    ['nvd', 'application/x-navidoc'],
+    ['nws', 'message/rfc822'],
+    ['o', 'application/octet-stream'],
+    ['oa2', 'application/vnd.fujitsu.oasys2'],
+    ['oa3', 'application/vnd.fujitsu.oasys3'],
+    ['oas', 'application/vnd.fujitsu.oasys'],
+    ['obd', 'application/x-msbinder'],
+    ['oda', 'application/oda'],
+    ['odb', 'application/vnd.oasis.opendocument.database'],
+    ['odc', 'application/vnd.oasis.opendocument.chart'],
+    ['odf', 'application/vnd.oasis.opendocument.formula'],
+    ['odft', 'application/vnd.oasis.opendocument.formula-template'],
+    ['odg', 'application/vnd.oasis.opendocument.graphics'],
+    ['odi', 'application/vnd.oasis.opendocument.image'],
+    ['odm', 'application/vnd.oasis.opendocument.text-master'],
+    ['odp', 'application/vnd.oasis.opendocument.presentation'],
+    ['ods', 'application/vnd.oasis.opendocument.spreadsheet'],
+    ['odt', 'application/vnd.oasis.opendocument.text'],
+    ['oga', 'audio/ogg'],
+    ['ogv', 'video/ogg'],
+    ['ogx', 'application/ogg'],
+    ['omc', 'application/x-omc'],
+    ['omcd', 'application/x-omcdatamaker'],
+    ['omcr', 'application/x-omcregerator'],
+    ['onetoc', 'application/onenote'],
+    ['opf', 'application/oebps-package+xml'],
+    ['org', 'application/vnd.lotus-organizer'],
+    ['osf', 'application/vnd.yamaha.openscoreformat'],
+    ['osfpvg', 'application/vnd.yamaha.openscoreformat.osfpvg+xml'],
+    ['otc', 'application/vnd.oasis.opendocument.chart-template'],
+    ['otf', 'application/x-font-otf'],
+    ['otg', 'application/vnd.oasis.opendocument.graphics-template'],
+    ['oth', 'application/vnd.oasis.opendocument.text-web'],
+    ['oti', 'application/vnd.oasis.opendocument.image-template'],
+    ['otp', 'application/vnd.oasis.opendocument.presentation-template'],
+    ['ots', 'application/vnd.oasis.opendocument.spreadsheet-template'],
+    ['ott', 'application/vnd.oasis.opendocument.text-template'],
+    ['oxt', 'application/vnd.openofficeorg.extension'],
+    ['p', 'text/x-pascal'],
+    ['p10', ['application/pkcs10', 'application/x-pkcs10']],
+    ['p12', ['application/pkcs-12', 'application/x-pkcs12']],
+    ['p7a', 'application/x-pkcs7-signature'],
+    ['p7b', 'application/x-pkcs7-certificates'],
+    ['p7c', ['application/pkcs7-mime', 'application/x-pkcs7-mime']],
+    ['p7m', ['application/pkcs7-mime', 'application/x-pkcs7-mime']],
+    ['p7r', 'application/x-pkcs7-certreqresp'],
+    ['p7s', ['application/pkcs7-signature', 'application/x-pkcs7-signature']],
+    ['p8', 'application/pkcs8'],
+    ['par', 'text/plain-bas'],
+    ['part', 'application/pro_eng'],
+    ['pas', 'text/pascal'],
+    ['paw', 'application/vnd.pawaafile'],
+    ['pbd', 'application/vnd.powerbuilder6'],
+    ['pbm', 'image/x-portable-bitmap'],
+    ['pcf', 'application/x-font-pcf'],
+    ['pcl', ['application/vnd.hp-pcl', 'application/x-pcl']],
+    ['pclxl', 'application/vnd.hp-pclxl'],
+    ['pct', 'image/x-pict'],
+    ['pcurl', 'application/vnd.curl.pcurl'],
+    ['pcx', 'image/x-pcx'],
+    ['pdb', ['application/vnd.palm', 'chemical/x-pdb']],
+    ['pdf', 'application/pdf'],
+    ['pfa', 'application/x-font-type1'],
+    ['pfr', 'application/font-tdpfr'],
+    ['pfunk', ['audio/make', 'audio/make.my.funk']],
+    ['pfx', 'application/x-pkcs12'],
+    ['pgm', ['image/x-portable-graymap', 'image/x-portable-greymap']],
+    ['pgn', 'application/x-chess-pgn'],
+    ['pgp', 'application/pgp-signature'],
+    ['pic', ['image/pict', 'image/x-pict']],
+    ['pict', 'image/pict'],
+    ['pkg', 'application/x-newton-compatible-pkg'],
+    ['pki', 'application/pkixcmp'],
+    ['pkipath', 'application/pkix-pkipath'],
+    ['pko', ['application/ynd.ms-pkipko', 'application/vnd.ms-pki.pko']],
+    ['pl', ['text/plain', 'text/x-script.perl']],
+    ['plb', 'application/vnd.3gpp.pic-bw-large'],
+    ['plc', 'application/vnd.mobius.plc'],
+    ['plf', 'application/vnd.pocketlearn'],
+    ['pls', 'application/pls+xml'],
+    ['plx', 'application/x-pixclscript'],
+    ['pm', ['text/x-script.perl-module', 'image/x-xpixmap']],
+    ['pm4', 'application/x-pagemaker'],
+    ['pm5', 'application/x-pagemaker'],
+    ['pma', 'application/x-perfmon'],
+    ['pmc', 'application/x-perfmon'],
+    ['pml', ['application/vnd.ctc-posml', 'application/x-perfmon']],
+    ['pmr', 'application/x-perfmon'],
+    ['pmw', 'application/x-perfmon'],
+    ['png', 'image/png'],
+    ['pnm', ['application/x-portable-anymap', 'image/x-portable-anymap']],
+    ['portpkg', 'application/vnd.macports.portpkg'],
+    ['pot', ['application/vnd.ms-powerpoint', 'application/mspowerpoint']],
+    ['potm', 'application/vnd.ms-powerpoint.template.macroenabled.12'],
+    ['potx', 'application/vnd.openxmlformats-officedocument.presentationml.template'],
+    ['pov', 'model/x-pov'],
+    ['ppa', 'application/vnd.ms-powerpoint'],
+    ['ppam', 'application/vnd.ms-powerpoint.addin.macroenabled.12'],
+    ['ppd', 'application/vnd.cups-ppd'],
+    ['ppm', 'image/x-portable-pixmap'],
+    ['pps', ['application/vnd.ms-powerpoint', 'application/mspowerpoint']],
+    ['ppsm', 'application/vnd.ms-powerpoint.slideshow.macroenabled.12'],
+    ['ppsx', 'application/vnd.openxmlformats-officedocument.presentationml.slideshow'],
+    ['ppt', ['application/vnd.ms-powerpoint', 'application/mspowerpoint', 'application/powerpoint', 'application/x-mspowerpoint']],
+    ['pptm', 'application/vnd.ms-powerpoint.presentation.macroenabled.12'],
+    ['pptx', 'application/vnd.openxmlformats-officedocument.presentationml.presentation'],
+    ['ppz', 'application/mspowerpoint'],
+    ['prc', 'application/x-mobipocket-ebook'],
+    ['pre', ['application/vnd.lotus-freelance', 'application/x-freelance']],
+    ['prf', 'application/pics-rules'],
+    ['prt', 'application/pro_eng'],
+    ['ps', 'application/postscript'],
+    ['psb', 'application/vnd.3gpp.pic-bw-small'],
+    ['psd', ['application/octet-stream', 'image/vnd.adobe.photoshop']],
+    ['psf', 'application/x-font-linux-psf'],
+    ['pskcxml', 'application/pskc+xml'],
+    ['ptid', 'application/vnd.pvi.ptid1'],
+    ['pub', 'application/x-mspublisher'],
+    ['pvb', 'application/vnd.3gpp.pic-bw-var'],
+    ['pvu', 'paleovu/x-pv'],
+    ['pwn', 'application/vnd.3m.post-it-notes'],
+    ['pwz', 'application/vnd.ms-powerpoint'],
+    ['py', 'text/x-script.phyton'],
+    ['pya', 'audio/vnd.ms-playready.media.pya'],
+    ['pyc', 'application/x-bytecode.python'],
+    ['pyv', 'video/vnd.ms-playready.media.pyv'],
+    ['qam', 'application/vnd.epson.quickanime'],
+    ['qbo', 'application/vnd.intu.qbo'],
+    ['qcp', 'audio/vnd.qcelp'],
+    ['qd3', 'x-world/x-3dmf'],
+    ['qd3d', 'x-world/x-3dmf'],
+    ['qfx', 'application/vnd.intu.qfx'],
+    ['qif', 'image/x-quicktime'],
+    ['qps', 'application/vnd.publishare-delta-tree'],
+    ['qt', 'video/quicktime'],
+    ['qtc', 'video/x-qtc'],
+    ['qti', 'image/x-quicktime'],
+    ['qtif', 'image/x-quicktime'],
+    ['qxd', 'application/vnd.quark.quarkxpress'],
+    ['ra', ['audio/x-realaudio', 'audio/x-pn-realaudio', 'audio/x-pn-realaudio-plugin']],
+    ['ram', 'audio/x-pn-realaudio'],
+    ['rar', 'application/x-rar-compressed'],
+    ['ras', ['image/cmu-raster', 'application/x-cmu-raster', 'image/x-cmu-raster']],
+    ['rast', 'image/cmu-raster'],
+    ['rcprofile', 'application/vnd.ipunplugged.rcprofile'],
+    ['rdf', 'application/rdf+xml'],
+    ['rdz', 'application/vnd.data-vision.rdz'],
+    ['rep', 'application/vnd.businessobjects'],
+    ['res', 'application/x-dtbresource+xml'],
+    ['rexx', 'text/x-script.rexx'],
+    ['rf', 'image/vnd.rn-realflash'],
+    ['rgb', 'image/x-rgb'],
+    ['rif', 'application/reginfo+xml'],
+    ['rip', 'audio/vnd.rip'],
+    ['rl', 'application/resource-lists+xml'],
+    ['rlc', 'image/vnd.fujixerox.edmics-rlc'],
+    ['rld', 'application/resource-lists-diff+xml'],
+    ['rm', ['application/vnd.rn-realmedia', 'audio/x-pn-realaudio']],
+    ['rmi', 'audio/mid'],
+    ['rmm', 'audio/x-pn-realaudio'],
+    ['rmp', ['audio/x-pn-realaudio-plugin', 'audio/x-pn-realaudio']],
+    ['rms', 'application/vnd.jcp.javame.midlet-rms'],
+    ['rnc', 'application/relax-ng-compact-syntax'],
+    ['rng', ['application/ringing-tones', 'application/vnd.nokia.ringing-tone']],
+    ['rnx', 'application/vnd.rn-realplayer'],
+    ['roff', 'application/x-troff'],
+    ['rp', 'image/vnd.rn-realpix'],
+    ['rp9', 'application/vnd.cloanto.rp9'],
+    ['rpm', 'audio/x-pn-realaudio-plugin'],
+    ['rpss', 'application/vnd.nokia.radio-presets'],
+    ['rpst', 'application/vnd.nokia.radio-preset'],
+    ['rq', 'application/sparql-query'],
+    ['rs', 'application/rls-services+xml'],
+    ['rsd', 'application/rsd+xml'],
+    ['rt', ['text/richtext', 'text/vnd.rn-realtext']],
+    ['rtf', ['application/rtf', 'text/richtext', 'application/x-rtf']],
+    ['rtx', ['text/richtext', 'application/rtf']],
+    ['rv', 'video/vnd.rn-realvideo'],
+    ['s', 'text/x-asm'],
+    ['s3m', 'audio/s3m'],
+    ['saf', 'application/vnd.yamaha.smaf-audio'],
+    ['saveme', 'application/octet-stream'],
+    ['sbk', 'application/x-tbook'],
+    ['sbml', 'application/sbml+xml'],
+    ['sc', 'application/vnd.ibm.secure-container'],
+    ['scd', 'application/x-msschedule'],
+    ['scm', ['application/vnd.lotus-screencam', 'video/x-scm', 'text/x-script.guile', 'application/x-lotusscreencam', 'text/x-script.scheme']],
+    ['scq', 'application/scvp-cv-request'],
+    ['scs', 'application/scvp-cv-response'],
+    ['sct', 'text/scriptlet'],
+    ['scurl', 'text/vnd.curl.scurl'],
+    ['sda', 'application/vnd.stardivision.draw'],
+    ['sdc', 'application/vnd.stardivision.calc'],
+    ['sdd', 'application/vnd.stardivision.impress'],
+    ['sdkm', 'application/vnd.solent.sdkm+xml'],
+    ['sdml', 'text/plain'],
+    ['sdp', ['application/sdp', 'application/x-sdp']],
+    ['sdr', 'application/sounder'],
+    ['sdw', 'application/vnd.stardivision.writer'],
+    ['sea', ['application/sea', 'application/x-sea']],
+    ['see', 'application/vnd.seemail'],
+    ['seed', 'application/vnd.fdsn.seed'],
+    ['sema', 'application/vnd.sema'],
+    ['semd', 'application/vnd.semd'],
+    ['semf', 'application/vnd.semf'],
+    ['ser', 'application/java-serialized-object'],
+    ['set', 'application/set'],
+    ['setpay', 'application/set-payment-initiation'],
+    ['setreg', 'application/set-registration-initiation'],
+    ['sfd-hdstx', 'application/vnd.hydrostatix.sof-data'],
+    ['sfs', 'application/vnd.spotfire.sfs'],
+    ['sgl', 'application/vnd.stardivision.writer-global'],
+    ['sgm', ['text/sgml', 'text/x-sgml']],
+    ['sgml', ['text/sgml', 'text/x-sgml']],
+    ['sh', ['application/x-shar', 'application/x-bsh', 'application/x-sh', 'text/x-script.sh']],
+    ['shar', ['application/x-bsh', 'application/x-shar']],
+    ['shf', 'application/shf+xml'],
+    ['shtml', ['text/html', 'text/x-server-parsed-html']],
+    ['sid', 'audio/x-psid'],
+    ['sis', 'application/vnd.symbian.install'],
+    ['sit', ['application/x-stuffit', 'application/x-sit']],
+    ['sitx', 'application/x-stuffitx'],
+    ['skd', 'application/x-koan'],
+    ['skm', 'application/x-koan'],
+    ['skp', ['application/vnd.koan', 'application/x-koan']],
+    ['skt', 'application/x-koan'],
+    ['sl', 'application/x-seelogo'],
+    ['sldm', 'application/vnd.ms-powerpoint.slide.macroenabled.12'],
+    ['sldx', 'application/vnd.openxmlformats-officedocument.presentationml.slide'],
+    ['slt', 'application/vnd.epson.salt'],
+    ['sm', 'application/vnd.stepmania.stepchart'],
+    ['smf', 'application/vnd.stardivision.math'],
+    ['smi', ['application/smil', 'application/smil+xml']],
+    ['smil', 'application/smil'],
+    ['snd', ['audio/basic', 'audio/x-adpcm']],
+    ['snf', 'application/x-font-snf'],
+    ['sol', 'application/solids'],
+    ['spc', ['text/x-speech', 'application/x-pkcs7-certificates']],
+    ['spf', 'application/vnd.yamaha.smaf-phrase'],
+    ['spl', ['application/futuresplash', 'application/x-futuresplash']],
+    ['spot', 'text/vnd.in3d.spot'],
+    ['spp', 'application/scvp-vp-response'],
+    ['spq', 'application/scvp-vp-request'],
+    ['spr', 'application/x-sprite'],
+    ['sprite', 'application/x-sprite'],
+    ['src', 'application/x-wais-source'],
+    ['sru', 'application/sru+xml'],
+    ['srx', 'application/sparql-results+xml'],
+    ['sse', 'application/vnd.kodak-descriptor'],
+    ['ssf', 'application/vnd.epson.ssf'],
+    ['ssi', 'text/x-server-parsed-html'],
+    ['ssm', 'application/streamingmedia'],
+    ['ssml', 'application/ssml+xml'],
+    ['sst', ['application/vnd.ms-pkicertstore', 'application/vnd.ms-pki.certstore']],
+    ['st', 'application/vnd.sailingtracker.track'],
+    ['stc', 'application/vnd.sun.xml.calc.template'],
+    ['std', 'application/vnd.sun.xml.draw.template'],
+    ['step', 'application/step'],
+    ['stf', 'application/vnd.wt.stf'],
+    ['sti', 'application/vnd.sun.xml.impress.template'],
+    ['stk', 'application/hyperstudio'],
+    ['stl', ['application/vnd.ms-pkistl', 'application/sla', 'application/vnd.ms-pki.stl', 'application/x-navistyle']],
+    ['stm', 'text/html'],
+    ['stp', 'application/step'],
+    ['str', 'application/vnd.pg.format'],
+    ['stw', 'application/vnd.sun.xml.writer.template'],
+    ['sub', 'image/vnd.dvb.subtitle'],
+    ['sus', 'application/vnd.sus-calendar'],
+    ['sv4cpio', 'application/x-sv4cpio'],
+    ['sv4crc', 'application/x-sv4crc'],
+    ['svc', 'application/vnd.dvb.service'],
+    ['svd', 'application/vnd.svd'],
+    ['svf', ['image/vnd.dwg', 'image/x-dwg']],
+    ['svg', 'image/svg+xml'],
+    ['svr', ['x-world/x-svr', 'application/x-world']],
+    ['swf', 'application/x-shockwave-flash'],
+    ['swi', 'application/vnd.aristanetworks.swi'],
+    ['sxc', 'application/vnd.sun.xml.calc'],
+    ['sxd', 'application/vnd.sun.xml.draw'],
+    ['sxg', 'application/vnd.sun.xml.writer.global'],
+    ['sxi', 'application/vnd.sun.xml.impress'],
+    ['sxm', 'application/vnd.sun.xml.math'],
+    ['sxw', 'application/vnd.sun.xml.writer'],
+    ['t', ['text/troff', 'application/x-troff']],
+    ['talk', 'text/x-speech'],
+    ['tao', 'application/vnd.tao.intent-module-archive'],
+    ['tar', 'application/x-tar'],
+    ['tbk', ['application/toolbook', 'application/x-tbook']],
+    ['tcap', 'application/vnd.3gpp2.tcap'],
+    ['tcl', ['text/x-script.tcl', 'application/x-tcl']],
+    ['tcsh', 'text/x-script.tcsh'],
+    ['teacher', 'application/vnd.smart.teacher'],
+    ['tei', 'application/tei+xml'],
+    ['tex', 'application/x-tex'],
+    ['texi', 'application/x-texinfo'],
+    ['texinfo', 'application/x-texinfo'],
+    ['text', ['application/plain', 'text/plain']],
+    ['tfi', 'application/thraud+xml'],
+    ['tfm', 'application/x-tex-tfm'],
+    ['tgz', ['application/gnutar', 'application/x-compressed']],
+    ['thmx', 'application/vnd.ms-officetheme'],
+    ['tif', ['image/tiff', 'image/x-tiff']],
+    ['tiff', ['image/tiff', 'image/x-tiff']],
+    ['tmo', 'application/vnd.tmobile-livetv'],
+    ['torrent', 'application/x-bittorrent'],
+    ['tpl', 'application/vnd.groove-tool-template'],
+    ['tpt', 'application/vnd.trid.tpt'],
+    ['tr', 'application/x-troff'],
+    ['tra', 'application/vnd.trueapp'],
+    ['trm', 'application/x-msterminal'],
+    ['tsd', 'application/timestamped-data'],
+    ['tsi', 'audio/tsp-audio'],
+    ['tsp', ['application/dsptype', 'audio/tsplayer']],
+    ['tsv', 'text/tab-separated-values'],
+    ['ttf', 'application/x-font-ttf'],
+    ['ttl', 'text/turtle'],
+    ['turbot', 'image/florian'],
+    ['twd', 'application/vnd.simtech-mindmapper'],
+    ['txd', 'application/vnd.genomatix.tuxedo'],
+    ['txf', 'application/vnd.mobius.txf'],
+    ['txt', 'text/plain'],
+    ['ufd', 'application/vnd.ufdl'],
+    ['uil', 'text/x-uil'],
+    ['uls', 'text/iuls'],
+    ['umj', 'application/vnd.umajin'],
+    ['uni', 'text/uri-list'],
+    ['unis', 'text/uri-list'],
+    ['unityweb', 'application/vnd.unity'],
+    ['unv', 'application/i-deas'],
+    ['uoml', 'application/vnd.uoml+xml'],
+    ['uri', 'text/uri-list'],
+    ['uris', 'text/uri-list'],
+    ['ustar', ['application/x-ustar', 'multipart/x-ustar']],
+    ['utz', 'application/vnd.uiq.theme'],
+    ['uu', ['application/octet-stream', 'text/x-uuencode']],
+    ['uue', 'text/x-uuencode'],
+    ['uva', 'audio/vnd.dece.audio'],
+    ['uvh', 'video/vnd.dece.hd'],
+    ['uvi', 'image/vnd.dece.graphic'],
+    ['uvm', 'video/vnd.dece.mobile'],
+    ['uvp', 'video/vnd.dece.pd'],
+    ['uvs', 'video/vnd.dece.sd'],
+    ['uvu', 'video/vnd.uvvu.mp4'],
+    ['uvv', 'video/vnd.dece.video'],
+    ['vcd', 'application/x-cdlink'],
+    ['vcf', 'text/x-vcard'],
+    ['vcg', 'application/vnd.groove-vcard'],
+    ['vcs', 'text/x-vcalendar'],
+    ['vcx', 'application/vnd.vcx'],
+    ['vda', 'application/vda'],
+    ['vdo', 'video/vdo'],
+    ['vew', 'application/groupwise'],
+    ['vis', 'application/vnd.visionary'],
+    ['viv', ['video/vivo', 'video/vnd.vivo']],
+    ['vivo', ['video/vivo', 'video/vnd.vivo']],
+    ['vmd', 'application/vocaltec-media-desc'],
+    ['vmf', 'application/vocaltec-media-file'],
+    ['voc', ['audio/voc', 'audio/x-voc']],
+    ['vos', 'video/vosaic'],
+    ['vox', 'audio/voxware'],
+    ['vqe', 'audio/x-twinvq-plugin'],
+    ['vqf', 'audio/x-twinvq'],
+    ['vql', 'audio/x-twinvq-plugin'],
+    ['vrml', ['model/vrml', 'x-world/x-vrml', 'application/x-vrml']],
+    ['vrt', 'x-world/x-vrt'],
+    ['vsd', ['application/vnd.visio', 'application/x-visio']],
+    ['vsf', 'application/vnd.vsf'],
+    ['vst', 'application/x-visio'],
+    ['vsw', 'application/x-visio'],
+    ['vtu', 'model/vnd.vtu'],
+    ['vxml', 'application/voicexml+xml'],
+    ['w60', 'application/wordperfect6.0'],
+    ['w61', 'application/wordperfect6.1'],
+    ['w6w', 'application/msword'],
+    ['wad', 'application/x-doom'],
+    ['wav', ['audio/wav', 'audio/x-wav']],
+    ['wax', 'audio/x-ms-wax'],
+    ['wb1', 'application/x-qpro'],
+    ['wbmp', 'image/vnd.wap.wbmp'],
+    ['wbs', 'application/vnd.criticaltools.wbs+xml'],
+    ['wbxml', 'application/vnd.wap.wbxml'],
+    ['wcm', 'application/vnd.ms-works'],
+    ['wdb', 'application/vnd.ms-works'],
+    ['web', 'application/vnd.xara'],
+    ['weba', 'audio/webm'],
+    ['webm', 'video/webm'],
+    ['webp', 'image/webp'],
+    ['wg', 'application/vnd.pmi.widget'],
+    ['wgt', 'application/widget'],
+    ['wiz', 'application/msword'],
+    ['wk1', 'application/x-123'],
+    ['wks', 'application/vnd.ms-works'],
+    ['wm', 'video/x-ms-wm'],
+    ['wma', 'audio/x-ms-wma'],
+    ['wmd', 'application/x-ms-wmd'],
+    ['wmf', ['windows/metafile', 'application/x-msmetafile']],
+    ['wml', 'text/vnd.wap.wml'],
+    ['wmlc', 'application/vnd.wap.wmlc'],
+    ['wmls', 'text/vnd.wap.wmlscript'],
+    ['wmlsc', 'application/vnd.wap.wmlscriptc'],
+    ['wmv', 'video/x-ms-wmv'],
+    ['wmx', 'video/x-ms-wmx'],
+    ['wmz', 'application/x-ms-wmz'],
+    ['woff', 'application/x-font-woff'],
+    ['word', 'application/msword'],
+    ['wp', 'application/wordperfect'],
+    ['wp5', ['application/wordperfect', 'application/wordperfect6.0']],
+    ['wp6', 'application/wordperfect'],
+    ['wpd', ['application/wordperfect', 'application/vnd.wordperfect', 'application/x-wpwin']],
+    ['wpl', 'application/vnd.ms-wpl'],
+    ['wps', 'application/vnd.ms-works'],
+    ['wq1', 'application/x-lotus'],
+    ['wqd', 'application/vnd.wqd'],
+    ['wri', ['application/mswrite', 'application/x-wri', 'application/x-mswrite']],
+    ['wrl', ['model/vrml', 'x-world/x-vrml', 'application/x-world']],
+    ['wrz', ['model/vrml', 'x-world/x-vrml']],
+    ['wsc', 'text/scriplet'],
+    ['wsdl', 'application/wsdl+xml'],
+    ['wspolicy', 'application/wspolicy+xml'],
+    ['wsrc', 'application/x-wais-source'],
+    ['wtb', 'application/vnd.webturbo'],
+    ['wtk', 'application/x-wintalk'],
+    ['wvx', 'video/x-ms-wvx'],
+    ['x-png', 'image/png'],
+    ['x3d', 'application/vnd.hzn-3d-crossword'],
+    ['xaf', 'x-world/x-vrml'],
+    ['xap', 'application/x-silverlight-app'],
+    ['xar', 'application/vnd.xara'],
+    ['xbap', 'application/x-ms-xbap'],
+    ['xbd', 'application/vnd.fujixerox.docuworks.binder'],
+    ['xbm', ['image/xbm', 'image/x-xbm', 'image/x-xbitmap']],
+    ['xdf', 'application/xcap-diff+xml'],
+    ['xdm', 'application/vnd.syncml.dm+xml'],
+    ['xdp', 'application/vnd.adobe.xdp+xml'],
+    ['xdr', 'video/x-amt-demorun'],
+    ['xdssc', 'application/dssc+xml'],
+    ['xdw', 'application/vnd.fujixerox.docuworks'],
+    ['xenc', 'application/xenc+xml'],
+    ['xer', 'application/patch-ops-error+xml'],
+    ['xfdf', 'application/vnd.adobe.xfdf'],
+    ['xfdl', 'application/vnd.xfdl'],
+    ['xgz', 'xgl/drawing'],
+    ['xhtml', 'application/xhtml+xml'],
+    ['xif', 'image/vnd.xiff'],
+    ['xl', 'application/excel'],
+    ['xla', ['application/vnd.ms-excel', 'application/excel', 'application/x-msexcel', 'application/x-excel']],
+    ['xlam', 'application/vnd.ms-excel.addin.macroenabled.12'],
+    ['xlb', ['application/excel', 'application/vnd.ms-excel', 'application/x-excel']],
+    ['xlc', ['application/vnd.ms-excel', 'application/excel', 'application/x-excel']],
+    ['xld', ['application/excel', 'application/x-excel']],
+    ['xlk', ['application/excel', 'application/x-excel']],
+    ['xll', ['application/excel', 'application/vnd.ms-excel', 'application/x-excel']],
+    ['xlm', ['application/vnd.ms-excel', 'application/excel', 'application/x-excel']],
+    ['xls', ['application/vnd.ms-excel', 'application/excel', 'application/x-msexcel', 'application/x-excel']],
+    ['xlsb', 'application/vnd.ms-excel.sheet.binary.macroenabled.12'],
+    ['xlsm', 'application/vnd.ms-excel.sheet.macroenabled.12'],
+    ['xlsx', 'application/vnd.openxmlformats-officedocument.spreadsheetml.sheet'],
+    ['xlt', ['application/vnd.ms-excel', 'application/excel', 'application/x-excel']],
+    ['xltm', 'application/vnd.ms-excel.template.macroenabled.12'],
+    ['xltx', 'application/vnd.openxmlformats-officedocument.spreadsheetml.template'],
+    ['xlv', ['application/excel', 'application/x-excel']],
+    ['xlw', ['application/vnd.ms-excel', 'application/excel', 'application/x-msexcel', 'application/x-excel']],
+    ['xm', 'audio/xm'],
+    ['xml', ['application/xml', 'text/xml', 'application/atom+xml', 'application/rss+xml']],
+    ['xmz', 'xgl/movie'],
+    ['xo', 'application/vnd.olpc-sugar'],
+    ['xof', 'x-world/x-vrml'],
+    ['xop', 'application/xop+xml'],
+    ['xpi', 'application/x-xpinstall'],
+    ['xpix', 'application/x-vnd.ls-xpix'],
+    ['xpm', ['image/xpm', 'image/x-xpixmap']],
+    ['xpr', 'application/vnd.is-xpr'],
+    ['xps', 'application/vnd.ms-xpsdocument'],
+    ['xpw', 'application/vnd.intercon.formnet'],
+    ['xslt', 'application/xslt+xml'],
+    ['xsm', 'application/vnd.syncml+xml'],
+    ['xspf', 'application/xspf+xml'],
+    ['xsr', 'video/x-amt-showrun'],
+    ['xul', 'application/vnd.mozilla.xul+xml'],
+    ['xwd', ['image/x-xwd', 'image/x-xwindowdump']],
+    ['xyz', ['chemical/x-xyz', 'chemical/x-pdb']],
+    ['yang', 'application/yang'],
+    ['yin', 'application/yin+xml'],
+    ['z', ['application/x-compressed', 'application/x-compress']],
+    ['zaz', 'application/vnd.zzazz.deck+xml'],
+    ['zip', ['application/zip', 'multipart/x-zip', 'application/x-zip-compressed', 'application/x-compressed']],
+    ['zir', 'application/vnd.zul'],
+    ['zmm', 'application/vnd.handheld-entertainment+xml'],
+    ['zoo', 'application/octet-stream'],
+    ['zsh', 'text/x-script.zsh']
+]);
+
+module.exports = {
+    detectMimeType(filename) {
+        if (!filename) {
+            return defaultMimeType;
+        }
+
+        let parsed = path.parse(filename);
+        let extension = (parsed.ext.substr(1) || parsed.name || '').split('?').shift().trim().toLowerCase();
+        let value = defaultMimeType;
+
+        if (extensions.has(extension)) {
+            value = extensions.get(extension);
+        }
+
+        if (Array.isArray(value)) {
+            return value[0];
+        }
+        return value;
+    },
+
+    detectExtension(mimeType) {
+        if (!mimeType) {
+            return defaultExtension;
+        }
+        let parts = (mimeType || '').toLowerCase().trim().split('/');
+        let rootType = parts.shift().trim();
+        let subType = parts.join('/').trim();
+
+        if (mimeTypes.has(rootType + '/' + subType)) {
+            let value = mimeTypes.get(rootType + '/' + subType);
+            if (Array.isArray(value)) {
+                return value[0];
+            }
+            return value;
+        }
+
+        switch (rootType) {
+            case 'text':
+                return 'txt';
+            default:
+                return 'bin';
+        }
+    }
+};
diff --git a/backend/node_modules/nodemailer/lib/mime-node/index.js b/backend/node_modules/nodemailer/lib/mime-node/index.js
new file mode 100644
index 0000000..b92fd7a
--- /dev/null
+++ b/backend/node_modules/nodemailer/lib/mime-node/index.js
@@ -0,0 +1,1314 @@
+/* eslint no-undefined: 0, prefer-spread: 0, no-control-regex: 0 */
+
+'use strict';
+
+const crypto = require('crypto');
+const fs = require('fs');
+const punycode = require('../punycode');
+const PassThrough = require('stream').PassThrough;
+const shared = require('../shared');
+
+const mimeFuncs = require('../mime-funcs');
+const qp = require('../qp');
+const base64 = require('../base64');
+const addressparser = require('../addressparser');
+const nmfetch = require('../fetch');
+const LastNewline = require('./last-newline');
+
+const LeWindows = require('./le-windows');
+const LeUnix = require('./le-unix');
+
+/**
+ * Creates a new mime tree node. Assumes 'multipart/*' as the content type
+ * if it is a branch, anything else counts as leaf. If rootNode is missing from
+ * the options, assumes this is the root.
+ *
+ * @param {String} contentType Define the content type for the node. Can be left blank for attachments (derived from filename)
+ * @param {Object} [options] optional options
+ * @param {Object} [options.rootNode] root node for this tree
+ * @param {Object} [options.parentNode] immediate parent for this node
+ * @param {Object} [options.filename] filename for an attachment node
+ * @param {String} [options.baseBoundary] shared part of the unique multipart boundary
+ * @param {Boolean} [options.keepBcc] If true, do not exclude Bcc from the generated headers
+ * @param {Function} [options.normalizeHeaderKey] method to normalize header keys for custom caseing
+ * @param {String} [options.textEncoding] either 'Q' (the default) or 'B'
+ */
+class MimeNode {
+    constructor(contentType, options) {
+        this.nodeCounter = 0;
+
+        options = options || {};
+
+        /**
+         * shared part of the unique multipart boundary
+         */
+        this.baseBoundary = options.baseBoundary || crypto.randomBytes(8).toString('hex');
+        this.boundaryPrefix = options.boundaryPrefix || '--_NmP';
+
+        this.disableFileAccess = !!options.disableFileAccess;
+        this.disableUrlAccess = !!options.disableUrlAccess;
+
+        this.normalizeHeaderKey = options.normalizeHeaderKey;
+
+        /**
+         * If date headers is missing and current node is the root, this value is used instead
+         */
+        this.date = new Date();
+
+        /**
+         * Root node for current mime tree
+         */
+        this.rootNode = options.rootNode || this;
+
+        /**
+         * If true include Bcc in generated headers (if available)
+         */
+        this.keepBcc = !!options.keepBcc;
+
+        /**
+         * If filename is specified but contentType is not (probably an attachment)
+         * detect the content type from filename extension
+         */
+        if (options.filename) {
+            /**
+             * Filename for this node. Useful with attachments
+             */
+            this.filename = options.filename;
+            if (!contentType) {
+                contentType = mimeFuncs.detectMimeType(this.filename.split('.').pop());
+            }
+        }
+
+        /**
+         * Indicates which encoding should be used for header strings: "Q" or "B"
+         */
+        this.textEncoding = (options.textEncoding || '').toString().trim().charAt(0).toUpperCase();
+
+        /**
+         * Immediate parent for this node (or undefined if not set)
+         */
+        this.parentNode = options.parentNode;
+
+        /**
+         * Hostname for default message-id values
+         */
+        this.hostname = options.hostname;
+
+        /**
+         * If set to 'win' then uses \r\n, if 'linux' then \n. If not set (or `raw` is used) then newlines are kept as is.
+         */
+        this.newline = options.newline;
+
+        /**
+         * An array for possible child nodes
+         */
+        this.childNodes = [];
+
+        /**
+         * Used for generating unique boundaries (prepended to the shared base)
+         */
+        this._nodeId = ++this.rootNode.nodeCounter;
+
+        /**
+         * A list of header values for this node in the form of [{key:'', value:''}]
+         */
+        this._headers = [];
+
+        /**
+         * True if the content only uses ASCII printable characters
+         * @type {Boolean}
+         */
+        this._isPlainText = false;
+
+        /**
+         * True if the content is plain text but has longer lines than allowed
+         * @type {Boolean}
+         */
+        this._hasLongLines = false;
+
+        /**
+         * If set, use instead this value for envelopes instead of generating one
+         * @type {Boolean}
+         */
+        this._envelope = false;
+
+        /**
+         * If set then use this value as the stream content instead of building it
+         * @type {String|Buffer|Stream}
+         */
+        this._raw = false;
+
+        /**
+         * Additional transform streams that the message will be piped before
+         * exposing by createReadStream
+         * @type {Array}
+         */
+        this._transforms = [];
+
+        /**
+         * Additional process functions that the message will be piped through before
+         * exposing by createReadStream. These functions are run after transforms
+         * @type {Array}
+         */
+        this._processFuncs = [];
+
+        /**
+         * If content type is set (or derived from the filename) add it to headers
+         */
+        if (contentType) {
+            this.setHeader('Content-Type', contentType);
+        }
+    }
+
+    /////// PUBLIC METHODS
+
+    /**
+     * Creates and appends a child node.Arguments provided are passed to MimeNode constructor
+     *
+     * @param {String} [contentType] Optional content type
+     * @param {Object} [options] Optional options object
+     * @return {Object} Created node object
+     */
+    createChild(contentType, options) {
+        if (!options && typeof contentType === 'object') {
+            options = contentType;
+            contentType = undefined;
+        }
+        let node = new MimeNode(contentType, options);
+        this.appendChild(node);
+        return node;
+    }
+
+    /**
+     * Appends an existing node to the mime tree. Removes the node from an existing
+     * tree if needed
+     *
+     * @param {Object} childNode node to be appended
+     * @return {Object} Appended node object
+     */
+    appendChild(childNode) {
+        if (childNode.rootNode !== this.rootNode) {
+            childNode.rootNode = this.rootNode;
+            childNode._nodeId = ++this.rootNode.nodeCounter;
+        }
+
+        childNode.parentNode = this;
+
+        this.childNodes.push(childNode);
+        return childNode;
+    }
+
+    /**
+     * Replaces current node with another node
+     *
+     * @param {Object} node Replacement node
+     * @return {Object} Replacement node
+     */
+    replace(node) {
+        if (node === this) {
+            return this;
+        }
+
+        this.parentNode.childNodes.forEach((childNode, i) => {
+            if (childNode === this) {
+                node.rootNode = this.rootNode;
+                node.parentNode = this.parentNode;
+                node._nodeId = this._nodeId;
+
+                this.rootNode = this;
+                this.parentNode = undefined;
+
+                node.parentNode.childNodes[i] = node;
+            }
+        });
+
+        return node;
+    }
+
+    /**
+     * Removes current node from the mime tree
+     *
+     * @return {Object} removed node
+     */
+    remove() {
+        if (!this.parentNode) {
+            return this;
+        }
+
+        for (let i = this.parentNode.childNodes.length - 1; i >= 0; i--) {
+            if (this.parentNode.childNodes[i] === this) {
+                this.parentNode.childNodes.splice(i, 1);
+                this.parentNode = undefined;
+                this.rootNode = this;
+                return this;
+            }
+        }
+    }
+
+    /**
+     * Sets a header value. If the value for selected key exists, it is overwritten.
+     * You can set multiple values as well by using [{key:'', value:''}] or
+     * {key: 'value'} as the first argument.
+     *
+     * @param {String|Array|Object} key Header key or a list of key value pairs
+     * @param {String} value Header value
+     * @return {Object} current node
+     */
+    setHeader(key, value) {
+        let added = false,
+            headerValue;
+
+        // Allow setting multiple headers at once
+        if (!value && key && typeof key === 'object') {
+            // allow {key:'content-type', value: 'text/plain'}
+            if (key.key && 'value' in key) {
+                this.setHeader(key.key, key.value);
+            } else if (Array.isArray(key)) {
+                // allow [{key:'content-type', value: 'text/plain'}]
+                key.forEach(i => {
+                    this.setHeader(i.key, i.value);
+                });
+            } else {
+                // allow {'content-type': 'text/plain'}
+                Object.keys(key).forEach(i => {
+                    this.setHeader(i, key[i]);
+                });
+            }
+            return this;
+        }
+
+        key = this._normalizeHeaderKey(key);
+
+        headerValue = {
+            key,
+            value
+        };
+
+        // Check if the value exists and overwrite
+        for (let i = 0, len = this._headers.length; i < len; i++) {
+            if (this._headers[i].key === key) {
+                if (!added) {
+                    // replace the first match
+                    this._headers[i] = headerValue;
+                    added = true;
+                } else {
+                    // remove following matches
+                    this._headers.splice(i, 1);
+                    i--;
+                    len--;
+                }
+            }
+        }
+
+        // match not found, append the value
+        if (!added) {
+            this._headers.push(headerValue);
+        }
+
+        return this;
+    }
+
+    /**
+     * Adds a header value. If the value for selected key exists, the value is appended
+     * as a new field and old one is not touched.
+     * You can set multiple values as well by using [{key:'', value:''}] or
+     * {key: 'value'} as the first argument.
+     *
+     * @param {String|Array|Object} key Header key or a list of key value pairs
+     * @param {String} value Header value
+     * @return {Object} current node
+     */
+    addHeader(key, value) {
+        // Allow setting multiple headers at once
+        if (!value && key && typeof key === 'object') {
+            // allow {key:'content-type', value: 'text/plain'}
+            if (key.key && key.value) {
+                this.addHeader(key.key, key.value);
+            } else if (Array.isArray(key)) {
+                // allow [{key:'content-type', value: 'text/plain'}]
+                key.forEach(i => {
+                    this.addHeader(i.key, i.value);
+                });
+            } else {
+                // allow {'content-type': 'text/plain'}
+                Object.keys(key).forEach(i => {
+                    this.addHeader(i, key[i]);
+                });
+            }
+            return this;
+        } else if (Array.isArray(value)) {
+            value.forEach(val => {
+                this.addHeader(key, val);
+            });
+            return this;
+        }
+
+        this._headers.push({
+            key: this._normalizeHeaderKey(key),
+            value
+        });
+
+        return this;
+    }
+
+    /**
+     * Retrieves the first mathcing value of a selected key
+     *
+     * @param {String} key Key to search for
+     * @retun {String} Value for the key
+     */
+    getHeader(key) {
+        key = this._normalizeHeaderKey(key);
+        for (let i = 0, len = this._headers.length; i < len; i++) {
+            if (this._headers[i].key === key) {
+                return this._headers[i].value;
+            }
+        }
+    }
+
+    /**
+     * Sets body content for current node. If the value is a string, charset is added automatically
+     * to Content-Type (if it is text/*). If the value is a Buffer, you need to specify
+     * the charset yourself
+     *
+     * @param (String|Buffer) content Body content
+     * @return {Object} current node
+     */
+    setContent(content) {
+        this.content = content;
+        if (typeof this.content.pipe === 'function') {
+            // pre-stream handler. might be triggered if a stream is set as content
+            // and 'error' fires before anything is done with this stream
+            this._contentErrorHandler = err => {
+                this.content.removeListener('error', this._contentErrorHandler);
+                this.content = err;
+            };
+            this.content.once('error', this._contentErrorHandler);
+        } else if (typeof this.content === 'string') {
+            this._isPlainText = mimeFuncs.isPlainText(this.content);
+            if (this._isPlainText && mimeFuncs.hasLongerLines(this.content, 76)) {
+                // If there are lines longer than 76 symbols/bytes do not use 7bit
+                this._hasLongLines = true;
+            }
+        }
+        return this;
+    }
+
+    build(callback) {
+        let promise;
+
+        if (!callback) {
+            promise = new Promise((resolve, reject) => {
+                callback = shared.callbackPromise(resolve, reject);
+            });
+        }
+
+        let stream = this.createReadStream();
+        let buf = [];
+        let buflen = 0;
+        let returned = false;
+
+        stream.on('readable', () => {
+            let chunk;
+
+            while ((chunk = stream.read()) !== null) {
+                buf.push(chunk);
+                buflen += chunk.length;
+            }
+        });
+
+        stream.once('error', err => {
+            if (returned) {
+                return;
+            }
+            returned = true;
+
+            return callback(err);
+        });
+
+        stream.once('end', chunk => {
+            if (returned) {
+                return;
+            }
+            returned = true;
+
+            if (chunk && chunk.length) {
+                buf.push(chunk);
+                buflen += chunk.length;
+            }
+            return callback(null, Buffer.concat(buf, buflen));
+        });
+
+        return promise;
+    }
+
+    getTransferEncoding() {
+        let transferEncoding = false;
+        let contentType = (this.getHeader('Content-Type') || '').toString().toLowerCase().trim();
+
+        if (this.content) {
+            transferEncoding = (this.getHeader('Content-Transfer-Encoding') || '').toString().toLowerCase().trim();
+            if (!transferEncoding || !['base64', 'quoted-printable'].includes(transferEncoding)) {
+                if (/^text\//i.test(contentType)) {
+                    // If there are no special symbols, no need to modify the text
+                    if (this._isPlainText && !this._hasLongLines) {
+                        transferEncoding = '7bit';
+                    } else if (typeof this.content === 'string' || this.content instanceof Buffer) {
+                        // detect preferred encoding for string value
+                        transferEncoding = this._getTextEncoding(this.content) === 'Q' ? 'quoted-printable' : 'base64';
+                    } else {
+                        // we can not check content for a stream, so either use preferred encoding or fallback to QP
+                        transferEncoding = this.textEncoding === 'B' ? 'base64' : 'quoted-printable';
+                    }
+                } else if (!/^(multipart|message)\//i.test(contentType)) {
+                    transferEncoding = transferEncoding || 'base64';
+                }
+            }
+        }
+        return transferEncoding;
+    }
+
+    /**
+     * Builds the header block for the mime node. Append \r\n\r\n before writing the content
+     *
+     * @returns {String} Headers
+     */
+    buildHeaders() {
+        let transferEncoding = this.getTransferEncoding();
+        let headers = [];
+
+        if (transferEncoding) {
+            this.setHeader('Content-Transfer-Encoding', transferEncoding);
+        }
+
+        if (this.filename && !this.getHeader('Content-Disposition')) {
+            this.setHeader('Content-Disposition', 'attachment');
+        }
+
+        // Ensure mandatory header fields
+        if (this.rootNode === this) {
+            if (!this.getHeader('Date')) {
+                this.setHeader('Date', this.date.toUTCString().replace(/GMT/, '+0000'));
+            }
+
+            // ensure that Message-Id is present
+            this.messageId();
+
+            if (!this.getHeader('MIME-Version')) {
+                this.setHeader('MIME-Version', '1.0');
+            }
+
+            // Ensure that Content-Type is the last header for the root node
+            for (let i = this._headers.length - 2; i >= 0; i--) {
+                let header = this._headers[i];
+                if (header.key === 'Content-Type') {
+                    this._headers.splice(i, 1);
+                    this._headers.push(header);
+                }
+            }
+        }
+
+        this._headers.forEach(header => {
+            let key = header.key;
+            let value = header.value;
+            let structured;
+            let param;
+            let options = {};
+            let formattedHeaders = ['From', 'Sender', 'To', 'Cc', 'Bcc', 'Reply-To', 'Date', 'References'];
+
+            if (value && typeof value === 'object' && !formattedHeaders.includes(key)) {
+                Object.keys(value).forEach(key => {
+                    if (key !== 'value') {
+                        options[key] = value[key];
+                    }
+                });
+                value = (value.value || '').toString();
+                if (!value.trim()) {
+                    return;
+                }
+            }
+
+            if (options.prepared) {
+                // header value is
+                if (options.foldLines) {
+                    headers.push(mimeFuncs.foldLines(key + ': ' + value));
+                } else {
+                    headers.push(key + ': ' + value);
+                }
+                return;
+            }
+
+            switch (header.key) {
+                case 'Content-Disposition':
+                    structured = mimeFuncs.parseHeaderValue(value);
+                    if (this.filename) {
+                        structured.params.filename = this.filename;
+                    }
+                    value = mimeFuncs.buildHeaderValue(structured);
+                    break;
+
+                case 'Content-Type':
+                    structured = mimeFuncs.parseHeaderValue(value);
+
+                    this._handleContentType(structured);
+
+                    if (structured.value.match(/^text\/plain\b/) && typeof this.content === 'string' && /[\u0080-\uFFFF]/.test(this.content)) {
+                        structured.params.charset = 'utf-8';
+                    }
+
+                    value = mimeFuncs.buildHeaderValue(structured);
+
+                    if (this.filename) {
+                        // add support for non-compliant clients like QQ webmail
+                        // we can't build the value with buildHeaderValue as the value is non standard and
+                        // would be converted to parameter continuation encoding that we do not want
+                        param = this._encodeWords(this.filename);
+
+                        if (param !== this.filename || /[\s'"\\;:/=(),<>@[\]?]|^-/.test(param)) {
+                            // include value in quotes if needed
+                            param = '"' + param + '"';
+                        }
+                        value += '; name=' + param;
+                    }
+                    break;
+
+                case 'Bcc':
+                    if (!this.keepBcc) {
+                        // skip BCC values
+                        return;
+                    }
+                    break;
+            }
+
+            value = this._encodeHeaderValue(key, value);
+
+            // skip empty lines
+            if (!(value || '').toString().trim()) {
+                return;
+            }
+
+            if (typeof this.normalizeHeaderKey === 'function') {
+                let normalized = this.normalizeHeaderKey(key, value);
+                if (normalized && typeof normalized === 'string' && normalized.length) {
+                    key = normalized;
+                }
+            }
+
+            headers.push(mimeFuncs.foldLines(key + ': ' + value, 76));
+        });
+
+        return headers.join('\r\n');
+    }
+
+    /**
+     * Streams the rfc2822 message from the current node. If this is a root node,
+     * mandatory header fields are set if missing (Date, Message-Id, MIME-Version)
+     *
+     * @return {String} Compiled message
+     */
+    createReadStream(options) {
+        options = options || {};
+
+        let stream = new PassThrough(options);
+        let outputStream = stream;
+        let transform;
+
+        this.stream(stream, options, err => {
+            if (err) {
+                outputStream.emit('error', err);
+                return;
+            }
+            stream.end();
+        });
+
+        for (let i = 0, len = this._transforms.length; i < len; i++) {
+            transform = typeof this._transforms[i] === 'function' ? this._transforms[i]() : this._transforms[i];
+            outputStream.once('error', err => {
+                transform.emit('error', err);
+            });
+            outputStream = outputStream.pipe(transform);
+        }
+
+        // ensure terminating newline after possible user transforms
+        transform = new LastNewline();
+        outputStream.once('error', err => {
+            transform.emit('error', err);
+        });
+        outputStream = outputStream.pipe(transform);
+
+        // dkim and stuff
+        for (let i = 0, len = this._processFuncs.length; i < len; i++) {
+            transform = this._processFuncs[i];
+            outputStream = transform(outputStream);
+        }
+
+        if (this.newline) {
+            const winbreak = ['win', 'windows', 'dos', '\r\n'].includes(this.newline.toString().toLowerCase());
+            const newlineTransform = winbreak ? new LeWindows() : new LeUnix();
+
+            const stream = outputStream.pipe(newlineTransform);
+            outputStream.on('error', err => stream.emit('error', err));
+            return stream;
+        }
+
+        return outputStream;
+    }
+
+    /**
+     * Appends a transform stream object to the transforms list. Final output
+     * is passed through this stream before exposing
+     *
+     * @param {Object} transform Read-Write stream
+     */
+    transform(transform) {
+        this._transforms.push(transform);
+    }
+
+    /**
+     * Appends a post process function. The functon is run after transforms and
+     * uses the following syntax
+     *
+     *   processFunc(input) -> outputStream
+     *
+     * @param {Object} processFunc Read-Write stream
+     */
+    processFunc(processFunc) {
+        this._processFuncs.push(processFunc);
+    }
+
+    stream(outputStream, options, done) {
+        let transferEncoding = this.getTransferEncoding();
+        let contentStream;
+        let localStream;
+
+        // protect actual callback against multiple triggering
+        let returned = false;
+        let callback = err => {
+            if (returned) {
+                return;
+            }
+            returned = true;
+            done(err);
+        };
+
+        // for multipart nodes, push child nodes
+        // for content nodes end the stream
+        let finalize = () => {
+            let childId = 0;
+            let processChildNode = () => {
+                if (childId >= this.childNodes.length) {
+                    outputStream.write('\r\n--' + this.boundary + '--\r\n');
+                    return callback();
+                }
+                let child = this.childNodes[childId++];
+                outputStream.write((childId > 1 ? '\r\n' : '') + '--' + this.boundary + '\r\n');
+                child.stream(outputStream, options, err => {
+                    if (err) {
+                        return callback(err);
+                    }
+                    setImmediate(processChildNode);
+                });
+            };
+
+            if (this.multipart) {
+                setImmediate(processChildNode);
+            } else {
+                return callback();
+            }
+        };
+
+        // pushes node content
+        let sendContent = () => {
+            if (this.content) {
+                if (Object.prototype.toString.call(this.content) === '[object Error]') {
+                    // content is already errored
+                    return callback(this.content);
+                }
+
+                if (typeof this.content.pipe === 'function') {
+                    this.content.removeListener('error', this._contentErrorHandler);
+                    this._contentErrorHandler = err => callback(err);
+                    this.content.once('error', this._contentErrorHandler);
+                }
+
+                let createStream = () => {
+                    if (['quoted-printable', 'base64'].includes(transferEncoding)) {
+                        contentStream = new (transferEncoding === 'base64' ? base64 : qp).Encoder(options);
+
+                        contentStream.pipe(outputStream, {
+                            end: false
+                        });
+                        contentStream.once('end', finalize);
+                        contentStream.once('error', err => callback(err));
+
+                        localStream = this._getStream(this.content);
+                        localStream.pipe(contentStream);
+                    } else {
+                        // anything that is not QP or Base54 passes as-is
+                        localStream = this._getStream(this.content);
+                        localStream.pipe(outputStream, {
+                            end: false
+                        });
+                        localStream.once('end', finalize);
+                    }
+
+                    localStream.once('error', err => callback(err));
+                };
+
+                if (this.content._resolve) {
+                    let chunks = [];
+                    let chunklen = 0;
+                    let returned = false;
+                    let sourceStream = this._getStream(this.content);
+                    sourceStream.on('error', err => {
+                        if (returned) {
+                            return;
+                        }
+                        returned = true;
+                        callback(err);
+                    });
+                    sourceStream.on('readable', () => {
+                        let chunk;
+                        while ((chunk = sourceStream.read()) !== null) {
+                            chunks.push(chunk);
+                            chunklen += chunk.length;
+                        }
+                    });
+                    sourceStream.on('end', () => {
+                        if (returned) {
+                            return;
+                        }
+                        returned = true;
+                        this.content._resolve = false;
+                        this.content._resolvedValue = Buffer.concat(chunks, chunklen);
+                        setImmediate(createStream);
+                    });
+                } else {
+                    setImmediate(createStream);
+                }
+                return;
+            } else {
+                return setImmediate(finalize);
+            }
+        };
+
+        if (this._raw) {
+            setImmediate(() => {
+                if (Object.prototype.toString.call(this._raw) === '[object Error]') {
+                    // content is already errored
+                    return callback(this._raw);
+                }
+
+                // remove default error handler (if set)
+                if (typeof this._raw.pipe === 'function') {
+                    this._raw.removeListener('error', this._contentErrorHandler);
+                }
+
+                let raw = this._getStream(this._raw);
+                raw.pipe(outputStream, {
+                    end: false
+                });
+                raw.on('error', err => outputStream.emit('error', err));
+                raw.on('end', finalize);
+            });
+        } else {
+            outputStream.write(this.buildHeaders() + '\r\n\r\n');
+            setImmediate(sendContent);
+        }
+    }
+
+    /**
+     * Sets envelope to be used instead of the generated one
+     *
+     * @return {Object} SMTP envelope in the form of {from: 'from@example.com', to: ['to@example.com']}
+     */
+    setEnvelope(envelope) {
+        let list;
+
+        this._envelope = {
+            from: false,
+            to: []
+        };
+
+        if (envelope.from) {
+            list = [];
+            this._convertAddresses(this._parseAddresses(envelope.from), list);
+            list = list.filter(address => address && address.address);
+            if (list.length && list[0]) {
+                this._envelope.from = list[0].address;
+            }
+        }
+        ['to', 'cc', 'bcc'].forEach(key => {
+            if (envelope[key]) {
+                this._convertAddresses(this._parseAddresses(envelope[key]), this._envelope.to);
+            }
+        });
+
+        this._envelope.to = this._envelope.to.map(to => to.address).filter(address => address);
+
+        let standardFields = ['to', 'cc', 'bcc', 'from'];
+        Object.keys(envelope).forEach(key => {
+            if (!standardFields.includes(key)) {
+                this._envelope[key] = envelope[key];
+            }
+        });
+
+        return this;
+    }
+
+    /**
+     * Generates and returns an object with parsed address fields
+     *
+     * @return {Object} Address object
+     */
+    getAddresses() {
+        let addresses = {};
+
+        this._headers.forEach(header => {
+            let key = header.key.toLowerCase();
+            if (['from', 'sender', 'reply-to', 'to', 'cc', 'bcc'].includes(key)) {
+                if (!Array.isArray(addresses[key])) {
+                    addresses[key] = [];
+                }
+
+                this._convertAddresses(this._parseAddresses(header.value), addresses[key]);
+            }
+        });
+
+        return addresses;
+    }
+
+    /**
+     * Generates and returns SMTP envelope with the sender address and a list of recipients addresses
+     *
+     * @return {Object} SMTP envelope in the form of {from: 'from@example.com', to: ['to@example.com']}
+     */
+    getEnvelope() {
+        if (this._envelope) {
+            return this._envelope;
+        }
+
+        let envelope = {
+            from: false,
+            to: []
+        };
+        this._headers.forEach(header => {
+            let list = [];
+            if (header.key === 'From' || (!envelope.from && ['Reply-To', 'Sender'].includes(header.key))) {
+                this._convertAddresses(this._parseAddresses(header.value), list);
+                if (list.length && list[0]) {
+                    envelope.from = list[0].address;
+                }
+            } else if (['To', 'Cc', 'Bcc'].includes(header.key)) {
+                this._convertAddresses(this._parseAddresses(header.value), envelope.to);
+            }
+        });
+
+        envelope.to = envelope.to.map(to => to.address);
+
+        return envelope;
+    }
+
+    /**
+     * Returns Message-Id value. If it does not exist, then creates one
+     *
+     * @return {String} Message-Id value
+     */
+    messageId() {
+        let messageId = this.getHeader('Message-ID');
+        // You really should define your own Message-Id field!
+        if (!messageId) {
+            messageId = this._generateMessageId();
+            this.setHeader('Message-ID', messageId);
+        }
+        return messageId;
+    }
+
+    /**
+     * Sets pregenerated content that will be used as the output of this node
+     *
+     * @param {String|Buffer|Stream} Raw MIME contents
+     */
+    setRaw(raw) {
+        this._raw = raw;
+
+        if (this._raw && typeof this._raw.pipe === 'function') {
+            // pre-stream handler. might be triggered if a stream is set as content
+            // and 'error' fires before anything is done with this stream
+            this._contentErrorHandler = err => {
+                this._raw.removeListener('error', this._contentErrorHandler);
+                this._raw = err;
+            };
+            this._raw.once('error', this._contentErrorHandler);
+        }
+
+        return this;
+    }
+
+    /////// PRIVATE METHODS
+
+    /**
+     * Detects and returns handle to a stream related with the content.
+     *
+     * @param {Mixed} content Node content
+     * @returns {Object} Stream object
+     */
+    _getStream(content) {
+        let contentStream;
+
+        if (content._resolvedValue) {
+            // pass string or buffer content as a stream
+            contentStream = new PassThrough();
+
+            setImmediate(() => {
+                try {
+                    contentStream.end(content._resolvedValue);
+                } catch (err) {
+                    contentStream.emit('error', err);
+                }
+            });
+
+            return contentStream;
+        } else if (typeof content.pipe === 'function') {
+            // assume as stream
+            return content;
+        } else if (content && typeof content.path === 'string' && !content.href) {
+            if (this.disableFileAccess) {
+                contentStream = new PassThrough();
+                setImmediate(() => contentStream.emit('error', new Error('File access rejected for ' + content.path)));
+                return contentStream;
+            }
+            // read file
+            return fs.createReadStream(content.path);
+        } else if (content && typeof content.href === 'string') {
+            if (this.disableUrlAccess) {
+                contentStream = new PassThrough();
+                setImmediate(() => contentStream.emit('error', new Error('Url access rejected for ' + content.href)));
+                return contentStream;
+            }
+            // fetch URL
+            return nmfetch(content.href, { headers: content.httpHeaders });
+        } else {
+            // pass string or buffer content as a stream
+            contentStream = new PassThrough();
+
+            setImmediate(() => {
+                try {
+                    contentStream.end(content || '');
+                } catch (err) {
+                    contentStream.emit('error', err);
+                }
+            });
+            return contentStream;
+        }
+    }
+
+    /**
+     * Parses addresses. Takes in a single address or an array or an
+     * array of address arrays (eg. To: [[first group], [second group],...])
+     *
+     * @param {Mixed} addresses Addresses to be parsed
+     * @return {Array} An array of address objects
+     */
+    _parseAddresses(addresses) {
+        return [].concat.apply(
+            [],
+            [].concat(addresses).map(address => {
+                // eslint-disable-line prefer-spread
+                if (address && address.address) {
+                    address.address = this._normalizeAddress(address.address);
+                    address.name = address.name || '';
+                    return [address];
+                }
+                return addressparser(address);
+            })
+        );
+    }
+
+    /**
+     * Normalizes a header key, uses Camel-Case form, except for uppercase MIME-
+     *
+     * @param {String} key Key to be normalized
+     * @return {String} key in Camel-Case form
+     */
+    _normalizeHeaderKey(key) {
+        key = (key || '')
+            .toString()
+            // no newlines in keys
+            .replace(/\r?\n|\r/g, ' ')
+            .trim()
+            .toLowerCase()
+            // use uppercase words, except MIME
+            .replace(/^X-SMTPAPI$|^(MIME|DKIM|ARC|BIMI)\b|^[a-z]|-(SPF|FBL|ID|MD5)$|-[a-z]/gi, c => c.toUpperCase())
+            // special case
+            .replace(/^Content-Features$/i, 'Content-features');
+
+        return key;
+    }
+
+    /**
+     * Checks if the content type is multipart and defines boundary if needed.
+     * Doesn't return anything, modifies object argument instead.
+     *
+     * @param {Object} structured Parsed header value for 'Content-Type' key
+     */
+    _handleContentType(structured) {
+        this.contentType = structured.value.trim().toLowerCase();
+
+        this.multipart = /^multipart\//i.test(this.contentType) ? this.contentType.substr(this.contentType.indexOf('/') + 1) : false;
+
+        if (this.multipart) {
+            this.boundary = structured.params.boundary = structured.params.boundary || this.boundary || this._generateBoundary();
+        } else {
+            this.boundary = false;
+        }
+    }
+
+    /**
+     * Generates a multipart boundary value
+     *
+     * @return {String} boundary value
+     */
+    _generateBoundary() {
+        return this.rootNode.boundaryPrefix + '-' + this.rootNode.baseBoundary + '-Part_' + this._nodeId;
+    }
+
+    /**
+     * Encodes a header value for use in the generated rfc2822 email.
+     *
+     * @param {String} key Header key
+     * @param {String} value Header value
+     */
+    _encodeHeaderValue(key, value) {
+        key = this._normalizeHeaderKey(key);
+
+        switch (key) {
+            // Structured headers
+            case 'From':
+            case 'Sender':
+            case 'To':
+            case 'Cc':
+            case 'Bcc':
+            case 'Reply-To':
+                return this._convertAddresses(this._parseAddresses(value));
+
+            // values enclosed in <>
+            case 'Message-ID':
+            case 'In-Reply-To':
+            case 'Content-Id':
+                value = (value || '').toString().replace(/\r?\n|\r/g, ' ');
+
+                if (value.charAt(0) !== '<') {
+                    value = '<' + value;
+                }
+
+                if (value.charAt(value.length - 1) !== '>') {
+                    value = value + '>';
+                }
+                return value;
+
+            // space separated list of values enclosed in <>
+            case 'References':
+                value = [].concat
+                    .apply(
+                        [],
+                        [].concat(value || '').map(elm => {
+                            // eslint-disable-line prefer-spread
+                            elm = (elm || '')
+                                .toString()
+                                .replace(/\r?\n|\r/g, ' ')
+                                .trim();
+                            return elm.replace(/<[^>]*>/g, str => str.replace(/\s/g, '')).split(/\s+/);
+                        })
+                    )
+                    .map(elm => {
+                        if (elm.charAt(0) !== '<') {
+                            elm = '<' + elm;
+                        }
+                        if (elm.charAt(elm.length - 1) !== '>') {
+                            elm = elm + '>';
+                        }
+                        return elm;
+                    });
+
+                return value.join(' ').trim();
+
+            case 'Date':
+                if (Object.prototype.toString.call(value) === '[object Date]') {
+                    return value.toUTCString().replace(/GMT/, '+0000');
+                }
+
+                value = (value || '').toString().replace(/\r?\n|\r/g, ' ');
+                return this._encodeWords(value);
+
+            case 'Content-Type':
+            case 'Content-Disposition':
+                // if it includes a filename then it is already encoded
+                return (value || '').toString().replace(/\r?\n|\r/g, ' ');
+
+            default:
+                value = (value || '').toString().replace(/\r?\n|\r/g, ' ');
+                // encodeWords only encodes if needed, otherwise the original string is returned
+                return this._encodeWords(value);
+        }
+    }
+
+    /**
+     * Rebuilds address object using punycode and other adjustments
+     *
+     * @param {Array} addresses An array of address objects
+     * @param {Array} [uniqueList] An array to be populated with addresses
+     * @return {String} address string
+     */
+    _convertAddresses(addresses, uniqueList) {
+        let values = [];
+
+        uniqueList = uniqueList || [];
+
+        [].concat(addresses || []).forEach(address => {
+            if (address.address) {
+                address.address = this._normalizeAddress(address.address);
+
+                if (!address.name) {
+                    values.push(address.address.indexOf(' ') >= 0 ? `<${address.address}>` : `${address.address}`);
+                } else if (address.name) {
+                    values.push(`${this._encodeAddressName(address.name)} <${address.address}>`);
+                }
+
+                if (address.address) {
+                    if (!uniqueList.filter(a => a.address === address.address).length) {
+                        uniqueList.push(address);
+                    }
+                }
+            } else if (address.group) {
+                let groupListAddresses = (address.group.length ? this._convertAddresses(address.group, uniqueList) : '').trim();
+                values.push(`${this._encodeAddressName(address.name)}:${groupListAddresses};`);
+            }
+        });
+
+        return values.join(', ');
+    }
+
+    /**
+     * Normalizes an email address
+     *
+     * @param {Array} address An array of address objects
+     * @return {String} address string
+     */
+    _normalizeAddress(address) {
+        address = (address || '')
+            .toString()
+            .replace(/[\x00-\x1F<>]+/g, ' ') // remove unallowed characters
+            .trim();
+
+        let lastAt = address.lastIndexOf('@');
+        if (lastAt < 0) {
+            // Bare username
+            return address;
+        }
+
+        let user = address.substr(0, lastAt);
+        let domain = address.substr(lastAt + 1);
+
+        // Usernames are not touched and are kept as is even if these include unicode
+        // Domains are punycoded by default
+        // 'jõgeva.ee' will be converted to 'xn--jgeva-dua.ee'
+        // non-unicode domains are left as is
+
+        let encodedDomain;
+
+        try {
+            encodedDomain = punycode.toASCII(domain.toLowerCase());
+        } catch (err) {
+            // keep as is?
+        }
+
+        if (user.indexOf(' ') >= 0) {
+            if (user.charAt(0) !== '"') {
+                user = '"' + user;
+            }
+            if (user.substr(-1) !== '"') {
+                user = user + '"';
+            }
+        }
+
+        return `${user}@${encodedDomain}`;
+    }
+
+    /**
+     * If needed, mime encodes the name part
+     *
+     * @param {String} name Name part of an address
+     * @returns {String} Mime word encoded string if needed
+     */
+    _encodeAddressName(name) {
+        if (!/^[\w ]*$/.test(name)) {
+            if (/^[\x20-\x7e]*$/.test(name)) {
+                return '"' + name.replace(/([\\"])/g, '\\$1') + '"';
+            } else {
+                return mimeFuncs.encodeWord(name, this._getTextEncoding(name), 52);
+            }
+        }
+        return name;
+    }
+
+    /**
+     * If needed, mime encodes the name part
+     *
+     * @param {String} name Name part of an address
+     * @returns {String} Mime word encoded string if needed
+     */
+    _encodeWords(value) {
+        // set encodeAll parameter to true even though it is against the recommendation of RFC2047,
+        // by default only words that include non-ascii should be converted into encoded words
+        // but some clients (eg. Zimbra) do not handle it properly and remove surrounding whitespace
+        return mimeFuncs.encodeWords(value, this._getTextEncoding(value), 52, true);
+    }
+
+    /**
+     * Detects best mime encoding for a text value
+     *
+     * @param {String} value Value to check for
+     * @return {String} either 'Q' or 'B'
+     */
+    _getTextEncoding(value) {
+        value = (value || '').toString();
+
+        let encoding = this.textEncoding;
+        let latinLen;
+        let nonLatinLen;
+
+        if (!encoding) {
+            // count latin alphabet symbols and 8-bit range symbols + control symbols
+            // if there are more latin characters, then use quoted-printable
+            // encoding, otherwise use base64
+            nonLatinLen = (value.match(/[\x00-\x08\x0B\x0C\x0E-\x1F\u0080-\uFFFF]/g) || []).length; // eslint-disable-line no-control-regex
+            latinLen = (value.match(/[a-z]/gi) || []).length;
+            // if there are more latin symbols than binary/unicode, then prefer Q, otherwise B
+            encoding = nonLatinLen < latinLen ? 'Q' : 'B';
+        }
+        return encoding;
+    }
+
+    /**
+     * Generates a message id
+     *
+     * @return {String} Random Message-ID value
+     */
+    _generateMessageId() {
+        return (
+            '<' +
+            [2, 2, 2, 6].reduce(
+                // crux to generate UUID-like random strings
+                (prev, len) => prev + '-' + crypto.randomBytes(len).toString('hex'),
+                crypto.randomBytes(4).toString('hex')
+            ) +
+            '@' +
+            // try to use the domain of the FROM address or fallback to server hostname
+            (this.getEnvelope().from || this.hostname || 'localhost').split('@').pop() +
+            '>'
+        );
+    }
+}
+
+module.exports = MimeNode;
diff --git a/backend/node_modules/nodemailer/lib/mime-node/last-newline.js b/backend/node_modules/nodemailer/lib/mime-node/last-newline.js
new file mode 100644
index 0000000..5fcd057
--- /dev/null
+++ b/backend/node_modules/nodemailer/lib/mime-node/last-newline.js
@@ -0,0 +1,33 @@
+'use strict';
+
+const Transform = require('stream').Transform;
+
+class LastNewline extends Transform {
+    constructor() {
+        super();
+        this.lastByte = false;
+    }
+
+    _transform(chunk, encoding, done) {
+        if (chunk.length) {
+            this.lastByte = chunk[chunk.length - 1];
+        }
+
+        this.push(chunk);
+        done();
+    }
+
+    _flush(done) {
+        if (this.lastByte === 0x0a) {
+            return done();
+        }
+        if (this.lastByte === 0x0d) {
+            this.push(Buffer.from('\n'));
+            return done();
+        }
+        this.push(Buffer.from('\r\n'));
+        return done();
+    }
+}
+
+module.exports = LastNewline;
diff --git a/backend/node_modules/nodemailer/lib/mime-node/le-unix.js b/backend/node_modules/nodemailer/lib/mime-node/le-unix.js
new file mode 100644
index 0000000..5feacd3
--- /dev/null
+++ b/backend/node_modules/nodemailer/lib/mime-node/le-unix.js
@@ -0,0 +1,43 @@
+'use strict';
+
+const stream = require('stream');
+const Transform = stream.Transform;
+
+/**
+ * Ensures that only <LF> is used for linebreaks
+ *
+ * @param {Object} options Stream options
+ */
+class LeWindows extends Transform {
+    constructor(options) {
+        super(options);
+        // init Transform
+        this.options = options || {};
+    }
+
+    /**
+     * Escapes dots
+     */
+    _transform(chunk, encoding, done) {
+        let buf;
+        let lastPos = 0;
+
+        for (let i = 0, len = chunk.length; i < len; i++) {
+            if (chunk[i] === 0x0d) {
+                // \n
+                buf = chunk.slice(lastPos, i);
+                lastPos = i + 1;
+                this.push(buf);
+            }
+        }
+        if (lastPos && lastPos < chunk.length) {
+            buf = chunk.slice(lastPos);
+            this.push(buf);
+        } else if (!lastPos) {
+            this.push(chunk);
+        }
+        done();
+    }
+}
+
+module.exports = LeWindows;
diff --git a/backend/node_modules/nodemailer/lib/mime-node/le-windows.js b/backend/node_modules/nodemailer/lib/mime-node/le-windows.js
new file mode 100644
index 0000000..b156a7c
--- /dev/null
+++ b/backend/node_modules/nodemailer/lib/mime-node/le-windows.js
@@ -0,0 +1,52 @@
+'use strict';
+
+const stream = require('stream');
+const Transform = stream.Transform;
+
+/**
+ * Ensures that only <CR><LF> sequences are used for linebreaks
+ *
+ * @param {Object} options Stream options
+ */
+class LeWindows extends Transform {
+    constructor(options) {
+        super(options);
+        // init Transform
+        this.options = options || {};
+        this.lastByte = false;
+    }
+
+    /**
+     * Escapes dots
+     */
+    _transform(chunk, encoding, done) {
+        let buf;
+        let lastPos = 0;
+
+        for (let i = 0, len = chunk.length; i < len; i++) {
+            if (chunk[i] === 0x0a) {
+                // \n
+                if ((i && chunk[i - 1] !== 0x0d) || (!i && this.lastByte !== 0x0d)) {
+                    if (i > lastPos) {
+                        buf = chunk.slice(lastPos, i);
+                        this.push(buf);
+                    }
+                    this.push(Buffer.from('\r\n'));
+                    lastPos = i + 1;
+                }
+            }
+        }
+
+        if (lastPos && lastPos < chunk.length) {
+            buf = chunk.slice(lastPos);
+            this.push(buf);
+        } else if (!lastPos) {
+            this.push(chunk);
+        }
+
+        this.lastByte = chunk[chunk.length - 1];
+        done();
+    }
+}
+
+module.exports = LeWindows;
diff --git a/backend/node_modules/nodemailer/lib/nodemailer.js b/backend/node_modules/nodemailer/lib/nodemailer.js
new file mode 100644
index 0000000..7f38f04
--- /dev/null
+++ b/backend/node_modules/nodemailer/lib/nodemailer.js
@@ -0,0 +1,155 @@
+'use strict';
+
+const Mailer = require('./mailer');
+const shared = require('./shared');
+const SMTPPool = require('./smtp-pool');
+const SMTPTransport = require('./smtp-transport');
+const SendmailTransport = require('./sendmail-transport');
+const StreamTransport = require('./stream-transport');
+const JSONTransport = require('./json-transport');
+const SESTransport = require('./ses-transport');
+const nmfetch = require('./fetch');
+const packageData = require('../package.json');
+
+const ETHEREAL_API = (process.env.ETHEREAL_API || 'https://api.nodemailer.com').replace(/\/+$/, '');
+const ETHEREAL_WEB = (process.env.ETHEREAL_WEB || 'https://ethereal.email').replace(/\/+$/, '');
+const ETHEREAL_API_KEY = (process.env.ETHEREAL_API_KEY || '').replace(/\s*/g, '') || null;
+const ETHEREAL_CACHE = ['true', 'yes', 'y', '1'].includes((process.env.ETHEREAL_CACHE || 'yes').toString().trim().toLowerCase());
+
+let testAccount = false;
+
+module.exports.createTransport = function (transporter, defaults) {
+    let urlConfig;
+    let options;
+    let mailer;
+
+    if (
+        // provided transporter is a configuration object, not transporter plugin
+        (typeof transporter === 'object' && typeof transporter.send !== 'function') ||
+        // provided transporter looks like a connection url
+        (typeof transporter === 'string' && /^(smtps?|direct):/i.test(transporter))
+    ) {
+        if ((urlConfig = typeof transporter === 'string' ? transporter : transporter.url)) {
+            // parse a configuration URL into configuration options
+            options = shared.parseConnectionUrl(urlConfig);
+        } else {
+            options = transporter;
+        }
+
+        if (options.pool) {
+            transporter = new SMTPPool(options);
+        } else if (options.sendmail) {
+            transporter = new SendmailTransport(options);
+        } else if (options.streamTransport) {
+            transporter = new StreamTransport(options);
+        } else if (options.jsonTransport) {
+            transporter = new JSONTransport(options);
+        } else if (options.SES) {
+            if (options.SES.ses && options.SES.aws) {
+                let error = new Error('Using legacy SES configuration, expecting @aws-sdk/client-sesv2, see https://nodemailer.com/transports/ses/');
+                error.code = 'LegacyConfig';
+                throw error;
+            }
+            transporter = new SESTransport(options);
+        } else {
+            transporter = new SMTPTransport(options);
+        }
+    }
+
+    mailer = new Mailer(transporter, options, defaults);
+
+    return mailer;
+};
+
+module.exports.createTestAccount = function (apiUrl, callback) {
+    let promise;
+
+    if (!callback && typeof apiUrl === 'function') {
+        callback = apiUrl;
+        apiUrl = false;
+    }
+
+    if (!callback) {
+        promise = new Promise((resolve, reject) => {
+            callback = shared.callbackPromise(resolve, reject);
+        });
+    }
+
+    if (ETHEREAL_CACHE && testAccount) {
+        setImmediate(() => callback(null, testAccount));
+        return promise;
+    }
+
+    apiUrl = apiUrl || ETHEREAL_API;
+
+    let chunks = [];
+    let chunklen = 0;
+
+    let requestHeaders = {};
+    let requestBody = {
+        requestor: packageData.name,
+        version: packageData.version
+    };
+
+    if (ETHEREAL_API_KEY) {
+        requestHeaders.Authorization = 'Bearer ' + ETHEREAL_API_KEY;
+    }
+
+    let req = nmfetch(apiUrl + '/user', {
+        contentType: 'application/json',
+        method: 'POST',
+        headers: requestHeaders,
+        body: Buffer.from(JSON.stringify(requestBody))
+    });
+
+    req.on('readable', () => {
+        let chunk;
+        while ((chunk = req.read()) !== null) {
+            chunks.push(chunk);
+            chunklen += chunk.length;
+        }
+    });
+
+    req.once('error', err => callback(err));
+
+    req.once('end', () => {
+        let res = Buffer.concat(chunks, chunklen);
+        let data;
+        let err;
+        try {
+            data = JSON.parse(res.toString());
+        } catch (E) {
+            err = E;
+        }
+        if (err) {
+            return callback(err);
+        }
+        if (data.status !== 'success' || data.error) {
+            return callback(new Error(data.error || 'Request failed'));
+        }
+        delete data.status;
+        testAccount = data;
+        callback(null, testAccount);
+    });
+
+    return promise;
+};
+
+module.exports.getTestMessageUrl = function (info) {
+    if (!info || !info.response) {
+        return false;
+    }
+
+    let infoProps = new Map();
+    info.response.replace(/\[([^\]]+)\]$/, (m, props) => {
+        props.replace(/\b([A-Z0-9]+)=([^\s]+)/g, (m, key, value) => {
+            infoProps.set(key, value);
+        });
+    });
+
+    if (infoProps.has('STATUS') && infoProps.has('MSGID')) {
+        return (testAccount.web || ETHEREAL_WEB) + '/message/' + infoProps.get('MSGID');
+    }
+
+    return false;
+};
diff --git a/backend/node_modules/nodemailer/lib/punycode/index.js b/backend/node_modules/nodemailer/lib/punycode/index.js
new file mode 100644
index 0000000..cd3e494
--- /dev/null
+++ b/backend/node_modules/nodemailer/lib/punycode/index.js
@@ -0,0 +1,460 @@
+/*
+
+Copied from https://github.com/mathiasbynens/punycode.js/blob/ef3505c8abb5143a00d53ce59077c9f7f4b2ac47/punycode.js
+
+Copyright Mathias Bynens <https://mathiasbynens.be/>
+
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of this software and associated documentation files (the
+"Software"), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sublicense, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to
+the following conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+*/
+/* eslint callback-return: 0, no-bitwise: 0, eqeqeq: 0, prefer-arrow-callback: 0, object-shorthand: 0 */
+
+'use strict';
+
+/** Highest positive signed 32-bit float value */
+const maxInt = 2147483647; // aka. 0x7FFFFFFF or 2^31-1
+
+/** Bootstring parameters */
+const base = 36;
+const tMin = 1;
+const tMax = 26;
+const skew = 38;
+const damp = 700;
+const initialBias = 72;
+const initialN = 128; // 0x80
+const delimiter = '-'; // '\x2D'
+
+/** Regular expressions */
+const regexPunycode = /^xn--/;
+const regexNonASCII = /[^\0-\x7F]/; // Note: U+007F DEL is excluded too.
+const regexSeparators = /[\x2E\u3002\uFF0E\uFF61]/g; // RFC 3490 separators
+
+/** Error messages */
+const errors = {
+    overflow: 'Overflow: input needs wider integers to process',
+    'not-basic': 'Illegal input >= 0x80 (not a basic code point)',
+    'invalid-input': 'Invalid input'
+};
+
+/** Convenience shortcuts */
+const baseMinusTMin = base - tMin;
+const floor = Math.floor;
+const stringFromCharCode = String.fromCharCode;
+
+/*--------------------------------------------------------------------------*/
+
+/**
+ * A generic error utility function.
+ * @private
+ * @param {String} type The error type.
+ * @returns {Error} Throws a `RangeError` with the applicable error message.
+ */
+function error(type) {
+    throw new RangeError(errors[type]);
+}
+
+/**
+ * A generic `Array#map` utility function.
+ * @private
+ * @param {Array} array The array to iterate over.
+ * @param {Function} callback The function that gets called for every array
+ * item.
+ * @returns {Array} A new array of values returned by the callback function.
+ */
+function map(array, callback) {
+    const result = [];
+    let length = array.length;
+    while (length--) {
+        result[length] = callback(array[length]);
+    }
+    return result;
+}
+
+/**
+ * A simple `Array#map`-like wrapper to work with domain name strings or email
+ * addresses.
+ * @private
+ * @param {String} domain The domain name or email address.
+ * @param {Function} callback The function that gets called for every
+ * character.
+ * @returns {String} A new string of characters returned by the callback
+ * function.
+ */
+function mapDomain(domain, callback) {
+    const parts = domain.split('@');
+    let result = '';
+    if (parts.length > 1) {
+        // In email addresses, only the domain name should be punycoded. Leave
+        // the local part (i.e. everything up to `@`) intact.
+        result = parts[0] + '@';
+        domain = parts[1];
+    }
+    // Avoid `split(regex)` for IE8 compatibility. See #17.
+    domain = domain.replace(regexSeparators, '\x2E');
+    const labels = domain.split('.');
+    const encoded = map(labels, callback).join('.');
+    return result + encoded;
+}
+
+/**
+ * Creates an array containing the numeric code points of each Unicode
+ * character in the string. While JavaScript uses UCS-2 internally,
+ * this function will convert a pair of surrogate halves (each of which
+ * UCS-2 exposes as separate characters) into a single code point,
+ * matching UTF-16.
+ * @see `punycode.ucs2.encode`
+ * @see <https://mathiasbynens.be/notes/javascript-encoding>
+ * @memberOf punycode.ucs2
+ * @name decode
+ * @param {String} string The Unicode input string (UCS-2).
+ * @returns {Array} The new array of code points.
+ */
+function ucs2decode(string) {
+    const output = [];
+    let counter = 0;
+    const length = string.length;
+    while (counter < length) {
+        const value = string.charCodeAt(counter++);
+        if (value >= 0xd800 && value <= 0xdbff && counter < length) {
+            // It's a high surrogate, and there is a next character.
+            const extra = string.charCodeAt(counter++);
+            if ((extra & 0xfc00) == 0xdc00) {
+                // Low surrogate.
+                output.push(((value & 0x3ff) << 10) + (extra & 0x3ff) + 0x10000);
+            } else {
+                // It's an unmatched surrogate; only append this code unit, in case the
+                // next code unit is the high surrogate of a surrogate pair.
+                output.push(value);
+                counter--;
+            }
+        } else {
+            output.push(value);
+        }
+    }
+    return output;
+}
+
+/**
+ * Creates a string based on an array of numeric code points.
+ * @see `punycode.ucs2.decode`
+ * @memberOf punycode.ucs2
+ * @name encode
+ * @param {Array} codePoints The array of numeric code points.
+ * @returns {String} The new Unicode string (UCS-2).
+ */
+const ucs2encode = codePoints => String.fromCodePoint(...codePoints);
+
+/**
+ * Converts a basic code point into a digit/integer.
+ * @see `digitToBasic()`
+ * @private
+ * @param {Number} codePoint The basic numeric code point value.
+ * @returns {Number} The numeric value of a basic code point (for use in
+ * representing integers) in the range `0` to `base - 1`, or `base` if
+ * the code point does not represent a value.
+ */
+const basicToDigit = function (codePoint) {
+    if (codePoint >= 0x30 && codePoint < 0x3a) {
+        return 26 + (codePoint - 0x30);
+    }
+    if (codePoint >= 0x41 && codePoint < 0x5b) {
+        return codePoint - 0x41;
+    }
+    if (codePoint >= 0x61 && codePoint < 0x7b) {
+        return codePoint - 0x61;
+    }
+    return base;
+};
+
+/**
+ * Converts a digit/integer into a basic code point.
+ * @see `basicToDigit()`
+ * @private
+ * @param {Number} digit The numeric value of a basic code point.
+ * @returns {Number} The basic code point whose value (when used for
+ * representing integers) is `digit`, which needs to be in the range
+ * `0` to `base - 1`. If `flag` is non-zero, the uppercase form is
+ * used; else, the lowercase form is used. The behavior is undefined
+ * if `flag` is non-zero and `digit` has no uppercase form.
+ */
+const digitToBasic = function (digit, flag) {
+    //  0..25 map to ASCII a..z or A..Z
+    // 26..35 map to ASCII 0..9
+    return digit + 22 + 75 * (digit < 26) - ((flag != 0) << 5);
+};
+
+/**
+ * Bias adaptation function as per section 3.4 of RFC 3492.
+ * https://tools.ietf.org/html/rfc3492#section-3.4
+ * @private
+ */
+const adapt = function (delta, numPoints, firstTime) {
+    let k = 0;
+    delta = firstTime ? floor(delta / damp) : delta >> 1;
+    delta += floor(delta / numPoints);
+    for (; /* no initialization */ delta > (baseMinusTMin * tMax) >> 1; k += base) {
+        delta = floor(delta / baseMinusTMin);
+    }
+    return floor(k + ((baseMinusTMin + 1) * delta) / (delta + skew));
+};
+
+/**
+ * Converts a Punycode string of ASCII-only symbols to a string of Unicode
+ * symbols.
+ * @memberOf punycode
+ * @param {String} input The Punycode string of ASCII-only symbols.
+ * @returns {String} The resulting string of Unicode symbols.
+ */
+const decode = function (input) {
+    // Don't use UCS-2.
+    const output = [];
+    const inputLength = input.length;
+    let i = 0;
+    let n = initialN;
+    let bias = initialBias;
+
+    // Handle the basic code points: let `basic` be the number of input code
+    // points before the last delimiter, or `0` if there is none, then copy
+    // the first basic code points to the output.
+
+    let basic = input.lastIndexOf(delimiter);
+    if (basic < 0) {
+        basic = 0;
+    }
+
+    for (let j = 0; j < basic; ++j) {
+        // if it's not a basic code point
+        if (input.charCodeAt(j) >= 0x80) {
+            error('not-basic');
+        }
+        output.push(input.charCodeAt(j));
+    }
+
+    // Main decoding loop: start just after the last delimiter if any basic code
+    // points were copied; start at the beginning otherwise.
+
+    for (let index = basic > 0 ? basic + 1 : 0; index < inputLength /* no final expression */; ) {
+        // `index` is the index of the next character to be consumed.
+        // Decode a generalized variable-length integer into `delta`,
+        // which gets added to `i`. The overflow checking is easier
+        // if we increase `i` as we go, then subtract off its starting
+        // value at the end to obtain `delta`.
+        const oldi = i;
+        for (let w = 1, k = base /* no condition */; ; k += base) {
+            if (index >= inputLength) {
+                error('invalid-input');
+            }
+
+            const digit = basicToDigit(input.charCodeAt(index++));
+
+            if (digit >= base) {
+                error('invalid-input');
+            }
+            if (digit > floor((maxInt - i) / w)) {
+                error('overflow');
+            }
+
+            i += digit * w;
+            const t = k <= bias ? tMin : k >= bias + tMax ? tMax : k - bias;
+
+            if (digit < t) {
+                break;
+            }
+
+            const baseMinusT = base - t;
+            if (w > floor(maxInt / baseMinusT)) {
+                error('overflow');
+            }
+
+            w *= baseMinusT;
+        }
+
+        const out = output.length + 1;
+        bias = adapt(i - oldi, out, oldi == 0);
+
+        // `i` was supposed to wrap around from `out` to `0`,
+        // incrementing `n` each time, so we'll fix that now:
+        if (floor(i / out) > maxInt - n) {
+            error('overflow');
+        }
+
+        n += floor(i / out);
+        i %= out;
+
+        // Insert `n` at position `i` of the output.
+        output.splice(i++, 0, n);
+    }
+
+    return String.fromCodePoint(...output);
+};
+
+/**
+ * Converts a string of Unicode symbols (e.g. a domain name label) to a
+ * Punycode string of ASCII-only symbols.
+ * @memberOf punycode
+ * @param {String} input The string of Unicode symbols.
+ * @returns {String} The resulting Punycode string of ASCII-only symbols.
+ */
+const encode = function (input) {
+    const output = [];
+
+    // Convert the input in UCS-2 to an array of Unicode code points.
+    input = ucs2decode(input);
+
+    // Cache the length.
+    const inputLength = input.length;
+
+    // Initialize the state.
+    let n = initialN;
+    let delta = 0;
+    let bias = initialBias;
+
+    // Handle the basic code points.
+    for (const currentValue of input) {
+        if (currentValue < 0x80) {
+            output.push(stringFromCharCode(currentValue));
+        }
+    }
+
+    const basicLength = output.length;
+    let handledCPCount = basicLength;
+
+    // `handledCPCount` is the number of code points that have been handled;
+    // `basicLength` is the number of basic code points.
+
+    // Finish the basic string with a delimiter unless it's empty.
+    if (basicLength) {
+        output.push(delimiter);
+    }
+
+    // Main encoding loop:
+    while (handledCPCount < inputLength) {
+        // All non-basic code points < n have been handled already. Find the next
+        // larger one:
+        let m = maxInt;
+        for (const currentValue of input) {
+            if (currentValue >= n && currentValue < m) {
+                m = currentValue;
+            }
+        }
+
+        // Increase `delta` enough to advance the decoder's <n,i> state to <m,0>,
+        // but guard against overflow.
+        const handledCPCountPlusOne = handledCPCount + 1;
+        if (m - n > floor((maxInt - delta) / handledCPCountPlusOne)) {
+            error('overflow');
+        }
+
+        delta += (m - n) * handledCPCountPlusOne;
+        n = m;
+
+        for (const currentValue of input) {
+            if (currentValue < n && ++delta > maxInt) {
+                error('overflow');
+            }
+            if (currentValue === n) {
+                // Represent delta as a generalized variable-length integer.
+                let q = delta;
+                for (let k = base /* no condition */; ; k += base) {
+                    const t = k <= bias ? tMin : k >= bias + tMax ? tMax : k - bias;
+                    if (q < t) {
+                        break;
+                    }
+                    const qMinusT = q - t;
+                    const baseMinusT = base - t;
+                    output.push(stringFromCharCode(digitToBasic(t + (qMinusT % baseMinusT), 0)));
+                    q = floor(qMinusT / baseMinusT);
+                }
+
+                output.push(stringFromCharCode(digitToBasic(q, 0)));
+                bias = adapt(delta, handledCPCountPlusOne, handledCPCount === basicLength);
+                delta = 0;
+                ++handledCPCount;
+            }
+        }
+
+        ++delta;
+        ++n;
+    }
+    return output.join('');
+};
+
+/**
+ * Converts a Punycode string representing a domain name or an email address
+ * to Unicode. Only the Punycoded parts of the input will be converted, i.e.
+ * it doesn't matter if you call it on a string that has already been
+ * converted to Unicode.
+ * @memberOf punycode
+ * @param {String} input The Punycoded domain name or email address to
+ * convert to Unicode.
+ * @returns {String} The Unicode representation of the given Punycode
+ * string.
+ */
+const toUnicode = function (input) {
+    return mapDomain(input, function (string) {
+        return regexPunycode.test(string) ? decode(string.slice(4).toLowerCase()) : string;
+    });
+};
+
+/**
+ * Converts a Unicode string representing a domain name or an email address to
+ * Punycode. Only the non-ASCII parts of the domain name will be converted,
+ * i.e. it doesn't matter if you call it with a domain that's already in
+ * ASCII.
+ * @memberOf punycode
+ * @param {String} input The domain name or email address to convert, as a
+ * Unicode string.
+ * @returns {String} The Punycode representation of the given domain name or
+ * email address.
+ */
+const toASCII = function (input) {
+    return mapDomain(input, function (string) {
+        return regexNonASCII.test(string) ? 'xn--' + encode(string) : string;
+    });
+};
+
+/*--------------------------------------------------------------------------*/
+
+/** Define the public API */
+const punycode = {
+    /**
+     * A string representing the current Punycode.js version number.
+     * @memberOf punycode
+     * @type String
+     */
+    version: '2.3.1',
+    /**
+     * An object of methods to convert from JavaScript's internal character
+     * representation (UCS-2) to Unicode code points, and back.
+     * @see <https://mathiasbynens.be/notes/javascript-encoding>
+     * @memberOf punycode
+     * @type Object
+     */
+    ucs2: {
+        decode: ucs2decode,
+        encode: ucs2encode
+    },
+    decode: decode,
+    encode: encode,
+    toASCII: toASCII,
+    toUnicode: toUnicode
+};
+
+module.exports = punycode;
diff --git a/backend/node_modules/nodemailer/lib/qp/index.js b/backend/node_modules/nodemailer/lib/qp/index.js
new file mode 100644
index 0000000..6bf6f08
--- /dev/null
+++ b/backend/node_modules/nodemailer/lib/qp/index.js
@@ -0,0 +1,219 @@
+'use strict';
+
+const Transform = require('stream').Transform;
+
+/**
+ * Encodes a Buffer into a Quoted-Printable encoded string
+ *
+ * @param {Buffer} buffer Buffer to convert
+ * @returns {String} Quoted-Printable encoded string
+ */
+function encode(buffer) {
+    if (typeof buffer === 'string') {
+        buffer = Buffer.from(buffer, 'utf-8');
+    }
+
+    // usable characters that do not need encoding
+    let ranges = [
+        // https://tools.ietf.org/html/rfc2045#section-6.7
+        [0x09], // <TAB>
+        [0x0a], // <LF>
+        [0x0d], // <CR>
+        [0x20, 0x3c], // <SP>!"#$%&'()*+,-./0123456789:;
+        [0x3e, 0x7e] // >?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_`abcdefghijklmnopqrstuvwxyz{|}
+    ];
+    let result = '';
+    let ord;
+
+    for (let i = 0, len = buffer.length; i < len; i++) {
+        ord = buffer[i];
+        // if the char is in allowed range, then keep as is, unless it is a WS in the end of a line
+        if (checkRanges(ord, ranges) && !((ord === 0x20 || ord === 0x09) && (i === len - 1 || buffer[i + 1] === 0x0a || buffer[i + 1] === 0x0d))) {
+            result += String.fromCharCode(ord);
+            continue;
+        }
+        result += '=' + (ord < 0x10 ? '0' : '') + ord.toString(16).toUpperCase();
+    }
+
+    return result;
+}
+
+/**
+ * Adds soft line breaks to a Quoted-Printable string
+ *
+ * @param {String} str Quoted-Printable encoded string that might need line wrapping
+ * @param {Number} [lineLength=76] Maximum allowed length for a line
+ * @returns {String} Soft-wrapped Quoted-Printable encoded string
+ */
+function wrap(str, lineLength) {
+    str = (str || '').toString();
+    lineLength = lineLength || 76;
+
+    if (str.length <= lineLength) {
+        return str;
+    }
+
+    let pos = 0;
+    let len = str.length;
+    let match, code, line;
+    let lineMargin = Math.floor(lineLength / 3);
+    let result = '';
+
+    // insert soft linebreaks where needed
+    while (pos < len) {
+        line = str.substr(pos, lineLength);
+        if ((match = line.match(/\r\n/))) {
+            line = line.substr(0, match.index + match[0].length);
+            result += line;
+            pos += line.length;
+            continue;
+        }
+
+        if (line.substr(-1) === '\n') {
+            // nothing to change here
+            result += line;
+            pos += line.length;
+            continue;
+        } else if ((match = line.substr(-lineMargin).match(/\n.*?$/))) {
+            // truncate to nearest line break
+            line = line.substr(0, line.length - (match[0].length - 1));
+            result += line;
+            pos += line.length;
+            continue;
+        } else if (line.length > lineLength - lineMargin && (match = line.substr(-lineMargin).match(/[ \t.,!?][^ \t.,!?]*$/))) {
+            // truncate to nearest space
+            line = line.substr(0, line.length - (match[0].length - 1));
+        } else if (line.match(/[=][\da-f]{0,2}$/i)) {
+            // push incomplete encoding sequences to the next line
+            if ((match = line.match(/[=][\da-f]{0,1}$/i))) {
+                line = line.substr(0, line.length - match[0].length);
+            }
+
+            // ensure that utf-8 sequences are not split
+            while (line.length > 3 && line.length < len - pos && !line.match(/^(?:=[\da-f]{2}){1,4}$/i) && (match = line.match(/[=][\da-f]{2}$/gi))) {
+                code = parseInt(match[0].substr(1, 2), 16);
+                if (code < 128) {
+                    break;
+                }
+
+                line = line.substr(0, line.length - 3);
+
+                if (code >= 0xc0) {
+                    break;
+                }
+            }
+        }
+
+        if (pos + line.length < len && line.substr(-1) !== '\n') {
+            if (line.length === lineLength && line.match(/[=][\da-f]{2}$/i)) {
+                line = line.substr(0, line.length - 3);
+            } else if (line.length === lineLength) {
+                line = line.substr(0, line.length - 1);
+            }
+            pos += line.length;
+            line += '=\r\n';
+        } else {
+            pos += line.length;
+        }
+
+        result += line;
+    }
+
+    return result;
+}
+
+/**
+ * Helper function to check if a number is inside provided ranges
+ *
+ * @param {Number} nr Number to check for
+ * @param {Array} ranges An Array of allowed values
+ * @returns {Boolean} True if the value was found inside allowed ranges, false otherwise
+ */
+function checkRanges(nr, ranges) {
+    for (let i = ranges.length - 1; i >= 0; i--) {
+        if (!ranges[i].length) {
+            continue;
+        }
+        if (ranges[i].length === 1 && nr === ranges[i][0]) {
+            return true;
+        }
+        if (ranges[i].length === 2 && nr >= ranges[i][0] && nr <= ranges[i][1]) {
+            return true;
+        }
+    }
+    return false;
+}
+
+/**
+ * Creates a transform stream for encoding data to Quoted-Printable encoding
+ *
+ * @constructor
+ * @param {Object} options Stream options
+ * @param {Number} [options.lineLength=76] Maximum length for lines, set to false to disable wrapping
+ */
+class Encoder extends Transform {
+    constructor(options) {
+        super();
+
+        // init Transform
+        this.options = options || {};
+
+        if (this.options.lineLength !== false) {
+            this.options.lineLength = this.options.lineLength || 76;
+        }
+
+        this._curLine = '';
+
+        this.inputBytes = 0;
+        this.outputBytes = 0;
+    }
+
+    _transform(chunk, encoding, done) {
+        let qp;
+
+        if (encoding !== 'buffer') {
+            chunk = Buffer.from(chunk, encoding);
+        }
+
+        if (!chunk || !chunk.length) {
+            return done();
+        }
+
+        this.inputBytes += chunk.length;
+
+        if (this.options.lineLength) {
+            qp = this._curLine + encode(chunk);
+            qp = wrap(qp, this.options.lineLength);
+            qp = qp.replace(/(^|\n)([^\n]*)$/, (match, lineBreak, lastLine) => {
+                this._curLine = lastLine;
+                return lineBreak;
+            });
+
+            if (qp) {
+                this.outputBytes += qp.length;
+                this.push(qp);
+            }
+        } else {
+            qp = encode(chunk);
+            this.outputBytes += qp.length;
+            this.push(qp, 'ascii');
+        }
+
+        done();
+    }
+
+    _flush(done) {
+        if (this._curLine) {
+            this.outputBytes += this._curLine.length;
+            this.push(this._curLine, 'ascii');
+        }
+        done();
+    }
+}
+
+// expose to the world
+module.exports = {
+    encode,
+    wrap,
+    Encoder
+};
diff --git a/backend/node_modules/nodemailer/lib/sendmail-transport/index.js b/backend/node_modules/nodemailer/lib/sendmail-transport/index.js
new file mode 100644
index 0000000..b1cc13b
--- /dev/null
+++ b/backend/node_modules/nodemailer/lib/sendmail-transport/index.js
@@ -0,0 +1,210 @@
+'use strict';
+
+const spawn = require('child_process').spawn;
+const packageData = require('../../package.json');
+const shared = require('../shared');
+
+/**
+ * Generates a Transport object for Sendmail
+ *
+ * Possible options can be the following:
+ *
+ *  * **path** optional path to sendmail binary
+ *  * **newline** either 'windows' or 'unix'
+ *  * **args** an array of arguments for the sendmail binary
+ *
+ * @constructor
+ * @param {Object} optional config parameter for Sendmail
+ */
+class SendmailTransport {
+    constructor(options) {
+        options = options || {};
+
+        // use a reference to spawn for mocking purposes
+        this._spawn = spawn;
+
+        this.options = options || {};
+
+        this.name = 'Sendmail';
+        this.version = packageData.version;
+
+        this.path = 'sendmail';
+        this.args = false;
+        this.winbreak = false;
+
+        this.logger = shared.getLogger(this.options, {
+            component: this.options.component || 'sendmail'
+        });
+
+        if (options) {
+            if (typeof options === 'string') {
+                this.path = options;
+            } else if (typeof options === 'object') {
+                if (options.path) {
+                    this.path = options.path;
+                }
+                if (Array.isArray(options.args)) {
+                    this.args = options.args;
+                }
+                this.winbreak = ['win', 'windows', 'dos', '\r\n'].includes((options.newline || '').toString().toLowerCase());
+            }
+        }
+    }
+
+    /**
+     * <p>Compiles a mailcomposer message and forwards it to handler that sends it.</p>
+     *
+     * @param {Object} emailMessage MailComposer object
+     * @param {Function} callback Callback function to run when the sending is completed
+     */
+    send(mail, done) {
+        // Sendmail strips this header line by itself
+        mail.message.keepBcc = true;
+
+        let envelope = mail.data.envelope || mail.message.getEnvelope();
+        let messageId = mail.message.messageId();
+        let args;
+        let sendmail;
+        let returned;
+
+        const hasInvalidAddresses = []
+            .concat(envelope.from || [])
+            .concat(envelope.to || [])
+            .some(addr => /^-/.test(addr));
+        if (hasInvalidAddresses) {
+            return done(new Error('Can not send mail. Invalid envelope addresses.'));
+        }
+
+        if (this.args) {
+            // force -i to keep single dots
+            args = ['-i'].concat(this.args).concat(envelope.to);
+        } else {
+            args = ['-i'].concat(envelope.from ? ['-f', envelope.from] : []).concat(envelope.to);
+        }
+
+        let callback = err => {
+            if (returned) {
+                // ignore any additional responses, already done
+                return;
+            }
+            returned = true;
+            if (typeof done === 'function') {
+                if (err) {
+                    return done(err);
+                } else {
+                    return done(null, {
+                        envelope: mail.data.envelope || mail.message.getEnvelope(),
+                        messageId,
+                        response: 'Messages queued for delivery'
+                    });
+                }
+            }
+        };
+
+        try {
+            sendmail = this._spawn(this.path, args);
+        } catch (E) {
+            this.logger.error(
+                {
+                    err: E,
+                    tnx: 'spawn',
+                    messageId
+                },
+                'Error occurred while spawning sendmail. %s',
+                E.message
+            );
+            return callback(E);
+        }
+
+        if (sendmail) {
+            sendmail.on('error', err => {
+                this.logger.error(
+                    {
+                        err,
+                        tnx: 'spawn',
+                        messageId
+                    },
+                    'Error occurred when sending message %s. %s',
+                    messageId,
+                    err.message
+                );
+                callback(err);
+            });
+
+            sendmail.once('exit', code => {
+                if (!code) {
+                    return callback();
+                }
+                let err;
+                if (code === 127) {
+                    err = new Error('Sendmail command not found, process exited with code ' + code);
+                } else {
+                    err = new Error('Sendmail exited with code ' + code);
+                }
+
+                this.logger.error(
+                    {
+                        err,
+                        tnx: 'stdin',
+                        messageId
+                    },
+                    'Error sending message %s to sendmail. %s',
+                    messageId,
+                    err.message
+                );
+                callback(err);
+            });
+            sendmail.once('close', callback);
+
+            sendmail.stdin.on('error', err => {
+                this.logger.error(
+                    {
+                        err,
+                        tnx: 'stdin',
+                        messageId
+                    },
+                    'Error occurred when piping message %s to sendmail. %s',
+                    messageId,
+                    err.message
+                );
+                callback(err);
+            });
+
+            let recipients = [].concat(envelope.to || []);
+            if (recipients.length > 3) {
+                recipients.push('...and ' + recipients.splice(2).length + ' more');
+            }
+            this.logger.info(
+                {
+                    tnx: 'send',
+                    messageId
+                },
+                'Sending message %s to <%s>',
+                messageId,
+                recipients.join(', ')
+            );
+
+            let sourceStream = mail.message.createReadStream();
+            sourceStream.once('error', err => {
+                this.logger.error(
+                    {
+                        err,
+                        tnx: 'stdin',
+                        messageId
+                    },
+                    'Error occurred when generating message %s. %s',
+                    messageId,
+                    err.message
+                );
+                sendmail.kill('SIGINT'); // do not deliver the message
+                callback(err);
+            });
+
+            sourceStream.pipe(sendmail.stdin);
+        } else {
+            return callback(new Error('sendmail was not found'));
+        }
+    }
+}
+
+module.exports = SendmailTransport;
diff --git a/backend/node_modules/nodemailer/lib/ses-transport/index.js b/backend/node_modules/nodemailer/lib/ses-transport/index.js
new file mode 100644
index 0000000..d2e2ccf
--- /dev/null
+++ b/backend/node_modules/nodemailer/lib/ses-transport/index.js
@@ -0,0 +1,234 @@
+'use strict';
+
+const EventEmitter = require('events');
+const packageData = require('../../package.json');
+const shared = require('../shared');
+const LeWindows = require('../mime-node/le-windows');
+const MimeNode = require('../mime-node');
+
+/**
+ * Generates a Transport object for AWS SES
+ *
+ * @constructor
+ * @param {Object} optional config parameter
+ */
+class SESTransport extends EventEmitter {
+    constructor(options) {
+        super();
+        options = options || {};
+
+        this.options = options || {};
+        this.ses = this.options.SES;
+
+        this.name = 'SESTransport';
+        this.version = packageData.version;
+
+        this.logger = shared.getLogger(this.options, {
+            component: this.options.component || 'ses-transport'
+        });
+    }
+
+    getRegion(cb) {
+        if (this.ses.sesClient.config && typeof this.ses.sesClient.config.region === 'function') {
+            // promise
+            return this.ses.sesClient.config
+                .region()
+                .then(region => cb(null, region))
+                .catch(err => cb(err));
+        }
+        return cb(null, false);
+    }
+
+    /**
+     * Compiles a mailcomposer message and forwards it to SES
+     *
+     * @param {Object} emailMessage MailComposer object
+     * @param {Function} callback Callback function to run when the sending is completed
+     */
+    send(mail, callback) {
+        let statObject = {
+            ts: Date.now(),
+            pending: true
+        };
+
+        let fromHeader = mail.message._headers.find(header => /^from$/i.test(header.key));
+        if (fromHeader) {
+            let mimeNode = new MimeNode('text/plain');
+            fromHeader = mimeNode._convertAddresses(mimeNode._parseAddresses(fromHeader.value));
+        }
+
+        let envelope = mail.data.envelope || mail.message.getEnvelope();
+        let messageId = mail.message.messageId();
+
+        let recipients = [].concat(envelope.to || []);
+        if (recipients.length > 3) {
+            recipients.push('...and ' + recipients.splice(2).length + ' more');
+        }
+        this.logger.info(
+            {
+                tnx: 'send',
+                messageId
+            },
+            'Sending message %s to <%s>',
+            messageId,
+            recipients.join(', ')
+        );
+
+        let getRawMessage = next => {
+            // do not use Message-ID and Date in DKIM signature
+            if (!mail.data._dkim) {
+                mail.data._dkim = {};
+            }
+            if (mail.data._dkim.skipFields && typeof mail.data._dkim.skipFields === 'string') {
+                mail.data._dkim.skipFields += ':date:message-id';
+            } else {
+                mail.data._dkim.skipFields = 'date:message-id';
+            }
+
+            let sourceStream = mail.message.createReadStream();
+            let stream = sourceStream.pipe(new LeWindows());
+            let chunks = [];
+            let chunklen = 0;
+
+            stream.on('readable', () => {
+                let chunk;
+                while ((chunk = stream.read()) !== null) {
+                    chunks.push(chunk);
+                    chunklen += chunk.length;
+                }
+            });
+
+            sourceStream.once('error', err => stream.emit('error', err));
+
+            stream.once('error', err => {
+                next(err);
+            });
+
+            stream.once('end', () => next(null, Buffer.concat(chunks, chunklen)));
+        };
+
+        setImmediate(() =>
+            getRawMessage((err, raw) => {
+                if (err) {
+                    this.logger.error(
+                        {
+                            err,
+                            tnx: 'send',
+                            messageId
+                        },
+                        'Failed creating message for %s. %s',
+                        messageId,
+                        err.message
+                    );
+                    statObject.pending = false;
+                    return callback(err);
+                }
+
+                let sesMessage = {
+                    Content: {
+                        Raw: {
+                            // required
+                            Data: raw // required
+                        }
+                    },
+                    FromEmailAddress: fromHeader ? fromHeader : envelope.from,
+                    Destination: {
+                        ToAddresses: envelope.to
+                    }
+                };
+
+                Object.keys(mail.data.ses || {}).forEach(key => {
+                    sesMessage[key] = mail.data.ses[key];
+                });
+
+                this.getRegion((err, region) => {
+                    if (err || !region) {
+                        region = 'us-east-1';
+                    }
+
+                    const command = new this.ses.SendEmailCommand(sesMessage);
+                    const sendPromise = this.ses.sesClient.send(command);
+
+                    sendPromise
+                        .then(data => {
+                            if (region === 'us-east-1') {
+                                region = 'email';
+                            }
+
+                            statObject.pending = true;
+                            callback(null, {
+                                envelope: {
+                                    from: envelope.from,
+                                    to: envelope.to
+                                },
+                                messageId: '<' + data.MessageId + (!/@/.test(data.MessageId) ? '@' + region + '.amazonses.com' : '') + '>',
+                                response: data.MessageId,
+                                raw
+                            });
+                        })
+                        .catch(err => {
+                            this.logger.error(
+                                {
+                                    err,
+                                    tnx: 'send'
+                                },
+                                'Send error for %s: %s',
+                                messageId,
+                                err.message
+                            );
+                            statObject.pending = false;
+                            callback(err);
+                        });
+                });
+            })
+        );
+    }
+
+    /**
+     * Verifies SES configuration
+     *
+     * @param {Function} callback Callback function
+     */
+    verify(callback) {
+        let promise;
+        if (!callback) {
+            promise = new Promise((resolve, reject) => {
+                callback = shared.callbackPromise(resolve, reject);
+            });
+        }
+
+        const cb = err => {
+            if (err && !['InvalidParameterValue', 'MessageRejected'].includes(err.code || err.Code || err.name)) {
+                return callback(err);
+            }
+            return callback(null, true);
+        };
+
+        const sesMessage = {
+            Content: {
+                Raw: {
+                    Data: Buffer.from('From: <invalid@invalid>\r\nTo: <invalid@invalid>\r\n Subject: Invalid\r\n\r\nInvalid')
+                }
+            },
+            FromEmailAddress: 'invalid@invalid',
+            Destination: {
+                ToAddresses: ['invalid@invalid']
+            }
+        };
+
+        this.getRegion((err, region) => {
+            if (err || !region) {
+                region = 'us-east-1';
+            }
+
+            const command = new this.ses.SendEmailCommand(sesMessage);
+            const sendPromise = this.ses.sesClient.send(command);
+
+            sendPromise.then(data => cb(null, data)).catch(err => cb(err));
+        });
+
+        return promise;
+    }
+}
+
+module.exports = SESTransport;
diff --git a/backend/node_modules/nodemailer/lib/shared/index.js b/backend/node_modules/nodemailer/lib/shared/index.js
new file mode 100644
index 0000000..19ace08
--- /dev/null
+++ b/backend/node_modules/nodemailer/lib/shared/index.js
@@ -0,0 +1,710 @@
+/* eslint no-console: 0 */
+
+'use strict';
+
+const urllib = require('url');
+const util = require('util');
+const fs = require('fs');
+const nmfetch = require('../fetch');
+const dns = require('dns');
+const net = require('net');
+const os = require('os');
+
+const DNS_TTL = 5 * 60 * 1000;
+
+let networkInterfaces;
+try {
+    networkInterfaces = os.networkInterfaces();
+} catch (err) {
+    // fails on some systems
+}
+
+module.exports.networkInterfaces = networkInterfaces;
+
+const isFamilySupported = (family, allowInternal) => {
+    let networkInterfaces = module.exports.networkInterfaces;
+    if (!networkInterfaces) {
+        // hope for the best
+        return true;
+    }
+
+    const familySupported =
+        // crux that replaces Object.values(networkInterfaces) as Object.values is not supported in nodejs v6
+        Object.keys(networkInterfaces)
+            .map(key => networkInterfaces[key])
+            // crux that replaces .flat() as it is not supported in older Node versions (v10 and older)
+            .reduce((acc, val) => acc.concat(val), [])
+            .filter(i => !i.internal || allowInternal)
+            .filter(i => i.family === 'IPv' + family || i.family === family).length > 0;
+
+    return familySupported;
+};
+
+const resolver = (family, hostname, options, callback) => {
+    options = options || {};
+    const familySupported = isFamilySupported(family, options.allowInternalNetworkInterfaces);
+
+    if (!familySupported) {
+        return callback(null, []);
+    }
+
+    const resolver = dns.Resolver ? new dns.Resolver(options) : dns;
+    resolver['resolve' + family](hostname, (err, addresses) => {
+        if (err) {
+            switch (err.code) {
+                case dns.NODATA:
+                case dns.NOTFOUND:
+                case dns.NOTIMP:
+                case dns.SERVFAIL:
+                case dns.CONNREFUSED:
+                case dns.REFUSED:
+                case 'EAI_AGAIN':
+                    return callback(null, []);
+            }
+            return callback(err);
+        }
+        return callback(null, Array.isArray(addresses) ? addresses : [].concat(addresses || []));
+    });
+};
+
+const dnsCache = (module.exports.dnsCache = new Map());
+
+const formatDNSValue = (value, extra) => {
+    if (!value) {
+        return Object.assign({}, extra || {});
+    }
+
+    return Object.assign(
+        {
+            servername: value.servername,
+            host:
+                !value.addresses || !value.addresses.length
+                    ? null
+                    : value.addresses.length === 1
+                    ? value.addresses[0]
+                    : value.addresses[Math.floor(Math.random() * value.addresses.length)]
+        },
+        extra || {}
+    );
+};
+
+module.exports.resolveHostname = (options, callback) => {
+    options = options || {};
+
+    if (!options.host && options.servername) {
+        options.host = options.servername;
+    }
+
+    if (!options.host || net.isIP(options.host)) {
+        // nothing to do here
+        let value = {
+            addresses: [options.host],
+            servername: options.servername || false
+        };
+        return callback(
+            null,
+            formatDNSValue(value, {
+                cached: false
+            })
+        );
+    }
+
+    let cached;
+    if (dnsCache.has(options.host)) {
+        cached = dnsCache.get(options.host);
+
+        if (!cached.expires || cached.expires >= Date.now()) {
+            return callback(
+                null,
+                formatDNSValue(cached.value, {
+                    cached: true
+                })
+            );
+        }
+    }
+
+    resolver(4, options.host, options, (err, addresses) => {
+        if (err) {
+            if (cached) {
+                // ignore error, use expired value
+                return callback(
+                    null,
+                    formatDNSValue(cached.value, {
+                        cached: true,
+                        error: err
+                    })
+                );
+            }
+            return callback(err);
+        }
+
+        if (addresses && addresses.length) {
+            let value = {
+                addresses,
+                servername: options.servername || options.host
+            };
+
+            dnsCache.set(options.host, {
+                value,
+                expires: Date.now() + (options.dnsTtl || DNS_TTL)
+            });
+
+            return callback(
+                null,
+                formatDNSValue(value, {
+                    cached: false
+                })
+            );
+        }
+
+        resolver(6, options.host, options, (err, addresses) => {
+            if (err) {
+                if (cached) {
+                    // ignore error, use expired value
+                    return callback(
+                        null,
+                        formatDNSValue(cached.value, {
+                            cached: true,
+                            error: err
+                        })
+                    );
+                }
+                return callback(err);
+            }
+
+            if (addresses && addresses.length) {
+                let value = {
+                    addresses,
+                    servername: options.servername || options.host
+                };
+
+                dnsCache.set(options.host, {
+                    value,
+                    expires: Date.now() + (options.dnsTtl || DNS_TTL)
+                });
+
+                return callback(
+                    null,
+                    formatDNSValue(value, {
+                        cached: false
+                    })
+                );
+            }
+
+            try {
+                dns.lookup(options.host, { all: true }, (err, addresses) => {
+                    if (err) {
+                        if (cached) {
+                            // ignore error, use expired value
+                            return callback(
+                                null,
+                                formatDNSValue(cached.value, {
+                                    cached: true,
+                                    error: err
+                                })
+                            );
+                        }
+                        return callback(err);
+                    }
+
+                    let address = addresses
+                        ? addresses
+                              .filter(addr => isFamilySupported(addr.family))
+                              .map(addr => addr.address)
+                              .shift()
+                        : false;
+
+                    if (addresses && addresses.length && !address) {
+                        // there are addresses but none can be used
+                        console.warn(`Failed to resolve IPv${addresses[0].family} addresses with current network`);
+                    }
+
+                    if (!address && cached) {
+                        // nothing was found, fallback to cached value
+                        return callback(
+                            null,
+                            formatDNSValue(cached.value, {
+                                cached: true
+                            })
+                        );
+                    }
+
+                    let value = {
+                        addresses: address ? [address] : [options.host],
+                        servername: options.servername || options.host
+                    };
+
+                    dnsCache.set(options.host, {
+                        value,
+                        expires: Date.now() + (options.dnsTtl || DNS_TTL)
+                    });
+
+                    return callback(
+                        null,
+                        formatDNSValue(value, {
+                            cached: false
+                        })
+                    );
+                });
+            } catch (err) {
+                if (cached) {
+                    // ignore error, use expired value
+                    return callback(
+                        null,
+                        formatDNSValue(cached.value, {
+                            cached: true,
+                            error: err
+                        })
+                    );
+                }
+                return callback(err);
+            }
+        });
+    });
+};
+/**
+ * Parses connection url to a structured configuration object
+ *
+ * @param {String} str Connection url
+ * @return {Object} Configuration object
+ */
+module.exports.parseConnectionUrl = str => {
+    str = str || '';
+    let options = {};
+
+    [urllib.parse(str, true)].forEach(url => {
+        let auth;
+
+        switch (url.protocol) {
+            case 'smtp:':
+                options.secure = false;
+                break;
+            case 'smtps:':
+                options.secure = true;
+                break;
+            case 'direct:':
+                options.direct = true;
+                break;
+        }
+
+        if (!isNaN(url.port) && Number(url.port)) {
+            options.port = Number(url.port);
+        }
+
+        if (url.hostname) {
+            options.host = url.hostname;
+        }
+
+        if (url.auth) {
+            auth = url.auth.split(':');
+
+            if (!options.auth) {
+                options.auth = {};
+            }
+
+            options.auth.user = auth.shift();
+            options.auth.pass = auth.join(':');
+        }
+
+        Object.keys(url.query || {}).forEach(key => {
+            let obj = options;
+            let lKey = key;
+            let value = url.query[key];
+
+            if (!isNaN(value)) {
+                value = Number(value);
+            }
+
+            switch (value) {
+                case 'true':
+                    value = true;
+                    break;
+                case 'false':
+                    value = false;
+                    break;
+            }
+
+            // tls is nested object
+            if (key.indexOf('tls.') === 0) {
+                lKey = key.substr(4);
+                if (!options.tls) {
+                    options.tls = {};
+                }
+                obj = options.tls;
+            } else if (key.indexOf('.') >= 0) {
+                // ignore nested properties besides tls
+                return;
+            }
+
+            if (!(lKey in obj)) {
+                obj[lKey] = value;
+            }
+        });
+    });
+
+    return options;
+};
+
+module.exports._logFunc = (logger, level, defaults, data, message, ...args) => {
+    let entry = {};
+
+    Object.keys(defaults || {}).forEach(key => {
+        if (key !== 'level') {
+            entry[key] = defaults[key];
+        }
+    });
+
+    Object.keys(data || {}).forEach(key => {
+        if (key !== 'level') {
+            entry[key] = data[key];
+        }
+    });
+
+    logger[level](entry, message, ...args);
+};
+
+/**
+ * Returns a bunyan-compatible logger interface. Uses either provided logger or
+ * creates a default console logger
+ *
+ * @param {Object} [options] Options object that might include 'logger' value
+ * @return {Object} bunyan compatible logger
+ */
+module.exports.getLogger = (options, defaults) => {
+    options = options || {};
+
+    let response = {};
+    let levels = ['trace', 'debug', 'info', 'warn', 'error', 'fatal'];
+
+    if (!options.logger) {
+        // use vanity logger
+        levels.forEach(level => {
+            response[level] = () => false;
+        });
+        return response;
+    }
+
+    let logger = options.logger;
+
+    if (options.logger === true) {
+        // create console logger
+        logger = createDefaultLogger(levels);
+    }
+
+    levels.forEach(level => {
+        response[level] = (data, message, ...args) => {
+            module.exports._logFunc(logger, level, defaults, data, message, ...args);
+        };
+    });
+
+    return response;
+};
+
+/**
+ * Wrapper for creating a callback that either resolves or rejects a promise
+ * based on input
+ *
+ * @param {Function} resolve Function to run if callback is called
+ * @param {Function} reject Function to run if callback ends with an error
+ */
+module.exports.callbackPromise = (resolve, reject) =>
+    function () {
+        let args = Array.from(arguments);
+        let err = args.shift();
+        if (err) {
+            reject(err);
+        } else {
+            resolve(...args);
+        }
+    };
+
+module.exports.parseDataURI = uri => {
+    if (typeof uri !== 'string') {
+        return null;
+    }
+
+    // Early return for non-data URIs to avoid unnecessary processing
+    if (!uri.startsWith('data:')) {
+        return null;
+    }
+
+    // Find the first comma safely - this prevents ReDoS
+    const commaPos = uri.indexOf(',');
+    if (commaPos === -1) {
+        return null;
+    }
+
+    const data = uri.substring(commaPos + 1);
+    const metaStr = uri.substring('data:'.length, commaPos);
+
+    let encoding;
+    const metaEntries = metaStr.split(';');
+
+    if (metaEntries.length > 0) {
+        const lastEntry = metaEntries[metaEntries.length - 1].toLowerCase().trim();
+        // Only recognize valid encoding types to prevent manipulation
+        if (['base64', 'utf8', 'utf-8'].includes(lastEntry) && lastEntry.indexOf('=') === -1) {
+            encoding = lastEntry;
+            metaEntries.pop();
+        }
+    }
+
+    const contentType = metaEntries.length > 0 ? metaEntries.shift() : 'application/octet-stream';
+    const params = {};
+
+    for (let i = 0; i < metaEntries.length; i++) {
+        const entry = metaEntries[i];
+        const sepPos = entry.indexOf('=');
+        if (sepPos > 0) {
+            // Ensure there's a key before the '='
+            const key = entry.substring(0, sepPos).trim();
+            const value = entry.substring(sepPos + 1).trim();
+            if (key) {
+                params[key] = value;
+            }
+        }
+    }
+
+    // Decode data based on encoding with proper error handling
+    let bufferData;
+    try {
+        if (encoding === 'base64') {
+            bufferData = Buffer.from(data, 'base64');
+        } else {
+            try {
+                bufferData = Buffer.from(decodeURIComponent(data));
+            } catch (decodeError) {
+                bufferData = Buffer.from(data);
+            }
+        }
+    } catch (bufferError) {
+        bufferData = Buffer.alloc(0);
+    }
+
+    return {
+        data: bufferData,
+        encoding: encoding || null,
+        contentType: contentType || 'application/octet-stream',
+        params
+    };
+};
+
+/**
+ * Resolves a String or a Buffer value for content value. Useful if the value
+ * is a Stream or a file or an URL. If the value is a Stream, overwrites
+ * the stream object with the resolved value (you can't stream a value twice).
+ *
+ * This is useful when you want to create a plugin that needs a content value,
+ * for example the `html` or `text` value as a String or a Buffer but not as
+ * a file path or an URL.
+ *
+ * @param {Object} data An object or an Array you want to resolve an element for
+ * @param {String|Number} key Property name or an Array index
+ * @param {Function} callback Callback function with (err, value)
+ */
+module.exports.resolveContent = (data, key, callback) => {
+    let promise;
+
+    if (!callback) {
+        promise = new Promise((resolve, reject) => {
+            callback = module.exports.callbackPromise(resolve, reject);
+        });
+    }
+
+    let content = (data && data[key] && data[key].content) || data[key];
+    let contentStream;
+    let encoding = ((typeof data[key] === 'object' && data[key].encoding) || 'utf8')
+        .toString()
+        .toLowerCase()
+        .replace(/[-_\s]/g, '');
+
+    if (!content) {
+        return callback(null, content);
+    }
+
+    if (typeof content === 'object') {
+        if (typeof content.pipe === 'function') {
+            return resolveStream(content, (err, value) => {
+                if (err) {
+                    return callback(err);
+                }
+                // we can't stream twice the same content, so we need
+                // to replace the stream object with the streaming result
+                if (data[key].content) {
+                    data[key].content = value;
+                } else {
+                    data[key] = value;
+                }
+                callback(null, value);
+            });
+        } else if (/^https?:\/\//i.test(content.path || content.href)) {
+            contentStream = nmfetch(content.path || content.href);
+            return resolveStream(contentStream, callback);
+        } else if (/^data:/i.test(content.path || content.href)) {
+            let parsedDataUri = module.exports.parseDataURI(content.path || content.href);
+
+            if (!parsedDataUri || !parsedDataUri.data) {
+                return callback(null, Buffer.from(0));
+            }
+            return callback(null, parsedDataUri.data);
+        } else if (content.path) {
+            return resolveStream(fs.createReadStream(content.path), callback);
+        }
+    }
+
+    if (typeof data[key].content === 'string' && !['utf8', 'usascii', 'ascii'].includes(encoding)) {
+        content = Buffer.from(data[key].content, encoding);
+    }
+
+    // default action, return as is
+    setImmediate(() => callback(null, content));
+
+    return promise;
+};
+
+/**
+ * Copies properties from source objects to target objects
+ */
+module.exports.assign = function (/* target, ... sources */) {
+    let args = Array.from(arguments);
+    let target = args.shift() || {};
+
+    args.forEach(source => {
+        Object.keys(source || {}).forEach(key => {
+            if (['tls', 'auth'].includes(key) && source[key] && typeof source[key] === 'object') {
+                // tls and auth are special keys that need to be enumerated separately
+                // other objects are passed as is
+                if (!target[key]) {
+                    // ensure that target has this key
+                    target[key] = {};
+                }
+                Object.keys(source[key]).forEach(subKey => {
+                    target[key][subKey] = source[key][subKey];
+                });
+            } else {
+                target[key] = source[key];
+            }
+        });
+    });
+    return target;
+};
+
+module.exports.encodeXText = str => {
+    // ! 0x21
+    // + 0x2B
+    // = 0x3D
+    // ~ 0x7E
+    if (!/[^\x21-\x2A\x2C-\x3C\x3E-\x7E]/.test(str)) {
+        return str;
+    }
+    let buf = Buffer.from(str);
+    let result = '';
+    for (let i = 0, len = buf.length; i < len; i++) {
+        let c = buf[i];
+        if (c < 0x21 || c > 0x7e || c === 0x2b || c === 0x3d) {
+            result += '+' + (c < 0x10 ? '0' : '') + c.toString(16).toUpperCase();
+        } else {
+            result += String.fromCharCode(c);
+        }
+    }
+    return result;
+};
+
+/**
+ * Streams a stream value into a Buffer
+ *
+ * @param {Object} stream Readable stream
+ * @param {Function} callback Callback function with (err, value)
+ */
+function resolveStream(stream, callback) {
+    let responded = false;
+    let chunks = [];
+    let chunklen = 0;
+
+    stream.on('error', err => {
+        if (responded) {
+            return;
+        }
+
+        responded = true;
+        callback(err);
+    });
+
+    stream.on('readable', () => {
+        let chunk;
+        while ((chunk = stream.read()) !== null) {
+            chunks.push(chunk);
+            chunklen += chunk.length;
+        }
+    });
+
+    stream.on('end', () => {
+        if (responded) {
+            return;
+        }
+        responded = true;
+
+        let value;
+
+        try {
+            value = Buffer.concat(chunks, chunklen);
+        } catch (E) {
+            return callback(E);
+        }
+        callback(null, value);
+    });
+}
+
+/**
+ * Generates a bunyan-like logger that prints to console
+ *
+ * @returns {Object} Bunyan logger instance
+ */
+function createDefaultLogger(levels) {
+    let levelMaxLen = 0;
+    let levelNames = new Map();
+    levels.forEach(level => {
+        if (level.length > levelMaxLen) {
+            levelMaxLen = level.length;
+        }
+    });
+
+    levels.forEach(level => {
+        let levelName = level.toUpperCase();
+        if (levelName.length < levelMaxLen) {
+            levelName += ' '.repeat(levelMaxLen - levelName.length);
+        }
+        levelNames.set(level, levelName);
+    });
+
+    let print = (level, entry, message, ...args) => {
+        let prefix = '';
+        if (entry) {
+            if (entry.tnx === 'server') {
+                prefix = 'S: ';
+            } else if (entry.tnx === 'client') {
+                prefix = 'C: ';
+            }
+
+            if (entry.sid) {
+                prefix = '[' + entry.sid + '] ' + prefix;
+            }
+
+            if (entry.cid) {
+                prefix = '[#' + entry.cid + '] ' + prefix;
+            }
+        }
+
+        message = util.format(message, ...args);
+        message.split(/\r?\n/).forEach(line => {
+            console.log('[%s] %s %s', new Date().toISOString().substr(0, 19).replace(/T/, ' '), levelNames.get(level), prefix + line);
+        });
+    };
+
+    let logger = {};
+    levels.forEach(level => {
+        logger[level] = print.bind(null, level);
+    });
+
+    return logger;
+}
diff --git a/backend/node_modules/nodemailer/lib/smtp-connection/data-stream.js b/backend/node_modules/nodemailer/lib/smtp-connection/data-stream.js
new file mode 100644
index 0000000..5efa087
--- /dev/null
+++ b/backend/node_modules/nodemailer/lib/smtp-connection/data-stream.js
@@ -0,0 +1,108 @@
+'use strict';
+
+const stream = require('stream');
+const Transform = stream.Transform;
+
+/**
+ * Escapes dots in the beginning of lines. Ends the stream with <CR><LF>.<CR><LF>
+ * Also makes sure that only <CR><LF> sequences are used for linebreaks
+ *
+ * @param {Object} options Stream options
+ */
+class DataStream extends Transform {
+    constructor(options) {
+        super(options);
+        // init Transform
+        this.options = options || {};
+        this._curLine = '';
+
+        this.inByteCount = 0;
+        this.outByteCount = 0;
+        this.lastByte = false;
+    }
+
+    /**
+     * Escapes dots
+     */
+    _transform(chunk, encoding, done) {
+        let chunks = [];
+        let chunklen = 0;
+        let i,
+            len,
+            lastPos = 0;
+        let buf;
+
+        if (!chunk || !chunk.length) {
+            return done();
+        }
+
+        if (typeof chunk === 'string') {
+            chunk = Buffer.from(chunk);
+        }
+
+        this.inByteCount += chunk.length;
+
+        for (i = 0, len = chunk.length; i < len; i++) {
+            if (chunk[i] === 0x2e) {
+                // .
+                if ((i && chunk[i - 1] === 0x0a) || (!i && (!this.lastByte || this.lastByte === 0x0a))) {
+                    buf = chunk.slice(lastPos, i + 1);
+                    chunks.push(buf);
+                    chunks.push(Buffer.from('.'));
+                    chunklen += buf.length + 1;
+                    lastPos = i + 1;
+                }
+            } else if (chunk[i] === 0x0a) {
+                // .
+                if ((i && chunk[i - 1] !== 0x0d) || (!i && this.lastByte !== 0x0d)) {
+                    if (i > lastPos) {
+                        buf = chunk.slice(lastPos, i);
+                        chunks.push(buf);
+                        chunklen += buf.length + 2;
+                    } else {
+                        chunklen += 2;
+                    }
+                    chunks.push(Buffer.from('\r\n'));
+                    lastPos = i + 1;
+                }
+            }
+        }
+
+        if (chunklen) {
+            // add last piece
+            if (lastPos < chunk.length) {
+                buf = chunk.slice(lastPos);
+                chunks.push(buf);
+                chunklen += buf.length;
+            }
+
+            this.outByteCount += chunklen;
+            this.push(Buffer.concat(chunks, chunklen));
+        } else {
+            this.outByteCount += chunk.length;
+            this.push(chunk);
+        }
+
+        this.lastByte = chunk[chunk.length - 1];
+        done();
+    }
+
+    /**
+     * Finalizes the stream with a dot on a single line
+     */
+    _flush(done) {
+        let buf;
+        if (this.lastByte === 0x0a) {
+            buf = Buffer.from('.\r\n');
+        } else if (this.lastByte === 0x0d) {
+            buf = Buffer.from('\n.\r\n');
+        } else {
+            buf = Buffer.from('\r\n.\r\n');
+        }
+        this.outByteCount += buf.length;
+        this.push(buf);
+        done();
+    }
+}
+
+module.exports = DataStream;
diff --git a/backend/node_modules/nodemailer/lib/smtp-connection/http-proxy-client.js b/backend/node_modules/nodemailer/lib/smtp-connection/http-proxy-client.js
new file mode 100644
index 0000000..a59bb49
--- /dev/null
+++ b/backend/node_modules/nodemailer/lib/smtp-connection/http-proxy-client.js
@@ -0,0 +1,143 @@
+'use strict';
+
+/**
+ * Minimal HTTP/S proxy client
+ */
+
+const net = require('net');
+const tls = require('tls');
+const urllib = require('url');
+
+/**
+ * Establishes proxied connection to destinationPort
+ *
+ * httpProxyClient("http://localhost:3128/", 80, "google.com", function(err, socket){
+ *     socket.write("GET / HTTP/1.0\r\n\r\n");
+ * });
+ *
+ * @param {String} proxyUrl proxy configuration, etg "http://proxy.host:3128/"
+ * @param {Number} destinationPort Port to open in destination host
+ * @param {String} destinationHost Destination hostname
+ * @param {Function} callback Callback to run with the rocket object once connection is established
+ */
+function httpProxyClient(proxyUrl, destinationPort, destinationHost, callback) {
+    let proxy = urllib.parse(proxyUrl);
+
+    // create a socket connection to the proxy server
+    let options;
+    let connect;
+    let socket;
+
+    options = {
+        host: proxy.hostname,
+        port: Number(proxy.port) ? Number(proxy.port) : proxy.protocol === 'https:' ? 443 : 80
+    };
+
+    if (proxy.protocol === 'https:') {
+        // we can use untrusted proxies as long as we verify actual SMTP certificates
+        options.rejectUnauthorized = false;
+        connect = tls.connect.bind(tls);
+    } else {
+        connect = net.connect.bind(net);
+    }
+
+    // Error harness for initial connection. Once connection is established, the responsibility
+    // to handle errors is passed to whoever uses this socket
+    let finished = false;
+    let tempSocketErr = err => {
+        if (finished) {
+            return;
+        }
+        finished = true;
+        try {
+            socket.destroy();
+        } catch (E) {
+            // ignore
+        }
+        callback(err);
+    };
+
+    let timeoutErr = () => {
+        let err = new Error('Proxy socket timed out');
+        err.code = 'ETIMEDOUT';
+        tempSocketErr(err);
+    };
+
+    socket = connect(options, () => {
+        if (finished) {
+            return;
+        }
+
+        let reqHeaders = {
+            Host: destinationHost + ':' + destinationPort,
+            Connection: 'close'
+        };
+        if (proxy.auth) {
+            reqHeaders['Proxy-Authorization'] = 'Basic ' + Buffer.from(proxy.auth).toString('base64');
+        }
+
+        socket.write(
+            // HTTP method
+            'CONNECT ' +
+                destinationHost +
+                ':' +
+                destinationPort +
+                ' HTTP/1.1\r\n' +
+                // HTTP request headers
+                Object.keys(reqHeaders)
+                    .map(key => key + ': ' + reqHeaders[key])
+                    .join('\r\n') +
+                // End request
+                '\r\n\r\n'
+        );
+
+        let headers = '';
+        let onSocketData = chunk => {
+            let match;
+            let remainder;
+
+            if (finished) {
+                return;
+            }
+
+            headers += chunk.toString('binary');
+            if ((match = headers.match(/\r\n\r\n/))) {
+                socket.removeListener('data', onSocketData);
+
+                remainder = headers.substr(match.index + match[0].length);
+                headers = headers.substr(0, match.index);
+                if (remainder) {
+                    socket.unshift(Buffer.from(remainder, 'binary'));
+                }
+
+                // proxy connection is now established
+                finished = true;
+
+                // check response code
+                match = headers.match(/^HTTP\/\d+\.\d+ (\d+)/i);
+                if (!match || (match[1] || '').charAt(0) !== '2') {
+                    try {
+                        socket.destroy();
+                    } catch (E) {
+                        // ignore
+                    }
+                    return callback(new Error('Invalid response from proxy' + ((match && ': ' + match[1]) || '')));
+                }
+
+                socket.removeListener('error', tempSocketErr);
+                socket.removeListener('timeout', timeoutErr);
+                socket.setTimeout(0);
+
+                return callback(null, socket);
+            }
+        };
+        socket.on('data', onSocketData);
+    });
+
+    socket.setTimeout(httpProxyClient.timeout || 30 * 1000);
+    socket.on('timeout', timeoutErr);
+
+    socket.once('error', tempSocketErr);
+}
+
+module.exports = httpProxyClient;
diff --git a/backend/node_modules/nodemailer/lib/smtp-connection/index.js b/backend/node_modules/nodemailer/lib/smtp-connection/index.js
new file mode 100644
index 0000000..b8e03eb
--- /dev/null
+++ b/backend/node_modules/nodemailer/lib/smtp-connection/index.js
@@ -0,0 +1,1836 @@
+'use strict';
+
+const packageInfo = require('../../package.json');
+const EventEmitter = require('events').EventEmitter;
+const net = require('net');
+const tls = require('tls');
+const os = require('os');
+const crypto = require('crypto');
+const DataStream = require('./data-stream');
+const PassThrough = require('stream').PassThrough;
+const shared = require('../shared');
+
+// default timeout values in ms
+const CONNECTION_TIMEOUT = 2 * 60 * 1000; // how much to wait for the connection to be established
+const SOCKET_TIMEOUT = 10 * 60 * 1000; // how much to wait for socket inactivity before disconnecting the client
+const GREETING_TIMEOUT = 30 * 1000; // how much to wait after connection is established but SMTP greeting is not receieved
+const DNS_TIMEOUT = 30 * 1000; // how much to wait for resolveHostname
+
+/**
+ * Generates a SMTP connection object
+ *
+ * Optional options object takes the following possible properties:
+ *
+ *  * **port** - is the port to connect to (defaults to 587 or 465)
+ *  * **host** - is the hostname or IP address to connect to (defaults to 'localhost')
+ *  * **secure** - use SSL
+ *  * **ignoreTLS** - ignore server support for STARTTLS
+ *  * **requireTLS** - forces the client to use STARTTLS
+ *  * **name** - the name of the client server
+ *  * **localAddress** - outbound address to bind to (see: http://nodejs.org/api/net.html#net_net_connect_options_connectionlistener)
+ *  * **greetingTimeout** - Time to wait in ms until greeting message is received from the server (defaults to 10000)
+ *  * **connectionTimeout** - how many milliseconds to wait for the connection to establish
+ *  * **socketTimeout** - Time of inactivity until the connection is closed (defaults to 1 hour)
+ *  * **dnsTimeout** - Time to wait in ms for the DNS requests to be resolved (defaults to 30 seconds)
+ *  * **lmtp** - if true, uses LMTP instead of SMTP protocol
+ *  * **logger** - bunyan compatible logger interface
+ *  * **debug** - if true pass SMTP traffic to the logger
+ *  * **tls** - options for createCredentials
+ *  * **socket** - existing socket to use instead of creating a new one (see: http://nodejs.org/api/net.html#net_class_net_socket)
+ *  * **secured** - boolean indicates that the provided socket has already been upgraded to tls
+ *
+ * @constructor
+ * @namespace SMTP Client module
+ * @param {Object} [options] Option properties
+ */
+class SMTPConnection extends EventEmitter {
+    constructor(options) {
+        super(options);
+
+        this.id = crypto.randomBytes(8).toString('base64').replace(/\W/g, '');
+        this.stage = 'init';
+
+        this.options = options || {};
+
+        this.secureConnection = !!this.options.secure;
+        this.alreadySecured = !!this.options.secured;
+
+        this.port = Number(this.options.port) || (this.secureConnection ? 465 : 587);
+        this.host = this.options.host || 'localhost';
+
+        this.servername = this.options.servername ? this.options.servername : !net.isIP(this.host) ? this.host : false;
+
+        this.allowInternalNetworkInterfaces = this.options.allowInternalNetworkInterfaces || false;
+
+        if (typeof this.options.secure === 'undefined' && this.port === 465) {
+            // if secure option is not set but port is 465, then default to secure
+            this.secureConnection = true;
+        }
+
+        this.name = this.options.name || this._getHostname();
+
+        this.logger = shared.getLogger(this.options, {
+            component: this.options.component || 'smtp-connection',
+            sid: this.id
+        });
+
+        this.customAuth = new Map();
+        Object.keys(this.options.customAuth || {}).forEach(key => {
+            let mapKey = (key || '').toString().trim().toUpperCase();
+            if (!mapKey) {
+                return;
+            }
+            this.customAuth.set(mapKey, this.options.customAuth[key]);
+        });
+
+        /**
+         * Expose version nr, just for the reference
+         * @type {String}
+         */
+        this.version = packageInfo.version;
+
+        /**
+         * If true, then the user is authenticated
+         * @type {Boolean}
+         */
+        this.authenticated = false;
+
+        /**
+         * If set to true, this instance is no longer active
+         * @private
+         */
+        this.destroyed = false;
+
+        /**
+         * Defines if the current connection is secure or not. If not,
+         * STARTTLS can be used if available
+         * @private
+         */
+        this.secure = !!this.secureConnection;
+
+        /**
+         * Store incomplete messages coming from the server
+         * @private
+         */
+        this._remainder = '';
+
+        /**
+         * Unprocessed responses from the server
+         * @type {Array}
+         */
+        this._responseQueue = [];
+
+        this.lastServerResponse = false;
+
+        /**
+         * The socket connecting to the server
+         * @public
+         */
+        this._socket = false;
+
+        /**
+         * Lists supported auth mechanisms
+         * @private
+         */
+        this._supportedAuth = [];
+
+        /**
+         * Set to true, if EHLO response includes "AUTH".
+         * If false then authentication is not tried
+         */
+        this.allowsAuth = false;
+
+        /**
+         * Includes current envelope (from, to)
+         * @private
+         */
+        this._envelope = false;
+
+        /**
+         * Lists supported extensions
+         * @private
+         */
+        this._supportedExtensions = [];
+
+        /**
+         * Defines the maximum allowed size for a single message
+         * @private
+         */
+        this._maxAllowedSize = 0;
+
+        /**
+         * Function queue to run if a data chunk comes from the server
+         * @private
+         */
+        this._responseActions = [];
+        this._recipientQueue = [];
+
+        /**
+         * Timeout variable for waiting the greeting
+         * @private
+         */
+        this._greetingTimeout = false;
+
+        /**
+         * Timeout variable for waiting the connection to start
+         * @private
+         */
+        this._connectionTimeout = false;
+
+        /**
+         * If the socket is deemed already closed
+         * @private
+         */
+        this._destroyed = false;
+
+        /**
+         * If the socket is already being closed
+         * @private
+         */
+        this._closing = false;
+
+        /**
+         * Callbacks for socket's listeners
+         */
+        this._onSocketData = chunk => this._onData(chunk);
+        this._onSocketError = error => this._onError(error, 'ESOCKET', false, 'CONN');
+        this._onSocketClose = () => this._onClose();
+        this._onSocketEnd = () => this._onEnd();
+        this._onSocketTimeout = () => this._onTimeout();
+    }
+
+    /**
+     * Creates a connection to a SMTP server and sets up connection
+     * listener
+     */
+    connect(connectCallback) {
+        if (typeof connectCallback === 'function') {
+            this.once('connect', () => {
+                this.logger.debug(
+                    {
+                        tnx: 'smtp'
+                    },
+                    'SMTP handshake finished'
+                );
+                connectCallback();
+            });
+
+            const isDestroyedMessage = this._isDestroyedMessage('connect');
+            if (isDestroyedMessage) {
+                return connectCallback(this._formatError(isDestroyedMessage, 'ECONNECTION', false, 'CONN'));
+            }
+        }
+
+        let opts = {
+            port: this.port,
+            host: this.host,
+            allowInternalNetworkInterfaces: this.allowInternalNetworkInterfaces,
+            timeout: this.options.dnsTimeout || DNS_TIMEOUT
+        };
+
+        if (this.options.localAddress) {
+            opts.localAddress = this.options.localAddress;
+        }
+
+        let setupConnectionHandlers = () => {
+            this._connectionTimeout = setTimeout(() => {
+                this._onError('Connection timeout', 'ETIMEDOUT', false, 'CONN');
+            }, this.options.connectionTimeout || CONNECTION_TIMEOUT);
+
+            this._socket.on('error', this._onSocketError);
+        };
+
+        if (this.options.connection) {
+            // connection is already opened
+            this._socket = this.options.connection;
+            setupConnectionHandlers();
+
+            if (this.secureConnection && !this.alreadySecured) {
+                setImmediate(() =>
+                    this._upgradeConnection(err => {
+                        if (err) {
+                            this._onError(new Error('Error initiating TLS - ' + (err.message || err)), 'ETLS', false, 'CONN');
+                            return;
+                        }
+                        this._onConnect();
+                    })
+                );
+            } else {
+                setImmediate(() => this._onConnect());
+            }
+            return;
+        } else if (this.options.socket) {
+            // socket object is set up but not yet connected
+            this._socket = this.options.socket;
+            return shared.resolveHostname(opts, (err, resolved) => {
+                if (err) {
+                    return setImmediate(() => this._onError(err, 'EDNS', false, 'CONN'));
+                }
+                this.logger.debug(
+                    {
+                        tnx: 'dns',
+                        source: opts.host,
+                        resolved: resolved.host,
+                        cached: !!resolved.cached
+                    },
+                    'Resolved %s as %s [cache %s]',
+                    opts.host,
+                    resolved.host,
+                    resolved.cached ? 'hit' : 'miss'
+                );
+                Object.keys(resolved).forEach(key => {
+                    if (key.charAt(0) !== '_' && resolved[key]) {
+                        opts[key] = resolved[key];
+                    }
+                });
+                try {
+                    this._socket.connect(this.port, this.host, () => {
+                        this._socket.setKeepAlive(true);
+                        this._onConnect();
+                    });
+                    setupConnectionHandlers();
+                } catch (E) {
+                    return setImmediate(() => this._onError(E, 'ECONNECTION', false, 'CONN'));
+                }
+            });
+        } else if (this.secureConnection) {
+            // connect using tls
+            if (this.options.tls) {
+                Object.keys(this.options.tls).forEach(key => {
+                    opts[key] = this.options.tls[key];
+                });
+            }
+
+            // ensure servername for SNI
+            if (this.servername && !opts.servername) {
+                opts.servername = this.servername;
+            }
+
+            return shared.resolveHostname(opts, (err, resolved) => {
+                if (err) {
+                    return setImmediate(() => this._onError(err, 'EDNS', false, 'CONN'));
+                }
+                this.logger.debug(
+                    {
+                        tnx: 'dns',
+                        source: opts.host,
+                        resolved: resolved.host,
+                        cached: !!resolved.cached
+                    },
+                    'Resolved %s as %s [cache %s]',
+                    opts.host,
+                    resolved.host,
+                    resolved.cached ? 'hit' : 'miss'
+                );
+                Object.keys(resolved).forEach(key => {
+                    if (key.charAt(0) !== '_' && resolved[key]) {
+                        opts[key] = resolved[key];
+                    }
+                });
+                try {
+                    this._socket = tls.connect(opts, () => {
+                        this._socket.setKeepAlive(true);
+                        this._onConnect();
+                    });
+                    setupConnectionHandlers();
+                } catch (E) {
+                    return setImmediate(() => this._onError(E, 'ECONNECTION', false, 'CONN'));
+                }
+            });
+        } else {
+            // connect using plaintext
+            return shared.resolveHostname(opts, (err, resolved) => {
+                if (err) {
+                    return setImmediate(() => this._onError(err, 'EDNS', false, 'CONN'));
+                }
+                this.logger.debug(
+                    {
+                        tnx: 'dns',
+                        source: opts.host,
+                        resolved: resolved.host,
+                        cached: !!resolved.cached
+                    },
+                    'Resolved %s as %s [cache %s]',
+                    opts.host,
+                    resolved.host,
+                    resolved.cached ? 'hit' : 'miss'
+                );
+                Object.keys(resolved).forEach(key => {
+                    if (key.charAt(0) !== '_' && resolved[key]) {
+                        opts[key] = resolved[key];
+                    }
+                });
+                try {
+                    this._socket = net.connect(opts, () => {
+                        this._socket.setKeepAlive(true);
+                        this._onConnect();
+                    });
+                    setupConnectionHandlers();
+                } catch (E) {
+                    return setImmediate(() => this._onError(E, 'ECONNECTION', false, 'CONN'));
+                }
+            });
+        }
+    }
+
+    /**
+     * Sends QUIT
+     */
+    quit() {
+        this._sendCommand('QUIT');
+        this._responseActions.push(this.close);
+    }
+
+    /**
+     * Closes the connection to the server
+     */
+    close() {
+        clearTimeout(this._connectionTimeout);
+        clearTimeout(this._greetingTimeout);
+        this._responseActions = [];
+
+        // allow to run this function only once
+        if (this._closing) {
+            return;
+        }
+        this._closing = true;
+
+        let closeMethod = 'end';
+
+        if (this.stage === 'init') {
+            // Close the socket immediately when connection timed out
+            closeMethod = 'destroy';
+        }
+
+        this.logger.debug(
+            {
+                tnx: 'smtp'
+            },
+            'Closing connection to the server using "%s"',
+            closeMethod
+        );
+
+        let socket = (this._socket && this._socket.socket) || this._socket;
+
+        if (socket && !socket.destroyed) {
+            try {
+                socket[closeMethod]();
+            } catch (E) {
+                // just ignore
+            }
+        }
+
+        this._destroy();
+    }
+
+    /**
+     * Authenticate user
+     */
+    login(authData, callback) {
+        const isDestroyedMessage = this._isDestroyedMessage('login');
+        if (isDestroyedMessage) {
+            return callback(this._formatError(isDestroyedMessage, 'ECONNECTION', false, 'API'));
+        }
+
+        this._auth = authData || {};
+        // Select SASL authentication method
+        this._authMethod = (this._auth.method || '').toString().trim().toUpperCase() || false;
+
+        if (!this._authMethod && this._auth.oauth2 && !this._auth.credentials) {
+            this._authMethod = 'XOAUTH2';
+        } else if (!this._authMethod || (this._authMethod === 'XOAUTH2' && !this._auth.oauth2)) {
+            // use first supported
+            this._authMethod = (this._supportedAuth[0] || 'PLAIN').toUpperCase().trim();
+        }
+
+        if (this._authMethod !== 'XOAUTH2' && (!this._auth.credentials || !this._auth.credentials.user || !this._auth.credentials.pass)) {
+            if ((this._auth.user && this._auth.pass) || this.customAuth.has(this._authMethod)) {
+                this._auth.credentials = {
+                    user: this._auth.user,
+                    pass: this._auth.pass,
+                    options: this._auth.options
+                };
+            } else {
+                return callback(this._formatError('Missing credentials for "' + this._authMethod + '"', 'EAUTH', false, 'API'));
+            }
+        }
+
+        if (this.customAuth.has(this._authMethod)) {
+            let handler = this.customAuth.get(this._authMethod);
+            let lastResponse;
+            let returned = false;
+
+            let resolve = () => {
+                if (returned) {
+                    return;
+                }
+                returned = true;
+                this.logger.info(
+                    {
+                        tnx: 'smtp',
+                        username: this._auth.user,
+                        action: 'authenticated',
+                        method: this._authMethod
+                    },
+                    'User %s authenticated',
+                    JSON.stringify(this._auth.user)
+                );
+                this.authenticated = true;
+                callback(null, true);
+            };
+
+            let reject = err => {
+                if (returned) {
+                    return;
+                }
+                returned = true;
+                callback(this._formatError(err, 'EAUTH', lastResponse, 'AUTH ' + this._authMethod));
+            };
+
+            let handlerResponse = handler({
+                auth: this._auth,
+                method: this._authMethod,
+
+                extensions: [].concat(this._supportedExtensions),
+                authMethods: [].concat(this._supportedAuth),
+                maxAllowedSize: this._maxAllowedSize || false,
+
+                sendCommand: (cmd, done) => {
+                    let promise;
+
+                    if (!done) {
+                        promise = new Promise((resolve, reject) => {
+                            done = shared.callbackPromise(resolve, reject);
+                        });
+                    }
+
+                    this._responseActions.push(str => {
+                        lastResponse = str;
+
+                        let codes = str.match(/^(\d+)(?:\s(\d+\.\d+\.\d+))?\s/);
+                        let data = {
+                            command: cmd,
+                            response: str
+                        };
+                        if (codes) {
+                            data.status = Number(codes[1]) || 0;
+                            if (codes[2]) {
+                                data.code = codes[2];
+                            }
+                            data.text = str.substr(codes[0].length);
+                        } else {
+                            data.text = str;
+                            data.status = 0; // just in case we need to perform numeric comparisons
+                        }
+                        done(null, data);
+                    });
+                    setImmediate(() => this._sendCommand(cmd));
+
+                    return promise;
+                },
+
+                resolve,
+                reject
+            });
+
+            if (handlerResponse && typeof handlerResponse.catch === 'function') {
+                // a promise was returned
+                handlerResponse.then(resolve).catch(reject);
+            }
+
+            return;
+        }
+
+        switch (this._authMethod) {
+            case 'XOAUTH2':
+                this._handleXOauth2Token(false, callback);
+                return;
+            case 'LOGIN':
+                this._responseActions.push(str => {
+                    this._actionAUTH_LOGIN_USER(str, callback);
+                });
+                this._sendCommand('AUTH LOGIN');
+                return;
+            case 'PLAIN':
+                this._responseActions.push(str => {
+                    this._actionAUTHComplete(str, callback);
+                });
+                this._sendCommand(
+                    'AUTH PLAIN ' +
+                        Buffer.from(
+                            //this._auth.user+'\u0000'+
+                            '\u0000' + // skip authorization identity as it causes problems with some servers
+                                this._auth.credentials.user +
+                                '\u0000' +
+                                this._auth.credentials.pass,
+                            'utf-8'
+                        ).toString('base64'),
+                    // log entry without passwords
+                    'AUTH PLAIN ' +
+                        Buffer.from(
+                            //this._auth.user+'\u0000'+
+                            '\u0000' + // skip authorization identity as it causes problems with some servers
+                                this._auth.credentials.user +
+                                '\u0000' +
+                                '/* secret */',
+                            'utf-8'
+                        ).toString('base64')
+                );
+                return;
+            case 'CRAM-MD5':
+                this._responseActions.push(str => {
+                    this._actionAUTH_CRAM_MD5(str, callback);
+                });
+                this._sendCommand('AUTH CRAM-MD5');
+                return;
+        }
+
+        return callback(this._formatError('Unknown authentication method "' + this._authMethod + '"', 'EAUTH', false, 'API'));
+    }
+
+    /**
+     * Sends a message
+     *
+     * @param {Object} envelope Envelope object, {from: addr, to: [addr]}
+     * @param {Object} message String, Buffer or a Stream
+     * @param {Function} callback Callback to return once sending is completed
+     */
+    send(envelope, message, done) {
+        if (!message) {
+            return done(this._formatError('Empty message', 'EMESSAGE', false, 'API'));
+        }
+
+        const isDestroyedMessage = this._isDestroyedMessage('send message');
+        if (isDestroyedMessage) {
+            return done(this._formatError(isDestroyedMessage, 'ECONNECTION', false, 'API'));
+        }
+
+        // reject larger messages than allowed
+        if (this._maxAllowedSize && envelope.size > this._maxAllowedSize) {
+            return setImmediate(() => {
+                done(this._formatError('Message size larger than allowed ' + this._maxAllowedSize, 'EMESSAGE', false, 'MAIL FROM'));
+            });
+        }
+
+        // ensure that callback is only called once
+        let returned = false;
+        let callback = function () {
+            if (returned) {
+                return;
+            }
+            returned = true;
+
+            done(...arguments);
+        };
+
+        if (typeof message.on === 'function') {
+            message.on('error', err => callback(this._formatError(err, 'ESTREAM', false, 'API')));
+        }
+
+        let startTime = Date.now();
+        this._setEnvelope(envelope, (err, info) => {
+            if (err) {
+                // create passthrough stream to consume to prevent OOM
+                let stream = new PassThrough();
+                if (typeof message.pipe === 'function') {
+                    message.pipe(stream);
+                } else {
+                    stream.write(message);
+                    stream.end();
+                }
+
+                return callback(err);
+            }
+            let envelopeTime = Date.now();
+            let stream = this._createSendStream((err, str) => {
+                if (err) {
+                    return callback(err);
+                }
+
+                info.envelopeTime = envelopeTime - startTime;
+                info.messageTime = Date.now() - envelopeTime;
+                info.messageSize = stream.outByteCount;
+                info.response = str;
+
+                return callback(null, info);
+            });
+            if (typeof message.pipe === 'function') {
+                message.pipe(stream);
+            } else {
+                stream.write(message);
+                stream.end();
+            }
+        });
+    }
+
+    /**
+     * Resets connection state
+     *
+     * @param {Function} callback Callback to return once connection is reset
+     */
+    reset(callback) {
+        this._sendCommand('RSET');
+        this._responseActions.push(str => {
+            if (str.charAt(0) !== '2') {
+                return callback(this._formatError('Could not reset session state. response=' + str, 'EPROTOCOL', str, 'RSET'));
+            }
+            this._envelope = false;
+            return callback(null, true);
+        });
+    }
+
+    /**
+     * Connection listener that is run when the connection to
+     * the server is opened
+     *
+     * @event
+     */
+    _onConnect() {
+        clearTimeout(this._connectionTimeout);
+
+        this.logger.info(
+            {
+                tnx: 'network',
+                localAddress: this._socket.localAddress,
+                localPort: this._socket.localPort,
+                remoteAddress: this._socket.remoteAddress,
+                remotePort: this._socket.remotePort
+            },
+            '%s established to %s:%s',
+            this.secure ? 'Secure connection' : 'Connection',
+            this._socket.remoteAddress,
+            this._socket.remotePort
+        );
+
+        if (this._destroyed) {
+            // Connection was established after we already had canceled it
+            this.close();
+            return;
+        }
+
+        this.stage = 'connected';
+
+        // clear existing listeners for the socket
+        this._socket.removeListener('data', this._onSocketData);
+        this._socket.removeListener('timeout', this._onSocketTimeout);
+        this._socket.removeListener('close', this._onSocketClose);
+        this._socket.removeListener('end', this._onSocketEnd);
+
+        this._socket.on('data', this._onSocketData);
+        this._socket.once('close', this._onSocketClose);
+        this._socket.once('end', this._onSocketEnd);
+
+        this._socket.setTimeout(this.options.socketTimeout || SOCKET_TIMEOUT);
+        this._socket.on('timeout', this._onSocketTimeout);
+
+        this._greetingTimeout = setTimeout(() => {
+            // if still waiting for greeting, give up
+            if (this._socket && !this._destroyed && this._responseActions[0] === this._actionGreeting) {
+                this._onError('Greeting never received', 'ETIMEDOUT', false, 'CONN');
+            }
+        }, this.options.greetingTimeout || GREETING_TIMEOUT);
+
+        this._responseActions.push(this._actionGreeting);
+
+        // we have a 'data' listener set up so resume socket if it was paused
+        this._socket.resume();
+    }
+
+    /**
+     * 'data' listener for data coming from the server
+     *
+     * @event
+     * @param {Buffer} chunk Data chunk coming from the server
+     */
+    _onData(chunk) {
+        if (this._destroyed || !chunk || !chunk.length) {
+            return;
+        }
+
+        let data = (chunk || '').toString('binary');
+        let lines = (this._remainder + data).split(/\r?\n/);
+        let lastline;
+
+        this._remainder = lines.pop();
+
+        for (let i = 0, len = lines.length; i < len; i++) {
+            if (this._responseQueue.length) {
+                lastline = this._responseQueue[this._responseQueue.length - 1];
+                if (/^\d+-/.test(lastline.split('\n').pop())) {
+                    this._responseQueue[this._responseQueue.length - 1] += '\n' + lines[i];
+                    continue;
+                }
+            }
+            this._responseQueue.push(lines[i]);
+        }
+
+        if (this._responseQueue.length) {
+            lastline = this._responseQueue[this._responseQueue.length - 1];
+            if (/^\d+-/.test(lastline.split('\n').pop())) {
+                return;
+            }
+        }
+
+        this._processResponse();
+    }
+
+    /**
+     * 'error' listener for the socket
+     *
+     * @event
+     * @param {Error} err Error object
+     * @param {String} type Error name
+     */
+    _onError(err, type, data, command) {
+        clearTimeout(this._connectionTimeout);
+        clearTimeout(this._greetingTimeout);
+
+        if (this._destroyed) {
+            // just ignore, already closed
+            // this might happen when a socket is canceled because of reached timeout
+            // but the socket timeout error itself receives only after
+            return;
+        }
+
+        err = this._formatError(err, type, data, command);
+
+        this.logger.error(data, err.message);
+
+        this.emit('error', err);
+        this.close();
+    }
+
+    _formatError(message, type, response, command) {
+        let err;
+
+        if (/Error\]$/i.test(Object.prototype.toString.call(message))) {
+            err = message;
+        } else {
+            err = new Error(message);
+        }
+
+        if (type && type !== 'Error') {
+            err.code = type;
+        }
+
+        if (response) {
+            err.response = response;
+            err.message += ': ' + response;
+        }
+
+        let responseCode = (typeof response === 'string' && Number((response.match(/^\d+/) || [])[0])) || false;
+        if (responseCode) {
+            err.responseCode = responseCode;
+        }
+
+        if (command) {
+            err.command = command;
+        }
+
+        return err;
+    }
+
+    /**
+     * 'close' listener for the socket
+     *
+     * @event
+     */
+    _onClose() {
+        let serverResponse = false;
+
+        if (this._remainder && this._remainder.trim()) {
+            if (this.options.debug || this.options.transactionLog) {
+                this.logger.debug(
+                    {
+                        tnx: 'server'
+                    },
+                    this._remainder.replace(/\r?\n$/, '')
+                );
+            }
+            this.lastServerResponse = serverResponse = this._remainder.trim();
+        }
+
+        this.logger.info(
+            {
+                tnx: 'network'
+            },
+            'Connection closed'
+        );
+
+        if (this.upgrading && !this._destroyed) {
+            return this._onError(new Error('Connection closed unexpectedly'), 'ETLS', serverResponse, 'CONN');
+        } else if (![this._actionGreeting, this.close].includes(this._responseActions[0]) && !this._destroyed) {
+            return this._onError(new Error('Connection closed unexpectedly'), 'ECONNECTION', serverResponse, 'CONN');
+        } else if (/^[45]\d{2}\b/.test(serverResponse)) {
+            return this._onError(new Error('Connection closed unexpectedly'), 'ECONNECTION', serverResponse, 'CONN');
+        }
+
+        this._destroy();
+    }
+
+    /**
+     * 'end' listener for the socket
+     *
+     * @event
+     */
+    _onEnd() {
+        if (this._socket && !this._socket.destroyed) {
+            this._socket.destroy();
+        }
+    }
+
+    /**
+     * 'timeout' listener for the socket
+     *
+     * @event
+     */
+    _onTimeout() {
+        return this._onError(new Error('Timeout'), 'ETIMEDOUT', false, 'CONN');
+    }
+
+    /**
+     * Destroys the client, emits 'end'
+     */
+    _destroy() {
+        if (this._destroyed) {
+            return;
+        }
+        this._destroyed = true;
+        this.emit('end');
+    }
+
+    /**
+     * Upgrades the connection to TLS
+     *
+     * @param {Function} callback Callback function to run when the connection
+     *        has been secured
+     */
+    _upgradeConnection(callback) {
+        // do not remove all listeners or it breaks node v0.10 as there's
+        // apparently a 'finish' event set that would be cleared as well
+
+        // we can safely keep 'error', 'end', 'close' etc. events
+        this._socket.removeListener('data', this._onSocketData); // incoming data is going to be gibberish from this point onwards
+        this._socket.removeListener('timeout', this._onSocketTimeout); // timeout will be re-set for the new socket object
+
+        let socketPlain = this._socket;
+        let opts = {
+            socket: this._socket,
+            host: this.host
+        };
+
+        Object.keys(this.options.tls || {}).forEach(key => {
+            opts[key] = this.options.tls[key];
+        });
+
+        // ensure servername for SNI
+        if (this.servername && !opts.servername) {
+            opts.servername = this.servername;
+        }
+
+        this.upgrading = true;
+        // tls.connect is not an asynchronous function however it may still throw errors and requires to be wrapped with try/catch
+        try {
+            this._socket = tls.connect(opts, () => {
+                this.secure = true;
+                this.upgrading = false;
+                this._socket.on('data', this._onSocketData);
+
+                socketPlain.removeListener('close', this._onSocketClose);
+                socketPlain.removeListener('end', this._onSocketEnd);
+
+                return callback(null, true);
+            });
+        } catch (err) {
+            return callback(err);
+        }
+
+        this._socket.on('error', this._onSocketError);
+        this._socket.once('close', this._onSocketClose);
+        this._socket.once('end', this._onSocketEnd);
+
+        this._socket.setTimeout(this.options.socketTimeout || SOCKET_TIMEOUT); // 10 min.
+        this._socket.on('timeout', this._onSocketTimeout);
+
+        // resume in case the socket was paused
+        socketPlain.resume();
+    }
+
+    /**
+     * Processes queued responses from the server
+     *
+     * @param {Boolean} force If true, ignores _processing flag
+     */
+    _processResponse() {
+        if (!this._responseQueue.length) {
+            return false;
+        }
+
+        let str = (this.lastServerResponse = (this._responseQueue.shift() || '').toString());
+
+        if (/^\d+-/.test(str.split('\n').pop())) {
+            // keep waiting for the final part of multiline response
+            return;
+        }
+
+        if (this.options.debug || this.options.transactionLog) {
+            this.logger.debug(
+                {
+                    tnx: 'server'
+                },
+                str.replace(/\r?\n$/, '')
+            );
+        }
+
+        if (!str.trim()) {
+            // skip unexpected empty lines
+            setImmediate(() => this._processResponse());
+        }
+
+        let action = this._responseActions.shift();
+
+        if (typeof action === 'function') {
+            action.call(this, str);
+            setImmediate(() => this._processResponse());
+        } else {
+            return this._onError(new Error('Unexpected Response'), 'EPROTOCOL', str, 'CONN');
+        }
+    }
+
+    /**
+     * Send a command to the server, append \r\n
+     *
+     * @param {String} str String to be sent to the server
+     * @param {String} logStr Optional string to be used for logging instead of the actual string
+     */
+    _sendCommand(str, logStr) {
+        if (this._destroyed) {
+            // Connection already closed, can't send any more data
+            return;
+        }
+
+        if (this._socket.destroyed) {
+            return this.close();
+        }
+
+        if (this.options.debug || this.options.transactionLog) {
+            this.logger.debug(
+                {
+                    tnx: 'client'
+                },
+                (logStr || str || '').toString().replace(/\r?\n$/, '')
+            );
+        }
+
+        this._socket.write(Buffer.from(str + '\r\n', 'utf-8'));
+    }
+
+    /**
+     * Initiates a new message by submitting envelope data, starting with
+     * MAIL FROM: command
+     *
+     * @param {Object} envelope Envelope object in the form of
+     *        {from:'...', to:['...']}
+     *        or
+     *        {from:{address:'...',name:'...'}, to:[address:'...',name:'...']}
+     */
+    _setEnvelope(envelope, callback) {
+        let args = [];
+        let useSmtpUtf8 = false;
+
+        this._envelope = envelope || {};
+        this._envelope.from = ((this._envelope.from && this._envelope.from.address) || this._envelope.from || '').toString().trim();
+
+        this._envelope.to = [].concat(this._envelope.to || []).map(to => ((to && to.address) || to || '').toString().trim());
+
+        if (!this._envelope.to.length) {
+            return callback(this._formatError('No recipients defined', 'EENVELOPE', false, 'API'));
+        }
+
+        if (this._envelope.from && /[\r\n<>]/.test(this._envelope.from)) {
+            return callback(this._formatError('Invalid sender ' + JSON.stringify(this._envelope.from), 'EENVELOPE', false, 'API'));
+        }
+
+        // check if the sender address uses only ASCII characters,
+        // otherwise require usage of SMTPUTF8 extension
+        if (/[\x80-\uFFFF]/.test(this._envelope.from)) {
+            useSmtpUtf8 = true;
+        }
+
+        for (let i = 0, len = this._envelope.to.length; i < len; i++) {
+            if (!this._envelope.to[i] || /[\r\n<>]/.test(this._envelope.to[i])) {
+                return callback(this._formatError('Invalid recipient ' + JSON.stringify(this._envelope.to[i]), 'EENVELOPE', false, 'API'));
+            }
+
+            // check if the recipients addresses use only ASCII characters,
+            // otherwise require usage of SMTPUTF8 extension
+            if (/[\x80-\uFFFF]/.test(this._envelope.to[i])) {
+                useSmtpUtf8 = true;
+            }
+        }
+
+        // clone the recipients array for latter manipulation
+        this._envelope.rcptQueue = JSON.parse(JSON.stringify(this._envelope.to || []));
+        this._envelope.rejected = [];
+        this._envelope.rejectedErrors = [];
+        this._envelope.accepted = [];
+
+        if (this._envelope.dsn) {
+            try {
+                this._envelope.dsn = this._setDsnEnvelope(this._envelope.dsn);
+            } catch (err) {
+                return callback(this._formatError('Invalid DSN ' + err.message, 'EENVELOPE', false, 'API'));
+            }
+        }
+
+        this._responseActions.push(str => {
+            this._actionMAIL(str, callback);
+        });
+
+        // If the server supports SMTPUTF8 and the envelope includes an internationalized
+        // email address then append SMTPUTF8 keyword to the MAIL FROM command
+        if (useSmtpUtf8 && this._supportedExtensions.includes('SMTPUTF8')) {
+            args.push('SMTPUTF8');
+            this._usingSmtpUtf8 = true;
+        }
+
+        // If the server supports 8BITMIME and the message might contain non-ascii bytes
+        // then append the 8BITMIME keyword to the MAIL FROM command
+        if (this._envelope.use8BitMime && this._supportedExtensions.includes('8BITMIME')) {
+            args.push('BODY=8BITMIME');
+            this._using8BitMime = true;
+        }
+
+        if (this._envelope.size && this._supportedExtensions.includes('SIZE')) {
+            args.push('SIZE=' + this._envelope.size);
+        }
+
+        // If the server supports DSN and the envelope includes an DSN prop
+        // then append DSN params to the MAIL FROM command
+        if (this._envelope.dsn && this._supportedExtensions.includes('DSN')) {
+            if (this._envelope.dsn.ret) {
+                args.push('RET=' + shared.encodeXText(this._envelope.dsn.ret));
+            }
+            if (this._envelope.dsn.envid) {
+                args.push('ENVID=' + shared.encodeXText(this._envelope.dsn.envid));
+            }
+        }
+
+        this._sendCommand('MAIL FROM:<' + this._envelope.from + '>' + (args.length ? ' ' + args.join(' ') : ''));
+    }
+
+    _setDsnEnvelope(params) {
+        let ret = (params.ret || params.return || '').toString().toUpperCase() || null;
+        if (ret) {
+            switch (ret) {
+                case 'HDRS':
+                case 'HEADERS':
+                    ret = 'HDRS';
+                    break;
+                case 'FULL':
+                case 'BODY':
+                    ret = 'FULL';
+                    break;
+            }
+        }
+
+        if (ret && !['FULL', 'HDRS'].includes(ret)) {
+            throw new Error('ret: ' + JSON.stringify(ret));
+        }
+
+        let envid = (params.envid || params.id || '').toString() || null;
+
+        let notify = params.notify || null;
+        if (notify) {
+            if (typeof notify === 'string') {
+                notify = notify.split(',');
+            }
+            notify = notify.map(n => n.trim().toUpperCase());
+            let validNotify = ['NEVER', 'SUCCESS', 'FAILURE', 'DELAY'];
+            let invaliNotify = notify.filter(n => !validNotify.includes(n));
+            if (invaliNotify.length || (notify.length > 1 && notify.includes('NEVER'))) {
+                throw new Error('notify: ' + JSON.stringify(notify.join(',')));
+            }
+            notify = notify.join(',');
+        }
+
+        let orcpt = (params.recipient || params.orcpt || '').toString() || null;
+        if (orcpt && orcpt.indexOf(';') < 0) {
+            orcpt = 'rfc822;' + orcpt;
+        }
+
+        return {
+            ret,
+            envid,
+            notify,
+            orcpt
+        };
+    }
+
+    _getDsnRcptToArgs() {
+        let args = [];
+        // If the server supports DSN and the envelope includes an DSN prop
+        // then append DSN params to the RCPT TO command
+        if (this._envelope.dsn && this._supportedExtensions.includes('DSN')) {
+            if (this._envelope.dsn.notify) {
+                args.push('NOTIFY=' + shared.encodeXText(this._envelope.dsn.notify));
+            }
+            if (this._envelope.dsn.orcpt) {
+                args.push('ORCPT=' + shared.encodeXText(this._envelope.dsn.orcpt));
+            }
+        }
+        return args.length ? ' ' + args.join(' ') : '';
+    }
+
+    _createSendStream(callback) {
+        let dataStream = new DataStream();
+        let logStream;
+
+        if (this.options.lmtp) {
+            this._envelope.accepted.forEach((recipient, i) => {
+                let final = i === this._envelope.accepted.length - 1;
+                this._responseActions.push(str => {
+                    this._actionLMTPStream(recipient, final, str, callback);
+                });
+            });
+        } else {
+            this._responseActions.push(str => {
+                this._actionSMTPStream(str, callback);
+            });
+        }
+
+        dataStream.pipe(this._socket, {
+            end: false
+        });
+
+        if (this.options.debug) {
+            logStream = new PassThrough();
+            logStream.on('readable', () => {
+                let chunk;
+                while ((chunk = logStream.read())) {
+                    this.logger.debug(
+                        {
+                            tnx: 'message'
+                        },
+                        chunk.toString('binary').replace(/\r?\n$/, '')
+                    );
+                }
+            });
+            dataStream.pipe(logStream);
+        }
+
+        dataStream.once('end', () => {
+            this.logger.info(
+                {
+                    tnx: 'message',
+                    inByteCount: dataStream.inByteCount,
+                    outByteCount: dataStream.outByteCount
+                },
+                '<%s bytes encoded mime message (source size %s bytes)>',
+                dataStream.outByteCount,
+                dataStream.inByteCount
+            );
+        });
+
+        return dataStream;
+    }
+
+    /** ACTIONS **/
+
+    /**
+     * Will be run after the connection is created and the server sends
+     * a greeting. If the incoming message starts with 220 initiate
+     * SMTP session by sending EHLO command
+     *
+     * @param {String} str Message from the server
+     */
+    _actionGreeting(str) {
+        clearTimeout(this._greetingTimeout);
+
+        if (str.substr(0, 3) !== '220') {
+            this._onError(new Error('Invalid greeting. response=' + str), 'EPROTOCOL', str, 'CONN');
+            return;
+        }
+
+        if (this.options.lmtp) {
+            this._responseActions.push(this._actionLHLO);
+            this._sendCommand('LHLO ' + this.name);
+        } else {
+            this._responseActions.push(this._actionEHLO);
+            this._sendCommand('EHLO ' + this.name);
+        }
+    }
+
+    /**
+     * Handles server response for LHLO command. If it yielded in
+     * error, emit 'error', otherwise treat this as an EHLO response
+     *
+     * @param {String} str Message from the server
+     */
+    _actionLHLO(str) {
+        if (str.charAt(0) !== '2') {
+            this._onError(new Error('Invalid LHLO. response=' + str), 'EPROTOCOL', str, 'LHLO');
+            return;
+        }
+
+        this._actionEHLO(str);
+    }
+
+    /**
+     * Handles server response for EHLO command. If it yielded in
+     * error, try HELO instead, otherwise initiate TLS negotiation
+     * if STARTTLS is supported by the server or move into the
+     * authentication phase.
+     *
+     * @param {String} str Message from the server
+     */
+    _actionEHLO(str) {
+        let match;
+
+        if (str.substr(0, 3) === '421') {
+            this._onError(new Error('Server terminates connection. response=' + str), 'ECONNECTION', str, 'EHLO');
+            return;
+        }
+
+        if (str.charAt(0) !== '2') {
+            if (this.options.requireTLS) {
+                this._onError(new Error('EHLO failed but HELO does not support required STARTTLS. response=' + str), 'ECONNECTION', str, 'EHLO');
+                return;
+            }
+
+            // Try HELO instead
+            this._responseActions.push(this._actionHELO);
+            this._sendCommand('HELO ' + this.name);
+            return;
+        }
+
+        this._ehloLines = str
+            .split(/\r?\n/)
+            .map(line => line.replace(/^\d+[ -]/, '').trim())
+            .filter(line => line)
+            .slice(1);
+
+        // Detect if the server supports STARTTLS
+        if (!this.secure && !this.options.ignoreTLS && (/[ -]STARTTLS\b/im.test(str) || this.options.requireTLS)) {
+            this._sendCommand('STARTTLS');
+            this._responseActions.push(this._actionSTARTTLS);
+            return;
+        }
+
+        // Detect if the server supports SMTPUTF8
+        if (/[ -]SMTPUTF8\b/im.test(str)) {
+            this._supportedExtensions.push('SMTPUTF8');
+        }
+
+        // Detect if the server supports DSN
+        if (/[ -]DSN\b/im.test(str)) {
+            this._supportedExtensions.push('DSN');
+        }
+
+        // Detect if the server supports 8BITMIME
+        if (/[ -]8BITMIME\b/im.test(str)) {
+            this._supportedExtensions.push('8BITMIME');
+        }
+
+        // Detect if the server supports PIPELINING
+        if (/[ -]PIPELINING\b/im.test(str)) {
+            this._supportedExtensions.push('PIPELINING');
+        }
+
+        // Detect if the server supports AUTH
+        if (/[ -]AUTH\b/i.test(str)) {
+            this.allowsAuth = true;
+        }
+
+        // Detect if the server supports PLAIN auth
+        if (/[ -]AUTH(?:(\s+|=)[^\n]*\s+|\s+|=)PLAIN/i.test(str)) {
+            this._supportedAuth.push('PLAIN');
+        }
+
+        // Detect if the server supports LOGIN auth
+        if (/[ -]AUTH(?:(\s+|=)[^\n]*\s+|\s+|=)LOGIN/i.test(str)) {
+            this._supportedAuth.push('LOGIN');
+        }
+
+        // Detect if the server supports CRAM-MD5 auth
+        if (/[ -]AUTH(?:(\s+|=)[^\n]*\s+|\s+|=)CRAM-MD5/i.test(str)) {
+            this._supportedAuth.push('CRAM-MD5');
+        }
+
+        // Detect if the server supports XOAUTH2 auth
+        if (/[ -]AUTH(?:(\s+|=)[^\n]*\s+|\s+|=)XOAUTH2/i.test(str)) {
+            this._supportedAuth.push('XOAUTH2');
+        }
+
+        // Detect if the server supports SIZE extensions (and the max allowed size)
+        if ((match = str.match(/[ -]SIZE(?:[ \t]+(\d+))?/im))) {
+            this._supportedExtensions.push('SIZE');
+            this._maxAllowedSize = Number(match[1]) || 0;
+        }
+
+        this.emit('connect');
+    }
+
+    /**
+     * Handles server response for HELO command. If it yielded in
+     * error, emit 'error', otherwise move into the authentication phase.
+     *
+     * @param {String} str Message from the server
+     */
+    _actionHELO(str) {
+        if (str.charAt(0) !== '2') {
+            this._onError(new Error('Invalid HELO. response=' + str), 'EPROTOCOL', str, 'HELO');
+            return;
+        }
+
+        // assume that authentication is enabled (most probably is not though)
+        this.allowsAuth = true;
+
+        this.emit('connect');
+    }
+
+    /**
+     * Handles server response for STARTTLS command. If there's an error
+     * try HELO instead, otherwise initiate TLS upgrade. If the upgrade
+     * succeedes restart the EHLO
+     *
+     * @param {String} str Message from the server
+     */
+    _actionSTARTTLS(str) {
+        if (str.charAt(0) !== '2') {
+            if (this.options.opportunisticTLS) {
+                this.logger.info(
+                    {
+                        tnx: 'smtp'
+                    },
+                    'Failed STARTTLS upgrade, continuing unencrypted'
+                );
+                return this.emit('connect');
+            }
+            this._onError(new Error('Error upgrading connection with STARTTLS'), 'ETLS', str, 'STARTTLS');
+            return;
+        }
+
+        this._upgradeConnection((err, secured) => {
+            if (err) {
+                this._onError(new Error('Error initiating TLS - ' + (err.message || err)), 'ETLS', false, 'STARTTLS');
+                return;
+            }
+
+            this.logger.info(
+                {
+                    tnx: 'smtp'
+                },
+                'Connection upgraded with STARTTLS'
+            );
+
+            if (secured) {
+                // restart session
+                if (this.options.lmtp) {
+                    this._responseActions.push(this._actionLHLO);
+                    this._sendCommand('LHLO ' + this.name);
+                } else {
+                    this._responseActions.push(this._actionEHLO);
+                    this._sendCommand('EHLO ' + this.name);
+                }
+            } else {
+                this.emit('connect');
+            }
+        });
+    }
+
+    /**
+     * Handle the response for AUTH LOGIN command. We are expecting
+     * '334 VXNlcm5hbWU6' (base64 for 'Username:'). Data to be sent as
+     * response needs to be base64 encoded username. We do not need
+     * exact match but settle with 334 response in general as some
+     * hosts invalidly use a longer message than VXNlcm5hbWU6
+     *
+     * @param {String} str Message from the server
+     */
+    _actionAUTH_LOGIN_USER(str, callback) {
+        if (!/^334[ -]/.test(str)) {
+            // expecting '334 VXNlcm5hbWU6'
+            callback(this._formatError('Invalid login sequence while waiting for "334 VXNlcm5hbWU6"', 'EAUTH', str, 'AUTH LOGIN'));
+            return;
+        }
+
+        this._responseActions.push(str => {
+            this._actionAUTH_LOGIN_PASS(str, callback);
+        });
+
+        this._sendCommand(Buffer.from(this._auth.credentials.user + '', 'utf-8').toString('base64'));
+    }
+
+    /**
+     * Handle the response for AUTH CRAM-MD5 command. We are expecting
+     * '334 <challenge string>'. Data to be sent as response needs to be
+     * base64 decoded challenge string, MD5 hashed using the password as
+     * a HMAC key, prefixed by the username and a space, and finally all
+     * base64 encoded again.
+     *
+     * @param {String} str Message from the server
+     */
+    _actionAUTH_CRAM_MD5(str, callback) {
+        let challengeMatch = str.match(/^334\s+(.+)$/);
+        let challengeString = '';
+
+        if (!challengeMatch) {
+            return callback(this._formatError('Invalid login sequence while waiting for server challenge string', 'EAUTH', str, 'AUTH CRAM-MD5'));
+        } else {
+            challengeString = challengeMatch[1];
+        }
+
+        // Decode from base64
+        let base64decoded = Buffer.from(challengeString, 'base64').toString('ascii'),
+            hmacMD5 = crypto.createHmac('md5', this._auth.credentials.pass);
+
+        hmacMD5.update(base64decoded);
+
+        let prepended = this._auth.credentials.user + ' ' + hmacMD5.digest('hex');
+
+        this._responseActions.push(str => {
+            this._actionAUTH_CRAM_MD5_PASS(str, callback);
+        });
+
+        this._sendCommand(
+            Buffer.from(prepended).toString('base64'),
+            // hidden hash for logs
+            Buffer.from(this._auth.credentials.user + ' /* secret */').toString('base64')
+        );
+    }
+
+    /**
+     * Handles the response to CRAM-MD5 authentication, if there's no error,
+     * the user can be considered logged in. Start waiting for a message to send
+     *
+     * @param {String} str Message from the server
+     */
+    _actionAUTH_CRAM_MD5_PASS(str, callback) {
+        if (!str.match(/^235\s+/)) {
+            return callback(this._formatError('Invalid login sequence while waiting for "235"', 'EAUTH', str, 'AUTH CRAM-MD5'));
+        }
+
+        this.logger.info(
+            {
+                tnx: 'smtp',
+                username: this._auth.user,
+                action: 'authenticated',
+                method: this._authMethod
+            },
+            'User %s authenticated',
+            JSON.stringify(this._auth.user)
+        );
+        this.authenticated = true;
+        callback(null, true);
+    }
+
+    /**
+     * Handle the response for AUTH LOGIN command. We are expecting
+     * '334 UGFzc3dvcmQ6' (base64 for 'Password:'). Data to be sent as
+     * response needs to be base64 encoded password.
+     *
+     * @param {String} str Message from the server
+     */
+    _actionAUTH_LOGIN_PASS(str, callback) {
+        if (!/^334[ -]/.test(str)) {
+            // expecting '334 UGFzc3dvcmQ6'
+            return callback(this._formatError('Invalid login sequence while waiting for "334 UGFzc3dvcmQ6"', 'EAUTH', str, 'AUTH LOGIN'));
+        }
+
+        this._responseActions.push(str => {
+            this._actionAUTHComplete(str, callback);
+        });
+
+        this._sendCommand(
+            Buffer.from((this._auth.credentials.pass || '').toString(), 'utf-8').toString('base64'),
+            // Hidden pass for logs
+            Buffer.from('/* secret */', 'utf-8').toString('base64')
+        );
+    }
+
+    /**
+     * Handles the response for authentication, if there's no error,
+     * the user can be considered logged in. Start waiting for a message to send
+     *
+     * @param {String} str Message from the server
+     */
+    _actionAUTHComplete(str, isRetry, callback) {
+        if (!callback && typeof isRetry === 'function') {
+            callback = isRetry;
+            isRetry = false;
+        }
+
+        if (str.substr(0, 3) === '334') {
+            this._responseActions.push(str => {
+                if (isRetry || this._authMethod !== 'XOAUTH2') {
+                    this._actionAUTHComplete(str, true, callback);
+                } else {
+                    // fetch a new OAuth2 access token
+                    setImmediate(() => this._handleXOauth2Token(true, callback));
+                }
+            });
+            this._sendCommand('');
+            return;
+        }
+
+        if (str.charAt(0) !== '2') {
+            this.logger.info(
+                {
+                    tnx: 'smtp',
+                    username: this._auth.user,
+                    action: 'authfail',
+                    method: this._authMethod
+                },
+                'User %s failed to authenticate',
+                JSON.stringify(this._auth.user)
+            );
+            return callback(this._formatError('Invalid login', 'EAUTH', str, 'AUTH ' + this._authMethod));
+        }
+
+        this.logger.info(
+            {
+                tnx: 'smtp',
+                username: this._auth.user,
+                action: 'authenticated',
+                method: this._authMethod
+            },
+            'User %s authenticated',
+            JSON.stringify(this._auth.user)
+        );
+        this.authenticated = true;
+        callback(null, true);
+    }
+
+    /**
+     * Handle response for a MAIL FROM: command
+     *
+     * @param {String} str Message from the server
+     */
+    _actionMAIL(str, callback) {
+        let message, curRecipient;
+        if (Number(str.charAt(0)) !== 2) {
+            if (this._usingSmtpUtf8 && /^550 /.test(str) && /[\x80-\uFFFF]/.test(this._envelope.from)) {
+                message = 'Internationalized mailbox name not allowed';
+            } else {
+                message = 'Mail command failed';
+            }
+            return callback(this._formatError(message, 'EENVELOPE', str, 'MAIL FROM'));
+        }
+
+        if (!this._envelope.rcptQueue.length) {
+            return callback(this._formatError("Can't send mail - no recipients defined", 'EENVELOPE', false, 'API'));
+        } else {
+            this._recipientQueue = [];
+
+            if (this._supportedExtensions.includes('PIPELINING')) {
+                while (this._envelope.rcptQueue.length) {
+                    curRecipient = this._envelope.rcptQueue.shift();
+                    this._recipientQueue.push(curRecipient);
+                    this._responseActions.push(str => {
+                        this._actionRCPT(str, callback);
+                    });
+                    this._sendCommand('RCPT TO:<' + curRecipient + '>' + this._getDsnRcptToArgs());
+                }
+            } else {
+                curRecipient = this._envelope.rcptQueue.shift();
+                this._recipientQueue.push(curRecipient);
+                this._responseActions.push(str => {
+                    this._actionRCPT(str, callback);
+                });
+                this._sendCommand('RCPT TO:<' + curRecipient + '>' + this._getDsnRcptToArgs());
+            }
+        }
+    }
+
+    /**
+     * Handle response for a RCPT TO: command
+     *
+     * @param {String} str Message from the server
+     */
+    _actionRCPT(str, callback) {
+        let message,
+            err,
+            curRecipient = this._recipientQueue.shift();
+        if (Number(str.charAt(0)) !== 2) {
+            // this is a soft error
+            if (this._usingSmtpUtf8 && /^553 /.test(str) && /[\x80-\uFFFF]/.test(curRecipient)) {
+                message = 'Internationalized mailbox name not allowed';
+            } else {
+                message = 'Recipient command failed';
+            }
+            this._envelope.rejected.push(curRecipient);
+            // store error for the failed recipient
+            err = this._formatError(message, 'EENVELOPE', str, 'RCPT TO');
+            err.recipient = curRecipient;
+            this._envelope.rejectedErrors.push(err);
+        } else {
+            this._envelope.accepted.push(curRecipient);
+        }
+
+        if (!this._envelope.rcptQueue.length && !this._recipientQueue.length) {
+            if (this._envelope.rejected.length < this._envelope.to.length) {
+                this._responseActions.push(str => {
+                    this._actionDATA(str, callback);
+                });
+                this._sendCommand('DATA');
+            } else {
+                err = this._formatError("Can't send mail - all recipients were rejected", 'EENVELOPE', str, 'RCPT TO');
+                err.rejected = this._envelope.rejected;
+                err.rejectedErrors = this._envelope.rejectedErrors;
+                return callback(err);
+            }
+        } else if (this._envelope.rcptQueue.length) {
+            curRecipient = this._envelope.rcptQueue.shift();
+            this._recipientQueue.push(curRecipient);
+            this._responseActions.push(str => {
+                this._actionRCPT(str, callback);
+            });
+            this._sendCommand('RCPT TO:<' + curRecipient + '>' + this._getDsnRcptToArgs());
+        }
+    }
+
+    /**
+     * Handle response for a DATA command
+     *
+     * @param {String} str Message from the server
+     */
+    _actionDATA(str, callback) {
+        // response should be 354 but according to this issue https://github.com/eleith/emailjs/issues/24
+        // some servers might use 250 instead, so lets check for 2 or 3 as the first digit
+        if (!/^[23]/.test(str)) {
+            return callback(this._formatError('Data command failed', 'EENVELOPE', str, 'DATA'));
+        }
+
+        let response = {
+            accepted: this._envelope.accepted,
+            rejected: this._envelope.rejected
+        };
+
+        if (this._ehloLines && this._ehloLines.length) {
+            response.ehlo = this._ehloLines;
+        }
+
+        if (this._envelope.rejectedErrors.length) {
+            response.rejectedErrors = this._envelope.rejectedErrors;
+        }
+
+        callback(null, response);
+    }
+
+    /**
+     * Handle response for a DATA stream when using SMTP
+     * We expect a single response that defines if the sending succeeded or failed
+     *
+     * @param {String} str Message from the server
+     */
+    _actionSMTPStream(str, callback) {
+        if (Number(str.charAt(0)) !== 2) {
+            // Message failed
+            return callback(this._formatError('Message failed', 'EMESSAGE', str, 'DATA'));
+        } else {
+            // Message sent succesfully
+            return callback(null, str);
+        }
+    }
+
+    /**
+     * Handle response for a DATA stream
+     * We expect a separate response for every recipient. All recipients can either
+     * succeed or fail separately
+     *
+     * @param {String} recipient The recipient this response applies to
+     * @param {Boolean} final Is this the final recipient?
+     * @param {String} str Message from the server
+     */
+    _actionLMTPStream(recipient, final, str, callback) {
+        let err;
+        if (Number(str.charAt(0)) !== 2) {
+            // Message failed
+            err = this._formatError('Message failed for recipient ' + recipient, 'EMESSAGE', str, 'DATA');
+            err.recipient = recipient;
+            this._envelope.rejected.push(recipient);
+            this._envelope.rejectedErrors.push(err);
+            for (let i = 0, len = this._envelope.accepted.length; i < len; i++) {
+                if (this._envelope.accepted[i] === recipient) {
+                    this._envelope.accepted.splice(i, 1);
+                }
+            }
+        }
+        if (final) {
+            return callback(null, str);
+        }
+    }
+
+    _handleXOauth2Token(isRetry, callback) {
+        this._auth.oauth2.getToken(isRetry, (err, accessToken) => {
+            if (err) {
+                this.logger.info(
+                    {
+                        tnx: 'smtp',
+                        username: this._auth.user,
+                        action: 'authfail',
+                        method: this._authMethod
+                    },
+                    'User %s failed to authenticate',
+                    JSON.stringify(this._auth.user)
+                );
+                return callback(this._formatError(err, 'EAUTH', false, 'AUTH XOAUTH2'));
+            }
+            this._responseActions.push(str => {
+                this._actionAUTHComplete(str, isRetry, callback);
+            });
+            this._sendCommand(
+                'AUTH XOAUTH2 ' + this._auth.oauth2.buildXOAuth2Token(accessToken),
+                //  Hidden for logs
+                'AUTH XOAUTH2 ' + this._auth.oauth2.buildXOAuth2Token('/* secret */')
+            );
+        });
+    }
+
+    /**
+     *
+     * @param {string} command
+     * @private
+     */
+    _isDestroyedMessage(command) {
+        if (this._destroyed) {
+            return 'Cannot ' + command + ' - smtp connection is already destroyed.';
+        }
+
+        if (this._socket) {
+            if (this._socket.destroyed) {
+                return 'Cannot ' + command + ' - smtp connection socket is already destroyed.';
+            }
+
+            if (!this._socket.writable) {
+                return 'Cannot ' + command + ' - smtp connection socket is already half-closed.';
+            }
+        }
+    }
+
+    _getHostname() {
+        // defaul hostname is machine hostname or [IP]
+        let defaultHostname;
+        try {
+            defaultHostname = os.hostname() || '';
+        } catch (err) {
+            // fails on windows 7
+            defaultHostname = 'localhost';
+        }
+
+        // ignore if not FQDN
+        if (!defaultHostname || defaultHostname.indexOf('.') < 0) {
+            defaultHostname = '[127.0.0.1]';
+        }
+
+        // IP should be enclosed in []
+        if (defaultHostname.match(/^\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}$/)) {
+            defaultHostname = '[' + defaultHostname + ']';
+        }
+
+        return defaultHostname;
+    }
+}
+
+module.exports = SMTPConnection;
diff --git a/backend/node_modules/nodemailer/lib/smtp-pool/index.js b/backend/node_modules/nodemailer/lib/smtp-pool/index.js
new file mode 100644
index 0000000..1c16a7f
--- /dev/null
+++ b/backend/node_modules/nodemailer/lib/smtp-pool/index.js
@@ -0,0 +1,652 @@
+'use strict';
+
+const EventEmitter = require('events');
+const PoolResource = require('./pool-resource');
+const SMTPConnection = require('../smtp-connection');
+const wellKnown = require('../well-known');
+const shared = require('../shared');
+const packageData = require('../../package.json');
+
+/**
+ * Creates a SMTP pool transport object for Nodemailer
+ *
+ * @constructor
+ * @param {Object} options SMTP Connection options
+ */
+class SMTPPool extends EventEmitter {
+    constructor(options) {
+        super();
+
+        options = options || {};
+        if (typeof options === 'string') {
+            options = {
+                url: options
+            };
+        }
+
+        let urlData;
+        let service = options.service;
+
+        if (typeof options.getSocket === 'function') {
+            this.getSocket = options.getSocket;
+        }
+
+        if (options.url) {
+            urlData = shared.parseConnectionUrl(options.url);
+            service = service || urlData.service;
+        }
+
+        this.options = shared.assign(
+            false, // create new object
+            options, // regular options
+            urlData, // url options
+            service && wellKnown(service) // wellknown options
+        );
+
+        this.options.maxConnections = this.options.maxConnections || 5;
+        this.options.maxMessages = this.options.maxMessages || 100;
+
+        this.logger = shared.getLogger(this.options, {
+            component: this.options.component || 'smtp-pool'
+        });
+
+        // temporary object
+        let connection = new SMTPConnection(this.options);
+
+        this.name = 'SMTP (pool)';
+        this.version = packageData.version + '[client:' + connection.version + ']';
+
+        this._rateLimit = {
+            counter: 0,
+            timeout: null,
+            waiting: [],
+            checkpoint: false,
+            delta: Number(this.options.rateDelta) || 1000,
+            limit: Number(this.options.rateLimit) || 0
+        };
+        this._closed = false;
+        this._queue = [];
+        this._connections = [];
+        this._connectionCounter = 0;
+
+        this.idling = true;
+
+        setImmediate(() => {
+            if (this.idling) {
+                this.emit('idle');
+            }
+        });
+    }
+
+    /**
+     * Placeholder function for creating proxy sockets. This method immediatelly returns
+     * without a socket
+     *
+     * @param {Object} options Connection options
+     * @param {Function} callback Callback function to run with the socket keys
+     */
+    getSocket(options, callback) {
+        // return immediatelly
+        return setImmediate(() => callback(null, false));
+    }
+
+    /**
+     * Queues an e-mail to be sent using the selected settings
+     *
+     * @param {Object} mail Mail object
+     * @param {Function} callback Callback function
+     */
+    send(mail, callback) {
+        if (this._closed) {
+            return false;
+        }
+
+        this._queue.push({
+            mail,
+            requeueAttempts: 0,
+            callback
+        });
+
+        if (this.idling && this._queue.length >= this.options.maxConnections) {
+            this.idling = false;
+        }
+
+        setImmediate(() => this._processMessages());
+
+        return true;
+    }
+
+    /**
+     * Closes all connections in the pool. If there is a message being sent, the connection
+     * is closed later
+     */
+    close() {
+        let connection;
+        let len = this._connections.length;
+        this._closed = true;
+
+        // clear rate limit timer if it exists
+        clearTimeout(this._rateLimit.timeout);
+
+        if (!len && !this._queue.length) {
+            return;
+        }
+
+        // remove all available connections
+        for (let i = len - 1; i >= 0; i--) {
+            if (this._connections[i] && this._connections[i].available) {
+                connection = this._connections[i];
+                connection.close();
+                this.logger.info(
+                    {
+                        tnx: 'connection',
+                        cid: connection.id,
+                        action: 'removed'
+                    },
+                    'Connection #%s removed',
+                    connection.id
+                );
+            }
+        }
+
+        if (len && !this._connections.length) {
+            this.logger.debug(
+                {
+                    tnx: 'connection'
+                },
+                'All connections removed'
+            );
+        }
+
+        if (!this._queue.length) {
+            return;
+        }
+
+        // make sure that entire queue would be cleaned
+        let invokeCallbacks = () => {
+            if (!this._queue.length) {
+                this.logger.debug(
+                    {
+                        tnx: 'connection'
+                    },
+                    'Pending queue entries cleared'
+                );
+                return;
+            }
+            let entry = this._queue.shift();
+            if (entry && typeof entry.callback === 'function') {
+                try {
+                    entry.callback(new Error('Connection pool was closed'));
+                } catch (E) {
+                    this.logger.error(
+                        {
+                            err: E,
+                            tnx: 'callback',
+                            cid: connection.id
+                        },
+                        'Callback error for #%s: %s',
+                        connection.id,
+                        E.message
+                    );
+                }
+            }
+            setImmediate(invokeCallbacks);
+        };
+        setImmediate(invokeCallbacks);
+    }
+
+    /**
+     * Check the queue and available connections. If there is a message to be sent and there is
+     * an available connection, then use this connection to send the mail
+     */
+    _processMessages() {
+        let connection;
+        let i, len;
+
+        // do nothing if already closed
+        if (this._closed) {
+            return;
+        }
+
+        // do nothing if queue is empty
+        if (!this._queue.length) {
+            if (!this.idling) {
+                // no pending jobs
+                this.idling = true;
+                this.emit('idle');
+            }
+            return;
+        }
+
+        // find first available connection
+        for (i = 0, len = this._connections.length; i < len; i++) {
+            if (this._connections[i].available) {
+                connection = this._connections[i];
+                break;
+            }
+        }
+
+        if (!connection && this._connections.length < this.options.maxConnections) {
+            connection = this._createConnection();
+        }
+
+        if (!connection) {
+            // no more free connection slots available
+            this.idling = false;
+            return;
+        }
+
+        // check if there is free space in the processing queue
+        if (!this.idling && this._queue.length < this.options.maxConnections) {
+            this.idling = true;
+            this.emit('idle');
+        }
+
+        let entry = (connection.queueEntry = this._queue.shift());
+        entry.messageId = (connection.queueEntry.mail.message.getHeader('message-id') || '').replace(/[<>\s]/g, '');
+
+        connection.available = false;
+
+        this.logger.debug(
+            {
+                tnx: 'pool',
+                cid: connection.id,
+                messageId: entry.messageId,
+                action: 'assign'
+            },
+            'Assigned message <%s> to #%s (%s)',
+            entry.messageId,
+            connection.id,
+            connection.messages + 1
+        );
+
+        if (this._rateLimit.limit) {
+            this._rateLimit.counter++;
+            if (!this._rateLimit.checkpoint) {
+                this._rateLimit.checkpoint = Date.now();
+            }
+        }
+
+        connection.send(entry.mail, (err, info) => {
+            // only process callback if current handler is not changed
+            if (entry === connection.queueEntry) {
+                try {
+                    entry.callback(err, info);
+                } catch (E) {
+                    this.logger.error(
+                        {
+                            err: E,
+                            tnx: 'callback',
+                            cid: connection.id
+                        },
+                        'Callback error for #%s: %s',
+                        connection.id,
+                        E.message
+                    );
+                }
+                connection.queueEntry = false;
+            }
+        });
+    }
+
+    /**
+     * Creates a new pool resource
+     */
+    _createConnection() {
+        let connection = new PoolResource(this);
+
+        connection.id = ++this._connectionCounter;
+
+        this.logger.info(
+            {
+                tnx: 'pool',
+                cid: connection.id,
+                action: 'conection'
+            },
+            'Created new pool resource #%s',
+            connection.id
+        );
+
+        // resource comes available
+        connection.on('available', () => {
+            this.logger.debug(
+                {
+                    tnx: 'connection',
+                    cid: connection.id,
+                    action: 'available'
+                },
+                'Connection #%s became available',
+                connection.id
+            );
+
+            if (this._closed) {
+                // if already closed run close() that will remove this connections from connections list
+                this.close();
+            } else {
+                // check if there's anything else to send
+                this._processMessages();
+            }
+        });
+
+        // resource is terminated with an error
+        connection.once('error', err => {
+            if (err.code !== 'EMAXLIMIT') {
+                this.logger.error(
+                    {
+                        err,
+                        tnx: 'pool',
+                        cid: connection.id
+                    },
+                    'Pool Error for #%s: %s',
+                    connection.id,
+                    err.message
+                );
+            } else {
+                this.logger.debug(
+                    {
+                        tnx: 'pool',
+                        cid: connection.id,
+                        action: 'maxlimit'
+                    },
+                    'Max messages limit exchausted for #%s',
+                    connection.id
+                );
+            }
+
+            if (connection.queueEntry) {
+                try {
+                    connection.queueEntry.callback(err);
+                } catch (E) {
+                    this.logger.error(
+                        {
+                            err: E,
+                            tnx: 'callback',
+                            cid: connection.id
+                        },
+                        'Callback error for #%s: %s',
+                        connection.id,
+                        E.message
+                    );
+                }
+                connection.queueEntry = false;
+            }
+
+            // remove the erroneus connection from connections list
+            this._removeConnection(connection);
+
+            this._continueProcessing();
+        });
+
+        connection.once('close', () => {
+            this.logger.info(
+                {
+                    tnx: 'connection',
+                    cid: connection.id,
+                    action: 'closed'
+                },
+                'Connection #%s was closed',
+                connection.id
+            );
+
+            this._removeConnection(connection);
+
+            if (connection.queueEntry) {
+                // If the connection closed when sending, add the message to the queue again
+                // if max number of requeues is not reached yet
+                // Note that we must wait a bit.. because the callback of the 'error' handler might be called
+                // in the next event loop
+                setTimeout(() => {
+                    if (connection.queueEntry) {
+                        if (this._shouldRequeuOnConnectionClose(connection.queueEntry)) {
+                            this._requeueEntryOnConnectionClose(connection);
+                        } else {
+                            this._failDeliveryOnConnectionClose(connection);
+                        }
+                    }
+                    this._continueProcessing();
+                }, 50);
+            } else {
+                if (!this._closed && this.idling && !this._connections.length) {
+                    this.emit('clear');
+                }
+
+                this._continueProcessing();
+            }
+        });
+
+        this._connections.push(connection);
+
+        return connection;
+    }
+
+    _shouldRequeuOnConnectionClose(queueEntry) {
+        if (this.options.maxRequeues === undefined || this.options.maxRequeues < 0) {
+            return true;
+        }
+
+        return queueEntry.requeueAttempts < this.options.maxRequeues;
+    }
+
+    _failDeliveryOnConnectionClose(connection) {
+        if (connection.queueEntry && connection.queueEntry.callback) {
+            try {
+                connection.queueEntry.callback(new Error('Reached maximum number of retries after connection was closed'));
+            } catch (E) {
+                this.logger.error(
+                    {
+                        err: E,
+                        tnx: 'callback',
+                        messageId: connection.queueEntry.messageId,
+                        cid: connection.id
+                    },
+                    'Callback error for #%s: %s',
+                    connection.id,
+                    E.message
+                );
+            }
+            connection.queueEntry = false;
+        }
+    }
+
+    _requeueEntryOnConnectionClose(connection) {
+        connection.queueEntry.requeueAttempts = connection.queueEntry.requeueAttempts + 1;
+        this.logger.debug(
+            {
+                tnx: 'pool',
+                cid: connection.id,
+                messageId: connection.queueEntry.messageId,
+                action: 'requeue'
+            },
+            'Re-queued message <%s> for #%s. Attempt: #%s',
+            connection.queueEntry.messageId,
+            connection.id,
+            connection.queueEntry.requeueAttempts
+        );
+        this._queue.unshift(connection.queueEntry);
+        connection.queueEntry = false;
+    }
+
+    /**
+     * Continue to process message if the pool hasn't closed
+     */
+    _continueProcessing() {
+        if (this._closed) {
+            this.close();
+        } else {
+            setTimeout(() => this._processMessages(), 100);
+        }
+    }
+
+    /**
+     * Remove resource from pool
+     *
+     * @param {Object} connection The PoolResource to remove
+     */
+    _removeConnection(connection) {
+        let index = this._connections.indexOf(connection);
+
+        if (index !== -1) {
+            this._connections.splice(index, 1);
+        }
+    }
+
+    /**
+     * Checks if connections have hit current rate limit and if so, queues the availability callback
+     *
+     * @param {Function} callback Callback function to run once rate limiter has been cleared
+     */
+    _checkRateLimit(callback) {
+        if (!this._rateLimit.limit) {
+            return callback();
+        }
+
+        let now = Date.now();
+
+        if (this._rateLimit.counter < this._rateLimit.limit) {
+            return callback();
+        }
+
+        this._rateLimit.waiting.push(callback);
+
+        if (this._rateLimit.checkpoint <= now - this._rateLimit.delta) {
+            return this._clearRateLimit();
+        } else if (!this._rateLimit.timeout) {
+            this._rateLimit.timeout = setTimeout(() => this._clearRateLimit(), this._rateLimit.delta - (now - this._rateLimit.checkpoint));
+            this._rateLimit.checkpoint = now;
+        }
+    }
+
+    /**
+     * Clears current rate limit limitation and runs paused callback
+     */
+    _clearRateLimit() {
+        clearTimeout(this._rateLimit.timeout);
+        this._rateLimit.timeout = null;
+        this._rateLimit.counter = 0;
+        this._rateLimit.checkpoint = false;
+
+        // resume all paused connections
+        while (this._rateLimit.waiting.length) {
+            let cb = this._rateLimit.waiting.shift();
+            setImmediate(cb);
+        }
+    }
+
+    /**
+     * Returns true if there are free slots in the queue
+     */
+    isIdle() {
+        return this.idling;
+    }
+
+    /**
+     * Verifies SMTP configuration
+     *
+     * @param {Function} callback Callback function
+     */
+    verify(callback) {
+        let promise;
+
+        if (!callback) {
+            promise = new Promise((resolve, reject) => {
+                callback = shared.callbackPromise(resolve, reject);
+            });
+        }
+
+        let auth = new PoolResource(this).auth;
+
+        this.getSocket(this.options, (err, socketOptions) => {
+            if (err) {
+                return callback(err);
+            }
+
+            let options = this.options;
+            if (socketOptions && socketOptions.connection) {
+                this.logger.info(
+                    {
+                        tnx: 'proxy',
+                        remoteAddress: socketOptions.connection.remoteAddress,
+                        remotePort: socketOptions.connection.remotePort,
+                        destHost: options.host || '',
+                        destPort: options.port || '',
+                        action: 'connected'
+                    },
+                    'Using proxied socket from %s:%s to %s:%s',
+                    socketOptions.connection.remoteAddress,
+                    socketOptions.connection.remotePort,
+                    options.host || '',
+                    options.port || ''
+                );
+                options = shared.assign(false, options);
+                Object.keys(socketOptions).forEach(key => {
+                    options[key] = socketOptions[key];
+                });
+            }
+
+            let connection = new SMTPConnection(options);
+            let returned = false;
+
+            connection.once('error', err => {
+                if (returned) {
+                    return;
+                }
+                returned = true;
+                connection.close();
+                return callback(err);
+            });
+
+            connection.once('end', () => {
+                if (returned) {
+                    return;
+                }
+                returned = true;
+                return callback(new Error('Connection closed'));
+            });
+
+            let finalize = () => {
+                if (returned) {
+                    return;
+                }
+                returned = true;
+                connection.quit();
+                return callback(null, true);
+            };
+
+            connection.connect(() => {
+                if (returned) {
+                    return;
+                }
+
+                if (auth && (connection.allowsAuth || options.forceAuth)) {
+                    connection.login(auth, err => {
+                        if (returned) {
+                            return;
+                        }
+
+                        if (err) {
+                            returned = true;
+                            connection.close();
+                            return callback(err);
+                        }
+
+                        finalize();
+                    });
+                } else if (!auth && connection.allowsAuth && options.forceAuth) {
+                    let err = new Error('Authentication info was not provided');
+                    err.code = 'NoAuth';
+
+                    returned = true;
+                    connection.close();
+                    return callback(err);
+                } else {
+                    finalize();
+                }
+            });
+        });
+
+        return promise;
+    }
+}
+
+// expose to the world
+module.exports = SMTPPool;
diff --git a/backend/node_modules/nodemailer/lib/smtp-pool/pool-resource.js b/backend/node_modules/nodemailer/lib/smtp-pool/pool-resource.js
new file mode 100644
index 0000000..d67cc5c
--- /dev/null
+++ b/backend/node_modules/nodemailer/lib/smtp-pool/pool-resource.js
@@ -0,0 +1,253 @@
+'use strict';
+
+const SMTPConnection = require('../smtp-connection');
+const assign = require('../shared').assign;
+const XOAuth2 = require('../xoauth2');
+const EventEmitter = require('events');
+
+/**
+ * Creates an element for the pool
+ *
+ * @constructor
+ * @param {Object} options SMTPPool instance
+ */
+class PoolResource extends EventEmitter {
+    constructor(pool) {
+        super();
+
+        this.pool = pool;
+        this.options = pool.options;
+        this.logger = this.pool.logger;
+
+        if (this.options.auth) {
+            switch ((this.options.auth.type || '').toString().toUpperCase()) {
+                case 'OAUTH2': {
+                    let oauth2 = new XOAuth2(this.options.auth, this.logger);
+                    oauth2.provisionCallback = (this.pool.mailer && this.pool.mailer.get('oauth2_provision_cb')) || oauth2.provisionCallback;
+                    this.auth = {
+                        type: 'OAUTH2',
+                        user: this.options.auth.user,
+                        oauth2,
+                        method: 'XOAUTH2'
+                    };
+                    oauth2.on('token', token => this.pool.mailer.emit('token', token));
+                    oauth2.on('error', err => this.emit('error', err));
+                    break;
+                }
+                default:
+                    if (!this.options.auth.user && !this.options.auth.pass) {
+                        break;
+                    }
+                    this.auth = {
+                        type: (this.options.auth.type || '').toString().toUpperCase() || 'LOGIN',
+                        user: this.options.auth.user,
+                        credentials: {
+                            user: this.options.auth.user || '',
+                            pass: this.options.auth.pass,
+                            options: this.options.auth.options
+                        },
+                        method: (this.options.auth.method || '').trim().toUpperCase() || this.options.authMethod || false
+                    };
+            }
+        }
+
+        this._connection = false;
+        this._connected = false;
+
+        this.messages = 0;
+        this.available = true;
+    }
+
+    /**
+     * Initiates a connection to the SMTP server
+     *
+     * @param {Function} callback Callback function to run once the connection is established or failed
+     */
+    connect(callback) {
+        this.pool.getSocket(this.options, (err, socketOptions) => {
+            if (err) {
+                return callback(err);
+            }
+
+            let returned = false;
+            let options = this.options;
+            if (socketOptions && socketOptions.connection) {
+                this.logger.info(
+                    {
+                        tnx: 'proxy',
+                        remoteAddress: socketOptions.connection.remoteAddress,
+                        remotePort: socketOptions.connection.remotePort,
+                        destHost: options.host || '',
+                        destPort: options.port || '',
+                        action: 'connected'
+                    },
+                    'Using proxied socket from %s:%s to %s:%s',
+                    socketOptions.connection.remoteAddress,
+                    socketOptions.connection.remotePort,
+                    options.host || '',
+                    options.port || ''
+                );
+
+                options = assign(false, options);
+                Object.keys(socketOptions).forEach(key => {
+                    options[key] = socketOptions[key];
+                });
+            }
+
+            this.connection = new SMTPConnection(options);
+
+            this.connection.once('error', err => {
+                this.emit('error', err);
+                if (returned) {
+                    return;
+                }
+                returned = true;
+                return callback(err);
+            });
+
+            this.connection.once('end', () => {
+                this.close();
+                if (returned) {
+                    return;
+                }
+                returned = true;
+
+                let timer = setTimeout(() => {
+                    if (returned) {
+                        return;
+                    }
+                    // still have not returned, this means we have an unexpected connection close
+                    let err = new Error('Unexpected socket close');
+                    if (this.connection && this.connection._socket && this.connection._socket.upgrading) {
+                        // starttls connection errors
+                        err.code = 'ETLS';
+                    }
+                    callback(err);
+                }, 1000);
+
+                try {
+                    timer.unref();
+                } catch (E) {
+                    // Ignore. Happens on envs with non-node timer implementation
+                }
+            });
+
+            this.connection.connect(() => {
+                if (returned) {
+                    return;
+                }
+
+                if (this.auth && (this.connection.allowsAuth || options.forceAuth)) {
+                    this.connection.login(this.auth, err => {
+                        if (returned) {
+                            return;
+                        }
+                        returned = true;
+
+                        if (err) {
+                            this.connection.close();
+                            this.emit('error', err);
+                            return callback(err);
+                        }
+
+                        this._connected = true;
+                        callback(null, true);
+                    });
+                } else {
+                    returned = true;
+                    this._connected = true;
+                    return callback(null, true);
+                }
+            });
+        });
+    }
+
+    /**
+     * Sends an e-mail to be sent using the selected settings
+     *
+     * @param {Object} mail Mail object
+     * @param {Function} callback Callback function
+     */
+    send(mail, callback) {
+        if (!this._connected) {
+            return this.connect(err => {
+                if (err) {
+                    return callback(err);
+                }
+                return this.send(mail, callback);
+            });
+        }
+
+        let envelope = mail.message.getEnvelope();
+        let messageId = mail.message.messageId();
+
+        let recipients = [].concat(envelope.to || []);
+        if (recipients.length > 3) {
+            recipients.push('...and ' + recipients.splice(2).length + ' more');
+        }
+        this.logger.info(
+            {
+                tnx: 'send',
+                messageId,
+                cid: this.id
+            },
+            'Sending message %s using #%s to <%s>',
+            messageId,
+            this.id,
+            recipients.join(', ')
+        );
+
+        if (mail.data.dsn) {
+            envelope.dsn = mail.data.dsn;
+        }
+
+        this.connection.send(envelope, mail.message.createReadStream(), (err, info) => {
+            this.messages++;
+
+            if (err) {
+                this.connection.close();
+                this.emit('error', err);
+                return callback(err);
+            }
+
+            info.envelope = {
+                from: envelope.from,
+                to: envelope.to
+            };
+            info.messageId = messageId;
+
+            setImmediate(() => {
+                let err;
+                if (this.messages >= this.options.maxMessages) {
+                    err = new Error('Resource exhausted');
+                    err.code = 'EMAXLIMIT';
+                    this.connection.close();
+                    this.emit('error', err);
+                } else {
+                    this.pool._checkRateLimit(() => {
+                        this.available = true;
+                        this.emit('available');
+                    });
+                }
+            });
+
+            callback(null, info);
+        });
+    }
+
+    /**
+     * Closes the connection
+     */
+    close() {
+        this._connected = false;
+        if (this.auth && this.auth.oauth2) {
+            this.auth.oauth2.removeAllListeners();
+        }
+        if (this.connection) {
+            this.connection.close();
+        }
+        this.emit('close');
+    }
+}
+
+module.exports = PoolResource;
diff --git a/backend/node_modules/nodemailer/lib/smtp-transport/index.js b/backend/node_modules/nodemailer/lib/smtp-transport/index.js
new file mode 100644
index 0000000..a1c45a5
--- /dev/null
+++ b/backend/node_modules/nodemailer/lib/smtp-transport/index.js
@@ -0,0 +1,416 @@
+'use strict';
+
+const EventEmitter = require('events');
+const SMTPConnection = require('../smtp-connection');
+const wellKnown = require('../well-known');
+const shared = require('../shared');
+const XOAuth2 = require('../xoauth2');
+const packageData = require('../../package.json');
+
+/**
+ * Creates a SMTP transport object for Nodemailer
+ *
+ * @constructor
+ * @param {Object} options Connection options
+ */
+class SMTPTransport extends EventEmitter {
+    constructor(options) {
+        super();
+
+        options = options || {};
+
+        if (typeof options === 'string') {
+            options = {
+                url: options
+            };
+        }
+
+        let urlData;
+        let service = options.service;
+
+        if (typeof options.getSocket === 'function') {
+            this.getSocket = options.getSocket;
+        }
+
+        if (options.url) {
+            urlData = shared.parseConnectionUrl(options.url);
+            service = service || urlData.service;
+        }
+
+        this.options = shared.assign(
+            false, // create new object
+            options, // regular options
+            urlData, // url options
+            service && wellKnown(service) // wellknown options
+        );
+
+        this.logger = shared.getLogger(this.options, {
+            component: this.options.component || 'smtp-transport'
+        });
+
+        // temporary object
+        let connection = new SMTPConnection(this.options);
+
+        this.name = 'SMTP';
+        this.version = packageData.version + '[client:' + connection.version + ']';
+
+        if (this.options.auth) {
+            this.auth = this.getAuth({});
+        }
+    }
+
+    /**
+     * Placeholder function for creating proxy sockets. This method immediatelly returns
+     * without a socket
+     *
+     * @param {Object} options Connection options
+     * @param {Function} callback Callback function to run with the socket keys
+     */
+    getSocket(options, callback) {
+        // return immediatelly
+        return setImmediate(() => callback(null, false));
+    }
+
+    getAuth(authOpts) {
+        if (!authOpts) {
+            return this.auth;
+        }
+
+        let hasAuth = false;
+        let authData = {};
+
+        if (this.options.auth && typeof this.options.auth === 'object') {
+            Object.keys(this.options.auth).forEach(key => {
+                hasAuth = true;
+                authData[key] = this.options.auth[key];
+            });
+        }
+
+        if (authOpts && typeof authOpts === 'object') {
+            Object.keys(authOpts).forEach(key => {
+                hasAuth = true;
+                authData[key] = authOpts[key];
+            });
+        }
+
+        if (!hasAuth) {
+            return false;
+        }
+
+        switch ((authData.type || '').toString().toUpperCase()) {
+            case 'OAUTH2': {
+                if (!authData.service && !authData.user) {
+                    return false;
+                }
+                let oauth2 = new XOAuth2(authData, this.logger);
+                oauth2.provisionCallback = (this.mailer && this.mailer.get('oauth2_provision_cb')) || oauth2.provisionCallback;
+                oauth2.on('token', token => this.mailer.emit('token', token));
+                oauth2.on('error', err => this.emit('error', err));
+                return {
+                    type: 'OAUTH2',
+                    user: authData.user,
+                    oauth2,
+                    method: 'XOAUTH2'
+                };
+            }
+            default:
+                return {
+                    type: (authData.type || '').toString().toUpperCase() || 'LOGIN',
+                    user: authData.user,
+                    credentials: {
+                        user: authData.user || '',
+                        pass: authData.pass,
+                        options: authData.options
+                    },
+                    method: (authData.method || '').trim().toUpperCase() || this.options.authMethod || false
+                };
+        }
+    }
+
+    /**
+     * Sends an e-mail using the selected settings
+     *
+     * @param {Object} mail Mail object
+     * @param {Function} callback Callback function
+     */
+    send(mail, callback) {
+        this.getSocket(this.options, (err, socketOptions) => {
+            if (err) {
+                return callback(err);
+            }
+
+            let returned = false;
+            let options = this.options;
+            if (socketOptions && socketOptions.connection) {
+                this.logger.info(
+                    {
+                        tnx: 'proxy',
+                        remoteAddress: socketOptions.connection.remoteAddress,
+                        remotePort: socketOptions.connection.remotePort,
+                        destHost: options.host || '',
+                        destPort: options.port || '',
+                        action: 'connected'
+                    },
+                    'Using proxied socket from %s:%s to %s:%s',
+                    socketOptions.connection.remoteAddress,
+                    socketOptions.connection.remotePort,
+                    options.host || '',
+                    options.port || ''
+                );
+
+                // only copy options if we need to modify it
+                options = shared.assign(false, options);
+                Object.keys(socketOptions).forEach(key => {
+                    options[key] = socketOptions[key];
+                });
+            }
+
+            let connection = new SMTPConnection(options);
+
+            connection.once('error', err => {
+                if (returned) {
+                    return;
+                }
+                returned = true;
+                connection.close();
+                return callback(err);
+            });
+
+            connection.once('end', () => {
+                if (returned) {
+                    return;
+                }
+
+                let timer = setTimeout(() => {
+                    if (returned) {
+                        return;
+                    }
+                    returned = true;
+                    // still have not returned, this means we have an unexpected connection close
+                    let err = new Error('Unexpected socket close');
+                    if (connection && connection._socket && connection._socket.upgrading) {
+                        // starttls connection errors
+                        err.code = 'ETLS';
+                    }
+                    callback(err);
+                }, 1000);
+
+                try {
+                    timer.unref();
+                } catch (E) {
+                    // Ignore. Happens on envs with non-node timer implementation
+                }
+            });
+
+            let sendMessage = () => {
+                let envelope = mail.message.getEnvelope();
+                let messageId = mail.message.messageId();
+
+                let recipients = [].concat(envelope.to || []);
+                if (recipients.length > 3) {
+                    recipients.push('...and ' + recipients.splice(2).length + ' more');
+                }
+
+                if (mail.data.dsn) {
+                    envelope.dsn = mail.data.dsn;
+                }
+
+                this.logger.info(
+                    {
+                        tnx: 'send',
+                        messageId
+                    },
+                    'Sending message %s to <%s>',
+                    messageId,
+                    recipients.join(', ')
+                );
+
+                connection.send(envelope, mail.message.createReadStream(), (err, info) => {
+                    returned = true;
+                    connection.close();
+                    if (err) {
+                        this.logger.error(
+                            {
+                                err,
+                                tnx: 'send'
+                            },
+                            'Send error for %s: %s',
+                            messageId,
+                            err.message
+                        );
+                        return callback(err);
+                    }
+                    info.envelope = {
+                        from: envelope.from,
+                        to: envelope.to
+                    };
+                    info.messageId = messageId;
+                    try {
+                        return callback(null, info);
+                    } catch (E) {
+                        this.logger.error(
+                            {
+                                err: E,
+                                tnx: 'callback'
+                            },
+                            'Callback error for %s: %s',
+                            messageId,
+                            E.message
+                        );
+                    }
+                });
+            };
+
+            connection.connect(() => {
+                if (returned) {
+                    return;
+                }
+
+                let auth = this.getAuth(mail.data.auth);
+
+                if (auth && (connection.allowsAuth || options.forceAuth)) {
+                    connection.login(auth, err => {
+                        if (auth && auth !== this.auth && auth.oauth2) {
+                            auth.oauth2.removeAllListeners();
+                        }
+                        if (returned) {
+                            return;
+                        }
+
+                        if (err) {
+                            returned = true;
+                            connection.close();
+                            return callback(err);
+                        }
+
+                        sendMessage();
+                    });
+                } else {
+                    sendMessage();
+                }
+            });
+        });
+    }
+
+    /**
+     * Verifies SMTP configuration
+     *
+     * @param {Function} callback Callback function
+     */
+    verify(callback) {
+        let promise;
+
+        if (!callback) {
+            promise = new Promise((resolve, reject) => {
+                callback = shared.callbackPromise(resolve, reject);
+            });
+        }
+
+        this.getSocket(this.options, (err, socketOptions) => {
+            if (err) {
+                return callback(err);
+            }
+
+            let options = this.options;
+            if (socketOptions && socketOptions.connection) {
+                this.logger.info(
+                    {
+                        tnx: 'proxy',
+                        remoteAddress: socketOptions.connection.remoteAddress,
+                        remotePort: socketOptions.connection.remotePort,
+                        destHost: options.host || '',
+                        destPort: options.port || '',
+                        action: 'connected'
+                    },
+                    'Using proxied socket from %s:%s to %s:%s',
+                    socketOptions.connection.remoteAddress,
+                    socketOptions.connection.remotePort,
+                    options.host || '',
+                    options.port || ''
+                );
+
+                options = shared.assign(false, options);
+                Object.keys(socketOptions).forEach(key => {
+                    options[key] = socketOptions[key];
+                });
+            }
+
+            let connection = new SMTPConnection(options);
+            let returned = false;
+
+            connection.once('error', err => {
+                if (returned) {
+                    return;
+                }
+                returned = true;
+                connection.close();
+                return callback(err);
+            });
+
+            connection.once('end', () => {
+                if (returned) {
+                    return;
+                }
+                returned = true;
+                return callback(new Error('Connection closed'));
+            });
+
+            let finalize = () => {
+                if (returned) {
+                    return;
+                }
+                returned = true;
+                connection.quit();
+                return callback(null, true);
+            };
+
+            connection.connect(() => {
+                if (returned) {
+                    return;
+                }
+
+                let authData = this.getAuth({});
+
+                if (authData && (connection.allowsAuth || options.forceAuth)) {
+                    connection.login(authData, err => {
+                        if (returned) {
+                            return;
+                        }
+
+                        if (err) {
+                            returned = true;
+                            connection.close();
+                            return callback(err);
+                        }
+
+                        finalize();
+                    });
+                } else if (!authData && connection.allowsAuth && options.forceAuth) {
+                    let err = new Error('Authentication info was not provided');
+                    err.code = 'NoAuth';
+
+                    returned = true;
+                    connection.close();
+                    return callback(err);
+                } else {
+                    finalize();
+                }
+            });
+        });
+
+        return promise;
+    }
+
+    /**
+     * Releases resources
+     */
+    close() {
+        if (this.auth && this.auth.oauth2) {
+            this.auth.oauth2.removeAllListeners();
+        }
+        this.emit('close');
+    }
+}
+
+// expose to the world
+module.exports = SMTPTransport;
diff --git a/backend/node_modules/nodemailer/lib/stream-transport/index.js b/backend/node_modules/nodemailer/lib/stream-transport/index.js
new file mode 100644
index 0000000..1921469
--- /dev/null
+++ b/backend/node_modules/nodemailer/lib/stream-transport/index.js
@@ -0,0 +1,135 @@
+'use strict';
+
+const packageData = require('../../package.json');
+const shared = require('../shared');
+
+/**
+ * Generates a Transport object for streaming
+ *
+ * Possible options can be the following:
+ *
+ *  * **buffer** if true, then returns the message as a Buffer object instead of a stream
+ *  * **newline** either 'windows' or 'unix'
+ *
+ * @constructor
+ * @param {Object} optional config parameter
+ */
+class StreamTransport {
+    constructor(options) {
+        options = options || {};
+
+        this.options = options || {};
+
+        this.name = 'StreamTransport';
+        this.version = packageData.version;
+
+        this.logger = shared.getLogger(this.options, {
+            component: this.options.component || 'stream-transport'
+        });
+
+        this.winbreak = ['win', 'windows', 'dos', '\r\n'].includes((options.newline || '').toString().toLowerCase());
+    }
+
+    /**
+     * Compiles a mailcomposer message and forwards it to handler that sends it
+     *
+     * @param {Object} emailMessage MailComposer object
+     * @param {Function} callback Callback function to run when the sending is completed
+     */
+    send(mail, done) {
+        // We probably need this in the output
+        mail.message.keepBcc = true;
+
+        let envelope = mail.data.envelope || mail.message.getEnvelope();
+        let messageId = mail.message.messageId();
+
+        let recipients = [].concat(envelope.to || []);
+        if (recipients.length > 3) {
+            recipients.push('...and ' + recipients.splice(2).length + ' more');
+        }
+        this.logger.info(
+            {
+                tnx: 'send',
+                messageId
+            },
+            'Sending message %s to <%s> using %s line breaks',
+            messageId,
+            recipients.join(', '),
+            this.winbreak ? '<CR><LF>' : '<LF>'
+        );
+
+        setImmediate(() => {
+            let stream;
+
+            try {
+                stream = mail.message.createReadStream();
+            } catch (E) {
+                this.logger.error(
+                    {
+                        err: E,
+                        tnx: 'send',
+                        messageId
+                    },
+                    'Creating send stream failed for %s. %s',
+                    messageId,
+                    E.message
+                );
+                return done(E);
+            }
+
+            if (!this.options.buffer) {
+                stream.once('error', err => {
+                    this.logger.error(
+                        {
+                            err,
+                            tnx: 'send',
+                            messageId
+                        },
+                        'Failed creating message for %s. %s',
+                        messageId,
+                        err.message
+                    );
+                });
+                return done(null, {
+                    envelope: mail.data.envelope || mail.message.getEnvelope(),
+                    messageId,
+                    message: stream
+                });
+            }
+
+            let chunks = [];
+            let chunklen = 0;
+            stream.on('readable', () => {
+                let chunk;
+                while ((chunk = stream.read()) !== null) {
+                    chunks.push(chunk);
+                    chunklen += chunk.length;
+                }
+            });
+
+            stream.once('error', err => {
+                this.logger.error(
+                    {
+                        err,
+                        tnx: 'send',
+                        messageId
+                    },
+                    'Failed creating message for %s. %s',
+                    messageId,
+                    err.message
+                );
+                return done(err);
+            });
+
+            stream.on('end', () =>
+                done(null, {
+                    envelope: mail.data.envelope || mail.message.getEnvelope(),
+                    messageId,
+                    message: Buffer.concat(chunks, chunklen)
+                })
+            );
+        });
+    }
+}
+
+module.exports = StreamTransport;
diff --git a/backend/node_modules/nodemailer/lib/well-known/index.js b/backend/node_modules/nodemailer/lib/well-known/index.js
new file mode 100644
index 0000000..9fdc28f
--- /dev/null
+++ b/backend/node_modules/nodemailer/lib/well-known/index.js
@@ -0,0 +1,47 @@
+'use strict';
+
+const services = require('./services.json');
+const normalized = {};
+
+Object.keys(services).forEach(key => {
+    let service = services[key];
+
+    normalized[normalizeKey(key)] = normalizeService(service);
+
+    [].concat(service.aliases || []).forEach(alias => {
+        normalized[normalizeKey(alias)] = normalizeService(service);
+    });
+
+    [].concat(service.domains || []).forEach(domain => {
+        normalized[normalizeKey(domain)] = normalizeService(service);
+    });
+});
+
+function normalizeKey(key) {
+    return key.replace(/[^a-zA-Z0-9.-]/g, '').toLowerCase();
+}
+
+function normalizeService(service) {
+    let filter = ['domains', 'aliases'];
+    let response = {};
+
+    Object.keys(service).forEach(key => {
+        if (filter.indexOf(key) < 0) {
+            response[key] = service[key];
+        }
+    });
+
+    return response;
+}
+
+/**
+ * Resolves SMTP config for given key. Key can be a name (like 'Gmail'), alias (like 'Google Mail') or
+ * an email address (like 'test@googlemail.com').
+ *
+ * @param {String} key [description]
+ * @returns {Object} SMTP config or false if not found
+ */
+module.exports = function (key) {
+    key = normalizeKey(key.split('@').pop());
+    return normalized[key] || false;
+};
diff --git a/backend/node_modules/nodemailer/lib/well-known/services.json b/backend/node_modules/nodemailer/lib/well-known/services.json
new file mode 100644
index 0000000..89e49f4
--- /dev/null
+++ b/backend/node_modules/nodemailer/lib/well-known/services.json
@@ -0,0 +1,611 @@
+{
+    "1und1": {
+        "description": "1&1 Mail (German hosting provider)",
+        "host": "smtp.1und1.de",
+        "port": 465,
+        "secure": true,
+        "authMethod": "LOGIN"
+    },
+
+    "126": {
+        "description": "126 Mail (NetEase)",
+        "host": "smtp.126.com",
+        "port": 465,
+        "secure": true
+    },
+
+    "163": {
+        "description": "163 Mail (NetEase)",
+        "host": "smtp.163.com",
+        "port": 465,
+        "secure": true
+    },
+
+    "Aliyun": {
+        "description": "Alibaba Cloud Mail",
+        "domains": ["aliyun.com"],
+        "host": "smtp.aliyun.com",
+        "port": 465,
+        "secure": true
+    },
+
+    "AliyunQiye": {
+        "description": "Alibaba Cloud Enterprise Mail",
+        "host": "smtp.qiye.aliyun.com",
+        "port": 465,
+        "secure": true
+    },
+
+    "AOL": {
+        "description": "AOL Mail",
+        "domains": ["aol.com"],
+        "host": "smtp.aol.com",
+        "port": 587
+    },
+
+    "Aruba": {
+        "description": "Aruba PEC (Italian email provider)",
+        "domains": ["aruba.it", "pec.aruba.it"],
+        "aliases": ["Aruba PEC"],
+        "host": "smtps.aruba.it",
+        "port": 465,
+        "secure": true,
+        "authMethod": "LOGIN"
+    },
+
+    "Bluewin": {
+        "description": "Bluewin (Swiss email provider)",
+        "host": "smtpauths.bluewin.ch",
+        "domains": ["bluewin.ch"],
+        "port": 465
+    },
+
+    "BOL": {
+        "description": "BOL Mail (Brazilian provider)",
+        "domains": ["bol.com.br"],
+        "host": "smtp.bol.com.br",
+        "port": 587,
+        "requireTLS": true
+    },
+
+    "DebugMail": {
+        "description": "DebugMail (email testing service)",
+        "host": "debugmail.io",
+        "port": 25
+    },
+
+    "Disroot": {
+        "description": "Disroot (privacy-focused provider)",
+        "domains": ["disroot.org"],
+        "host": "disroot.org",
+        "port": 587,
+        "secure": false,
+        "authMethod": "LOGIN"
+    },
+
+    "DynectEmail": {
+        "description": "Dyn Email Delivery",
+        "aliases": ["Dynect"],
+        "host": "smtp.dynect.net",
+        "port": 25
+    },
+
+    "ElasticEmail": {
+        "description": "Elastic Email",
+        "aliases": ["Elastic Email"],
+        "host": "smtp.elasticemail.com",
+        "port": 465,
+        "secure": true
+    },
+
+    "Ethereal": {
+        "description": "Ethereal Email (email testing service)",
+        "aliases": ["ethereal.email"],
+        "host": "smtp.ethereal.email",
+        "port": 587
+    },
+
+    "FastMail": {
+        "description": "FastMail",
+        "domains": ["fastmail.fm"],
+        "host": "smtp.fastmail.com",
+        "port": 465,
+        "secure": true
+    },
+
+    "Feishu Mail": {
+        "description": "Feishu Mail (Lark)",
+        "aliases": ["Feishu", "FeishuMail"],
+        "domains": ["www.feishu.cn"],
+        "host": "smtp.feishu.cn",
+        "port": 465,
+        "secure": true
+    },
+
+    "Forward Email": {
+        "description": "Forward Email (email forwarding service)",
+        "aliases": ["FE", "ForwardEmail"],
+        "domains": ["forwardemail.net"],
+        "host": "smtp.forwardemail.net",
+        "port": 465,
+        "secure": true
+    },
+
+    "GandiMail": {
+        "description": "Gandi Mail",
+        "aliases": ["Gandi", "Gandi Mail"],
+        "host": "mail.gandi.net",
+        "port": 587
+    },
+
+    "Gmail": {
+        "description": "Gmail",
+        "aliases": ["Google Mail"],
+        "domains": ["gmail.com", "googlemail.com"],
+        "host": "smtp.gmail.com",
+        "port": 465,
+        "secure": true
+    },
+
+    "GMX": {
+        "description": "GMX Mail",
+        "domains": ["gmx.com", "gmx.net", "gmx.de"],
+        "host": "mail.gmx.com",
+        "port": 587
+    },
+
+    "Godaddy": {
+        "description": "GoDaddy Email (US)",
+        "host": "smtpout.secureserver.net",
+        "port": 25
+    },
+
+    "GodaddyAsia": {
+        "description": "GoDaddy Email (Asia)",
+        "host": "smtp.asia.secureserver.net",
+        "port": 25
+    },
+
+    "GodaddyEurope": {
+        "description": "GoDaddy Email (Europe)",
+        "host": "smtp.europe.secureserver.net",
+        "port": 25
+    },
+
+    "hot.ee": {
+        "description": "Hot.ee (Estonian email provider)",
+        "host": "mail.hot.ee"
+    },
+
+    "Hotmail": {
+        "description": "Outlook.com / Hotmail",
+        "aliases": ["Outlook", "Outlook.com", "Hotmail.com"],
+        "domains": ["hotmail.com", "outlook.com"],
+        "host": "smtp-mail.outlook.com",
+        "port": 587
+    },
+
+    "iCloud": {
+        "description": "iCloud Mail",
+        "aliases": ["Me", "Mac"],
+        "domains": ["me.com", "mac.com"],
+        "host": "smtp.mail.me.com",
+        "port": 587
+    },
+
+    "Infomaniak": {
+        "description": "Infomaniak Mail (Swiss hosting provider)",
+        "host": "mail.infomaniak.com",
+        "domains": ["ik.me", "ikmail.com", "etik.com"],
+        "port": 587
+    },
+
+    "KolabNow": {
+        "description": "KolabNow (secure email service)",
+        "domains": ["kolabnow.com"],
+        "aliases": ["Kolab"],
+        "host": "smtp.kolabnow.com",
+        "port": 465,
+        "secure": true,
+        "authMethod": "LOGIN"
+    },
+
+    "Loopia": {
+        "description": "Loopia (Swedish hosting provider)",
+        "host": "mailcluster.loopia.se",
+        "port": 465
+    },
+
+    "Loops": {
+        "description": "Loops",
+        "host": "smtp.loops.so",
+        "port": 587
+    },
+
+    "mail.ee": {
+        "description": "Mail.ee (Estonian email provider)",
+        "host": "smtp.mail.ee"
+    },
+
+    "Mail.ru": {
+        "description": "Mail.ru",
+        "host": "smtp.mail.ru",
+        "port": 465,
+        "secure": true
+    },
+
+    "Mailcatch.app": {
+        "description": "Mailcatch (email testing service)",
+        "host": "sandbox-smtp.mailcatch.app",
+        "port": 2525
+    },
+
+    "Maildev": {
+        "description": "MailDev (local email testing)",
+        "port": 1025,
+        "ignoreTLS": true
+    },
+
+    "MailerSend": {
+        "description": "MailerSend",
+        "host": "smtp.mailersend.net",
+        "port": 587
+    },
+
+    "Mailgun": {
+        "description": "Mailgun",
+        "host": "smtp.mailgun.org",
+        "port": 465,
+        "secure": true
+    },
+
+    "Mailjet": {
+        "description": "Mailjet",
+        "host": "in.mailjet.com",
+        "port": 587
+    },
+
+    "Mailosaur": {
+        "description": "Mailosaur (email testing service)",
+        "host": "mailosaur.io",
+        "port": 25
+    },
+
+    "Mailtrap": {
+        "description": "Mailtrap",
+        "host": "live.smtp.mailtrap.io",
+        "port": 587
+    },
+
+    "Mandrill": {
+        "description": "Mandrill (by Mailchimp)",
+        "host": "smtp.mandrillapp.com",
+        "port": 587
+    },
+
+    "Naver": {
+        "description": "Naver Mail (Korean email provider)",
+        "host": "smtp.naver.com",
+        "port": 587
+    },
+
+    "OhMySMTP": {
+        "description": "OhMySMTP (email delivery service)",
+        "host": "smtp.ohmysmtp.com",
+        "port": 587,
+        "secure": false
+    },
+
+    "One": {
+        "description": "One.com Email",
+        "host": "send.one.com",
+        "port": 465,
+        "secure": true
+    },
+
+    "OpenMailBox": {
+        "description": "OpenMailBox",
+        "aliases": ["OMB", "openmailbox.org"],
+        "host": "smtp.openmailbox.org",
+        "port": 465,
+        "secure": true
+    },
+
+    "Outlook365": {
+        "description": "Microsoft 365 / Office 365",
+        "host": "smtp.office365.com",
+        "port": 587,
+        "secure": false
+    },
+
+    "Postmark": {
+        "description": "Postmark",
+        "aliases": ["PostmarkApp"],
+        "host": "smtp.postmarkapp.com",
+        "port": 2525
+    },
+
+    "Proton": {
+        "description": "Proton Mail",
+        "aliases": ["ProtonMail", "Proton.me", "Protonmail.com", "Protonmail.ch"],
+        "domains": ["proton.me", "protonmail.com", "pm.me", "protonmail.ch"],
+        "host": "smtp.protonmail.ch",
+        "port": 587,
+        "requireTLS": true
+    },
+
+    "qiye.aliyun": {
+        "description": "Alibaba Mail Enterprise Edition",
+        "host": "smtp.mxhichina.com",
+        "port": "465",
+        "secure": true
+    },
+
+    "QQ": {
+        "description": "QQ Mail",
+        "domains": ["qq.com"],
+        "host": "smtp.qq.com",
+        "port": 465,
+        "secure": true
+    },
+
+    "QQex": {
+        "description": "QQ Enterprise Mail",
+        "aliases": ["QQ Enterprise"],
+        "domains": ["exmail.qq.com"],
+        "host": "smtp.exmail.qq.com",
+        "port": 465,
+        "secure": true
+    },
+
+    "Resend": {
+        "description": "Resend",
+        "host": "smtp.resend.com",
+        "port": 465,
+        "secure": true
+    },
+
+    "Runbox": {
+        "description": "Runbox (Norwegian email provider)",
+        "domains": ["runbox.com"],
+        "host": "smtp.runbox.com",
+        "port": 465,
+        "secure": true
+    },
+
+    "SendCloud": {
+        "description": "SendCloud (Chinese email delivery)",
+        "host": "smtp.sendcloud.net",
+        "port": 2525
+    },
+
+    "SendGrid": {
+        "description": "SendGrid",
+        "host": "smtp.sendgrid.net",
+        "port": 587
+    },
+
+    "SendinBlue": {
+        "description": "Brevo (formerly Sendinblue)",
+        "aliases": ["Brevo"],
+        "host": "smtp-relay.brevo.com",
+        "port": 587
+    },
+
+    "SendPulse": {
+        "description": "SendPulse",
+        "host": "smtp-pulse.com",
+        "port": 465,
+        "secure": true
+    },
+
+    "SES": {
+        "description": "AWS SES US East (N. Virginia)",
+        "host": "email-smtp.us-east-1.amazonaws.com",
+        "port": 465,
+        "secure": true
+    },
+
+    "SES-AP-NORTHEAST-1": {
+        "description": "AWS SES Asia Pacific (Tokyo)",
+        "host": "email-smtp.ap-northeast-1.amazonaws.com",
+        "port": 465,
+        "secure": true
+    },
+
+    "SES-AP-NORTHEAST-2": {
+        "description": "AWS SES Asia Pacific (Seoul)",
+        "host": "email-smtp.ap-northeast-2.amazonaws.com",
+        "port": 465,
+        "secure": true
+    },
+
+    "SES-AP-NORTHEAST-3": {
+        "description": "AWS SES Asia Pacific (Osaka)",
+        "host": "email-smtp.ap-northeast-3.amazonaws.com",
+        "port": 465,
+        "secure": true
+    },
+
+    "SES-AP-SOUTH-1": {
+        "description": "AWS SES Asia Pacific (Mumbai)",
+        "host": "email-smtp.ap-south-1.amazonaws.com",
+        "port": 465,
+        "secure": true
+    },
+
+    "SES-AP-SOUTHEAST-1": {
+        "description": "AWS SES Asia Pacific (Singapore)",
+        "host": "email-smtp.ap-southeast-1.amazonaws.com",
+        "port": 465,
+        "secure": true
+    },
+
+    "SES-AP-SOUTHEAST-2": {
+        "description": "AWS SES Asia Pacific (Sydney)",
+        "host": "email-smtp.ap-southeast-2.amazonaws.com",
+        "port": 465,
+        "secure": true
+    },
+
+    "SES-CA-CENTRAL-1": {
+        "description": "AWS SES Canada (Central)",
+        "host": "email-smtp.ca-central-1.amazonaws.com",
+        "port": 465,
+        "secure": true
+    },
+
+    "SES-EU-CENTRAL-1": {
+        "description": "AWS SES Europe (Frankfurt)",
+        "host": "email-smtp.eu-central-1.amazonaws.com",
+        "port": 465,
+        "secure": true
+    },
+
+    "SES-EU-NORTH-1": {
+        "description": "AWS SES Europe (Stockholm)",
+        "host": "email-smtp.eu-north-1.amazonaws.com",
+        "port": 465,
+        "secure": true
+    },
+
+    "SES-EU-WEST-1": {
+        "description": "AWS SES Europe (Ireland)",
+        "host": "email-smtp.eu-west-1.amazonaws.com",
+        "port": 465,
+        "secure": true
+    },
+
+    "SES-EU-WEST-2": {
+        "description": "AWS SES Europe (London)",
+        "host": "email-smtp.eu-west-2.amazonaws.com",
+        "port": 465,
+        "secure": true
+    },
+
+    "SES-EU-WEST-3": {
+        "description": "AWS SES Europe (Paris)",
+        "host": "email-smtp.eu-west-3.amazonaws.com",
+        "port": 465,
+        "secure": true
+    },
+
+    "SES-SA-EAST-1": {
+        "description": "AWS SES South America (São Paulo)",
+        "host": "email-smtp.sa-east-1.amazonaws.com",
+        "port": 465,
+        "secure": true
+    },
+
+    "SES-US-EAST-1": {
+        "description": "AWS SES US East (N. Virginia)",
+        "host": "email-smtp.us-east-1.amazonaws.com",
+        "port": 465,
+        "secure": true
+    },
+
+    "SES-US-EAST-2": {
+        "description": "AWS SES US East (Ohio)",
+        "host": "email-smtp.us-east-2.amazonaws.com",
+        "port": 465,
+        "secure": true
+    },
+
+    "SES-US-GOV-EAST-1": {
+        "description": "AWS SES GovCloud (US-East)",
+        "host": "email-smtp.us-gov-east-1.amazonaws.com",
+        "port": 465,
+        "secure": true
+    },
+
+    "SES-US-GOV-WEST-1": {
+        "description": "AWS SES GovCloud (US-West)",
+        "host": "email-smtp.us-gov-west-1.amazonaws.com",
+        "port": 465,
+        "secure": true
+    },
+
+    "SES-US-WEST-1": {
+        "description": "AWS SES US West (N. California)",
+        "host": "email-smtp.us-west-1.amazonaws.com",
+        "port": 465,
+        "secure": true
+    },
+
+    "SES-US-WEST-2": {
+        "description": "AWS SES US West (Oregon)",
+        "host": "email-smtp.us-west-2.amazonaws.com",
+        "port": 465,
+        "secure": true
+    },
+
+    "Seznam": {
+        "description": "Seznam Email (Czech email provider)",
+        "aliases": ["Seznam Email"],
+        "domains": ["seznam.cz", "email.cz", "post.cz", "spoluzaci.cz"],
+        "host": "smtp.seznam.cz",
+        "port": 465,
+        "secure": true
+    },
+
+    "SMTP2GO": {
+        "description": "SMTP2GO",
+        "host": "mail.smtp2go.com",
+        "port": 2525
+    },
+
+    "Sparkpost": {
+        "description": "SparkPost",
+        "aliases": ["SparkPost", "SparkPost Mail"],
+        "domains": ["sparkpost.com"],
+        "host": "smtp.sparkpostmail.com",
+        "port": 587,
+        "secure": false
+    },
+
+    "Tipimail": {
+        "description": "Tipimail (email delivery service)",
+        "host": "smtp.tipimail.com",
+        "port": 587
+    },
+
+    "Tutanota": {
+        "description": "Tutanota (Tuta Mail)",
+        "domains": ["tutanota.com", "tuta.com", "tutanota.de", "tuta.io"],
+        "host": "smtp.tutanota.com",
+        "port": 465,
+        "secure": true
+    },
+
+    "Yahoo": {
+        "description": "Yahoo Mail",
+        "domains": ["yahoo.com"],
+        "host": "smtp.mail.yahoo.com",
+        "port": 465,
+        "secure": true
+    },
+
+    "Yandex": {
+        "description": "Yandex Mail",
+        "domains": ["yandex.ru"],
+        "host": "smtp.yandex.ru",
+        "port": 465,
+        "secure": true
+    },
+
+    "Zimbra": {
+        "description": "Zimbra Mail Server",
+        "aliases": ["Zimbra Collaboration"],
+        "host": "smtp.zimbra.com",
+        "port": 587,
+        "requireTLS": true
+    },
+
+    "Zoho": {
+        "description": "Zoho Mail",
+        "host": "smtp.zoho.com",
+        "port": 465,
+        "secure": true,
+        "authMethod": "LOGIN"
+    }
+}
diff --git a/backend/node_modules/nodemailer/lib/xoauth2/index.js b/backend/node_modules/nodemailer/lib/xoauth2/index.js
new file mode 100644
index 0000000..93cf70a
--- /dev/null
+++ b/backend/node_modules/nodemailer/lib/xoauth2/index.js
@@ -0,0 +1,427 @@
+'use strict';
+
+const Stream = require('stream').Stream;
+const nmfetch = require('../fetch');
+const crypto = require('crypto');
+const shared = require('../shared');
+
+/**
+ * XOAUTH2 access_token generator for Gmail.
+ * Create client ID for web applications in Google API console to use it.
+ * See Offline Access for receiving the needed refreshToken for an user
+ * https://developers.google.com/accounts/docs/OAuth2WebServer#offline
+ *
+ * Usage for generating access tokens with a custom method using provisionCallback:
+ * provisionCallback(user, renew, callback)
+ *   * user is the username to get the token for
+ *   * renew is a boolean that if true indicates that existing token failed and needs to be renewed
+ *   * callback is the callback to run with (error, accessToken [, expires])
+ *     * accessToken is a string
+ *     * expires is an optional expire time in milliseconds
+ * If provisionCallback is used, then Nodemailer does not try to attempt generating the token by itself
+ *
+ * @constructor
+ * @param {Object} options Client information for token generation
+ * @param {String} options.user User e-mail address
+ * @param {String} options.clientId Client ID value
+ * @param {String} options.clientSecret Client secret value
+ * @param {String} options.refreshToken Refresh token for an user
+ * @param {String} options.accessUrl Endpoint for token generation, defaults to 'https://accounts.google.com/o/oauth2/token'
+ * @param {String} options.accessToken An existing valid accessToken
+ * @param {String} options.privateKey Private key for JSW
+ * @param {Number} options.expires Optional Access Token expire time in ms
+ * @param {Number} options.timeout Optional TTL for Access Token in seconds
+ * @param {Function} options.provisionCallback Function to run when a new access token is required
+ */
+class XOAuth2 extends Stream {
+    constructor(options, logger) {
+        super();
+
+        this.options = options || {};
+
+        if (options && options.serviceClient) {
+            if (!options.privateKey || !options.user) {
+                setImmediate(() => this.emit('error', new Error('Options "privateKey" and "user" are required for service account!')));
+                return;
+            }
+
+            let serviceRequestTimeout = Math.min(Math.max(Number(this.options.serviceRequestTimeout) || 0, 0), 3600);
+            this.options.serviceRequestTimeout = serviceRequestTimeout || 5 * 60;
+        }
+
+        this.logger = shared.getLogger(
+            {
+                logger
+            },
+            {
+                component: this.options.component || 'OAuth2'
+            }
+        );
+
+        this.provisionCallback = typeof this.options.provisionCallback === 'function' ? this.options.provisionCallback : false;
+
+        this.options.accessUrl = this.options.accessUrl || 'https://accounts.google.com/o/oauth2/token';
+        this.options.customHeaders = this.options.customHeaders || {};
+        this.options.customParams = this.options.customParams || {};
+
+        this.accessToken = this.options.accessToken || false;
+
+        if (this.options.expires && Number(this.options.expires)) {
+            this.expires = this.options.expires;
+        } else {
+            let timeout = Math.max(Number(this.options.timeout) || 0, 0);
+            this.expires = (timeout && Date.now() + timeout * 1000) || 0;
+        }
+
+        this.renewing = false; // Track if renewal is in progress
+        this.renewalQueue = []; // Queue for pending requests during renewal
+    }
+
+    /**
+     * Returns or generates (if previous has expired) a XOAuth2 token
+     *
+     * @param {Boolean} renew If false then use cached access token (if available)
+     * @param {Function} callback Callback function with error object and token string
+     */
+    getToken(renew, callback) {
+        if (!renew && this.accessToken && (!this.expires || this.expires > Date.now())) {
+            this.logger.debug(
+                {
+                    tnx: 'OAUTH2',
+                    user: this.options.user,
+                    action: 'reuse'
+                },
+                'Reusing existing access token for %s',
+                this.options.user
+            );
+            return callback(null, this.accessToken);
+        }
+
+        // check if it is possible to renew, if not, return the current token or error
+        if (!this.provisionCallback && !this.options.refreshToken && !this.options.serviceClient) {
+            if (this.accessToken) {
+                this.logger.debug(
+                    {
+                        tnx: 'OAUTH2',
+                        user: this.options.user,
+                        action: 'reuse'
+                    },
+                    'Reusing existing access token (no refresh capability) for %s',
+                    this.options.user
+                );
+                return callback(null, this.accessToken);
+            }
+            this.logger.error(
+                {
+                    tnx: 'OAUTH2',
+                    user: this.options.user,
+                    action: 'renew'
+                },
+                'Cannot renew access token for %s: No refresh mechanism available',
+                this.options.user
+            );
+            return callback(new Error("Can't create new access token for user"));
+        }
+
+        // If renewal already in progress, queue this request instead of starting another
+        if (this.renewing) {
+            return this.renewalQueue.push({ renew, callback });
+        }
+
+        this.renewing = true;
+
+        // Handles token renewal completion - processes queued requests and cleans up
+        const generateCallback = (err, accessToken) => {
+            this.renewalQueue.forEach(item => item.callback(err, accessToken));
+            this.renewalQueue = [];
+            this.renewing = false;
+
+            if (err) {
+                this.logger.error(
+                    {
+                        err,
+                        tnx: 'OAUTH2',
+                        user: this.options.user,
+                        action: 'renew'
+                    },
+                    'Failed generating new Access Token for %s',
+                    this.options.user
+                );
+            } else {
+                this.logger.info(
+                    {
+                        tnx: 'OAUTH2',
+                        user: this.options.user,
+                        action: 'renew'
+                    },
+                    'Generated new Access Token for %s',
+                    this.options.user
+                );
+            }
+            // Complete original request
+            callback(err, accessToken);
+        };
+
+        if (this.provisionCallback) {
+            this.provisionCallback(this.options.user, !!renew, (err, accessToken, expires) => {
+                if (!err && accessToken) {
+                    this.accessToken = accessToken;
+                    this.expires = expires || 0;
+                }
+                generateCallback(err, accessToken);
+            });
+        } else {
+            this.generateToken(generateCallback);
+        }
+    }
+
+    /**
+     * Updates token values
+     *
+     * @param {String} accessToken New access token
+     * @param {Number} timeout Access token lifetime in seconds
+     *
+     * Emits 'token': { user: User email-address, accessToken: the new accessToken, timeout: TTL in seconds}
+     */
+    updateToken(accessToken, timeout) {
+        this.accessToken = accessToken;
+        timeout = Math.max(Number(timeout) || 0, 0);
+        this.expires = (timeout && Date.now() + timeout * 1000) || 0;
+
+        this.emit('token', {
+            user: this.options.user,
+            accessToken: accessToken || '',
+            expires: this.expires
+        });
+    }
+
+    /**
+     * Generates a new XOAuth2 token with the credentials provided at initialization
+     *
+     * @param {Function} callback Callback function with error object and token string
+     */
+    generateToken(callback) {
+        let urlOptions;
+        let loggedUrlOptions;
+        if (this.options.serviceClient) {
+            // service account - https://developers.google.com/identity/protocols/OAuth2ServiceAccount
+            let iat = Math.floor(Date.now() / 1000); // unix time
+            let tokenData = {
+                iss: this.options.serviceClient,
+                scope: this.options.scope || 'https://mail.google.com/',
+                sub: this.options.user,
+                aud: this.options.accessUrl,
+                iat,
+                exp: iat + this.options.serviceRequestTimeout
+            };
+            let token;
+            try {
+                token = this.jwtSignRS256(tokenData);
+            } catch (err) {
+                return callback(new Error("Can't generate token. Check your auth options"));
+            }
+
+            urlOptions = {
+                grant_type: 'urn:ietf:params:oauth:grant-type:jwt-bearer',
+                assertion: token
+            };
+
+            loggedUrlOptions = {
+                grant_type: 'urn:ietf:params:oauth:grant-type:jwt-bearer',
+                assertion: tokenData
+            };
+        } else {
+            if (!this.options.refreshToken) {
+                return callback(new Error("Can't create new access token for user"));
+            }
+
+            // web app - https://developers.google.com/identity/protocols/OAuth2WebServer
+            urlOptions = {
+                client_id: this.options.clientId || '',
+                client_secret: this.options.clientSecret || '',
+                refresh_token: this.options.refreshToken,
+                grant_type: 'refresh_token'
+            };
+
+            loggedUrlOptions = {
+                client_id: this.options.clientId || '',
+                client_secret: (this.options.clientSecret || '').substr(0, 6) + '...',
+                refresh_token: (this.options.refreshToken || '').substr(0, 6) + '...',
+                grant_type: 'refresh_token'
+            };
+        }
+
+        Object.keys(this.options.customParams).forEach(key => {
+            urlOptions[key] = this.options.customParams[key];
+            loggedUrlOptions[key] = this.options.customParams[key];
+        });
+
+        this.logger.debug(
+            {
+                tnx: 'OAUTH2',
+                user: this.options.user,
+                action: 'generate'
+            },
+            'Requesting token using: %s',
+            JSON.stringify(loggedUrlOptions)
+        );
+
+        this.postRequest(this.options.accessUrl, urlOptions, this.options, (error, body) => {
+            let data;
+
+            if (error) {
+                return callback(error);
+            }
+
+            try {
+                data = JSON.parse(body.toString());
+            } catch (E) {
+                return callback(E);
+            }
+
+            if (!data || typeof data !== 'object') {
+                this.logger.debug(
+                    {
+                        tnx: 'OAUTH2',
+                        user: this.options.user,
+                        action: 'post'
+                    },
+                    'Response: %s',
+                    (body || '').toString()
+                );
+                return callback(new Error('Invalid authentication response'));
+            }
+
+            let logData = {};
+            Object.keys(data).forEach(key => {
+                if (key !== 'access_token') {
+                    logData[key] = data[key];
+                } else {
+                    logData[key] = (data[key] || '').toString().substr(0, 6) + '...';
+                }
+            });
+
+            this.logger.debug(
+                {
+                    tnx: 'OAUTH2',
+                    user: this.options.user,
+                    action: 'post'
+                },
+                'Response: %s',
+                JSON.stringify(logData)
+            );
+
+            if (data.error) {
+                // Error Response : https://tools.ietf.org/html/rfc6749#section-5.2
+                let errorMessage = data.error;
+                if (data.error_description) {
+                    errorMessage += ': ' + data.error_description;
+                }
+                if (data.error_uri) {
+                    errorMessage += ' (' + data.error_uri + ')';
+                }
+                return callback(new Error(errorMessage));
+            }
+
+            if (data.access_token) {
+                this.updateToken(data.access_token, data.expires_in);
+                return callback(null, this.accessToken);
+            }
+
+            return callback(new Error('No access token'));
+        });
+    }
+
+    /**
+     * Converts an access_token and user id into a base64 encoded XOAuth2 token
+     *
+     * @param {String} [accessToken] Access token string
+     * @return {String} Base64 encoded token for IMAP or SMTP login
+     */
+    buildXOAuth2Token(accessToken) {
+        let authData = ['user=' + (this.options.user || ''), 'auth=Bearer ' + (accessToken || this.accessToken), '', ''];
+        return Buffer.from(authData.join('\x01'), 'utf-8').toString('base64');
+    }
+
+    /**
+     * Custom POST request handler.
+     * This is only needed to keep paths short in Windows – usually this module
+     * is a dependency of a dependency and if it tries to require something
+     * like the request module the paths get way too long to handle for Windows.
+     * As we do only a simple POST request we do not actually require complicated
+     * logic support (no redirects, no nothing) anyway.
+     *
+     * @param {String} url Url to POST to
+     * @param {String|Buffer} payload Payload to POST
+     * @param {Function} callback Callback function with (err, buff)
+     */
+    postRequest(url, payload, params, callback) {
+        let returned = false;
+
+        let chunks = [];
+        let chunklen = 0;
+
+        let req = nmfetch(url, {
+            method: 'post',
+            headers: params.customHeaders,
+            body: payload,
+            allowErrorResponse: true
+        });
+
+        req.on('readable', () => {
+            let chunk;
+            while ((chunk = req.read()) !== null) {
+                chunks.push(chunk);
+                chunklen += chunk.length;
+            }
+        });
+
+        req.once('error', err => {
+            if (returned) {
+                return;
+            }
+            returned = true;
+            return callback(err);
+        });
+
+        req.once('end', () => {
+            if (returned) {
+                return;
+            }
+            returned = true;
+            return callback(null, Buffer.concat(chunks, chunklen));
+        });
+    }
+
+    /**
+     * Encodes a buffer or a string into Base64url format
+     *
+     * @param {Buffer|String} data The data to convert
+     * @return {String} The encoded string
+     */
+    toBase64URL(data) {
+        if (typeof data === 'string') {
+            data = Buffer.from(data);
+        }
+
+        return data
+            .toString('base64')
+            .replace(/[=]+/g, '') // remove '='s
+            .replace(/\+/g, '-') // '+' → '-'
+            .replace(/\//g, '_'); // '/' → '_'
+    }
+
+    /**
+     * Creates a JSON Web Token signed with RS256 (SHA256 + RSA)
+     *
+     * @param {Object} payload The payload to include in the generated token
+     * @return {String} The generated and signed token
+     */
+    jwtSignRS256(payload) {
+        payload = ['{"alg":"RS256","typ":"JWT"}', JSON.stringify(payload)].map(val => this.toBase64URL(val)).join('.');
+        let signature = crypto.createSign('RSA-SHA256').update(payload).sign(this.options.privateKey);
+        return payload + '.' + this.toBase64URL(signature);
+    }
+}
+
+module.exports = XOAuth2;
diff --git a/backend/node_modules/nodemailer/package.json b/backend/node_modules/nodemailer/package.json
new file mode 100644
index 0000000..a094ad0
--- /dev/null
+++ b/backend/node_modules/nodemailer/package.json
@@ -0,0 +1,43 @@
+{
+    "name": "nodemailer",
+    "version": "7.0.6",
+    "description": "Easy as cake e-mail sending from your Node.js applications",
+    "main": "lib/nodemailer.js",
+    "scripts": {
+        "test": "node --test --test-concurrency=1 test/**/*.test.js test/**/*-test.js",
+        "test:coverage": "c8 node --test --test-concurrency=1 test/**/*.test.js test/**/*-test.js",
+        "lint": "eslint .",
+        "update": "rm -rf node_modules/ package-lock.json && ncu -u && npm install"
+    },
+    "repository": {
+        "type": "git",
+        "url": "https://github.com/nodemailer/nodemailer.git"
+    },
+    "keywords": [
+        "Nodemailer"
+    ],
+    "author": "Andris Reinman",
+    "license": "MIT-0",
+    "bugs": {
+        "url": "https://github.com/nodemailer/nodemailer/issues"
+    },
+    "homepage": "https://nodemailer.com/",
+    "devDependencies": {
+        "@aws-sdk/client-sesv2": "3.876.0",
+        "bunyan": "1.8.15",
+        "c8": "10.1.3",
+        "eslint": "8.57.0",
+        "eslint-config-nodemailer": "1.2.0",
+        "eslint-config-prettier": "9.1.0",
+        "libbase64": "1.3.0",
+        "libmime": "5.3.7",
+        "libqp": "2.1.1",
+        "nodemailer-ntlm-auth": "1.0.4",
+        "proxy": "1.0.2",
+        "proxy-test-server": "1.0.0",
+        "smtp-server": "3.14.0"
+    },
+    "engines": {
+        "node": ">=6.0.0"
+    }
+}
diff --git a/backend/node_modules/object-assign/index.js b/backend/node_modules/object-assign/index.js
new file mode 100644
index 0000000..0930cf8
--- /dev/null
+++ b/backend/node_modules/object-assign/index.js
@@ -0,0 +1,90 @@
+/*
+object-assign
+(c) Sindre Sorhus
+@license MIT
+*/
+
+'use strict';
+/* eslint-disable no-unused-vars */
+var getOwnPropertySymbols = Object.getOwnPropertySymbols;
+var hasOwnProperty = Object.prototype.hasOwnProperty;
+var propIsEnumerable = Object.prototype.propertyIsEnumerable;
+
+function toObject(val) {
+	if (val === null || val === undefined) {
+		throw new TypeError('Object.assign cannot be called with null or undefined');
+	}
+
+	return Object(val);
+}
+
+function shouldUseNative() {
+	try {
+		if (!Object.assign) {
+			return false;
+		}
+
+		// Detect buggy property enumeration order in older V8 versions.
+
+		// https://bugs.chromium.org/p/v8/issues/detail?id=4118
+		var test1 = new String('abc');  // eslint-disable-line no-new-wrappers
+		test1[5] = 'de';
+		if (Object.getOwnPropertyNames(test1)[0] === '5') {
+			return false;
+		}
+
+		// https://bugs.chromium.org/p/v8/issues/detail?id=3056
+		var test2 = {};
+		for (var i = 0; i < 10; i++) {
+			test2['_' + String.fromCharCode(i)] = i;
+		}
+		var order2 = Object.getOwnPropertyNames(test2).map(function (n) {
+			return test2[n];
+		});
+		if (order2.join('') !== '0123456789') {
+			return false;
+		}
+
+		// https://bugs.chromium.org/p/v8/issues/detail?id=3056
+		var test3 = {};
+		'abcdefghijklmnopqrst'.split('').forEach(function (letter) {
+			test3[letter] = letter;
+		});
+		if (Object.keys(Object.assign({}, test3)).join('') !==
+				'abcdefghijklmnopqrst') {
+			return false;
+		}
+
+		return true;
+	} catch (err) {
+		// We don't expect any of the above to throw, but better to be safe.
+		return false;
+	}
+}
+
+module.exports = shouldUseNative() ? Object.assign : function (target, source) {
+	var from;
+	var to = toObject(target);
+	var symbols;
+
+	for (var s = 1; s < arguments.length; s++) {
+		from = Object(arguments[s]);
+
+		for (var key in from) {
+			if (hasOwnProperty.call(from, key)) {
+				to[key] = from[key];
+			}
+		}
+
+		if (getOwnPropertySymbols) {
+			symbols = getOwnPropertySymbols(from);
+			for (var i = 0; i < symbols.length; i++) {
+				if (propIsEnumerable.call(from, symbols[i])) {
+					to[symbols[i]] = from[symbols[i]];
+				}
+			}
+		}
+	}
+
+	return to;
+};
diff --git a/backend/node_modules/object-assign/license b/backend/node_modules/object-assign/license
new file mode 100644
index 0000000..654d0bf
--- /dev/null
+++ b/backend/node_modules/object-assign/license
@@ -0,0 +1,21 @@
+The MIT License (MIT)
+
+Copyright (c) Sindre Sorhus <sindresorhus@gmail.com> (sindresorhus.com)
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
diff --git a/backend/node_modules/object-assign/package.json b/backend/node_modules/object-assign/package.json
new file mode 100644
index 0000000..503eb1e
--- /dev/null
+++ b/backend/node_modules/object-assign/package.json
@@ -0,0 +1,42 @@
+{
+  "name": "object-assign",
+  "version": "4.1.1",
+  "description": "ES2015 `Object.assign()` ponyfill",
+  "license": "MIT",
+  "repository": "sindresorhus/object-assign",
+  "author": {
+    "name": "Sindre Sorhus",
+    "email": "sindresorhus@gmail.com",
+    "url": "sindresorhus.com"
+  },
+  "engines": {
+    "node": ">=0.10.0"
+  },
+  "scripts": {
+    "test": "xo && ava",
+    "bench": "matcha bench.js"
+  },
+  "files": [
+    "index.js"
+  ],
+  "keywords": [
+    "object",
+    "assign",
+    "extend",
+    "properties",
+    "es2015",
+    "ecmascript",
+    "harmony",
+    "ponyfill",
+    "prollyfill",
+    "polyfill",
+    "shim",
+    "browser"
+  ],
+  "devDependencies": {
+    "ava": "^0.16.0",
+    "lodash": "^4.16.4",
+    "matcha": "^0.7.0",
+    "xo": "^0.16.0"
+  }
+}
diff --git a/backend/node_modules/object-assign/readme.md b/backend/node_modules/object-assign/readme.md
new file mode 100644
index 0000000..1be09d3
--- /dev/null
+++ b/backend/node_modules/object-assign/readme.md
@@ -0,0 +1,61 @@
+# object-assign [![Build Status](https://travis-ci.org/sindresorhus/object-assign.svg?branch=master)](https://travis-ci.org/sindresorhus/object-assign)
+
+> ES2015 [`Object.assign()`](http://www.2ality.com/2014/01/object-assign.html) [ponyfill](https://ponyfill.com)
+
+
+## Use the built-in
+
+Node.js 4 and up, as well as every evergreen browser (Chrome, Edge, Firefox, Opera, Safari),
+support `Object.assign()` :tada:. If you target only those environments, then by all
+means, use `Object.assign()` instead of this package.
+
+
+## Install
+
+```
+$ npm install --save object-assign
+```
+
+
+## Usage
+
+```js
+const objectAssign = require('object-assign');
+
+objectAssign({foo: 0}, {bar: 1});
+//=> {foo: 0, bar: 1}
+
+// multiple sources
+objectAssign({foo: 0}, {bar: 1}, {baz: 2});
+//=> {foo: 0, bar: 1, baz: 2}
+
+// overwrites equal keys
+objectAssign({foo: 0}, {foo: 1}, {foo: 2});
+//=> {foo: 2}
+
+// ignores null and undefined sources
+objectAssign({foo: 0}, null, {bar: 1}, undefined);
+//=> {foo: 0, bar: 1}
+```
+
+
+## API
+
+### objectAssign(target, [source, ...])
+
+Assigns enumerable own properties of `source` objects to the `target` object and returns the `target` object. Additional `source` objects will overwrite previous ones.
+
+
+## Resources
+
+- [ES2015 spec - Object.assign](https://people.mozilla.org/~jorendorff/es6-draft.html#sec-object.assign)
+
+
+## Related
+
+- [deep-assign](https://github.com/sindresorhus/deep-assign) - Recursive `Object.assign()`
+
+
+## License
+
+MIT © [Sindre Sorhus](https://sindresorhus.com)
diff --git a/backend/node_modules/object-inspect/.eslintrc b/backend/node_modules/object-inspect/.eslintrc
new file mode 100644
index 0000000..21f9039
--- /dev/null
+++ b/backend/node_modules/object-inspect/.eslintrc
@@ -0,0 +1,53 @@
+{
+    "root": true,
+    "extends": "@ljharb",
+    "rules": {
+        "complexity": 0,
+        "func-style": [2, "declaration"],
+        "indent": [2, 4],
+        "max-lines": 1,
+        "max-lines-per-function": 1,
+        "max-params": [2, 4],
+        "max-statements": 0,
+        "max-statements-per-line": [2, { "max": 2 }],
+        "no-magic-numbers": 0,
+        "no-param-reassign": 1,
+        "strict": 0, // TODO
+    },
+    "overrides": [
+        {
+            "files": ["test/**", "test-*", "example/**"],
+            "extends": "@ljharb/eslint-config/tests",
+            "rules": {
+              "id-length": 0,
+            },
+        },
+        {
+            "files": ["example/**"],
+            "rules": {
+                "no-console": 0,
+            },
+        },
+        {
+            "files": ["test/browser/**"],
+            "env": {
+                "browser": true,
+            },
+        },
+        {
+            "files": ["test/bigint*"],
+            "rules": {
+                "new-cap": [2, { "capIsNewExceptions": ["BigInt"] }],
+            },
+        },
+        {
+            "files": "index.js",
+            "globals": {
+                "HTMLElement": false,
+            },
+            "rules": {
+                "no-use-before-define": 1,
+            },
+        },
+    ],
+}
diff --git a/backend/node_modules/object-inspect/.github/FUNDING.yml b/backend/node_modules/object-inspect/.github/FUNDING.yml
new file mode 100644
index 0000000..730276b
--- /dev/null
+++ b/backend/node_modules/object-inspect/.github/FUNDING.yml
@@ -0,0 +1,12 @@
+# These are supported funding model platforms
+
+github: [ljharb]
+patreon: # Replace with a single Patreon username
+open_collective: # Replace with a single Open Collective username
+ko_fi: # Replace with a single Ko-fi username
+tidelift: npm/object-inspect
+community_bridge: # Replace with a single Community Bridge project-name e.g., cloud-foundry
+liberapay: # Replace with a single Liberapay username
+issuehunt: # Replace with a single IssueHunt username
+otechie: # Replace with a single Otechie username
+custom: # Replace with up to 4 custom sponsorship URLs e.g., ['link1', 'link2']
diff --git a/backend/node_modules/object-inspect/.nycrc b/backend/node_modules/object-inspect/.nycrc
new file mode 100644
index 0000000..58a5db7
--- /dev/null
+++ b/backend/node_modules/object-inspect/.nycrc
@@ -0,0 +1,13 @@
+{
+  "all": true,
+  "check-coverage": false,
+  "instrumentation": false,
+  "sourceMap": false,
+  "reporter": ["text-summary", "text", "html", "json"],
+  "exclude": [
+    "coverage",
+    "example",
+    "test",
+    "test-core-js.js"
+  ]
+}
diff --git a/backend/node_modules/object-inspect/CHANGELOG.md b/backend/node_modules/object-inspect/CHANGELOG.md
new file mode 100644
index 0000000..bdf9002
--- /dev/null
+++ b/backend/node_modules/object-inspect/CHANGELOG.md
@@ -0,0 +1,424 @@
+# Changelog
+
+All notable changes to this project will be documented in this file.
+
+The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/)
+and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
+
+## [v1.13.4](https://github.com/inspect-js/object-inspect/compare/v1.13.3...v1.13.4) - 2025-02-04
+
+### Commits
+
+- [Fix] avoid being fooled by a `Symbol.toStringTag` [`fa5870d`](https://github.com/inspect-js/object-inspect/commit/fa5870da468a525d2f20193700f70752f506cbf7)
+- [Tests] fix tests in node v6.0 - v6.4 [`2abfe1b`](https://github.com/inspect-js/object-inspect/commit/2abfe1bc3c69f9293c07c5cd65a9d7d87a628b84)
+- [Dev Deps] update `es-value-fixtures`, `for-each`, `has-symbols` [`3edfb01`](https://github.com/inspect-js/object-inspect/commit/3edfb01cc8cce220fba0dfdfe2dc8bc955758cdd)
+
+## [v1.13.3](https://github.com/inspect-js/object-inspect/compare/v1.13.2...v1.13.3) - 2024-11-09
+
+### Commits
+
+- [actions] split out node 10-20, and 20+ [`44395a8`](https://github.com/inspect-js/object-inspect/commit/44395a8fc1deda6718a5e125e86b9ffcaa1c7580)
+- [Fix] `quoteStyle`: properly escape only the containing quotes [`5137f8f`](https://github.com/inspect-js/object-inspect/commit/5137f8f7bea69a7fc671bb683fd35f244f38fc52)
+- [Refactor] clean up `quoteStyle` code [`450680c`](https://github.com/inspect-js/object-inspect/commit/450680cd50de4e689ee3b8e1d6db3a1bcf3fc18c)
+- [Tests] add `quoteStyle` escaping tests [`e997c59`](https://github.com/inspect-js/object-inspect/commit/e997c595aeaea84fd98ca35d7e1c3b5ab3ae26e0)
+- [Dev Deps] update `auto-changelog`, `es-value-fixtures`, `tape` [`d5a469c`](https://github.com/inspect-js/object-inspect/commit/d5a469c99ec07ccaeafc36ac4b36a93285086d48)
+- [Tests] replace `aud` with `npm audit` [`fb7815f`](https://github.com/inspect-js/object-inspect/commit/fb7815f9b72cae277a04f65bbb0543f85b88be62)
+- [Dev Deps] update `mock-property` [`11c817b`](https://github.com/inspect-js/object-inspect/commit/11c817bf10392aa017755962ba6bc89d731359ee)
+
+## [v1.13.2](https://github.com/inspect-js/object-inspect/compare/v1.13.1...v1.13.2) - 2024-06-21
+
+### Commits
+
+- [readme] update badges [`8a51e6b`](https://github.com/inspect-js/object-inspect/commit/8a51e6bedaf389ec40cc4659e9df53e8543d176e)
+- [Dev Deps] update `@ljharb/eslint-config`, `tape` [`ef05f58`](https://github.com/inspect-js/object-inspect/commit/ef05f58c9761a41416ab907299bf0fa79517014b)
+- [Dev Deps] update `error-cause`, `has-tostringtag`, `tape` [`c0c6c26`](https://github.com/inspect-js/object-inspect/commit/c0c6c26c44cee6671f7c5d43d2b91d27c5c00d90)
+- [Fix] Don't throw when `global` is not defined [`d4d0965`](https://github.com/inspect-js/object-inspect/commit/d4d096570f7dbd0e03266a96de11d05eb7b63e0f)
+- [meta] add missing `engines.node` [`17a352a`](https://github.com/inspect-js/object-inspect/commit/17a352af6fe1ba6b70a19081674231eb1a50c940)
+- [Dev Deps] update `globalthis` [`9c08884`](https://github.com/inspect-js/object-inspect/commit/9c08884aa662a149e2f11403f413927736b97da7)
+- [Dev Deps] update `error-cause` [`6af352d`](https://github.com/inspect-js/object-inspect/commit/6af352d7c3929a4cc4c55768c27bf547a5e900f4)
+- [Dev Deps] update `npmignore` [`94e617d`](https://github.com/inspect-js/object-inspect/commit/94e617d38831722562fa73dff4c895746861d267)
+- [Dev Deps] update `mock-property` [`2ac24d7`](https://github.com/inspect-js/object-inspect/commit/2ac24d7e58cd388ad093c33249e413e05bbfd6c3)
+- [Dev Deps] update `tape` [`46125e5`](https://github.com/inspect-js/object-inspect/commit/46125e58f1d1dcfb170ed3d1ea69da550ea8d77b)
+
+## [v1.13.1](https://github.com/inspect-js/object-inspect/compare/v1.13.0...v1.13.1) - 2023-10-19
+
+### Commits
+
+- [Fix] in IE 8, global can !== window despite them being prototypes of each other [`30d0859`](https://github.com/inspect-js/object-inspect/commit/30d0859dc4606cf75c2410edcd5d5c6355f8d372)
+
+## [v1.13.0](https://github.com/inspect-js/object-inspect/compare/v1.12.3...v1.13.0) - 2023-10-14
+
+### Commits
+
+- [New] add special handling for the global object [`431bab2`](https://github.com/inspect-js/object-inspect/commit/431bab21a490ee51d35395966a504501e8c685da)
+- [Dev Deps] update `@ljharb/eslint-config`, `aud`, `tape` [`fd4f619`](https://github.com/inspect-js/object-inspect/commit/fd4f6193562b4b0e95dcf5c0201b4e8cbbc4f58d)
+- [Dev Deps] update `mock-property`, `tape` [`b453f6c`](https://github.com/inspect-js/object-inspect/commit/b453f6ceeebf8a1b738a1029754092e0367a4134)
+- [Dev Deps] update `error-cause` [`e8ffc57`](https://github.com/inspect-js/object-inspect/commit/e8ffc577d73b92bb6a4b00c44f14e3319e374888)
+- [Dev Deps] update `tape` [`054b8b9`](https://github.com/inspect-js/object-inspect/commit/054b8b9b98633284cf989e582450ebfbbe53503c)
+- [Dev Deps] temporarily remove `aud` due to breaking change in transitive deps [`2476845`](https://github.com/inspect-js/object-inspect/commit/2476845e0678dd290c541c81cd3dec8420782c52)
+- [Dev Deps] pin `glob`, since v10.3.8+ requires a broken `jackspeak` [`383fa5e`](https://github.com/inspect-js/object-inspect/commit/383fa5eebc0afd705cc778a4b49d8e26452e49a8)
+- [Dev Deps] pin `jackspeak` since 2.1.2+ depends on npm aliases, which kill the install process in npm &lt; 6 [`68c244c`](https://github.com/inspect-js/object-inspect/commit/68c244c5174cdd877e5dcb8ee90aa3f44b2f25be)
+
+## [v1.12.3](https://github.com/inspect-js/object-inspect/compare/v1.12.2...v1.12.3) - 2023-01-12
+
+### Commits
+
+- [Fix] in eg FF 24, collections lack forEach [`75fc226`](https://github.com/inspect-js/object-inspect/commit/75fc22673c82d45f28322b1946bb0eb41b672b7f)
+- [actions] update rebase action to use reusable workflow [`250a277`](https://github.com/inspect-js/object-inspect/commit/250a277a095e9dacc029ab8454dcfc15de549dcd)
+- [Dev Deps] update `aud`, `es-value-fixtures`, `tape` [`66a19b3`](https://github.com/inspect-js/object-inspect/commit/66a19b3209ccc3c5ef4b34c3cb0160e65d1ce9d5)
+- [Dev Deps] update `@ljharb/eslint-config`, `aud`, `error-cause` [`c43d332`](https://github.com/inspect-js/object-inspect/commit/c43d3324b48384a16fd3dc444e5fc589d785bef3)
+- [Tests] add `@pkgjs/support` to `postlint` [`e2618d2`](https://github.com/inspect-js/object-inspect/commit/e2618d22a7a3fa361b6629b53c1752fddc9c4d80)
+
+## [v1.12.2](https://github.com/inspect-js/object-inspect/compare/v1.12.1...v1.12.2) - 2022-05-26
+
+### Commits
+
+- [Fix] use `util.inspect` for a custom inspection symbol method [`e243bf2`](https://github.com/inspect-js/object-inspect/commit/e243bf2eda6c4403ac6f1146fddb14d12e9646c1)
+- [meta] add support info [`ca20ba3`](https://github.com/inspect-js/object-inspect/commit/ca20ba35713c17068ca912a86c542f5e8acb656c)
+- [Fix] ignore `cause` in node v16.9 and v16.10 where it has a bug [`86aa553`](https://github.com/inspect-js/object-inspect/commit/86aa553a4a455562c2c56f1540f0bf857b9d314b)
+
+## [v1.12.1](https://github.com/inspect-js/object-inspect/compare/v1.12.0...v1.12.1) - 2022-05-21
+
+### Commits
+
+- [Tests] use `mock-property` [`4ec8893`](https://github.com/inspect-js/object-inspect/commit/4ec8893ea9bfd28065ca3638cf6762424bf44352)
+- [meta] use `npmignore` to autogenerate an npmignore file [`07f868c`](https://github.com/inspect-js/object-inspect/commit/07f868c10bd25a9d18686528339bb749c211fc9a)
+- [Dev Deps] update `eslint`, `@ljharb/eslint-config`, `aud`, `auto-changelog`, `tape` [`b05244b`](https://github.com/inspect-js/object-inspect/commit/b05244b4f331e00c43b3151bc498041be77ccc91)
+- [Dev Deps] update `@ljharb/eslint-config`, `error-cause`, `es-value-fixtures`, `functions-have-names`, `tape` [`d037398`](https://github.com/inspect-js/object-inspect/commit/d037398dcc5d531532e4c19c4a711ed677f579c1)
+- [Fix] properly handle callable regexes in older engines [`848fe48`](https://github.com/inspect-js/object-inspect/commit/848fe48bd6dd0064ba781ee6f3c5e54a94144c37)
+
+## [v1.12.0](https://github.com/inspect-js/object-inspect/compare/v1.11.1...v1.12.0) - 2021-12-18
+
+### Commits
+
+- [New] add `numericSeparator` boolean option [`2d2d537`](https://github.com/inspect-js/object-inspect/commit/2d2d537f5359a4300ce1c10241369f8024f89e11)
+- [Robustness] cache more prototype methods [`191533d`](https://github.com/inspect-js/object-inspect/commit/191533da8aec98a05eadd73a5a6e979c9c8653e8)
+- [New] ensure an Error’s `cause` is displayed [`53bc2ce`](https://github.com/inspect-js/object-inspect/commit/53bc2cee4e5a9cc4986f3cafa22c0685f340715e)
+- [Dev Deps] update `eslint`, `@ljharb/eslint-config` [`bc164b6`](https://github.com/inspect-js/object-inspect/commit/bc164b6e2e7d36b263970f16f54de63048b84a36)
+- [Robustness] cache `RegExp.prototype.test` [`a314ab8`](https://github.com/inspect-js/object-inspect/commit/a314ab8271b905cbabc594c82914d2485a8daf12)
+- [meta] fix auto-changelog settings [`5ed0983`](https://github.com/inspect-js/object-inspect/commit/5ed0983be72f73e32e2559997517a95525c7e20d)
+
+## [v1.11.1](https://github.com/inspect-js/object-inspect/compare/v1.11.0...v1.11.1) - 2021-12-05
+
+### Commits
+
+- [meta] add `auto-changelog` [`7dbdd22`](https://github.com/inspect-js/object-inspect/commit/7dbdd228401d6025d8b7391476d88aee9ea9bbdf)
+- [actions] reuse common workflows [`c8823bc`](https://github.com/inspect-js/object-inspect/commit/c8823bc0a8790729680709d45fb6e652432e91aa)
+- [Dev Deps] update `eslint`, `@ljharb/eslint-config`, `safe-publish-latest`, `tape` [`7532b12`](https://github.com/inspect-js/object-inspect/commit/7532b120598307497b712890f75af8056f6d37a6)
+- [Refactor] use `has-tostringtag` to behave correctly in the presence of symbol shams [`94abb5d`](https://github.com/inspect-js/object-inspect/commit/94abb5d4e745bf33253942dea86b3e538d2ff6c6)
+- [actions] update codecov uploader [`5ed5102`](https://github.com/inspect-js/object-inspect/commit/5ed51025267a00e53b1341357315490ac4eb0874)
+- [Dev Deps] update `eslint`, `tape` [`37b2ad2`](https://github.com/inspect-js/object-inspect/commit/37b2ad26c08d94bfd01d5d07069a0b28ef4e2ad7)
+- [meta] add `sideEffects` flag [`d341f90`](https://github.com/inspect-js/object-inspect/commit/d341f905ef8bffa6a694cda6ddc5ba343532cd4f)
+
+## [v1.11.0](https://github.com/inspect-js/object-inspect/compare/v1.10.3...v1.11.0) - 2021-07-12
+
+### Commits
+
+- [New] `customInspect`: add `symbol` option, to mimic modern util.inspect behavior [`e973a6e`](https://github.com/inspect-js/object-inspect/commit/e973a6e21f8140c5837cf25e9d89bdde88dc3120)
+- [Dev Deps] update `eslint` [`05f1cb3`](https://github.com/inspect-js/object-inspect/commit/05f1cb3cbcfe1f238e8b51cf9bc294305b7ed793)
+
+## [v1.10.3](https://github.com/inspect-js/object-inspect/compare/v1.10.2...v1.10.3) - 2021-05-07
+
+### Commits
+
+- [Fix] handle core-js Symbol shams [`4acfc2c`](https://github.com/inspect-js/object-inspect/commit/4acfc2c4b503498759120eb517abad6d51c9c5d6)
+- [readme] update badges [`95c323a`](https://github.com/inspect-js/object-inspect/commit/95c323ad909d6cbabb95dd6015c190ba6db9c1f2)
+- [Dev Deps] update `eslint`, `@ljharb/eslint-config`, `aud` [`cb38f48`](https://github.com/inspect-js/object-inspect/commit/cb38f485de6ec7a95109b5a9bbd0a1deba2f6611)
+
+## [v1.10.2](https://github.com/inspect-js/object-inspect/compare/v1.10.1...v1.10.2) - 2021-04-17
+
+### Commits
+
+- [Fix] use a robust check for a boxed Symbol [`87f12d6`](https://github.com/inspect-js/object-inspect/commit/87f12d6e69ce530be04659c81a4cd502943acac5)
+
+## [v1.10.1](https://github.com/inspect-js/object-inspect/compare/v1.10.0...v1.10.1) - 2021-04-17
+
+### Commits
+
+- [Fix] use a robust check for a boxed bigint [`d5ca829`](https://github.com/inspect-js/object-inspect/commit/d5ca8298b6d2e5c7b9334a5b21b96ed95d225c91)
+
+## [v1.10.0](https://github.com/inspect-js/object-inspect/compare/v1.9.0...v1.10.0) - 2021-04-17
+
+### Commits
+
+- [Tests] increase coverage [`d8abb8a`](https://github.com/inspect-js/object-inspect/commit/d8abb8a62c2f084919df994a433b346e0d87a227)
+- [actions] use `node/install` instead of `node/run`; use `codecov` action [`4bfec2e`](https://github.com/inspect-js/object-inspect/commit/4bfec2e30aaef6ddef6cbb1448306f9f8b9520b7)
+- [New] respect `Symbol.toStringTag` on objects [`799b58f`](https://github.com/inspect-js/object-inspect/commit/799b58f536a45e4484633a8e9daeb0330835f175)
+- [Fix] do not allow Symbol.toStringTag to masquerade as builtins [`d6c5b37`](https://github.com/inspect-js/object-inspect/commit/d6c5b37d7e94427796b82432fb0c8964f033a6ab)
+- [New] add `WeakRef` support [`b6d898e`](https://github.com/inspect-js/object-inspect/commit/b6d898ee21868c780a7ee66b28532b5b34ed7f09)
+- [meta] do not publish github action workflow files [`918cdfc`](https://github.com/inspect-js/object-inspect/commit/918cdfc4b6fe83f559ff6ef04fe66201e3ff5cbd)
+- [meta] create `FUNDING.yml` [`0bb5fc5`](https://github.com/inspect-js/object-inspect/commit/0bb5fc516dbcd2cd728bd89cee0b580acc5ce301)
+- [Dev Deps] update `eslint`, `@ljharb/eslint-config`, `aud`, `tape` [`22c8dc0`](https://github.com/inspect-js/object-inspect/commit/22c8dc0cac113d70f4781e49a950070923a671be)
+- [meta] use `prepublishOnly` script for npm 7+ [`e52ee09`](https://github.com/inspect-js/object-inspect/commit/e52ee09e8050b8dbac94ef57f786675567728223)
+- [Dev Deps] update `eslint` [`7c4e6fd`](https://github.com/inspect-js/object-inspect/commit/7c4e6fdedcd27cc980e13c9ad834d05a96f3d40c)
+
+## [v1.9.0](https://github.com/inspect-js/object-inspect/compare/v1.8.0...v1.9.0) - 2020-11-30
+
+### Commits
+
+- [Tests] migrate tests to Github Actions [`d262251`](https://github.com/inspect-js/object-inspect/commit/d262251e13e16d3490b5473672f6b6d6ff86675d)
+- [New] add enumerable own Symbols to plain object output [`ee60c03`](https://github.com/inspect-js/object-inspect/commit/ee60c033088cff9d33baa71e59a362a541b48284)
+- [Tests] add passing tests [`01ac3e4`](https://github.com/inspect-js/object-inspect/commit/01ac3e4b5a30f97875a63dc9b1416b3bd626afc9)
+- [actions] add "Require Allow Edits" action [`c2d7746`](https://github.com/inspect-js/object-inspect/commit/c2d774680cde4ca4af332d84d4121b26f798ba9e)
+- [Dev Deps] update `eslint`, `@ljharb/eslint-config`, `aud`, `core-js` [`70058de`](https://github.com/inspect-js/object-inspect/commit/70058de1579fc54d1d15ed6c2dbe246637ce70ff)
+- [Fix] hex characters in strings should be uppercased, to match node `assert` [`6ab8faa`](https://github.com/inspect-js/object-inspect/commit/6ab8faaa0abc08fe7a8e2afd8b39c6f1f0e00113)
+- [Tests] run `nyc` on all tests [`4c47372`](https://github.com/inspect-js/object-inspect/commit/4c473727879ddc8e28b599202551ddaaf07b6210)
+- [Tests] node 0.8 has an unpredictable property order; fix `groups` test by removing property [`f192069`](https://github.com/inspect-js/object-inspect/commit/f192069a978a3b60e6f0e0d45ac7df260ab9a778)
+- [New] add enumerable properties to Function inspect result, per node’s `assert` [`fd38e1b`](https://github.com/inspect-js/object-inspect/commit/fd38e1bc3e2a1dc82091ce3e021917462eee64fc)
+- [Tests] fix tests for node &lt; 10, due to regex match `groups` [`2ac6462`](https://github.com/inspect-js/object-inspect/commit/2ac6462cc4f72eaa0b63a8cfee9aabe3008b2330)
+- [Dev Deps] update `eslint`, `@ljharb/eslint-config` [`44b59e2`](https://github.com/inspect-js/object-inspect/commit/44b59e2676a7f825ef530dfd19dafb599e3b9456)
+- [Robustness] cache `Symbol.prototype.toString` [`f3c2074`](https://github.com/inspect-js/object-inspect/commit/f3c2074d8f32faf8292587c07c9678ea931703dd)
+- [Dev Deps] update `eslint` [`9411294`](https://github.com/inspect-js/object-inspect/commit/94112944b9245e3302e25453277876402d207e7f)
+- [meta] `require-allow-edits` no longer requires an explicit github token [`36c0220`](https://github.com/inspect-js/object-inspect/commit/36c02205de3c2b0e84d53777c5c9fd54a36c48ab)
+- [actions] update rebase checkout action to v2 [`55a39a6`](https://github.com/inspect-js/object-inspect/commit/55a39a64e944f19c6a7d8efddf3df27700f20d14)
+- [actions] switch Automatic Rebase workflow to `pull_request_target` event [`f59fd3c`](https://github.com/inspect-js/object-inspect/commit/f59fd3cf406c3a7c7ece140904a80bbc6bacfcca)
+- [Dev Deps] update `eslint` [`a492bec`](https://github.com/inspect-js/object-inspect/commit/a492becec644b0155c9c4bc1caf6f9fac11fb2c7)
+
+## [v1.8.0](https://github.com/inspect-js/object-inspect/compare/v1.7.0...v1.8.0) - 2020-06-18
+
+### Fixed
+
+- [New] add `indent` option [`#27`](https://github.com/inspect-js/object-inspect/issues/27)
+
+### Commits
+
+- [Tests] add codecov [`4324cbb`](https://github.com/inspect-js/object-inspect/commit/4324cbb1a2bd7710822a4151ff373570db22453e)
+- [New] add `maxStringLength` option [`b3995cb`](https://github.com/inspect-js/object-inspect/commit/b3995cb71e15b5ee127a3094c43994df9d973502)
+- [New] add `customInspect` option, to disable custom inspect methods [`28b9179`](https://github.com/inspect-js/object-inspect/commit/28b9179ee802bb3b90810100c11637db90c2fb6d)
+- [Tests] add Date and RegExp tests [`3b28eca`](https://github.com/inspect-js/object-inspect/commit/3b28eca57b0367aeadffac604ea09e8bdae7d97b)
+- [actions] add automatic rebasing / merge commit blocking [`0d9c6c0`](https://github.com/inspect-js/object-inspect/commit/0d9c6c044e83475ff0bfffb9d35b149834c83a2e)
+- [Dev Deps] update `eslint`, `@ljharb/eslint-config`, `core-js`, `tape`; add `aud` [`7c204f2`](https://github.com/inspect-js/object-inspect/commit/7c204f22b9e41bc97147f4d32d4cb045b17769a6)
+- [readme] fix repo URLs, remove testling [`34ca9a0`](https://github.com/inspect-js/object-inspect/commit/34ca9a0dabfe75bd311f806a326fadad029909a3)
+- [Fix] when truncating a deep array, note it as `[Array]` instead of just `[Object]` [`f74c82d`](https://github.com/inspect-js/object-inspect/commit/f74c82dd0b35386445510deb250f34c41be3ec0e)
+- [Dev Deps] update `eslint`, `@ljharb/eslint-config`, `tape` [`1a8a5ea`](https://github.com/inspect-js/object-inspect/commit/1a8a5ea069ea2bee89d77caedad83ffa23d35711)
+- [Fix] do not be fooled by a function’s own `toString` method [`7cb5c65`](https://github.com/inspect-js/object-inspect/commit/7cb5c657a976f94715c19c10556a30f15bb7d5d7)
+- [patch] indicate explicitly that anon functions are anonymous, to match node [`81ebdd4`](https://github.com/inspect-js/object-inspect/commit/81ebdd4215005144074bbdff3f6bafa01407910a)
+- [Dev Deps] loosen the `core-js` dep [`e7472e8`](https://github.com/inspect-js/object-inspect/commit/e7472e8e242117670560bd995830c2a4d12080f5)
+- [Dev Deps] update `tape` [`699827e`](https://github.com/inspect-js/object-inspect/commit/699827e6b37258b5203c33c78c009bf4b0e6a66d)
+- [meta] add `safe-publish-latest` [`c5d2868`](https://github.com/inspect-js/object-inspect/commit/c5d2868d6eb33c472f37a20f89ceef2787046088)
+- [Dev Deps] update `@ljharb/eslint-config` [`9199501`](https://github.com/inspect-js/object-inspect/commit/919950195d486114ccebacbdf9d74d7f382693b0)
+
+## [v1.7.0](https://github.com/inspect-js/object-inspect/compare/v1.6.0...v1.7.0) - 2019-11-10
+
+### Commits
+
+- [Tests] use shared travis-ci configs [`19899ed`](https://github.com/inspect-js/object-inspect/commit/19899edbf31f4f8809acf745ce34ad1ce1bfa63b)
+- [Tests] add linting [`a00f057`](https://github.com/inspect-js/object-inspect/commit/a00f057d917f66ea26dd37769c6b810ec4af97e8)
+- [Tests] lint last file [`2698047`](https://github.com/inspect-js/object-inspect/commit/2698047b58af1e2e88061598ef37a75f228dddf6)
+- [Tests] up to `node` `v12.7`, `v11.15`, `v10.16`, `v8.16`, `v6.17` [`589e87a`](https://github.com/inspect-js/object-inspect/commit/589e87a99cadcff4b600e6a303418e9d922836e8)
+- [New] add support for `WeakMap` and `WeakSet` [`3ddb3e4`](https://github.com/inspect-js/object-inspect/commit/3ddb3e4e0c8287130c61a12e0ed9c104b1549306)
+- [meta] clean up license so github can detect it properly [`27527bb`](https://github.com/inspect-js/object-inspect/commit/27527bb801520c9610c68cc3b55d6f20a2bee56d)
+- [Tests] cover `util.inspect.custom` [`36d47b9`](https://github.com/inspect-js/object-inspect/commit/36d47b9c59056a57ef2f1491602c726359561800)
+- [Dev Deps] update `eslint`, `@ljharb/eslint-config`, `core-js`, `tape` [`b614eaa`](https://github.com/inspect-js/object-inspect/commit/b614eaac901da0e5c69151f534671f990a94cace)
+- [Tests] fix coverage thresholds [`7b7b176`](https://github.com/inspect-js/object-inspect/commit/7b7b176e15f8bd6e8b2f261ff5a493c2fe78d9c2)
+- [Tests] bigint tests now can run on unflagged node [`063af31`](https://github.com/inspect-js/object-inspect/commit/063af31ce9cd13c202e3b67c07ba06dc9b7c0f81)
+- [Refactor] add early bailout to `isMap` and `isSet` checks [`fc51047`](https://github.com/inspect-js/object-inspect/commit/fc5104714a3671d37e225813db79470d6335683b)
+- [meta] add `funding` field [`7f9953a`](https://github.com/inspect-js/object-inspect/commit/7f9953a113eec7b064a6393cf9f90ba15f1d131b)
+- [Tests] Fix invalid strict-mode syntax with hexadecimal [`a8b5425`](https://github.com/inspect-js/object-inspect/commit/a8b542503b4af1599a275209a1a99f5fdedb1ead)
+- [Dev Deps] update `@ljharb/eslint-config` [`98df157`](https://github.com/inspect-js/object-inspect/commit/98df1577314d9188a3fc3f17fdcf2fba697ae1bd)
+- add copyright to LICENSE [`bb69fd0`](https://github.com/inspect-js/object-inspect/commit/bb69fd017a062d299e44da1f9b2c7dcd67f621e6)
+- [Tests] use `npx aud` in `posttest` [`4838353`](https://github.com/inspect-js/object-inspect/commit/4838353593974cf7f905b9ef04c03c094f0cdbe2)
+- [Tests] move `0.6` to allowed failures, because it won‘t build on travis [`1bff32a`](https://github.com/inspect-js/object-inspect/commit/1bff32aa52e8aea687f0856b28ba754b3e43ebf7)
+
+## [v1.6.0](https://github.com/inspect-js/object-inspect/compare/v1.5.0...v1.6.0) - 2018-05-02
+
+### Commits
+
+- [New] add support for boxed BigInt primitives [`356c66a`](https://github.com/inspect-js/object-inspect/commit/356c66a410e7aece7162c8319880a5ef647beaa9)
+- [Tests] up to `node` `v10.0`, `v9.11`, `v8.11`, `v6.14`, `v4.9` [`c77b65b`](https://github.com/inspect-js/object-inspect/commit/c77b65bba593811b906b9ec57561c5cba92e2db3)
+- [New] Add support for upcoming `BigInt` [`1ac548e`](https://github.com/inspect-js/object-inspect/commit/1ac548e4b27e26466c28c9a5e63e5d4e0591c31f)
+- [Tests] run bigint tests in CI with --harmony-bigint flag [`d31b738`](https://github.com/inspect-js/object-inspect/commit/d31b73831880254b5c6cf5691cda9a149fbc5f04)
+- [Dev Deps] update `core-js`, `tape` [`ff9eff6`](https://github.com/inspect-js/object-inspect/commit/ff9eff67113341ee1aaf80c1c22d683f43bfbccf)
+- [Docs] fix example to use `safer-buffer` [`48cae12`](https://github.com/inspect-js/object-inspect/commit/48cae12a73ec6cacc955175bc56bbe6aee6a211f)
+
+## [v1.5.0](https://github.com/inspect-js/object-inspect/compare/v1.4.1...v1.5.0) - 2017-12-25
+
+### Commits
+
+- [New] add `quoteStyle` option [`f5a72d2`](https://github.com/inspect-js/object-inspect/commit/f5a72d26edb3959b048f74c056ca7100a6b091e4)
+- [Tests] add more test coverage [`30ebe4e`](https://github.com/inspect-js/object-inspect/commit/30ebe4e1fa943b99ecbb85be7614256d536e2759)
+- [Tests] require 0.6 to pass [`99a008c`](https://github.com/inspect-js/object-inspect/commit/99a008ccace189a60fd7da18bf00e32c9572b980)
+
+## [v1.4.1](https://github.com/inspect-js/object-inspect/compare/v1.4.0...v1.4.1) - 2017-12-19
+
+### Commits
+
+- [Tests] up to `node` `v9.3`, `v8.9`, `v6.12` [`6674476`](https://github.com/inspect-js/object-inspect/commit/6674476cc56acaac1bde96c84fed5ef631911906)
+- [Fix] `inspect(Object(-0))` should be “Object(-0)”, not “Object(0)” [`d0a031f`](https://github.com/inspect-js/object-inspect/commit/d0a031f1cbb3024ee9982bfe364dd18a7e4d1bd3)
+
+## [v1.4.0](https://github.com/inspect-js/object-inspect/compare/v1.3.0...v1.4.0) - 2017-10-24
+
+### Commits
+
+- [Tests] add `npm run coverage` [`3b48fb2`](https://github.com/inspect-js/object-inspect/commit/3b48fb25db037235eeb808f0b2830aad7aa36f70)
+- [Tests] remove commented-out osx builds [`71e24db`](https://github.com/inspect-js/object-inspect/commit/71e24db8ad6ee3b9b381c5300b0475f2ba595a73)
+- [New] add support for `util.inspect.custom`, in node only. [`20cca77`](https://github.com/inspect-js/object-inspect/commit/20cca7762d7e17f15b21a90793dff84acce155df)
+- [Tests] up to `node` `v8.6`; use `nvm install-latest-npm` to ensure new npm doesn’t break old node [`252952d`](https://github.com/inspect-js/object-inspect/commit/252952d230d8065851dd3d4d5fe8398aae068529)
+- [Tests] up to `node` `v8.8` [`4aa868d`](https://github.com/inspect-js/object-inspect/commit/4aa868d3a62914091d489dd6ec6eed194ee67cd3)
+- [Dev Deps] update `core-js`, `tape` [`59483d1`](https://github.com/inspect-js/object-inspect/commit/59483d1df418f852f51fa0db7b24aa6b0209a27a)
+
+## [v1.3.0](https://github.com/inspect-js/object-inspect/compare/v1.2.2...v1.3.0) - 2017-07-31
+
+### Fixed
+
+- [Fix] Map/Set: work around core-js bug &lt; v2.5.0 [`#9`](https://github.com/inspect-js/object-inspect/issues/9)
+
+### Commits
+
+- [New] add support for arrays with additional object keys [`0d19937`](https://github.com/inspect-js/object-inspect/commit/0d199374ee37959e51539616666f420ccb29acb9)
+- [Tests] up to `node` `v8.2`, `v7.10`, `v6.11`; fix new npm breaking on older nodes [`e24784a`](https://github.com/inspect-js/object-inspect/commit/e24784a90c49117787157a12a63897c49cf89bbb)
+- Only apps should have lockfiles [`c6faebc`](https://github.com/inspect-js/object-inspect/commit/c6faebcb2ee486a889a4a1c4d78c0776c7576185)
+- [Dev Deps] update `tape` [`7345a0a`](https://github.com/inspect-js/object-inspect/commit/7345a0aeba7e91b888a079c10004d17696a7f586)
+
+## [v1.2.2](https://github.com/inspect-js/object-inspect/compare/v1.2.1...v1.2.2) - 2017-03-24
+
+### Commits
+
+- [Tests] up to `node` `v7.7`, `v6.10`, `v4.8`; improve test matrix [`a2ddc15`](https://github.com/inspect-js/object-inspect/commit/a2ddc15a1f2c65af18076eea1c0eb9cbceb478a0)
+- [Tests] up to `node` `v7.0`, `v6.9`, `v5.12`, `v4.6`, `io.js` `v3.3`; improve test matrix [`a48949f`](https://github.com/inspect-js/object-inspect/commit/a48949f6b574b2d4d2298109d8e8d0eb3e7a83e7)
+- [Performance] check for primitive types as early as possible. [`3b8092a`](https://github.com/inspect-js/object-inspect/commit/3b8092a2a4deffd0575f94334f00194e2d48dad3)
+- [Refactor] remove unneeded `else`s. [`7255034`](https://github.com/inspect-js/object-inspect/commit/725503402e08de4f96f6bf2d8edef44ac36f26b6)
+- [Refactor] avoid recreating `lowbyte` function every time. [`81edd34`](https://github.com/inspect-js/object-inspect/commit/81edd3475bd15bdd18e84de7472033dcf5004aaa)
+- [Fix] differentiate -0 from 0 [`521d345`](https://github.com/inspect-js/object-inspect/commit/521d3456b009da7bf1c5785c8a9df5a9f8718264)
+- [Refactor] move object key gathering into separate function [`aca6265`](https://github.com/inspect-js/object-inspect/commit/aca626536eaeef697196c6e9db3e90e7e0355b6a)
+- [Refactor] consolidate wrapping logic for boxed primitives into a function. [`4e440cd`](https://github.com/inspect-js/object-inspect/commit/4e440cd9065df04802a2a1dead03f48c353ca301)
+- [Robustness] use `typeof` instead of comparing to literal `undefined` [`5ca6f60`](https://github.com/inspect-js/object-inspect/commit/5ca6f601937506daff8ed2fcf686363b55807b69)
+- [Refactor] consolidate Map/Set notations. [`4e576e5`](https://github.com/inspect-js/object-inspect/commit/4e576e5d7ed2f9ec3fb7f37a0d16732eb10758a9)
+- [Tests] ensure that this function remains anonymous, despite ES6 name inference. [`7540ae5`](https://github.com/inspect-js/object-inspect/commit/7540ae591278756db614fa4def55ca413150e1a3)
+- [Refactor] explicitly coerce Error objects to strings. [`7f4ca84`](https://github.com/inspect-js/object-inspect/commit/7f4ca8424ee8dc2c0ca5a422d94f7fac40327261)
+- [Refactor] split up `var` declarations for debuggability [`6f2c11e`](https://github.com/inspect-js/object-inspect/commit/6f2c11e6a85418586a00292dcec5e97683f89bc3)
+- [Robustness] cache `Object.prototype.toString` [`df44a20`](https://github.com/inspect-js/object-inspect/commit/df44a20adfccf31529d60d1df2079bfc3c836e27)
+- [Dev Deps] update `tape` [`3ec714e`](https://github.com/inspect-js/object-inspect/commit/3ec714eba57bc3f58a6eb4fca1376f49e70d300a)
+- [Dev Deps] update `tape` [`beb72d9`](https://github.com/inspect-js/object-inspect/commit/beb72d969653747d7cde300393c28755375329b0)
+
+## [v1.2.1](https://github.com/inspect-js/object-inspect/compare/v1.2.0...v1.2.1) - 2016-04-09
+
+### Fixed
+
+- [Fix] fix Boolean `false` object inspection. [`#7`](https://github.com/substack/object-inspect/pull/7)
+
+## [v1.2.0](https://github.com/inspect-js/object-inspect/compare/v1.1.0...v1.2.0) - 2016-04-09
+
+### Fixed
+
+- [New] add support for inspecting String/Number/Boolean objects. [`#6`](https://github.com/inspect-js/object-inspect/issues/6)
+
+### Commits
+
+- [Dev Deps] update `tape` [`742caa2`](https://github.com/inspect-js/object-inspect/commit/742caa262cf7af4c815d4821c8bd0129c1446432)
+
+## [v1.1.0](https://github.com/inspect-js/object-inspect/compare/1.0.2...v1.1.0) - 2015-12-14
+
+### Merged
+
+- [New] add ES6 Map/Set support. [`#4`](https://github.com/inspect-js/object-inspect/pull/4)
+
+### Fixed
+
+- [New] add ES6 Map/Set support. [`#3`](https://github.com/inspect-js/object-inspect/issues/3)
+
+### Commits
+
+- Update `travis.yml` to test on bunches of `iojs` and `node` versions. [`4c1fd65`](https://github.com/inspect-js/object-inspect/commit/4c1fd65cc3bd95307e854d114b90478324287fd2)
+- [Dev Deps] update `tape` [`88a907e`](https://github.com/inspect-js/object-inspect/commit/88a907e33afbe408e4b5d6e4e42a33143f88848c)
+
+## [1.0.2](https://github.com/inspect-js/object-inspect/compare/1.0.1...1.0.2) - 2015-08-07
+
+### Commits
+
+- [Fix] Cache `Object.prototype.hasOwnProperty` in case it's deleted later. [`1d0075d`](https://github.com/inspect-js/object-inspect/commit/1d0075d3091dc82246feeb1f9871cb2b8ed227b3)
+- [Dev Deps] Update `tape` [`ca8d5d7`](https://github.com/inspect-js/object-inspect/commit/ca8d5d75635ddbf76f944e628267581e04958457)
+- gitignore node_modules since this is a reusable modules. [`ed41407`](https://github.com/inspect-js/object-inspect/commit/ed41407811743ca530cdeb28f982beb96026af82)
+
+## [1.0.1](https://github.com/inspect-js/object-inspect/compare/1.0.0...1.0.1) - 2015-07-19
+
+### Commits
+
+- Make `inspect` work with symbol primitives and objects, including in node 0.11 and 0.12. [`ddf1b94`](https://github.com/inspect-js/object-inspect/commit/ddf1b94475ab951f1e3bccdc0a48e9073cfbfef4)
+- bump tape [`103d674`](https://github.com/inspect-js/object-inspect/commit/103d67496b504bdcfdd765d303a773f87ec106e2)
+- use newer travis config [`d497276`](https://github.com/inspect-js/object-inspect/commit/d497276c1da14234bb5098a59cf20de75fbc316a)
+
+## [1.0.0](https://github.com/inspect-js/object-inspect/compare/0.4.0...1.0.0) - 2014-08-05
+
+### Commits
+
+- error inspect works properly [`260a22d`](https://github.com/inspect-js/object-inspect/commit/260a22d134d3a8a482c67d52091c6040c34f4299)
+- seen coverage [`57269e8`](https://github.com/inspect-js/object-inspect/commit/57269e8baa992a7439047f47325111fdcbcb8417)
+- htmlelement instance coverage [`397ffe1`](https://github.com/inspect-js/object-inspect/commit/397ffe10a1980350868043ef9de65686d438979f)
+- more element coverage [`6905cc2`](https://github.com/inspect-js/object-inspect/commit/6905cc2f7df35600177e613b0642b4df5efd3eca)
+- failing test for type errors [`385b615`](https://github.com/inspect-js/object-inspect/commit/385b6152e49b51b68449a662f410b084ed7c601a)
+- fn name coverage [`edc906d`](https://github.com/inspect-js/object-inspect/commit/edc906d40fca6b9194d304062c037ee8e398c4c2)
+- server-side element test [`362d1d3`](https://github.com/inspect-js/object-inspect/commit/362d1d3e86f187651c29feeb8478110afada385b)
+- custom inspect fn [`e89b0f6`](https://github.com/inspect-js/object-inspect/commit/e89b0f6fe6d5e03681282af83732a509160435a6)
+- fixed browser test [`b530882`](https://github.com/inspect-js/object-inspect/commit/b5308824a1c8471c5617e394766a03a6977102a9)
+- depth test, matches node [`1cfd9e0`](https://github.com/inspect-js/object-inspect/commit/1cfd9e0285a4ae1dff44101ad482915d9bf47e48)
+- exercise hasOwnProperty path [`8d753fb`](https://github.com/inspect-js/object-inspect/commit/8d753fb362a534fa1106e4d80f2ee9bea06a66d9)
+- more cases covered for errors [`c5c46a5`](https://github.com/inspect-js/object-inspect/commit/c5c46a569ec4606583497e8550f0d8c7ad39a4a4)
+- \W obj key test case [`b0eceee`](https://github.com/inspect-js/object-inspect/commit/b0eceeea6e0eb94d686c1046e99b9e25e5005f75)
+- coverage for explicit depth param [`e12b91c`](https://github.com/inspect-js/object-inspect/commit/e12b91cd59683362f3a0e80f46481a0211e26c15)
+
+## [0.4.0](https://github.com/inspect-js/object-inspect/compare/0.3.1...0.4.0) - 2014-03-21
+
+### Commits
+
+- passing lowbyte interpolation test [`b847511`](https://github.com/inspect-js/object-inspect/commit/b8475114f5def7e7961c5353d48d3d8d9a520985)
+- lowbyte test [`4a2b0e1`](https://github.com/inspect-js/object-inspect/commit/4a2b0e142667fc933f195472759385ac08f3946c)
+
+## [0.3.1](https://github.com/inspect-js/object-inspect/compare/0.3.0...0.3.1) - 2014-03-04
+
+### Commits
+
+- sort keys [`a07b19c`](https://github.com/inspect-js/object-inspect/commit/a07b19cc3b1521a82d4fafb6368b7a9775428a05)
+
+## [0.3.0](https://github.com/inspect-js/object-inspect/compare/0.2.0...0.3.0) - 2014-03-04
+
+### Commits
+
+- [] and {} instead of [ ] and { } [`654c44b`](https://github.com/inspect-js/object-inspect/commit/654c44b2865811f3519e57bb8526e0821caf5c6b)
+
+## [0.2.0](https://github.com/inspect-js/object-inspect/compare/0.1.3...0.2.0) - 2014-03-04
+
+### Commits
+
+- failing holes test [`99cdfad`](https://github.com/inspect-js/object-inspect/commit/99cdfad03c6474740275a75636fe6ca86c77737a)
+- regex already work [`e324033`](https://github.com/inspect-js/object-inspect/commit/e324033267025995ec97d32ed0a65737c99477a6)
+- failing undef/null test [`1f88a00`](https://github.com/inspect-js/object-inspect/commit/1f88a00265d3209719dda8117b7e6360b4c20943)
+- holes in the all example [`7d345f3`](https://github.com/inspect-js/object-inspect/commit/7d345f3676dcbe980cff89a4f6c243269ebbb709)
+- check for .inspect(), fixes Buffer use-case [`c3f7546`](https://github.com/inspect-js/object-inspect/commit/c3f75466dbca125347d49847c05262c292f12b79)
+- fixes for holes [`ce25f73`](https://github.com/inspect-js/object-inspect/commit/ce25f736683de4b92ff27dc5471218415e2d78d8)
+- weird null behavior [`405c1ea`](https://github.com/inspect-js/object-inspect/commit/405c1ea72cd5a8cf3b498c3eaa903d01b9fbcab5)
+- tape is actually a devDependency, upgrade [`703b0ce`](https://github.com/inspect-js/object-inspect/commit/703b0ce6c5817b4245a082564bccd877e0bb6990)
+- put date in the example [`a342219`](https://github.com/inspect-js/object-inspect/commit/a3422190eeaa013215f46df2d0d37b48595ac058)
+- passing the null test [`4ab737e`](https://github.com/inspect-js/object-inspect/commit/4ab737ebf862a75d247ebe51e79307a34d6380d4)
+
+## [0.1.3](https://github.com/inspect-js/object-inspect/compare/0.1.1...0.1.3) - 2013-07-26
+
+### Commits
+
+- special isElement() check [`882768a`](https://github.com/inspect-js/object-inspect/commit/882768a54035d30747be9de1baf14e5aa0daa128)
+- oh right old IEs don't have indexOf either [`36d1275`](https://github.com/inspect-js/object-inspect/commit/36d12756c38b08a74370b0bb696c809e529913a5)
+
+## [0.1.1](https://github.com/inspect-js/object-inspect/compare/0.1.0...0.1.1) - 2013-07-26
+
+### Commits
+
+- tests! [`4422fd9`](https://github.com/inspect-js/object-inspect/commit/4422fd95532c2745aa6c4f786f35f1090be29998)
+- fix for ie&lt;9, doesn't have hasOwnProperty [`6b7d611`](https://github.com/inspect-js/object-inspect/commit/6b7d61183050f6da801ea04473211da226482613)
+- fix for all IEs: no f.name [`4e0c2f6`](https://github.com/inspect-js/object-inspect/commit/4e0c2f6dfd01c306d067d7163319acc97c94ee50)
+- badges [`5ed0d88`](https://github.com/inspect-js/object-inspect/commit/5ed0d88e4e407f9cb327fa4a146c17921f9680f3)
+
+## [0.1.0](https://github.com/inspect-js/object-inspect/compare/0.0.0...0.1.0) - 2013-07-26
+
+### Commits
+
+- [Function] for functions [`ad5c485`](https://github.com/inspect-js/object-inspect/commit/ad5c485098fc83352cb540a60b2548ca56820e0b)
+
+## 0.0.0 - 2013-07-26
+
+### Commits
+
+- working browser example [`34be6b6`](https://github.com/inspect-js/object-inspect/commit/34be6b6548f9ce92bdc3c27572857ba0c4a1218d)
+- package.json etc [`cad51f2`](https://github.com/inspect-js/object-inspect/commit/cad51f23fc6bcf1a456ed6abe16088256c2f632f)
+- docs complete [`b80cce2`](https://github.com/inspect-js/object-inspect/commit/b80cce2490c4e7183a9ee11ea89071f0abec4446)
+- circular example [`4b4a7b9`](https://github.com/inspect-js/object-inspect/commit/4b4a7b92209e4e6b4630976cb6bcd17d14165a59)
+- string rep [`7afb479`](https://github.com/inspect-js/object-inspect/commit/7afb479baa798d27f09e0a178b72ea327f60f5c8)
diff --git a/backend/node_modules/object-inspect/LICENSE b/backend/node_modules/object-inspect/LICENSE
new file mode 100644
index 0000000..ca64cc1
--- /dev/null
+++ b/backend/node_modules/object-inspect/LICENSE
@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2013 James Halliday
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
diff --git a/backend/node_modules/object-inspect/example/all.js b/backend/node_modules/object-inspect/example/all.js
new file mode 100644
index 0000000..2f3355c
--- /dev/null
+++ b/backend/node_modules/object-inspect/example/all.js
@@ -0,0 +1,23 @@
+'use strict';
+
+var inspect = require('../');
+var Buffer = require('safer-buffer').Buffer;
+
+var holes = ['a', 'b'];
+holes[4] = 'e';
+holes[6] = 'g';
+
+var obj = {
+    a: 1,
+    b: [3, 4, undefined, null],
+    c: undefined,
+    d: null,
+    e: {
+        regex: /^x/i,
+        buf: Buffer.from('abc'),
+        holes: holes
+    },
+    now: new Date()
+};
+obj.self = obj;
+console.log(inspect(obj));
diff --git a/backend/node_modules/object-inspect/example/circular.js b/backend/node_modules/object-inspect/example/circular.js
new file mode 100644
index 0000000..487a7c1
--- /dev/null
+++ b/backend/node_modules/object-inspect/example/circular.js
@@ -0,0 +1,6 @@
+'use strict';
+
+var inspect = require('../');
+var obj = { a: 1, b: [3, 4] };
+obj.c = obj;
+console.log(inspect(obj));
diff --git a/backend/node_modules/object-inspect/example/fn.js b/backend/node_modules/object-inspect/example/fn.js
new file mode 100644
index 0000000..9b5db8d
--- /dev/null
+++ b/backend/node_modules/object-inspect/example/fn.js
@@ -0,0 +1,5 @@
+'use strict';
+
+var inspect = require('../');
+var obj = [1, 2, function f(n) { return n + 5; }, 4];
+console.log(inspect(obj));
diff --git a/backend/node_modules/object-inspect/example/inspect.js b/backend/node_modules/object-inspect/example/inspect.js
new file mode 100644
index 0000000..e2df7c9
--- /dev/null
+++ b/backend/node_modules/object-inspect/example/inspect.js
@@ -0,0 +1,10 @@
+'use strict';
+
+/* eslint-env browser */
+var inspect = require('../');
+
+var d = document.createElement('div');
+d.setAttribute('id', 'beep');
+d.innerHTML = '<b>wooo</b><i>iiiii</i>';
+
+console.log(inspect([d, { a: 3, b: 4, c: [5, 6, [7, [8, [9]]]] }]));
diff --git a/backend/node_modules/object-inspect/index.js b/backend/node_modules/object-inspect/index.js
new file mode 100644
index 0000000..a4b2d4c
--- /dev/null
+++ b/backend/node_modules/object-inspect/index.js
@@ -0,0 +1,544 @@
+var hasMap = typeof Map === 'function' && Map.prototype;
+var mapSizeDescriptor = Object.getOwnPropertyDescriptor && hasMap ? Object.getOwnPropertyDescriptor(Map.prototype, 'size') : null;
+var mapSize = hasMap && mapSizeDescriptor && typeof mapSizeDescriptor.get === 'function' ? mapSizeDescriptor.get : null;
+var mapForEach = hasMap && Map.prototype.forEach;
+var hasSet = typeof Set === 'function' && Set.prototype;
+var setSizeDescriptor = Object.getOwnPropertyDescriptor && hasSet ? Object.getOwnPropertyDescriptor(Set.prototype, 'size') : null;
+var setSize = hasSet && setSizeDescriptor && typeof setSizeDescriptor.get === 'function' ? setSizeDescriptor.get : null;
+var setForEach = hasSet && Set.prototype.forEach;
+var hasWeakMap = typeof WeakMap === 'function' && WeakMap.prototype;
+var weakMapHas = hasWeakMap ? WeakMap.prototype.has : null;
+var hasWeakSet = typeof WeakSet === 'function' && WeakSet.prototype;
+var weakSetHas = hasWeakSet ? WeakSet.prototype.has : null;
+var hasWeakRef = typeof WeakRef === 'function' && WeakRef.prototype;
+var weakRefDeref = hasWeakRef ? WeakRef.prototype.deref : null;
+var booleanValueOf = Boolean.prototype.valueOf;
+var objectToString = Object.prototype.toString;
+var functionToString = Function.prototype.toString;
+var $match = String.prototype.match;
+var $slice = String.prototype.slice;
+var $replace = String.prototype.replace;
+var $toUpperCase = String.prototype.toUpperCase;
+var $toLowerCase = String.prototype.toLowerCase;
+var $test = RegExp.prototype.test;
+var $concat = Array.prototype.concat;
+var $join = Array.prototype.join;
+var $arrSlice = Array.prototype.slice;
+var $floor = Math.floor;
+var bigIntValueOf = typeof BigInt === 'function' ? BigInt.prototype.valueOf : null;
+var gOPS = Object.getOwnPropertySymbols;
+var symToString = typeof Symbol === 'function' && typeof Symbol.iterator === 'symbol' ? Symbol.prototype.toString : null;
+var hasShammedSymbols = typeof Symbol === 'function' && typeof Symbol.iterator === 'object';
+// ie, `has-tostringtag/shams
+var toStringTag = typeof Symbol === 'function' && Symbol.toStringTag && (typeof Symbol.toStringTag === hasShammedSymbols ? 'object' : 'symbol')
+    ? Symbol.toStringTag
+    : null;
+var isEnumerable = Object.prototype.propertyIsEnumerable;
+
+var gPO = (typeof Reflect === 'function' ? Reflect.getPrototypeOf : Object.getPrototypeOf) || (
+    [].__proto__ === Array.prototype // eslint-disable-line no-proto
+        ? function (O) {
+            return O.__proto__; // eslint-disable-line no-proto
+        }
+        : null
+);
+
+function addNumericSeparator(num, str) {
+    if (
+        num === Infinity
+        || num === -Infinity
+        || num !== num
+        || (num && num > -1000 && num < 1000)
+        || $test.call(/e/, str)
+    ) {
+        return str;
+    }
+    var sepRegex = /[0-9](?=(?:[0-9]{3})+(?![0-9]))/g;
+    if (typeof num === 'number') {
+        var int = num < 0 ? -$floor(-num) : $floor(num); // trunc(num)
+        if (int !== num) {
+            var intStr = String(int);
+            var dec = $slice.call(str, intStr.length + 1);
+            return $replace.call(intStr, sepRegex, '$&_') + '.' + $replace.call($replace.call(dec, /([0-9]{3})/g, '$&_'), /_$/, '');
+        }
+    }
+    return $replace.call(str, sepRegex, '$&_');
+}
+
+var utilInspect = require('./util.inspect');
+var inspectCustom = utilInspect.custom;
+var inspectSymbol = isSymbol(inspectCustom) ? inspectCustom : null;
+
+var quotes = {
+    __proto__: null,
+    'double': '"',
+    single: "'"
+};
+var quoteREs = {
+    __proto__: null,
+    'double': /(["\\])/g,
+    single: /(['\\])/g
+};
+
+module.exports = function inspect_(obj, options, depth, seen) {
+    var opts = options || {};
+
+    if (has(opts, 'quoteStyle') && !has(quotes, opts.quoteStyle)) {
+        throw new TypeError('option "quoteStyle" must be "single" or "double"');
+    }
+    if (
+        has(opts, 'maxStringLength') && (typeof opts.maxStringLength === 'number'
+            ? opts.maxStringLength < 0 && opts.maxStringLength !== Infinity
+            : opts.maxStringLength !== null
+        )
+    ) {
+        throw new TypeError('option "maxStringLength", if provided, must be a positive integer, Infinity, or `null`');
+    }
+    var customInspect = has(opts, 'customInspect') ? opts.customInspect : true;
+    if (typeof customInspect !== 'boolean' && customInspect !== 'symbol') {
+        throw new TypeError('option "customInspect", if provided, must be `true`, `false`, or `\'symbol\'`');
+    }
+
+    if (
+        has(opts, 'indent')
+        && opts.indent !== null
+        && opts.indent !== '\t'
+        && !(parseInt(opts.indent, 10) === opts.indent && opts.indent > 0)
+    ) {
+        throw new TypeError('option "indent" must be "\\t", an integer > 0, or `null`');
+    }
+    if (has(opts, 'numericSeparator') && typeof opts.numericSeparator !== 'boolean') {
+        throw new TypeError('option "numericSeparator", if provided, must be `true` or `false`');
+    }
+    var numericSeparator = opts.numericSeparator;
+
+    if (typeof obj === 'undefined') {
+        return 'undefined';
+    }
+    if (obj === null) {
+        return 'null';
+    }
+    if (typeof obj === 'boolean') {
+        return obj ? 'true' : 'false';
+    }
+
+    if (typeof obj === 'string') {
+        return inspectString(obj, opts);
+    }
+    if (typeof obj === 'number') {
+        if (obj === 0) {
+            return Infinity / obj > 0 ? '0' : '-0';
+        }
+        var str = String(obj);
+        return numericSeparator ? addNumericSeparator(obj, str) : str;
+    }
+    if (typeof obj === 'bigint') {
+        var bigIntStr = String(obj) + 'n';
+        return numericSeparator ? addNumericSeparator(obj, bigIntStr) : bigIntStr;
+    }
+
+    var maxDepth = typeof opts.depth === 'undefined' ? 5 : opts.depth;
+    if (typeof depth === 'undefined') { depth = 0; }
+    if (depth >= maxDepth && maxDepth > 0 && typeof obj === 'object') {
+        return isArray(obj) ? '[Array]' : '[Object]';
+    }
+
+    var indent = getIndent(opts, depth);
+
+    if (typeof seen === 'undefined') {
+        seen = [];
+    } else if (indexOf(seen, obj) >= 0) {
+        return '[Circular]';
+    }
+
+    function inspect(value, from, noIndent) {
+        if (from) {
+            seen = $arrSlice.call(seen);
+            seen.push(from);
+        }
+        if (noIndent) {
+            var newOpts = {
+                depth: opts.depth
+            };
+            if (has(opts, 'quoteStyle')) {
+                newOpts.quoteStyle = opts.quoteStyle;
+            }
+            return inspect_(value, newOpts, depth + 1, seen);
+        }
+        return inspect_(value, opts, depth + 1, seen);
+    }
+
+    if (typeof obj === 'function' && !isRegExp(obj)) { // in older engines, regexes are callable
+        var name = nameOf(obj);
+        var keys = arrObjKeys(obj, inspect);
+        return '[Function' + (name ? ': ' + name : ' (anonymous)') + ']' + (keys.length > 0 ? ' { ' + $join.call(keys, ', ') + ' }' : '');
+    }
+    if (isSymbol(obj)) {
+        var symString = hasShammedSymbols ? $replace.call(String(obj), /^(Symbol\(.*\))_[^)]*$/, '$1') : symToString.call(obj);
+        return typeof obj === 'object' && !hasShammedSymbols ? markBoxed(symString) : symString;
+    }
+    if (isElement(obj)) {
+        var s = '<' + $toLowerCase.call(String(obj.nodeName));
+        var attrs = obj.attributes || [];
+        for (var i = 0; i < attrs.length; i++) {
+            s += ' ' + attrs[i].name + '=' + wrapQuotes(quote(attrs[i].value), 'double', opts);
+        }
+        s += '>';
+        if (obj.childNodes && obj.childNodes.length) { s += '...'; }
+        s += '</' + $toLowerCase.call(String(obj.nodeName)) + '>';
+        return s;
+    }
+    if (isArray(obj)) {
+        if (obj.length === 0) { return '[]'; }
+        var xs = arrObjKeys(obj, inspect);
+        if (indent && !singleLineValues(xs)) {
+            return '[' + indentedJoin(xs, indent) + ']';
+        }
+        return '[ ' + $join.call(xs, ', ') + ' ]';
+    }
+    if (isError(obj)) {
+        var parts = arrObjKeys(obj, inspect);
+        if (!('cause' in Error.prototype) && 'cause' in obj && !isEnumerable.call(obj, 'cause')) {
+            return '{ [' + String(obj) + '] ' + $join.call($concat.call('[cause]: ' + inspect(obj.cause), parts), ', ') + ' }';
+        }
+        if (parts.length === 0) { return '[' + String(obj) + ']'; }
+        return '{ [' + String(obj) + '] ' + $join.call(parts, ', ') + ' }';
+    }
+    if (typeof obj === 'object' && customInspect) {
+        if (inspectSymbol && typeof obj[inspectSymbol] === 'function' && utilInspect) {
+            return utilInspect(obj, { depth: maxDepth - depth });
+        } else if (customInspect !== 'symbol' && typeof obj.inspect === 'function') {
+            return obj.inspect();
+        }
+    }
+    if (isMap(obj)) {
+        var mapParts = [];
+        if (mapForEach) {
+            mapForEach.call(obj, function (value, key) {
+                mapParts.push(inspect(key, obj, true) + ' => ' + inspect(value, obj));
+            });
+        }
+        return collectionOf('Map', mapSize.call(obj), mapParts, indent);
+    }
+    if (isSet(obj)) {
+        var setParts = [];
+        if (setForEach) {
+            setForEach.call(obj, function (value) {
+                setParts.push(inspect(value, obj));
+            });
+        }
+        return collectionOf('Set', setSize.call(obj), setParts, indent);
+    }
+    if (isWeakMap(obj)) {
+        return weakCollectionOf('WeakMap');
+    }
+    if (isWeakSet(obj)) {
+        return weakCollectionOf('WeakSet');
+    }
+    if (isWeakRef(obj)) {
+        return weakCollectionOf('WeakRef');
+    }
+    if (isNumber(obj)) {
+        return markBoxed(inspect(Number(obj)));
+    }
+    if (isBigInt(obj)) {
+        return markBoxed(inspect(bigIntValueOf.call(obj)));
+    }
+    if (isBoolean(obj)) {
+        return markBoxed(booleanValueOf.call(obj));
+    }
+    if (isString(obj)) {
+        return markBoxed(inspect(String(obj)));
+    }
+    // note: in IE 8, sometimes `global !== window` but both are the prototypes of each other
+    /* eslint-env browser */
+    if (typeof window !== 'undefined' && obj === window) {
+        return '{ [object Window] }';
+    }
+    if (
+        (typeof globalThis !== 'undefined' && obj === globalThis)
+        || (typeof global !== 'undefined' && obj === global)
+    ) {
+        return '{ [object globalThis] }';
+    }
+    if (!isDate(obj) && !isRegExp(obj)) {
+        var ys = arrObjKeys(obj, inspect);
+        var isPlainObject = gPO ? gPO(obj) === Object.prototype : obj instanceof Object || obj.constructor === Object;
+        var protoTag = obj instanceof Object ? '' : 'null prototype';
+        var stringTag = !isPlainObject && toStringTag && Object(obj) === obj && toStringTag in obj ? $slice.call(toStr(obj), 8, -1) : protoTag ? 'Object' : '';
+        var constructorTag = isPlainObject || typeof obj.constructor !== 'function' ? '' : obj.constructor.name ? obj.constructor.name + ' ' : '';
+        var tag = constructorTag + (stringTag || protoTag ? '[' + $join.call($concat.call([], stringTag || [], protoTag || []), ': ') + '] ' : '');
+        if (ys.length === 0) { return tag + '{}'; }
+        if (indent) {
+            return tag + '{' + indentedJoin(ys, indent) + '}';
+        }
+        return tag + '{ ' + $join.call(ys, ', ') + ' }';
+    }
+    return String(obj);
+};
+
+function wrapQuotes(s, defaultStyle, opts) {
+    var style = opts.quoteStyle || defaultStyle;
+    var quoteChar = quotes[style];
+    return quoteChar + s + quoteChar;
+}
+
+function quote(s) {
+    return $replace.call(String(s), /"/g, '&quot;');
+}
+
+function canTrustToString(obj) {
+    return !toStringTag || !(typeof obj === 'object' && (toStringTag in obj || typeof obj[toStringTag] !== 'undefined'));
+}
+function isArray(obj) { return toStr(obj) === '[object Array]' && canTrustToString(obj); }
+function isDate(obj) { return toStr(obj) === '[object Date]' && canTrustToString(obj); }
+function isRegExp(obj) { return toStr(obj) === '[object RegExp]' && canTrustToString(obj); }
+function isError(obj) { return toStr(obj) === '[object Error]' && canTrustToString(obj); }
+function isString(obj) { return toStr(obj) === '[object String]' && canTrustToString(obj); }
+function isNumber(obj) { return toStr(obj) === '[object Number]' && canTrustToString(obj); }
+function isBoolean(obj) { return toStr(obj) === '[object Boolean]' && canTrustToString(obj); }
+
+// Symbol and BigInt do have Symbol.toStringTag by spec, so that can't be used to eliminate false positives
+function isSymbol(obj) {
+    if (hasShammedSymbols) {
+        return obj && typeof obj === 'object' && obj instanceof Symbol;
+    }
+    if (typeof obj === 'symbol') {
+        return true;
+    }
+    if (!obj || typeof obj !== 'object' || !symToString) {
+        return false;
+    }
+    try {
+        symToString.call(obj);
+        return true;
+    } catch (e) {}
+    return false;
+}
+
+function isBigInt(obj) {
+    if (!obj || typeof obj !== 'object' || !bigIntValueOf) {
+        return false;
+    }
+    try {
+        bigIntValueOf.call(obj);
+        return true;
+    } catch (e) {}
+    return false;
+}
+
+var hasOwn = Object.prototype.hasOwnProperty || function (key) { return key in this; };
+function has(obj, key) {
+    return hasOwn.call(obj, key);
+}
+
+function toStr(obj) {
+    return objectToString.call(obj);
+}
+
+function nameOf(f) {
+    if (f.name) { return f.name; }
+    var m = $match.call(functionToString.call(f), /^function\s*([\w$]+)/);
+    if (m) { return m[1]; }
+    return null;
+}
+
+function indexOf(xs, x) {
+    if (xs.indexOf) { return xs.indexOf(x); }
+    for (var i = 0, l = xs.length; i < l; i++) {
+        if (xs[i] === x) { return i; }
+    }
+    return -1;
+}
+
+function isMap(x) {
+    if (!mapSize || !x || typeof x !== 'object') {
+        return false;
+    }
+    try {
+        mapSize.call(x);
+        try {
+            setSize.call(x);
+        } catch (s) {
+            return true;
+        }
+        return x instanceof Map; // core-js workaround, pre-v2.5.0
+    } catch (e) {}
+    return false;
+}
+
+function isWeakMap(x) {
+    if (!weakMapHas || !x || typeof x !== 'object') {
+        return false;
+    }
+    try {
+        weakMapHas.call(x, weakMapHas);
+        try {
+            weakSetHas.call(x, weakSetHas);
+        } catch (s) {
+            return true;
+        }
+        return x instanceof WeakMap; // core-js workaround, pre-v2.5.0
+    } catch (e) {}
+    return false;
+}
+
+function isWeakRef(x) {
+    if (!weakRefDeref || !x || typeof x !== 'object') {
+        return false;
+    }
+    try {
+        weakRefDeref.call(x);
+        return true;
+    } catch (e) {}
+    return false;
+}
+
+function isSet(x) {
+    if (!setSize || !x || typeof x !== 'object') {
+        return false;
+    }
+    try {
+        setSize.call(x);
+        try {
+            mapSize.call(x);
+        } catch (m) {
+            return true;
+        }
+        return x instanceof Set; // core-js workaround, pre-v2.5.0
+    } catch (e) {}
+    return false;
+}
+
+function isWeakSet(x) {
+    if (!weakSetHas || !x || typeof x !== 'object') {
+        return false;
+    }
+    try {
+        weakSetHas.call(x, weakSetHas);
+        try {
+            weakMapHas.call(x, weakMapHas);
+        } catch (s) {
+            return true;
+        }
+        return x instanceof WeakSet; // core-js workaround, pre-v2.5.0
+    } catch (e) {}
+    return false;
+}
+
+function isElement(x) {
+    if (!x || typeof x !== 'object') { return false; }
+    if (typeof HTMLElement !== 'undefined' && x instanceof HTMLElement) {
+        return true;
+    }
+    return typeof x.nodeName === 'string' && typeof x.getAttribute === 'function';
+}
+
+function inspectString(str, opts) {
+    if (str.length > opts.maxStringLength) {
+        var remaining = str.length - opts.maxStringLength;
+        var trailer = '... ' + remaining + ' more character' + (remaining > 1 ? 's' : '');
+        return inspectString($slice.call(str, 0, opts.maxStringLength), opts) + trailer;
+    }
+    var quoteRE = quoteREs[opts.quoteStyle || 'single'];
+    quoteRE.lastIndex = 0;
+    // eslint-disable-next-line no-control-regex
+    var s = $replace.call($replace.call(str, quoteRE, '\\$1'), /[\x00-\x1f]/g, lowbyte);
+    return wrapQuotes(s, 'single', opts);
+}
+
+function lowbyte(c) {
+    var n = c.charCodeAt(0);
+    var x = {
+        8: 'b',
+        9: 't',
+        10: 'n',
+        12: 'f',
+        13: 'r'
+    }[n];
+    if (x) { return '\\' + x; }
+    return '\\x' + (n < 0x10 ? '0' : '') + $toUpperCase.call(n.toString(16));
+}
+
+function markBoxed(str) {
+    return 'Object(' + str + ')';
+}
+
+function weakCollectionOf(type) {
+    return type + ' { ? }';
+}
+
+function collectionOf(type, size, entries, indent) {
+    var joinedEntries = indent ? indentedJoin(entries, indent) : $join.call(entries, ', ');
+    return type + ' (' + size + ') {' + joinedEntries + '}';
+}
+
+function singleLineValues(xs) {
+    for (var i = 0; i < xs.length; i++) {
+        if (indexOf(xs[i], '\n') >= 0) {
+            return false;
+        }
+    }
+    return true;
+}
+
+function getIndent(opts, depth) {
+    var baseIndent;
+    if (opts.indent === '\t') {
+        baseIndent = '\t';
+    } else if (typeof opts.indent === 'number' && opts.indent > 0) {
+        baseIndent = $join.call(Array(opts.indent + 1), ' ');
+    } else {
+        return null;
+    }
+    return {
+        base: baseIndent,
+        prev: $join.call(Array(depth + 1), baseIndent)
+    };
+}
+
+function indentedJoin(xs, indent) {
+    if (xs.length === 0) { return ''; }
+    var lineJoiner = '\n' + indent.prev + indent.base;
+    return lineJoiner + $join.call(xs, ',' + lineJoiner) + '\n' + indent.prev;
+}
+
+function arrObjKeys(obj, inspect) {
+    var isArr = isArray(obj);
+    var xs = [];
+    if (isArr) {
+        xs.length = obj.length;
+        for (var i = 0; i < obj.length; i++) {
+            xs[i] = has(obj, i) ? inspect(obj[i], obj) : '';
+        }
+    }
+    var syms = typeof gOPS === 'function' ? gOPS(obj) : [];
+    var symMap;
+    if (hasShammedSymbols) {
+        symMap = {};
+        for (var k = 0; k < syms.length; k++) {
+            symMap['$' + syms[k]] = syms[k];
+        }
+    }
+
+    for (var key in obj) { // eslint-disable-line no-restricted-syntax
+        if (!has(obj, key)) { continue; } // eslint-disable-line no-restricted-syntax, no-continue
+        if (isArr && String(Number(key)) === key && key < obj.length) { continue; } // eslint-disable-line no-restricted-syntax, no-continue
+        if (hasShammedSymbols && symMap['$' + key] instanceof Symbol) {
+            // this is to prevent shammed Symbols, which are stored as strings, from being included in the string key section
+            continue; // eslint-disable-line no-restricted-syntax, no-continue
+        } else if ($test.call(/[^\w$]/, key)) {
+            xs.push(inspect(key, obj) + ': ' + inspect(obj[key], obj));
+        } else {
+            xs.push(key + ': ' + inspect(obj[key], obj));
+        }
+    }
+    if (typeof gOPS === 'function') {
+        for (var j = 0; j < syms.length; j++) {
+            if (isEnumerable.call(obj, syms[j])) {
+                xs.push('[' + inspect(syms[j]) + ']: ' + inspect(obj[syms[j]], obj));
+            }
+        }
+    }
+    return xs;
+}
diff --git a/backend/node_modules/object-inspect/package-support.json b/backend/node_modules/object-inspect/package-support.json
new file mode 100644
index 0000000..5cc12d0
--- /dev/null
+++ b/backend/node_modules/object-inspect/package-support.json
@@ -0,0 +1,20 @@
+{
+  "versions": [
+    {
+      "version": "*",
+      "target": {
+        "node": "all"
+      },
+      "response": {
+        "type": "time-permitting"
+      },
+      "backing": {
+        "npm-funding": true,
+        "donations": [
+          "https://github.com/ljharb",
+          "https://tidelift.com/funding/github/npm/object-inspect"
+        ]
+      }
+    }
+  ]
+}
diff --git a/backend/node_modules/object-inspect/package.json b/backend/node_modules/object-inspect/package.json
new file mode 100644
index 0000000..9fd97ff
--- /dev/null
+++ b/backend/node_modules/object-inspect/package.json
@@ -0,0 +1,105 @@
+{
+  "name": "object-inspect",
+  "version": "1.13.4",
+  "description": "string representations of objects in node and the browser",
+  "main": "index.js",
+  "sideEffects": false,
+  "devDependencies": {
+    "@ljharb/eslint-config": "^21.1.1",
+    "@pkgjs/support": "^0.0.6",
+    "auto-changelog": "^2.5.0",
+    "core-js": "^2.6.12",
+    "error-cause": "^1.0.8",
+    "es-value-fixtures": "^1.7.1",
+    "eslint": "=8.8.0",
+    "for-each": "^0.3.4",
+    "functions-have-names": "^1.2.3",
+    "glob": "=10.3.7",
+    "globalthis": "^1.0.4",
+    "has-symbols": "^1.1.0",
+    "has-tostringtag": "^1.0.2",
+    "in-publish": "^2.0.1",
+    "jackspeak": "=2.1.1",
+    "make-arrow-function": "^1.2.0",
+    "mock-property": "^1.1.0",
+    "npmignore": "^0.3.1",
+    "nyc": "^10.3.2",
+    "safe-publish-latest": "^2.0.0",
+    "safer-buffer": "^2.1.2",
+    "semver": "^6.3.1",
+    "string.prototype.repeat": "^1.0.0",
+    "tape": "^5.9.0"
+  },
+  "scripts": {
+    "prepack": "npmignore --auto --commentLines=autogenerated",
+    "prepublish": "not-in-publish || npm run prepublishOnly",
+    "prepublishOnly": "safe-publish-latest",
+    "pretest": "npm run lint",
+    "lint": "eslint --ext=js,mjs .",
+    "postlint": "npx @pkgjs/support validate",
+    "test": "npm run tests-only && npm run test:corejs",
+    "tests-only": "nyc tape 'test/*.js'",
+    "test:corejs": "nyc tape test-core-js.js 'test/*.js'",
+    "posttest": "npx npm@'>=10.2' audit --production",
+    "version": "auto-changelog && git add CHANGELOG.md",
+    "postversion": "auto-changelog && git add CHANGELOG.md && git commit --no-edit --amend && git tag -f \"v$(node -e \"console.log(require('./package.json').version)\")\""
+  },
+  "testling": {
+    "files": [
+      "test/*.js",
+      "test/browser/*.js"
+    ],
+    "browsers": [
+      "ie/6..latest",
+      "chrome/latest",
+      "firefox/latest",
+      "safari/latest",
+      "opera/latest",
+      "iphone/latest",
+      "ipad/latest",
+      "android/latest"
+    ]
+  },
+  "repository": {
+    "type": "git",
+    "url": "git://github.com/inspect-js/object-inspect.git"
+  },
+  "homepage": "https://github.com/inspect-js/object-inspect",
+  "keywords": [
+    "inspect",
+    "util.inspect",
+    "object",
+    "stringify",
+    "pretty"
+  ],
+  "author": {
+    "name": "James Halliday",
+    "email": "mail@substack.net",
+    "url": "http://substack.net"
+  },
+  "funding": {
+    "url": "https://github.com/sponsors/ljharb"
+  },
+  "license": "MIT",
+  "browser": {
+    "./util.inspect.js": false
+  },
+  "auto-changelog": {
+    "output": "CHANGELOG.md",
+    "template": "keepachangelog",
+    "unreleased": false,
+    "commitLimit": false,
+    "backfillLimit": false,
+    "hideCredit": true
+  },
+  "publishConfig": {
+    "ignore": [
+      ".github/workflows",
+      "./test-core-js.js"
+    ]
+  },
+  "support": true,
+  "engines": {
+    "node": ">= 0.4"
+  }
+}
diff --git a/backend/node_modules/object-inspect/readme.markdown b/backend/node_modules/object-inspect/readme.markdown
new file mode 100644
index 0000000..f91617d
--- /dev/null
+++ b/backend/node_modules/object-inspect/readme.markdown
@@ -0,0 +1,84 @@
+# object-inspect <sup>[![Version Badge][npm-version-svg]][package-url]</sup>
+
+string representations of objects in node and the browser
+
+[![github actions][actions-image]][actions-url]
+[![coverage][codecov-image]][codecov-url]
+[![License][license-image]][license-url]
+[![Downloads][downloads-image]][downloads-url]
+
+[![npm badge][npm-badge-png]][package-url]
+
+# example
+
+## circular
+
+``` js
+var inspect = require('object-inspect');
+var obj = { a: 1, b: [3,4] };
+obj.c = obj;
+console.log(inspect(obj));
+```
+
+## dom element
+
+``` js
+var inspect = require('object-inspect');
+
+var d = document.createElement('div');
+d.setAttribute('id', 'beep');
+d.innerHTML = '<b>wooo</b><i>iiiii</i>';
+
+console.log(inspect([ d, { a: 3, b : 4, c: [5,6,[7,[8,[9]]]] } ]));
+```
+
+output:
+
+```
+[ <div id="beep">...</div>, { a: 3, b: 4, c: [ 5, 6, [ 7, [ 8, [ ... ] ] ] ] } ]
+```
+
+# methods
+
+``` js
+var inspect = require('object-inspect')
+```
+
+## var s = inspect(obj, opts={})
+
+Return a string `s` with the string representation of `obj` up to a depth of `opts.depth`.
+
+Additional options:
+  - `quoteStyle`: must be "single" or "double", if present. Default `'single'` for strings, `'double'` for HTML elements.
+  - `maxStringLength`: must be `0`, a positive integer, `Infinity`, or `null`, if present. Default `Infinity`.
+  - `customInspect`: When `true`, a custom inspect method function will be invoked (either undere the `util.inspect.custom` symbol, or the `inspect` property). When the string `'symbol'`, only the symbol method will be invoked. Default `true`.
+  - `indent`: must be "\t", `null`, or a positive integer. Default `null`.
+  - `numericSeparator`: must be a boolean, if present. Default `false`. If `true`, all numbers will be printed with numeric separators (eg, `1234.5678` will be printed as `'1_234.567_8'`)
+
+# install
+
+With [npm](https://npmjs.org) do:
+
+```
+npm install object-inspect
+```
+
+# license
+
+MIT
+
+[package-url]: https://npmjs.org/package/object-inspect
+[npm-version-svg]: https://versionbadg.es/inspect-js/object-inspect.svg
+[deps-svg]: https://david-dm.org/inspect-js/object-inspect.svg
+[deps-url]: https://david-dm.org/inspect-js/object-inspect
+[dev-deps-svg]: https://david-dm.org/inspect-js/object-inspect/dev-status.svg
+[dev-deps-url]: https://david-dm.org/inspect-js/object-inspect#info=devDependencies
+[npm-badge-png]: https://nodei.co/npm/object-inspect.png?downloads=true&stars=true
+[license-image]: https://img.shields.io/npm/l/object-inspect.svg
+[license-url]: LICENSE
+[downloads-image]: https://img.shields.io/npm/dm/object-inspect.svg
+[downloads-url]: https://npm-stat.com/charts.html?package=object-inspect
+[codecov-image]: https://codecov.io/gh/inspect-js/object-inspect/branch/main/graphs/badge.svg
+[codecov-url]: https://app.codecov.io/gh/inspect-js/object-inspect/
+[actions-image]: https://img.shields.io/endpoint?url=https://github-actions-badge-u3jn4tfpocch.runkit.sh/inspect-js/object-inspect
+[actions-url]: https://github.com/inspect-js/object-inspect/actions
diff --git a/backend/node_modules/object-inspect/test-core-js.js b/backend/node_modules/object-inspect/test-core-js.js
new file mode 100644
index 0000000..e53c400
--- /dev/null
+++ b/backend/node_modules/object-inspect/test-core-js.js
@@ -0,0 +1,26 @@
+'use strict';
+
+require('core-js');
+
+var inspect = require('./');
+var test = require('tape');
+
+test('Maps', function (t) {
+    t.equal(inspect(new Map([[1, 2]])), 'Map (1) {1 => 2}');
+    t.end();
+});
+
+test('WeakMaps', function (t) {
+    t.equal(inspect(new WeakMap([[{}, 2]])), 'WeakMap { ? }');
+    t.end();
+});
+
+test('Sets', function (t) {
+    t.equal(inspect(new Set([[1, 2]])), 'Set (1) {[ 1, 2 ]}');
+    t.end();
+});
+
+test('WeakSets', function (t) {
+    t.equal(inspect(new WeakSet([[1, 2]])), 'WeakSet { ? }');
+    t.end();
+});
diff --git a/backend/node_modules/object-inspect/test/bigint.js b/backend/node_modules/object-inspect/test/bigint.js
new file mode 100644
index 0000000..4ecc31d
--- /dev/null
+++ b/backend/node_modules/object-inspect/test/bigint.js
@@ -0,0 +1,58 @@
+'use strict';
+
+var inspect = require('../');
+var test = require('tape');
+var hasToStringTag = require('has-tostringtag/shams')();
+
+test('bigint', { skip: typeof BigInt === 'undefined' }, function (t) {
+    t.test('primitives', function (st) {
+        st.plan(3);
+
+        st.equal(inspect(BigInt(-256)), '-256n');
+        st.equal(inspect(BigInt(0)), '0n');
+        st.equal(inspect(BigInt(256)), '256n');
+    });
+
+    t.test('objects', function (st) {
+        st.plan(3);
+
+        st.equal(inspect(Object(BigInt(-256))), 'Object(-256n)');
+        st.equal(inspect(Object(BigInt(0))), 'Object(0n)');
+        st.equal(inspect(Object(BigInt(256))), 'Object(256n)');
+    });
+
+    t.test('syntactic primitives', function (st) {
+        st.plan(3);
+
+        /* eslint-disable no-new-func */
+        st.equal(inspect(Function('return -256n')()), '-256n');
+        st.equal(inspect(Function('return 0n')()), '0n');
+        st.equal(inspect(Function('return 256n')()), '256n');
+    });
+
+    t.test('toStringTag', { skip: !hasToStringTag }, function (st) {
+        st.plan(1);
+
+        var faker = {};
+        faker[Symbol.toStringTag] = 'BigInt';
+        st.equal(
+            inspect(faker),
+            '{ [Symbol(Symbol.toStringTag)]: \'BigInt\' }',
+            'object lying about being a BigInt inspects as an object'
+        );
+    });
+
+    t.test('numericSeparator', function (st) {
+        st.equal(inspect(BigInt(0), { numericSeparator: false }), '0n', '0n, numericSeparator false');
+        st.equal(inspect(BigInt(0), { numericSeparator: true }), '0n', '0n, numericSeparator true');
+
+        st.equal(inspect(BigInt(1234), { numericSeparator: false }), '1234n', '1234n, numericSeparator false');
+        st.equal(inspect(BigInt(1234), { numericSeparator: true }), '1_234n', '1234n, numericSeparator true');
+        st.equal(inspect(BigInt(-1234), { numericSeparator: false }), '-1234n', '1234n, numericSeparator false');
+        st.equal(inspect(BigInt(-1234), { numericSeparator: true }), '-1_234n', '1234n, numericSeparator true');
+
+        st.end();
+    });
+
+    t.end();
+});
diff --git a/backend/node_modules/object-inspect/test/browser/dom.js b/backend/node_modules/object-inspect/test/browser/dom.js
new file mode 100644
index 0000000..210c0b2
--- /dev/null
+++ b/backend/node_modules/object-inspect/test/browser/dom.js
@@ -0,0 +1,15 @@
+var inspect = require('../../');
+var test = require('tape');
+
+test('dom element', function (t) {
+    t.plan(1);
+
+    var d = document.createElement('div');
+    d.setAttribute('id', 'beep');
+    d.innerHTML = '<b>wooo</b><i>iiiii</i>';
+
+    t.equal(
+        inspect([d, { a: 3, b: 4, c: [5, 6, [7, [8, [9]]]] }]),
+        '[ <div id="beep">...</div>, { a: 3, b: 4, c: [ 5, 6, [ 7, [ 8, [Object] ] ] ] } ]'
+    );
+});
diff --git a/backend/node_modules/object-inspect/test/circular.js b/backend/node_modules/object-inspect/test/circular.js
new file mode 100644
index 0000000..5df4233
--- /dev/null
+++ b/backend/node_modules/object-inspect/test/circular.js
@@ -0,0 +1,16 @@
+var inspect = require('../');
+var test = require('tape');
+
+test('circular', function (t) {
+    t.plan(2);
+    var obj = { a: 1, b: [3, 4] };
+    obj.c = obj;
+    t.equal(inspect(obj), '{ a: 1, b: [ 3, 4 ], c: [Circular] }');
+
+    var double = {};
+    double.a = [double];
+    double.b = {};
+    double.b.inner = double.b;
+    double.b.obj = double;
+    t.equal(inspect(double), '{ a: [ [Circular] ], b: { inner: [Circular], obj: [Circular] } }');
+});
diff --git a/backend/node_modules/object-inspect/test/deep.js b/backend/node_modules/object-inspect/test/deep.js
new file mode 100644
index 0000000..99ce32a
--- /dev/null
+++ b/backend/node_modules/object-inspect/test/deep.js
@@ -0,0 +1,12 @@
+var inspect = require('../');
+var test = require('tape');
+
+test('deep', function (t) {
+    t.plan(4);
+    var obj = [[[[[[500]]]]]];
+    t.equal(inspect(obj), '[ [ [ [ [ [Array] ] ] ] ] ]');
+    t.equal(inspect(obj, { depth: 4 }), '[ [ [ [ [Array] ] ] ] ]');
+    t.equal(inspect(obj, { depth: 2 }), '[ [ [Array] ] ]');
+
+    t.equal(inspect([[[{ a: 1 }]]], { depth: 3 }), '[ [ [ [Object] ] ] ]');
+});
diff --git a/backend/node_modules/object-inspect/test/element.js b/backend/node_modules/object-inspect/test/element.js
new file mode 100644
index 0000000..47fa9e2
--- /dev/null
+++ b/backend/node_modules/object-inspect/test/element.js
@@ -0,0 +1,53 @@
+var inspect = require('../');
+var test = require('tape');
+
+test('element', function (t) {
+    t.plan(3);
+    var elem = {
+        nodeName: 'div',
+        attributes: [{ name: 'class', value: 'row' }],
+        getAttribute: function (key) { return key; },
+        childNodes: []
+    };
+    var obj = [1, elem, 3];
+    t.deepEqual(inspect(obj), '[ 1, <div class="row"></div>, 3 ]');
+    t.deepEqual(inspect(obj, { quoteStyle: 'single' }), "[ 1, <div class='row'></div>, 3 ]");
+    t.deepEqual(inspect(obj, { quoteStyle: 'double' }), '[ 1, <div class="row"></div>, 3 ]');
+});
+
+test('element no attr', function (t) {
+    t.plan(1);
+    var elem = {
+        nodeName: 'div',
+        getAttribute: function (key) { return key; },
+        childNodes: []
+    };
+    var obj = [1, elem, 3];
+    t.deepEqual(inspect(obj), '[ 1, <div></div>, 3 ]');
+});
+
+test('element with contents', function (t) {
+    t.plan(1);
+    var elem = {
+        nodeName: 'div',
+        getAttribute: function (key) { return key; },
+        childNodes: [{ nodeName: 'b' }]
+    };
+    var obj = [1, elem, 3];
+    t.deepEqual(inspect(obj), '[ 1, <div>...</div>, 3 ]');
+});
+
+test('element instance', function (t) {
+    t.plan(1);
+    var h = global.HTMLElement;
+    global.HTMLElement = function (name, attr) {
+        this.nodeName = name;
+        this.attributes = attr;
+    };
+    global.HTMLElement.prototype.getAttribute = function () {};
+
+    var elem = new global.HTMLElement('div', []);
+    var obj = [1, elem, 3];
+    t.deepEqual(inspect(obj), '[ 1, <div></div>, 3 ]');
+    global.HTMLElement = h;
+});
diff --git a/backend/node_modules/object-inspect/test/err.js b/backend/node_modules/object-inspect/test/err.js
new file mode 100644
index 0000000..cc1d884
--- /dev/null
+++ b/backend/node_modules/object-inspect/test/err.js
@@ -0,0 +1,48 @@
+var test = require('tape');
+var ErrorWithCause = require('error-cause/Error');
+
+var inspect = require('../');
+
+test('type error', function (t) {
+    t.plan(1);
+    var aerr = new TypeError();
+    aerr.foo = 555;
+    aerr.bar = [1, 2, 3];
+
+    var berr = new TypeError('tuv');
+    berr.baz = 555;
+
+    var cerr = new SyntaxError();
+    cerr.message = 'whoa';
+    cerr['a-b'] = 5;
+
+    var withCause = new ErrorWithCause('foo', { cause: 'bar' });
+    var withCausePlus = new ErrorWithCause('foo', { cause: 'bar' });
+    withCausePlus.foo = 'bar';
+    var withUndefinedCause = new ErrorWithCause('foo', { cause: undefined });
+    var withEnumerableCause = new Error('foo');
+    withEnumerableCause.cause = 'bar';
+
+    var obj = [
+        new TypeError(),
+        new TypeError('xxx'),
+        aerr,
+        berr,
+        cerr,
+        withCause,
+        withCausePlus,
+        withUndefinedCause,
+        withEnumerableCause
+    ];
+    t.equal(inspect(obj), '[ ' + [
+        '[TypeError]',
+        '[TypeError: xxx]',
+        '{ [TypeError] foo: 555, bar: [ 1, 2, 3 ] }',
+        '{ [TypeError: tuv] baz: 555 }',
+        '{ [SyntaxError: whoa] message: \'whoa\', \'a-b\': 5 }',
+        'cause' in Error.prototype ? '[Error: foo]' : '{ [Error: foo] [cause]: \'bar\' }',
+        '{ [Error: foo] ' + ('cause' in Error.prototype ? '' : '[cause]: \'bar\', ') + 'foo: \'bar\' }',
+        'cause' in Error.prototype ? '[Error: foo]' : '{ [Error: foo] [cause]: undefined }',
+        '{ [Error: foo] cause: \'bar\' }'
+    ].join(', ') + ' ]');
+});
diff --git a/backend/node_modules/object-inspect/test/fakes.js b/backend/node_modules/object-inspect/test/fakes.js
new file mode 100644
index 0000000..a65c08c
--- /dev/null
+++ b/backend/node_modules/object-inspect/test/fakes.js
@@ -0,0 +1,29 @@
+'use strict';
+
+var inspect = require('../');
+var test = require('tape');
+var hasToStringTag = require('has-tostringtag/shams')();
+var forEach = require('for-each');
+
+test('fakes', { skip: !hasToStringTag }, function (t) {
+    forEach([
+        'Array',
+        'Boolean',
+        'Date',
+        'Error',
+        'Number',
+        'RegExp',
+        'String'
+    ], function (expected) {
+        var faker = {};
+        faker[Symbol.toStringTag] = expected;
+
+        t.equal(
+            inspect(faker),
+            '{ [Symbol(Symbol.toStringTag)]: \'' + expected + '\' }',
+            'faker masquerading as ' + expected + ' is not shown as one'
+        );
+    });
+
+    t.end();
+});
diff --git a/backend/node_modules/object-inspect/test/fn.js b/backend/node_modules/object-inspect/test/fn.js
new file mode 100644
index 0000000..de3ca62
--- /dev/null
+++ b/backend/node_modules/object-inspect/test/fn.js
@@ -0,0 +1,76 @@
+var inspect = require('../');
+var test = require('tape');
+var arrow = require('make-arrow-function')();
+var functionsHaveConfigurableNames = require('functions-have-names').functionsHaveConfigurableNames();
+
+test('function', function (t) {
+    t.plan(1);
+    var obj = [1, 2, function f(n) { return n; }, 4];
+    t.equal(inspect(obj), '[ 1, 2, [Function: f], 4 ]');
+});
+
+test('function name', function (t) {
+    t.plan(1);
+    var f = (function () {
+        return function () {};
+    }());
+    f.toString = function toStr() { return 'function xxx () {}'; };
+    var obj = [1, 2, f, 4];
+    t.equal(inspect(obj), '[ 1, 2, [Function (anonymous)] { toString: [Function: toStr] }, 4 ]');
+});
+
+test('anon function', function (t) {
+    var f = (function () {
+        return function () {};
+    }());
+    var obj = [1, 2, f, 4];
+    t.equal(inspect(obj), '[ 1, 2, [Function (anonymous)], 4 ]');
+
+    t.end();
+});
+
+test('arrow function', { skip: !arrow }, function (t) {
+    t.equal(inspect(arrow), '[Function (anonymous)]');
+
+    t.end();
+});
+
+test('truly nameless function', { skip: !arrow || !functionsHaveConfigurableNames }, function (t) {
+    function f() {}
+    Object.defineProperty(f, 'name', { value: false });
+    t.equal(f.name, false);
+    t.equal(
+        inspect(f),
+        '[Function: f]',
+        'named function with falsy `.name` does not hide its original name'
+    );
+
+    function g() {}
+    Object.defineProperty(g, 'name', { value: true });
+    t.equal(g.name, true);
+    t.equal(
+        inspect(g),
+        '[Function: true]',
+        'named function with truthy `.name` hides its original name'
+    );
+
+    var anon = function () {}; // eslint-disable-line func-style
+    Object.defineProperty(anon, 'name', { value: null });
+    t.equal(anon.name, null);
+    t.equal(
+        inspect(anon),
+        '[Function (anonymous)]',
+        'anon function with falsy `.name` does not hide its anonymity'
+    );
+
+    var anon2 = function () {}; // eslint-disable-line func-style
+    Object.defineProperty(anon2, 'name', { value: 1 });
+    t.equal(anon2.name, 1);
+    t.equal(
+        inspect(anon2),
+        '[Function: 1]',
+        'anon function with truthy `.name` hides its anonymity'
+    );
+
+    t.end();
+});
diff --git a/backend/node_modules/object-inspect/test/global.js b/backend/node_modules/object-inspect/test/global.js
new file mode 100644
index 0000000..c57216a
--- /dev/null
+++ b/backend/node_modules/object-inspect/test/global.js
@@ -0,0 +1,17 @@
+'use strict';
+
+var inspect = require('../');
+
+var test = require('tape');
+var globalThis = require('globalthis')();
+
+test('global object', function (t) {
+    /* eslint-env browser */
+    var expected = typeof window === 'undefined' ? 'globalThis' : 'Window';
+    t.equal(
+        inspect([globalThis]),
+        '[ { [object ' + expected + '] } ]'
+    );
+
+    t.end();
+});
diff --git a/backend/node_modules/object-inspect/test/has.js b/backend/node_modules/object-inspect/test/has.js
new file mode 100644
index 0000000..01800de
--- /dev/null
+++ b/backend/node_modules/object-inspect/test/has.js
@@ -0,0 +1,15 @@
+'use strict';
+
+var inspect = require('../');
+var test = require('tape');
+var mockProperty = require('mock-property');
+
+test('when Object#hasOwnProperty is deleted', function (t) {
+    t.plan(1);
+    var arr = [1, , 3]; // eslint-disable-line no-sparse-arrays
+
+    t.teardown(mockProperty(Array.prototype, 1, { value: 2 })); // this is needed to account for "in" vs "hasOwnProperty"
+    t.teardown(mockProperty(Object.prototype, 'hasOwnProperty', { 'delete': true }));
+
+    t.equal(inspect(arr), '[ 1, , 3 ]');
+});
diff --git a/backend/node_modules/object-inspect/test/holes.js b/backend/node_modules/object-inspect/test/holes.js
new file mode 100644
index 0000000..87fc8c8
--- /dev/null
+++ b/backend/node_modules/object-inspect/test/holes.js
@@ -0,0 +1,15 @@
+var test = require('tape');
+var inspect = require('../');
+
+var xs = ['a', 'b'];
+xs[5] = 'f';
+xs[7] = 'j';
+xs[8] = 'k';
+
+test('holes', function (t) {
+    t.plan(1);
+    t.equal(
+        inspect(xs),
+        "[ 'a', 'b', , , , 'f', , 'j', 'k' ]"
+    );
+});
diff --git a/backend/node_modules/object-inspect/test/indent-option.js b/backend/node_modules/object-inspect/test/indent-option.js
new file mode 100644
index 0000000..89d8fce
--- /dev/null
+++ b/backend/node_modules/object-inspect/test/indent-option.js
@@ -0,0 +1,271 @@
+var test = require('tape');
+var forEach = require('for-each');
+
+var inspect = require('../');
+
+test('bad indent options', function (t) {
+    forEach([
+        undefined,
+        true,
+        false,
+        -1,
+        1.2,
+        Infinity,
+        -Infinity,
+        NaN
+    ], function (indent) {
+        t['throws'](
+            function () { inspect('', { indent: indent }); },
+            TypeError,
+            inspect(indent) + ' is invalid'
+        );
+    });
+
+    t.end();
+});
+
+test('simple object with indent', function (t) {
+    t.plan(2);
+
+    var obj = { a: 1, b: 2 };
+
+    var expectedSpaces = [
+        '{',
+        '  a: 1,',
+        '  b: 2',
+        '}'
+    ].join('\n');
+    var expectedTabs = [
+        '{',
+        '	a: 1,',
+        '	b: 2',
+        '}'
+    ].join('\n');
+
+    t.equal(inspect(obj, { indent: 2 }), expectedSpaces, 'two');
+    t.equal(inspect(obj, { indent: '\t' }), expectedTabs, 'tabs');
+});
+
+test('two deep object with indent', function (t) {
+    t.plan(2);
+
+    var obj = { a: 1, b: { c: 3, d: 4 } };
+
+    var expectedSpaces = [
+        '{',
+        '  a: 1,',
+        '  b: {',
+        '    c: 3,',
+        '    d: 4',
+        '  }',
+        '}'
+    ].join('\n');
+    var expectedTabs = [
+        '{',
+        '	a: 1,',
+        '	b: {',
+        '		c: 3,',
+        '		d: 4',
+        '	}',
+        '}'
+    ].join('\n');
+
+    t.equal(inspect(obj, { indent: 2 }), expectedSpaces, 'two');
+    t.equal(inspect(obj, { indent: '\t' }), expectedTabs, 'tabs');
+});
+
+test('simple array with all single line elements', function (t) {
+    t.plan(2);
+
+    var obj = [1, 2, 3, 'asdf\nsdf'];
+
+    var expected = '[ 1, 2, 3, \'asdf\\nsdf\' ]';
+
+    t.equal(inspect(obj, { indent: 2 }), expected, 'two');
+    t.equal(inspect(obj, { indent: '\t' }), expected, 'tabs');
+});
+
+test('array with complex elements', function (t) {
+    t.plan(2);
+
+    var obj = [1, { a: 1, b: { c: 1 } }, 'asdf\nsdf'];
+
+    var expectedSpaces = [
+        '[',
+        '  1,',
+        '  {',
+        '    a: 1,',
+        '    b: {',
+        '      c: 1',
+        '    }',
+        '  },',
+        '  \'asdf\\nsdf\'',
+        ']'
+    ].join('\n');
+    var expectedTabs = [
+        '[',
+        '	1,',
+        '	{',
+        '		a: 1,',
+        '		b: {',
+        '			c: 1',
+        '		}',
+        '	},',
+        '	\'asdf\\nsdf\'',
+        ']'
+    ].join('\n');
+
+    t.equal(inspect(obj, { indent: 2 }), expectedSpaces, 'two');
+    t.equal(inspect(obj, { indent: '\t' }), expectedTabs, 'tabs');
+});
+
+test('values', function (t) {
+    t.plan(2);
+    var obj = [{}, [], { 'a-b': 5 }];
+
+    var expectedSpaces = [
+        '[',
+        '  {},',
+        '  [],',
+        '  {',
+        '    \'a-b\': 5',
+        '  }',
+        ']'
+    ].join('\n');
+    var expectedTabs = [
+        '[',
+        '	{},',
+        '	[],',
+        '	{',
+        '		\'a-b\': 5',
+        '	}',
+        ']'
+    ].join('\n');
+
+    t.equal(inspect(obj, { indent: 2 }), expectedSpaces, 'two');
+    t.equal(inspect(obj, { indent: '\t' }), expectedTabs, 'tabs');
+});
+
+test('Map', { skip: typeof Map !== 'function' }, function (t) {
+    var map = new Map();
+    map.set({ a: 1 }, ['b']);
+    map.set(3, NaN);
+
+    var expectedStringSpaces = [
+        'Map (2) {',
+        '  { a: 1 } => [ \'b\' ],',
+        '  3 => NaN',
+        '}'
+    ].join('\n');
+    var expectedStringTabs = [
+        'Map (2) {',
+        '	{ a: 1 } => [ \'b\' ],',
+        '	3 => NaN',
+        '}'
+    ].join('\n');
+    var expectedStringTabsDoubleQuotes = [
+        'Map (2) {',
+        '	{ a: 1 } => [ "b" ],',
+        '	3 => NaN',
+        '}'
+    ].join('\n');
+
+    t.equal(
+        inspect(map, { indent: 2 }),
+        expectedStringSpaces,
+        'Map keys are not indented (two)'
+    );
+    t.equal(
+        inspect(map, { indent: '\t' }),
+        expectedStringTabs,
+        'Map keys are not indented (tabs)'
+    );
+    t.equal(
+        inspect(map, { indent: '\t', quoteStyle: 'double' }),
+        expectedStringTabsDoubleQuotes,
+        'Map keys are not indented (tabs + double quotes)'
+    );
+
+    t.equal(inspect(new Map(), { indent: 2 }), 'Map (0) {}', 'empty Map should show as empty (two)');
+    t.equal(inspect(new Map(), { indent: '\t' }), 'Map (0) {}', 'empty Map should show as empty (tabs)');
+
+    var nestedMap = new Map();
+    nestedMap.set(nestedMap, map);
+    var expectedNestedSpaces = [
+        'Map (1) {',
+        '  [Circular] => Map (2) {',
+        '    { a: 1 } => [ \'b\' ],',
+        '    3 => NaN',
+        '  }',
+        '}'
+    ].join('\n');
+    var expectedNestedTabs = [
+        'Map (1) {',
+        '	[Circular] => Map (2) {',
+        '		{ a: 1 } => [ \'b\' ],',
+        '		3 => NaN',
+        '	}',
+        '}'
+    ].join('\n');
+    t.equal(inspect(nestedMap, { indent: 2 }), expectedNestedSpaces, 'Map containing a Map should work (two)');
+    t.equal(inspect(nestedMap, { indent: '\t' }), expectedNestedTabs, 'Map containing a Map should work (tabs)');
+
+    t.end();
+});
+
+test('Set', { skip: typeof Set !== 'function' }, function (t) {
+    var set = new Set();
+    set.add({ a: 1 });
+    set.add(['b']);
+    var expectedStringSpaces = [
+        'Set (2) {',
+        '  {',
+        '    a: 1',
+        '  },',
+        '  [ \'b\' ]',
+        '}'
+    ].join('\n');
+    var expectedStringTabs = [
+        'Set (2) {',
+        '	{',
+        '		a: 1',
+        '	},',
+        '	[ \'b\' ]',
+        '}'
+    ].join('\n');
+    t.equal(inspect(set, { indent: 2 }), expectedStringSpaces, 'new Set([{ a: 1 }, ["b"]]) should show size and contents (two)');
+    t.equal(inspect(set, { indent: '\t' }), expectedStringTabs, 'new Set([{ a: 1 }, ["b"]]) should show size and contents (tabs)');
+
+    t.equal(inspect(new Set(), { indent: 2 }), 'Set (0) {}', 'empty Set should show as empty (two)');
+    t.equal(inspect(new Set(), { indent: '\t' }), 'Set (0) {}', 'empty Set should show as empty (tabs)');
+
+    var nestedSet = new Set();
+    nestedSet.add(set);
+    nestedSet.add(nestedSet);
+    var expectedNestedSpaces = [
+        'Set (2) {',
+        '  Set (2) {',
+        '    {',
+        '      a: 1',
+        '    },',
+        '    [ \'b\' ]',
+        '  },',
+        '  [Circular]',
+        '}'
+    ].join('\n');
+    var expectedNestedTabs = [
+        'Set (2) {',
+        '	Set (2) {',
+        '		{',
+        '			a: 1',
+        '		},',
+        '		[ \'b\' ]',
+        '	},',
+        '	[Circular]',
+        '}'
+    ].join('\n');
+    t.equal(inspect(nestedSet, { indent: 2 }), expectedNestedSpaces, 'Set containing a Set should work (two)');
+    t.equal(inspect(nestedSet, { indent: '\t' }), expectedNestedTabs, 'Set containing a Set should work (tabs)');
+
+    t.end();
+});
diff --git a/backend/node_modules/object-inspect/test/inspect.js b/backend/node_modules/object-inspect/test/inspect.js
new file mode 100644
index 0000000..1abf81b
--- /dev/null
+++ b/backend/node_modules/object-inspect/test/inspect.js
@@ -0,0 +1,139 @@
+var test = require('tape');
+var hasSymbols = require('has-symbols/shams')();
+var utilInspect = require('../util.inspect');
+var repeat = require('string.prototype.repeat');
+
+var inspect = require('..');
+
+test('inspect', function (t) {
+    t.plan(5);
+
+    var obj = [{ inspect: function xyzInspect() { return '!XYZ¡'; } }, []];
+    var stringResult = '[ !XYZ¡, [] ]';
+    var falseResult = '[ { inspect: [Function: xyzInspect] }, [] ]';
+
+    t.equal(inspect(obj), stringResult);
+    t.equal(inspect(obj, { customInspect: true }), stringResult);
+    t.equal(inspect(obj, { customInspect: 'symbol' }), falseResult);
+    t.equal(inspect(obj, { customInspect: false }), falseResult);
+    t['throws'](
+        function () { inspect(obj, { customInspect: 'not a boolean or "symbol"' }); },
+        TypeError,
+        '`customInspect` must be a boolean or the string "symbol"'
+    );
+});
+
+test('inspect custom symbol', { skip: !hasSymbols || !utilInspect || !utilInspect.custom }, function (t) {
+    t.plan(4);
+
+    var obj = { inspect: function stringInspect() { return 'string'; } };
+    obj[utilInspect.custom] = function custom() { return 'symbol'; };
+
+    var symbolResult = '[ symbol, [] ]';
+    var stringResult = '[ string, [] ]';
+    var falseResult = '[ { inspect: [Function: stringInspect]' + (utilInspect.custom ? ', [' + inspect(utilInspect.custom) + ']: [Function: custom]' : '') + ' }, [] ]';
+
+    var symbolStringFallback = utilInspect.custom ? symbolResult : stringResult;
+    var symbolFalseFallback = utilInspect.custom ? symbolResult : falseResult;
+
+    t.equal(inspect([obj, []]), symbolStringFallback);
+    t.equal(inspect([obj, []], { customInspect: true }), symbolStringFallback);
+    t.equal(inspect([obj, []], { customInspect: 'symbol' }), symbolFalseFallback);
+    t.equal(inspect([obj, []], { customInspect: false }), falseResult);
+});
+
+test('symbols', { skip: !hasSymbols }, function (t) {
+    t.plan(2);
+
+    var obj = { a: 1 };
+    obj[Symbol('test')] = 2;
+    obj[Symbol.iterator] = 3;
+    Object.defineProperty(obj, Symbol('non-enum'), {
+        enumerable: false,
+        value: 4
+    });
+
+    if (typeof Symbol.iterator === 'symbol') {
+        t.equal(inspect(obj), '{ a: 1, [Symbol(test)]: 2, [Symbol(Symbol.iterator)]: 3 }', 'object with symbols');
+        t.equal(inspect([obj, []]), '[ { a: 1, [Symbol(test)]: 2, [Symbol(Symbol.iterator)]: 3 }, [] ]', 'object with symbols in array');
+    } else {
+        // symbol sham key ordering is unreliable
+        t.match(
+            inspect(obj),
+            /^(?:{ a: 1, \[Symbol\(test\)\]: 2, \[Symbol\(Symbol.iterator\)\]: 3 }|{ a: 1, \[Symbol\(Symbol.iterator\)\]: 3, \[Symbol\(test\)\]: 2 })$/,
+            'object with symbols (nondeterministic symbol sham key ordering)'
+        );
+        t.match(
+            inspect([obj, []]),
+            /^\[ (?:{ a: 1, \[Symbol\(test\)\]: 2, \[Symbol\(Symbol.iterator\)\]: 3 }|{ a: 1, \[Symbol\(Symbol.iterator\)\]: 3, \[Symbol\(test\)\]: 2 }), \[\] \]$/,
+            'object with symbols in array (nondeterministic symbol sham key ordering)'
+        );
+    }
+});
+
+test('maxStringLength', function (t) {
+    t['throws'](
+        function () { inspect('', { maxStringLength: -1 }); },
+        TypeError,
+        'maxStringLength must be >= 0, or Infinity, not negative'
+    );
+
+    var str = repeat('a', 1e8);
+
+    t.equal(
+        inspect([str], { maxStringLength: 10 }),
+        '[ \'aaaaaaaaaa\'... 99999990 more characters ]',
+        'maxStringLength option limits output'
+    );
+
+    t.equal(
+        inspect(['f'], { maxStringLength: null }),
+        '[ \'\'... 1 more character ]',
+        'maxStringLength option accepts `null`'
+    );
+
+    t.equal(
+        inspect([str], { maxStringLength: Infinity }),
+        '[ \'' + str + '\' ]',
+        'maxStringLength option accepts ∞'
+    );
+
+    t.end();
+});
+
+test('inspect options', { skip: !utilInspect.custom }, function (t) {
+    var obj = {};
+    obj[utilInspect.custom] = function () {
+        return JSON.stringify(arguments);
+    };
+    t.equal(
+        inspect(obj),
+        utilInspect(obj, { depth: 5 }),
+        'custom symbols will use node\'s inspect'
+    );
+    t.equal(
+        inspect(obj, { depth: 2 }),
+        utilInspect(obj, { depth: 2 }),
+        'a reduced depth will be passed to node\'s inspect'
+    );
+    t.equal(
+        inspect({ d1: obj }, { depth: 3 }),
+        '{ d1: ' + utilInspect(obj, { depth: 2 }) + ' }',
+        'deep objects will receive a reduced depth'
+    );
+    t.equal(
+        inspect({ d1: obj }, { depth: 1 }),
+        '{ d1: [Object] }',
+        'unlike nodejs inspect, customInspect will not be used once the depth is exceeded.'
+    );
+    t.end();
+});
+
+test('inspect URL', { skip: typeof URL === 'undefined' }, function (t) {
+    t.match(
+        inspect(new URL('https://nodejs.org')),
+        /nodejs\.org/, // Different environments stringify it differently
+        'url can be inspected'
+    );
+    t.end();
+});
diff --git a/backend/node_modules/object-inspect/test/lowbyte.js b/backend/node_modules/object-inspect/test/lowbyte.js
new file mode 100644
index 0000000..68a345d
--- /dev/null
+++ b/backend/node_modules/object-inspect/test/lowbyte.js
@@ -0,0 +1,12 @@
+var test = require('tape');
+var inspect = require('../');
+
+var obj = { x: 'a\r\nb', y: '\x05! \x1f \x12' };
+
+test('interpolate low bytes', function (t) {
+    t.plan(1);
+    t.equal(
+        inspect(obj),
+        "{ x: 'a\\r\\nb', y: '\\x05! \\x1F \\x12' }"
+    );
+});
diff --git a/backend/node_modules/object-inspect/test/number.js b/backend/node_modules/object-inspect/test/number.js
new file mode 100644
index 0000000..8f287e8
--- /dev/null
+++ b/backend/node_modules/object-inspect/test/number.js
@@ -0,0 +1,58 @@
+var test = require('tape');
+var v = require('es-value-fixtures');
+var forEach = require('for-each');
+
+var inspect = require('../');
+
+test('negative zero', function (t) {
+    t.equal(inspect(0), '0', 'inspect(0) === "0"');
+    t.equal(inspect(Object(0)), 'Object(0)', 'inspect(Object(0)) === "Object(0)"');
+
+    t.equal(inspect(-0), '-0', 'inspect(-0) === "-0"');
+    t.equal(inspect(Object(-0)), 'Object(-0)', 'inspect(Object(-0)) === "Object(-0)"');
+
+    t.end();
+});
+
+test('numericSeparator', function (t) {
+    forEach(v.nonBooleans, function (nonBoolean) {
+        t['throws'](
+            function () { inspect(true, { numericSeparator: nonBoolean }); },
+            TypeError,
+            inspect(nonBoolean) + ' is not a boolean'
+        );
+    });
+
+    t.test('3 digit numbers', function (st) {
+        var failed = false;
+        for (var i = -999; i < 1000; i += 1) {
+            var actual = inspect(i);
+            var actualSepNo = inspect(i, { numericSeparator: false });
+            var actualSepYes = inspect(i, { numericSeparator: true });
+            var expected = String(i);
+            if (actual !== expected || actualSepNo !== expected || actualSepYes !== expected) {
+                failed = true;
+                t.equal(actual, expected);
+                t.equal(actualSepNo, expected);
+                t.equal(actualSepYes, expected);
+            }
+        }
+
+        st.notOk(failed, 'all 3 digit numbers passed');
+
+        st.end();
+    });
+
+    t.equal(inspect(1e3), '1000', '1000');
+    t.equal(inspect(1e3, { numericSeparator: false }), '1000', '1000, numericSeparator false');
+    t.equal(inspect(1e3, { numericSeparator: true }), '1_000', '1000, numericSeparator true');
+    t.equal(inspect(-1e3), '-1000', '-1000');
+    t.equal(inspect(-1e3, { numericSeparator: false }), '-1000', '-1000, numericSeparator false');
+    t.equal(inspect(-1e3, { numericSeparator: true }), '-1_000', '-1000, numericSeparator true');
+
+    t.equal(inspect(1234.5678, { numericSeparator: true }), '1_234.567_8', 'fractional numbers get separators');
+    t.equal(inspect(1234.56789, { numericSeparator: true }), '1_234.567_89', 'fractional numbers get separators');
+    t.equal(inspect(1234.567891, { numericSeparator: true }), '1_234.567_891', 'fractional numbers get separators');
+
+    t.end();
+});
diff --git a/backend/node_modules/object-inspect/test/quoteStyle.js b/backend/node_modules/object-inspect/test/quoteStyle.js
new file mode 100644
index 0000000..da23e63
--- /dev/null
+++ b/backend/node_modules/object-inspect/test/quoteStyle.js
@@ -0,0 +1,26 @@
+'use strict';
+
+var inspect = require('../');
+var test = require('tape');
+
+test('quoteStyle option', function (t) {
+    t['throws'](function () { inspect(null, { quoteStyle: false }); }, 'false is not a valid value');
+    t['throws'](function () { inspect(null, { quoteStyle: true }); }, 'true is not a valid value');
+    t['throws'](function () { inspect(null, { quoteStyle: '' }); }, '"" is not a valid value');
+    t['throws'](function () { inspect(null, { quoteStyle: {} }); }, '{} is not a valid value');
+    t['throws'](function () { inspect(null, { quoteStyle: [] }); }, '[] is not a valid value');
+    t['throws'](function () { inspect(null, { quoteStyle: 42 }); }, '42 is not a valid value');
+    t['throws'](function () { inspect(null, { quoteStyle: NaN }); }, 'NaN is not a valid value');
+    t['throws'](function () { inspect(null, { quoteStyle: function () {} }); }, 'a function is not a valid value');
+
+    t.equal(inspect('"', { quoteStyle: 'single' }), '\'"\'', 'double quote, quoteStyle: "single"');
+    t.equal(inspect('"', { quoteStyle: 'double' }), '"\\""', 'double quote, quoteStyle: "double"');
+
+    t.equal(inspect('\'', { quoteStyle: 'single' }), '\'\\\'\'', 'single quote, quoteStyle: "single"');
+    t.equal(inspect('\'', { quoteStyle: 'double' }), '"\'"', 'single quote, quoteStyle: "double"');
+
+    t.equal(inspect('`', { quoteStyle: 'single' }), '\'`\'', 'backtick, quoteStyle: "single"');
+    t.equal(inspect('`', { quoteStyle: 'double' }), '"`"', 'backtick, quoteStyle: "double"');
+
+    t.end();
+});
diff --git a/backend/node_modules/object-inspect/test/toStringTag.js b/backend/node_modules/object-inspect/test/toStringTag.js
new file mode 100644
index 0000000..95f8270
--- /dev/null
+++ b/backend/node_modules/object-inspect/test/toStringTag.js
@@ -0,0 +1,40 @@
+'use strict';
+
+var test = require('tape');
+var hasToStringTag = require('has-tostringtag/shams')();
+
+var inspect = require('../');
+
+test('Symbol.toStringTag', { skip: !hasToStringTag }, function (t) {
+    t.plan(4);
+
+    var obj = { a: 1 };
+    t.equal(inspect(obj), '{ a: 1 }', 'object, no Symbol.toStringTag');
+
+    obj[Symbol.toStringTag] = 'foo';
+    t.equal(inspect(obj), '{ a: 1, [Symbol(Symbol.toStringTag)]: \'foo\' }', 'object with Symbol.toStringTag');
+
+    t.test('null objects', { skip: 'toString' in { __proto__: null } }, function (st) {
+        st.plan(2);
+
+        var dict = { __proto__: null, a: 1 };
+        st.equal(inspect(dict), '[Object: null prototype] { a: 1 }', 'null object with Symbol.toStringTag');
+
+        dict[Symbol.toStringTag] = 'Dict';
+        st.equal(inspect(dict), '[Dict: null prototype] { a: 1, [Symbol(Symbol.toStringTag)]: \'Dict\' }', 'null object with Symbol.toStringTag');
+    });
+
+    t.test('instances', function (st) {
+        st.plan(4);
+
+        function C() {
+            this.a = 1;
+        }
+        st.equal(Object.prototype.toString.call(new C()), '[object Object]', 'instance, no toStringTag, Object.prototype.toString');
+        st.equal(inspect(new C()), 'C { a: 1 }', 'instance, no toStringTag');
+
+        C.prototype[Symbol.toStringTag] = 'Class!';
+        st.equal(Object.prototype.toString.call(new C()), '[object Class!]', 'instance, with toStringTag, Object.prototype.toString');
+        st.equal(inspect(new C()), 'C [Class!] { a: 1 }', 'instance, with toStringTag');
+    });
+});
diff --git a/backend/node_modules/object-inspect/test/undef.js b/backend/node_modules/object-inspect/test/undef.js
new file mode 100644
index 0000000..e3f4961
--- /dev/null
+++ b/backend/node_modules/object-inspect/test/undef.js
@@ -0,0 +1,12 @@
+var test = require('tape');
+var inspect = require('../');
+
+var obj = { a: 1, b: [3, 4, undefined, null], c: undefined, d: null };
+
+test('undef and null', function (t) {
+    t.plan(1);
+    t.equal(
+        inspect(obj),
+        '{ a: 1, b: [ 3, 4, undefined, null ], c: undefined, d: null }'
+    );
+});
diff --git a/backend/node_modules/object-inspect/test/values.js b/backend/node_modules/object-inspect/test/values.js
new file mode 100644
index 0000000..15986cd
--- /dev/null
+++ b/backend/node_modules/object-inspect/test/values.js
@@ -0,0 +1,261 @@
+'use strict';
+
+var inspect = require('../');
+var test = require('tape');
+var mockProperty = require('mock-property');
+var hasSymbols = require('has-symbols/shams')();
+var hasToStringTag = require('has-tostringtag/shams')();
+var forEach = require('for-each');
+var semver = require('semver');
+
+test('values', function (t) {
+    t.plan(1);
+    var obj = [{}, [], { 'a-b': 5 }];
+    t.equal(inspect(obj), '[ {}, [], { \'a-b\': 5 } ]');
+});
+
+test('arrays with properties', function (t) {
+    t.plan(1);
+    var arr = [3];
+    arr.foo = 'bar';
+    var obj = [1, 2, arr];
+    obj.baz = 'quux';
+    obj.index = -1;
+    t.equal(inspect(obj), '[ 1, 2, [ 3, foo: \'bar\' ], baz: \'quux\', index: -1 ]');
+});
+
+test('has', function (t) {
+    t.plan(1);
+    t.teardown(mockProperty(Object.prototype, 'hasOwnProperty', { 'delete': true }));
+
+    t.equal(inspect({ a: 1, b: 2 }), '{ a: 1, b: 2 }');
+});
+
+test('indexOf seen', function (t) {
+    t.plan(1);
+    var xs = [1, 2, 3, {}];
+    xs.push(xs);
+
+    var seen = [];
+    seen.indexOf = undefined;
+
+    t.equal(
+        inspect(xs, {}, 0, seen),
+        '[ 1, 2, 3, {}, [Circular] ]'
+    );
+});
+
+test('seen seen', function (t) {
+    t.plan(1);
+    var xs = [1, 2, 3];
+
+    var seen = [xs];
+    seen.indexOf = undefined;
+
+    t.equal(
+        inspect(xs, {}, 0, seen),
+        '[Circular]'
+    );
+});
+
+test('seen seen seen', function (t) {
+    t.plan(1);
+    var xs = [1, 2, 3];
+
+    var seen = [5, xs];
+    seen.indexOf = undefined;
+
+    t.equal(
+        inspect(xs, {}, 0, seen),
+        '[Circular]'
+    );
+});
+
+test('symbols', { skip: !hasSymbols }, function (t) {
+    var sym = Symbol('foo');
+    t.equal(inspect(sym), 'Symbol(foo)', 'Symbol("foo") should be "Symbol(foo)"');
+    if (typeof sym === 'symbol') {
+        // Symbol shams are incapable of differentiating boxed from unboxed symbols
+        t.equal(inspect(Object(sym)), 'Object(Symbol(foo))', 'Object(Symbol("foo")) should be "Object(Symbol(foo))"');
+    }
+
+    t.test('toStringTag', { skip: !hasToStringTag }, function (st) {
+        st.plan(1);
+
+        var faker = {};
+        faker[Symbol.toStringTag] = 'Symbol';
+        st.equal(
+            inspect(faker),
+            '{ [Symbol(Symbol.toStringTag)]: \'Symbol\' }',
+            'object lying about being a Symbol inspects as an object'
+        );
+    });
+
+    t.end();
+});
+
+test('Map', { skip: typeof Map !== 'function' }, function (t) {
+    var map = new Map();
+    map.set({ a: 1 }, ['b']);
+    map.set(3, NaN);
+    var expectedString = 'Map (2) {' + inspect({ a: 1 }) + ' => ' + inspect(['b']) + ', 3 => NaN}';
+    t.equal(inspect(map), expectedString, 'new Map([[{ a: 1 }, ["b"]], [3, NaN]]) should show size and contents');
+    t.equal(inspect(new Map()), 'Map (0) {}', 'empty Map should show as empty');
+
+    var nestedMap = new Map();
+    nestedMap.set(nestedMap, map);
+    t.equal(inspect(nestedMap), 'Map (1) {[Circular] => ' + expectedString + '}', 'Map containing a Map should work');
+
+    t.end();
+});
+
+test('WeakMap', { skip: typeof WeakMap !== 'function' }, function (t) {
+    var map = new WeakMap();
+    map.set({ a: 1 }, ['b']);
+    var expectedString = 'WeakMap { ? }';
+    t.equal(inspect(map), expectedString, 'new WeakMap([[{ a: 1 }, ["b"]]]) should not show size or contents');
+    t.equal(inspect(new WeakMap()), 'WeakMap { ? }', 'empty WeakMap should not show as empty');
+
+    t.end();
+});
+
+test('Set', { skip: typeof Set !== 'function' }, function (t) {
+    var set = new Set();
+    set.add({ a: 1 });
+    set.add(['b']);
+    var expectedString = 'Set (2) {' + inspect({ a: 1 }) + ', ' + inspect(['b']) + '}';
+    t.equal(inspect(set), expectedString, 'new Set([{ a: 1 }, ["b"]]) should show size and contents');
+    t.equal(inspect(new Set()), 'Set (0) {}', 'empty Set should show as empty');
+
+    var nestedSet = new Set();
+    nestedSet.add(set);
+    nestedSet.add(nestedSet);
+    t.equal(inspect(nestedSet), 'Set (2) {' + expectedString + ', [Circular]}', 'Set containing a Set should work');
+
+    t.end();
+});
+
+test('WeakSet', { skip: typeof WeakSet !== 'function' }, function (t) {
+    var map = new WeakSet();
+    map.add({ a: 1 });
+    var expectedString = 'WeakSet { ? }';
+    t.equal(inspect(map), expectedString, 'new WeakSet([{ a: 1 }]) should not show size or contents');
+    t.equal(inspect(new WeakSet()), 'WeakSet { ? }', 'empty WeakSet should not show as empty');
+
+    t.end();
+});
+
+test('WeakRef', { skip: typeof WeakRef !== 'function' }, function (t) {
+    var ref = new WeakRef({ a: 1 });
+    var expectedString = 'WeakRef { ? }';
+    t.equal(inspect(ref), expectedString, 'new WeakRef({ a: 1 }) should not show contents');
+
+    t.end();
+});
+
+test('FinalizationRegistry', { skip: typeof FinalizationRegistry !== 'function' }, function (t) {
+    var registry = new FinalizationRegistry(function () {});
+    var expectedString = 'FinalizationRegistry [FinalizationRegistry] {}';
+    t.equal(inspect(registry), expectedString, 'new FinalizationRegistry(function () {}) should work normallys');
+
+    t.end();
+});
+
+test('Strings', function (t) {
+    var str = 'abc';
+
+    t.equal(inspect(str), "'" + str + "'", 'primitive string shows as such');
+    t.equal(inspect(str, { quoteStyle: 'single' }), "'" + str + "'", 'primitive string shows as such, single quoted');
+    t.equal(inspect(str, { quoteStyle: 'double' }), '"' + str + '"', 'primitive string shows as such, double quoted');
+    t.equal(inspect(Object(str)), 'Object(' + inspect(str) + ')', 'String object shows as such');
+    t.equal(inspect(Object(str), { quoteStyle: 'single' }), 'Object(' + inspect(str, { quoteStyle: 'single' }) + ')', 'String object shows as such, single quoted');
+    t.equal(inspect(Object(str), { quoteStyle: 'double' }), 'Object(' + inspect(str, { quoteStyle: 'double' }) + ')', 'String object shows as such, double quoted');
+
+    t.end();
+});
+
+test('Numbers', function (t) {
+    var num = 42;
+
+    t.equal(inspect(num), String(num), 'primitive number shows as such');
+    t.equal(inspect(Object(num)), 'Object(' + inspect(num) + ')', 'Number object shows as such');
+
+    t.end();
+});
+
+test('Booleans', function (t) {
+    t.equal(inspect(true), String(true), 'primitive true shows as such');
+    t.equal(inspect(Object(true)), 'Object(' + inspect(true) + ')', 'Boolean object true shows as such');
+
+    t.equal(inspect(false), String(false), 'primitive false shows as such');
+    t.equal(inspect(Object(false)), 'Object(' + inspect(false) + ')', 'Boolean false object shows as such');
+
+    t.end();
+});
+
+test('Date', function (t) {
+    var now = new Date();
+    t.equal(inspect(now), String(now), 'Date shows properly');
+    t.equal(inspect(new Date(NaN)), 'Invalid Date', 'Invalid Date shows properly');
+
+    t.end();
+});
+
+test('RegExps', function (t) {
+    t.equal(inspect(/a/g), '/a/g', 'regex shows properly');
+    t.equal(inspect(new RegExp('abc', 'i')), '/abc/i', 'new RegExp shows properly');
+
+    var match = 'abc abc'.match(/[ab]+/);
+    delete match.groups; // for node < 10
+    t.equal(inspect(match), '[ \'ab\', index: 0, input: \'abc abc\' ]', 'RegExp match object shows properly');
+
+    t.end();
+});
+
+test('Proxies', { skip: typeof Proxy !== 'function' || !hasToStringTag }, function (t) {
+    var target = { proxy: true };
+    var fake = new Proxy(target, { has: function () { return false; } });
+
+    // needed to work around a weird difference in node v6.0 - v6.4 where non-present properties are not logged
+    var isNode60 = semver.satisfies(process.version, '6.0 - 6.4');
+
+    forEach([
+        'Boolean',
+        'Number',
+        'String',
+        'Symbol',
+        'Date'
+    ], function (tag) {
+        target[Symbol.toStringTag] = tag;
+
+        t.equal(
+            inspect(fake),
+            '{ ' + (isNode60 ? '' : 'proxy: true, ') + '[Symbol(Symbol.toStringTag)]: \'' + tag + '\' }',
+            'Proxy for + ' + tag + ' shows as the target, which has no slots'
+        );
+    });
+
+    t.end();
+});
+
+test('fakers', { skip: !hasToStringTag }, function (t) {
+    var target = { proxy: false };
+
+    forEach([
+        'Boolean',
+        'Number',
+        'String',
+        'Symbol',
+        'Date'
+    ], function (tag) {
+        target[Symbol.toStringTag] = tag;
+
+        t.equal(
+            inspect(target),
+            '{ proxy: false, [Symbol(Symbol.toStringTag)]: \'' + tag + '\' }',
+            'Object pretending to be ' + tag + ' does not trick us'
+        );
+    });
+
+    t.end();
+});
diff --git a/backend/node_modules/object-inspect/util.inspect.js b/backend/node_modules/object-inspect/util.inspect.js
new file mode 100644
index 0000000..7784fab
--- /dev/null
+++ b/backend/node_modules/object-inspect/util.inspect.js
@@ -0,0 +1 @@
+module.exports = require('util').inspect;
diff --git a/backend/node_modules/on-finished/HISTORY.md b/backend/node_modules/on-finished/HISTORY.md
new file mode 100644
index 0000000..1917595
--- /dev/null
+++ b/backend/node_modules/on-finished/HISTORY.md
@@ -0,0 +1,98 @@
+2.4.1 / 2022-02-22
+==================
+
+  * Fix error on early async hooks implementations
+
+2.4.0 / 2022-02-21
+==================
+
+  * Prevent loss of async hooks context
+
+2.3.0 / 2015-05-26
+==================
+
+  * Add defined behavior for HTTP `CONNECT` requests
+  * Add defined behavior for HTTP `Upgrade` requests
+  * deps: ee-first@1.1.1
+
+2.2.1 / 2015-04-22
+==================
+
+  * Fix `isFinished(req)` when data buffered
+
+2.2.0 / 2014-12-22
+==================
+
+  * Add message object to callback arguments
+
+2.1.1 / 2014-10-22
+==================
+
+  * Fix handling of pipelined requests
+
+2.1.0 / 2014-08-16
+==================
+
+  * Check if `socket` is detached
+  * Return `undefined` for `isFinished` if state unknown
+
+2.0.0 / 2014-08-16
+==================
+
+  * Add `isFinished` function
+  * Move to `jshttp` organization
+  * Remove support for plain socket argument
+  * Rename to `on-finished`
+  * Support both `req` and `res` as arguments
+  * deps: ee-first@1.0.5
+
+1.2.2 / 2014-06-10
+==================
+
+  * Reduce listeners added to emitters
+    - avoids "event emitter leak" warnings when used multiple times on same request
+
+1.2.1 / 2014-06-08
+==================
+
+  * Fix returned value when already finished
+
+1.2.0 / 2014-06-05
+==================
+
+  * Call callback when called on already-finished socket
+
+1.1.4 / 2014-05-27
+==================
+
+  * Support node.js 0.8
+
+1.1.3 / 2014-04-30
+==================
+
+  * Make sure errors passed as instanceof `Error`
+
+1.1.2 / 2014-04-18
+==================
+
+  * Default the `socket` to passed-in object
+
+1.1.1 / 2014-01-16
+==================
+
+  * Rename module to `finished`
+
+1.1.0 / 2013-12-25
+==================
+
+  * Call callback when called on already-errored socket
+
+1.0.1 / 2013-12-20
+==================
+
+  * Actually pass the error to the callback
+
+1.0.0 / 2013-12-20
+==================
+
+  * Initial release
diff --git a/backend/node_modules/on-finished/LICENSE b/backend/node_modules/on-finished/LICENSE
new file mode 100644
index 0000000..5931fd2
--- /dev/null
+++ b/backend/node_modules/on-finished/LICENSE
@@ -0,0 +1,23 @@
+(The MIT License)
+
+Copyright (c) 2013 Jonathan Ong <me@jongleberry.com>
+Copyright (c) 2014 Douglas Christopher Wilson <doug@somethingdoug.com>
+
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of this software and associated documentation files (the
+'Software'), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sublicense, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to
+the following conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
diff --git a/backend/node_modules/on-finished/README.md b/backend/node_modules/on-finished/README.md
new file mode 100644
index 0000000..8973cde
--- /dev/null
+++ b/backend/node_modules/on-finished/README.md
@@ -0,0 +1,162 @@
+# on-finished
+
+[![NPM Version][npm-version-image]][npm-url]
+[![NPM Downloads][npm-downloads-image]][npm-url]
+[![Node.js Version][node-image]][node-url]
+[![Build Status][ci-image]][ci-url]
+[![Coverage Status][coveralls-image]][coveralls-url]
+
+Execute a callback when a HTTP request closes, finishes, or errors.
+
+## Install
+
+This is a [Node.js](https://nodejs.org/en/) module available through the
+[npm registry](https://www.npmjs.com/). Installation is done using the
+[`npm install` command](https://docs.npmjs.com/getting-started/installing-npm-packages-locally):
+
+```sh
+$ npm install on-finished
+```
+
+## API
+
+```js
+var onFinished = require('on-finished')
+```
+
+### onFinished(res, listener)
+
+Attach a listener to listen for the response to finish. The listener will
+be invoked only once when the response finished. If the response finished
+to an error, the first argument will contain the error. If the response
+has already finished, the listener will be invoked.
+
+Listening to the end of a response would be used to close things associated
+with the response, like open files.
+
+Listener is invoked as `listener(err, res)`.
+
+<!-- eslint-disable handle-callback-err -->
+
+```js
+onFinished(res, function (err, res) {
+  // clean up open fds, etc.
+  // err contains the error if request error'd
+})
+```
+
+### onFinished(req, listener)
+
+Attach a listener to listen for the request to finish. The listener will
+be invoked only once when the request finished. If the request finished
+to an error, the first argument will contain the error. If the request
+has already finished, the listener will be invoked.
+
+Listening to the end of a request would be used to know when to continue
+after reading the data.
+
+Listener is invoked as `listener(err, req)`.
+
+<!-- eslint-disable handle-callback-err -->
+
+```js
+var data = ''
+
+req.setEncoding('utf8')
+req.on('data', function (str) {
+  data += str
+})
+
+onFinished(req, function (err, req) {
+  // data is read unless there is err
+})
+```
+
+### onFinished.isFinished(res)
+
+Determine if `res` is already finished. This would be useful to check and
+not even start certain operations if the response has already finished.
+
+### onFinished.isFinished(req)
+
+Determine if `req` is already finished. This would be useful to check and
+not even start certain operations if the request has already finished.
+
+## Special Node.js requests
+
+### HTTP CONNECT method
+
+The meaning of the `CONNECT` method from RFC 7231, section 4.3.6:
+
+> The CONNECT method requests that the recipient establish a tunnel to
+> the destination origin server identified by the request-target and,
+> if successful, thereafter restrict its behavior to blind forwarding
+> of packets, in both directions, until the tunnel is closed.  Tunnels
+> are commonly used to create an end-to-end virtual connection, through
+> one or more proxies, which can then be secured using TLS (Transport
+> Layer Security, [RFC5246]).
+
+In Node.js, these request objects come from the `'connect'` event on
+the HTTP server.
+
+When this module is used on a HTTP `CONNECT` request, the request is
+considered "finished" immediately, **due to limitations in the Node.js
+interface**. This means if the `CONNECT` request contains a request entity,
+the request will be considered "finished" even before it has been read.
+
+There is no such thing as a response object to a `CONNECT` request in
+Node.js, so there is no support for one.
+
+### HTTP Upgrade request
+
+The meaning of the `Upgrade` header from RFC 7230, section 6.1:
+
+> The "Upgrade" header field is intended to provide a simple mechanism
+> for transitioning from HTTP/1.1 to some other protocol on the same
+> connection.
+
+In Node.js, these request objects come from the `'upgrade'` event on
+the HTTP server.
+
+When this module is used on a HTTP request with an `Upgrade` header, the
+request is considered "finished" immediately, **due to limitations in the
+Node.js interface**. This means if the `Upgrade` request contains a request
+entity, the request will be considered "finished" even before it has been
+read.
+
+There is no such thing as a response object to a `Upgrade` request in
+Node.js, so there is no support for one.
+
+## Example
+
+The following code ensures that file descriptors are always closed
+once the response finishes.
+
+```js
+var destroy = require('destroy')
+var fs = require('fs')
+var http = require('http')
+var onFinished = require('on-finished')
+
+http.createServer(function onRequest (req, res) {
+  var stream = fs.createReadStream('package.json')
+  stream.pipe(res)
+  onFinished(res, function () {
+    destroy(stream)
+  })
+})
+```
+
+## License
+
+[MIT](LICENSE)
+
+[ci-image]: https://badgen.net/github/checks/jshttp/on-finished/master?label=ci
+[ci-url]: https://github.com/jshttp/on-finished/actions/workflows/ci.yml
+[coveralls-image]: https://badgen.net/coveralls/c/github/jshttp/on-finished/master
+[coveralls-url]: https://coveralls.io/r/jshttp/on-finished?branch=master
+[node-image]: https://badgen.net/npm/node/on-finished
+[node-url]: https://nodejs.org/en/download
+[npm-downloads-image]: https://badgen.net/npm/dm/on-finished
+[npm-url]: https://npmjs.org/package/on-finished
+[npm-version-image]: https://badgen.net/npm/v/on-finished
diff --git a/backend/node_modules/on-finished/index.js b/backend/node_modules/on-finished/index.js
new file mode 100644
index 0000000..e68df7b
--- /dev/null
+++ b/backend/node_modules/on-finished/index.js
@@ -0,0 +1,234 @@
+/*!
+ * on-finished
+ * Copyright(c) 2013 Jonathan Ong
+ * Copyright(c) 2014 Douglas Christopher Wilson
+ * MIT Licensed
+ */
+
+'use strict'
+
+/**
+ * Module exports.
+ * @public
+ */
+
+module.exports = onFinished
+module.exports.isFinished = isFinished
+
+/**
+ * Module dependencies.
+ * @private
+ */
+
+var asyncHooks = tryRequireAsyncHooks()
+var first = require('ee-first')
+
+/**
+ * Variables.
+ * @private
+ */
+
+/* istanbul ignore next */
+var defer = typeof setImmediate === 'function'
+  ? setImmediate
+  : function (fn) { process.nextTick(fn.bind.apply(fn, arguments)) }
+
+/**
+ * Invoke callback when the response has finished, useful for
+ * cleaning up resources afterwards.
+ *
+ * @param {object} msg
+ * @param {function} listener
+ * @return {object}
+ * @public
+ */
+
+function onFinished (msg, listener) {
+  if (isFinished(msg) !== false) {
+    defer(listener, null, msg)
+    return msg
+  }
+
+  // attach the listener to the message
+  attachListener(msg, wrap(listener))
+
+  return msg
+}
+
+/**
+ * Determine if message is already finished.
+ *
+ * @param {object} msg
+ * @return {boolean}
+ * @public
+ */
+
+function isFinished (msg) {
+  var socket = msg.socket
+
+  if (typeof msg.finished === 'boolean') {
+    // OutgoingMessage
+    return Boolean(msg.finished || (socket && !socket.writable))
+  }
+
+  if (typeof msg.complete === 'boolean') {
+    // IncomingMessage
+    return Boolean(msg.upgrade || !socket || !socket.readable || (msg.complete && !msg.readable))
+  }
+
+  // don't know
+  return undefined
+}
+
+/**
+ * Attach a finished listener to the message.
+ *
+ * @param {object} msg
+ * @param {function} callback
+ * @private
+ */
+
+function attachFinishedListener (msg, callback) {
+  var eeMsg
+  var eeSocket
+  var finished = false
+
+  function onFinish (error) {
+    eeMsg.cancel()
+    eeSocket.cancel()
+
+    finished = true
+    callback(error)
+  }
+
+  // finished on first message event
+  eeMsg = eeSocket = first([[msg, 'end', 'finish']], onFinish)
+
+  function onSocket (socket) {
+    // remove listener
+    msg.removeListener('socket', onSocket)
+
+    if (finished) return
+    if (eeMsg !== eeSocket) return
+
+    // finished on first socket event
+    eeSocket = first([[socket, 'error', 'close']], onFinish)
+  }
+
+  if (msg.socket) {
+    // socket already assigned
+    onSocket(msg.socket)
+    return
+  }
+
+  // wait for socket to be assigned
+  msg.on('socket', onSocket)
+
+  if (msg.socket === undefined) {
+    // istanbul ignore next: node.js 0.8 patch
+    patchAssignSocket(msg, onSocket)
+  }
+}
+
+/**
+ * Attach the listener to the message.
+ *
+ * @param {object} msg
+ * @return {function}
+ * @private
+ */
+
+function attachListener (msg, listener) {
+  var attached = msg.__onFinished
+
+  // create a private single listener with queue
+  if (!attached || !attached.queue) {
+    attached = msg.__onFinished = createListener(msg)
+    attachFinishedListener(msg, attached)
+  }
+
+  attached.queue.push(listener)
+}
+
+/**
+ * Create listener on message.
+ *
+ * @param {object} msg
+ * @return {function}
+ * @private
+ */
+
+function createListener (msg) {
+  function listener (err) {
+    if (msg.__onFinished === listener) msg.__onFinished = null
+    if (!listener.queue) return
+
+    var queue = listener.queue
+    listener.queue = null
+
+    for (var i = 0; i < queue.length; i++) {
+      queue[i](err, msg)
+    }
+  }
+
+  listener.queue = []
+
+  return listener
+}
+
+/**
+ * Patch ServerResponse.prototype.assignSocket for node.js 0.8.
+ *
+ * @param {ServerResponse} res
+ * @param {function} callback
+ * @private
+ */
+
+// istanbul ignore next: node.js 0.8 patch
+function patchAssignSocket (res, callback) {
+  var assignSocket = res.assignSocket
+
+  if (typeof assignSocket !== 'function') return
+
+  // res.on('socket', callback) is broken in 0.8
+  res.assignSocket = function _assignSocket (socket) {
+    assignSocket.call(this, socket)
+    callback(socket)
+  }
+}
+
+/**
+ * Try to require async_hooks
+ * @private
+ */
+
+function tryRequireAsyncHooks () {
+  try {
+    return require('async_hooks')
+  } catch (e) {
+    return {}
+  }
+}
+
+/**
+ * Wrap function with async resource, if possible.
+ * AsyncResource.bind static method backported.
+ * @private
+ */
+
+function wrap (fn) {
+  var res
+
+  // create anonymous resource
+  if (asyncHooks.AsyncResource) {
+    res = new asyncHooks.AsyncResource(fn.name || 'bound-anonymous-fn')
+  }
+
+  // incompatible node.js
+  if (!res || !res.runInAsyncScope) {
+    return fn
+  }
+
+  // return bound function
+  return res.runInAsyncScope.bind(res, fn, null)
+}
diff --git a/backend/node_modules/on-finished/package.json b/backend/node_modules/on-finished/package.json
new file mode 100644
index 0000000..644cd81
--- /dev/null
+++ b/backend/node_modules/on-finished/package.json
@@ -0,0 +1,39 @@
+{
+  "name": "on-finished",
+  "description": "Execute a callback when a request closes, finishes, or errors",
+  "version": "2.4.1",
+  "contributors": [
+    "Douglas Christopher Wilson <doug@somethingdoug.com>",
+    "Jonathan Ong <me@jongleberry.com> (http://jongleberry.com)"
+  ],
+  "license": "MIT",
+  "repository": "jshttp/on-finished",
+  "dependencies": {
+    "ee-first": "1.1.1"
+  },
+  "devDependencies": {
+    "eslint": "7.32.0",
+    "eslint-config-standard": "14.1.1",
+    "eslint-plugin-import": "2.25.4",
+    "eslint-plugin-markdown": "2.2.1",
+    "eslint-plugin-node": "11.1.0",
+    "eslint-plugin-promise": "5.2.0",
+    "eslint-plugin-standard": "4.1.0",
+    "mocha": "9.2.1",
+    "nyc": "15.1.0"
+  },
+  "engines": {
+    "node": ">= 0.8"
+  },
+  "files": [
+    "HISTORY.md",
+    "LICENSE",
+    "index.js"
+  ],
+  "scripts": {
+    "lint": "eslint .",
+    "test": "mocha --reporter spec --bail --check-leaks test/",
+    "test-ci": "nyc --reporter=lcovonly --reporter=text npm test",
+    "test-cov": "nyc --reporter=html --reporter=text npm test"
+  }
+}
diff --git a/backend/node_modules/once/LICENSE b/backend/node_modules/once/LICENSE
new file mode 100644
index 0000000..19129e3
--- /dev/null
+++ b/backend/node_modules/once/LICENSE
@@ -0,0 +1,15 @@
+The ISC License
+
+Copyright (c) Isaac Z. Schlueter and Contributors
+
+Permission to use, copy, modify, and/or distribute this software for any
+purpose with or without fee is hereby granted, provided that the above
+copyright notice and this permission notice appear in all copies.
+
+THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR
+IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
diff --git a/backend/node_modules/once/README.md b/backend/node_modules/once/README.md
new file mode 100644
index 0000000..1f1ffca
--- /dev/null
+++ b/backend/node_modules/once/README.md
@@ -0,0 +1,79 @@
+# once
+
+Only call a function once.
+
+## usage
+
+```javascript
+var once = require('once')
+
+function load (file, cb) {
+  cb = once(cb)
+  loader.load('file')
+  loader.once('load', cb)
+  loader.once('error', cb)
+}
+```
+
+Or add to the Function.prototype in a responsible way:
+
+```javascript
+// only has to be done once
+require('once').proto()
+
+function load (file, cb) {
+  cb = cb.once()
+  loader.load('file')
+  loader.once('load', cb)
+  loader.once('error', cb)
+}
+```
+
+Ironically, the prototype feature makes this module twice as
+complicated as necessary.
+
+To check whether you function has been called, use `fn.called`. Once the
+function is called for the first time the return value of the original
+function is saved in `fn.value` and subsequent calls will continue to
+return this value.
+
+```javascript
+var once = require('once')
+
+function load (cb) {
+  cb = once(cb)
+  var stream = createStream()
+  stream.once('data', cb)
+  stream.once('end', function () {
+    if (!cb.called) cb(new Error('not found'))
+  })
+}
+```
+
+## `once.strict(func)`
+
+Throw an error if the function is called twice.
+
+Some functions are expected to be called only once. Using `once` for them would
+potentially hide logical errors.
+
+In the example below, the `greet` function has to call the callback only once:
+
+```javascript
+function greet (name, cb) {
+  // return is missing from the if statement
+  // when no name is passed, the callback is called twice
+  if (!name) cb('Hello anonymous')
+  cb('Hello ' + name)
+}
+
+function log (msg) {
+  console.log(msg)
+}
+
+// this will print 'Hello anonymous' but the logical error will be missed
+greet(null, once(msg))
+
+// once.strict will print 'Hello anonymous' and throw an error when the callback will be called the second time
+greet(null, once.strict(msg))
+```
diff --git a/backend/node_modules/once/once.js b/backend/node_modules/once/once.js
new file mode 100644
index 0000000..2354067
--- /dev/null
+++ b/backend/node_modules/once/once.js
@@ -0,0 +1,42 @@
+var wrappy = require('wrappy')
+module.exports = wrappy(once)
+module.exports.strict = wrappy(onceStrict)
+
+once.proto = once(function () {
+  Object.defineProperty(Function.prototype, 'once', {
+    value: function () {
+      return once(this)
+    },
+    configurable: true
+  })
+
+  Object.defineProperty(Function.prototype, 'onceStrict', {
+    value: function () {
+      return onceStrict(this)
+    },
+    configurable: true
+  })
+})
+
+function once (fn) {
+  var f = function () {
+    if (f.called) return f.value
+    f.called = true
+    return f.value = fn.apply(this, arguments)
+  }
+  f.called = false
+  return f
+}
+
+function onceStrict (fn) {
+  var f = function () {
+    if (f.called)
+      throw new Error(f.onceError)
+    f.called = true
+    return f.value = fn.apply(this, arguments)
+  }
+  var name = fn.name || 'Function wrapped with `once`'
+  f.onceError = name + " shouldn't be called more than once"
+  f.called = false
+  return f
+}
diff --git a/backend/node_modules/once/package.json b/backend/node_modules/once/package.json
new file mode 100644
index 0000000..16815b2
--- /dev/null
+++ b/backend/node_modules/once/package.json
@@ -0,0 +1,33 @@
+{
+  "name": "once",
+  "version": "1.4.0",
+  "description": "Run a function exactly one time",
+  "main": "once.js",
+  "directories": {
+    "test": "test"
+  },
+  "dependencies": {
+    "wrappy": "1"
+  },
+  "devDependencies": {
+    "tap": "^7.0.1"
+  },
+  "scripts": {
+    "test": "tap test/*.js"
+  },
+  "files": [
+    "once.js"
+  ],
+  "repository": {
+    "type": "git",
+    "url": "git://github.com/isaacs/once"
+  },
+  "keywords": [
+    "once",
+    "function",
+    "one",
+    "single"
+  ],
+  "author": "Isaac Z. Schlueter <i@izs.me> (http://blog.izs.me/)",
+  "license": "ISC"
+}
diff --git a/backend/node_modules/parseurl/HISTORY.md b/backend/node_modules/parseurl/HISTORY.md
new file mode 100644
index 0000000..8e40954
--- /dev/null
+++ b/backend/node_modules/parseurl/HISTORY.md
@@ -0,0 +1,58 @@
+1.3.3 / 2019-04-15
+==================
+
+  * Fix Node.js 0.8 return value inconsistencies
+
+1.3.2 / 2017-09-09
+==================
+
+  * perf: reduce overhead for full URLs
+  * perf: unroll the "fast-path" `RegExp`
+
+1.3.1 / 2016-01-17
+==================
+
+  * perf: enable strict mode
+
+1.3.0 / 2014-08-09
+==================
+
+  * Add `parseurl.original` for parsing `req.originalUrl` with fallback
+  * Return `undefined` if `req.url` is `undefined`
+
+1.2.0 / 2014-07-21
+==================
+
+  * Cache URLs based on original value
+  * Remove no-longer-needed URL mis-parse work-around
+  * Simplify the "fast-path" `RegExp`
+
+1.1.3 / 2014-07-08
+==================
+
+  * Fix typo
+
+1.1.2 / 2014-07-08
+==================
+
+  * Seriously fix Node.js 0.8 compatibility
+
+1.1.1 / 2014-07-08
+==================
+
+  * Fix Node.js 0.8 compatibility
+
+1.1.0 / 2014-07-08
+==================
+
+  * Incorporate URL href-only parse fast-path
+
+1.0.1 / 2014-03-08
+==================
+
+  * Add missing `require`
+
+1.0.0 / 2014-03-08
+==================
+
+  * Genesis from `connect`
diff --git a/backend/node_modules/parseurl/LICENSE b/backend/node_modules/parseurl/LICENSE
new file mode 100644
index 0000000..27653d3
--- /dev/null
+++ b/backend/node_modules/parseurl/LICENSE
@@ -0,0 +1,24 @@
+
+(The MIT License)
+
+Copyright (c) 2014 Jonathan Ong <me@jongleberry.com>
+Copyright (c) 2014-2017 Douglas Christopher Wilson <doug@somethingdoug.com>
+
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of this software and associated documentation files (the
+'Software'), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sublicense, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to
+the following conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
diff --git a/backend/node_modules/parseurl/README.md b/backend/node_modules/parseurl/README.md
new file mode 100644
index 0000000..443e716
--- /dev/null
+++ b/backend/node_modules/parseurl/README.md
@@ -0,0 +1,133 @@
+# parseurl
+
+[![NPM Version][npm-version-image]][npm-url]
+[![NPM Downloads][npm-downloads-image]][npm-url]
+[![Node.js Version][node-image]][node-url]
+[![Build Status][travis-image]][travis-url]
+[![Test Coverage][coveralls-image]][coveralls-url]
+
+Parse a URL with memoization.
+
+## Install
+
+This is a [Node.js](https://nodejs.org/en/) module available through the
+[npm registry](https://www.npmjs.com/). Installation is done using the
+[`npm install` command](https://docs.npmjs.com/getting-started/installing-npm-packages-locally):
+
+```sh
+$ npm install parseurl
+```
+
+## API
+
+```js
+var parseurl = require('parseurl')
+```
+
+### parseurl(req)
+
+Parse the URL of the given request object (looks at the `req.url` property)
+and return the result. The result is the same as `url.parse` in Node.js core.
+Calling this function multiple times on the same `req` where `req.url` does
+not change will return a cached parsed object, rather than parsing again.
+
+### parseurl.original(req)
+
+Parse the original URL of the given request object and return the result.
+This works by trying to parse `req.originalUrl` if it is a string, otherwise
+parses `req.url`. The result is the same as `url.parse` in Node.js core.
+Calling this function multiple times on the same `req` where `req.originalUrl`
+does not change will return a cached parsed object, rather than parsing again.
+
+## Benchmark
+
+```bash
+$ npm run-script bench
+
+> parseurl@1.3.3 bench nodejs-parseurl
+> node benchmark/index.js
+
+  http_parser@2.8.0
+  node@10.6.0
+  v8@6.7.288.46-node.13
+  uv@1.21.0
+  zlib@1.2.11
+  ares@1.14.0
+  modules@64
+  nghttp2@1.32.0
+  napi@3
+  openssl@1.1.0h
+  icu@61.1
+  unicode@10.0
+  cldr@33.0
+  tz@2018c
+
+> node benchmark/fullurl.js
+
+  Parsing URL "http://localhost:8888/foo/bar?user=tj&pet=fluffy"
+
+  4 tests completed.
+
+  fasturl            x 2,207,842 ops/sec ±3.76% (184 runs sampled)
+  nativeurl - legacy x   507,180 ops/sec ±0.82% (191 runs sampled)
+  nativeurl - whatwg x   290,044 ops/sec ±1.96% (189 runs sampled)
+  parseurl           x   488,907 ops/sec ±2.13% (192 runs sampled)
+
+> node benchmark/pathquery.js
+
+  Parsing URL "/foo/bar?user=tj&pet=fluffy"
+
+  4 tests completed.
+
+  fasturl            x 3,812,564 ops/sec ±3.15% (188 runs sampled)
+  nativeurl - legacy x 2,651,631 ops/sec ±1.68% (189 runs sampled)
+  nativeurl - whatwg x   161,837 ops/sec ±2.26% (189 runs sampled)
+  parseurl           x 4,166,338 ops/sec ±2.23% (184 runs sampled)
+
+> node benchmark/samerequest.js
+
+  Parsing URL "/foo/bar?user=tj&pet=fluffy" on same request object
+
+  4 tests completed.
+
+  fasturl            x  3,821,651 ops/sec ±2.42% (185 runs sampled)
+  nativeurl - legacy x  2,651,162 ops/sec ±1.90% (187 runs sampled)
+  nativeurl - whatwg x    175,166 ops/sec ±1.44% (188 runs sampled)
+  parseurl           x 14,912,606 ops/sec ±3.59% (183 runs sampled)
+
+> node benchmark/simplepath.js
+
+  Parsing URL "/foo/bar"
+
+  4 tests completed.
+
+  fasturl            x 12,421,765 ops/sec ±2.04% (191 runs sampled)
+  nativeurl - legacy x  7,546,036 ops/sec ±1.41% (188 runs sampled)
+  nativeurl - whatwg x    198,843 ops/sec ±1.83% (189 runs sampled)
+  parseurl           x 24,244,006 ops/sec ±0.51% (194 runs sampled)
+
+> node benchmark/slash.js
+
+  Parsing URL "/"
+
+  4 tests completed.
+
+  fasturl            x 17,159,456 ops/sec ±3.25% (188 runs sampled)
+  nativeurl - legacy x 11,635,097 ops/sec ±3.79% (184 runs sampled)
+  nativeurl - whatwg x    240,693 ops/sec ±0.83% (189 runs sampled)
+  parseurl           x 42,279,067 ops/sec ±0.55% (190 runs sampled)
+```
+
+## License
+
+  [MIT](LICENSE)
+
+[coveralls-image]: https://badgen.net/coveralls/c/github/pillarjs/parseurl/master
+[coveralls-url]: https://coveralls.io/r/pillarjs/parseurl?branch=master
+[node-image]: https://badgen.net/npm/node/parseurl
+[node-url]: https://nodejs.org/en/download
+[npm-downloads-image]: https://badgen.net/npm/dm/parseurl
+[npm-url]: https://npmjs.org/package/parseurl
+[npm-version-image]: https://badgen.net/npm/v/parseurl
+[travis-image]: https://badgen.net/travis/pillarjs/parseurl/master
+[travis-url]: https://travis-ci.org/pillarjs/parseurl
diff --git a/backend/node_modules/parseurl/index.js b/backend/node_modules/parseurl/index.js
new file mode 100644
index 0000000..ece7223
--- /dev/null
+++ b/backend/node_modules/parseurl/index.js
@@ -0,0 +1,158 @@
+/*!
+ * parseurl
+ * Copyright(c) 2014 Jonathan Ong
+ * Copyright(c) 2014-2017 Douglas Christopher Wilson
+ * MIT Licensed
+ */
+
+'use strict'
+
+/**
+ * Module dependencies.
+ * @private
+ */
+
+var url = require('url')
+var parse = url.parse
+var Url = url.Url
+
+/**
+ * Module exports.
+ * @public
+ */
+
+module.exports = parseurl
+module.exports.original = originalurl
+
+/**
+ * Parse the `req` url with memoization.
+ *
+ * @param {ServerRequest} req
+ * @return {Object}
+ * @public
+ */
+
+function parseurl (req) {
+  var url = req.url
+
+  if (url === undefined) {
+    // URL is undefined
+    return undefined
+  }
+
+  var parsed = req._parsedUrl
+
+  if (fresh(url, parsed)) {
+    // Return cached URL parse
+    return parsed
+  }
+
+  // Parse the URL
+  parsed = fastparse(url)
+  parsed._raw = url
+
+  return (req._parsedUrl = parsed)
+};
+
+/**
+ * Parse the `req` original url with fallback and memoization.
+ *
+ * @param {ServerRequest} req
+ * @return {Object}
+ * @public
+ */
+
+function originalurl (req) {
+  var url = req.originalUrl
+
+  if (typeof url !== 'string') {
+    // Fallback
+    return parseurl(req)
+  }
+
+  var parsed = req._parsedOriginalUrl
+
+  if (fresh(url, parsed)) {
+    // Return cached URL parse
+    return parsed
+  }
+
+  // Parse the URL
+  parsed = fastparse(url)
+  parsed._raw = url
+
+  return (req._parsedOriginalUrl = parsed)
+};
+
+/**
+ * Parse the `str` url with fast-path short-cut.
+ *
+ * @param {string} str
+ * @return {Object}
+ * @private
+ */
+
+function fastparse (str) {
+  if (typeof str !== 'string' || str.charCodeAt(0) !== 0x2f /* / */) {
+    return parse(str)
+  }
+
+  var pathname = str
+  var query = null
+  var search = null
+
+  // This takes the regexp from https://github.com/joyent/node/pull/7878
+  // Which is /^(\/[^?#\s]*)(\?[^#\s]*)?$/
+  // And unrolls it into a for loop
+  for (var i = 1; i < str.length; i++) {
+    switch (str.charCodeAt(i)) {
+      case 0x3f: /* ?  */
+        if (search === null) {
+          pathname = str.substring(0, i)
+          query = str.substring(i + 1)
+          search = str.substring(i)
+        }
+        break
+      case 0x09: /* \t */
+      case 0x0a: /* \n */
+      case 0x0c: /* \f */
+      case 0x0d: /* \r */
+      case 0x20: /*    */
+      case 0x23: /* #  */
+      case 0xa0:
+      case 0xfeff:
+        return parse(str)
+    }
+  }
+
+  var url = Url !== undefined
+    ? new Url()
+    : {}
+
+  url.path = str
+  url.href = str
+  url.pathname = pathname
+
+  if (search !== null) {
+    url.query = query
+    url.search = search
+  }
+
+  return url
+}
+
+/**
+ * Determine if parsed is still fresh for url.
+ *
+ * @param {string} url
+ * @param {object} parsedUrl
+ * @return {boolean}
+ * @private
+ */
+
+function fresh (url, parsedUrl) {
+  return typeof parsedUrl === 'object' &&
+    parsedUrl !== null &&
+    (Url === undefined || parsedUrl instanceof Url) &&
+    parsedUrl._raw === url
+}
diff --git a/backend/node_modules/parseurl/package.json b/backend/node_modules/parseurl/package.json
new file mode 100644
index 0000000..6b443ca
--- /dev/null
+++ b/backend/node_modules/parseurl/package.json
@@ -0,0 +1,40 @@
+{
+  "name": "parseurl",
+  "description": "parse a url with memoization",
+  "version": "1.3.3",
+  "contributors": [
+    "Douglas Christopher Wilson <doug@somethingdoug.com>",
+    "Jonathan Ong <me@jongleberry.com> (http://jongleberry.com)"
+  ],
+  "repository": "pillarjs/parseurl",
+  "license": "MIT",
+  "devDependencies": {
+    "beautify-benchmark": "0.2.4",
+    "benchmark": "2.1.4",
+    "eslint": "5.16.0",
+    "eslint-config-standard": "12.0.0",
+    "eslint-plugin-import": "2.17.1",
+    "eslint-plugin-node": "7.0.1",
+    "eslint-plugin-promise": "4.1.1",
+    "eslint-plugin-standard": "4.0.0",
+    "fast-url-parser": "1.1.3",
+    "istanbul": "0.4.5",
+    "mocha": "6.1.3"
+  },
+  "files": [
+    "LICENSE",
+    "HISTORY.md",
+    "README.md",
+    "index.js"
+  ],
+  "engines": {
+    "node": ">= 0.8"
+  },
+  "scripts": {
+    "bench": "node benchmark/index.js",
+    "lint": "eslint .",
+    "test": "mocha --check-leaks --bail --reporter spec test/",
+    "test-cov": "istanbul cover node_modules/mocha/bin/_mocha -- --check-leaks --reporter dot test/",
+    "test-travis": "istanbul cover node_modules/mocha/bin/_mocha --report lcovonly -- --check-leaks --reporter spec test/"
+  }
+}
diff --git a/backend/node_modules/path-to-regexp/LICENSE b/backend/node_modules/path-to-regexp/LICENSE
new file mode 100644
index 0000000..983fbe8
--- /dev/null
+++ b/backend/node_modules/path-to-regexp/LICENSE
@@ -0,0 +1,21 @@
+The MIT License (MIT)
+
+Copyright (c) 2014 Blake Embrey (hello@blakeembrey.com)
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
diff --git a/backend/node_modules/path-to-regexp/Readme.md b/backend/node_modules/path-to-regexp/Readme.md
new file mode 100644
index 0000000..f5df40a
--- /dev/null
+++ b/backend/node_modules/path-to-regexp/Readme.md
@@ -0,0 +1,224 @@
+# Path-to-RegExp
+
+> Turn a path string such as `/user/:name` into a regular expression.
+
+[![NPM version][npm-image]][npm-url]
+[![NPM downloads][downloads-image]][downloads-url]
+[![Build status][build-image]][build-url]
+[![Build coverage][coverage-image]][coverage-url]
+[![License][license-image]][license-url]
+
+## Installation
+
+```
+npm install path-to-regexp --save
+```
+
+## Usage
+
+```js
+const {
+  match,
+  pathToRegexp,
+  compile,
+  parse,
+  stringify,
+} = require("path-to-regexp");
+```
+
+### Parameters
+
+Parameters match arbitrary strings in a path by matching up to the end of the segment, or up to any proceeding tokens. They are defined by prefixing a colon to the parameter name (`:foo`). Parameter names can use any valid JavaScript identifier, or be double quoted to use other characters (`:"param-name"`).
+
+```js
+const fn = match("/:foo/:bar");
+
+fn("/test/route");
+//=> { path: '/test/route', params: { foo: 'test', bar: 'route' } }
+```
+
+### Wildcard
+
+Wildcard parameters match one or more characters across multiple segments. They are defined the same way as regular parameters, but are prefixed with an asterisk (`*foo`).
+
+```js
+const fn = match("/*splat");
+
+fn("/bar/baz");
+//=> { path: '/bar/baz', params: { splat: [ 'bar', 'baz' ] } }
+```
+
+### Optional
+
+Braces can be used to define parts of the path that are optional.
+
+```js
+const fn = match("/users{/:id}/delete");
+
+fn("/users/delete");
+//=> { path: '/users/delete', params: {} }
+
+fn("/users/123/delete");
+//=> { path: '/users/123/delete', params: { id: '123' } }
+```
+
+## Match
+
+The `match` function returns a function for matching strings against a path:
+
+- **path** String, `TokenData` object, or array of strings and `TokenData` objects.
+- **options** _(optional)_ (Extends [pathToRegexp](#pathToRegexp) options)
+  - **decode** Function for decoding strings to params, or `false` to disable all processing. (default: `decodeURIComponent`)
+
+```js
+const fn = match("/foo/:bar");
+```
+
+**Please note:** `path-to-regexp` is intended for ordered data (e.g. paths, hosts). It can not handle arbitrarily ordered data (e.g. query strings, URL fragments, JSON, etc).
+
+## PathToRegexp
+
+The `pathToRegexp` function returns the `regexp` for matching strings against paths, and an array of `keys` for understanding the `RegExp#exec` matches.
+
+- **path** String, `TokenData` object, or array of strings and `TokenData` objects.
+- **options** _(optional)_ (See [parse](#parse) for more options)
+  - **sensitive** Regexp will be case sensitive. (default: `false`)
+  - **end** Validate the match reaches the end of the string. (default: `true`)
+  - **delimiter** The default delimiter for segments, e.g. `[^/]` for `:named` parameters. (default: `'/'`)
+  - **trailing** Allows optional trailing delimiter to match. (default: `true`)
+
+```js
+const { regexp, keys } = pathToRegexp("/foo/:bar");
+
+regexp.exec("/foo/123"); //=> ["/foo/123", "123"]
+```
+
+## Compile ("Reverse" Path-To-RegExp)
+
+The `compile` function will return a function for transforming parameters into a valid path:
+
+- **path** A string or `TokenData` object.
+- **options** (See [parse](#parse) for more options)
+  - **delimiter** The default delimiter for segments, e.g. `[^/]` for `:named` parameters. (default: `'/'`)
+  - **encode** Function for encoding input strings for output into the path, or `false` to disable entirely. (default: `encodeURIComponent`)
+
+```js
+const toPath = compile("/user/:id");
+
+toPath({ id: "name" }); //=> "/user/name"
+toPath({ id: "café" }); //=> "/user/caf%C3%A9"
+
+const toPathRepeated = compile("/*segment");
+
+toPathRepeated({ segment: ["foo"] }); //=> "/foo"
+toPathRepeated({ segment: ["a", "b", "c"] }); //=> "/a/b/c"
+
+// When disabling `encode`, you need to make sure inputs are encoded correctly. No arrays are accepted.
+const toPathRaw = compile("/user/:id", { encode: false });
+
+toPathRaw({ id: "%3A%2F" }); //=> "/user/%3A%2F"
+```
+
+## Stringify
+
+Transform a `TokenData` object to a Path-to-RegExp string.
+
+- **data** A `TokenData` object.
+
+```js
+const data = {
+  tokens: [
+    { type: "text", value: "/" },
+    { type: "param", name: "foo" },
+  ],
+};
+
+const path = stringify(data); //=> "/:foo"
+```
+
+## Developers
+
+- If you are rewriting paths with match and compile, consider using `encode: false` and `decode: false` to keep raw paths passed around.
+- To ensure matches work on paths containing characters usually encoded, such as emoji, consider using [encodeurl](https://github.com/pillarjs/encodeurl) for `encodePath`.
+
+### Parse
+
+The `parse` function accepts a string and returns `TokenData`, which can be used with `match` and `compile`.
+
+- **path** A string.
+- **options** _(optional)_
+  - **encodePath** A function for encoding input strings. (default: `x => x`, recommended: [`encodeurl`](https://github.com/pillarjs/encodeurl))
+
+### Tokens
+
+`TokenData` has two properties:
+
+- **tokens** A sequence of tokens, currently of types `text`, `parameter`, `wildcard`, or `group`.
+- **originalPath** The original path used with `parse`, shown in error messages to assist debugging.
+
+### Custom path
+
+In some applications you may not be able to use the `path-to-regexp` syntax, but you still want to use this library for `match` and `compile`. For example:
+
+```js
+import { match } from "path-to-regexp";
+
+const tokens = [
+  { type: "text", value: "/" },
+  { type: "parameter", name: "foo" },
+];
+const originalPath = "/[foo]"; // To help debug error messages.
+const path = { tokens, originalPath };
+const fn = match(path);
+
+fn("/test"); //=> { path: '/test', index: 0, params: { foo: 'test' } }
+```
+
+## Errors
+
+An effort has been made to ensure ambiguous paths from previous releases throw an error. This means you might be seeing an error when things worked before.
+
+### Missing parameter name
+
+Parameter names must be provided after `:` or `*`, for example `/*path`. They can be valid JavaScript identifiers (e.g. `:myName`) or JSON strings (`:"my-name"`).
+
+### Unexpected `?` or `+`
+
+In past releases, `?`, `*`, and `+` were used to denote optional or repeating parameters. As an alternative, try these:
+
+- For optional (`?`), use braces: `/file{.:ext}`.
+- For one or more (`+`), use a wildcard: `/*path`.
+- For zero or more (`*`), use both: `/files{/*path}`.
+
+### Unexpected `(`, `)`, `[`, `]`, etc.
+
+Previous versions of Path-to-RegExp used these for RegExp features. This version no longer supports them so they've been reserved to avoid ambiguity. To match these characters literally, escape them with a backslash, e.g. `"\\("`.
+
+### Unterminated quote
+
+Parameter names can be wrapped in double quote characters, and this error means you forgot to close the quote character. For example, `:"foo`.
+
+### Express <= 4.x
+
+Path-To-RegExp breaks compatibility with Express <= `4.x` in the following ways:
+
+- The wildcard `*` must have a name and matches the behavior of parameters `:`.
+- The optional character `?` is no longer supported, use braces instead: `/:file{.:ext}`.
+- Regexp characters are not supported.
+- Some characters have been reserved to avoid confusion during upgrade (`()[]?+!`).
+- Parameter names now support valid JavaScript identifiers, or quoted like `:"this"`.
+
+## License
+
+MIT
+
+[npm-image]: https://img.shields.io/npm/v/path-to-regexp
+[npm-url]: https://npmjs.org/package/path-to-regexp
+[downloads-image]: https://img.shields.io/npm/dm/path-to-regexp
+[downloads-url]: https://npmjs.org/package/path-to-regexp
+[build-image]: https://img.shields.io/github/actions/workflow/status/pillarjs/path-to-regexp/ci.yml?branch=master
+[build-url]: https://github.com/pillarjs/path-to-regexp/actions/workflows/ci.yml?query=branch%3Amaster
+[coverage-image]: https://img.shields.io/codecov/c/gh/pillarjs/path-to-regexp
+[coverage-url]: https://codecov.io/gh/pillarjs/path-to-regexp
+[license-image]: http://img.shields.io/npm/l/path-to-regexp.svg?style=flat
+[license-url]: LICENSE.md
diff --git a/backend/node_modules/path-to-regexp/dist/index.d.ts b/backend/node_modules/path-to-regexp/dist/index.d.ts
new file mode 100644
index 0000000..b59dff0
--- /dev/null
+++ b/backend/node_modules/path-to-regexp/dist/index.d.ts
@@ -0,0 +1,144 @@
+/**
+ * Encode a string into another string.
+ */
+export type Encode = (value: string) => string;
+/**
+ * Decode a string into another string.
+ */
+export type Decode = (value: string) => string;
+export interface ParseOptions {
+    /**
+     * A function for encoding input strings.
+     */
+    encodePath?: Encode;
+}
+export interface PathToRegexpOptions {
+    /**
+     * Matches the path completely without trailing characters. (default: `true`)
+     */
+    end?: boolean;
+    /**
+     * Allows optional trailing delimiter to match. (default: `true`)
+     */
+    trailing?: boolean;
+    /**
+     * Match will be case sensitive. (default: `false`)
+     */
+    sensitive?: boolean;
+    /**
+     * The default delimiter for segments. (default: `'/'`)
+     */
+    delimiter?: string;
+}
+export interface MatchOptions extends PathToRegexpOptions {
+    /**
+     * Function for decoding strings for params, or `false` to disable entirely. (default: `decodeURIComponent`)
+     */
+    decode?: Decode | false;
+}
+export interface CompileOptions {
+    /**
+     * Function for encoding input strings for output into the path, or `false` to disable entirely. (default: `encodeURIComponent`)
+     */
+    encode?: Encode | false;
+    /**
+     * The default delimiter for segments. (default: `'/'`)
+     */
+    delimiter?: string;
+}
+/**
+ * Plain text.
+ */
+export interface Text {
+    type: "text";
+    value: string;
+}
+/**
+ * A parameter designed to match arbitrary text within a segment.
+ */
+export interface Parameter {
+    type: "param";
+    name: string;
+}
+/**
+ * A wildcard parameter designed to match multiple segments.
+ */
+export interface Wildcard {
+    type: "wildcard";
+    name: string;
+}
+/**
+ * A set of possible tokens to expand when matching.
+ */
+export interface Group {
+    type: "group";
+    tokens: Token[];
+}
+/**
+ * A token that corresponds with a regexp capture.
+ */
+export type Key = Parameter | Wildcard;
+/**
+ * A sequence of `path-to-regexp` keys that match capturing groups.
+ */
+export type Keys = Array<Key>;
+/**
+ * A sequence of path match characters.
+ */
+export type Token = Text | Parameter | Wildcard | Group;
+/**
+ * Tokenized path instance.
+ */
+export declare class TokenData {
+    readonly tokens: Token[];
+    readonly originalPath?: string | undefined;
+    constructor(tokens: Token[], originalPath?: string | undefined);
+}
+/**
+ * ParseError is thrown when there is an error processing the path.
+ */
+export declare class PathError extends TypeError {
+    readonly originalPath: string | undefined;
+    constructor(message: string, originalPath: string | undefined);
+}
+/**
+ * Parse a string for the raw tokens.
+ */
+export declare function parse(str: string, options?: ParseOptions): TokenData;
+/**
+ * Compile a string to a template function for the path.
+ */
+export declare function compile<P extends ParamData = ParamData>(path: Path, options?: CompileOptions & ParseOptions): (params?: P) => string;
+export type ParamData = Partial<Record<string, string | string[]>>;
+export type PathFunction<P extends ParamData> = (data?: P) => string;
+/**
+ * A match result contains data about the path match.
+ */
+export interface MatchResult<P extends ParamData> {
+    path: string;
+    params: P;
+}
+/**
+ * A match is either `false` (no match) or a match result.
+ */
+export type Match<P extends ParamData> = false | MatchResult<P>;
+/**
+ * The match function takes a string and returns whether it matched the path.
+ */
+export type MatchFunction<P extends ParamData> = (path: string) => Match<P>;
+/**
+ * Supported path types.
+ */
+export type Path = string | TokenData;
+/**
+ * Transform a path into a match function.
+ */
+export declare function match<P extends ParamData>(path: Path | Path[], options?: MatchOptions & ParseOptions): MatchFunction<P>;
+export declare function pathToRegexp(path: Path | Path[], options?: PathToRegexpOptions & ParseOptions): {
+    regexp: RegExp;
+    keys: Keys;
+};
+/**
+ * Stringify token data into a path string.
+ */
+export declare function stringify(data: TokenData): string;
diff --git a/backend/node_modules/path-to-regexp/dist/index.js b/backend/node_modules/path-to-regexp/dist/index.js
new file mode 100644
index 0000000..9331ae0
--- /dev/null
+++ b/backend/node_modules/path-to-regexp/dist/index.js
@@ -0,0 +1,409 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.PathError = exports.TokenData = void 0;
+exports.parse = parse;
+exports.compile = compile;
+exports.match = match;
+exports.pathToRegexp = pathToRegexp;
+exports.stringify = stringify;
+const DEFAULT_DELIMITER = "/";
+const NOOP_VALUE = (value) => value;
+const ID_START = /^[$_\p{ID_Start}]$/u;
+const ID_CONTINUE = /^[$\u200c\u200d\p{ID_Continue}]$/u;
+const SIMPLE_TOKENS = {
+    // Groups.
+    "{": "{",
+    "}": "}",
+    // Reserved.
+    "(": "(",
+    ")": ")",
+    "[": "[",
+    "]": "]",
+    "+": "+",
+    "?": "?",
+    "!": "!",
+};
+/**
+ * Escape text for stringify to path.
+ */
+function escapeText(str) {
+    return str.replace(/[{}()\[\]+?!:*\\]/g, "\\$&");
+}
+/**
+ * Escape a regular expression string.
+ */
+function escape(str) {
+    return str.replace(/[.+*?^${}()[\]|/\\]/g, "\\$&");
+}
+/**
+ * Tokenized path instance.
+ */
+class TokenData {
+    constructor(tokens, originalPath) {
+        this.tokens = tokens;
+        this.originalPath = originalPath;
+    }
+}
+exports.TokenData = TokenData;
+/**
+ * ParseError is thrown when there is an error processing the path.
+ */
+class PathError extends TypeError {
+    constructor(message, originalPath) {
+        let text = message;
+        if (originalPath)
+            text += `: ${originalPath}`;
+        text += `; visit https://git.new/pathToRegexpError for info`;
+        super(text);
+        this.originalPath = originalPath;
+    }
+}
+exports.PathError = PathError;
+/**
+ * Parse a string for the raw tokens.
+ */
+function parse(str, options = {}) {
+    const { encodePath = NOOP_VALUE } = options;
+    const chars = [...str];
+    const tokens = [];
+    let index = 0;
+    let pos = 0;
+    function name() {
+        let value = "";
+        if (ID_START.test(chars[index])) {
+            do {
+                value += chars[index++];
+            } while (ID_CONTINUE.test(chars[index]));
+        }
+        else if (chars[index] === '"') {
+            let quoteStart = index;
+            while (index++ < chars.length) {
+                if (chars[index] === '"') {
+                    index++;
+                    quoteStart = 0;
+                    break;
+                }
+                // Increment over escape characters.
+                if (chars[index] === "\\")
+                    index++;
+                value += chars[index];
+            }
+            if (quoteStart) {
+                throw new PathError(`Unterminated quote at index ${quoteStart}`, str);
+            }
+        }
+        if (!value) {
+            throw new PathError(`Missing parameter name at index ${index}`, str);
+        }
+        return value;
+    }
+    while (index < chars.length) {
+        const value = chars[index];
+        const type = SIMPLE_TOKENS[value];
+        if (type) {
+            tokens.push({ type, index: index++, value });
+        }
+        else if (value === "\\") {
+            tokens.push({ type: "escape", index: index++, value: chars[index++] });
+        }
+        else if (value === ":") {
+            tokens.push({ type: "param", index: index++, value: name() });
+        }
+        else if (value === "*") {
+            tokens.push({ type: "wildcard", index: index++, value: name() });
+        }
+        else {
+            tokens.push({ type: "char", index: index++, value });
+        }
+    }
+    tokens.push({ type: "end", index, value: "" });
+    function consumeUntil(endType) {
+        const output = [];
+        while (true) {
+            const token = tokens[pos++];
+            if (token.type === endType)
+                break;
+            if (token.type === "char" || token.type === "escape") {
+                let path = token.value;
+                let cur = tokens[pos];
+                while (cur.type === "char" || cur.type === "escape") {
+                    path += cur.value;
+                    cur = tokens[++pos];
+                }
+                output.push({
+                    type: "text",
+                    value: encodePath(path),
+                });
+                continue;
+            }
+            if (token.type === "param" || token.type === "wildcard") {
+                output.push({
+                    type: token.type,
+                    name: token.value,
+                });
+                continue;
+            }
+            if (token.type === "{") {
+                output.push({
+                    type: "group",
+                    tokens: consumeUntil("}"),
+                });
+                continue;
+            }
+            throw new PathError(`Unexpected ${token.type} at index ${token.index}, expected ${endType}`, str);
+        }
+        return output;
+    }
+    return new TokenData(consumeUntil("end"), str);
+}
+/**
+ * Compile a string to a template function for the path.
+ */
+function compile(path, options = {}) {
+    const { encode = encodeURIComponent, delimiter = DEFAULT_DELIMITER } = options;
+    const data = typeof path === "object" ? path : parse(path, options);
+    const fn = tokensToFunction(data.tokens, delimiter, encode);
+    return function path(params = {}) {
+        const [path, ...missing] = fn(params);
+        if (missing.length) {
+            throw new TypeError(`Missing parameters: ${missing.join(", ")}`);
+        }
+        return path;
+    };
+}
+function tokensToFunction(tokens, delimiter, encode) {
+    const encoders = tokens.map((token) => tokenToFunction(token, delimiter, encode));
+    return (data) => {
+        const result = [""];
+        for (const encoder of encoders) {
+            const [value, ...extras] = encoder(data);
+            result[0] += value;
+            result.push(...extras);
+        }
+        return result;
+    };
+}
+/**
+ * Convert a single token into a path building function.
+ */
+function tokenToFunction(token, delimiter, encode) {
+    if (token.type === "text")
+        return () => [token.value];
+    if (token.type === "group") {
+        const fn = tokensToFunction(token.tokens, delimiter, encode);
+        return (data) => {
+            const [value, ...missing] = fn(data);
+            if (!missing.length)
+                return [value];
+            return [""];
+        };
+    }
+    const encodeValue = encode || NOOP_VALUE;
+    if (token.type === "wildcard" && encode !== false) {
+        return (data) => {
+            const value = data[token.name];
+            if (value == null)
+                return ["", token.name];
+            if (!Array.isArray(value) || value.length === 0) {
+                throw new TypeError(`Expected "${token.name}" to be a non-empty array`);
+            }
+            return [
+                value
+                    .map((value, index) => {
+                    if (typeof value !== "string") {
+                        throw new TypeError(`Expected "${token.name}/${index}" to be a string`);
+                    }
+                    return encodeValue(value);
+                })
+                    .join(delimiter),
+            ];
+        };
+    }
+    return (data) => {
+        const value = data[token.name];
+        if (value == null)
+            return ["", token.name];
+        if (typeof value !== "string") {
+            throw new TypeError(`Expected "${token.name}" to be a string`);
+        }
+        return [encodeValue(value)];
+    };
+}
+/**
+ * Transform a path into a match function.
+ */
+function match(path, options = {}) {
+    const { decode = decodeURIComponent, delimiter = DEFAULT_DELIMITER } = options;
+    const { regexp, keys } = pathToRegexp(path, options);
+    const decoders = keys.map((key) => {
+        if (decode === false)
+            return NOOP_VALUE;
+        if (key.type === "param")
+            return decode;
+        return (value) => value.split(delimiter).map(decode);
+    });
+    return function match(input) {
+        const m = regexp.exec(input);
+        if (!m)
+            return false;
+        const path = m[0];
+        const params = Object.create(null);
+        for (let i = 1; i < m.length; i++) {
+            if (m[i] === undefined)
+                continue;
+            const key = keys[i - 1];
+            const decoder = decoders[i - 1];
+            params[key.name] = decoder(m[i]);
+        }
+        return { path, params };
+    };
+}
+function pathToRegexp(path, options = {}) {
+    const { delimiter = DEFAULT_DELIMITER, end = true, sensitive = false, trailing = true, } = options;
+    const keys = [];
+    const flags = sensitive ? "" : "i";
+    const sources = [];
+    for (const input of pathsToArray(path, [])) {
+        const data = typeof input === "object" ? input : parse(input, options);
+        for (const tokens of flatten(data.tokens, 0, [])) {
+            sources.push(toRegExpSource(tokens, delimiter, keys, data.originalPath));
+        }
+    }
+    let pattern = `^(?:${sources.join("|")})`;
+    if (trailing)
+        pattern += `(?:${escape(delimiter)}$)?`;
+    pattern += end ? "$" : `(?=${escape(delimiter)}|$)`;
+    const regexp = new RegExp(pattern, flags);
+    return { regexp, keys };
+}
+/**
+ * Convert a path or array of paths into a flat array.
+ */
+function pathsToArray(paths, init) {
+    if (Array.isArray(paths)) {
+        for (const p of paths)
+            pathsToArray(p, init);
+    }
+    else {
+        init.push(paths);
+    }
+    return init;
+}
+/**
+ * Generate a flat list of sequence tokens from the given tokens.
+ */
+function* flatten(tokens, index, init) {
+    if (index === tokens.length) {
+        return yield init;
+    }
+    const token = tokens[index];
+    if (token.type === "group") {
+        for (const seq of flatten(token.tokens, 0, init.slice())) {
+            yield* flatten(tokens, index + 1, seq);
+        }
+    }
+    else {
+        init.push(token);
+    }
+    yield* flatten(tokens, index + 1, init);
+}
+/**
+ * Transform a flat sequence of tokens into a regular expression.
+ */
+function toRegExpSource(tokens, delimiter, keys, originalPath) {
+    let result = "";
+    let backtrack = "";
+    let isSafeSegmentParam = true;
+    for (const token of tokens) {
+        if (token.type === "text") {
+            result += escape(token.value);
+            backtrack += token.value;
+            isSafeSegmentParam || (isSafeSegmentParam = token.value.includes(delimiter));
+            continue;
+        }
+        if (token.type === "param" || token.type === "wildcard") {
+            if (!isSafeSegmentParam && !backtrack) {
+                throw new PathError(`Missing text before "${token.name}" ${token.type}`, originalPath);
+            }
+            if (token.type === "param") {
+                result += `(${negate(delimiter, isSafeSegmentParam ? "" : backtrack)}+)`;
+            }
+            else {
+                result += `([\\s\\S]+)`;
+            }
+            keys.push(token);
+            backtrack = "";
+            isSafeSegmentParam = false;
+            continue;
+        }
+    }
+    return result;
+}
+/**
+ * Block backtracking on previous text and ignore delimiter string.
+ */
+function negate(delimiter, backtrack) {
+    if (backtrack.length < 2) {
+        if (delimiter.length < 2)
+            return `[^${escape(delimiter + backtrack)}]`;
+        return `(?:(?!${escape(delimiter)})[^${escape(backtrack)}])`;
+    }
+    if (delimiter.length < 2) {
+        return `(?:(?!${escape(backtrack)})[^${escape(delimiter)}])`;
+    }
+    return `(?:(?!${escape(backtrack)}|${escape(delimiter)})[\\s\\S])`;
+}
+/**
+ * Stringify an array of tokens into a path string.
+ */
+function stringifyTokens(tokens) {
+    let value = "";
+    let i = 0;
+    function name(value) {
+        const isSafe = isNameSafe(value) && isNextNameSafe(tokens[i]);
+        return isSafe ? value : JSON.stringify(value);
+    }
+    while (i < tokens.length) {
+        const token = tokens[i++];
+        if (token.type === "text") {
+            value += escapeText(token.value);
+            continue;
+        }
+        if (token.type === "group") {
+            value += `{${stringifyTokens(token.tokens)}}`;
+            continue;
+        }
+        if (token.type === "param") {
+            value += `:${name(token.name)}`;
+            continue;
+        }
+        if (token.type === "wildcard") {
+            value += `*${name(token.name)}`;
+            continue;
+        }
+        throw new TypeError(`Unknown token type: ${token.type}`);
+    }
+    return value;
+}
+/**
+ * Stringify token data into a path string.
+ */
+function stringify(data) {
+    return stringifyTokens(data.tokens);
+}
+/**
+ * Validate the parameter name contains valid ID characters.
+ */
+function isNameSafe(name) {
+    const [first, ...rest] = name;
+    return ID_START.test(first) && rest.every((char) => ID_CONTINUE.test(char));
+}
+/**
+ * Validate the next token does not interfere with the current param name.
+ */
+function isNextNameSafe(token) {
+    if (token && token.type === "text")
+        return !ID_CONTINUE.test(token.value[0]);
+    return true;
+}
+//# sourceMappingURL=index.js.map
\ No newline at end of file
diff --git a/backend/node_modules/path-to-regexp/dist/index.js.map b/backend/node_modules/path-to-regexp/dist/index.js.map
new file mode 100644
index 0000000..ec14c73
--- /dev/null
+++ b/backend/node_modules/path-to-regexp/dist/index.js.map
@@ -0,0 +1 @@
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interface Text {\n  type: \"text\";\n  value: string;\n}\n\n/**\n * A parameter designed to match arbitrary text within a segment.\n */\nexport interface Parameter {\n  type: \"param\";\n  name: string;\n}\n\n/**\n * A wildcard parameter designed to match multiple segments.\n */\nexport interface Wildcard {\n  type: \"wildcard\";\n  name: string;\n}\n\n/**\n * A set of possible tokens to expand when matching.\n */\nexport interface Group {\n  type: \"group\";\n  tokens: Token[];\n}\n\n/**\n * A token that corresponds with a regexp capture.\n */\nexport type Key = Parameter | Wildcard;\n\n/**\n * A sequence of `path-to-regexp` keys that match capturing groups.\n */\nexport type Keys = Array<Key>;\n\n/**\n * A sequence of path match characters.\n */\nexport type Token = Text | Parameter | Wildcard | Group;\n\n/**\n * Tokenized path instance.\n */\nexport class TokenData {\n  constructor(\n    public readonly tokens: Token[],\n    public readonly originalPath?: string,\n  ) {}\n}\n\n/**\n 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   tokens.push({ type: \"char\", index: index++, value });\n    }\n  }\n\n  tokens.push({ type: \"end\", index, value: \"\" });\n\n  function consumeUntil(endType: TokenType): Token[] {\n    const output: Token[] = [];\n\n    while (true) {\n      const token = tokens[pos++];\n      if (token.type === endType) break;\n\n      if (token.type === \"char\" || token.type === \"escape\") {\n        let path = token.value;\n        let cur = tokens[pos];\n\n        while (cur.type === \"char\" || cur.type === \"escape\") {\n          path += cur.value;\n          cur = tokens[++pos];\n        }\n\n        output.push({\n          type: \"text\",\n          value: encodePath(path),\n        });\n        continue;\n      }\n\n      if (token.type === \"param\" || token.type === \"wildcard\") {\n        output.push({\n          type: token.type,\n          name: token.value,\n        });\n        continue;\n      }\n\n      if (token.type === \"{\") {\n        output.push({\n          type: \"group\",\n          tokens: consumeUntil(\"}\"),\n        });\n        continue;\n      }\n\n      throw new PathError(\n        `Unexpected ${token.type} at index ${token.index}, expected ${endType}`,\n        str,\n      );\n    }\n\n    return output;\n  }\n\n  return new TokenData(consumeUntil(\"end\"), str);\n}\n\n/**\n * Compile a string to a template function for the path.\n */\nexport function compile<P extends ParamData = ParamData>(\n  path: Path,\n  options: CompileOptions & ParseOptions = {},\n) {\n  const { encode = encodeURIComponent, delimiter = DEFAULT_DELIMITER } =\n    options;\n  const data = typeof path === \"object\" ? path : parse(path, options);\n  const fn = tokensToFunction(data.tokens, delimiter, encode);\n\n  return function path(params: P = {} as P) {\n    const [path, ...missing] = fn(params);\n    if (missing.length) {\n      throw new TypeError(`Missing parameters: ${missing.join(\", \")}`);\n    }\n    return path;\n  };\n}\n\nexport type ParamData = Partial<Record<string, string | string[]>>;\nexport type PathFunction<P extends ParamData> = (data?: P) => string;\n\nfunction tokensToFunction(\n  tokens: Token[],\n  delimiter: string,\n  encode: Encode | false,\n) {\n  const encoders = tokens.map((token) =>\n    tokenToFunction(token, delimiter, encode),\n  );\n\n  return (data: ParamData) => {\n    const result: string[] = [\"\"];\n\n    for (const encoder of encoders) {\n      const [value, ...extras] = encoder(data);\n      result[0] += value;\n      result.push(...extras);\n    }\n\n    return result;\n  };\n}\n\n/**\n * Convert a single token into a path building function.\n */\nfunction tokenToFunction(\n  token: Token,\n  delimiter: string,\n  encode: Encode | false,\n): (data: ParamData) => string[] {\n  if (token.type === \"text\") return () => [token.value];\n\n  if (token.type === \"group\") {\n    const fn = tokensToFunction(token.tokens, delimiter, encode);\n\n    return (data) => {\n      const [value, ...missing] = fn(data);\n      if (!missing.length) return [value];\n      return [\"\"];\n    };\n  }\n\n  const encodeValue = encode || NOOP_VALUE;\n\n  if (token.type === \"wildcard\" && encode !== false) {\n    return (data) => {\n      const value = data[token.name];\n      if (value == null) return [\"\", token.name];\n\n      if (!Array.isArray(value) || value.length === 0) {\n        throw new TypeError(`Expected \"${token.name}\" to be a non-empty array`);\n      }\n\n      return [\n        value\n          .map((value, index) => {\n            if (typeof value !== \"string\") {\n              throw new TypeError(\n                `Expected \"${token.name}/${index}\" to be a string`,\n              );\n            }\n\n            return encodeValue(value);\n          })\n          .join(delimiter),\n      ];\n    };\n  }\n\n  return (data) => {\n    const value = data[token.name];\n    if (value == null) return [\"\", token.name];\n\n    if (typeof value !== \"string\") {\n      throw new TypeError(`Expected \"${token.name}\" to be a string`);\n    }\n\n    return [encodeValue(value)];\n  };\n}\n\n/**\n * A match result contains data about the path match.\n */\nexport interface MatchResult<P extends ParamData> {\n  path: string;\n  params: P;\n}\n\n/**\n * A match is either `false` (no match) or a match result.\n */\nexport type Match<P extends ParamData> = false | MatchResult<P>;\n\n/**\n * The match function takes a string and returns whether it matched the path.\n */\nexport type MatchFunction<P extends ParamData> = (path: string) => Match<P>;\n\n/**\n * Supported path types.\n */\nexport type Path = string | TokenData;\n\n/**\n * Transform a path into a match function.\n */\nexport function match<P extends ParamData>(\n  path: Path | Path[],\n  options: MatchOptions & ParseOptions = {},\n): MatchFunction<P> {\n  const { decode = decodeURIComponent, delimiter = DEFAULT_DELIMITER } =\n    options;\n  const { regexp, keys } = pathToRegexp(path, options);\n\n  const decoders = keys.map((key) => {\n    if (decode === false) return NOOP_VALUE;\n    if (key.type === \"param\") return decode;\n    return (value: string) => value.split(delimiter).map(decode);\n  });\n\n  return function match(input: string) {\n    const m = regexp.exec(input);\n    if (!m) return false;\n\n    const path = m[0];\n    const params = Object.create(null);\n\n    for (let i = 1; i < m.length; i++) {\n      if (m[i] === undefined) continue;\n\n      const key = keys[i - 1];\n      const decoder = decoders[i - 1];\n      params[key.name] = decoder(m[i]);\n    }\n\n    return { path, params };\n  };\n}\n\nexport function pathToRegexp(\n  path: Path | Path[],\n  options: PathToRegexpOptions & ParseOptions = {},\n) {\n  const {\n    delimiter = DEFAULT_DELIMITER,\n    end = true,\n    sensitive = false,\n    trailing = true,\n  } = options;\n  const keys: Keys = [];\n  const flags = sensitive ? \"\" : \"i\";\n  const sources: string[] = [];\n\n  for (const input of pathsToArray(path, [])) {\n    const data = typeof input === \"object\" ? input : parse(input, options);\n    for (const tokens of flatten(data.tokens, 0, [])) {\n      sources.push(toRegExpSource(tokens, delimiter, keys, data.originalPath));\n    }\n  }\n\n  let pattern = `^(?:${sources.join(\"|\")})`;\n  if (trailing) pattern += `(?:${escape(delimiter)}$)?`;\n  pattern += end ? \"$\" : `(?=${escape(delimiter)}|$)`;\n\n  const regexp = new RegExp(pattern, flags);\n  return { regexp, keys };\n}\n\n/**\n * Convert a path or array of paths into a flat array.\n */\nfunction pathsToArray(paths: Path | Path[], init: Path[]): Path[] {\n  if (Array.isArray(paths)) {\n    for (const p of paths) pathsToArray(p, init);\n  } else {\n    init.push(paths);\n  }\n  return init;\n}\n\n/**\n * Flattened token set.\n */\ntype FlatToken = Text | Parameter | Wildcard;\n\n/**\n * Generate a flat list of sequence tokens from the given tokens.\n */\nfunction* flatten(\n  tokens: Token[],\n  index: number,\n  init: FlatToken[],\n): Generator<FlatToken[]> {\n  if (index === tokens.length) {\n    return yield init;\n  }\n\n  const token = tokens[index];\n\n  if (token.type === \"group\") {\n    for (const seq of flatten(token.tokens, 0, init.slice())) {\n      yield* flatten(tokens, index + 1, seq);\n    }\n  } else {\n    init.push(token);\n  }\n\n  yield* flatten(tokens, index + 1, init);\n}\n\n/**\n * Transform a flat sequence of tokens into a regular expression.\n */\nfunction toRegExpSource(\n  tokens: FlatToken[],\n  delimiter: string,\n  keys: Keys,\n  originalPath: string | undefined,\n): string {\n  let result = \"\";\n  let backtrack = \"\";\n  let isSafeSegmentParam = true;\n\n  for (const token of tokens) {\n    if (token.type === \"text\") {\n      result += escape(token.value);\n      backtrack += token.value;\n      isSafeSegmentParam ||= token.value.includes(delimiter);\n      continue;\n    }\n\n    if (token.type === \"param\" || token.type === \"wildcard\") {\n      if (!isSafeSegmentParam && !backtrack) {\n        throw new PathError(\n          `Missing text before \"${token.name}\" ${token.type}`,\n          originalPath,\n        );\n      }\n\n      if (token.type === \"param\") {\n        result += `(${negate(delimiter, isSafeSegmentParam ? \"\" : backtrack)}+)`;\n      } else {\n        result += `([\\\\s\\\\S]+)`;\n      }\n\n      keys.push(token);\n      backtrack = \"\";\n      isSafeSegmentParam = false;\n      continue;\n    }\n  }\n\n  return result;\n}\n\n/**\n * Block backtracking on previous text and ignore delimiter string.\n */\nfunction negate(delimiter: string, backtrack: string): string {\n  if (backtrack.length < 2) {\n    if (delimiter.length < 2) return `[^${escape(delimiter + backtrack)}]`;\n    return `(?:(?!${escape(delimiter)})[^${escape(backtrack)}])`;\n  }\n  if (delimiter.length < 2) {\n    return `(?:(?!${escape(backtrack)})[^${escape(delimiter)}])`;\n  }\n  return `(?:(?!${escape(backtrack)}|${escape(delimiter)})[\\\\s\\\\S])`;\n}\n\n/**\n * Stringify an array of tokens into a path string.\n */\nfunction stringifyTokens(tokens: Token[]): string {\n  let value = \"\";\n  let i = 0;\n\n  function name(value: string) {\n    const isSafe = isNameSafe(value) && isNextNameSafe(tokens[i]);\n    return isSafe ? value : JSON.stringify(value);\n  }\n\n  while (i < tokens.length) {\n    const token = tokens[i++];\n\n    if (token.type === \"text\") {\n      value += escapeText(token.value);\n      continue;\n    }\n\n    if (token.type === \"group\") {\n      value += `{${stringifyTokens(token.tokens)}}`;\n      continue;\n    }\n\n    if (token.type === \"param\") {\n      value += `:${name(token.name)}`;\n      continue;\n    }\n\n    if (token.type === \"wildcard\") {\n      value += `*${name(token.name)}`;\n      continue;\n    }\n\n    throw new TypeError(`Unknown token type: ${(token as any).type}`);\n  }\n\n  return value;\n}\n\n/**\n * Stringify token data into a path string.\n */\nexport function stringify(data: TokenData): string {\n  return stringifyTokens(data.tokens);\n}\n\n/**\n * Validate the parameter name contains valid ID characters.\n */\nfunction isNameSafe(name: string): boolean {\n  const [first, ...rest] = name;\n  return ID_START.test(first) && rest.every((char) => ID_CONTINUE.test(char));\n}\n\n/**\n * Validate the next token does not interfere with the current param name.\n */\nfunction isNextNameSafe(token: Token | undefined): boolean {\n  if (token && token.type === \"text\") return !ID_CONTINUE.test(token.value[0]);\n  return true;\n}\n"]}
\ No newline at end of file
diff --git a/backend/node_modules/path-to-regexp/package.json b/backend/node_modules/path-to-regexp/package.json
new file mode 100644
index 0000000..7ae266e
--- /dev/null
+++ b/backend/node_modules/path-to-regexp/package.json
@@ -0,0 +1,64 @@
+{
+  "name": "path-to-regexp",
+  "version": "8.3.0",
+  "description": "Express style path to RegExp utility",
+  "keywords": [
+    "express",
+    "regexp",
+    "route",
+    "routing"
+  ],
+  "repository": {
+    "type": "git",
+    "url": "https://github.com/pillarjs/path-to-regexp.git"
+  },
+  "funding": {
+    "type": "opencollective",
+    "url": "https://opencollective.com/express"
+  },
+  "license": "MIT",
+  "exports": "./dist/index.js",
+  "main": "dist/index.js",
+  "typings": "dist/index.d.ts",
+  "files": [
+    "dist/"
+  ],
+  "scripts": {
+    "bench": "vitest bench",
+    "build": "ts-scripts build",
+    "format": "ts-scripts format",
+    "lint": "ts-scripts lint",
+    "prepare": "ts-scripts install && npm run build",
+    "size": "size-limit",
+    "specs": "ts-scripts specs",
+    "test": "ts-scripts test && npm run size"
+  },
+  "devDependencies": {
+    "@borderless/ts-scripts": "^0.15.0",
+    "@size-limit/preset-small-lib": "^11.1.2",
+    "@types/node": "^22.7.2",
+    "@types/semver": "^7.3.1",
+    "@vitest/coverage-v8": "^3.0.5",
+    "recheck": "^4.4.5",
+    "size-limit": "^11.1.2",
+    "typescript": "^5.7.3",
+    "vitest": "^3.0.5"
+  },
+  "publishConfig": {
+    "access": "public"
+  },
+  "size-limit": [
+    {
+      "path": "dist/index.js",
+      "limit": "2 kB"
+    }
+  ],
+  "ts-scripts": {
+    "dist": [
+      "dist"
+    ],
+    "project": [
+      "tsconfig.build.json"
+    ]
+  }
+}
diff --git a/backend/node_modules/proxy-addr/HISTORY.md b/backend/node_modules/proxy-addr/HISTORY.md
new file mode 100644
index 0000000..8480242
--- /dev/null
+++ b/backend/node_modules/proxy-addr/HISTORY.md
@@ -0,0 +1,161 @@
+2.0.7 / 2021-05-31
+==================
+
+  * deps: forwarded@0.2.0
+    - Use `req.socket` over deprecated `req.connection`
+
+2.0.6 / 2020-02-24
+==================
+
+  * deps: ipaddr.js@1.9.1
+
+2.0.5 / 2019-04-16
+==================
+
+  * deps: ipaddr.js@1.9.0
+
+2.0.4 / 2018-07-26
+==================
+
+  * deps: ipaddr.js@1.8.0
+
+2.0.3 / 2018-02-19
+==================
+
+  * deps: ipaddr.js@1.6.0
+
+2.0.2 / 2017-09-24
+==================
+
+  * deps: forwarded@~0.1.2
+    - perf: improve header parsing
+    - perf: reduce overhead when no `X-Forwarded-For` header
+
+2.0.1 / 2017-09-10
+==================
+
+  * deps: forwarded@~0.1.1
+    - Fix trimming leading / trailing OWS
+    - perf: hoist regular expression
+  * deps: ipaddr.js@1.5.2
+
+2.0.0 / 2017-08-08
+==================
+
+  * Drop support for Node.js below 0.10
+
+1.1.5 / 2017-07-25
+==================
+
+  * Fix array argument being altered
+  * deps: ipaddr.js@1.4.0
+
+1.1.4 / 2017-03-24
+==================
+
+  * deps: ipaddr.js@1.3.0
+
+1.1.3 / 2017-01-14
+==================
+
+  * deps: ipaddr.js@1.2.0
+
+1.1.2 / 2016-05-29
+==================
+
+  * deps: ipaddr.js@1.1.1
+    - Fix IPv6-mapped IPv4 validation edge cases
+
+1.1.1 / 2016-05-03
+==================
+
+  * Fix regression matching mixed versions against multiple subnets
+
+1.1.0 / 2016-05-01
+==================
+
+  * Fix accepting various invalid netmasks
+    - IPv4 netmasks must be contingous
+    - IPv6 addresses cannot be used as a netmask
+  * deps: ipaddr.js@1.1.0
+
+1.0.10 / 2015-12-09
+===================
+
+  * deps: ipaddr.js@1.0.5
+    - Fix regression in `isValid` with non-string arguments
+
+1.0.9 / 2015-12-01
+==================
+
+  * deps: ipaddr.js@1.0.4
+    - Fix accepting some invalid IPv6 addresses
+    - Reject CIDRs with negative or overlong masks
+  * perf: enable strict mode
+
+1.0.8 / 2015-05-10
+==================
+
+  * deps: ipaddr.js@1.0.1
+
+1.0.7 / 2015-03-16
+==================
+
+  * deps: ipaddr.js@0.1.9
+    - Fix OOM on certain inputs to `isValid`
+
+1.0.6 / 2015-02-01
+==================
+
+  * deps: ipaddr.js@0.1.8
+
+1.0.5 / 2015-01-08
+==================
+
+  * deps: ipaddr.js@0.1.6
+
+1.0.4 / 2014-11-23
+==================
+
+  * deps: ipaddr.js@0.1.5
+    - Fix edge cases with `isValid`
+
+1.0.3 / 2014-09-21
+==================
+
+  * Use `forwarded` npm module
+
+1.0.2 / 2014-09-18
+==================
+
+  * Fix a global leak when multiple subnets are trusted
+  * Support Node.js 0.6
+  * deps: ipaddr.js@0.1.3
+
+1.0.1 / 2014-06-03
+==================
+
+  * Fix links in npm package
+
+1.0.0 / 2014-05-08
+==================
+
+  * Add `trust` argument to determine proxy trust on
+    * Accepts custom function
+    * Accepts IPv4/IPv6 address(es)
+    * Accepts subnets
+    * Accepts pre-defined names
+  * Add optional `trust` argument to `proxyaddr.all` to
+    stop at first untrusted
+  * Add `proxyaddr.compile` to pre-compile `trust` function
+    to make subsequent calls faster
+
+0.0.1 / 2014-05-04
+==================
+
+  * Fix bad npm publish
+
+0.0.0 / 2014-05-04
+==================
+
+  * Initial release
diff --git a/backend/node_modules/proxy-addr/LICENSE b/backend/node_modules/proxy-addr/LICENSE
new file mode 100644
index 0000000..cab251c
--- /dev/null
+++ b/backend/node_modules/proxy-addr/LICENSE
@@ -0,0 +1,22 @@
+(The MIT License)
+
+Copyright (c) 2014-2016 Douglas Christopher Wilson
+
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of this software and associated documentation files (the
+'Software'), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sublicense, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to
+the following conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
diff --git a/backend/node_modules/proxy-addr/README.md b/backend/node_modules/proxy-addr/README.md
new file mode 100644
index 0000000..69c0b63
--- /dev/null
+++ b/backend/node_modules/proxy-addr/README.md
@@ -0,0 +1,139 @@
+# proxy-addr
+
+[![NPM Version][npm-version-image]][npm-url]
+[![NPM Downloads][npm-downloads-image]][npm-url]
+[![Node.js Version][node-image]][node-url]
+[![Build Status][ci-image]][ci-url]
+[![Test Coverage][coveralls-image]][coveralls-url]
+
+Determine address of proxied request
+
+## Install
+
+This is a [Node.js](https://nodejs.org/en/) module available through the
+[npm registry](https://www.npmjs.com/). Installation is done using the
+[`npm install` command](https://docs.npmjs.com/getting-started/installing-npm-packages-locally):
+
+```sh
+$ npm install proxy-addr
+```
+
+## API
+
+```js
+var proxyaddr = require('proxy-addr')
+```
+
+### proxyaddr(req, trust)
+
+Return the address of the request, using the given `trust` parameter.
+
+The `trust` argument is a function that returns `true` if you trust
+the address, `false` if you don't. The closest untrusted address is
+returned.
+
+```js
+proxyaddr(req, function (addr) { return addr === '127.0.0.1' })
+proxyaddr(req, function (addr, i) { return i < 1 })
+```
+
+The `trust` arugment may also be a single IP address string or an
+array of trusted addresses, as plain IP addresses, CIDR-formatted
+strings, or IP/netmask strings.
+
+```js
+proxyaddr(req, '127.0.0.1')
+proxyaddr(req, ['127.0.0.0/8', '10.0.0.0/8'])
+proxyaddr(req, ['127.0.0.0/255.0.0.0', '192.168.0.0/255.255.0.0'])
+```
+
+This module also supports IPv6. Your IPv6 addresses will be normalized
+automatically (i.e. `fe80::00ed:1` equals `fe80:0:0:0:0:0:ed:1`).
+
+```js
+proxyaddr(req, '::1')
+proxyaddr(req, ['::1/128', 'fe80::/10'])
+```
+
+This module will automatically work with IPv4-mapped IPv6 addresses
+as well to support node.js in IPv6-only mode. This means that you do
+not have to specify both `::ffff:a00:1` and `10.0.0.1`.
+
+As a convenience, this module also takes certain pre-defined names
+in addition to IP addresses, which expand into IP addresses:
+
+```js
+proxyaddr(req, 'loopback')
+proxyaddr(req, ['loopback', 'fc00:ac:1ab5:fff::1/64'])
+```
+
+  * `loopback`: IPv4 and IPv6 loopback addresses (like `::1` and
+    `127.0.0.1`).
+  * `linklocal`: IPv4 and IPv6 link-local addresses (like
+    `fe80::1:1:1:1` and `169.254.0.1`).
+  * `uniquelocal`: IPv4 private addresses and IPv6 unique-local
+    addresses (like `fc00:ac:1ab5:fff::1` and `192.168.0.1`).
+
+When `trust` is specified as a function, it will be called for each
+address to determine if it is a trusted address. The function is
+given two arguments: `addr` and `i`, where `addr` is a string of
+the address to check and `i` is a number that represents the distance
+from the socket address.
+
+### proxyaddr.all(req, [trust])
+
+Return all the addresses of the request, optionally stopping at the
+first untrusted. This array is ordered from closest to furthest
+(i.e. `arr[0] === req.connection.remoteAddress`).
+
+```js
+proxyaddr.all(req)
+```
+
+The optional `trust` argument takes the same arguments as `trust`
+does in `proxyaddr(req, trust)`.
+
+```js
+proxyaddr.all(req, 'loopback')
+```
+
+### proxyaddr.compile(val)
+
+Compiles argument `val` into a `trust` function. This function takes
+the same arguments as `trust` does in `proxyaddr(req, trust)` and
+returns a function suitable for `proxyaddr(req, trust)`.
+
+```js
+var trust = proxyaddr.compile('loopback')
+var addr = proxyaddr(req, trust)
+```
+
+This function is meant to be optimized for use against every request.
+It is recommend to compile a trust function up-front for the trusted
+configuration and pass that to `proxyaddr(req, trust)` for each request.
+
+## Testing
+
+```sh
+$ npm test
+```
+
+## Benchmarks
+
+```sh
+$ npm run-script bench
+```
+
+## License
+
+[MIT](LICENSE)
+
+[ci-image]: https://badgen.net/github/checks/jshttp/proxy-addr/master?label=ci
+[ci-url]: https://github.com/jshttp/proxy-addr/actions?query=workflow%3Aci
+[coveralls-image]: https://badgen.net/coveralls/c/github/jshttp/proxy-addr/master
+[coveralls-url]: https://coveralls.io/r/jshttp/proxy-addr?branch=master
+[node-image]: https://badgen.net/npm/node/proxy-addr
+[node-url]: https://nodejs.org/en/download
+[npm-downloads-image]: https://badgen.net/npm/dm/proxy-addr
+[npm-url]: https://npmjs.org/package/proxy-addr
+[npm-version-image]: https://badgen.net/npm/v/proxy-addr
diff --git a/backend/node_modules/proxy-addr/index.js b/backend/node_modules/proxy-addr/index.js
new file mode 100644
index 0000000..a909b05
--- /dev/null
+++ b/backend/node_modules/proxy-addr/index.js
@@ -0,0 +1,327 @@
+/*!
+ * proxy-addr
+ * Copyright(c) 2014-2016 Douglas Christopher Wilson
+ * MIT Licensed
+ */
+
+'use strict'
+
+/**
+ * Module exports.
+ * @public
+ */
+
+module.exports = proxyaddr
+module.exports.all = alladdrs
+module.exports.compile = compile
+
+/**
+ * Module dependencies.
+ * @private
+ */
+
+var forwarded = require('forwarded')
+var ipaddr = require('ipaddr.js')
+
+/**
+ * Variables.
+ * @private
+ */
+
+var DIGIT_REGEXP = /^[0-9]+$/
+var isip = ipaddr.isValid
+var parseip = ipaddr.parse
+
+/**
+ * Pre-defined IP ranges.
+ * @private
+ */
+
+var IP_RANGES = {
+  linklocal: ['169.254.0.0/16', 'fe80::/10'],
+  loopback: ['127.0.0.1/8', '::1/128'],
+  uniquelocal: ['10.0.0.0/8', '172.16.0.0/12', '192.168.0.0/16', 'fc00::/7']
+}
+
+/**
+ * Get all addresses in the request, optionally stopping
+ * at the first untrusted.
+ *
+ * @param {Object} request
+ * @param {Function|Array|String} [trust]
+ * @public
+ */
+
+function alladdrs (req, trust) {
+  // get addresses
+  var addrs = forwarded(req)
+
+  if (!trust) {
+    // Return all addresses
+    return addrs
+  }
+
+  if (typeof trust !== 'function') {
+    trust = compile(trust)
+  }
+
+  for (var i = 0; i < addrs.length - 1; i++) {
+    if (trust(addrs[i], i)) continue
+
+    addrs.length = i + 1
+  }
+
+  return addrs
+}
+
+/**
+ * Compile argument into trust function.
+ *
+ * @param {Array|String} val
+ * @private
+ */
+
+function compile (val) {
+  if (!val) {
+    throw new TypeError('argument is required')
+  }
+
+  var trust
+
+  if (typeof val === 'string') {
+    trust = [val]
+  } else if (Array.isArray(val)) {
+    trust = val.slice()
+  } else {
+    throw new TypeError('unsupported trust argument')
+  }
+
+  for (var i = 0; i < trust.length; i++) {
+    val = trust[i]
+
+    if (!Object.prototype.hasOwnProperty.call(IP_RANGES, val)) {
+      continue
+    }
+
+    // Splice in pre-defined range
+    val = IP_RANGES[val]
+    trust.splice.apply(trust, [i, 1].concat(val))
+    i += val.length - 1
+  }
+
+  return compileTrust(compileRangeSubnets(trust))
+}
+
+/**
+ * Compile `arr` elements into range subnets.
+ *
+ * @param {Array} arr
+ * @private
+ */
+
+function compileRangeSubnets (arr) {
+  var rangeSubnets = new Array(arr.length)
+
+  for (var i = 0; i < arr.length; i++) {
+    rangeSubnets[i] = parseipNotation(arr[i])
+  }
+
+  return rangeSubnets
+}
+
+/**
+ * Compile range subnet array into trust function.
+ *
+ * @param {Array} rangeSubnets
+ * @private
+ */
+
+function compileTrust (rangeSubnets) {
+  // Return optimized function based on length
+  var len = rangeSubnets.length
+  return len === 0
+    ? trustNone
+    : len === 1
+      ? trustSingle(rangeSubnets[0])
+      : trustMulti(rangeSubnets)
+}
+
+/**
+ * Parse IP notation string into range subnet.
+ *
+ * @param {String} note
+ * @private
+ */
+
+function parseipNotation (note) {
+  var pos = note.lastIndexOf('/')
+  var str = pos !== -1
+    ? note.substring(0, pos)
+    : note
+
+  if (!isip(str)) {
+    throw new TypeError('invalid IP address: ' + str)
+  }
+
+  var ip = parseip(str)
+
+  if (pos === -1 && ip.kind() === 'ipv6' && ip.isIPv4MappedAddress()) {
+    // Store as IPv4
+    ip = ip.toIPv4Address()
+  }
+
+  var max = ip.kind() === 'ipv6'
+    ? 128
+    : 32
+
+  var range = pos !== -1
+    ? note.substring(pos + 1, note.length)
+    : null
+
+  if (range === null) {
+    range = max
+  } else if (DIGIT_REGEXP.test(range)) {
+    range = parseInt(range, 10)
+  } else if (ip.kind() === 'ipv4' && isip(range)) {
+    range = parseNetmask(range)
+  } else {
+    range = null
+  }
+
+  if (range <= 0 || range > max) {
+    throw new TypeError('invalid range on address: ' + note)
+  }
+
+  return [ip, range]
+}
+
+/**
+ * Parse netmask string into CIDR range.
+ *
+ * @param {String} netmask
+ * @private
+ */
+
+function parseNetmask (netmask) {
+  var ip = parseip(netmask)
+  var kind = ip.kind()
+
+  return kind === 'ipv4'
+    ? ip.prefixLengthFromSubnetMask()
+    : null
+}
+
+/**
+ * Determine address of proxied request.
+ *
+ * @param {Object} request
+ * @param {Function|Array|String} trust
+ * @public
+ */
+
+function proxyaddr (req, trust) {
+  if (!req) {
+    throw new TypeError('req argument is required')
+  }
+
+  if (!trust) {
+    throw new TypeError('trust argument is required')
+  }
+
+  var addrs = alladdrs(req, trust)
+  var addr = addrs[addrs.length - 1]
+
+  return addr
+}
+
+/**
+ * Static trust function to trust nothing.
+ *
+ * @private
+ */
+
+function trustNone () {
+  return false
+}
+
+/**
+ * Compile trust function for multiple subnets.
+ *
+ * @param {Array} subnets
+ * @private
+ */
+
+function trustMulti (subnets) {
+  return function trust (addr) {
+    if (!isip(addr)) return false
+
+    var ip = parseip(addr)
+    var ipconv
+    var kind = ip.kind()
+
+    for (var i = 0; i < subnets.length; i++) {
+      var subnet = subnets[i]
+      var subnetip = subnet[0]
+      var subnetkind = subnetip.kind()
+      var subnetrange = subnet[1]
+      var trusted = ip
+
+      if (kind !== subnetkind) {
+        if (subnetkind === 'ipv4' && !ip.isIPv4MappedAddress()) {
+          // Incompatible IP addresses
+          continue
+        }
+
+        if (!ipconv) {
+          // Convert IP to match subnet IP kind
+          ipconv = subnetkind === 'ipv4'
+            ? ip.toIPv4Address()
+            : ip.toIPv4MappedAddress()
+        }
+
+        trusted = ipconv
+      }
+
+      if (trusted.match(subnetip, subnetrange)) {
+        return true
+      }
+    }
+
+    return false
+  }
+}
+
+/**
+ * Compile trust function for single subnet.
+ *
+ * @param {Object} subnet
+ * @private
+ */
+
+function trustSingle (subnet) {
+  var subnetip = subnet[0]
+  var subnetkind = subnetip.kind()
+  var subnetisipv4 = subnetkind === 'ipv4'
+  var subnetrange = subnet[1]
+
+  return function trust (addr) {
+    if (!isip(addr)) return false
+
+    var ip = parseip(addr)
+    var kind = ip.kind()
+
+    if (kind !== subnetkind) {
+      if (subnetisipv4 && !ip.isIPv4MappedAddress()) {
+        // Incompatible IP addresses
+        return false
+      }
+
+      // Convert IP to match subnet IP kind
+      ip = subnetisipv4
+        ? ip.toIPv4Address()
+        : ip.toIPv4MappedAddress()
+    }
+
+    return ip.match(subnetip, subnetrange)
+  }
+}
diff --git a/backend/node_modules/proxy-addr/package.json b/backend/node_modules/proxy-addr/package.json
new file mode 100644
index 0000000..24ba8f7
--- /dev/null
+++ b/backend/node_modules/proxy-addr/package.json
@@ -0,0 +1,47 @@
+{
+  "name": "proxy-addr",
+  "description": "Determine address of proxied request",
+  "version": "2.0.7",
+  "author": "Douglas Christopher Wilson <doug@somethingdoug.com>",
+  "license": "MIT",
+  "keywords": [
+    "ip",
+    "proxy",
+    "x-forwarded-for"
+  ],
+  "repository": "jshttp/proxy-addr",
+  "dependencies": {
+    "forwarded": "0.2.0",
+    "ipaddr.js": "1.9.1"
+  },
+  "devDependencies": {
+    "benchmark": "2.1.4",
+    "beautify-benchmark": "0.2.4",
+    "deep-equal": "1.0.1",
+    "eslint": "7.26.0",
+    "eslint-config-standard": "14.1.1",
+    "eslint-plugin-import": "2.23.4",
+    "eslint-plugin-markdown": "2.2.0",
+    "eslint-plugin-node": "11.1.0",
+    "eslint-plugin-promise": "4.3.1",
+    "eslint-plugin-standard": "4.1.0",
+    "mocha": "8.4.0",
+    "nyc": "15.1.0"
+  },
+  "files": [
+    "LICENSE",
+    "HISTORY.md",
+    "README.md",
+    "index.js"
+  ],
+  "engines": {
+    "node": ">= 0.10"
+  },
+  "scripts": {
+    "bench": "node benchmark/index.js",
+    "lint": "eslint .",
+    "test": "mocha --reporter spec --bail --check-leaks test/",
+    "test-ci": "nyc --reporter=lcov --reporter=text npm test",
+    "test-cov": "nyc --reporter=html --reporter=text npm test"
+  }
+}
diff --git a/backend/node_modules/qs/.editorconfig b/backend/node_modules/qs/.editorconfig
new file mode 100644
index 0000000..6adecfb
--- /dev/null
+++ b/backend/node_modules/qs/.editorconfig
@@ -0,0 +1,46 @@
+root = true
+
+[*]
+indent_style = space
+indent_size = 4
+end_of_line = lf
+charset = utf-8
+trim_trailing_whitespace = true
+insert_final_newline = true
+max_line_length = 160
+quote_type = single
+
+[test/*]
+max_line_length = off
+
+[LICENSE.md]
+indent_size = off
+
+[*.md]
+max_line_length = off
+
+[*.json]
+max_line_length = off
+
+[Makefile]
+max_line_length = off
+
+[CHANGELOG.md]
+indent_style = space
+indent_size = 2
+
+[LICENSE]
+indent_size = 2
+max_line_length = off
+
+[coverage/**/*]
+indent_size = off
+indent_style = off
+indent = off
+max_line_length = off
+
+[.nycrc]
+indent_style = tab
+
+[tea.yaml]
+indent_size = 2
diff --git a/backend/node_modules/qs/.eslintrc b/backend/node_modules/qs/.eslintrc
new file mode 100644
index 0000000..a89f60e
--- /dev/null
+++ b/backend/node_modules/qs/.eslintrc
@@ -0,0 +1,39 @@
+{
+    "root": true,
+
+    "extends": "@ljharb",
+
+    "ignorePatterns": [
+        "dist/",
+    ],
+
+    "rules": {
+        "complexity": 0,
+        "consistent-return": 1,
+        "func-name-matching": 0,
+        "id-length": [2, { "min": 1, "max": 25, "properties": "never" }],
+        "indent": [2, 4],
+        "max-lines": 0,
+        "max-lines-per-function": [2, { "max": 150 }],
+        "max-params": [2, 18],
+        "max-statements": [2, 100],
+        "multiline-comment-style": 0,
+        "no-continue": 1,
+        "no-magic-numbers": 0,
+        "no-restricted-syntax": [2, "BreakStatement", "DebuggerStatement", "ForInStatement", "LabeledStatement", "WithStatement"],
+    },
+
+    "overrides": [
+        {
+            "files": "test/**",
+            "rules": {
+                "function-paren-newline": 0,
+                "max-lines-per-function": 0,
+                "max-statements": 0,
+                "no-buffer-constructor": 0,
+                "no-extend-native": 0,
+                "no-throw-literal": 0,
+            },
+        },
+    ],
+}
diff --git a/backend/node_modules/qs/.github/FUNDING.yml b/backend/node_modules/qs/.github/FUNDING.yml
new file mode 100644
index 0000000..0355f4f
--- /dev/null
+++ b/backend/node_modules/qs/.github/FUNDING.yml
@@ -0,0 +1,12 @@
+# These are supported funding model platforms
+
+github: [ljharb]
+patreon: # Replace with a single Patreon username
+open_collective: # Replace with a single Open Collective username
+ko_fi: # Replace with a single Ko-fi username
+tidelift: npm/qs
+community_bridge: # Replace with a single Community Bridge project-name e.g., cloud-foundry
+liberapay: # Replace with a single Liberapay username
+issuehunt: # Replace with a single IssueHunt username
+otechie: # Replace with a single Otechie username
+custom: # Replace with a single custom sponsorship URL
diff --git a/backend/node_modules/qs/.nycrc b/backend/node_modules/qs/.nycrc
new file mode 100644
index 0000000..1d57cab
--- /dev/null
+++ b/backend/node_modules/qs/.nycrc
@@ -0,0 +1,13 @@
+{
+	"all": true,
+	"check-coverage": false,
+	"reporter": ["text-summary", "text", "html", "json"],
+	"lines": 86,
+	"statements": 85.93,
+	"functions": 82.43,
+	"branches": 76.06,
+	"exclude": [
+		"coverage",
+		"dist"
+	]
+}
diff --git a/backend/node_modules/qs/CHANGELOG.md b/backend/node_modules/qs/CHANGELOG.md
new file mode 100644
index 0000000..dc8e879
--- /dev/null
+++ b/backend/node_modules/qs/CHANGELOG.md
@@ -0,0 +1,622 @@
+## **6.14.0**
+- [New] `parse`: add `throwOnParameterLimitExceeded` option (#517)
+- [Refactor] `parse`: use `utils.combine` more
+- [patch] `parse`: add explicit `throwOnLimitExceeded` default
+- [actions] use shared action; re-add finishers
+- [meta] Fix changelog formatting bug
+- [Deps] update `side-channel`
+- [Dev Deps] update `es-value-fixtures`, `has-bigints`, `has-proto`, `has-symbols`
+- [Tests] increase coverage
+
+## **6.13.1**
+- [Fix] `stringify`: avoid a crash when a `filter` key is `null`
+- [Fix] `utils.merge`: functions should not be stringified into keys
+- [Fix] `parse`: avoid a crash with interpretNumericEntities: true, comma: true, and iso charset
+- [Fix] `stringify`: ensure a non-string `filter` does not crash
+- [Refactor] use `__proto__` syntax instead of `Object.create` for null objects
+- [Refactor] misc cleanup
+- [Tests] `utils.merge`: add some coverage
+- [Tests] fix a test case
+- [actions] split out node 10-20, and 20+
+- [Dev Deps] update `es-value-fixtures`, `mock-property`, `object-inspect`, `tape`
+
+## **6.13.0**
+- [New] `parse`: add `strictDepth` option (#511)
+- [Tests] use `npm audit` instead of `aud`
+
+## **6.12.3**
+- [Fix] `parse`: properly account for `strictNullHandling` when `allowEmptyArrays`
+- [meta] fix changelog indentation
+
+## **6.12.2**
+- [Fix] `parse`: parse encoded square brackets (#506)
+- [readme] add CII best practices badge
+
+## **6.12.1**
+- [Fix] `parse`: Disable `decodeDotInKeys` by default to restore previous behavior (#501)
+- [Performance] `utils`: Optimize performance under large data volumes, reduce memory usage, and speed up processing (#502)
+- [Refactor] `utils`: use `+=`
+- [Tests] increase coverage
+
+## **6.12.0**
+
+- [New] `parse`/`stringify`: add `decodeDotInKeys`/`encodeDotKeys` options (#488)
+- [New] `parse`: add `duplicates` option
+- [New] `parse`/`stringify`: add `allowEmptyArrays` option to allow [] in object values (#487)
+- [Refactor] `parse`/`stringify`: move allowDots config logic to its own variable
+- [Refactor] `stringify`: move option-handling code into `normalizeStringifyOptions`
+- [readme] update readme, add logos (#484)
+- [readme] `stringify`: clarify default `arrayFormat` behavior
+- [readme] fix line wrapping
+- [readme] remove dead badges
+- [Deps] update `side-channel`
+- [meta] make the dist build 50% smaller
+- [meta] add `sideEffects` flag
+- [meta] run build in prepack, not prepublish
+- [Tests] `parse`: remove useless tests; add coverage
+- [Tests] `stringify`: increase coverage
+- [Tests] use `mock-property`
+- [Tests] `stringify`: improve coverage
+- [Dev Deps] update `@ljharb/eslint-config `, `aud`, `has-override-mistake`, `has-property-descriptors`, `mock-property`, `npmignore`, `object-inspect`, `tape`
+- [Dev Deps] pin `glob`, since v10.3.8+ requires a broken `jackspeak`
+- [Dev Deps] pin `jackspeak` since 2.1.2+ depends on npm aliases, which kill the install process in npm < 6
+
+## **6.11.2**
+- [Fix] `parse`: Fix parsing when the global Object prototype is frozen (#473)
+- [Tests] add passing test cases with empty keys (#473)
+
+## **6.11.1**
+- [Fix] `stringify`: encode comma values more consistently (#463)
+- [readme] add usage of `filter` option for injecting custom serialization, i.e. of custom types (#447)
+- [meta] remove extraneous code backticks (#457)
+- [meta] fix changelog markdown
+- [actions] update checkout action
+- [actions] restrict action permissions
+- [Dev Deps] update `@ljharb/eslint-config`, `aud`, `object-inspect`, `tape`
+
+## **6.11.0**
+- [New] [Fix] `stringify`: revert 0e903c0; add `commaRoundTrip` option (#442)
+- [readme] fix version badge
+
+## **6.10.5**
+- [Fix] `stringify`: with `arrayFormat: comma`, properly include an explicit `[]` on a single-item array (#434)
+
+## **6.10.4**
+- [Fix] `stringify`: with `arrayFormat: comma`, include an explicit `[]` on a single-item array (#441)
+- [meta] use `npmignore` to autogenerate an npmignore file
+- [Dev Deps] update `eslint`, `@ljharb/eslint-config`, `aud`, `has-symbol`, `object-inspect`, `tape`
+
+## **6.10.3**
+- [Fix] `parse`: ignore `__proto__` keys (#428)
+- [Robustness] `stringify`: avoid relying on a global `undefined` (#427)
+- [actions] reuse common workflows
+- [Dev Deps] update `eslint`, `@ljharb/eslint-config`, `object-inspect`, `tape`
+
+## **6.10.2**
+- [Fix] `stringify`: actually fix cyclic references (#426)
+- [Fix] `stringify`: avoid encoding arrayformat comma when `encodeValuesOnly = true` (#424)
+- [readme] remove travis badge; add github actions/codecov badges; update URLs
+- [Docs] add note and links for coercing primitive values (#408)
+- [actions] update codecov uploader
+- [actions] update workflows
+- [Tests] clean up stringify tests slightly
+- [Dev Deps] update `eslint`, `@ljharb/eslint-config`, `aud`, `object-inspect`, `safe-publish-latest`, `tape`
+
+## **6.10.1**
+- [Fix] `stringify`: avoid exception on repeated object values (#402)
+
+## **6.10.0**
+- [New] `stringify`: throw on cycles, instead of an infinite loop (#395, #394, #393)
+- [New] `parse`: add `allowSparse` option for collapsing arrays with missing indices (#312)
+- [meta] fix README.md (#399)
+- [meta] only run `npm run dist` in publish, not install
+- [Dev Deps] update `eslint`, `@ljharb/eslint-config`, `aud`, `has-symbols`, `tape`
+- [Tests] fix tests on node v0.6
+- [Tests] use `ljharb/actions/node/install` instead of `ljharb/actions/node/run`
+- [Tests] Revert "[meta] ignore eclint transitive audit warning"
+
+## **6.9.7**
+- [Fix] `parse`: ignore `__proto__` keys (#428)
+- [Fix] `stringify`: avoid encoding arrayformat comma when `encodeValuesOnly = true` (#424)
+- [Robustness] `stringify`: avoid relying on a global `undefined` (#427)
+- [readme] remove travis badge; add github actions/codecov badges; update URLs
+- [Docs] add note and links for coercing primitive values (#408)
+- [Tests] clean up stringify tests slightly
+- [meta] fix README.md (#399)
+- Revert "[meta] ignore eclint transitive audit warning"
+- [actions] backport actions from main
+- [Dev Deps] backport updates from main
+
+## **6.9.6**
+- [Fix] restore `dist` dir; mistakenly removed in d4f6c32
+
+## **6.9.5**
+- [Fix] `stringify`: do not encode parens for RFC1738
+- [Fix] `stringify`: fix arrayFormat comma with empty array/objects (#350)
+- [Refactor] `format`: remove `util.assign` call
+- [meta] add "Allow Edits" workflow; update rebase workflow
+- [actions] switch Automatic Rebase workflow to `pull_request_target` event
+- [Tests] `stringify`: add tests for #378
+- [Tests] migrate tests to Github Actions
+- [Tests] run `nyc` on all tests; use `tape` runner
+- [Dev Deps] update `eslint`, `@ljharb/eslint-config`, `browserify`, `mkdirp`, `object-inspect`, `tape`; add `aud`
+
+## **6.9.4**
+- [Fix] `stringify`: when `arrayFormat` is `comma`, respect `serializeDate` (#364)
+- [Refactor] `stringify`: reduce branching (part of #350)
+- [Refactor] move `maybeMap` to `utils`
+- [Dev Deps] update `browserify`, `tape`
+
+## **6.9.3**
+- [Fix] proper comma parsing of URL-encoded commas (#361)
+- [Fix] parses comma delimited array while having percent-encoded comma treated as normal text (#336)
+
+## **6.9.2**
+- [Fix] `parse`: Fix parsing array from object with `comma` true (#359)
+- [Fix] `parse`: throw a TypeError instead of an Error for bad charset (#349)
+- [meta] ignore eclint transitive audit warning
+- [meta] fix indentation in package.json
+- [meta] add tidelift marketing copy
+- [Dev Deps] update `eslint`, `@ljharb/eslint-config`, `object-inspect`, `has-symbols`, `tape`, `mkdirp`, `iconv-lite`
+- [actions] add automatic rebasing / merge commit blocking
+
+## **6.9.1**
+- [Fix] `parse`: with comma true, handle field that holds an array of arrays (#335)
+- [Fix] `parse`: with comma true, do not split non-string values (#334)
+- [meta] add `funding` field
+- [Dev Deps] update `eslint`, `@ljharb/eslint-config`
+- [Tests] use shared travis-ci config
+
+## **6.9.0**
+- [New] `parse`/`stringify`: Pass extra key/value argument to `decoder` (#333)
+- [Dev Deps] update `eslint`, `@ljharb/eslint-config`, `evalmd`
+- [Tests] `parse`: add passing `arrayFormat` tests
+- [Tests] add `posttest` using `npx aud` to run `npm audit` without a lockfile
+- [Tests] up to `node` `v12.10`, `v11.15`, `v10.16`, `v8.16`
+- [Tests] `Buffer.from` in node v5.0-v5.9 and v4.0-v4.4 requires a TypedArray
+
+## **6.8.3**
+- [Fix] `parse`: ignore `__proto__` keys (#428)
+- [Robustness] `stringify`: avoid relying on a global `undefined` (#427)
+- [Fix] `stringify`: avoid encoding arrayformat comma when `encodeValuesOnly = true` (#424)
+- [readme] remove travis badge; add github actions/codecov badges; update URLs
+- [Tests] clean up stringify tests slightly
+- [Docs] add note and links for coercing primitive values (#408)
+- [meta] fix README.md (#399)
+- [actions] backport actions from main
+- [Dev Deps] backport updates from main
+- [Refactor] `stringify`: reduce branching
+- [meta] do not publish workflow files
+
+## **6.8.2**
+- [Fix] proper comma parsing of URL-encoded commas (#361)
+- [Fix] parses comma delimited array while having percent-encoded comma treated as normal text (#336)
+
+## **6.8.1**
+- [Fix] `parse`: Fix parsing array from object with `comma` true (#359)
+- [Fix] `parse`: throw a TypeError instead of an Error for bad charset (#349)
+- [Fix] `parse`: with comma true, handle field that holds an array of arrays (#335)
+- [fix] `parse`: with comma true, do not split non-string values (#334)
+- [meta] add tidelift marketing copy
+- [meta] add `funding` field
+- [Dev Deps] update `eslint`, `@ljharb/eslint-config`, `tape`, `safe-publish-latest`, `evalmd`, `has-symbols`, `iconv-lite`, `mkdirp`, `object-inspect`
+- [Tests] `parse`: add passing `arrayFormat` tests
+- [Tests] use shared travis-ci configs
+- [Tests] `Buffer.from` in node v5.0-v5.9 and v4.0-v4.4 requires a TypedArray
+- [actions] add automatic rebasing / merge commit blocking
+
+## **6.8.0**
+- [New] add `depth=false` to preserve the original key; [Fix] `depth=0` should preserve the original key (#326)
+- [New] [Fix] stringify symbols and bigints
+- [Fix] ensure node 0.12 can stringify Symbols
+- [Fix] fix for an impossible situation: when the formatter is called with a non-string value
+- [Refactor] `formats`: tiny bit of cleanup.
+- [Dev Deps] update `eslint`, `@ljharb/eslint-config`, `browserify`, `safe-publish-latest`, `iconv-lite`, `tape`
+- [Tests] add tests for `depth=0` and `depth=false` behavior, both current and intuitive/intended (#326)
+- [Tests] use `eclint` instead of `editorconfig-tools`
+- [docs] readme: add security note
+- [meta] add github sponsorship
+- [meta] add FUNDING.yml
+- [meta] Clean up license text so it’s properly detected as BSD-3-Clause
+
+## **6.7.3**
+- [Fix] `parse`: ignore `__proto__` keys (#428)
+- [Fix] `stringify`: avoid encoding arrayformat comma when `encodeValuesOnly = true` (#424)
+- [Robustness] `stringify`: avoid relying on a global `undefined` (#427)
+- [readme] remove travis badge; add github actions/codecov badges; update URLs
+- [Docs] add note and links for coercing primitive values (#408)
+- [meta] fix README.md (#399)
+- [meta] do not publish workflow files
+- [actions] backport actions from main
+- [Dev Deps] backport updates from main
+- [Tests] use `nyc` for coverage
+- [Tests] clean up stringify tests slightly
+
+## **6.7.2**
+- [Fix] proper comma parsing of URL-encoded commas (#361)
+- [Fix] parses comma delimited array while having percent-encoded comma treated as normal text (#336)
+
+## **6.7.1**
+- [Fix] `parse`: Fix parsing array from object with `comma` true (#359)
+- [Fix] `parse`: with comma true, handle field that holds an array of arrays (#335)
+- [fix] `parse`: with comma true, do not split non-string values (#334)
+- [Fix] `parse`: throw a TypeError instead of an Error for bad charset (#349)
+- [Fix] fix for an impossible situation: when the formatter is called with a non-string value
+- [Refactor] `formats`: tiny bit of cleanup.
+- readme: add security note
+- [meta] add tidelift marketing copy
+- [meta] add `funding` field
+- [meta] add FUNDING.yml
+- [meta] Clean up license text so it’s properly detected as BSD-3-Clause
+- [Dev Deps] update `eslint`, `@ljharb/eslint-config`, `tape`, `safe-publish-latest`, `evalmd`, `iconv-lite`, `mkdirp`, `object-inspect`, `browserify`
+- [Tests] `parse`: add passing `arrayFormat` tests
+- [Tests] use shared travis-ci configs
+- [Tests] `Buffer.from` in node v5.0-v5.9 and v4.0-v4.4 requires a TypedArray
+- [Tests] add tests for `depth=0` and `depth=false` behavior, both current and intuitive/intended
+- [Tests] use `eclint` instead of `editorconfig-tools`
+- [actions] add automatic rebasing / merge commit blocking
+
+## **6.7.0**
+- [New] `stringify`/`parse`: add `comma` as an `arrayFormat` option (#276, #219)
+- [Fix] correctly parse nested arrays (#212)
+- [Fix] `utils.merge`: avoid a crash with a null target and a truthy non-array source, also with an array source
+- [Robustness] `stringify`: cache `Object.prototype.hasOwnProperty`
+- [Refactor] `utils`: `isBuffer`: small tweak; add tests
+- [Refactor] use cached `Array.isArray`
+- [Refactor] `parse`/`stringify`: make a function to normalize the options
+- [Refactor] `utils`: reduce observable [[Get]]s
+- [Refactor] `stringify`/`utils`: cache `Array.isArray`
+- [Tests] always use `String(x)` over `x.toString()`
+- [Tests] fix Buffer tests to work in node < 4.5 and node < 5.10
+- [Tests] temporarily allow coverage to fail
+
+## **6.6.1**
+- [Fix] `parse`: ignore `__proto__` keys (#428)
+- [Fix] fix for an impossible situation: when the formatter is called with a non-string value
+- [Fix] `utils.merge`: avoid a crash with a null target and an array source
+- [Fix] `utils.merge`: avoid a crash with a null target and a truthy non-array source
+- [Fix] correctly parse nested arrays
+- [Robustness] `stringify`: avoid relying on a global `undefined` (#427)
+- [Robustness] `stringify`: cache `Object.prototype.hasOwnProperty`
+- [Refactor] `formats`: tiny bit of cleanup.
+- [Refactor] `utils`: `isBuffer`: small tweak; add tests
+- [Refactor]: `stringify`/`utils`: cache `Array.isArray`
+- [Refactor] `utils`: reduce observable [[Get]]s
+- [Refactor] use cached `Array.isArray`
+- [Refactor] `parse`/`stringify`: make a function to normalize the options
+- [readme] remove travis badge; add github actions/codecov badges; update URLs
+- [Docs] Clarify the need for "arrayLimit" option
+- [meta] fix README.md (#399)
+- [meta] do not publish workflow files
+- [meta] Clean up license text so it’s properly detected as BSD-3-Clause
+- [meta] add FUNDING.yml
+- [meta] Fixes typo in CHANGELOG.md
+- [actions] backport actions from main
+- [Tests] fix Buffer tests to work in node < 4.5 and node < 5.10
+- [Tests] always use `String(x)` over `x.toString()`
+- [Dev Deps] backport from main
+
+## **6.6.0**
+- [New] Add support for iso-8859-1, utf8 "sentinel" and numeric entities (#268)
+- [New] move two-value combine to a `utils` function (#189)
+- [Fix] `stringify`: fix a crash with `strictNullHandling` and a custom `filter`/`serializeDate` (#279)
+- [Fix] when `parseArrays` is false, properly handle keys ending in `[]` (#260)
+- [Fix] `stringify`: do not crash in an obscure combo of `interpretNumericEntities`, a bad custom `decoder`, & `iso-8859-1`
+- [Fix] `utils`: `merge`: fix crash when `source` is a truthy primitive & no options are provided
+- [refactor] `stringify`: Avoid arr = arr.concat(...), push to the existing instance (#269)
+- [Refactor] `parse`: only need to reassign the var once
+- [Refactor] `parse`/`stringify`: clean up `charset` options checking; fix defaults
+- [Refactor] add missing defaults
+- [Refactor] `parse`: one less `concat` call
+- [Refactor] `utils`: `compactQueue`: make it explicitly side-effecting
+- [Dev Deps] update `browserify`, `eslint`, `@ljharb/eslint-config`, `iconv-lite`, `safe-publish-latest`, `tape`
+- [Tests] up to `node` `v10.10`, `v9.11`, `v8.12`, `v6.14`, `v4.9`; pin included builds to LTS
+
+## **6.5.3**
+- [Fix] `parse`: ignore `__proto__` keys (#428)
+- [Fix] `utils.merge`: avoid a crash with a null target and a truthy non-array source
+- [Fix] correctly parse nested arrays
+- [Fix] `stringify`: fix a crash with `strictNullHandling` and a custom `filter`/`serializeDate` (#279)
+- [Fix] `utils`: `merge`: fix crash when `source` is a truthy primitive & no options are provided
+- [Fix] when `parseArrays` is false, properly handle keys ending in `[]`
+- [Fix] fix for an impossible situation: when the formatter is called with a non-string value
+- [Fix] `utils.merge`: avoid a crash with a null target and an array source
+- [Refactor] `utils`: reduce observable [[Get]]s
+- [Refactor] use cached `Array.isArray`
+- [Refactor] `stringify`: Avoid arr = arr.concat(...), push to the existing instance (#269)
+- [Refactor] `parse`: only need to reassign the var once
+- [Robustness] `stringify`: avoid relying on a global `undefined` (#427)
+- [readme] remove travis badge; add github actions/codecov badges; update URLs
+- [Docs] Clean up license text so it’s properly detected as BSD-3-Clause
+- [Docs] Clarify the need for "arrayLimit" option
+- [meta] fix README.md (#399)
+- [meta] add FUNDING.yml
+- [actions] backport actions from main
+- [Tests] always use `String(x)` over `x.toString()`
+- [Tests] remove nonexistent tape option
+- [Dev Deps] backport from main
+
+## **6.5.2**
+- [Fix] use `safer-buffer` instead of `Buffer` constructor
+- [Refactor] utils: `module.exports` one thing, instead of mutating `exports` (#230)
+- [Dev Deps] update `browserify`, `eslint`, `iconv-lite`, `safer-buffer`, `tape`, `browserify`
+
+## **6.5.1**
+- [Fix] Fix parsing & compacting very deep objects (#224)
+- [Refactor] name utils functions
+- [Dev Deps] update `eslint`, `@ljharb/eslint-config`, `tape`
+- [Tests] up to `node` `v8.4`; use `nvm install-latest-npm` so newer npm doesn’t break older node
+- [Tests] Use precise dist for Node.js 0.6 runtime (#225)
+- [Tests] make 0.6 required, now that it’s passing
+- [Tests] on `node` `v8.2`; fix npm on node 0.6
+
+## **6.5.0**
+- [New] add `utils.assign`
+- [New] pass default encoder/decoder to custom encoder/decoder functions (#206)
+- [New] `parse`/`stringify`: add `ignoreQueryPrefix`/`addQueryPrefix` options, respectively (#213)
+- [Fix] Handle stringifying empty objects with addQueryPrefix (#217)
+- [Fix] do not mutate `options` argument (#207)
+- [Refactor] `parse`: cache index to reuse in else statement (#182)
+- [Docs] add various badges to readme (#208)
+- [Dev Deps] update `eslint`, `browserify`, `iconv-lite`, `tape`
+- [Tests] up to `node` `v8.1`, `v7.10`, `v6.11`; npm v4.6 breaks on node < v1; npm v5+ breaks on node < v4
+- [Tests] add `editorconfig-tools`
+
+## **6.4.1**
+- [Fix] `parse`: ignore `__proto__` keys (#428)
+- [Fix] fix for an impossible situation: when the formatter is called with a non-string value
+- [Fix] use `safer-buffer` instead of `Buffer` constructor
+- [Fix] `utils.merge`: avoid a crash with a null target and an array source
+- [Fix] `utils.merge`: avoid a crash with a null target and a truthy non-array source
+- [Fix] `stringify`: fix a crash with `strictNullHandling` and a custom `filter`/`serializeDate` (#279)
+- [Fix] `utils`: `merge`: fix crash when `source` is a truthy primitive & no options are provided
+- [Fix] when `parseArrays` is false, properly handle keys ending in `[]`
+- [Robustness] `stringify`: avoid relying on a global `undefined` (#427)
+- [Refactor] use cached `Array.isArray`
+- [Refactor] `stringify`: Avoid arr = arr.concat(...), push to the existing instance (#269)
+- [readme] remove travis badge; add github actions/codecov badges; update URLs
+- [Docs] Clarify the need for "arrayLimit" option
+- [meta] fix README.md (#399)
+- [meta] Clean up license text so it’s properly detected as BSD-3-Clause
+- [meta] add FUNDING.yml
+- [actions] backport actions from main
+- [Tests] remove nonexistent tape option
+- [Dev Deps] backport from main
+
+## **6.4.0**
+- [New] `qs.stringify`: add `encodeValuesOnly` option
+- [Fix] follow `allowPrototypes` option during merge (#201, #201)
+- [Fix] support keys starting with brackets (#202, #200)
+- [Fix] chmod a-x
+- [Dev Deps] update `eslint`
+- [Tests] up to `node` `v7.7`, `v6.10`,` v4.8`; disable osx builds since they block linux builds
+- [eslint] reduce warnings
+
+## **6.3.3**
+- [Fix] `parse`: ignore `__proto__` keys (#428)
+- [Fix] fix for an impossible situation: when the formatter is called with a non-string value
+- [Fix] `utils.merge`: avoid a crash with a null target and an array source
+- [Fix] `utils.merge`: avoid a crash with a null target and a truthy non-array source
+- [Fix] `stringify`: fix a crash with `strictNullHandling` and a custom `filter`/`serializeDate` (#279)
+- [Fix] `utils`: `merge`: fix crash when `source` is a truthy primitive & no options are provided
+- [Fix] when `parseArrays` is false, properly handle keys ending in `[]`
+- [Robustness] `stringify`: avoid relying on a global `undefined` (#427)
+- [Refactor] use cached `Array.isArray`
+- [Refactor] `stringify`: Avoid arr = arr.concat(...), push to the existing instance (#269)
+- [Docs] Clarify the need for "arrayLimit" option
+- [meta] fix README.md (#399)
+- [meta] Clean up license text so it’s properly detected as BSD-3-Clause
+- [meta] add FUNDING.yml
+- [actions] backport actions from main
+- [Tests] use `safer-buffer` instead of `Buffer` constructor
+- [Tests] remove nonexistent tape option
+- [Dev Deps] backport from main
+
+## **6.3.2**
+- [Fix] follow `allowPrototypes` option during merge (#201, #200)
+- [Dev Deps] update `eslint`
+- [Fix] chmod a-x
+- [Fix] support keys starting with brackets (#202, #200)
+- [Tests] up to `node` `v7.7`, `v6.10`,` v4.8`; disable osx builds since they block linux builds
+
+## **6.3.1**
+- [Fix] ensure that `allowPrototypes: false` does not ever shadow Object.prototype properties (thanks, @snyk!)
+- [Dev Deps] update `eslint`, `@ljharb/eslint-config`, `browserify`, `iconv-lite`, `qs-iconv`, `tape`
+- [Tests] on all node minors; improve test matrix
+- [Docs] document stringify option `allowDots` (#195)
+- [Docs] add empty object and array values example (#195)
+- [Docs] Fix minor inconsistency/typo (#192)
+- [Docs] document stringify option `sort` (#191)
+- [Refactor] `stringify`: throw faster with an invalid encoder
+- [Refactor] remove unnecessary escapes (#184)
+- Remove contributing.md, since `qs` is no longer part of `hapi` (#183)
+
+## **6.3.0**
+- [New] Add support for RFC 1738 (#174, #173)
+- [New] `stringify`: Add `serializeDate` option to customize Date serialization (#159)
+- [Fix] ensure `utils.merge` handles merging two arrays
+- [Refactor] only constructors should be capitalized
+- [Refactor] capitalized var names are for constructors only
+- [Refactor] avoid using a sparse array
+- [Robustness] `formats`: cache `String#replace`
+- [Dev Deps] update `browserify`, `eslint`, `@ljharb/eslint-config`; add `safe-publish-latest`
+- [Tests] up to `node` `v6.8`, `v4.6`; improve test matrix
+- [Tests] flesh out arrayLimit/arrayFormat tests (#107)
+- [Tests] skip Object.create tests when null objects are not available
+- [Tests] Turn on eslint for test files (#175)
+
+## **6.2.4**
+- [Fix] `parse`: ignore `__proto__` keys (#428)
+- [Fix] `utils.merge`: avoid a crash with a null target and an array source
+- [Fix] `utils.merge`: avoid a crash with a null target and a truthy non-array source
+- [Fix] `utils`: `merge`: fix crash when `source` is a truthy primitive & no options are provided
+- [Fix] when `parseArrays` is false, properly handle keys ending in `[]`
+- [Robustness] `stringify`: avoid relying on a global `undefined` (#427)
+- [Refactor] use cached `Array.isArray`
+- [Docs] Clarify the need for "arrayLimit" option
+- [meta] fix README.md (#399)
+- [meta] Clean up license text so it’s properly detected as BSD-3-Clause
+- [meta] add FUNDING.yml
+- [actions] backport actions from main
+- [Tests] use `safer-buffer` instead of `Buffer` constructor
+- [Tests] remove nonexistent tape option
+- [Dev Deps] backport from main
+
+## **6.2.3**
+- [Fix] follow `allowPrototypes` option during merge (#201, #200)
+- [Fix] chmod a-x
+- [Fix] support keys starting with brackets (#202, #200)
+- [Tests] up to `node` `v7.7`, `v6.10`,` v4.8`; disable osx builds since they block linux builds
+
+## **6.2.2**
+- [Fix] ensure that `allowPrototypes: false` does not ever shadow Object.prototype properties
+
+## **6.2.1**
+- [Fix] ensure `key[]=x&key[]&key[]=y` results in 3, not 2, values
+- [Refactor] Be explicit and use `Object.prototype.hasOwnProperty.call`
+- [Tests] remove `parallelshell` since it does not reliably report failures
+- [Tests] up to `node` `v6.3`, `v5.12`
+- [Dev Deps] update `tape`, `eslint`, `@ljharb/eslint-config`, `qs-iconv`
+
+## [**6.2.0**](https://github.com/ljharb/qs/issues?milestone=36&state=closed)
+- [New] pass Buffers to the encoder/decoder directly (#161)
+- [New] add "encoder" and "decoder" options, for custom param encoding/decoding (#160)
+- [Fix] fix compacting of nested sparse arrays (#150)
+
+## **6.1.2**
+- [Fix] follow `allowPrototypes` option during merge (#201, #200)
+- [Fix] chmod a-x
+- [Fix] support keys starting with brackets (#202, #200)
+- [Tests] up to `node` `v7.7`, `v6.10`,` v4.8`; disable osx builds since they block linux builds
+
+## **6.1.1**
+- [Fix] ensure that `allowPrototypes: false` does not ever shadow Object.prototype properties
+
+## [**6.1.0**](https://github.com/ljharb/qs/issues?milestone=35&state=closed)
+- [New] allowDots option for `stringify` (#151)
+- [Fix] "sort" option should work at a depth of 3 or more (#151)
+- [Fix] Restore `dist` directory; will be removed in v7 (#148)
+
+## **6.0.4**
+- [Fix] follow `allowPrototypes` option during merge (#201, #200)
+- [Fix] chmod a-x
+- [Fix] support keys starting with brackets (#202, #200)
+- [Tests] up to `node` `v7.7`, `v6.10`,` v4.8`; disable osx builds since they block linux builds
+
+## **6.0.3**
+- [Fix] ensure that `allowPrototypes: false` does not ever shadow Object.prototype properties
+- [Fix] Restore `dist` directory; will be removed in v7 (#148)
+
+## [**6.0.2**](https://github.com/ljharb/qs/issues?milestone=33&state=closed)
+- Revert ES6 requirement and restore support for node down to v0.8.
+
+## [**6.0.1**](https://github.com/ljharb/qs/issues?milestone=32&state=closed)
+- [**#127**](https://github.com/ljharb/qs/pull/127) Fix engines definition in package.json
+
+## [**6.0.0**](https://github.com/ljharb/qs/issues?milestone=31&state=closed)
+- [**#124**](https://github.com/ljharb/qs/issues/124) Use ES6 and drop support for node < v4
+
+## **5.2.1**
+- [Fix] ensure `key[]=x&key[]&key[]=y` results in 3, not 2, values
+
+## [**5.2.0**](https://github.com/ljharb/qs/issues?milestone=30&state=closed)
+- [**#64**](https://github.com/ljharb/qs/issues/64) Add option to sort object keys in the query string
+
+## [**5.1.0**](https://github.com/ljharb/qs/issues?milestone=29&state=closed)
+- [**#117**](https://github.com/ljharb/qs/issues/117) make URI encoding stringified results optional
+- [**#106**](https://github.com/ljharb/qs/issues/106) Add flag `skipNulls` to optionally skip null values in stringify
+
+## [**5.0.0**](https://github.com/ljharb/qs/issues?milestone=28&state=closed)
+- [**#114**](https://github.com/ljharb/qs/issues/114) default allowDots to false
+- [**#100**](https://github.com/ljharb/qs/issues/100) include dist to npm
+
+## [**4.0.0**](https://github.com/ljharb/qs/issues?milestone=26&state=closed)
+- [**#98**](https://github.com/ljharb/qs/issues/98) make returning plain objects and allowing prototype overwriting properties optional
+
+## [**3.1.0**](https://github.com/ljharb/qs/issues?milestone=24&state=closed)
+- [**#89**](https://github.com/ljharb/qs/issues/89) Add option to disable "Transform dot notation to bracket notation"
+
+## [**3.0.0**](https://github.com/ljharb/qs/issues?milestone=23&state=closed)
+- [**#80**](https://github.com/ljharb/qs/issues/80) qs.parse silently drops properties
+- [**#77**](https://github.com/ljharb/qs/issues/77) Perf boost
+- [**#60**](https://github.com/ljharb/qs/issues/60) Add explicit option to disable array parsing
+- [**#74**](https://github.com/ljharb/qs/issues/74) Bad parse when turning array into object
+- [**#81**](https://github.com/ljharb/qs/issues/81) Add a `filter` option
+- [**#68**](https://github.com/ljharb/qs/issues/68) Fixed issue with recursion and passing strings into objects.
+- [**#66**](https://github.com/ljharb/qs/issues/66) Add mixed array and object dot notation support Closes: #47
+- [**#76**](https://github.com/ljharb/qs/issues/76) RFC 3986
+- [**#85**](https://github.com/ljharb/qs/issues/85) No equal sign
+- [**#84**](https://github.com/ljharb/qs/issues/84) update license attribute
+
+## [**2.4.1**](https://github.com/ljharb/qs/issues?milestone=20&state=closed)
+- [**#73**](https://github.com/ljharb/qs/issues/73) Property 'hasOwnProperty' of object #<Object> is not a function
+
+## [**2.4.0**](https://github.com/ljharb/qs/issues?milestone=19&state=closed)
+- [**#70**](https://github.com/ljharb/qs/issues/70) Add arrayFormat option
+
+## [**2.3.3**](https://github.com/ljharb/qs/issues?milestone=18&state=closed)
+- [**#59**](https://github.com/ljharb/qs/issues/59) make sure array indexes are >= 0, closes #57
+- [**#58**](https://github.com/ljharb/qs/issues/58) make qs usable for browser loader
+
+## [**2.3.2**](https://github.com/ljharb/qs/issues?milestone=17&state=closed)
+- [**#55**](https://github.com/ljharb/qs/issues/55) allow merging a string into an object
+
+## [**2.3.1**](https://github.com/ljharb/qs/issues?milestone=16&state=closed)
+- [**#52**](https://github.com/ljharb/qs/issues/52) Return "undefined" and "false" instead of throwing "TypeError".
+
+## [**2.3.0**](https://github.com/ljharb/qs/issues?milestone=15&state=closed)
+- [**#50**](https://github.com/ljharb/qs/issues/50) add option to omit array indices, closes #46
+
+## [**2.2.5**](https://github.com/ljharb/qs/issues?milestone=14&state=closed)
+- [**#39**](https://github.com/ljharb/qs/issues/39) Is there an alternative to Buffer.isBuffer?
+- [**#49**](https://github.com/ljharb/qs/issues/49) refactor utils.merge, fixes #45
+- [**#41**](https://github.com/ljharb/qs/issues/41) avoid browserifying Buffer, for #39
+
+## [**2.2.4**](https://github.com/ljharb/qs/issues?milestone=13&state=closed)
+- [**#38**](https://github.com/ljharb/qs/issues/38) how to handle object keys beginning with a number
+
+## [**2.2.3**](https://github.com/ljharb/qs/issues?milestone=12&state=closed)
+- [**#37**](https://github.com/ljharb/qs/issues/37) parser discards first empty value in array
+- [**#36**](https://github.com/ljharb/qs/issues/36) Update to lab 4.x
+
+## [**2.2.2**](https://github.com/ljharb/qs/issues?milestone=11&state=closed)
+- [**#33**](https://github.com/ljharb/qs/issues/33) Error when plain object in a value
+- [**#34**](https://github.com/ljharb/qs/issues/34) use Object.prototype.hasOwnProperty.call instead of obj.hasOwnProperty
+- [**#24**](https://github.com/ljharb/qs/issues/24) Changelog? Semver?
+
+## [**2.2.1**](https://github.com/ljharb/qs/issues?milestone=10&state=closed)
+- [**#32**](https://github.com/ljharb/qs/issues/32) account for circular references properly, closes #31
+- [**#31**](https://github.com/ljharb/qs/issues/31) qs.parse stackoverflow on circular objects
+
+## [**2.2.0**](https://github.com/ljharb/qs/issues?milestone=9&state=closed)
+- [**#26**](https://github.com/ljharb/qs/issues/26) Don't use Buffer global if it's not present
+- [**#30**](https://github.com/ljharb/qs/issues/30) Bug when merging non-object values into arrays
+- [**#29**](https://github.com/ljharb/qs/issues/29) Don't call Utils.clone at the top of Utils.merge
+- [**#23**](https://github.com/ljharb/qs/issues/23) Ability to not limit parameters?
+
+## [**2.1.0**](https://github.com/ljharb/qs/issues?milestone=8&state=closed)
+- [**#22**](https://github.com/ljharb/qs/issues/22) Enable using a RegExp as delimiter
+
+## [**2.0.0**](https://github.com/ljharb/qs/issues?milestone=7&state=closed)
+- [**#18**](https://github.com/ljharb/qs/issues/18) Why is there arrayLimit?
+- [**#20**](https://github.com/ljharb/qs/issues/20) Configurable parametersLimit
+- [**#21**](https://github.com/ljharb/qs/issues/21) make all limits optional, for #18, for #20
+
+## [**1.2.2**](https://github.com/ljharb/qs/issues?milestone=6&state=closed)
+- [**#19**](https://github.com/ljharb/qs/issues/19) Don't overwrite null values
+
+## [**1.2.1**](https://github.com/ljharb/qs/issues?milestone=5&state=closed)
+- [**#16**](https://github.com/ljharb/qs/issues/16) ignore non-string delimiters
+- [**#15**](https://github.com/ljharb/qs/issues/15) Close code block
+
+## [**1.2.0**](https://github.com/ljharb/qs/issues?milestone=4&state=closed)
+- [**#12**](https://github.com/ljharb/qs/issues/12) Add optional delim argument
+- [**#13**](https://github.com/ljharb/qs/issues/13) fix #11: flattened keys in array are now correctly parsed
+
+## [**1.1.0**](https://github.com/ljharb/qs/issues?milestone=3&state=closed)
+- [**#7**](https://github.com/ljharb/qs/issues/7) Empty values of a POST array disappear after being submitted
+- [**#9**](https://github.com/ljharb/qs/issues/9) Should not omit equals signs (=) when value is null
+- [**#6**](https://github.com/ljharb/qs/issues/6) Minor grammar fix in README
+
+## [**1.0.2**](https://github.com/ljharb/qs/issues?milestone=2&state=closed)
+- [**#5**](https://github.com/ljharb/qs/issues/5) array holes incorrectly copied into object on large index
diff --git a/backend/node_modules/qs/LICENSE.md b/backend/node_modules/qs/LICENSE.md
new file mode 100644
index 0000000..fecf6b6
--- /dev/null
+++ b/backend/node_modules/qs/LICENSE.md
@@ -0,0 +1,29 @@
+BSD 3-Clause License
+
+Copyright (c) 2014, Nathan LaFreniere and other [contributors](https://github.com/ljharb/qs/graphs/contributors)
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are met:
+
+1. Redistributions of source code must retain the above copyright notice, this
+   list of conditions and the following disclaimer.
+
+2. Redistributions in binary form must reproduce the above copyright notice,
+   this list of conditions and the following disclaimer in the documentation
+   and/or other materials provided with the distribution.
+
+3. Neither the name of the copyright holder nor the names of its
+   contributors may be used to endorse or promote products derived from
+   this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
diff --git a/backend/node_modules/qs/README.md b/backend/node_modules/qs/README.md
new file mode 100644
index 0000000..22c411d
--- /dev/null
+++ b/backend/node_modules/qs/README.md
@@ -0,0 +1,733 @@
+<p align="center">
+    <img alt="qs" src="./logos/banner_default.png" width="800" />
+</p>
+
+# qs <sup>[![Version Badge][npm-version-svg]][package-url]</sup>
+
+[![github actions][actions-image]][actions-url]
+[![coverage][codecov-image]][codecov-url]
+[![License][license-image]][license-url]
+[![Downloads][downloads-image]][downloads-url]
+[![CII Best Practices](https://bestpractices.coreinfrastructure.org/projects/9058/badge)](https://bestpractices.coreinfrastructure.org/projects/9058)
+
+[![npm badge][npm-badge-png]][package-url]
+
+A querystring parsing and stringifying library with some added security.
+
+Lead Maintainer: [Jordan Harband](https://github.com/ljharb)
+
+The **qs** module was originally created and maintained by [TJ Holowaychuk](https://github.com/visionmedia/node-querystring).
+
+## Usage
+
+```javascript
+var qs = require('qs');
+var assert = require('assert');
+
+var obj = qs.parse('a=c');
+assert.deepEqual(obj, { a: 'c' });
+
+var str = qs.stringify(obj);
+assert.equal(str, 'a=c');
+```
+
+### Parsing Objects
+
+[](#preventEval)
+```javascript
+qs.parse(string, [options]);
+```
+
+**qs** allows you to create nested objects within your query strings, by surrounding the name of sub-keys with square brackets `[]`.
+For example, the string `'foo[bar]=baz'` converts to:
+
+```javascript
+assert.deepEqual(qs.parse('foo[bar]=baz'), {
+    foo: {
+        bar: 'baz'
+    }
+});
+```
+
+When using the `plainObjects` option the parsed value is returned as a null object, created via `{ __proto__: null }` and as such you should be aware that prototype methods will not exist on it and a user may set those names to whatever value they like:
+
+```javascript
+var nullObject = qs.parse('a[hasOwnProperty]=b', { plainObjects: true });
+assert.deepEqual(nullObject, { a: { hasOwnProperty: 'b' } });
+```
+
+By default parameters that would overwrite properties on the object prototype are ignored, if you wish to keep the data from those fields either use `plainObjects` as mentioned above, or set `allowPrototypes` to `true` which will allow user input to overwrite those properties.
+*WARNING* It is generally a bad idea to enable this option as it can cause problems when attempting to use the properties that have been overwritten.
+Always be careful with this option.
+
+```javascript
+var protoObject = qs.parse('a[hasOwnProperty]=b', { allowPrototypes: true });
+assert.deepEqual(protoObject, { a: { hasOwnProperty: 'b' } });
+```
+
+URI encoded strings work too:
+
+```javascript
+assert.deepEqual(qs.parse('a%5Bb%5D=c'), {
+    a: { b: 'c' }
+});
+```
+
+You can also nest your objects, like `'foo[bar][baz]=foobarbaz'`:
+
+```javascript
+assert.deepEqual(qs.parse('foo[bar][baz]=foobarbaz'), {
+    foo: {
+        bar: {
+            baz: 'foobarbaz'
+        }
+    }
+});
+```
+
+By default, when nesting objects **qs** will only parse up to 5 children deep.
+This means if you attempt to parse a string like `'a[b][c][d][e][f][g][h][i]=j'` your resulting object will be:
+
+```javascript
+var expected = {
+    a: {
+        b: {
+            c: {
+                d: {
+                    e: {
+                        f: {
+                            '[g][h][i]': 'j'
+                        }
+                    }
+                }
+            }
+        }
+    }
+};
+var string = 'a[b][c][d][e][f][g][h][i]=j';
+assert.deepEqual(qs.parse(string), expected);
+```
+
+This depth can be overridden by passing a `depth` option to `qs.parse(string, [options])`:
+
+```javascript
+var deep = qs.parse('a[b][c][d][e][f][g][h][i]=j', { depth: 1 });
+assert.deepEqual(deep, { a: { b: { '[c][d][e][f][g][h][i]': 'j' } } });
+```
+
+You can configure **qs** to throw an error when parsing nested input beyond this depth using the `strictDepth` option (defaulted to false):
+
+```javascript
+try {
+    qs.parse('a[b][c][d][e][f][g][h][i]=j', { depth: 1, strictDepth: true });
+} catch (err) {
+    assert(err instanceof RangeError);
+    assert.strictEqual(err.message, 'Input depth exceeded depth option of 1 and strictDepth is true');
+}
+```
+
+The depth limit helps mitigate abuse when **qs** is used to parse user input, and it is recommended to keep it a reasonably small number. The strictDepth option adds a layer of protection by throwing an error when the limit is exceeded, allowing you to catch and handle such cases.
+
+For similar reasons, by default **qs** will only parse up to 1000 parameters. This can be overridden by passing a `parameterLimit` option:
+
+```javascript
+var limited = qs.parse('a=b&c=d', { parameterLimit: 1 });
+assert.deepEqual(limited, { a: 'b' });
+```
+
+If you want an error to be thrown whenever the a limit is exceeded (eg, `parameterLimit`, `arrayLimit`), set the `throwOnLimitExceeded` option to `true`. This option will generate a descriptive error if the query string exceeds a configured limit.
+```javascript
+try {
+    qs.parse('a=1&b=2&c=3&d=4', { parameterLimit: 3, throwOnLimitExceeded: true });
+} catch (err) {
+    assert(err instanceof Error);
+    assert.strictEqual(err.message, 'Parameter limit exceeded. Only 3 parameters allowed.');
+}
+```
+
+When `throwOnLimitExceeded` is set to `false` (default), **qs** will parse up to the specified `parameterLimit` and ignore the rest without throwing an error.
+
+To bypass the leading question mark, use `ignoreQueryPrefix`:
+
+```javascript
+var prefixed = qs.parse('?a=b&c=d', { ignoreQueryPrefix: true });
+assert.deepEqual(prefixed, { a: 'b', c: 'd' });
+```
+
+An optional delimiter can also be passed:
+
+```javascript
+var delimited = qs.parse('a=b;c=d', { delimiter: ';' });
+assert.deepEqual(delimited, { a: 'b', c: 'd' });
+```
+
+Delimiters can be a regular expression too:
+
+```javascript
+var regexed = qs.parse('a=b;c=d,e=f', { delimiter: /[;,]/ });
+assert.deepEqual(regexed, { a: 'b', c: 'd', e: 'f' });
+```
+
+Option `allowDots` can be used to enable dot notation:
+
+```javascript
+var withDots = qs.parse('a.b=c', { allowDots: true });
+assert.deepEqual(withDots, { a: { b: 'c' } });
+```
+
+Option `decodeDotInKeys` can be used to decode dots in keys
+Note: it implies `allowDots`, so `parse` will error if you set `decodeDotInKeys` to `true`, and `allowDots` to `false`.
+
+```javascript
+var withDots = qs.parse('name%252Eobj.first=John&name%252Eobj.last=Doe', { decodeDotInKeys: true });
+assert.deepEqual(withDots, { 'name.obj': { first: 'John', last: 'Doe' }});
+```
+
+Option `allowEmptyArrays` can be used to allowing empty array values in object
+```javascript
+var withEmptyArrays = qs.parse('foo[]&bar=baz', { allowEmptyArrays: true });
+assert.deepEqual(withEmptyArrays, { foo: [], bar: 'baz' });
+```
+
+Option `duplicates` can be used to change the behavior when duplicate keys are encountered
+```javascript
+assert.deepEqual(qs.parse('foo=bar&foo=baz'), { foo: ['bar', 'baz'] });
+assert.deepEqual(qs.parse('foo=bar&foo=baz', { duplicates: 'combine' }), { foo: ['bar', 'baz'] });
+assert.deepEqual(qs.parse('foo=bar&foo=baz', { duplicates: 'first' }), { foo: 'bar' });
+assert.deepEqual(qs.parse('foo=bar&foo=baz', { duplicates: 'last' }), { foo: 'baz' });
+```
+
+If you have to deal with legacy browsers or services, there's also support for decoding percent-encoded octets as iso-8859-1:
+
+```javascript
+var oldCharset = qs.parse('a=%A7', { charset: 'iso-8859-1' });
+assert.deepEqual(oldCharset, { a: '§' });
+```
+
+Some services add an initial `utf8=✓` value to forms so that old Internet Explorer versions are more likely to submit the form as utf-8.
+Additionally, the server can check the value against wrong encodings of the checkmark character and detect that a query string or `application/x-www-form-urlencoded` body was *not* sent as utf-8, eg. if the form had an `accept-charset` parameter or the containing page had a different character set.
+
+**qs** supports this mechanism via the `charsetSentinel` option.
+If specified, the `utf8` parameter will be omitted from the returned object.
+It will be used to switch to `iso-8859-1`/`utf-8` mode depending on how the checkmark is encoded.
+
+**Important**: When you specify both the `charset` option and the `charsetSentinel` option, the `charset` will be overridden when the request contains a `utf8` parameter from which the actual charset can be deduced.
+In that sense the `charset` will behave as the default charset rather than the authoritative charset.
+
+```javascript
+var detectedAsUtf8 = qs.parse('utf8=%E2%9C%93&a=%C3%B8', {
+    charset: 'iso-8859-1',
+    charsetSentinel: true
+});
+assert.deepEqual(detectedAsUtf8, { a: 'ø' });
+
+// Browsers encode the checkmark as &#10003; when submitting as iso-8859-1:
+var detectedAsIso8859_1 = qs.parse('utf8=%26%2310003%3B&a=%F8', {
+    charset: 'utf-8',
+    charsetSentinel: true
+});
+assert.deepEqual(detectedAsIso8859_1, { a: 'ø' });
+```
+
+If you want to decode the `&#...;` syntax to the actual character, you can specify the `interpretNumericEntities` option as well:
+
+```javascript
+var detectedAsIso8859_1 = qs.parse('a=%26%239786%3B', {
+    charset: 'iso-8859-1',
+    interpretNumericEntities: true
+});
+assert.deepEqual(detectedAsIso8859_1, { a: '☺' });
+```
+
+It also works when the charset has been detected in `charsetSentinel` mode.
+
+### Parsing Arrays
+
+**qs** can also parse arrays using a similar `[]` notation:
+
+```javascript
+var withArray = qs.parse('a[]=b&a[]=c');
+assert.deepEqual(withArray, { a: ['b', 'c'] });
+```
+
+You may specify an index as well:
+
+```javascript
+var withIndexes = qs.parse('a[1]=c&a[0]=b');
+assert.deepEqual(withIndexes, { a: ['b', 'c'] });
+```
+
+Note that the only difference between an index in an array and a key in an object is that the value between the brackets must be a number to create an array.
+When creating arrays with specific indices, **qs** will compact a sparse array to only the existing values preserving their order:
+
+```javascript
+var noSparse = qs.parse('a[1]=b&a[15]=c');
+assert.deepEqual(noSparse, { a: ['b', 'c'] });
+```
+
+You may also use `allowSparse` option to parse sparse arrays:
+
+```javascript
+var sparseArray = qs.parse('a[1]=2&a[3]=5', { allowSparse: true });
+assert.deepEqual(sparseArray, { a: [, '2', , '5'] });
+```
+
+Note that an empty string is also a value, and will be preserved:
+
+```javascript
+var withEmptyString = qs.parse('a[]=&a[]=b');
+assert.deepEqual(withEmptyString, { a: ['', 'b'] });
+
+var withIndexedEmptyString = qs.parse('a[0]=b&a[1]=&a[2]=c');
+assert.deepEqual(withIndexedEmptyString, { a: ['b', '', 'c'] });
+```
+
+**qs** will also limit specifying indices in an array to a maximum index of `20`.
+Any array members with an index of greater than `20` will instead be converted to an object with the index as the key.
+This is needed to handle cases when someone sent, for example, `a[999999999]` and it will take significant time to iterate over this huge array.
+
+```javascript
+var withMaxIndex = qs.parse('a[100]=b');
+assert.deepEqual(withMaxIndex, { a: { '100': 'b' } });
+```
+
+This limit can be overridden by passing an `arrayLimit` option:
+
+```javascript
+var withArrayLimit = qs.parse('a[1]=b', { arrayLimit: 0 });
+assert.deepEqual(withArrayLimit, { a: { '1': 'b' } });
+```
+
+If you want to throw an error whenever the array limit is exceeded, set the `throwOnLimitExceeded` option to `true`. This option will generate a descriptive error if the query string exceeds a configured limit.
+```javascript
+try {
+    qs.parse('a[1]=b', { arrayLimit: 0, throwOnLimitExceeded: true });
+} catch (err) {
+    assert(err instanceof Error);
+    assert.strictEqual(err.message, 'Array limit exceeded. Only 0 elements allowed in an array.');
+}
+```
+
+When `throwOnLimitExceeded` is set to `false` (default), **qs** will parse up to the specified `arrayLimit` and if the limit is exceeded, the array will instead be converted to an object with the index as the key
+
+To disable array parsing entirely, set `parseArrays` to `false`.
+
+```javascript
+var noParsingArrays = qs.parse('a[]=b', { parseArrays: false });
+assert.deepEqual(noParsingArrays, { a: { '0': 'b' } });
+```
+
+If you mix notations, **qs** will merge the two items into an object:
+
+```javascript
+var mixedNotation = qs.parse('a[0]=b&a[b]=c');
+assert.deepEqual(mixedNotation, { a: { '0': 'b', b: 'c' } });
+```
+
+You can also create arrays of objects:
+
+```javascript
+var arraysOfObjects = qs.parse('a[][b]=c');
+assert.deepEqual(arraysOfObjects, { a: [{ b: 'c' }] });
+```
+
+Some people use comma to join array, **qs** can parse it:
+```javascript
+var arraysOfObjects = qs.parse('a=b,c', { comma: true })
+assert.deepEqual(arraysOfObjects, { a: ['b', 'c'] })
+```
+(_this cannot convert nested objects, such as `a={b:1},{c:d}`_)
+
+### Parsing primitive/scalar values (numbers, booleans, null, etc)
+
+By default, all values are parsed as strings.
+This behavior will not change and is explained in [issue #91](https://github.com/ljharb/qs/issues/91).
+
+```javascript
+var primitiveValues = qs.parse('a=15&b=true&c=null');
+assert.deepEqual(primitiveValues, { a: '15', b: 'true', c: 'null' });
+```
+
+If you wish to auto-convert values which look like numbers, booleans, and other values into their primitive counterparts, you can use the [query-types Express JS middleware](https://github.com/xpepermint/query-types) which will auto-convert all request query parameters.
+
+### Stringifying
+
+[](#preventEval)
+```javascript
+qs.stringify(object, [options]);
+```
+
+When stringifying, **qs** by default URI encodes output. Objects are stringified as you would expect:
+
+```javascript
+assert.equal(qs.stringify({ a: 'b' }), 'a=b');
+assert.equal(qs.stringify({ a: { b: 'c' } }), 'a%5Bb%5D=c');
+```
+
+This encoding can be disabled by setting the `encode` option to `false`:
+
+```javascript
+var unencoded = qs.stringify({ a: { b: 'c' } }, { encode: false });
+assert.equal(unencoded, 'a[b]=c');
+```
+
+Encoding can be disabled for keys by setting the `encodeValuesOnly` option to `true`:
+```javascript
+var encodedValues = qs.stringify(
+    { a: 'b', c: ['d', 'e=f'], f: [['g'], ['h']] },
+    { encodeValuesOnly: true }
+);
+assert.equal(encodedValues,'a=b&c[0]=d&c[1]=e%3Df&f[0][0]=g&f[1][0]=h');
+```
+
+This encoding can also be replaced by a custom encoding method set as `encoder` option:
+
+```javascript
+var encoded = qs.stringify({ a: { b: 'c' } }, { encoder: function (str) {
+    // Passed in values `a`, `b`, `c`
+    return // Return encoded string
+}})
+```
+
+_(Note: the `encoder` option does not apply if `encode` is `false`)_
+
+Analogue to the `encoder` there is a `decoder` option for `parse` to override decoding of properties and values:
+
+```javascript
+var decoded = qs.parse('x=z', { decoder: function (str) {
+    // Passed in values `x`, `z`
+    return // Return decoded string
+}})
+```
+
+You can encode keys and values using different logic by using the type argument provided to the encoder:
+
+```javascript
+var encoded = qs.stringify({ a: { b: 'c' } }, { encoder: function (str, defaultEncoder, charset, type) {
+    if (type === 'key') {
+        return // Encoded key
+    } else if (type === 'value') {
+        return // Encoded value
+    }
+}})
+```
+
+The type argument is also provided to the decoder:
+
+```javascript
+var decoded = qs.parse('x=z', { decoder: function (str, defaultDecoder, charset, type) {
+    if (type === 'key') {
+        return // Decoded key
+    } else if (type === 'value') {
+        return // Decoded value
+    }
+}})
+```
+
+Examples beyond this point will be shown as though the output is not URI encoded for clarity.
+Please note that the return values in these cases *will* be URI encoded during real usage.
+
+When arrays are stringified, they follow the `arrayFormat` option, which defaults to `indices`:
+
+```javascript
+qs.stringify({ a: ['b', 'c', 'd'] });
+// 'a[0]=b&a[1]=c&a[2]=d'
+```
+
+You may override this by setting the `indices` option to `false`, or to be more explicit, the `arrayFormat` option to `repeat`:
+
+```javascript
+qs.stringify({ a: ['b', 'c', 'd'] }, { indices: false });
+// 'a=b&a=c&a=d'
+```
+
+You may use the `arrayFormat` option to specify the format of the output array:
+
+```javascript
+qs.stringify({ a: ['b', 'c'] }, { arrayFormat: 'indices' })
+// 'a[0]=b&a[1]=c'
+qs.stringify({ a: ['b', 'c'] }, { arrayFormat: 'brackets' })
+// 'a[]=b&a[]=c'
+qs.stringify({ a: ['b', 'c'] }, { arrayFormat: 'repeat' })
+// 'a=b&a=c'
+qs.stringify({ a: ['b', 'c'] }, { arrayFormat: 'comma' })
+// 'a=b,c'
+```
+
+Note: when using `arrayFormat` set to `'comma'`, you can also pass the `commaRoundTrip` option set to `true` or `false`, to append `[]` on single-item arrays, so that they can round trip through a parse.
+
+When objects are stringified, by default they use bracket notation:
+
+```javascript
+qs.stringify({ a: { b: { c: 'd', e: 'f' } } });
+// 'a[b][c]=d&a[b][e]=f'
+```
+
+You may override this to use dot notation by setting the `allowDots` option to `true`:
+
+```javascript
+qs.stringify({ a: { b: { c: 'd', e: 'f' } } }, { allowDots: true });
+// 'a.b.c=d&a.b.e=f'
+```
+
+You may encode the dot notation in the keys of object with option `encodeDotInKeys` by setting it to `true`:
+Note: it implies `allowDots`, so `stringify` will error if you set `decodeDotInKeys` to `true`, and `allowDots` to `false`.
+Caveat: when `encodeValuesOnly` is `true` as well as `encodeDotInKeys`, only dots in keys and nothing else will be encoded.
+```javascript
+qs.stringify({ "name.obj": { "first": "John", "last": "Doe" } }, { allowDots: true, encodeDotInKeys: true })
+// 'name%252Eobj.first=John&name%252Eobj.last=Doe'
+```
+
+You may allow empty array values by setting the `allowEmptyArrays` option to `true`:
+```javascript
+qs.stringify({ foo: [], bar: 'baz' }, { allowEmptyArrays: true });
+// 'foo[]&bar=baz'
+```
+
+Empty strings and null values will omit the value, but the equals sign (=) remains in place:
+
+```javascript
+assert.equal(qs.stringify({ a: '' }), 'a=');
+```
+
+Key with no values (such as an empty object or array) will return nothing:
+
+```javascript
+assert.equal(qs.stringify({ a: [] }), '');
+assert.equal(qs.stringify({ a: {} }), '');
+assert.equal(qs.stringify({ a: [{}] }), '');
+assert.equal(qs.stringify({ a: { b: []} }), '');
+assert.equal(qs.stringify({ a: { b: {}} }), '');
+```
+
+Properties that are set to `undefined` will be omitted entirely:
+
+```javascript
+assert.equal(qs.stringify({ a: null, b: undefined }), 'a=');
+```
+
+The query string may optionally be prepended with a question mark:
+
+```javascript
+assert.equal(qs.stringify({ a: 'b', c: 'd' }, { addQueryPrefix: true }), '?a=b&c=d');
+```
+
+The delimiter may be overridden with stringify as well:
+
+```javascript
+assert.equal(qs.stringify({ a: 'b', c: 'd' }, { delimiter: ';' }), 'a=b;c=d');
+```
+
+If you only want to override the serialization of `Date` objects, you can provide a `serializeDate` option:
+
+```javascript
+var date = new Date(7);
+assert.equal(qs.stringify({ a: date }), 'a=1970-01-01T00:00:00.007Z'.replace(/:/g, '%3A'));
+assert.equal(
+    qs.stringify({ a: date }, { serializeDate: function (d) { return d.getTime(); } }),
+    'a=7'
+);
+```
+
+You may use the `sort` option to affect the order of parameter keys:
+
+```javascript
+function alphabeticalSort(a, b) {
+    return a.localeCompare(b);
+}
+assert.equal(qs.stringify({ a: 'c', z: 'y', b : 'f' }, { sort: alphabeticalSort }), 'a=c&b=f&z=y');
+```
+
+Finally, you can use the `filter` option to restrict which keys will be included in the stringified output.
+If you pass a function, it will be called for each key to obtain the replacement value.
+Otherwise, if you pass an array, it will be used to select properties and array indices for stringification:
+
+```javascript
+function filterFunc(prefix, value) {
+    if (prefix == 'b') {
+        // Return an `undefined` value to omit a property.
+        return;
+    }
+    if (prefix == 'e[f]') {
+        return value.getTime();
+    }
+    if (prefix == 'e[g][0]') {
+        return value * 2;
+    }
+    return value;
+}
+qs.stringify({ a: 'b', c: 'd', e: { f: new Date(123), g: [2] } }, { filter: filterFunc });
+// 'a=b&c=d&e[f]=123&e[g][0]=4'
+qs.stringify({ a: 'b', c: 'd', e: 'f' }, { filter: ['a', 'e'] });
+// 'a=b&e=f'
+qs.stringify({ a: ['b', 'c', 'd'], e: 'f' }, { filter: ['a', 0, 2] });
+// 'a[0]=b&a[2]=d'
+```
+
+You could also use `filter` to inject custom serialization for user defined types.
+Consider you're working with some api that expects query strings of the format for ranges:
+
+```
+https://domain.com/endpoint?range=30...70
+```
+
+For which you model as:
+
+```javascript
+class Range {
+    constructor(from, to) {
+        this.from = from;
+        this.to = to;
+    }
+}
+```
+
+You could _inject_ a custom serializer to handle values of this type:
+
+```javascript
+qs.stringify(
+    {
+        range: new Range(30, 70),
+    },
+    {
+        filter: (prefix, value) => {
+            if (value instanceof Range) {
+                return `${value.from}...${value.to}`;
+            }
+            // serialize the usual way
+            return value;
+        },
+    }
+);
+// range=30...70
+```
+
+### Handling of `null` values
+
+By default, `null` values are treated like empty strings:
+
+```javascript
+var withNull = qs.stringify({ a: null, b: '' });
+assert.equal(withNull, 'a=&b=');
+```
+
+Parsing does not distinguish between parameters with and without equal signs.
+Both are converted to empty strings.
+
+```javascript
+var equalsInsensitive = qs.parse('a&b=');
+assert.deepEqual(equalsInsensitive, { a: '', b: '' });
+```
+
+To distinguish between `null` values and empty strings use the `strictNullHandling` flag. In the result string the `null`
+values have no `=` sign:
+
+```javascript
+var strictNull = qs.stringify({ a: null, b: '' }, { strictNullHandling: true });
+assert.equal(strictNull, 'a&b=');
+```
+
+To parse values without `=` back to `null` use the `strictNullHandling` flag:
+
+```javascript
+var parsedStrictNull = qs.parse('a&b=', { strictNullHandling: true });
+assert.deepEqual(parsedStrictNull, { a: null, b: '' });
+```
+
+To completely skip rendering keys with `null` values, use the `skipNulls` flag:
+
+```javascript
+var nullsSkipped = qs.stringify({ a: 'b', c: null}, { skipNulls: true });
+assert.equal(nullsSkipped, 'a=b');
+```
+
+If you're communicating with legacy systems, you can switch to `iso-8859-1` using the `charset` option:
+
+```javascript
+var iso = qs.stringify({ æ: 'æ' }, { charset: 'iso-8859-1' });
+assert.equal(iso, '%E6=%E6');
+```
+
+Characters that don't exist in `iso-8859-1` will be converted to numeric entities, similar to what browsers do:
+
+```javascript
+var numeric = qs.stringify({ a: '☺' }, { charset: 'iso-8859-1' });
+assert.equal(numeric, 'a=%26%239786%3B');
+```
+
+You can use the `charsetSentinel` option to announce the character by including an `utf8=✓` parameter with the proper encoding if the checkmark, similar to what Ruby on Rails and others do when submitting forms.
+
+```javascript
+var sentinel = qs.stringify({ a: '☺' }, { charsetSentinel: true });
+assert.equal(sentinel, 'utf8=%E2%9C%93&a=%E2%98%BA');
+
+var isoSentinel = qs.stringify({ a: 'æ' }, { charsetSentinel: true, charset: 'iso-8859-1' });
+assert.equal(isoSentinel, 'utf8=%26%2310003%3B&a=%E6');
+```
+
+### Dealing with special character sets
+
+By default the encoding and decoding of characters is done in `utf-8`, and `iso-8859-1` support is also built in via the `charset` parameter.
+
+If you wish to encode querystrings to a different character set (i.e.
+[Shift JIS](https://en.wikipedia.org/wiki/Shift_JIS)) you can use the
+[`qs-iconv`](https://github.com/martinheidegger/qs-iconv) library:
+
+```javascript
+var encoder = require('qs-iconv/encoder')('shift_jis');
+var shiftJISEncoded = qs.stringify({ a: 'こんにちは！' }, { encoder: encoder });
+assert.equal(shiftJISEncoded, 'a=%82%B1%82%F1%82%C9%82%BF%82%CD%81I');
+```
+
+This also works for decoding of query strings:
+
+```javascript
+var decoder = require('qs-iconv/decoder')('shift_jis');
+var obj = qs.parse('a=%82%B1%82%F1%82%C9%82%BF%82%CD%81I', { decoder: decoder });
+assert.deepEqual(obj, { a: 'こんにちは！' });
+```
+
+### RFC 3986 and RFC 1738 space encoding
+
+RFC3986 used as default option and encodes ' ' to *%20* which is backward compatible.
+In the same time, output can be stringified as per RFC1738 with ' ' equal to '+'.
+
+```
+assert.equal(qs.stringify({ a: 'b c' }), 'a=b%20c');
+assert.equal(qs.stringify({ a: 'b c' }, { format : 'RFC3986' }), 'a=b%20c');
+assert.equal(qs.stringify({ a: 'b c' }, { format : 'RFC1738' }), 'a=b+c');
+```
+
+## Security
+
+Please email [@ljharb](https://github.com/ljharb) or see https://tidelift.com/security if you have a potential security vulnerability to report.
+
+## qs for enterprise
+
+Available as part of the Tidelift Subscription
+
+The maintainers of qs and thousands of other packages are working with Tidelift to deliver commercial support and maintenance for the open source dependencies you use to build your applications.
+Save time, reduce risk, and improve code health, while paying the maintainers of the exact dependencies you use.
+[Learn more.](https://tidelift.com/subscription/pkg/npm-qs?utm_source=npm-qs&utm_medium=referral&utm_campaign=enterprise&utm_term=repo)
+
+[package-url]: https://npmjs.org/package/qs
+[npm-version-svg]: https://versionbadg.es/ljharb/qs.svg
+[deps-svg]: https://david-dm.org/ljharb/qs.svg
+[deps-url]: https://david-dm.org/ljharb/qs
+[dev-deps-svg]: https://david-dm.org/ljharb/qs/dev-status.svg
+[dev-deps-url]: https://david-dm.org/ljharb/qs#info=devDependencies
+[npm-badge-png]: https://nodei.co/npm/qs.png?downloads=true&stars=true
+[license-image]: https://img.shields.io/npm/l/qs.svg
+[license-url]: LICENSE
+[downloads-image]: https://img.shields.io/npm/dm/qs.svg
+[downloads-url]: https://npm-stat.com/charts.html?package=qs
+[codecov-image]: https://codecov.io/gh/ljharb/qs/branch/main/graphs/badge.svg
+[codecov-url]: https://app.codecov.io/gh/ljharb/qs/
+[actions-image]: https://img.shields.io/endpoint?url=https://github-actions-badge-u3jn4tfpocch.runkit.sh/ljharb/qs
+[actions-url]: https://github.com/ljharb/qs/actions
+
+## Acknowledgements
+
+qs logo by [NUMI](https://github.com/numi-hq/open-design):
+
+[<img src="https://raw.githubusercontent.com/numi-hq/open-design/main/assets/numi-lockup.png" alt="NUMI Logo" style="width: 200px;"/>](https://numi.tech/?ref=qs)
diff --git a/backend/node_modules/qs/dist/qs.js b/backend/node_modules/qs/dist/qs.js
new file mode 100644
index 0000000..f37989a
--- /dev/null
+++ b/backend/node_modules/qs/dist/qs.js
@@ -0,0 +1,141 @@
+(function(f){if(typeof exports==="object"&&typeof module!=="undefined"){module.exports=f()}else if(typeof define==="function"&&define.amd){define([],f)}else{var g;if(typeof window!=="undefined"){g=window}else if(typeof global!=="undefined"){g=global}else if(typeof self!=="undefined"){g=self}else{g=this}g.Qs = f()}})(function(){var define,module,exports;return (function(){function r(e,n,t){function o(i,f){if(!n[i]){if(!e[i]){var c="function"==typeof require&&require;if(!f&&c)return c(i,!0);if(u)return u(i,!0);var a=new Error("Cannot find module '"+i+"'");throw a.code="MODULE_NOT_FOUND",a}var p=n[i]={exports:{}};e[i][0].call(p.exports,function(r){var n=e[i][1][r];return o(n||r)},p,p.exports,r,e,n,t)}return n[i].exports}for(var u="function"==typeof require&&require,i=0;i<t.length;i++)o(t[i]);return o}return r})()({1:[function(require,module,exports){
+"use strict";var replace=String.prototype.replace,percentTwenties=/%20/g,Format={RFC1738:"RFC1738",RFC3986:"RFC3986"};module.exports={default:Format.RFC3986,formatters:{RFC1738:function(e){return replace.call(e,percentTwenties,"+")},RFC3986:function(e){return String(e)}},RFC1738:Format.RFC1738,RFC3986:Format.RFC3986};
+
+},{}],2:[function(require,module,exports){
+"use strict";var stringify=require(4),parse=require(3),formats=require(1);module.exports={formats:formats,parse:parse,stringify:stringify};
+
+},{"1":1,"3":3,"4":4}],3:[function(require,module,exports){
+"use strict";var utils=require(5),has=Object.prototype.hasOwnProperty,isArray=Array.isArray,defaults={allowDots:!1,allowEmptyArrays:!1,allowPrototypes:!1,allowSparse:!1,arrayLimit:20,charset:"utf-8",charsetSentinel:!1,comma:!1,decodeDotInKeys:!1,decoder:utils.decode,delimiter:"&",depth:5,duplicates:"combine",ignoreQueryPrefix:!1,interpretNumericEntities:!1,parameterLimit:1e3,parseArrays:!0,plainObjects:!1,strictDepth:!1,strictNullHandling:!1,throwOnLimitExceeded:!1},interpretNumericEntities=function(e){return e.replace(/&#(\d+);/g,(function(e,t){return String.fromCharCode(parseInt(t,10))}))},parseArrayValue=function(e,t,r){if(e&&"string"==typeof e&&t.comma&&e.indexOf(",")>-1)return e.split(",");if(t.throwOnLimitExceeded&&r>=t.arrayLimit)throw new RangeError("Array limit exceeded. Only "+t.arrayLimit+" element"+(1===t.arrayLimit?"":"s")+" allowed in an array.");return e},isoSentinel="utf8=%26%2310003%3B",charsetSentinel="utf8=%E2%9C%93",parseValues=function parseQueryStringValues(e,t){var r={__proto__:null},i=t.ignoreQueryPrefix?e.replace(/^\?/,""):e;i=i.replace(/%5B/gi,"[").replace(/%5D/gi,"]");var a=t.parameterLimit===1/0?void 0:t.parameterLimit,o=i.split(t.delimiter,t.throwOnLimitExceeded?a+1:a);if(t.throwOnLimitExceeded&&o.length>a)throw new RangeError("Parameter limit exceeded. Only "+a+" parameter"+(1===a?"":"s")+" allowed.");var l,n=-1,s=t.charset;if(t.charsetSentinel)for(l=0;l<o.length;++l)0===o[l].indexOf("utf8=")&&(o[l]===charsetSentinel?s="utf-8":o[l]===isoSentinel&&(s="iso-8859-1"),n=l,l=o.length);for(l=0;l<o.length;++l)if(l!==n){var d,p,c=o[l],u=c.indexOf("]="),y=-1===u?c.indexOf("="):u+1;-1===y?(d=t.decoder(c,defaults.decoder,s,"key"),p=t.strictNullHandling?null:""):(d=t.decoder(c.slice(0,y),defaults.decoder,s,"key"),p=utils.maybeMap(parseArrayValue(c.slice(y+1),t,isArray(r[d])?r[d].length:0),(function(e){return t.decoder(e,defaults.decoder,s,"value")}))),p&&t.interpretNumericEntities&&"iso-8859-1"===s&&(p=interpretNumericEntities(String(p))),c.indexOf("[]=")>-1&&(p=isArray(p)?[p]:p);var f=has.call(r,d);f&&"combine"===t.duplicates?r[d]=utils.combine(r[d],p):f&&"last"!==t.duplicates||(r[d]=p)}return r},parseObject=function(e,t,r,i){var a=0;if(e.length>0&&"[]"===e[e.length-1]){var o=e.slice(0,-1).join("");a=Array.isArray(t)&&t[o]?t[o].length:0}for(var 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+
+},{"5":5}],4:[function(require,module,exports){
+"use strict";var getSideChannel=require(46),utils=require(5),formats=require(1),has=Object.prototype.hasOwnProperty,arrayPrefixGenerators={brackets:function brackets(e){return e+"[]"},comma:"comma",indices:function indices(e,r){return e+"["+r+"]"},repeat:function repeat(e){return e}},isArray=Array.isArray,push=Array.prototype.push,pushToArray=function(e,r){push.apply(e,isArray(r)?r:[r])},toISO=Date.prototype.toISOString,defaultFormat=formats.default,defaults={addQueryPrefix:!1,allowDots:!1,allowEmptyArrays:!1,arrayFormat:"indices",charset:"utf-8",charsetSentinel:!1,commaRoundTrip:!1,delimiter:"&",encode:!0,encodeDotInKeys:!1,encoder:utils.encode,encodeValuesOnly:!1,filter:void 0,format:defaultFormat,formatter:formats.formatters[defaultFormat],indices:!1,serializeDate:function serializeDate(e){return toISO.call(e)},skipNulls:!1,strictNullHandling:!1},isNonNullishPrimitive=function isNonNullishPrimitive(e){return"string"==typeof e||"number"==typeof e||"boolean"==typeof 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+
+},{"1":1,"46":46,"5":5}],5:[function(require,module,exports){
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+
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+
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+},{}],15:[function(require,module,exports){
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+
+},{}],16:[function(require,module,exports){
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+
+},{}],17:[function(require,module,exports){
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+
+},{}],18:[function(require,module,exports){
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+
+},{}],19:[function(require,module,exports){
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+
+},{}],21:[function(require,module,exports){
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+
+},{}],22:[function(require,module,exports){
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+
+},{}],37:[function(require,module,exports){
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+
+},{}],39:[function(require,module,exports){
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+
+},{}],34:[function(require,module,exports){
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+
+},{}],40:[function(require,module,exports){
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+
+},{}],38:[function(require,module,exports){
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+
+},{}],27:[function(require,module,exports){
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+
+},{}],26:[function(require,module,exports){
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+
+},{"22":22}],33:[function(require,module,exports){
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+
+},{"36":36}],31:[function(require,module,exports){
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+
+},{"32":32}],28:[function(require,module,exports){
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+
+},{"13":13,"26":26,"27":27}],29:[function(require,module,exports){
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+
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+
+},{}],36:[function(require,module,exports){
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+
+},{}],42:[function(require,module,exports){
+(function (global){(function (){
+var hasMap="function"==typeof Map&&Map.prototype,mapSizeDescriptor=Object.getOwnPropertyDescriptor&&hasMap?Object.getOwnPropertyDescriptor(Map.prototype,"size"):null,mapSize=hasMap&&mapSizeDescriptor&&"function"==typeof mapSizeDescriptor.get?mapSizeDescriptor.get:null,mapForEach=hasMap&&Map.prototype.forEach,hasSet="function"==typeof Set&&Set.prototype,setSizeDescriptor=Object.getOwnPropertyDescriptor&&hasSet?Object.getOwnPropertyDescriptor(Set.prototype,"size"):null,setSize=hasSet&&setSizeDescriptor&&"function"==typeof setSizeDescriptor.get?setSizeDescriptor.get:null,setForEach=hasSet&&Set.prototype.forEach,hasWeakMap="function"==typeof WeakMap&&WeakMap.prototype,weakMapHas=hasWeakMap?WeakMap.prototype.has:null,hasWeakSet="function"==typeof WeakSet&&WeakSet.prototype,weakSetHas=hasWeakSet?WeakSet.prototype.has:null,hasWeakRef="function"==typeof WeakRef&&WeakRef.prototype,weakRefDeref=hasWeakRef?WeakRef.prototype.deref:null,booleanValueOf=Boolean.prototype.valueOf,objectToString=Object.prototype.toString,functionToString=Function.prototype.toString,$match=String.prototype.match,$slice=String.prototype.slice,$replace=String.prototype.replace,$toUpperCase=String.prototype.toUpperCase,$toLowerCase=String.prototype.toLowerCase,$test=RegExp.prototype.test,$concat=Array.prototype.concat,$join=Array.prototype.join,$arrSlice=Array.prototype.slice,$floor=Math.floor,bigIntValueOf="function"==typeof BigInt?BigInt.prototype.valueOf:null,gOPS=Object.getOwnPropertySymbols,symToString="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?Symbol.prototype.toString:null,hasShammedSymbols="function"==typeof Symbol&&"object"==typeof Symbol.iterator,toStringTag="function"==typeof Symbol&&Symbol.toStringTag&&(Symbol.toStringTag,1)?Symbol.toStringTag:null,isEnumerable=Object.prototype.propertyIsEnumerable,gPO=("function"==typeof Reflect?Reflect.getPrototypeOf:Object.getPrototypeOf)||([].__proto__===Array.prototype?function(t){return t.__proto__}:null);function addNumericSeparator(t,e){if(t===1/0||t===-1/0||t!=t||t&&t>-1e3&&t<1e3||$test.call(/e/,e))return e;var r=/[0-9](?=(?:[0-9]{3})+(?![0-9]))/g;if("number"==typeof t){var n=t<0?-$floor(-t):$floor(t);if(n!==t){var o=String(n),i=$slice.call(e,o.length+1);return $replace.call(o,r,"$&_")+"."+$replace.call($replace.call(i,/([0-9]{3})/g,"$&_"),/_$/,"")}}return $replace.call(e,r,"$&_")}var utilInspect=require(6),inspectCustom=utilInspect.custom,inspectSymbol=isSymbol(inspectCustom)?inspectCustom:null,quotes={__proto__:null,double:'"',single:"'"},quoteREs={__proto__:null,double:/(["\\])/g,single:/(['\\])/g};function wrapQuotes(t,e,r){var n=r.quoteStyle||e,o=quotes[n];return o+t+o}function quote(t){return $replace.call(String(t),/"/g,"&quot;")}function isArray(t){return!("[object Array]"!==toStr(t)||toStringTag&&"object"==typeof t&&toStringTag in t)}function isDate(t){return!("[object Date]"!==toStr(t)||toStringTag&&"object"==typeof t&&toStringTag in t)}function isRegExp(t){return!("[object RegExp]"!==toStr(t)||toStringTag&&"object"==typeof t&&toStringTag in t)}function isError(t){return!("[object Error]"!==toStr(t)||toStringTag&&"object"==typeof t&&toStringTag in t)}function isString(t){return!("[object String]"!==toStr(t)||toStringTag&&"object"==typeof t&&toStringTag in t)}function isNumber(t){return!("[object Number]"!==toStr(t)||toStringTag&&"object"==typeof t&&toStringTag in t)}function isBoolean(t){return!("[object Boolean]"!==toStr(t)||toStringTag&&"object"==typeof t&&toStringTag in t)}function isSymbol(t){if(hasShammedSymbols)return t&&"object"==typeof t&&t instanceof Symbol;if("symbol"==typeof t)return!0;if(!t||"object"!=typeof t||!symToString)return!1;try{return symToString.call(t),!0}catch(t){}return!1}function isBigInt(t){if(!t||"object"!=typeof t||!bigIntValueOf)return!1;try{return bigIntValueOf.call(t),!0}catch(t){}return!1}module.exports=function inspect_(t,e,r,n){var o=e||{};if(has(o,"quoteStyle")&&!has(quotes,o.quoteStyle))throw new TypeError('option "quoteStyle" must be "single" or "double"');if(has(o,"maxStringLength")&&("number"==typeof o.maxStringLength?o.maxStringLength<0&&o.maxStringLength!==1/0:null!==o.maxStringLength))throw new TypeError('option "maxStringLength", if provided, must be a positive integer, Infinity, or `null`');var i=!has(o,"customInspect")||o.customInspect;if("boolean"!=typeof i&&"symbol"!==i)throw new TypeError("option \"customInspect\", if provided, must be `true`, `false`, or `'symbol'`");if(has(o,"indent")&&null!==o.indent&&"\t"!==o.indent&&!(parseInt(o.indent,10)===o.indent&&o.indent>0))throw new TypeError('option "indent" must be "\\t", an integer > 0, or `null`');if(has(o,"numericSeparator")&&"boolean"!=typeof o.numericSeparator)throw new TypeError('option "numericSeparator", if provided, must be `true` or `false`');var a=o.numericSeparator;if(void 0===t)return"undefined";if(null===t)return"null";if("boolean"==typeof t)return t?"true":"false";if("string"==typeof t)return inspectString(t,o);if("number"==typeof t){if(0===t)return 1/0/t>0?"0":"-0";var c=String(t);return a?addNumericSeparator(t,c):c}if("bigint"==typeof t){var l=String(t)+"n";return a?addNumericSeparator(t,l):l}var p=void 0===o.depth?5:o.depth;if(void 0===r&&(r=0),r>=p&&p>0&&"object"==typeof t)return isArray(t)?"[Array]":"[Object]";var u=getIndent(o,r);if(void 0===n)n=[];else if(indexOf(n,t)>=0)return"[Circular]";function inspect(t,e,i){if(e&&(n=$arrSlice.call(n)).push(e),i){var a={depth:o.depth};return has(o,"quoteStyle")&&(a.quoteStyle=o.quoteStyle),inspect_(t,a,r+1,n)}return inspect_(t,o,r+1,n)}if("function"==typeof t&&!isRegExp(t)){var s=nameOf(t),f=arrObjKeys(t,inspect);return"[Function"+(s?": "+s:" (anonymous)")+"]"+(f.length>0?" { "+$join.call(f,", ")+" }":"")}if(isSymbol(t)){var y=hasShammedSymbols?$replace.call(String(t),/^(Symbol\(.*\))_[^)]*$/,"$1"):symToString.call(t);return"object"!=typeof t||hasShammedSymbols?y:markBoxed(y)}if(isElement(t)){for(var S="<"+$toLowerCase.call(String(t.nodeName)),g=t.attributes||[],b=0;b<g.length;b++)S+=" "+g[b].name+"="+wrapQuotes(quote(g[b].value),"double",o);return S+=">",t.childNodes&&t.childNodes.length&&(S+="..."),S+"</"+$toLowerCase.call(String(t.nodeName))+">"}if(isArray(t)){if(0===t.length)return"[]";var m=arrObjKeys(t,inspect);return u&&!singleLineValues(m)?"["+indentedJoin(m,u)+"]":"[ "+$join.call(m,", ")+" ]"}if(isError(t)){var h=arrObjKeys(t,inspect);return"cause"in Error.prototype||!("cause"in t)||isEnumerable.call(t,"cause")?0===h.length?"["+String(t)+"]":"{ ["+String(t)+"] "+$join.call(h,", ")+" }":"{ ["+String(t)+"] "+$join.call($concat.call("[cause]: "+inspect(t.cause),h),", ")+" }"}if("object"==typeof t&&i){if(inspectSymbol&&"function"==typeof t[inspectSymbol]&&utilInspect)return utilInspect(t,{depth:p-r});if("symbol"!==i&&"function"==typeof t.inspect)return t.inspect()}if(isMap(t)){var d=[];return mapForEach&&mapForEach.call(t,(function(e,r){d.push(inspect(r,t,!0)+" => "+inspect(e,t))})),collectionOf("Map",mapSize.call(t),d,u)}if(isSet(t)){var j=[];return setForEach&&setForEach.call(t,(function(e){j.push(inspect(e,t))})),collectionOf("Set",setSize.call(t),j,u)}if(isWeakMap(t))return weakCollectionOf("WeakMap");if(isWeakSet(t))return weakCollectionOf("WeakSet");if(isWeakRef(t))return weakCollectionOf("WeakRef");if(isNumber(t))return markBoxed(inspect(Number(t)));if(isBigInt(t))return markBoxed(inspect(bigIntValueOf.call(t)));if(isBoolean(t))return markBoxed(booleanValueOf.call(t));if(isString(t))return markBoxed(inspect(String(t)));if("undefined"!=typeof window&&t===window)return"{ [object Window] }";if("undefined"!=typeof globalThis&&t===globalThis||"undefined"!=typeof global&&t===global)return"{ [object globalThis] }";if(!isDate(t)&&!isRegExp(t)){var O=arrObjKeys(t,inspect),w=gPO?gPO(t)===Object.prototype:t instanceof Object||t.constructor===Object,$=t instanceof Object?"":"null prototype",k=!w&&toStringTag&&Object(t)===t&&toStringTag in t?$slice.call(toStr(t),8,-1):$?"Object":"",v=(w||"function"!=typeof t.constructor?"":t.constructor.name?t.constructor.name+" ":"")+(k||$?"["+$join.call($concat.call([],k||[],$||[]),": ")+"] ":"");return 0===O.length?v+"{}":u?v+"{"+indentedJoin(O,u)+"}":v+"{ "+$join.call(O,", ")+" }"}return String(t)};var hasOwn=Object.prototype.hasOwnProperty||function(t){return t in this};function has(t,e){return hasOwn.call(t,e)}function toStr(t){return objectToString.call(t)}function nameOf(t){if(t.name)return t.name;var e=$match.call(functionToString.call(t),/^function\s*([\w$]+)/);return e?e[1]:null}function indexOf(t,e){if(t.indexOf)return t.indexOf(e);for(var r=0,n=t.length;r<n;r++)if(t[r]===e)return r;return-1}function isMap(t){if(!mapSize||!t||"object"!=typeof t)return!1;try{mapSize.call(t);try{setSize.call(t)}catch(t){return!0}return t instanceof Map}catch(t){}return!1}function isWeakMap(t){if(!weakMapHas||!t||"object"!=typeof t)return!1;try{weakMapHas.call(t,weakMapHas);try{weakSetHas.call(t,weakSetHas)}catch(t){return!0}return t instanceof WeakMap}catch(t){}return!1}function isWeakRef(t){if(!weakRefDeref||!t||"object"!=typeof t)return!1;try{return weakRefDeref.call(t),!0}catch(t){}return!1}function isSet(t){if(!setSize||!t||"object"!=typeof t)return!1;try{setSize.call(t);try{mapSize.call(t)}catch(t){return!0}return t instanceof Set}catch(t){}return!1}function isWeakSet(t){if(!weakSetHas||!t||"object"!=typeof t)return!1;try{weakSetHas.call(t,weakSetHas);try{weakMapHas.call(t,weakMapHas)}catch(t){return!0}return t instanceof WeakSet}catch(t){}return!1}function isElement(t){return!(!t||"object"!=typeof t)&&("undefined"!=typeof HTMLElement&&t instanceof HTMLElement||"string"==typeof t.nodeName&&"function"==typeof t.getAttribute)}function inspectString(t,e){if(t.length>e.maxStringLength){var r=t.length-e.maxStringLength,n="... "+r+" more character"+(r>1?"s":"");return inspectString($slice.call(t,0,e.maxStringLength),e)+n}var o=quoteREs[e.quoteStyle||"single"];return o.lastIndex=0,wrapQuotes($replace.call($replace.call(t,o,"\\$1"),/[\x00-\x1f]/g,lowbyte),"single",e)}function lowbyte(t){var e=t.charCodeAt(0),r={8:"b",9:"t",10:"n",12:"f",13:"r"}[e];return r?"\\"+r:"\\x"+(e<16?"0":"")+$toUpperCase.call(e.toString(16))}function markBoxed(t){return"Object("+t+")"}function weakCollectionOf(t){return t+" { ? }"}function collectionOf(t,e,r,n){return t+" ("+e+") {"+(n?indentedJoin(r,n):$join.call(r,", "))+"}"}function singleLineValues(t){for(var e=0;e<t.length;e++)if(indexOf(t[e],"\n")>=0)return!1;return!0}function getIndent(t,e){var r;if("\t"===t.indent)r="\t";else{if(!("number"==typeof t.indent&&t.indent>0))return null;r=$join.call(Array(t.indent+1)," ")}return{base:r,prev:$join.call(Array(e+1),r)}}function indentedJoin(t,e){if(0===t.length)return"";var r="\n"+e.prev+e.base;return r+$join.call(t,","+r)+"\n"+e.prev}function arrObjKeys(t,e){var r=isArray(t),n=[];if(r){n.length=t.length;for(var o=0;o<t.length;o++)n[o]=has(t,o)?e(t[o],t):""}var i,a="function"==typeof gOPS?gOPS(t):[];if(hasShammedSymbols){i={};for(var c=0;c<a.length;c++)i["$"+a[c]]=a[c]}for(var l in t)has(t,l)&&(r&&String(Number(l))===l&&l<t.length||hasShammedSymbols&&i["$"+l]instanceof Symbol||($test.call(/[^\w$]/,l)?n.push(e(l,t)+": "+e(t[l],t)):n.push(l+": "+e(t[l],t))));if("function"==typeof gOPS)for(var p=0;p<a.length;p++)isEnumerable.call(t,a[p])&&n.push("["+e(a[p])+"]: "+e(t[a[p]],t));return n}
+
+}).call(this)}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
+},{"6":6}],43:[function(require,module,exports){
+"use strict";var inspect=require(42),$TypeError=require(20),listGetNode=function(e,t,n){for(var i,r=e;null!=(i=r.next);r=i)if(i.key===t)return r.next=i.next,n||(i.next=e.next,e.next=i),i},listGet=function(e,t){if(e){var n=listGetNode(e,t);return n&&n.value}},listSet=function(e,t,n){var i=listGetNode(e,t);i?i.value=n:e.next={key:t,next:e.next,value:n}},listHas=function(e,t){return!!e&&!!listGetNode(e,t)},listDelete=function(e,t){if(e)return listGetNode(e,t,!0)};module.exports=function getSideChannelList(){var e,t={assert:function(e){if(!t.has(e))throw new $TypeError("Side channel does not contain "+inspect(e))},delete:function(t){var n=e&&e.next,i=listDelete(e,t);return i&&n&&n===i&&(e=void 0),!!i},get:function(t){return listGet(e,t)},has:function(t){return listHas(e,t)},set:function(t,n){e||(e={next:void 0}),listSet(e,t,n)}};return t};
+
+},{"20":20,"42":42}],44:[function(require,module,exports){
+"use strict";var GetIntrinsic=require(25),callBound=require(12),inspect=require(42),$TypeError=require(20),$Map=GetIntrinsic("%Map%",!0),$mapGet=callBound("Map.prototype.get",!0),$mapSet=callBound("Map.prototype.set",!0),$mapHas=callBound("Map.prototype.has",!0),$mapDelete=callBound("Map.prototype.delete",!0),$mapSize=callBound("Map.prototype.size",!0);module.exports=!!$Map&&function getSideChannelMap(){var e,t={assert:function(e){if(!t.has(e))throw new $TypeError("Side channel does not contain "+inspect(e))},delete:function(t){if(e){var n=$mapDelete(e,t);return 0===$mapSize(e)&&(e=void 0),n}return!1},get:function(t){if(e)return $mapGet(e,t)},has:function(t){return!!e&&$mapHas(e,t)},set:function(t,n){e||(e=new $Map),$mapSet(e,t,n)}};return t};
+
+},{"12":12,"20":20,"25":25,"42":42}],45:[function(require,module,exports){
+"use strict";var GetIntrinsic=require(25),callBound=require(12),inspect=require(42),getSideChannelMap=require(44),$TypeError=require(20),$WeakMap=GetIntrinsic("%WeakMap%",!0),$weakMapGet=callBound("WeakMap.prototype.get",!0),$weakMapSet=callBound("WeakMap.prototype.set",!0),$weakMapHas=callBound("WeakMap.prototype.has",!0),$weakMapDelete=callBound("WeakMap.prototype.delete",!0);module.exports=$WeakMap?function getSideChannelWeakMap(){var e,t,a={assert:function(e){if(!a.has(e))throw new $TypeError("Side channel does not contain "+inspect(e))},delete:function(a){if($WeakMap&&a&&("object"==typeof a||"function"==typeof a)){if(e)return $weakMapDelete(e,a)}else if(getSideChannelMap&&t)return t.delete(a);return!1},get:function(a){return $WeakMap&&a&&("object"==typeof a||"function"==typeof a)&&e?$weakMapGet(e,a):t&&t.get(a)},has:function(a){return $WeakMap&&a&&("object"==typeof a||"function"==typeof a)&&e?$weakMapHas(e,a):!!t&&t.has(a)},set:function(a,n){$WeakMap&&a&&("object"==typeof a||"function"==typeof a)?(e||(e=new $WeakMap),$weakMapSet(e,a,n)):getSideChannelMap&&(t||(t=getSideChannelMap()),t.set(a,n))}};return a}:getSideChannelMap;
+
+},{"12":12,"20":20,"25":25,"42":42,"44":44}]},{},[2])(2)
+});
diff --git a/backend/node_modules/qs/lib/formats.js b/backend/node_modules/qs/lib/formats.js
new file mode 100644
index 0000000..f36cf20
--- /dev/null
+++ b/backend/node_modules/qs/lib/formats.js
@@ -0,0 +1,23 @@
+'use strict';
+
+var replace = String.prototype.replace;
+var percentTwenties = /%20/g;
+
+var Format = {
+    RFC1738: 'RFC1738',
+    RFC3986: 'RFC3986'
+};
+
+module.exports = {
+    'default': Format.RFC3986,
+    formatters: {
+        RFC1738: function (value) {
+            return replace.call(value, percentTwenties, '+');
+        },
+        RFC3986: function (value) {
+            return String(value);
+        }
+    },
+    RFC1738: Format.RFC1738,
+    RFC3986: Format.RFC3986
+};
diff --git a/backend/node_modules/qs/lib/index.js b/backend/node_modules/qs/lib/index.js
new file mode 100644
index 0000000..0d6a97d
--- /dev/null
+++ b/backend/node_modules/qs/lib/index.js
@@ -0,0 +1,11 @@
+'use strict';
+
+var stringify = require('./stringify');
+var parse = require('./parse');
+var formats = require('./formats');
+
+module.exports = {
+    formats: formats,
+    parse: parse,
+    stringify: stringify
+};
diff --git a/backend/node_modules/qs/lib/parse.js b/backend/node_modules/qs/lib/parse.js
new file mode 100644
index 0000000..d25be00
--- /dev/null
+++ b/backend/node_modules/qs/lib/parse.js
@@ -0,0 +1,328 @@
+'use strict';
+
+var utils = require('./utils');
+
+var has = Object.prototype.hasOwnProperty;
+var isArray = Array.isArray;
+
+var defaults = {
+    allowDots: false,
+    allowEmptyArrays: false,
+    allowPrototypes: false,
+    allowSparse: false,
+    arrayLimit: 20,
+    charset: 'utf-8',
+    charsetSentinel: false,
+    comma: false,
+    decodeDotInKeys: false,
+    decoder: utils.decode,
+    delimiter: '&',
+    depth: 5,
+    duplicates: 'combine',
+    ignoreQueryPrefix: false,
+    interpretNumericEntities: false,
+    parameterLimit: 1000,
+    parseArrays: true,
+    plainObjects: false,
+    strictDepth: false,
+    strictNullHandling: false,
+    throwOnLimitExceeded: false
+};
+
+var interpretNumericEntities = function (str) {
+    return str.replace(/&#(\d+);/g, function ($0, numberStr) {
+        return String.fromCharCode(parseInt(numberStr, 10));
+    });
+};
+
+var parseArrayValue = function (val, options, currentArrayLength) {
+    if (val && typeof val === 'string' && options.comma && val.indexOf(',') > -1) {
+        return val.split(',');
+    }
+
+    if (options.throwOnLimitExceeded && currentArrayLength >= options.arrayLimit) {
+        throw new RangeError('Array limit exceeded. Only ' + options.arrayLimit + ' element' + (options.arrayLimit === 1 ? '' : 's') + ' allowed in an array.');
+    }
+
+    return val;
+};
+
+// This is what browsers will submit when the ✓ character occurs in an
+// application/x-www-form-urlencoded body and the encoding of the page containing
+// the form is iso-8859-1, or when the submitted form has an accept-charset
+// attribute of iso-8859-1. Presumably also with other charsets that do not contain
+// the ✓ character, such as us-ascii.
+var isoSentinel = 'utf8=%26%2310003%3B'; // encodeURIComponent('&#10003;')
+
+// These are the percent-encoded utf-8 octets representing a checkmark, indicating that the request actually is utf-8 encoded.
+var charsetSentinel = 'utf8=%E2%9C%93'; // encodeURIComponent('✓')
+
+var parseValues = function parseQueryStringValues(str, options) {
+    var obj = { __proto__: null };
+
+    var cleanStr = options.ignoreQueryPrefix ? str.replace(/^\?/, '') : str;
+    cleanStr = cleanStr.replace(/%5B/gi, '[').replace(/%5D/gi, ']');
+
+    var limit = options.parameterLimit === Infinity ? undefined : options.parameterLimit;
+    var parts = cleanStr.split(
+        options.delimiter,
+        options.throwOnLimitExceeded ? limit + 1 : limit
+    );
+
+    if (options.throwOnLimitExceeded && parts.length > limit) {
+        throw new RangeError('Parameter limit exceeded. Only ' + limit + ' parameter' + (limit === 1 ? '' : 's') + ' allowed.');
+    }
+
+    var skipIndex = -1; // Keep track of where the utf8 sentinel was found
+    var i;
+
+    var charset = options.charset;
+    if (options.charsetSentinel) {
+        for (i = 0; i < parts.length; ++i) {
+            if (parts[i].indexOf('utf8=') === 0) {
+                if (parts[i] === charsetSentinel) {
+                    charset = 'utf-8';
+                } else if (parts[i] === isoSentinel) {
+                    charset = 'iso-8859-1';
+                }
+                skipIndex = i;
+                i = parts.length; // The eslint settings do not allow break;
+            }
+        }
+    }
+
+    for (i = 0; i < parts.length; ++i) {
+        if (i === skipIndex) {
+            continue;
+        }
+        var part = parts[i];
+
+        var bracketEqualsPos = part.indexOf(']=');
+        var pos = bracketEqualsPos === -1 ? part.indexOf('=') : bracketEqualsPos + 1;
+
+        var key;
+        var val;
+        if (pos === -1) {
+            key = options.decoder(part, defaults.decoder, charset, 'key');
+            val = options.strictNullHandling ? null : '';
+        } else {
+            key = options.decoder(part.slice(0, pos), defaults.decoder, charset, 'key');
+
+            val = utils.maybeMap(
+                parseArrayValue(
+                    part.slice(pos + 1),
+                    options,
+                    isArray(obj[key]) ? obj[key].length : 0
+                ),
+                function (encodedVal) {
+                    return options.decoder(encodedVal, defaults.decoder, charset, 'value');
+                }
+            );
+        }
+
+        if (val && options.interpretNumericEntities && charset === 'iso-8859-1') {
+            val = interpretNumericEntities(String(val));
+        }
+
+        if (part.indexOf('[]=') > -1) {
+            val = isArray(val) ? [val] : val;
+        }
+
+        var existing = has.call(obj, key);
+        if (existing && options.duplicates === 'combine') {
+            obj[key] = utils.combine(obj[key], val);
+        } else if (!existing || options.duplicates === 'last') {
+            obj[key] = val;
+        }
+    }
+
+    return obj;
+};
+
+var parseObject = function (chain, val, options, valuesParsed) {
+    var currentArrayLength = 0;
+    if (chain.length > 0 && chain[chain.length - 1] === '[]') {
+        var parentKey = chain.slice(0, -1).join('');
+        currentArrayLength = Array.isArray(val) && val[parentKey] ? val[parentKey].length : 0;
+    }
+
+    var leaf = valuesParsed ? val : parseArrayValue(val, options, currentArrayLength);
+
+    for (var i = chain.length - 1; i >= 0; --i) {
+        var obj;
+        var root = chain[i];
+
+        if (root === '[]' && options.parseArrays) {
+            obj = options.allowEmptyArrays && (leaf === '' || (options.strictNullHandling && leaf === null))
+                ? []
+                : utils.combine([], leaf);
+        } else {
+            obj = options.plainObjects ? { __proto__: null } : {};
+            var cleanRoot = root.charAt(0) === '[' && root.charAt(root.length - 1) === ']' ? root.slice(1, -1) : root;
+            var decodedRoot = options.decodeDotInKeys ? cleanRoot.replace(/%2E/g, '.') : cleanRoot;
+            var index = parseInt(decodedRoot, 10);
+            if (!options.parseArrays && decodedRoot === '') {
+                obj = { 0: leaf };
+            } else if (
+                !isNaN(index)
+                && root !== decodedRoot
+                && String(index) === decodedRoot
+                && index >= 0
+                && (options.parseArrays && index <= options.arrayLimit)
+            ) {
+                obj = [];
+                obj[index] = leaf;
+            } else if (decodedRoot !== '__proto__') {
+                obj[decodedRoot] = leaf;
+            }
+        }
+
+        leaf = obj;
+    }
+
+    return leaf;
+};
+
+var parseKeys = function parseQueryStringKeys(givenKey, val, options, valuesParsed) {
+    if (!givenKey) {
+        return;
+    }
+
+    // Transform dot notation to bracket notation
+    var key = options.allowDots ? givenKey.replace(/\.([^.[]+)/g, '[$1]') : givenKey;
+
+    // The regex chunks
+
+    var brackets = /(\[[^[\]]*])/;
+    var child = /(\[[^[\]]*])/g;
+
+    // Get the parent
+
+    var segment = options.depth > 0 && brackets.exec(key);
+    var parent = segment ? key.slice(0, segment.index) : key;
+
+    // Stash the parent if it exists
+
+    var keys = [];
+    if (parent) {
+        // If we aren't using plain objects, optionally prefix keys that would overwrite object prototype properties
+        if (!options.plainObjects && has.call(Object.prototype, parent)) {
+            if (!options.allowPrototypes) {
+                return;
+            }
+        }
+
+        keys.push(parent);
+    }
+
+    // Loop through children appending to the array until we hit depth
+
+    var i = 0;
+    while (options.depth > 0 && (segment = child.exec(key)) !== null && i < options.depth) {
+        i += 1;
+        if (!options.plainObjects && has.call(Object.prototype, segment[1].slice(1, -1))) {
+            if (!options.allowPrototypes) {
+                return;
+            }
+        }
+        keys.push(segment[1]);
+    }
+
+    // If there's a remainder, check strictDepth option for throw, else just add whatever is left
+
+    if (segment) {
+        if (options.strictDepth === true) {
+            throw new RangeError('Input depth exceeded depth option of ' + options.depth + ' and strictDepth is true');
+        }
+        keys.push('[' + key.slice(segment.index) + ']');
+    }
+
+    return parseObject(keys, val, options, valuesParsed);
+};
+
+var normalizeParseOptions = function normalizeParseOptions(opts) {
+    if (!opts) {
+        return defaults;
+    }
+
+    if (typeof opts.allowEmptyArrays !== 'undefined' && typeof opts.allowEmptyArrays !== 'boolean') {
+        throw new TypeError('`allowEmptyArrays` option can only be `true` or `false`, when provided');
+    }
+
+    if (typeof opts.decodeDotInKeys !== 'undefined' && typeof opts.decodeDotInKeys !== 'boolean') {
+        throw new TypeError('`decodeDotInKeys` option can only be `true` or `false`, when provided');
+    }
+
+    if (opts.decoder !== null && typeof opts.decoder !== 'undefined' && typeof opts.decoder !== 'function') {
+        throw new TypeError('Decoder has to be a function.');
+    }
+
+    if (typeof opts.charset !== 'undefined' && opts.charset !== 'utf-8' && opts.charset !== 'iso-8859-1') {
+        throw new TypeError('The charset option must be either utf-8, iso-8859-1, or undefined');
+    }
+
+    if (typeof opts.throwOnLimitExceeded !== 'undefined' && typeof opts.throwOnLimitExceeded !== 'boolean') {
+        throw new TypeError('`throwOnLimitExceeded` option must be a boolean');
+    }
+
+    var charset = typeof opts.charset === 'undefined' ? defaults.charset : opts.charset;
+
+    var duplicates = typeof opts.duplicates === 'undefined' ? defaults.duplicates : opts.duplicates;
+
+    if (duplicates !== 'combine' && duplicates !== 'first' && duplicates !== 'last') {
+        throw new TypeError('The duplicates option must be either combine, first, or last');
+    }
+
+    var allowDots = typeof opts.allowDots === 'undefined' ? opts.decodeDotInKeys === true ? true : defaults.allowDots : !!opts.allowDots;
+
+    return {
+        allowDots: allowDots,
+        allowEmptyArrays: typeof opts.allowEmptyArrays === 'boolean' ? !!opts.allowEmptyArrays : defaults.allowEmptyArrays,
+        allowPrototypes: typeof opts.allowPrototypes === 'boolean' ? opts.allowPrototypes : defaults.allowPrototypes,
+        allowSparse: typeof opts.allowSparse === 'boolean' ? opts.allowSparse : defaults.allowSparse,
+        arrayLimit: typeof opts.arrayLimit === 'number' ? opts.arrayLimit : defaults.arrayLimit,
+        charset: charset,
+        charsetSentinel: typeof opts.charsetSentinel === 'boolean' ? opts.charsetSentinel : defaults.charsetSentinel,
+        comma: typeof opts.comma === 'boolean' ? opts.comma : defaults.comma,
+        decodeDotInKeys: typeof opts.decodeDotInKeys === 'boolean' ? opts.decodeDotInKeys : defaults.decodeDotInKeys,
+        decoder: typeof opts.decoder === 'function' ? opts.decoder : defaults.decoder,
+        delimiter: typeof opts.delimiter === 'string' || utils.isRegExp(opts.delimiter) ? opts.delimiter : defaults.delimiter,
+        // eslint-disable-next-line no-implicit-coercion, no-extra-parens
+        depth: (typeof opts.depth === 'number' || opts.depth === false) ? +opts.depth : defaults.depth,
+        duplicates: duplicates,
+        ignoreQueryPrefix: opts.ignoreQueryPrefix === true,
+        interpretNumericEntities: typeof opts.interpretNumericEntities === 'boolean' ? opts.interpretNumericEntities : defaults.interpretNumericEntities,
+        parameterLimit: typeof opts.parameterLimit === 'number' ? opts.parameterLimit : defaults.parameterLimit,
+        parseArrays: opts.parseArrays !== false,
+        plainObjects: typeof opts.plainObjects === 'boolean' ? opts.plainObjects : defaults.plainObjects,
+        strictDepth: typeof opts.strictDepth === 'boolean' ? !!opts.strictDepth : defaults.strictDepth,
+        strictNullHandling: typeof opts.strictNullHandling === 'boolean' ? opts.strictNullHandling : defaults.strictNullHandling,
+        throwOnLimitExceeded: typeof opts.throwOnLimitExceeded === 'boolean' ? opts.throwOnLimitExceeded : false
+    };
+};
+
+module.exports = function (str, opts) {
+    var options = normalizeParseOptions(opts);
+
+    if (str === '' || str === null || typeof str === 'undefined') {
+        return options.plainObjects ? { __proto__: null } : {};
+    }
+
+    var tempObj = typeof str === 'string' ? parseValues(str, options) : str;
+    var obj = options.plainObjects ? { __proto__: null } : {};
+
+    // Iterate over the keys and setup the new object
+
+    var keys = Object.keys(tempObj);
+    for (var i = 0; i < keys.length; ++i) {
+        var key = keys[i];
+        var newObj = parseKeys(key, tempObj[key], options, typeof str === 'string');
+        obj = utils.merge(obj, newObj, options);
+    }
+
+    if (options.allowSparse === true) {
+        return obj;
+    }
+
+    return utils.compact(obj);
+};
diff --git a/backend/node_modules/qs/lib/stringify.js b/backend/node_modules/qs/lib/stringify.js
new file mode 100644
index 0000000..2666eaf
--- /dev/null
+++ b/backend/node_modules/qs/lib/stringify.js
@@ -0,0 +1,356 @@
+'use strict';
+
+var getSideChannel = require('side-channel');
+var utils = require('./utils');
+var formats = require('./formats');
+var has = Object.prototype.hasOwnProperty;
+
+var arrayPrefixGenerators = {
+    brackets: function brackets(prefix) {
+        return prefix + '[]';
+    },
+    comma: 'comma',
+    indices: function indices(prefix, key) {
+        return prefix + '[' + key + ']';
+    },
+    repeat: function repeat(prefix) {
+        return prefix;
+    }
+};
+
+var isArray = Array.isArray;
+var push = Array.prototype.push;
+var pushToArray = function (arr, valueOrArray) {
+    push.apply(arr, isArray(valueOrArray) ? valueOrArray : [valueOrArray]);
+};
+
+var toISO = Date.prototype.toISOString;
+
+var defaultFormat = formats['default'];
+var defaults = {
+    addQueryPrefix: false,
+    allowDots: false,
+    allowEmptyArrays: false,
+    arrayFormat: 'indices',
+    charset: 'utf-8',
+    charsetSentinel: false,
+    commaRoundTrip: false,
+    delimiter: '&',
+    encode: true,
+    encodeDotInKeys: false,
+    encoder: utils.encode,
+    encodeValuesOnly: false,
+    filter: void undefined,
+    format: defaultFormat,
+    formatter: formats.formatters[defaultFormat],
+    // deprecated
+    indices: false,
+    serializeDate: function serializeDate(date) {
+        return toISO.call(date);
+    },
+    skipNulls: false,
+    strictNullHandling: false
+};
+
+var isNonNullishPrimitive = function isNonNullishPrimitive(v) {
+    return typeof v === 'string'
+        || typeof v === 'number'
+        || typeof v === 'boolean'
+        || typeof v === 'symbol'
+        || typeof v === 'bigint';
+};
+
+var sentinel = {};
+
+var stringify = function stringify(
+    object,
+    prefix,
+    generateArrayPrefix,
+    commaRoundTrip,
+    allowEmptyArrays,
+    strictNullHandling,
+    skipNulls,
+    encodeDotInKeys,
+    encoder,
+    filter,
+    sort,
+    allowDots,
+    serializeDate,
+    format,
+    formatter,
+    encodeValuesOnly,
+    charset,
+    sideChannel
+) {
+    var obj = object;
+
+    var tmpSc = sideChannel;
+    var step = 0;
+    var findFlag = false;
+    while ((tmpSc = tmpSc.get(sentinel)) !== void undefined && !findFlag) {
+        // Where object last appeared in the ref tree
+        var pos = tmpSc.get(object);
+        step += 1;
+        if (typeof pos !== 'undefined') {
+            if (pos === step) {
+                throw new RangeError('Cyclic object value');
+            } else {
+                findFlag = true; // Break while
+            }
+        }
+        if (typeof tmpSc.get(sentinel) === 'undefined') {
+            step = 0;
+        }
+    }
+
+    if (typeof filter === 'function') {
+        obj = filter(prefix, obj);
+    } else if (obj instanceof Date) {
+        obj = serializeDate(obj);
+    } else if (generateArrayPrefix === 'comma' && isArray(obj)) {
+        obj = utils.maybeMap(obj, function (value) {
+            if (value instanceof Date) {
+                return serializeDate(value);
+            }
+            return value;
+        });
+    }
+
+    if (obj === null) {
+        if (strictNullHandling) {
+            return encoder && !encodeValuesOnly ? encoder(prefix, defaults.encoder, charset, 'key', format) : prefix;
+        }
+
+        obj = '';
+    }
+
+    if (isNonNullishPrimitive(obj) || utils.isBuffer(obj)) {
+        if (encoder) {
+            var keyValue = encodeValuesOnly ? prefix : encoder(prefix, defaults.encoder, charset, 'key', format);
+            return [formatter(keyValue) + '=' + formatter(encoder(obj, defaults.encoder, charset, 'value', format))];
+        }
+        return [formatter(prefix) + '=' + formatter(String(obj))];
+    }
+
+    var values = [];
+
+    if (typeof obj === 'undefined') {
+        return values;
+    }
+
+    var objKeys;
+    if (generateArrayPrefix === 'comma' && isArray(obj)) {
+        // we need to join elements in
+        if (encodeValuesOnly && encoder) {
+            obj = utils.maybeMap(obj, encoder);
+        }
+        objKeys = [{ value: obj.length > 0 ? obj.join(',') || null : void undefined }];
+    } else if (isArray(filter)) {
+        objKeys = filter;
+    } else {
+        var keys = Object.keys(obj);
+        objKeys = sort ? keys.sort(sort) : keys;
+    }
+
+    var encodedPrefix = encodeDotInKeys ? String(prefix).replace(/\./g, '%2E') : String(prefix);
+
+    var adjustedPrefix = commaRoundTrip && isArray(obj) && obj.length === 1 ? encodedPrefix + '[]' : encodedPrefix;
+
+    if (allowEmptyArrays && isArray(obj) && obj.length === 0) {
+        return adjustedPrefix + '[]';
+    }
+
+    for (var j = 0; j < objKeys.length; ++j) {
+        var key = objKeys[j];
+        var value = typeof key === 'object' && key && typeof key.value !== 'undefined'
+            ? key.value
+            : obj[key];
+
+        if (skipNulls && value === null) {
+            continue;
+        }
+
+        var encodedKey = allowDots && encodeDotInKeys ? String(key).replace(/\./g, '%2E') : String(key);
+        var keyPrefix = isArray(obj)
+            ? typeof generateArrayPrefix === 'function' ? generateArrayPrefix(adjustedPrefix, encodedKey) : adjustedPrefix
+            : adjustedPrefix + (allowDots ? '.' + encodedKey : '[' + encodedKey + ']');
+
+        sideChannel.set(object, step);
+        var valueSideChannel = getSideChannel();
+        valueSideChannel.set(sentinel, sideChannel);
+        pushToArray(values, stringify(
+            value,
+            keyPrefix,
+            generateArrayPrefix,
+            commaRoundTrip,
+            allowEmptyArrays,
+            strictNullHandling,
+            skipNulls,
+            encodeDotInKeys,
+            generateArrayPrefix === 'comma' && encodeValuesOnly && isArray(obj) ? null : encoder,
+            filter,
+            sort,
+            allowDots,
+            serializeDate,
+            format,
+            formatter,
+            encodeValuesOnly,
+            charset,
+            valueSideChannel
+        ));
+    }
+
+    return values;
+};
+
+var normalizeStringifyOptions = function normalizeStringifyOptions(opts) {
+    if (!opts) {
+        return defaults;
+    }
+
+    if (typeof opts.allowEmptyArrays !== 'undefined' && typeof opts.allowEmptyArrays !== 'boolean') {
+        throw new TypeError('`allowEmptyArrays` option can only be `true` or `false`, when provided');
+    }
+
+    if (typeof opts.encodeDotInKeys !== 'undefined' && typeof opts.encodeDotInKeys !== 'boolean') {
+        throw new TypeError('`encodeDotInKeys` option can only be `true` or `false`, when provided');
+    }
+
+    if (opts.encoder !== null && typeof opts.encoder !== 'undefined' && typeof opts.encoder !== 'function') {
+        throw new TypeError('Encoder has to be a function.');
+    }
+
+    var charset = opts.charset || defaults.charset;
+    if (typeof opts.charset !== 'undefined' && opts.charset !== 'utf-8' && opts.charset !== 'iso-8859-1') {
+        throw new TypeError('The charset option must be either utf-8, iso-8859-1, or undefined');
+    }
+
+    var format = formats['default'];
+    if (typeof opts.format !== 'undefined') {
+        if (!has.call(formats.formatters, opts.format)) {
+            throw new TypeError('Unknown format option provided.');
+        }
+        format = opts.format;
+    }
+    var formatter = formats.formatters[format];
+
+    var filter = defaults.filter;
+    if (typeof opts.filter === 'function' || isArray(opts.filter)) {
+        filter = opts.filter;
+    }
+
+    var arrayFormat;
+    if (opts.arrayFormat in arrayPrefixGenerators) {
+        arrayFormat = opts.arrayFormat;
+    } else if ('indices' in opts) {
+        arrayFormat = opts.indices ? 'indices' : 'repeat';
+    } else {
+        arrayFormat = defaults.arrayFormat;
+    }
+
+    if ('commaRoundTrip' in opts && typeof opts.commaRoundTrip !== 'boolean') {
+        throw new TypeError('`commaRoundTrip` must be a boolean, or absent');
+    }
+
+    var allowDots = typeof opts.allowDots === 'undefined' ? opts.encodeDotInKeys === true ? true : defaults.allowDots : !!opts.allowDots;
+
+    return {
+        addQueryPrefix: typeof opts.addQueryPrefix === 'boolean' ? opts.addQueryPrefix : defaults.addQueryPrefix,
+        allowDots: allowDots,
+        allowEmptyArrays: typeof opts.allowEmptyArrays === 'boolean' ? !!opts.allowEmptyArrays : defaults.allowEmptyArrays,
+        arrayFormat: arrayFormat,
+        charset: charset,
+        charsetSentinel: typeof opts.charsetSentinel === 'boolean' ? opts.charsetSentinel : defaults.charsetSentinel,
+        commaRoundTrip: !!opts.commaRoundTrip,
+        delimiter: typeof opts.delimiter === 'undefined' ? defaults.delimiter : opts.delimiter,
+        encode: typeof opts.encode === 'boolean' ? opts.encode : defaults.encode,
+        encodeDotInKeys: typeof opts.encodeDotInKeys === 'boolean' ? opts.encodeDotInKeys : defaults.encodeDotInKeys,
+        encoder: typeof opts.encoder === 'function' ? opts.encoder : defaults.encoder,
+        encodeValuesOnly: typeof opts.encodeValuesOnly === 'boolean' ? opts.encodeValuesOnly : defaults.encodeValuesOnly,
+        filter: filter,
+        format: format,
+        formatter: formatter,
+        serializeDate: typeof opts.serializeDate === 'function' ? opts.serializeDate : defaults.serializeDate,
+        skipNulls: typeof opts.skipNulls === 'boolean' ? opts.skipNulls : defaults.skipNulls,
+        sort: typeof opts.sort === 'function' ? opts.sort : null,
+        strictNullHandling: typeof opts.strictNullHandling === 'boolean' ? opts.strictNullHandling : defaults.strictNullHandling
+    };
+};
+
+module.exports = function (object, opts) {
+    var obj = object;
+    var options = normalizeStringifyOptions(opts);
+
+    var objKeys;
+    var filter;
+
+    if (typeof options.filter === 'function') {
+        filter = options.filter;
+        obj = filter('', obj);
+    } else if (isArray(options.filter)) {
+        filter = options.filter;
+        objKeys = filter;
+    }
+
+    var keys = [];
+
+    if (typeof obj !== 'object' || obj === null) {
+        return '';
+    }
+
+    var generateArrayPrefix = arrayPrefixGenerators[options.arrayFormat];
+    var commaRoundTrip = generateArrayPrefix === 'comma' && options.commaRoundTrip;
+
+    if (!objKeys) {
+        objKeys = Object.keys(obj);
+    }
+
+    if (options.sort) {
+        objKeys.sort(options.sort);
+    }
+
+    var sideChannel = getSideChannel();
+    for (var i = 0; i < objKeys.length; ++i) {
+        var key = objKeys[i];
+        var value = obj[key];
+
+        if (options.skipNulls && value === null) {
+            continue;
+        }
+        pushToArray(keys, stringify(
+            value,
+            key,
+            generateArrayPrefix,
+            commaRoundTrip,
+            options.allowEmptyArrays,
+            options.strictNullHandling,
+            options.skipNulls,
+            options.encodeDotInKeys,
+            options.encode ? options.encoder : null,
+            options.filter,
+            options.sort,
+            options.allowDots,
+            options.serializeDate,
+            options.format,
+            options.formatter,
+            options.encodeValuesOnly,
+            options.charset,
+            sideChannel
+        ));
+    }
+
+    var joined = keys.join(options.delimiter);
+    var prefix = options.addQueryPrefix === true ? '?' : '';
+
+    if (options.charsetSentinel) {
+        if (options.charset === 'iso-8859-1') {
+            // encodeURIComponent('&#10003;'), the "numeric entity" representation of a checkmark
+            prefix += 'utf8=%26%2310003%3B&';
+        } else {
+            // encodeURIComponent('✓')
+            prefix += 'utf8=%E2%9C%93&';
+        }
+    }
+
+    return joined.length > 0 ? prefix + joined : '';
+};
diff --git a/backend/node_modules/qs/lib/utils.js b/backend/node_modules/qs/lib/utils.js
new file mode 100644
index 0000000..2905ff0
--- /dev/null
+++ b/backend/node_modules/qs/lib/utils.js
@@ -0,0 +1,268 @@
+'use strict';
+
+var formats = require('./formats');
+
+var has = Object.prototype.hasOwnProperty;
+var isArray = Array.isArray;
+
+var hexTable = (function () {
+    var array = [];
+    for (var i = 0; i < 256; ++i) {
+        array.push('%' + ((i < 16 ? '0' : '') + i.toString(16)).toUpperCase());
+    }
+
+    return array;
+}());
+
+var compactQueue = function compactQueue(queue) {
+    while (queue.length > 1) {
+        var item = queue.pop();
+        var obj = item.obj[item.prop];
+
+        if (isArray(obj)) {
+            var compacted = [];
+
+            for (var j = 0; j < obj.length; ++j) {
+                if (typeof obj[j] !== 'undefined') {
+                    compacted.push(obj[j]);
+                }
+            }
+
+            item.obj[item.prop] = compacted;
+        }
+    }
+};
+
+var arrayToObject = function arrayToObject(source, options) {
+    var obj = options && options.plainObjects ? { __proto__: null } : {};
+    for (var i = 0; i < source.length; ++i) {
+        if (typeof source[i] !== 'undefined') {
+            obj[i] = source[i];
+        }
+    }
+
+    return obj;
+};
+
+var merge = function merge(target, source, options) {
+    /* eslint no-param-reassign: 0 */
+    if (!source) {
+        return target;
+    }
+
+    if (typeof source !== 'object' && typeof source !== 'function') {
+        if (isArray(target)) {
+            target.push(source);
+        } else if (target && typeof target === 'object') {
+            if (
+                (options && (options.plainObjects || options.allowPrototypes))
+                || !has.call(Object.prototype, source)
+            ) {
+                target[source] = true;
+            }
+        } else {
+            return [target, source];
+        }
+
+        return target;
+    }
+
+    if (!target || typeof target !== 'object') {
+        return [target].concat(source);
+    }
+
+    var mergeTarget = target;
+    if (isArray(target) && !isArray(source)) {
+        mergeTarget = arrayToObject(target, options);
+    }
+
+    if (isArray(target) && isArray(source)) {
+        source.forEach(function (item, i) {
+            if (has.call(target, i)) {
+                var targetItem = target[i];
+                if (targetItem && typeof targetItem === 'object' && item && typeof item === 'object') {
+                    target[i] = merge(targetItem, item, options);
+                } else {
+                    target.push(item);
+                }
+            } else {
+                target[i] = item;
+            }
+        });
+        return target;
+    }
+
+    return Object.keys(source).reduce(function (acc, key) {
+        var value = source[key];
+
+        if (has.call(acc, key)) {
+            acc[key] = merge(acc[key], value, options);
+        } else {
+            acc[key] = value;
+        }
+        return acc;
+    }, mergeTarget);
+};
+
+var assign = function assignSingleSource(target, source) {
+    return Object.keys(source).reduce(function (acc, key) {
+        acc[key] = source[key];
+        return acc;
+    }, target);
+};
+
+var decode = function (str, defaultDecoder, charset) {
+    var strWithoutPlus = str.replace(/\+/g, ' ');
+    if (charset === 'iso-8859-1') {
+        // unescape never throws, no try...catch needed:
+        return strWithoutPlus.replace(/%[0-9a-f]{2}/gi, unescape);
+    }
+    // utf-8
+    try {
+        return decodeURIComponent(strWithoutPlus);
+    } catch (e) {
+        return strWithoutPlus;
+    }
+};
+
+var limit = 1024;
+
+/* eslint operator-linebreak: [2, "before"] */
+
+var encode = function encode(str, defaultEncoder, charset, kind, format) {
+    // This code was originally written by Brian White (mscdex) for the io.js core querystring library.
+    // It has been adapted here for stricter adherence to RFC 3986
+    if (str.length === 0) {
+        return str;
+    }
+
+    var string = str;
+    if (typeof str === 'symbol') {
+        string = Symbol.prototype.toString.call(str);
+    } else if (typeof str !== 'string') {
+        string = String(str);
+    }
+
+    if (charset === 'iso-8859-1') {
+        return escape(string).replace(/%u[0-9a-f]{4}/gi, function ($0) {
+            return '%26%23' + parseInt($0.slice(2), 16) + '%3B';
+        });
+    }
+
+    var out = '';
+    for (var j = 0; j < string.length; j += limit) {
+        var segment = string.length >= limit ? string.slice(j, j + limit) : string;
+        var arr = [];
+
+        for (var i = 0; i < segment.length; ++i) {
+            var c = segment.charCodeAt(i);
+            if (
+                c === 0x2D // -
+                || c === 0x2E // .
+                || c === 0x5F // _
+                || c === 0x7E // ~
+                || (c >= 0x30 && c <= 0x39) // 0-9
+                || (c >= 0x41 && c <= 0x5A) // a-z
+                || (c >= 0x61 && c <= 0x7A) // A-Z
+                || (format === formats.RFC1738 && (c === 0x28 || c === 0x29)) // ( )
+            ) {
+                arr[arr.length] = segment.charAt(i);
+                continue;
+            }
+
+            if (c < 0x80) {
+                arr[arr.length] = hexTable[c];
+                continue;
+            }
+
+            if (c < 0x800) {
+                arr[arr.length] = hexTable[0xC0 | (c >> 6)]
+                    + hexTable[0x80 | (c & 0x3F)];
+                continue;
+            }
+
+            if (c < 0xD800 || c >= 0xE000) {
+                arr[arr.length] = hexTable[0xE0 | (c >> 12)]
+                    + hexTable[0x80 | ((c >> 6) & 0x3F)]
+                    + hexTable[0x80 | (c & 0x3F)];
+                continue;
+            }
+
+            i += 1;
+            c = 0x10000 + (((c & 0x3FF) << 10) | (segment.charCodeAt(i) & 0x3FF));
+
+            arr[arr.length] = hexTable[0xF0 | (c >> 18)]
+                + hexTable[0x80 | ((c >> 12) & 0x3F)]
+                + hexTable[0x80 | ((c >> 6) & 0x3F)]
+                + hexTable[0x80 | (c & 0x3F)];
+        }
+
+        out += arr.join('');
+    }
+
+    return out;
+};
+
+var compact = function compact(value) {
+    var queue = [{ obj: { o: value }, prop: 'o' }];
+    var refs = [];
+
+    for (var i = 0; i < queue.length; ++i) {
+        var item = queue[i];
+        var obj = item.obj[item.prop];
+
+        var keys = Object.keys(obj);
+        for (var j = 0; j < keys.length; ++j) {
+            var key = keys[j];
+            var val = obj[key];
+            if (typeof val === 'object' && val !== null && refs.indexOf(val) === -1) {
+                queue.push({ obj: obj, prop: key });
+                refs.push(val);
+            }
+        }
+    }
+
+    compactQueue(queue);
+
+    return value;
+};
+
+var isRegExp = function isRegExp(obj) {
+    return Object.prototype.toString.call(obj) === '[object RegExp]';
+};
+
+var isBuffer = function isBuffer(obj) {
+    if (!obj || typeof obj !== 'object') {
+        return false;
+    }
+
+    return !!(obj.constructor && obj.constructor.isBuffer && obj.constructor.isBuffer(obj));
+};
+
+var combine = function combine(a, b) {
+    return [].concat(a, b);
+};
+
+var maybeMap = function maybeMap(val, fn) {
+    if (isArray(val)) {
+        var mapped = [];
+        for (var i = 0; i < val.length; i += 1) {
+            mapped.push(fn(val[i]));
+        }
+        return mapped;
+    }
+    return fn(val);
+};
+
+module.exports = {
+    arrayToObject: arrayToObject,
+    assign: assign,
+    combine: combine,
+    compact: compact,
+    decode: decode,
+    encode: encode,
+    isBuffer: isBuffer,
+    isRegExp: isRegExp,
+    maybeMap: maybeMap,
+    merge: merge
+};
diff --git a/backend/node_modules/qs/package.json b/backend/node_modules/qs/package.json
new file mode 100644
index 0000000..e4144d0
--- /dev/null
+++ b/backend/node_modules/qs/package.json
@@ -0,0 +1,93 @@
+{
+    "name": "qs",
+    "description": "A querystring parser that supports nesting and arrays, with a depth limit",
+    "homepage": "https://github.com/ljharb/qs",
+    "version": "6.14.0",
+    "repository": {
+        "type": "git",
+        "url": "https://github.com/ljharb/qs.git"
+    },
+    "funding": {
+        "url": "https://github.com/sponsors/ljharb"
+    },
+    "main": "lib/index.js",
+    "sideEffects": false,
+    "contributors": [
+        {
+            "name": "Jordan Harband",
+            "email": "ljharb@gmail.com",
+            "url": "http://ljharb.codes"
+        }
+    ],
+    "keywords": [
+        "querystring",
+        "qs",
+        "query",
+        "url",
+        "parse",
+        "stringify"
+    ],
+    "engines": {
+        "node": ">=0.6"
+    },
+    "dependencies": {
+        "side-channel": "^1.1.0"
+    },
+    "devDependencies": {
+        "@browserify/envify": "^6.0.0",
+        "@browserify/uglifyify": "^6.0.0",
+        "@ljharb/eslint-config": "^21.1.1",
+        "browserify": "^16.5.2",
+        "bundle-collapser": "^1.4.0",
+        "common-shakeify": "~1.0.0",
+        "eclint": "^2.8.1",
+        "es-value-fixtures": "^1.7.0",
+        "eslint": "=8.8.0",
+        "evalmd": "^0.0.19",
+        "for-each": "^0.3.3",
+        "glob": "=10.3.7",
+        "has-bigints": "^1.1.0",
+        "has-override-mistake": "^1.0.1",
+        "has-property-descriptors": "^1.0.2",
+        "has-proto": "^1.2.0",
+        "has-symbols": "^1.1.0",
+        "iconv-lite": "^0.5.1",
+        "in-publish": "^2.0.1",
+        "jackspeak": "=2.1.1",
+        "mkdirp": "^0.5.5",
+        "mock-property": "^1.1.0",
+        "module-deps": "^6.2.3",
+        "npmignore": "^0.3.1",
+        "nyc": "^10.3.2",
+        "object-inspect": "^1.13.3",
+        "qs-iconv": "^1.0.4",
+        "safe-publish-latest": "^2.0.0",
+        "safer-buffer": "^2.1.2",
+        "tape": "^5.9.0",
+        "unassertify": "^3.0.1"
+    },
+    "scripts": {
+        "prepack": "npmignore --auto --commentLines=autogenerated && npm run dist",
+        "prepublishOnly": "safe-publish-latest",
+        "prepublish": "not-in-publish || npm run prepublishOnly",
+        "pretest": "npm run --silent readme && npm run --silent lint",
+        "test": "npm run tests-only",
+        "tests-only": "nyc tape 'test/**/*.js'",
+        "posttest": "npx npm@'>=10.2' audit --production",
+        "readme": "evalmd README.md",
+        "postlint": "eclint check $(git ls-files | xargs find 2> /dev/null | grep -vE 'node_modules|\\.git' | grep -v dist/)",
+        "lint": "eslint --ext=js,mjs .",
+        "dist": "mkdirp dist && browserify --standalone Qs -g unassertify -g @browserify/envify -g [@browserify/uglifyify --mangle.keep_fnames --compress.keep_fnames --format.indent_level=1 --compress.arrows=false --compress.passes=4 --compress.typeofs=false] -p common-shakeify -p bundle-collapser/plugin lib/index.js > dist/qs.js"
+    },
+    "license": "BSD-3-Clause",
+    "publishConfig": {
+        "ignore": [
+            "!dist/*",
+            "bower.json",
+            "component.json",
+            ".github/workflows",
+            "logos",
+            "tea.yaml"
+        ]
+    }
+}
diff --git a/backend/node_modules/qs/test/empty-keys-cases.js b/backend/node_modules/qs/test/empty-keys-cases.js
new file mode 100644
index 0000000..2b1190e
--- /dev/null
+++ b/backend/node_modules/qs/test/empty-keys-cases.js
@@ -0,0 +1,267 @@
+'use strict';
+
+module.exports = {
+    emptyTestCases: [
+        {
+            input: '&',
+            withEmptyKeys: {},
+            stringifyOutput: {
+                brackets: '',
+                indices: '',
+                repeat: ''
+            },
+            noEmptyKeys: {}
+        },
+        {
+            input: '&&',
+            withEmptyKeys: {},
+            stringifyOutput: {
+                brackets: '',
+                indices: '',
+                repeat: ''
+            },
+            noEmptyKeys: {}
+        },
+        {
+            input: '&=',
+            withEmptyKeys: { '': '' },
+            stringifyOutput: {
+                brackets: '=',
+                indices: '=',
+                repeat: '='
+            },
+            noEmptyKeys: {}
+        },
+        {
+            input: '&=&',
+            withEmptyKeys: { '': '' },
+            stringifyOutput: {
+                brackets: '=',
+                indices: '=',
+                repeat: '='
+            },
+            noEmptyKeys: {}
+        },
+        {
+            input: '&=&=',
+            withEmptyKeys: { '': ['', ''] },
+            stringifyOutput: {
+                brackets: '[]=&[]=',
+                indices: '[0]=&[1]=',
+                repeat: '=&='
+            },
+            noEmptyKeys: {}
+        },
+        {
+            input: '&=&=&',
+            withEmptyKeys: { '': ['', ''] },
+            stringifyOutput: {
+                brackets: '[]=&[]=',
+                indices: '[0]=&[1]=',
+                repeat: '=&='
+            },
+            noEmptyKeys: {}
+        },
+        {
+            input: '=',
+            withEmptyKeys: { '': '' },
+            noEmptyKeys: {},
+            stringifyOutput: {
+                brackets: '=',
+                indices: '=',
+                repeat: '='
+            }
+        },
+        {
+            input: '=&',
+            withEmptyKeys: { '': '' },
+            stringifyOutput: {
+                brackets: '=',
+                indices: '=',
+                repeat: '='
+            },
+            noEmptyKeys: {}
+        },
+        {
+            input: '=&&&',
+            withEmptyKeys: { '': '' },
+            stringifyOutput: {
+                brackets: '=',
+                indices: '=',
+                repeat: '='
+            },
+            noEmptyKeys: {}
+        },
+        {
+            input: '=&=&=&',
+            withEmptyKeys: { '': ['', '', ''] },
+            stringifyOutput: {
+                brackets: '[]=&[]=&[]=',
+                indices: '[0]=&[1]=&[2]=',
+                repeat: '=&=&='
+            },
+            noEmptyKeys: {}
+        },
+        {
+            input: '=&a[]=b&a[1]=c',
+            withEmptyKeys: { '': '', a: ['b', 'c'] },
+            stringifyOutput: {
+                brackets: '=&a[]=b&a[]=c',
+                indices: '=&a[0]=b&a[1]=c',
+                repeat: '=&a=b&a=c'
+            },
+            noEmptyKeys: { a: ['b', 'c'] }
+        },
+        {
+            input: '=a',
+            withEmptyKeys: { '': 'a' },
+            noEmptyKeys: {},
+            stringifyOutput: {
+                brackets: '=a',
+                indices: '=a',
+                repeat: '=a'
+            }
+        },
+        {
+            input: 'a==a',
+            withEmptyKeys: { a: '=a' },
+            noEmptyKeys: { a: '=a' },
+            stringifyOutput: {
+                brackets: 'a==a',
+                indices: 'a==a',
+                repeat: 'a==a'
+            }
+        },
+        {
+            input: '=&a[]=b',
+            withEmptyKeys: { '': '', a: ['b'] },
+            stringifyOutput: {
+                brackets: '=&a[]=b',
+                indices: '=&a[0]=b',
+                repeat: '=&a=b'
+            },
+            noEmptyKeys: { a: ['b'] }
+        },
+        {
+            input: '=&a[]=b&a[]=c&a[2]=d',
+            withEmptyKeys: { '': '', a: ['b', 'c', 'd'] },
+            stringifyOutput: {
+                brackets: '=&a[]=b&a[]=c&a[]=d',
+                indices: '=&a[0]=b&a[1]=c&a[2]=d',
+                repeat: '=&a=b&a=c&a=d'
+            },
+            noEmptyKeys: { a: ['b', 'c', 'd'] }
+        },
+        {
+            input: '=a&=b',
+            withEmptyKeys: { '': ['a', 'b'] },
+            stringifyOutput: {
+                brackets: '[]=a&[]=b',
+                indices: '[0]=a&[1]=b',
+                repeat: '=a&=b'
+            },
+            noEmptyKeys: {}
+        },
+        {
+            input: '=a&foo=b',
+            withEmptyKeys: { '': 'a', foo: 'b' },
+            noEmptyKeys: { foo: 'b' },
+            stringifyOutput: {
+                brackets: '=a&foo=b',
+                indices: '=a&foo=b',
+                repeat: '=a&foo=b'
+            }
+        },
+        {
+            input: 'a[]=b&a=c&=',
+            withEmptyKeys: { '': '', a: ['b', 'c'] },
+            stringifyOutput: {
+                brackets: '=&a[]=b&a[]=c',
+                indices: '=&a[0]=b&a[1]=c',
+                repeat: '=&a=b&a=c'
+            },
+            noEmptyKeys: { a: ['b', 'c'] }
+        },
+        {
+            input: 'a[]=b&a=c&=',
+            withEmptyKeys: { '': '', a: ['b', 'c'] },
+            stringifyOutput: {
+                brackets: '=&a[]=b&a[]=c',
+                indices: '=&a[0]=b&a[1]=c',
+                repeat: '=&a=b&a=c'
+            },
+            noEmptyKeys: { a: ['b', 'c'] }
+        },
+        {
+            input: 'a[0]=b&a=c&=',
+            withEmptyKeys: { '': '', a: ['b', 'c'] },
+            stringifyOutput: {
+                brackets: '=&a[]=b&a[]=c',
+                indices: '=&a[0]=b&a[1]=c',
+                repeat: '=&a=b&a=c'
+            },
+            noEmptyKeys: { a: ['b', 'c'] }
+        },
+        {
+            input: 'a=b&a[]=c&=',
+            withEmptyKeys: { '': '', a: ['b', 'c'] },
+            stringifyOutput: {
+                brackets: '=&a[]=b&a[]=c',
+                indices: '=&a[0]=b&a[1]=c',
+                repeat: '=&a=b&a=c'
+            },
+            noEmptyKeys: { a: ['b', 'c'] }
+        },
+        {
+            input: 'a=b&a[0]=c&=',
+            withEmptyKeys: { '': '', a: ['b', 'c'] },
+            stringifyOutput: {
+                brackets: '=&a[]=b&a[]=c',
+                indices: '=&a[0]=b&a[1]=c',
+                repeat: '=&a=b&a=c'
+            },
+            noEmptyKeys: { a: ['b', 'c'] }
+        },
+        {
+            input: '[]=a&[]=b& []=1',
+            withEmptyKeys: { '': ['a', 'b'], ' ': ['1'] },
+            stringifyOutput: {
+                brackets: '[]=a&[]=b& []=1',
+                indices: '[0]=a&[1]=b& [0]=1',
+                repeat: '=a&=b& =1'
+            },
+            noEmptyKeys: { 0: 'a', 1: 'b', ' ': ['1'] }
+        },
+        {
+            input: '[0]=a&[1]=b&a[0]=1&a[1]=2',
+            withEmptyKeys: { '': ['a', 'b'], a: ['1', '2'] },
+            noEmptyKeys: { 0: 'a', 1: 'b', a: ['1', '2'] },
+            stringifyOutput: {
+                brackets: '[]=a&[]=b&a[]=1&a[]=2',
+                indices: '[0]=a&[1]=b&a[0]=1&a[1]=2',
+                repeat: '=a&=b&a=1&a=2'
+            }
+        },
+        {
+            input: '[deep]=a&[deep]=2',
+            withEmptyKeys: { '': { deep: ['a', '2'] }
+            },
+            stringifyOutput: {
+                brackets: '[deep][]=a&[deep][]=2',
+                indices: '[deep][0]=a&[deep][1]=2',
+                repeat: '[deep]=a&[deep]=2'
+            },
+            noEmptyKeys: { deep: ['a', '2'] }
+        },
+        {
+            input: '%5B0%5D=a&%5B1%5D=b',
+            withEmptyKeys: { '': ['a', 'b'] },
+            stringifyOutput: {
+                brackets: '[]=a&[]=b',
+                indices: '[0]=a&[1]=b',
+                repeat: '=a&=b'
+            },
+            noEmptyKeys: { 0: 'a', 1: 'b' }
+        }
+    ]
+};
diff --git a/backend/node_modules/qs/test/parse.js b/backend/node_modules/qs/test/parse.js
new file mode 100644
index 0000000..32cdfd8
--- /dev/null
+++ b/backend/node_modules/qs/test/parse.js
@@ -0,0 +1,1276 @@
+'use strict';
+
+var test = require('tape');
+var hasPropertyDescriptors = require('has-property-descriptors')();
+var iconv = require('iconv-lite');
+var mockProperty = require('mock-property');
+var hasOverrideMistake = require('has-override-mistake')();
+var SaferBuffer = require('safer-buffer').Buffer;
+var v = require('es-value-fixtures');
+var inspect = require('object-inspect');
+var emptyTestCases = require('./empty-keys-cases').emptyTestCases;
+var hasProto = require('has-proto')();
+
+var qs = require('../');
+var utils = require('../lib/utils');
+
+test('parse()', function (t) {
+    t.test('parses a simple string', function (st) {
+        st.deepEqual(qs.parse('0=foo'), { 0: 'foo' });
+        st.deepEqual(qs.parse('foo=c++'), { foo: 'c  ' });
+        st.deepEqual(qs.parse('a[>=]=23'), { a: { '>=': '23' } });
+        st.deepEqual(qs.parse('a[<=>]==23'), { a: { '<=>': '=23' } });
+        st.deepEqual(qs.parse('a[==]=23'), { a: { '==': '23' } });
+        st.deepEqual(qs.parse('foo', { strictNullHandling: true }), { foo: null });
+        st.deepEqual(qs.parse('foo'), { foo: '' });
+        st.deepEqual(qs.parse('foo='), { foo: '' });
+        st.deepEqual(qs.parse('foo=bar'), { foo: 'bar' });
+        st.deepEqual(qs.parse(' foo = bar = baz '), { ' foo ': ' bar = baz ' });
+        st.deepEqual(qs.parse('foo=bar=baz'), { foo: 'bar=baz' });
+        st.deepEqual(qs.parse('foo=bar&bar=baz'), { foo: 'bar', bar: 'baz' });
+        st.deepEqual(qs.parse('foo2=bar2&baz2='), { foo2: 'bar2', baz2: '' });
+        st.deepEqual(qs.parse('foo=bar&baz', { strictNullHandling: true }), { foo: 'bar', baz: null });
+        st.deepEqual(qs.parse('foo=bar&baz'), { foo: 'bar', baz: '' });
+        st.deepEqual(qs.parse('cht=p3&chd=t:60,40&chs=250x100&chl=Hello|World'), {
+            cht: 'p3',
+            chd: 't:60,40',
+            chs: '250x100',
+            chl: 'Hello|World'
+        });
+        st.end();
+    });
+
+    t.test('comma: false', function (st) {
+        st.deepEqual(qs.parse('a[]=b&a[]=c'), { a: ['b', 'c'] });
+        st.deepEqual(qs.parse('a[0]=b&a[1]=c'), { a: ['b', 'c'] });
+        st.deepEqual(qs.parse('a=b,c'), { a: 'b,c' });
+        st.deepEqual(qs.parse('a=b&a=c'), { a: ['b', 'c'] });
+        st.end();
+    });
+
+    t.test('comma: true', function (st) {
+        st.deepEqual(qs.parse('a[]=b&a[]=c', { comma: true }), { a: ['b', 'c'] });
+        st.deepEqual(qs.parse('a[0]=b&a[1]=c', { comma: true }), { a: ['b', 'c'] });
+        st.deepEqual(qs.parse('a=b,c', { comma: true }), { a: ['b', 'c'] });
+        st.deepEqual(qs.parse('a=b&a=c', { comma: true }), { a: ['b', 'c'] });
+        st.end();
+    });
+
+    t.test('allows enabling dot notation', function (st) {
+        st.deepEqual(qs.parse('a.b=c'), { 'a.b': 'c' });
+        st.deepEqual(qs.parse('a.b=c', { allowDots: true }), { a: { b: 'c' } });
+
+        st.end();
+    });
+
+    t.test('decode dot keys correctly', function (st) {
+        st.deepEqual(
+            qs.parse('name%252Eobj.first=John&name%252Eobj.last=Doe', { allowDots: false, decodeDotInKeys: false }),
+            { 'name%2Eobj.first': 'John', 'name%2Eobj.last': 'Doe' },
+            'with allowDots false and decodeDotInKeys false'
+        );
+        st.deepEqual(
+            qs.parse('name.obj.first=John&name.obj.last=Doe', { allowDots: true, decodeDotInKeys: false }),
+            { name: { obj: { first: 'John', last: 'Doe' } } },
+            'with allowDots false and decodeDotInKeys false'
+        );
+        st.deepEqual(
+            qs.parse('name%252Eobj.first=John&name%252Eobj.last=Doe', { allowDots: true, decodeDotInKeys: false }),
+            { 'name%2Eobj': { first: 'John', last: 'Doe' } },
+            'with allowDots true and decodeDotInKeys false'
+        );
+        st.deepEqual(
+            qs.parse('name%252Eobj.first=John&name%252Eobj.last=Doe', { allowDots: true, decodeDotInKeys: true }),
+            { 'name.obj': { first: 'John', last: 'Doe' } },
+            'with allowDots true and decodeDotInKeys true'
+        );
+
+        st.deepEqual(
+            qs.parse(
+                'name%252Eobj%252Esubobject.first%252Egodly%252Ename=John&name%252Eobj%252Esubobject.last=Doe',
+                { allowDots: false, decodeDotInKeys: false }
+            ),
+            { 'name%2Eobj%2Esubobject.first%2Egodly%2Ename': 'John', 'name%2Eobj%2Esubobject.last': 'Doe' },
+            'with allowDots false and decodeDotInKeys false'
+        );
+        st.deepEqual(
+            qs.parse(
+                'name.obj.subobject.first.godly.name=John&name.obj.subobject.last=Doe',
+                { allowDots: true, decodeDotInKeys: false }
+            ),
+            { name: { obj: { subobject: { first: { godly: { name: 'John' } }, last: 'Doe' } } } },
+            'with allowDots true and decodeDotInKeys false'
+        );
+        st.deepEqual(
+            qs.parse(
+                'name%252Eobj%252Esubobject.first%252Egodly%252Ename=John&name%252Eobj%252Esubobject.last=Doe',
+                { allowDots: true, decodeDotInKeys: true }
+            ),
+            { 'name.obj.subobject': { 'first.godly.name': 'John', last: 'Doe' } },
+            'with allowDots true and decodeDotInKeys true'
+        );
+        st.deepEqual(
+            qs.parse('name%252Eobj.first=John&name%252Eobj.last=Doe'),
+            { 'name%2Eobj.first': 'John', 'name%2Eobj.last': 'Doe' },
+            'with allowDots and decodeDotInKeys undefined'
+        );
+
+        st.end();
+    });
+
+    t.test('decodes dot in key of object, and allow enabling dot notation when decodeDotInKeys is set to true and allowDots is undefined', function (st) {
+        st.deepEqual(
+            qs.parse(
+                'name%252Eobj%252Esubobject.first%252Egodly%252Ename=John&name%252Eobj%252Esubobject.last=Doe',
+                { decodeDotInKeys: true }
+            ),
+            { 'name.obj.subobject': { 'first.godly.name': 'John', last: 'Doe' } },
+            'with allowDots undefined and decodeDotInKeys true'
+        );
+
+        st.end();
+    });
+
+    t.test('throws when decodeDotInKeys is not of type boolean', function (st) {
+        st['throws'](
+            function () { qs.parse('foo[]&bar=baz', { decodeDotInKeys: 'foobar' }); },
+            TypeError
+        );
+
+        st['throws'](
+            function () { qs.parse('foo[]&bar=baz', { decodeDotInKeys: 0 }); },
+            TypeError
+        );
+        st['throws'](
+            function () { qs.parse('foo[]&bar=baz', { decodeDotInKeys: NaN }); },
+            TypeError
+        );
+
+        st['throws'](
+            function () { qs.parse('foo[]&bar=baz', { decodeDotInKeys: null }); },
+            TypeError
+        );
+
+        st.end();
+    });
+
+    t.test('allows empty arrays in obj values', function (st) {
+        st.deepEqual(qs.parse('foo[]&bar=baz', { allowEmptyArrays: true }), { foo: [], bar: 'baz' });
+        st.deepEqual(qs.parse('foo[]&bar=baz', { allowEmptyArrays: false }), { foo: [''], bar: 'baz' });
+
+        st.end();
+    });
+
+    t.test('throws when allowEmptyArrays is not of type boolean', function (st) {
+        st['throws'](
+            function () { qs.parse('foo[]&bar=baz', { allowEmptyArrays: 'foobar' }); },
+            TypeError
+        );
+
+        st['throws'](
+            function () { qs.parse('foo[]&bar=baz', { allowEmptyArrays: 0 }); },
+            TypeError
+        );
+        st['throws'](
+            function () { qs.parse('foo[]&bar=baz', { allowEmptyArrays: NaN }); },
+            TypeError
+        );
+
+        st['throws'](
+            function () { qs.parse('foo[]&bar=baz', { allowEmptyArrays: null }); },
+            TypeError
+        );
+
+        st.end();
+    });
+
+    t.test('allowEmptyArrays + strictNullHandling', function (st) {
+        st.deepEqual(
+            qs.parse('testEmptyArray[]', { strictNullHandling: true, allowEmptyArrays: true }),
+            { testEmptyArray: [] }
+        );
+
+        st.end();
+    });
+
+    t.deepEqual(qs.parse('a[b]=c'), { a: { b: 'c' } }, 'parses a single nested string');
+    t.deepEqual(qs.parse('a[b][c]=d'), { a: { b: { c: 'd' } } }, 'parses a double nested string');
+    t.deepEqual(
+        qs.parse('a[b][c][d][e][f][g][h]=i'),
+        { a: { b: { c: { d: { e: { f: { '[g][h]': 'i' } } } } } } },
+        'defaults to a depth of 5'
+    );
+
+    t.test('only parses one level when depth = 1', function (st) {
+        st.deepEqual(qs.parse('a[b][c]=d', { depth: 1 }), { a: { b: { '[c]': 'd' } } });
+        st.deepEqual(qs.parse('a[b][c][d]=e', { depth: 1 }), { a: { b: { '[c][d]': 'e' } } });
+        st.end();
+    });
+
+    t.test('uses original key when depth = 0', function (st) {
+        st.deepEqual(qs.parse('a[0]=b&a[1]=c', { depth: 0 }), { 'a[0]': 'b', 'a[1]': 'c' });
+        st.deepEqual(qs.parse('a[0][0]=b&a[0][1]=c&a[1]=d&e=2', { depth: 0 }), { 'a[0][0]': 'b', 'a[0][1]': 'c', 'a[1]': 'd', e: '2' });
+        st.end();
+    });
+
+    t.test('uses original key when depth = false', function (st) {
+        st.deepEqual(qs.parse('a[0]=b&a[1]=c', { depth: false }), { 'a[0]': 'b', 'a[1]': 'c' });
+        st.deepEqual(qs.parse('a[0][0]=b&a[0][1]=c&a[1]=d&e=2', { depth: false }), { 'a[0][0]': 'b', 'a[0][1]': 'c', 'a[1]': 'd', e: '2' });
+        st.end();
+    });
+
+    t.deepEqual(qs.parse('a=b&a=c'), { a: ['b', 'c'] }, 'parses a simple array');
+
+    t.test('parses an explicit array', function (st) {
+        st.deepEqual(qs.parse('a[]=b'), { a: ['b'] });
+        st.deepEqual(qs.parse('a[]=b&a[]=c'), { a: ['b', 'c'] });
+        st.deepEqual(qs.parse('a[]=b&a[]=c&a[]=d'), { a: ['b', 'c', 'd'] });
+        st.end();
+    });
+
+    t.test('parses a mix of simple and explicit arrays', function (st) {
+        st.deepEqual(qs.parse('a=b&a[]=c'), { a: ['b', 'c'] });
+        st.deepEqual(qs.parse('a[]=b&a=c'), { a: ['b', 'c'] });
+        st.deepEqual(qs.parse('a[0]=b&a=c'), { a: ['b', 'c'] });
+        st.deepEqual(qs.parse('a=b&a[0]=c'), { a: ['b', 'c'] });
+
+        st.deepEqual(qs.parse('a[1]=b&a=c', { arrayLimit: 20 }), { a: ['b', 'c'] });
+        st.deepEqual(qs.parse('a[]=b&a=c', { arrayLimit: 0 }), { a: ['b', 'c'] });
+        st.deepEqual(qs.parse('a[]=b&a=c'), { a: ['b', 'c'] });
+
+        st.deepEqual(qs.parse('a=b&a[1]=c', { arrayLimit: 20 }), { a: ['b', 'c'] });
+        st.deepEqual(qs.parse('a=b&a[]=c', { arrayLimit: 0 }), { a: ['b', 'c'] });
+        st.deepEqual(qs.parse('a=b&a[]=c'), { a: ['b', 'c'] });
+
+        st.end();
+    });
+
+    t.test('parses a nested array', function (st) {
+        st.deepEqual(qs.parse('a[b][]=c&a[b][]=d'), { a: { b: ['c', 'd'] } });
+        st.deepEqual(qs.parse('a[>=]=25'), { a: { '>=': '25' } });
+        st.end();
+    });
+
+    t.test('allows to specify array indices', function (st) {
+        st.deepEqual(qs.parse('a[1]=c&a[0]=b&a[2]=d'), { a: ['b', 'c', 'd'] });
+        st.deepEqual(qs.parse('a[1]=c&a[0]=b'), { a: ['b', 'c'] });
+        st.deepEqual(qs.parse('a[1]=c', { arrayLimit: 20 }), { a: ['c'] });
+        st.deepEqual(qs.parse('a[1]=c', { arrayLimit: 0 }), { a: { 1: 'c' } });
+        st.deepEqual(qs.parse('a[1]=c'), { a: ['c'] });
+        st.end();
+    });
+
+    t.test('limits specific array indices to arrayLimit', function (st) {
+        st.deepEqual(qs.parse('a[20]=a', { arrayLimit: 20 }), { a: ['a'] });
+        st.deepEqual(qs.parse('a[21]=a', { arrayLimit: 20 }), { a: { 21: 'a' } });
+
+        st.deepEqual(qs.parse('a[20]=a'), { a: ['a'] });
+        st.deepEqual(qs.parse('a[21]=a'), { a: { 21: 'a' } });
+        st.end();
+    });
+
+    t.deepEqual(qs.parse('a[12b]=c'), { a: { '12b': 'c' } }, 'supports keys that begin with a number');
+
+    t.test('supports encoded = signs', function (st) {
+        st.deepEqual(qs.parse('he%3Dllo=th%3Dere'), { 'he=llo': 'th=ere' });
+        st.end();
+    });
+
+    t.test('is ok with url encoded strings', function (st) {
+        st.deepEqual(qs.parse('a[b%20c]=d'), { a: { 'b c': 'd' } });
+        st.deepEqual(qs.parse('a[b]=c%20d'), { a: { b: 'c d' } });
+        st.end();
+    });
+
+    t.test('allows brackets in the value', function (st) {
+        st.deepEqual(qs.parse('pets=["tobi"]'), { pets: '["tobi"]' });
+        st.deepEqual(qs.parse('operators=[">=", "<="]'), { operators: '[">=", "<="]' });
+        st.end();
+    });
+
+    t.test('allows empty values', function (st) {
+        st.deepEqual(qs.parse(''), {});
+        st.deepEqual(qs.parse(null), {});
+        st.deepEqual(qs.parse(undefined), {});
+        st.end();
+    });
+
+    t.test('transforms arrays to objects', function (st) {
+        st.deepEqual(qs.parse('foo[0]=bar&foo[bad]=baz'), { foo: { 0: 'bar', bad: 'baz' } });
+        st.deepEqual(qs.parse('foo[bad]=baz&foo[0]=bar'), { foo: { bad: 'baz', 0: 'bar' } });
+        st.deepEqual(qs.parse('foo[bad]=baz&foo[]=bar'), { foo: { bad: 'baz', 0: 'bar' } });
+        st.deepEqual(qs.parse('foo[]=bar&foo[bad]=baz'), { foo: { 0: 'bar', bad: 'baz' } });
+        st.deepEqual(qs.parse('foo[bad]=baz&foo[]=bar&foo[]=foo'), { foo: { bad: 'baz', 0: 'bar', 1: 'foo' } });
+        st.deepEqual(qs.parse('foo[0][a]=a&foo[0][b]=b&foo[1][a]=aa&foo[1][b]=bb'), { foo: [{ a: 'a', b: 'b' }, { a: 'aa', b: 'bb' }] });
+
+        st.deepEqual(qs.parse('a[]=b&a[t]=u&a[hasOwnProperty]=c', { allowPrototypes: false }), { a: { 0: 'b', t: 'u' } });
+        st.deepEqual(qs.parse('a[]=b&a[t]=u&a[hasOwnProperty]=c', { allowPrototypes: true }), { a: { 0: 'b', t: 'u', hasOwnProperty: 'c' } });
+        st.deepEqual(qs.parse('a[]=b&a[hasOwnProperty]=c&a[x]=y', { allowPrototypes: false }), { a: { 0: 'b', x: 'y' } });
+        st.deepEqual(qs.parse('a[]=b&a[hasOwnProperty]=c&a[x]=y', { allowPrototypes: true }), { a: { 0: 'b', hasOwnProperty: 'c', x: 'y' } });
+        st.end();
+    });
+
+    t.test('transforms arrays to objects (dot notation)', function (st) {
+        st.deepEqual(qs.parse('foo[0].baz=bar&fool.bad=baz', { allowDots: true }), { foo: [{ baz: 'bar' }], fool: { bad: 'baz' } });
+        st.deepEqual(qs.parse('foo[0].baz=bar&fool.bad.boo=baz', { allowDots: true }), { foo: [{ baz: 'bar' }], fool: { bad: { boo: 'baz' } } });
+        st.deepEqual(qs.parse('foo[0][0].baz=bar&fool.bad=baz', { allowDots: true }), { foo: [[{ baz: 'bar' }]], fool: { bad: 'baz' } });
+        st.deepEqual(qs.parse('foo[0].baz[0]=15&foo[0].bar=2', { allowDots: true }), { foo: [{ baz: ['15'], bar: '2' }] });
+        st.deepEqual(qs.parse('foo[0].baz[0]=15&foo[0].baz[1]=16&foo[0].bar=2', { allowDots: true }), { foo: [{ baz: ['15', '16'], bar: '2' }] });
+        st.deepEqual(qs.parse('foo.bad=baz&foo[0]=bar', { allowDots: true }), { foo: { bad: 'baz', 0: 'bar' } });
+        st.deepEqual(qs.parse('foo.bad=baz&foo[]=bar', { allowDots: true }), { foo: { bad: 'baz', 0: 'bar' } });
+        st.deepEqual(qs.parse('foo[]=bar&foo.bad=baz', { allowDots: true }), { foo: { 0: 'bar', bad: 'baz' } });
+        st.deepEqual(qs.parse('foo.bad=baz&foo[]=bar&foo[]=foo', { allowDots: true }), { foo: { bad: 'baz', 0: 'bar', 1: 'foo' } });
+        st.deepEqual(qs.parse('foo[0].a=a&foo[0].b=b&foo[1].a=aa&foo[1].b=bb', { allowDots: true }), { foo: [{ a: 'a', b: 'b' }, { a: 'aa', b: 'bb' }] });
+        st.end();
+    });
+
+    t.test('correctly prunes undefined values when converting an array to an object', function (st) {
+        st.deepEqual(qs.parse('a[2]=b&a[99999999]=c'), { a: { 2: 'b', 99999999: 'c' } });
+        st.end();
+    });
+
+    t.test('supports malformed uri characters', function (st) {
+        st.deepEqual(qs.parse('{%:%}', { strictNullHandling: true }), { '{%:%}': null });
+        st.deepEqual(qs.parse('{%:%}='), { '{%:%}': '' });
+        st.deepEqual(qs.parse('foo=%:%}'), { foo: '%:%}' });
+        st.end();
+    });
+
+    t.test('doesn\'t produce empty keys', function (st) {
+        st.deepEqual(qs.parse('_r=1&'), { _r: '1' });
+        st.end();
+    });
+
+    t.test('cannot access Object prototype', function (st) {
+        qs.parse('constructor[prototype][bad]=bad');
+        qs.parse('bad[constructor][prototype][bad]=bad');
+        st.equal(typeof Object.prototype.bad, 'undefined');
+        st.end();
+    });
+
+    t.test('parses arrays of objects', function (st) {
+        st.deepEqual(qs.parse('a[][b]=c'), { a: [{ b: 'c' }] });
+        st.deepEqual(qs.parse('a[0][b]=c'), { a: [{ b: 'c' }] });
+        st.end();
+    });
+
+    t.test('allows for empty strings in arrays', function (st) {
+        st.deepEqual(qs.parse('a[]=b&a[]=&a[]=c'), { a: ['b', '', 'c'] });
+
+        st.deepEqual(
+            qs.parse('a[0]=b&a[1]&a[2]=c&a[19]=', { strictNullHandling: true, arrayLimit: 20 }),
+            { a: ['b', null, 'c', ''] },
+            'with arrayLimit 20 + array indices: null then empty string works'
+        );
+        st.deepEqual(
+            qs.parse('a[]=b&a[]&a[]=c&a[]=', { strictNullHandling: true, arrayLimit: 0 }),
+            { a: ['b', null, 'c', ''] },
+            'with arrayLimit 0 + array brackets: null then empty string works'
+        );
+
+        st.deepEqual(
+            qs.parse('a[0]=b&a[1]=&a[2]=c&a[19]', { strictNullHandling: true, arrayLimit: 20 }),
+            { a: ['b', '', 'c', null] },
+            'with arrayLimit 20 + array indices: empty string then null works'
+        );
+        st.deepEqual(
+            qs.parse('a[]=b&a[]=&a[]=c&a[]', { strictNullHandling: true, arrayLimit: 0 }),
+            { a: ['b', '', 'c', null] },
+            'with arrayLimit 0 + array brackets: empty string then null works'
+        );
+
+        st.deepEqual(
+            qs.parse('a[]=&a[]=b&a[]=c'),
+            { a: ['', 'b', 'c'] },
+            'array brackets: empty strings work'
+        );
+        st.end();
+    });
+
+    t.test('compacts sparse arrays', function (st) {
+        st.deepEqual(qs.parse('a[10]=1&a[2]=2', { arrayLimit: 20 }), { a: ['2', '1'] });
+        st.deepEqual(qs.parse('a[1][b][2][c]=1', { arrayLimit: 20 }), { a: [{ b: [{ c: '1' }] }] });
+        st.deepEqual(qs.parse('a[1][2][3][c]=1', { arrayLimit: 20 }), { a: [[[{ c: '1' }]]] });
+        st.deepEqual(qs.parse('a[1][2][3][c][1]=1', { arrayLimit: 20 }), { a: [[[{ c: ['1'] }]]] });
+        st.end();
+    });
+
+    t.test('parses sparse arrays', function (st) {
+        /* eslint no-sparse-arrays: 0 */
+        st.deepEqual(qs.parse('a[4]=1&a[1]=2', { allowSparse: true }), { a: [, '2', , , '1'] });
+        st.deepEqual(qs.parse('a[1][b][2][c]=1', { allowSparse: true }), { a: [, { b: [, , { c: '1' }] }] });
+        st.deepEqual(qs.parse('a[1][2][3][c]=1', { allowSparse: true }), { a: [, [, , [, , , { c: '1' }]]] });
+        st.deepEqual(qs.parse('a[1][2][3][c][1]=1', { allowSparse: true }), { a: [, [, , [, , , { c: [, '1'] }]]] });
+        st.end();
+    });
+
+    t.test('parses semi-parsed strings', function (st) {
+        st.deepEqual(qs.parse({ 'a[b]': 'c' }), { a: { b: 'c' } });
+        st.deepEqual(qs.parse({ 'a[b]': 'c', 'a[d]': 'e' }), { a: { b: 'c', d: 'e' } });
+        st.end();
+    });
+
+    t.test('parses buffers correctly', function (st) {
+        var b = SaferBuffer.from('test');
+        st.deepEqual(qs.parse({ a: b }), { a: b });
+        st.end();
+    });
+
+    t.test('parses jquery-param strings', function (st) {
+        // readable = 'filter[0][]=int1&filter[0][]==&filter[0][]=77&filter[]=and&filter[2][]=int2&filter[2][]==&filter[2][]=8'
+        var encoded = 'filter%5B0%5D%5B%5D=int1&filter%5B0%5D%5B%5D=%3D&filter%5B0%5D%5B%5D=77&filter%5B%5D=and&filter%5B2%5D%5B%5D=int2&filter%5B2%5D%5B%5D=%3D&filter%5B2%5D%5B%5D=8';
+        var expected = { filter: [['int1', '=', '77'], 'and', ['int2', '=', '8']] };
+        st.deepEqual(qs.parse(encoded), expected);
+        st.end();
+    });
+
+    t.test('continues parsing when no parent is found', function (st) {
+        st.deepEqual(qs.parse('[]=&a=b'), { 0: '', a: 'b' });
+        st.deepEqual(qs.parse('[]&a=b', { strictNullHandling: true }), { 0: null, a: 'b' });
+        st.deepEqual(qs.parse('[foo]=bar'), { foo: 'bar' });
+        st.end();
+    });
+
+    t.test('does not error when parsing a very long array', function (st) {
+        var str = 'a[]=a';
+        while (Buffer.byteLength(str) < 128 * 1024) {
+            str = str + '&' + str;
+        }
+
+        st.doesNotThrow(function () {
+            qs.parse(str);
+        });
+
+        st.end();
+    });
+
+    t.test('does not throw when a native prototype has an enumerable property', function (st) {
+        st.intercept(Object.prototype, 'crash', { value: '' });
+        st.intercept(Array.prototype, 'crash', { value: '' });
+
+        st.doesNotThrow(qs.parse.bind(null, 'a=b'));
+        st.deepEqual(qs.parse('a=b'), { a: 'b' });
+        st.doesNotThrow(qs.parse.bind(null, 'a[][b]=c'));
+        st.deepEqual(qs.parse('a[][b]=c'), { a: [{ b: 'c' }] });
+
+        st.end();
+    });
+
+    t.test('parses a string with an alternative string delimiter', function (st) {
+        st.deepEqual(qs.parse('a=b;c=d', { delimiter: ';' }), { a: 'b', c: 'd' });
+        st.end();
+    });
+
+    t.test('parses a string with an alternative RegExp delimiter', function (st) {
+        st.deepEqual(qs.parse('a=b; c=d', { delimiter: /[;,] */ }), { a: 'b', c: 'd' });
+        st.end();
+    });
+
+    t.test('does not use non-splittable objects as delimiters', function (st) {
+        st.deepEqual(qs.parse('a=b&c=d', { delimiter: true }), { a: 'b', c: 'd' });
+        st.end();
+    });
+
+    t.test('allows overriding parameter limit', function (st) {
+        st.deepEqual(qs.parse('a=b&c=d', { parameterLimit: 1 }), { a: 'b' });
+        st.end();
+    });
+
+    t.test('allows setting the parameter limit to Infinity', function (st) {
+        st.deepEqual(qs.parse('a=b&c=d', { parameterLimit: Infinity }), { a: 'b', c: 'd' });
+        st.end();
+    });
+
+    t.test('allows overriding array limit', function (st) {
+        st.deepEqual(qs.parse('a[0]=b', { arrayLimit: -1 }), { a: { 0: 'b' } });
+        st.deepEqual(qs.parse('a[0]=b', { arrayLimit: 0 }), { a: ['b'] });
+
+        st.deepEqual(qs.parse('a[-1]=b', { arrayLimit: -1 }), { a: { '-1': 'b' } });
+        st.deepEqual(qs.parse('a[-1]=b', { arrayLimit: 0 }), { a: { '-1': 'b' } });
+
+        st.deepEqual(qs.parse('a[0]=b&a[1]=c', { arrayLimit: -1 }), { a: { 0: 'b', 1: 'c' } });
+        st.deepEqual(qs.parse('a[0]=b&a[1]=c', { arrayLimit: 0 }), { a: { 0: 'b', 1: 'c' } });
+
+        st.end();
+    });
+
+    t.test('allows disabling array parsing', function (st) {
+        var indices = qs.parse('a[0]=b&a[1]=c', { parseArrays: false });
+        st.deepEqual(indices, { a: { 0: 'b', 1: 'c' } });
+        st.equal(Array.isArray(indices.a), false, 'parseArrays:false, indices case is not an array');
+
+        var emptyBrackets = qs.parse('a[]=b', { parseArrays: false });
+        st.deepEqual(emptyBrackets, { a: { 0: 'b' } });
+        st.equal(Array.isArray(emptyBrackets.a), false, 'parseArrays:false, empty brackets case is not an array');
+
+        st.end();
+    });
+
+    t.test('allows for query string prefix', function (st) {
+        st.deepEqual(qs.parse('?foo=bar', { ignoreQueryPrefix: true }), { foo: 'bar' });
+        st.deepEqual(qs.parse('foo=bar', { ignoreQueryPrefix: true }), { foo: 'bar' });
+        st.deepEqual(qs.parse('?foo=bar', { ignoreQueryPrefix: false }), { '?foo': 'bar' });
+
+        st.end();
+    });
+
+    t.test('parses an object', function (st) {
+        var input = {
+            'user[name]': { 'pop[bob]': 3 },
+            'user[email]': null
+        };
+
+        var expected = {
+            user: {
+                name: { 'pop[bob]': 3 },
+                email: null
+            }
+        };
+
+        var result = qs.parse(input);
+
+        st.deepEqual(result, expected);
+        st.end();
+    });
+
+    t.test('parses string with comma as array divider', function (st) {
+        st.deepEqual(qs.parse('foo=bar,tee', { comma: true }), { foo: ['bar', 'tee'] });
+        st.deepEqual(qs.parse('foo[bar]=coffee,tee', { comma: true }), { foo: { bar: ['coffee', 'tee'] } });
+        st.deepEqual(qs.parse('foo=', { comma: true }), { foo: '' });
+        st.deepEqual(qs.parse('foo', { comma: true }), { foo: '' });
+        st.deepEqual(qs.parse('foo', { comma: true, strictNullHandling: true }), { foo: null });
+
+        // test cases inversed from from stringify tests
+        st.deepEqual(qs.parse('a[0]=c'), { a: ['c'] });
+        st.deepEqual(qs.parse('a[]=c'), { a: ['c'] });
+        st.deepEqual(qs.parse('a[]=c', { comma: true }), { a: ['c'] });
+
+        st.deepEqual(qs.parse('a[0]=c&a[1]=d'), { a: ['c', 'd'] });
+        st.deepEqual(qs.parse('a[]=c&a[]=d'), { a: ['c', 'd'] });
+        st.deepEqual(qs.parse('a=c,d', { comma: true }), { a: ['c', 'd'] });
+
+        st.end();
+    });
+
+    t.test('parses values with comma as array divider', function (st) {
+        st.deepEqual(qs.parse({ foo: 'bar,tee' }, { comma: false }), { foo: 'bar,tee' });
+        st.deepEqual(qs.parse({ foo: 'bar,tee' }, { comma: true }), { foo: ['bar', 'tee'] });
+        st.end();
+    });
+
+    t.test('use number decoder, parses string that has one number with comma option enabled', function (st) {
+        var decoder = function (str, defaultDecoder, charset, type) {
+            if (!isNaN(Number(str))) {
+                return parseFloat(str);
+            }
+            return defaultDecoder(str, defaultDecoder, charset, type);
+        };
+
+        st.deepEqual(qs.parse('foo=1', { comma: true, decoder: decoder }), { foo: 1 });
+        st.deepEqual(qs.parse('foo=0', { comma: true, decoder: decoder }), { foo: 0 });
+
+        st.end();
+    });
+
+    t.test('parses brackets holds array of arrays when having two parts of strings with comma as array divider', function (st) {
+        st.deepEqual(qs.parse('foo[]=1,2,3&foo[]=4,5,6', { comma: true }), { foo: [['1', '2', '3'], ['4', '5', '6']] });
+        st.deepEqual(qs.parse('foo[]=1,2,3&foo[]=', { comma: true }), { foo: [['1', '2', '3'], ''] });
+        st.deepEqual(qs.parse('foo[]=1,2,3&foo[]=,', { comma: true }), { foo: [['1', '2', '3'], ['', '']] });
+        st.deepEqual(qs.parse('foo[]=1,2,3&foo[]=a', { comma: true }), { foo: [['1', '2', '3'], 'a'] });
+
+        st.end();
+    });
+
+    t.test('parses url-encoded brackets holds array of arrays when having two parts of strings with comma as array divider', function (st) {
+        st.deepEqual(qs.parse('foo%5B%5D=1,2,3&foo%5B%5D=4,5,6', { comma: true }), { foo: [['1', '2', '3'], ['4', '5', '6']] });
+        st.deepEqual(qs.parse('foo%5B%5D=1,2,3&foo%5B%5D=', { comma: true }), { foo: [['1', '2', '3'], ''] });
+        st.deepEqual(qs.parse('foo%5B%5D=1,2,3&foo%5B%5D=,', { comma: true }), { foo: [['1', '2', '3'], ['', '']] });
+        st.deepEqual(qs.parse('foo%5B%5D=1,2,3&foo%5B%5D=a', { comma: true }), { foo: [['1', '2', '3'], 'a'] });
+
+        st.end();
+    });
+
+    t.test('parses comma delimited array while having percent-encoded comma treated as normal text', function (st) {
+        st.deepEqual(qs.parse('foo=a%2Cb', { comma: true }), { foo: 'a,b' });
+        st.deepEqual(qs.parse('foo=a%2C%20b,d', { comma: true }), { foo: ['a, b', 'd'] });
+        st.deepEqual(qs.parse('foo=a%2C%20b,c%2C%20d', { comma: true }), { foo: ['a, b', 'c, d'] });
+
+        st.end();
+    });
+
+    t.test('parses an object in dot notation', function (st) {
+        var input = {
+            'user.name': { 'pop[bob]': 3 },
+            'user.email.': null
+        };
+
+        var expected = {
+            user: {
+                name: { 'pop[bob]': 3 },
+                email: null
+            }
+        };
+
+        var result = qs.parse(input, { allowDots: true });
+
+        st.deepEqual(result, expected);
+        st.end();
+    });
+
+    t.test('parses an object and not child values', function (st) {
+        var input = {
+            'user[name]': { 'pop[bob]': { test: 3 } },
+            'user[email]': null
+        };
+
+        var expected = {
+            user: {
+                name: { 'pop[bob]': { test: 3 } },
+                email: null
+            }
+        };
+
+        var result = qs.parse(input);
+
+        st.deepEqual(result, expected);
+        st.end();
+    });
+
+    t.test('does not blow up when Buffer global is missing', function (st) {
+        var restore = mockProperty(global, 'Buffer', { 'delete': true });
+
+        var result = qs.parse('a=b&c=d');
+
+        restore();
+
+        st.deepEqual(result, { a: 'b', c: 'd' });
+        st.end();
+    });
+
+    t.test('does not crash when parsing circular references', function (st) {
+        var a = {};
+        a.b = a;
+
+        var parsed;
+
+        st.doesNotThrow(function () {
+            parsed = qs.parse({ 'foo[bar]': 'baz', 'foo[baz]': a });
+        });
+
+        st.equal('foo' in parsed, true, 'parsed has "foo" property');
+        st.equal('bar' in parsed.foo, true);
+        st.equal('baz' in parsed.foo, true);
+        st.equal(parsed.foo.bar, 'baz');
+        st.deepEqual(parsed.foo.baz, a);
+        st.end();
+    });
+
+    t.test('does not crash when parsing deep objects', function (st) {
+        var parsed;
+        var str = 'foo';
+
+        for (var i = 0; i < 5000; i++) {
+            str += '[p]';
+        }
+
+        str += '=bar';
+
+        st.doesNotThrow(function () {
+            parsed = qs.parse(str, { depth: 5000 });
+        });
+
+        st.equal('foo' in parsed, true, 'parsed has "foo" property');
+
+        var depth = 0;
+        var ref = parsed.foo;
+        while ((ref = ref.p)) {
+            depth += 1;
+        }
+
+        st.equal(depth, 5000, 'parsed is 5000 properties deep');
+
+        st.end();
+    });
+
+    t.test('parses null objects correctly', { skip: !hasProto }, function (st) {
+        var a = { __proto__: null, b: 'c' };
+
+        st.deepEqual(qs.parse(a), { b: 'c' });
+        var result = qs.parse({ a: a });
+        st.equal('a' in result, true, 'result has "a" property');
+        st.deepEqual(result.a, a);
+        st.end();
+    });
+
+    t.test('parses dates correctly', function (st) {
+        var now = new Date();
+        st.deepEqual(qs.parse({ a: now }), { a: now });
+        st.end();
+    });
+
+    t.test('parses regular expressions correctly', function (st) {
+        var re = /^test$/;
+        st.deepEqual(qs.parse({ a: re }), { a: re });
+        st.end();
+    });
+
+    t.test('does not allow overwriting prototype properties', function (st) {
+        st.deepEqual(qs.parse('a[hasOwnProperty]=b', { allowPrototypes: false }), {});
+        st.deepEqual(qs.parse('hasOwnProperty=b', { allowPrototypes: false }), {});
+
+        st.deepEqual(
+            qs.parse('toString', { allowPrototypes: false }),
+            {},
+            'bare "toString" results in {}'
+        );
+
+        st.end();
+    });
+
+    t.test('can allow overwriting prototype properties', function (st) {
+        st.deepEqual(qs.parse('a[hasOwnProperty]=b', { allowPrototypes: true }), { a: { hasOwnProperty: 'b' } });
+        st.deepEqual(qs.parse('hasOwnProperty=b', { allowPrototypes: true }), { hasOwnProperty: 'b' });
+
+        st.deepEqual(
+            qs.parse('toString', { allowPrototypes: true }),
+            { toString: '' },
+            'bare "toString" results in { toString: "" }'
+        );
+
+        st.end();
+    });
+
+    t.test('does not crash when the global Object prototype is frozen', { skip: !hasPropertyDescriptors || !hasOverrideMistake }, function (st) {
+        // We can't actually freeze the global Object prototype as that will interfere with other tests, and once an object is frozen, it
+        // can't be unfrozen. Instead, we add a new non-writable property to simulate this.
+        st.teardown(mockProperty(Object.prototype, 'frozenProp', { value: 'foo', nonWritable: true, nonEnumerable: true }));
+
+        st['throws'](
+            function () {
+                var obj = {};
+                obj.frozenProp = 'bar';
+            },
+            // node < 6 has a different error message
+            /^TypeError: Cannot assign to read only property 'frozenProp' of (?:object '#<Object>'|#<Object>)/,
+            'regular assignment of an inherited non-writable property throws'
+        );
+
+        var parsed;
+        st.doesNotThrow(
+            function () {
+                parsed = qs.parse('frozenProp', { allowPrototypes: false });
+            },
+            'parsing a nonwritable Object.prototype property does not throw'
+        );
+
+        st.deepEqual(parsed, {}, 'bare "frozenProp" results in {}');
+
+        st.end();
+    });
+
+    t.test('params starting with a closing bracket', function (st) {
+        st.deepEqual(qs.parse(']=toString'), { ']': 'toString' });
+        st.deepEqual(qs.parse(']]=toString'), { ']]': 'toString' });
+        st.deepEqual(qs.parse(']hello]=toString'), { ']hello]': 'toString' });
+        st.end();
+    });
+
+    t.test('params starting with a starting bracket', function (st) {
+        st.deepEqual(qs.parse('[=toString'), { '[': 'toString' });
+        st.deepEqual(qs.parse('[[=toString'), { '[[': 'toString' });
+        st.deepEqual(qs.parse('[hello[=toString'), { '[hello[': 'toString' });
+        st.end();
+    });
+
+    t.test('add keys to objects', function (st) {
+        st.deepEqual(
+            qs.parse('a[b]=c&a=d'),
+            { a: { b: 'c', d: true } },
+            'can add keys to objects'
+        );
+
+        st.deepEqual(
+            qs.parse('a[b]=c&a=toString'),
+            { a: { b: 'c' } },
+            'can not overwrite prototype'
+        );
+
+        st.deepEqual(
+            qs.parse('a[b]=c&a=toString', { allowPrototypes: true }),
+            { a: { b: 'c', toString: true } },
+            'can overwrite prototype with allowPrototypes true'
+        );
+
+        st.deepEqual(
+            qs.parse('a[b]=c&a=toString', { plainObjects: true }),
+            { __proto__: null, a: { __proto__: null, b: 'c', toString: true } },
+            'can overwrite prototype with plainObjects true'
+        );
+
+        st.end();
+    });
+
+    t.test('dunder proto is ignored', function (st) {
+        var payload = 'categories[__proto__]=login&categories[__proto__]&categories[length]=42';
+        var result = qs.parse(payload, { allowPrototypes: true });
+
+        st.deepEqual(
+            result,
+            {
+                categories: {
+                    length: '42'
+                }
+            },
+            'silent [[Prototype]] payload'
+        );
+
+        var plainResult = qs.parse(payload, { allowPrototypes: true, plainObjects: true });
+
+        st.deepEqual(
+            plainResult,
+            {
+                __proto__: null,
+                categories: {
+                    __proto__: null,
+                    length: '42'
+                }
+            },
+            'silent [[Prototype]] payload: plain objects'
+        );
+
+        var query = qs.parse('categories[__proto__]=cats&categories[__proto__]=dogs&categories[some][json]=toInject', { allowPrototypes: true });
+
+        st.notOk(Array.isArray(query.categories), 'is not an array');
+        st.notOk(query.categories instanceof Array, 'is not instanceof an array');
+        st.deepEqual(query.categories, { some: { json: 'toInject' } });
+        st.equal(JSON.stringify(query.categories), '{"some":{"json":"toInject"}}', 'stringifies as a non-array');
+
+        st.deepEqual(
+            qs.parse('foo[__proto__][hidden]=value&foo[bar]=stuffs', { allowPrototypes: true }),
+            {
+                foo: {
+                    bar: 'stuffs'
+                }
+            },
+            'hidden values'
+        );
+
+        st.deepEqual(
+            qs.parse('foo[__proto__][hidden]=value&foo[bar]=stuffs', { allowPrototypes: true, plainObjects: true }),
+            {
+                __proto__: null,
+                foo: {
+                    __proto__: null,
+                    bar: 'stuffs'
+                }
+            },
+            'hidden values: plain objects'
+        );
+
+        st.end();
+    });
+
+    t.test('can return null objects', { skip: !hasProto }, function (st) {
+        var expected = {
+            __proto__: null,
+            a: {
+                __proto__: null,
+                b: 'c',
+                hasOwnProperty: 'd'
+            }
+        };
+        st.deepEqual(qs.parse('a[b]=c&a[hasOwnProperty]=d', { plainObjects: true }), expected);
+        st.deepEqual(qs.parse(null, { plainObjects: true }), { __proto__: null });
+        var expectedArray = {
+            __proto__: null,
+            a: {
+                __proto__: null,
+                0: 'b',
+                c: 'd'
+            }
+        };
+        st.deepEqual(qs.parse('a[]=b&a[c]=d', { plainObjects: true }), expectedArray);
+        st.end();
+    });
+
+    t.test('can parse with custom encoding', function (st) {
+        st.deepEqual(qs.parse('%8c%a7=%91%e5%8d%e3%95%7b', {
+            decoder: function (str) {
+                var reg = /%([0-9A-F]{2})/ig;
+                var result = [];
+                var parts = reg.exec(str);
+                while (parts) {
+                    result.push(parseInt(parts[1], 16));
+                    parts = reg.exec(str);
+                }
+                return String(iconv.decode(SaferBuffer.from(result), 'shift_jis'));
+            }
+        }), { 県: '大阪府' });
+        st.end();
+    });
+
+    t.test('receives the default decoder as a second argument', function (st) {
+        st.plan(1);
+        qs.parse('a', {
+            decoder: function (str, defaultDecoder) {
+                st.equal(defaultDecoder, utils.decode);
+            }
+        });
+        st.end();
+    });
+
+    t.test('throws error with wrong decoder', function (st) {
+        st['throws'](function () {
+            qs.parse({}, { decoder: 'string' });
+        }, new TypeError('Decoder has to be a function.'));
+        st.end();
+    });
+
+    t.test('does not mutate the options argument', function (st) {
+        var options = {};
+        qs.parse('a[b]=true', options);
+        st.deepEqual(options, {});
+        st.end();
+    });
+
+    t.test('throws if an invalid charset is specified', function (st) {
+        st['throws'](function () {
+            qs.parse('a=b', { charset: 'foobar' });
+        }, new TypeError('The charset option must be either utf-8, iso-8859-1, or undefined'));
+        st.end();
+    });
+
+    t.test('parses an iso-8859-1 string if asked to', function (st) {
+        st.deepEqual(qs.parse('%A2=%BD', { charset: 'iso-8859-1' }), { '¢': '½' });
+        st.end();
+    });
+
+    var urlEncodedCheckmarkInUtf8 = '%E2%9C%93';
+    var urlEncodedOSlashInUtf8 = '%C3%B8';
+    var urlEncodedNumCheckmark = '%26%2310003%3B';
+    var urlEncodedNumSmiley = '%26%239786%3B';
+
+    t.test('prefers an utf-8 charset specified by the utf8 sentinel to a default charset of iso-8859-1', function (st) {
+        st.deepEqual(qs.parse('utf8=' + urlEncodedCheckmarkInUtf8 + '&' + urlEncodedOSlashInUtf8 + '=' + urlEncodedOSlashInUtf8, { charsetSentinel: true, charset: 'iso-8859-1' }), { ø: 'ø' });
+        st.end();
+    });
+
+    t.test('prefers an iso-8859-1 charset specified by the utf8 sentinel to a default charset of utf-8', function (st) {
+        st.deepEqual(qs.parse('utf8=' + urlEncodedNumCheckmark + '&' + urlEncodedOSlashInUtf8 + '=' + urlEncodedOSlashInUtf8, { charsetSentinel: true, charset: 'utf-8' }), { 'ø': 'ø' });
+        st.end();
+    });
+
+    t.test('does not require the utf8 sentinel to be defined before the parameters whose decoding it affects', function (st) {
+        st.deepEqual(qs.parse('a=' + urlEncodedOSlashInUtf8 + '&utf8=' + urlEncodedNumCheckmark, { charsetSentinel: true, charset: 'utf-8' }), { a: 'ø' });
+        st.end();
+    });
+
+    t.test('ignores an utf8 sentinel with an unknown value', function (st) {
+        st.deepEqual(qs.parse('utf8=foo&' + urlEncodedOSlashInUtf8 + '=' + urlEncodedOSlashInUtf8, { charsetSentinel: true, charset: 'utf-8' }), { ø: 'ø' });
+        st.end();
+    });
+
+    t.test('uses the utf8 sentinel to switch to utf-8 when no default charset is given', function (st) {
+        st.deepEqual(qs.parse('utf8=' + urlEncodedCheckmarkInUtf8 + '&' + urlEncodedOSlashInUtf8 + '=' + urlEncodedOSlashInUtf8, { charsetSentinel: true }), { ø: 'ø' });
+        st.end();
+    });
+
+    t.test('uses the utf8 sentinel to switch to iso-8859-1 when no default charset is given', function (st) {
+        st.deepEqual(qs.parse('utf8=' + urlEncodedNumCheckmark + '&' + urlEncodedOSlashInUtf8 + '=' + urlEncodedOSlashInUtf8, { charsetSentinel: true }), { 'ø': 'ø' });
+        st.end();
+    });
+
+    t.test('interprets numeric entities in iso-8859-1 when `interpretNumericEntities`', function (st) {
+        st.deepEqual(qs.parse('foo=' + urlEncodedNumSmiley, { charset: 'iso-8859-1', interpretNumericEntities: true }), { foo: '☺' });
+        st.end();
+    });
+
+    t.test('handles a custom decoder returning `null`, in the `iso-8859-1` charset, when `interpretNumericEntities`', function (st) {
+        st.deepEqual(qs.parse('foo=&bar=' + urlEncodedNumSmiley, {
+            charset: 'iso-8859-1',
+            decoder: function (str, defaultDecoder, charset) {
+                return str ? defaultDecoder(str, defaultDecoder, charset) : null;
+            },
+            interpretNumericEntities: true
+        }), { foo: null, bar: '☺' });
+        st.end();
+    });
+
+    t.test('does not interpret numeric entities in iso-8859-1 when `interpretNumericEntities` is absent', function (st) {
+        st.deepEqual(qs.parse('foo=' + urlEncodedNumSmiley, { charset: 'iso-8859-1' }), { foo: '&#9786;' });
+        st.end();
+    });
+
+    t.test('does not interpret numeric entities when the charset is utf-8, even when `interpretNumericEntities`', function (st) {
+        st.deepEqual(qs.parse('foo=' + urlEncodedNumSmiley, { charset: 'utf-8', interpretNumericEntities: true }), { foo: '&#9786;' });
+        st.end();
+    });
+
+    t.test('interpretNumericEntities with comma:true and iso charset does not crash', function (st) {
+        st.deepEqual(
+            qs.parse('b&a[]=1,' + urlEncodedNumSmiley, { comma: true, charset: 'iso-8859-1', interpretNumericEntities: true }),
+            { b: '', a: ['1,☺'] }
+        );
+
+        st.end();
+    });
+
+    t.test('does not interpret %uXXXX syntax in iso-8859-1 mode', function (st) {
+        st.deepEqual(qs.parse('%u263A=%u263A', { charset: 'iso-8859-1' }), { '%u263A': '%u263A' });
+        st.end();
+    });
+
+    t.test('allows for decoding keys and values differently', function (st) {
+        var decoder = function (str, defaultDecoder, charset, type) {
+            if (type === 'key') {
+                return defaultDecoder(str, defaultDecoder, charset, type).toLowerCase();
+            }
+            if (type === 'value') {
+                return defaultDecoder(str, defaultDecoder, charset, type).toUpperCase();
+            }
+            throw 'this should never happen! type: ' + type;
+        };
+
+        st.deepEqual(qs.parse('KeY=vAlUe', { decoder: decoder }), { key: 'VALUE' });
+        st.end();
+    });
+
+    t.test('parameter limit tests', function (st) {
+        st.test('does not throw error when within parameter limit', function (sst) {
+            var result = qs.parse('a=1&b=2&c=3', { parameterLimit: 5, throwOnLimitExceeded: true });
+            sst.deepEqual(result, { a: '1', b: '2', c: '3' }, 'parses without errors');
+            sst.end();
+        });
+
+        st.test('throws error when throwOnLimitExceeded is present but not boolean', function (sst) {
+            sst['throws'](
+                function () {
+                    qs.parse('a=1&b=2&c=3&d=4&e=5&f=6', { parameterLimit: 3, throwOnLimitExceeded: 'true' });
+                },
+                new TypeError('`throwOnLimitExceeded` option must be a boolean'),
+                'throws error when throwOnLimitExceeded is present and not boolean'
+            );
+            sst.end();
+        });
+
+        st.test('throws error when parameter limit exceeded', function (sst) {
+            sst['throws'](
+                function () {
+                    qs.parse('a=1&b=2&c=3&d=4&e=5&f=6', { parameterLimit: 3, throwOnLimitExceeded: true });
+                },
+                new RangeError('Parameter limit exceeded. Only 3 parameters allowed.'),
+                'throws error when parameter limit is exceeded'
+            );
+            sst.end();
+        });
+
+        st.test('silently truncates when throwOnLimitExceeded is not given', function (sst) {
+            var result = qs.parse('a=1&b=2&c=3&d=4&e=5', { parameterLimit: 3 });
+            sst.deepEqual(result, { a: '1', b: '2', c: '3' }, 'parses and truncates silently');
+            sst.end();
+        });
+
+        st.test('silently truncates when parameter limit exceeded without error', function (sst) {
+            var result = qs.parse('a=1&b=2&c=3&d=4&e=5', { parameterLimit: 3, throwOnLimitExceeded: false });
+            sst.deepEqual(result, { a: '1', b: '2', c: '3' }, 'parses and truncates silently');
+            sst.end();
+        });
+
+        st.test('allows unlimited parameters when parameterLimit set to Infinity', function (sst) {
+            var result = qs.parse('a=1&b=2&c=3&d=4&e=5&f=6', { parameterLimit: Infinity });
+            sst.deepEqual(result, { a: '1', b: '2', c: '3', d: '4', e: '5', f: '6' }, 'parses all parameters without truncation');
+            sst.end();
+        });
+
+        st.end();
+    });
+
+    t.test('array limit tests', function (st) {
+        st.test('does not throw error when array is within limit', function (sst) {
+            var result = qs.parse('a[]=1&a[]=2&a[]=3', { arrayLimit: 5, throwOnLimitExceeded: true });
+            sst.deepEqual(result, { a: ['1', '2', '3'] }, 'parses array without errors');
+            sst.end();
+        });
+
+        st.test('throws error when throwOnLimitExceeded is present but not boolean for array limit', function (sst) {
+            sst['throws'](
+                function () {
+                    qs.parse('a[]=1&a[]=2&a[]=3&a[]=4', { arrayLimit: 3, throwOnLimitExceeded: 'true' });
+                },
+                new TypeError('`throwOnLimitExceeded` option must be a boolean'),
+                'throws error when throwOnLimitExceeded is present and not boolean for array limit'
+            );
+            sst.end();
+        });
+
+        st.test('throws error when array limit exceeded', function (sst) {
+            sst['throws'](
+                function () {
+                    qs.parse('a[]=1&a[]=2&a[]=3&a[]=4', { arrayLimit: 3, throwOnLimitExceeded: true });
+                },
+                new RangeError('Array limit exceeded. Only 3 elements allowed in an array.'),
+                'throws error when array limit is exceeded'
+            );
+            sst.end();
+        });
+
+        st.test('converts array to object if length is greater than limit', function (sst) {
+            var result = qs.parse('a[1]=1&a[2]=2&a[3]=3&a[4]=4&a[5]=5&a[6]=6', { arrayLimit: 5 });
+
+            sst.deepEqual(result, { a: { 1: '1', 2: '2', 3: '3', 4: '4', 5: '5', 6: '6' } }, 'parses into object if array length is greater than limit');
+            sst.end();
+        });
+
+        st.end();
+    });
+
+    t.end();
+});
+
+test('parses empty keys', function (t) {
+    emptyTestCases.forEach(function (testCase) {
+        t.test('skips empty string key with ' + testCase.input, function (st) {
+            st.deepEqual(qs.parse(testCase.input), testCase.noEmptyKeys);
+
+            st.end();
+        });
+    });
+});
+
+test('`duplicates` option', function (t) {
+    v.nonStrings.concat('not a valid option').forEach(function (invalidOption) {
+        if (typeof invalidOption !== 'undefined') {
+            t['throws'](
+                function () { qs.parse('', { duplicates: invalidOption }); },
+                TypeError,
+                'throws on invalid option: ' + inspect(invalidOption)
+            );
+        }
+    });
+
+    t.deepEqual(
+        qs.parse('foo=bar&foo=baz'),
+        { foo: ['bar', 'baz'] },
+        'duplicates: default, combine'
+    );
+
+    t.deepEqual(
+        qs.parse('foo=bar&foo=baz', { duplicates: 'combine' }),
+        { foo: ['bar', 'baz'] },
+        'duplicates: combine'
+    );
+
+    t.deepEqual(
+        qs.parse('foo=bar&foo=baz', { duplicates: 'first' }),
+        { foo: 'bar' },
+        'duplicates: first'
+    );
+
+    t.deepEqual(
+        qs.parse('foo=bar&foo=baz', { duplicates: 'last' }),
+        { foo: 'baz' },
+        'duplicates: last'
+    );
+
+    t.end();
+});
+
+test('qs strictDepth option - throw cases', function (t) {
+    t.test('throws an exception when depth exceeds the limit with strictDepth: true', function (st) {
+        st['throws'](
+            function () {
+                qs.parse('a[b][c][d][e][f][g][h][i]=j', { depth: 1, strictDepth: true });
+            },
+            RangeError,
+            'throws RangeError'
+        );
+        st.end();
+    });
+
+    t.test('throws an exception for multiple nested arrays with strictDepth: true', function (st) {
+        st['throws'](
+            function () {
+                qs.parse('a[0][1][2][3][4]=b', { depth: 3, strictDepth: true });
+            },
+            RangeError,
+            'throws RangeError'
+        );
+        st.end();
+    });
+
+    t.test('throws an exception for nested objects and arrays with strictDepth: true', function (st) {
+        st['throws'](
+            function () {
+                qs.parse('a[b][c][0][d][e]=f', { depth: 3, strictDepth: true });
+            },
+            RangeError,
+            'throws RangeError'
+        );
+        st.end();
+    });
+
+    t.test('throws an exception for different types of values with strictDepth: true', function (st) {
+        st['throws'](
+            function () {
+                qs.parse('a[b][c][d][e]=true&a[b][c][d][f]=42', { depth: 3, strictDepth: true });
+            },
+            RangeError,
+            'throws RangeError'
+        );
+        st.end();
+    });
+
+});
+
+test('qs strictDepth option - non-throw cases', function (t) {
+    t.test('when depth is 0 and strictDepth true, do not throw', function (st) {
+        st.doesNotThrow(
+            function () {
+                qs.parse('a[b][c][d][e]=true&a[b][c][d][f]=42', { depth: 0, strictDepth: true });
+            },
+            RangeError,
+            'does not throw RangeError'
+        );
+        st.end();
+    });
+
+    t.test('parses successfully when depth is within the limit with strictDepth: true', function (st) {
+        st.doesNotThrow(
+            function () {
+                var result = qs.parse('a[b]=c', { depth: 1, strictDepth: true });
+                st.deepEqual(result, { a: { b: 'c' } }, 'parses correctly');
+            }
+        );
+        st.end();
+    });
+
+    t.test('does not throw an exception when depth exceeds the limit with strictDepth: false', function (st) {
+        st.doesNotThrow(
+            function () {
+                var result = qs.parse('a[b][c][d][e][f][g][h][i]=j', { depth: 1 });
+                st.deepEqual(result, { a: { b: { '[c][d][e][f][g][h][i]': 'j' } } }, 'parses with depth limit');
+            }
+        );
+        st.end();
+    });
+
+    t.test('parses successfully when depth is within the limit with strictDepth: false', function (st) {
+        st.doesNotThrow(
+            function () {
+                var result = qs.parse('a[b]=c', { depth: 1 });
+                st.deepEqual(result, { a: { b: 'c' } }, 'parses correctly');
+            }
+        );
+        st.end();
+    });
+
+    t.test('does not throw when depth is exactly at the limit with strictDepth: true', function (st) {
+        st.doesNotThrow(
+            function () {
+                var result = qs.parse('a[b][c]=d', { depth: 2, strictDepth: true });
+                st.deepEqual(result, { a: { b: { c: 'd' } } }, 'parses correctly');
+            }
+        );
+        st.end();
+    });
+});
diff --git a/backend/node_modules/qs/test/stringify.js b/backend/node_modules/qs/test/stringify.js
new file mode 100644
index 0000000..7253144
--- /dev/null
+++ b/backend/node_modules/qs/test/stringify.js
@@ -0,0 +1,1306 @@
+'use strict';
+
+var test = require('tape');
+var qs = require('../');
+var utils = require('../lib/utils');
+var iconv = require('iconv-lite');
+var SaferBuffer = require('safer-buffer').Buffer;
+var hasSymbols = require('has-symbols');
+var mockProperty = require('mock-property');
+var emptyTestCases = require('./empty-keys-cases').emptyTestCases;
+var hasProto = require('has-proto')();
+var hasBigInt = require('has-bigints')();
+
+test('stringify()', function (t) {
+    t.test('stringifies a querystring object', function (st) {
+        st.equal(qs.stringify({ a: 'b' }), 'a=b');
+        st.equal(qs.stringify({ a: 1 }), 'a=1');
+        st.equal(qs.stringify({ a: 1, b: 2 }), 'a=1&b=2');
+        st.equal(qs.stringify({ a: 'A_Z' }), 'a=A_Z');
+        st.equal(qs.stringify({ a: '€' }), 'a=%E2%82%AC');
+        st.equal(qs.stringify({ a: '' }), 'a=%EE%80%80');
+        st.equal(qs.stringify({ a: 'א' }), 'a=%D7%90');
+        st.equal(qs.stringify({ a: '𐐷' }), 'a=%F0%90%90%B7');
+        st.end();
+    });
+
+    t.test('stringifies falsy values', function (st) {
+        st.equal(qs.stringify(undefined), '');
+        st.equal(qs.stringify(null), '');
+        st.equal(qs.stringify(null, { strictNullHandling: true }), '');
+        st.equal(qs.stringify(false), '');
+        st.equal(qs.stringify(0), '');
+        st.end();
+    });
+
+    t.test('stringifies symbols', { skip: !hasSymbols() }, function (st) {
+        st.equal(qs.stringify(Symbol.iterator), '');
+        st.equal(qs.stringify([Symbol.iterator]), '0=Symbol%28Symbol.iterator%29');
+        st.equal(qs.stringify({ a: Symbol.iterator }), 'a=Symbol%28Symbol.iterator%29');
+        st.equal(
+            qs.stringify({ a: [Symbol.iterator] }, { encodeValuesOnly: true, arrayFormat: 'brackets' }),
+            'a[]=Symbol%28Symbol.iterator%29'
+        );
+        st.end();
+    });
+
+    t.test('stringifies bigints', { skip: !hasBigInt }, function (st) {
+        var three = BigInt(3);
+        var encodeWithN = function (value, defaultEncoder, charset) {
+            var result = defaultEncoder(value, defaultEncoder, charset);
+            return typeof value === 'bigint' ? result + 'n' : result;
+        };
+        st.equal(qs.stringify(three), '');
+        st.equal(qs.stringify([three]), '0=3');
+        st.equal(qs.stringify([three], { encoder: encodeWithN }), '0=3n');
+        st.equal(qs.stringify({ a: three }), 'a=3');
+        st.equal(qs.stringify({ a: three }, { encoder: encodeWithN }), 'a=3n');
+        st.equal(
+            qs.stringify({ a: [three] }, { encodeValuesOnly: true, arrayFormat: 'brackets' }),
+            'a[]=3'
+        );
+        st.equal(
+            qs.stringify({ a: [three] }, { encodeValuesOnly: true, encoder: encodeWithN, arrayFormat: 'brackets' }),
+            'a[]=3n'
+        );
+        st.end();
+    });
+
+    t.test('encodes dot in key of object when encodeDotInKeys and allowDots is provided', function (st) {
+        st.equal(
+            qs.stringify(
+                { 'name.obj': { first: 'John', last: 'Doe' } },
+                { allowDots: false, encodeDotInKeys: false }
+            ),
+            'name.obj%5Bfirst%5D=John&name.obj%5Blast%5D=Doe',
+            'with allowDots false and encodeDotInKeys false'
+        );
+        st.equal(
+            qs.stringify(
+                { 'name.obj': { first: 'John', last: 'Doe' } },
+                { allowDots: true, encodeDotInKeys: false }
+            ),
+            'name.obj.first=John&name.obj.last=Doe',
+            'with allowDots true and encodeDotInKeys false'
+        );
+        st.equal(
+            qs.stringify(
+                { 'name.obj': { first: 'John', last: 'Doe' } },
+                { allowDots: false, encodeDotInKeys: true }
+            ),
+            'name%252Eobj%5Bfirst%5D=John&name%252Eobj%5Blast%5D=Doe',
+            'with allowDots false and encodeDotInKeys true'
+        );
+        st.equal(
+            qs.stringify(
+                { 'name.obj': { first: 'John', last: 'Doe' } },
+                { allowDots: true, encodeDotInKeys: true }
+            ),
+            'name%252Eobj.first=John&name%252Eobj.last=Doe',
+            'with allowDots true and encodeDotInKeys true'
+        );
+
+        st.equal(
+            qs.stringify(
+                { 'name.obj.subobject': { 'first.godly.name': 'John', last: 'Doe' } },
+                { allowDots: false, encodeDotInKeys: false }
+            ),
+            'name.obj.subobject%5Bfirst.godly.name%5D=John&name.obj.subobject%5Blast%5D=Doe',
+            'with allowDots false and encodeDotInKeys false'
+        );
+        st.equal(
+            qs.stringify(
+                { 'name.obj.subobject': { 'first.godly.name': 'John', last: 'Doe' } },
+                { allowDots: true, encodeDotInKeys: false }
+            ),
+            'name.obj.subobject.first.godly.name=John&name.obj.subobject.last=Doe',
+            'with allowDots false and encodeDotInKeys false'
+        );
+        st.equal(
+            qs.stringify(
+                { 'name.obj.subobject': { 'first.godly.name': 'John', last: 'Doe' } },
+                { allowDots: false, encodeDotInKeys: true }
+            ),
+            'name%252Eobj%252Esubobject%5Bfirst.godly.name%5D=John&name%252Eobj%252Esubobject%5Blast%5D=Doe',
+            'with allowDots false and encodeDotInKeys true'
+        );
+        st.equal(
+            qs.stringify(
+                { 'name.obj.subobject': { 'first.godly.name': 'John', last: 'Doe' } },
+                { allowDots: true, encodeDotInKeys: true }
+            ),
+            'name%252Eobj%252Esubobject.first%252Egodly%252Ename=John&name%252Eobj%252Esubobject.last=Doe',
+            'with allowDots true and encodeDotInKeys true'
+        );
+
+        st.end();
+    });
+
+    t.test('should encode dot in key of object, and automatically set allowDots to `true` when encodeDotInKeys is true and allowDots in undefined', function (st) {
+        st.equal(
+            qs.stringify(
+                { 'name.obj.subobject': { 'first.godly.name': 'John', last: 'Doe' } },
+                { encodeDotInKeys: true }
+            ),
+            'name%252Eobj%252Esubobject.first%252Egodly%252Ename=John&name%252Eobj%252Esubobject.last=Doe',
+            'with allowDots undefined and encodeDotInKeys true'
+        );
+        st.end();
+    });
+
+    t.test('should encode dot in key of object when encodeDotInKeys and allowDots is provided, and nothing else when encodeValuesOnly is provided', function (st) {
+        st.equal(
+            qs.stringify({ 'name.obj': { first: 'John', last: 'Doe' } }, {
+                encodeDotInKeys: true, allowDots: true, encodeValuesOnly: true
+            }),
+            'name%2Eobj.first=John&name%2Eobj.last=Doe'
+        );
+
+        st.equal(
+            qs.stringify({ 'name.obj.subobject': { 'first.godly.name': 'John', last: 'Doe' } }, { allowDots: true, encodeDotInKeys: true, encodeValuesOnly: true }),
+            'name%2Eobj%2Esubobject.first%2Egodly%2Ename=John&name%2Eobj%2Esubobject.last=Doe'
+        );
+
+        st.end();
+    });
+
+    t.test('throws when `commaRoundTrip` is not a boolean', function (st) {
+        st['throws'](
+            function () { qs.stringify({}, { commaRoundTrip: 'not a boolean' }); },
+            TypeError,
+            'throws when `commaRoundTrip` is not a boolean'
+        );
+
+        st.end();
+    });
+
+    t.test('throws when `encodeDotInKeys` is not a boolean', function (st) {
+        st['throws'](
+            function () { qs.stringify({ a: [], b: 'zz' }, { encodeDotInKeys: 'foobar' }); },
+            TypeError
+        );
+
+        st['throws'](
+            function () { qs.stringify({ a: [], b: 'zz' }, { encodeDotInKeys: 0 }); },
+            TypeError
+        );
+
+        st['throws'](
+            function () { qs.stringify({ a: [], b: 'zz' }, { encodeDotInKeys: NaN }); },
+            TypeError
+        );
+
+        st['throws'](
+            function () { qs.stringify({ a: [], b: 'zz' }, { encodeDotInKeys: null }); },
+            TypeError
+        );
+
+        st.end();
+    });
+
+    t.test('adds query prefix', function (st) {
+        st.equal(qs.stringify({ a: 'b' }, { addQueryPrefix: true }), '?a=b');
+        st.end();
+    });
+
+    t.test('with query prefix, outputs blank string given an empty object', function (st) {
+        st.equal(qs.stringify({}, { addQueryPrefix: true }), '');
+        st.end();
+    });
+
+    t.test('stringifies nested falsy values', function (st) {
+        st.equal(qs.stringify({ a: { b: { c: null } } }), 'a%5Bb%5D%5Bc%5D=');
+        st.equal(qs.stringify({ a: { b: { c: null } } }, { strictNullHandling: true }), 'a%5Bb%5D%5Bc%5D');
+        st.equal(qs.stringify({ a: { b: { c: false } } }), 'a%5Bb%5D%5Bc%5D=false');
+        st.end();
+    });
+
+    t.test('stringifies a nested object', function (st) {
+        st.equal(qs.stringify({ a: { b: 'c' } }), 'a%5Bb%5D=c');
+        st.equal(qs.stringify({ a: { b: { c: { d: 'e' } } } }), 'a%5Bb%5D%5Bc%5D%5Bd%5D=e');
+        st.end();
+    });
+
+    t.test('`allowDots` option: stringifies a nested object with dots notation', function (st) {
+        st.equal(qs.stringify({ a: { b: 'c' } }, { allowDots: true }), 'a.b=c');
+        st.equal(qs.stringify({ a: { b: { c: { d: 'e' } } } }, { allowDots: true }), 'a.b.c.d=e');
+        st.end();
+    });
+
+    t.test('stringifies an array value', function (st) {
+        st.equal(
+            qs.stringify({ a: ['b', 'c', 'd'] }, { arrayFormat: 'indices' }),
+            'a%5B0%5D=b&a%5B1%5D=c&a%5B2%5D=d',
+            'indices => indices'
+        );
+        st.equal(
+            qs.stringify({ a: ['b', 'c', 'd'] }, { arrayFormat: 'brackets' }),
+            'a%5B%5D=b&a%5B%5D=c&a%5B%5D=d',
+            'brackets => brackets'
+        );
+        st.equal(
+            qs.stringify({ a: ['b', 'c', 'd'] }, { arrayFormat: 'comma' }),
+            'a=b%2Cc%2Cd',
+            'comma => comma'
+        );
+        st.equal(
+            qs.stringify({ a: ['b', 'c', 'd'] }, { arrayFormat: 'comma', commaRoundTrip: true }),
+            'a=b%2Cc%2Cd',
+            'comma round trip => comma'
+        );
+        st.equal(
+            qs.stringify({ a: ['b', 'c', 'd'] }),
+            'a%5B0%5D=b&a%5B1%5D=c&a%5B2%5D=d',
+            'default => indices'
+        );
+        st.end();
+    });
+
+    t.test('`skipNulls` option', function (st) {
+        st.equal(
+            qs.stringify({ a: 'b', c: null }, { skipNulls: true }),
+            'a=b',
+            'omits nulls when asked'
+        );
+
+        st.equal(
+            qs.stringify({ a: { b: 'c', d: null } }, { skipNulls: true }),
+            'a%5Bb%5D=c',
+            'omits nested nulls when asked'
+        );
+
+        st.end();
+    });
+
+    t.test('omits array indices when asked', function (st) {
+        st.equal(qs.stringify({ a: ['b', 'c', 'd'] }, { indices: false }), 'a=b&a=c&a=d');
+
+        st.end();
+    });
+
+    t.test('omits object key/value pair when value is empty array', function (st) {
+        st.equal(qs.stringify({ a: [], b: 'zz' }), 'b=zz');
+
+        st.end();
+    });
+
+    t.test('should not omit object key/value pair when value is empty array and when asked', function (st) {
+        st.equal(qs.stringify({ a: [], b: 'zz' }), 'b=zz');
+        st.equal(qs.stringify({ a: [], b: 'zz' }, { allowEmptyArrays: false }), 'b=zz');
+        st.equal(qs.stringify({ a: [], b: 'zz' }, { allowEmptyArrays: true }), 'a[]&b=zz');
+
+        st.end();
+    });
+
+    t.test('should throw when allowEmptyArrays is not of type boolean', function (st) {
+        st['throws'](
+            function () { qs.stringify({ a: [], b: 'zz' }, { allowEmptyArrays: 'foobar' }); },
+            TypeError
+        );
+
+        st['throws'](
+            function () { qs.stringify({ a: [], b: 'zz' }, { allowEmptyArrays: 0 }); },
+            TypeError
+        );
+
+        st['throws'](
+            function () { qs.stringify({ a: [], b: 'zz' }, { allowEmptyArrays: NaN }); },
+            TypeError
+        );
+
+        st['throws'](
+            function () { qs.stringify({ a: [], b: 'zz' }, { allowEmptyArrays: null }); },
+            TypeError
+        );
+
+        st.end();
+    });
+
+    t.test('allowEmptyArrays + strictNullHandling', function (st) {
+        st.equal(
+            qs.stringify(
+                { testEmptyArray: [] },
+                { strictNullHandling: true, allowEmptyArrays: true }
+            ),
+            'testEmptyArray[]'
+        );
+
+        st.end();
+    });
+
+    t.test('stringifies an array value with one item vs multiple items', function (st) {
+        st.test('non-array item', function (s2t) {
+            s2t.equal(qs.stringify({ a: 'c' }, { encodeValuesOnly: true, arrayFormat: 'indices' }), 'a=c');
+            s2t.equal(qs.stringify({ a: 'c' }, { encodeValuesOnly: true, arrayFormat: 'brackets' }), 'a=c');
+            s2t.equal(qs.stringify({ a: 'c' }, { encodeValuesOnly: true, arrayFormat: 'comma' }), 'a=c');
+            s2t.equal(qs.stringify({ a: 'c' }, { encodeValuesOnly: true }), 'a=c');
+
+            s2t.end();
+        });
+
+        st.test('array with a single item', function (s2t) {
+            s2t.equal(qs.stringify({ a: ['c'] }, { encodeValuesOnly: true, arrayFormat: 'indices' }), 'a[0]=c');
+            s2t.equal(qs.stringify({ a: ['c'] }, { encodeValuesOnly: true, arrayFormat: 'brackets' }), 'a[]=c');
+            s2t.equal(qs.stringify({ a: ['c'] }, { encodeValuesOnly: true, arrayFormat: 'comma' }), 'a=c');
+            s2t.equal(qs.stringify({ a: ['c'] }, { encodeValuesOnly: true, arrayFormat: 'comma', commaRoundTrip: true }), 'a[]=c'); // so it parses back as an array
+            s2t.equal(qs.stringify({ a: ['c'] }, { encodeValuesOnly: true }), 'a[0]=c');
+
+            s2t.end();
+        });
+
+        st.test('array with multiple items', function (s2t) {
+            s2t.equal(qs.stringify({ a: ['c', 'd'] }, { encodeValuesOnly: true, arrayFormat: 'indices' }), 'a[0]=c&a[1]=d');
+            s2t.equal(qs.stringify({ a: ['c', 'd'] }, { encodeValuesOnly: true, arrayFormat: 'brackets' }), 'a[]=c&a[]=d');
+            s2t.equal(qs.stringify({ a: ['c', 'd'] }, { encodeValuesOnly: true, arrayFormat: 'comma' }), 'a=c,d');
+            s2t.equal(qs.stringify({ a: ['c', 'd'] }, { encodeValuesOnly: true, arrayFormat: 'comma', commaRoundTrip: true }), 'a=c,d');
+            s2t.equal(qs.stringify({ a: ['c', 'd'] }, { encodeValuesOnly: true }), 'a[0]=c&a[1]=d');
+
+            s2t.end();
+        });
+
+        st.test('array with multiple items with a comma inside', function (s2t) {
+            s2t.equal(qs.stringify({ a: ['c,d', 'e'] }, { encodeValuesOnly: true, arrayFormat: 'comma' }), 'a=c%2Cd,e');
+            s2t.equal(qs.stringify({ a: ['c,d', 'e'] }, { arrayFormat: 'comma' }), 'a=c%2Cd%2Ce');
+
+            s2t.equal(qs.stringify({ a: ['c,d', 'e'] }, { encodeValuesOnly: true, arrayFormat: 'comma', commaRoundTrip: true }), 'a=c%2Cd,e');
+            s2t.equal(qs.stringify({ a: ['c,d', 'e'] }, { arrayFormat: 'comma', commaRoundTrip: true }), 'a=c%2Cd%2Ce');
+
+            s2t.end();
+        });
+
+        st.end();
+    });
+
+    t.test('stringifies a nested array value', function (st) {
+        st.equal(qs.stringify({ a: { b: ['c', 'd'] } }, { encodeValuesOnly: true, arrayFormat: 'indices' }), 'a[b][0]=c&a[b][1]=d');
+        st.equal(qs.stringify({ a: { b: ['c', 'd'] } }, { encodeValuesOnly: true, arrayFormat: 'brackets' }), 'a[b][]=c&a[b][]=d');
+        st.equal(qs.stringify({ a: { b: ['c', 'd'] } }, { encodeValuesOnly: true, arrayFormat: 'comma' }), 'a[b]=c,d');
+        st.equal(qs.stringify({ a: { b: ['c', 'd'] } }, { encodeValuesOnly: true }), 'a[b][0]=c&a[b][1]=d');
+        st.end();
+    });
+
+    t.test('stringifies comma and empty array values', function (st) {
+        st.equal(qs.stringify({ a: [',', '', 'c,d%'] }, { encode: false, arrayFormat: 'indices' }), 'a[0]=,&a[1]=&a[2]=c,d%');
+        st.equal(qs.stringify({ a: [',', '', 'c,d%'] }, { encode: false, arrayFormat: 'brackets' }), 'a[]=,&a[]=&a[]=c,d%');
+        st.equal(qs.stringify({ a: [',', '', 'c,d%'] }, { encode: false, arrayFormat: 'comma' }), 'a=,,,c,d%');
+        st.equal(qs.stringify({ a: [',', '', 'c,d%'] }, { encode: false, arrayFormat: 'repeat' }), 'a=,&a=&a=c,d%');
+
+        st.equal(qs.stringify({ a: [',', '', 'c,d%'] }, { encode: true, encodeValuesOnly: true, arrayFormat: 'indices' }), 'a[0]=%2C&a[1]=&a[2]=c%2Cd%25');
+        st.equal(qs.stringify({ a: [',', '', 'c,d%'] }, { encode: true, encodeValuesOnly: true, arrayFormat: 'brackets' }), 'a[]=%2C&a[]=&a[]=c%2Cd%25');
+        st.equal(qs.stringify({ a: [',', '', 'c,d%'] }, { encode: true, encodeValuesOnly: true, arrayFormat: 'comma' }), 'a=%2C,,c%2Cd%25');
+        st.equal(qs.stringify({ a: [',', '', 'c,d%'] }, { encode: true, encodeValuesOnly: true, arrayFormat: 'repeat' }), 'a=%2C&a=&a=c%2Cd%25');
+
+        st.equal(qs.stringify({ a: [',', '', 'c,d%'] }, { encode: true, encodeValuesOnly: false, arrayFormat: 'indices' }), 'a%5B0%5D=%2C&a%5B1%5D=&a%5B2%5D=c%2Cd%25');
+        st.equal(qs.stringify({ a: [',', '', 'c,d%'] }, { encode: true, encodeValuesOnly: false, arrayFormat: 'brackets' }), 'a%5B%5D=%2C&a%5B%5D=&a%5B%5D=c%2Cd%25');
+        st.equal(qs.stringify({ a: [',', '', 'c,d%'] }, { encode: true, encodeValuesOnly: false, arrayFormat: 'comma' }), 'a=%2C%2C%2Cc%2Cd%25');
+        st.equal(qs.stringify({ a: [',', '', 'c,d%'] }, { encode: true, encodeValuesOnly: false, arrayFormat: 'repeat' }), 'a=%2C&a=&a=c%2Cd%25');
+
+        st.end();
+    });
+
+    t.test('stringifies comma and empty non-array values', function (st) {
+        st.equal(qs.stringify({ a: ',', b: '', c: 'c,d%' }, { encode: false, arrayFormat: 'indices' }), 'a=,&b=&c=c,d%');
+        st.equal(qs.stringify({ a: ',', b: '', c: 'c,d%' }, { encode: false, arrayFormat: 'brackets' }), 'a=,&b=&c=c,d%');
+        st.equal(qs.stringify({ a: ',', b: '', c: 'c,d%' }, { encode: false, arrayFormat: 'comma' }), 'a=,&b=&c=c,d%');
+        st.equal(qs.stringify({ a: ',', b: '', c: 'c,d%' }, { encode: false, arrayFormat: 'repeat' }), 'a=,&b=&c=c,d%');
+
+        st.equal(qs.stringify({ a: ',', b: '', c: 'c,d%' }, { encode: true, encodeValuesOnly: true, arrayFormat: 'indices' }), 'a=%2C&b=&c=c%2Cd%25');
+        st.equal(qs.stringify({ a: ',', b: '', c: 'c,d%' }, { encode: true, encodeValuesOnly: true, arrayFormat: 'brackets' }), 'a=%2C&b=&c=c%2Cd%25');
+        st.equal(qs.stringify({ a: ',', b: '', c: 'c,d%' }, { encode: true, encodeValuesOnly: true, arrayFormat: 'comma' }), 'a=%2C&b=&c=c%2Cd%25');
+        st.equal(qs.stringify({ a: ',', b: '', c: 'c,d%' }, { encode: true, encodeValuesOnly: true, arrayFormat: 'repeat' }), 'a=%2C&b=&c=c%2Cd%25');
+
+        st.equal(qs.stringify({ a: ',', b: '', c: 'c,d%' }, { encode: true, encodeValuesOnly: false, arrayFormat: 'indices' }), 'a=%2C&b=&c=c%2Cd%25');
+        st.equal(qs.stringify({ a: ',', b: '', c: 'c,d%' }, { encode: true, encodeValuesOnly: false, arrayFormat: 'brackets' }), 'a=%2C&b=&c=c%2Cd%25');
+        st.equal(qs.stringify({ a: ',', b: '', c: 'c,d%' }, { encode: true, encodeValuesOnly: false, arrayFormat: 'comma' }), 'a=%2C&b=&c=c%2Cd%25');
+        st.equal(qs.stringify({ a: ',', b: '', c: 'c,d%' }, { encode: true, encodeValuesOnly: false, arrayFormat: 'repeat' }), 'a=%2C&b=&c=c%2Cd%25');
+
+        st.end();
+    });
+
+    t.test('stringifies a nested array value with dots notation', function (st) {
+        st.equal(
+            qs.stringify(
+                { a: { b: ['c', 'd'] } },
+                { allowDots: true, encodeValuesOnly: true, arrayFormat: 'indices' }
+            ),
+            'a.b[0]=c&a.b[1]=d',
+            'indices: stringifies with dots + indices'
+        );
+        st.equal(
+            qs.stringify(
+                { a: { b: ['c', 'd'] } },
+                { allowDots: true, encodeValuesOnly: true, arrayFormat: 'brackets' }
+            ),
+            'a.b[]=c&a.b[]=d',
+            'brackets: stringifies with dots + brackets'
+        );
+        st.equal(
+            qs.stringify(
+                { a: { b: ['c', 'd'] } },
+                { allowDots: true, encodeValuesOnly: true, arrayFormat: 'comma' }
+            ),
+            'a.b=c,d',
+            'comma: stringifies with dots + comma'
+        );
+        st.equal(
+            qs.stringify(
+                { a: { b: ['c', 'd'] } },
+                { allowDots: true, encodeValuesOnly: true }
+            ),
+            'a.b[0]=c&a.b[1]=d',
+            'default: stringifies with dots + indices'
+        );
+        st.end();
+    });
+
+    t.test('stringifies an object inside an array', function (st) {
+        st.equal(
+            qs.stringify({ a: [{ b: 'c' }] }, { arrayFormat: 'indices', encodeValuesOnly: true }),
+            'a[0][b]=c',
+            'indices => indices'
+        );
+        st.equal(
+            qs.stringify({ a: [{ b: 'c' }] }, { arrayFormat: 'repeat', encodeValuesOnly: true }),
+            'a[b]=c',
+            'repeat => repeat'
+        );
+        st.equal(
+            qs.stringify({ a: [{ b: 'c' }] }, { arrayFormat: 'brackets', encodeValuesOnly: true }),
+            'a[][b]=c',
+            'brackets => brackets'
+        );
+        st.equal(
+            qs.stringify({ a: [{ b: 'c' }] }, { encodeValuesOnly: true }),
+            'a[0][b]=c',
+            'default => indices'
+        );
+
+        st.equal(
+            qs.stringify({ a: [{ b: { c: [1] } }] }, { arrayFormat: 'indices', encodeValuesOnly: true }),
+            'a[0][b][c][0]=1',
+            'indices => indices'
+        );
+        st.equal(
+            qs.stringify({ a: [{ b: { c: [1] } }] }, { arrayFormat: 'repeat', encodeValuesOnly: true }),
+            'a[b][c]=1',
+            'repeat => repeat'
+        );
+        st.equal(
+            qs.stringify({ a: [{ b: { c: [1] } }] }, { arrayFormat: 'brackets', encodeValuesOnly: true }),
+            'a[][b][c][]=1',
+            'brackets => brackets'
+        );
+        st.equal(
+            qs.stringify({ a: [{ b: { c: [1] } }] }, { encodeValuesOnly: true }),
+            'a[0][b][c][0]=1',
+            'default => indices'
+        );
+
+        st.end();
+    });
+
+    t.test('stringifies an array with mixed objects and primitives', function (st) {
+        st.equal(
+            qs.stringify({ a: [{ b: 1 }, 2, 3] }, { encodeValuesOnly: true, arrayFormat: 'indices' }),
+            'a[0][b]=1&a[1]=2&a[2]=3',
+            'indices => indices'
+        );
+        st.equal(
+            qs.stringify({ a: [{ b: 1 }, 2, 3] }, { encodeValuesOnly: true, arrayFormat: 'brackets' }),
+            'a[][b]=1&a[]=2&a[]=3',
+            'brackets => brackets'
+        );
+        st.equal(
+            qs.stringify({ a: [{ b: 1 }, 2, 3] }, { encodeValuesOnly: true, arrayFormat: 'comma' }),
+            '???',
+            'brackets => brackets',
+            { skip: 'TODO: figure out what this should do' }
+        );
+        st.equal(
+            qs.stringify({ a: [{ b: 1 }, 2, 3] }, { encodeValuesOnly: true }),
+            'a[0][b]=1&a[1]=2&a[2]=3',
+            'default => indices'
+        );
+
+        st.end();
+    });
+
+    t.test('stringifies an object inside an array with dots notation', function (st) {
+        st.equal(
+            qs.stringify(
+                { a: [{ b: 'c' }] },
+                { allowDots: true, encode: false, arrayFormat: 'indices' }
+            ),
+            'a[0].b=c',
+            'indices => indices'
+        );
+        st.equal(
+            qs.stringify(
+                { a: [{ b: 'c' }] },
+                { allowDots: true, encode: false, arrayFormat: 'brackets' }
+            ),
+            'a[].b=c',
+            'brackets => brackets'
+        );
+        st.equal(
+            qs.stringify(
+                { a: [{ b: 'c' }] },
+                { allowDots: true, encode: false }
+            ),
+            'a[0].b=c',
+            'default => indices'
+        );
+
+        st.equal(
+            qs.stringify(
+                { a: [{ b: { c: [1] } }] },
+                { allowDots: true, encode: false, arrayFormat: 'indices' }
+            ),
+            'a[0].b.c[0]=1',
+            'indices => indices'
+        );
+        st.equal(
+            qs.stringify(
+                { a: [{ b: { c: [1] } }] },
+                { allowDots: true, encode: false, arrayFormat: 'brackets' }
+            ),
+            'a[].b.c[]=1',
+            'brackets => brackets'
+        );
+        st.equal(
+            qs.stringify(
+                { a: [{ b: { c: [1] } }] },
+                { allowDots: true, encode: false }
+            ),
+            'a[0].b.c[0]=1',
+            'default => indices'
+        );
+
+        st.end();
+    });
+
+    t.test('does not omit object keys when indices = false', function (st) {
+        st.equal(qs.stringify({ a: [{ b: 'c' }] }, { indices: false }), 'a%5Bb%5D=c');
+        st.end();
+    });
+
+    t.test('uses indices notation for arrays when indices=true', function (st) {
+        st.equal(qs.stringify({ a: ['b', 'c'] }, { indices: true }), 'a%5B0%5D=b&a%5B1%5D=c');
+        st.end();
+    });
+
+    t.test('uses indices notation for arrays when no arrayFormat is specified', function (st) {
+        st.equal(qs.stringify({ a: ['b', 'c'] }), 'a%5B0%5D=b&a%5B1%5D=c');
+        st.end();
+    });
+
+    t.test('uses indices notation for arrays when arrayFormat=indices', function (st) {
+        st.equal(qs.stringify({ a: ['b', 'c'] }, { arrayFormat: 'indices' }), 'a%5B0%5D=b&a%5B1%5D=c');
+        st.end();
+    });
+
+    t.test('uses repeat notation for arrays when arrayFormat=repeat', function (st) {
+        st.equal(qs.stringify({ a: ['b', 'c'] }, { arrayFormat: 'repeat' }), 'a=b&a=c');
+        st.end();
+    });
+
+    t.test('uses brackets notation for arrays when arrayFormat=brackets', function (st) {
+        st.equal(qs.stringify({ a: ['b', 'c'] }, { arrayFormat: 'brackets' }), 'a%5B%5D=b&a%5B%5D=c');
+        st.end();
+    });
+
+    t.test('stringifies a complicated object', function (st) {
+        st.equal(qs.stringify({ a: { b: 'c', d: 'e' } }), 'a%5Bb%5D=c&a%5Bd%5D=e');
+        st.end();
+    });
+
+    t.test('stringifies an empty value', function (st) {
+        st.equal(qs.stringify({ a: '' }), 'a=');
+        st.equal(qs.stringify({ a: null }, { strictNullHandling: true }), 'a');
+
+        st.equal(qs.stringify({ a: '', b: '' }), 'a=&b=');
+        st.equal(qs.stringify({ a: null, b: '' }, { strictNullHandling: true }), 'a&b=');
+
+        st.equal(qs.stringify({ a: { b: '' } }), 'a%5Bb%5D=');
+        st.equal(qs.stringify({ a: { b: null } }, { strictNullHandling: true }), 'a%5Bb%5D');
+        st.equal(qs.stringify({ a: { b: null } }, { strictNullHandling: false }), 'a%5Bb%5D=');
+
+        st.end();
+    });
+
+    t.test('stringifies an empty array in different arrayFormat', function (st) {
+        st.equal(qs.stringify({ a: [], b: [null], c: 'c' }, { encode: false }), 'b[0]=&c=c');
+        // arrayFormat default
+        st.equal(qs.stringify({ a: [], b: [null], c: 'c' }, { encode: false, arrayFormat: 'indices' }), 'b[0]=&c=c');
+        st.equal(qs.stringify({ a: [], b: [null], c: 'c' }, { encode: false, arrayFormat: 'brackets' }), 'b[]=&c=c');
+        st.equal(qs.stringify({ a: [], b: [null], c: 'c' }, { encode: false, arrayFormat: 'repeat' }), 'b=&c=c');
+        st.equal(qs.stringify({ a: [], b: [null], c: 'c' }, { encode: false, arrayFormat: 'comma' }), 'b=&c=c');
+        st.equal(qs.stringify({ a: [], b: [null], c: 'c' }, { encode: false, arrayFormat: 'comma', commaRoundTrip: true }), 'b[]=&c=c');
+        // with strictNullHandling
+        st.equal(qs.stringify({ a: [], b: [null], c: 'c' }, { encode: false, arrayFormat: 'indices', strictNullHandling: true }), 'b[0]&c=c');
+        st.equal(qs.stringify({ a: [], b: [null], c: 'c' }, { encode: false, arrayFormat: 'brackets', strictNullHandling: true }), 'b[]&c=c');
+        st.equal(qs.stringify({ a: [], b: [null], c: 'c' }, { encode: false, arrayFormat: 'repeat', strictNullHandling: true }), 'b&c=c');
+        st.equal(qs.stringify({ a: [], b: [null], c: 'c' }, { encode: false, arrayFormat: 'comma', strictNullHandling: true }), 'b&c=c');
+        st.equal(qs.stringify({ a: [], b: [null], c: 'c' }, { encode: false, arrayFormat: 'comma', strictNullHandling: true, commaRoundTrip: true }), 'b[]&c=c');
+        // with skipNulls
+        st.equal(qs.stringify({ a: [], b: [null], c: 'c' }, { encode: false, arrayFormat: 'indices', skipNulls: true }), 'c=c');
+        st.equal(qs.stringify({ a: [], b: [null], c: 'c' }, { encode: false, arrayFormat: 'brackets', skipNulls: true }), 'c=c');
+        st.equal(qs.stringify({ a: [], b: [null], c: 'c' }, { encode: false, arrayFormat: 'repeat', skipNulls: true }), 'c=c');
+        st.equal(qs.stringify({ a: [], b: [null], c: 'c' }, { encode: false, arrayFormat: 'comma', skipNulls: true }), 'c=c');
+
+        st.end();
+    });
+
+    t.test('stringifies a null object', { skip: !hasProto }, function (st) {
+        st.equal(qs.stringify({ __proto__: null, a: 'b' }), 'a=b');
+        st.end();
+    });
+
+    t.test('returns an empty string for invalid input', function (st) {
+        st.equal(qs.stringify(undefined), '');
+        st.equal(qs.stringify(false), '');
+        st.equal(qs.stringify(null), '');
+        st.equal(qs.stringify(''), '');
+        st.end();
+    });
+
+    t.test('stringifies an object with a null object as a child', { skip: !hasProto }, function (st) {
+        st.equal(qs.stringify({ a: { __proto__: null, b: 'c' } }), 'a%5Bb%5D=c');
+        st.end();
+    });
+
+    t.test('drops keys with a value of undefined', function (st) {
+        st.equal(qs.stringify({ a: undefined }), '');
+
+        st.equal(qs.stringify({ a: { b: undefined, c: null } }, { strictNullHandling: true }), 'a%5Bc%5D');
+        st.equal(qs.stringify({ a: { b: undefined, c: null } }, { strictNullHandling: false }), 'a%5Bc%5D=');
+        st.equal(qs.stringify({ a: { b: undefined, c: '' } }), 'a%5Bc%5D=');
+        st.end();
+    });
+
+    t.test('url encodes values', function (st) {
+        st.equal(qs.stringify({ a: 'b c' }), 'a=b%20c');
+        st.end();
+    });
+
+    t.test('stringifies a date', function (st) {
+        var now = new Date();
+        var str = 'a=' + encodeURIComponent(now.toISOString());
+        st.equal(qs.stringify({ a: now }), str);
+        st.end();
+    });
+
+    t.test('stringifies the weird object from qs', function (st) {
+        st.equal(qs.stringify({ 'my weird field': '~q1!2"\'w$5&7/z8)?' }), 'my%20weird%20field=~q1%212%22%27w%245%267%2Fz8%29%3F');
+        st.end();
+    });
+
+    t.test('skips properties that are part of the object prototype', function (st) {
+        st.intercept(Object.prototype, 'crash', { value: 'test' });
+
+        st.equal(qs.stringify({ a: 'b' }), 'a=b');
+        st.equal(qs.stringify({ a: { b: 'c' } }), 'a%5Bb%5D=c');
+
+        st.end();
+    });
+
+    t.test('stringifies boolean values', function (st) {
+        st.equal(qs.stringify({ a: true }), 'a=true');
+        st.equal(qs.stringify({ a: { b: true } }), 'a%5Bb%5D=true');
+        st.equal(qs.stringify({ b: false }), 'b=false');
+        st.equal(qs.stringify({ b: { c: false } }), 'b%5Bc%5D=false');
+        st.end();
+    });
+
+    t.test('stringifies buffer values', function (st) {
+        st.equal(qs.stringify({ a: SaferBuffer.from('test') }), 'a=test');
+        st.equal(qs.stringify({ a: { b: SaferBuffer.from('test') } }), 'a%5Bb%5D=test');
+        st.end();
+    });
+
+    t.test('stringifies an object using an alternative delimiter', function (st) {
+        st.equal(qs.stringify({ a: 'b', c: 'd' }, { delimiter: ';' }), 'a=b;c=d');
+        st.end();
+    });
+
+    t.test('does not blow up when Buffer global is missing', function (st) {
+        var restore = mockProperty(global, 'Buffer', { 'delete': true });
+
+        var result = qs.stringify({ a: 'b', c: 'd' });
+
+        restore();
+
+        st.equal(result, 'a=b&c=d');
+        st.end();
+    });
+
+    t.test('does not crash when parsing circular references', function (st) {
+        var a = {};
+        a.b = a;
+
+        st['throws'](
+            function () { qs.stringify({ 'foo[bar]': 'baz', 'foo[baz]': a }); },
+            /RangeError: Cyclic object value/,
+            'cyclic values throw'
+        );
+
+        var circular = {
+            a: 'value'
+        };
+        circular.a = circular;
+        st['throws'](
+            function () { qs.stringify(circular); },
+            /RangeError: Cyclic object value/,
+            'cyclic values throw'
+        );
+
+        var arr = ['a'];
+        st.doesNotThrow(
+            function () { qs.stringify({ x: arr, y: arr }); },
+            'non-cyclic values do not throw'
+        );
+
+        st.end();
+    });
+
+    t.test('non-circular duplicated references can still work', function (st) {
+        var hourOfDay = {
+            'function': 'hour_of_day'
+        };
+
+        var p1 = {
+            'function': 'gte',
+            arguments: [hourOfDay, 0]
+        };
+        var p2 = {
+            'function': 'lte',
+            arguments: [hourOfDay, 23]
+        };
+
+        st.equal(
+            qs.stringify({ filters: { $and: [p1, p2] } }, { encodeValuesOnly: true, arrayFormat: 'indices' }),
+            'filters[$and][0][function]=gte&filters[$and][0][arguments][0][function]=hour_of_day&filters[$and][0][arguments][1]=0&filters[$and][1][function]=lte&filters[$and][1][arguments][0][function]=hour_of_day&filters[$and][1][arguments][1]=23'
+        );
+        st.equal(
+            qs.stringify({ filters: { $and: [p1, p2] } }, { encodeValuesOnly: true, arrayFormat: 'brackets' }),
+            'filters[$and][][function]=gte&filters[$and][][arguments][][function]=hour_of_day&filters[$and][][arguments][]=0&filters[$and][][function]=lte&filters[$and][][arguments][][function]=hour_of_day&filters[$and][][arguments][]=23'
+        );
+        st.equal(
+            qs.stringify({ filters: { $and: [p1, p2] } }, { encodeValuesOnly: true, arrayFormat: 'repeat' }),
+            'filters[$and][function]=gte&filters[$and][arguments][function]=hour_of_day&filters[$and][arguments]=0&filters[$and][function]=lte&filters[$and][arguments][function]=hour_of_day&filters[$and][arguments]=23'
+        );
+
+        st.end();
+    });
+
+    t.test('selects properties when filter=array', function (st) {
+        st.equal(qs.stringify({ a: 'b' }, { filter: ['a'] }), 'a=b');
+        st.equal(qs.stringify({ a: 1 }, { filter: [] }), '');
+
+        st.equal(
+            qs.stringify(
+                { a: { b: [1, 2, 3, 4], c: 'd' }, c: 'f' },
+                { filter: ['a', 'b', 0, 2], arrayFormat: 'indices' }
+            ),
+            'a%5Bb%5D%5B0%5D=1&a%5Bb%5D%5B2%5D=3',
+            'indices => indices'
+        );
+        st.equal(
+            qs.stringify(
+                { a: { b: [1, 2, 3, 4], c: 'd' }, c: 'f' },
+                { filter: ['a', 'b', 0, 2], arrayFormat: 'brackets' }
+            ),
+            'a%5Bb%5D%5B%5D=1&a%5Bb%5D%5B%5D=3',
+            'brackets => brackets'
+        );
+        st.equal(
+            qs.stringify(
+                { a: { b: [1, 2, 3, 4], c: 'd' }, c: 'f' },
+                { filter: ['a', 'b', 0, 2] }
+            ),
+            'a%5Bb%5D%5B0%5D=1&a%5Bb%5D%5B2%5D=3',
+            'default => indices'
+        );
+
+        st.end();
+    });
+
+    t.test('supports custom representations when filter=function', function (st) {
+        var calls = 0;
+        var obj = { a: 'b', c: 'd', e: { f: new Date(1257894000000) } };
+        var filterFunc = function (prefix, value) {
+            calls += 1;
+            if (calls === 1) {
+                st.equal(prefix, '', 'prefix is empty');
+                st.equal(value, obj);
+            } else if (prefix === 'c') {
+                return void 0;
+            } else if (value instanceof Date) {
+                st.equal(prefix, 'e[f]');
+                return value.getTime();
+            }
+            return value;
+        };
+
+        st.equal(qs.stringify(obj, { filter: filterFunc }), 'a=b&e%5Bf%5D=1257894000000');
+        st.equal(calls, 5);
+        st.end();
+    });
+
+    t.test('can disable uri encoding', function (st) {
+        st.equal(qs.stringify({ a: 'b' }, { encode: false }), 'a=b');
+        st.equal(qs.stringify({ a: { b: 'c' } }, { encode: false }), 'a[b]=c');
+        st.equal(qs.stringify({ a: 'b', c: null }, { strictNullHandling: true, encode: false }), 'a=b&c');
+        st.end();
+    });
+
+    t.test('can sort the keys', function (st) {
+        var sort = function (a, b) {
+            return a.localeCompare(b);
+        };
+        st.equal(qs.stringify({ a: 'c', z: 'y', b: 'f' }, { sort: sort }), 'a=c&b=f&z=y');
+        st.equal(qs.stringify({ a: 'c', z: { j: 'a', i: 'b' }, b: 'f' }, { sort: sort }), 'a=c&b=f&z%5Bi%5D=b&z%5Bj%5D=a');
+        st.end();
+    });
+
+    t.test('can sort the keys at depth 3 or more too', function (st) {
+        var sort = function (a, b) {
+            return a.localeCompare(b);
+        };
+        st.equal(
+            qs.stringify(
+                { a: 'a', z: { zj: { zjb: 'zjb', zja: 'zja' }, zi: { zib: 'zib', zia: 'zia' } }, b: 'b' },
+                { sort: sort, encode: false }
+            ),
+            'a=a&b=b&z[zi][zia]=zia&z[zi][zib]=zib&z[zj][zja]=zja&z[zj][zjb]=zjb'
+        );
+        st.equal(
+            qs.stringify(
+                { a: 'a', z: { zj: { zjb: 'zjb', zja: 'zja' }, zi: { zib: 'zib', zia: 'zia' } }, b: 'b' },
+                { sort: null, encode: false }
+            ),
+            'a=a&z[zj][zjb]=zjb&z[zj][zja]=zja&z[zi][zib]=zib&z[zi][zia]=zia&b=b'
+        );
+        st.end();
+    });
+
+    t.test('can stringify with custom encoding', function (st) {
+        st.equal(qs.stringify({ 県: '大阪府', '': '' }, {
+            encoder: function (str) {
+                if (str.length === 0) {
+                    return '';
+                }
+                var buf = iconv.encode(str, 'shiftjis');
+                var result = [];
+                for (var i = 0; i < buf.length; ++i) {
+                    result.push(buf.readUInt8(i).toString(16));
+                }
+                return '%' + result.join('%');
+            }
+        }), '%8c%a7=%91%e5%8d%e3%95%7b&=');
+        st.end();
+    });
+
+    t.test('receives the default encoder as a second argument', function (st) {
+        st.plan(8);
+
+        qs.stringify({ a: 1, b: new Date(), c: true, d: [1] }, {
+            encoder: function (str) {
+                st.match(typeof str, /^(?:string|number|boolean)$/);
+                return '';
+            }
+        });
+
+        st.end();
+    });
+
+    t.test('receives the default encoder as a second argument', function (st) {
+        st.plan(2);
+
+        qs.stringify({ a: 1 }, {
+            encoder: function (str, defaultEncoder) {
+                st.equal(defaultEncoder, utils.encode);
+            }
+        });
+
+        st.end();
+    });
+
+    t.test('throws error with wrong encoder', function (st) {
+        st['throws'](function () {
+            qs.stringify({}, { encoder: 'string' });
+        }, new TypeError('Encoder has to be a function.'));
+        st.end();
+    });
+
+    t.test('can use custom encoder for a buffer object', { skip: typeof Buffer === 'undefined' }, function (st) {
+        st.equal(qs.stringify({ a: SaferBuffer.from([1]) }, {
+            encoder: function (buffer) {
+                if (typeof buffer === 'string') {
+                    return buffer;
+                }
+                return String.fromCharCode(buffer.readUInt8(0) + 97);
+            }
+        }), 'a=b');
+
+        st.equal(qs.stringify({ a: SaferBuffer.from('a b') }, {
+            encoder: function (buffer) {
+                return buffer;
+            }
+        }), 'a=a b');
+        st.end();
+    });
+
+    t.test('serializeDate option', function (st) {
+        var date = new Date();
+        st.equal(
+            qs.stringify({ a: date }),
+            'a=' + date.toISOString().replace(/:/g, '%3A'),
+            'default is toISOString'
+        );
+
+        var mutatedDate = new Date();
+        mutatedDate.toISOString = function () {
+            throw new SyntaxError();
+        };
+        st['throws'](function () {
+            mutatedDate.toISOString();
+        }, SyntaxError);
+        st.equal(
+            qs.stringify({ a: mutatedDate }),
+            'a=' + Date.prototype.toISOString.call(mutatedDate).replace(/:/g, '%3A'),
+            'toISOString works even when method is not locally present'
+        );
+
+        var specificDate = new Date(6);
+        st.equal(
+            qs.stringify(
+                { a: specificDate },
+                { serializeDate: function (d) { return d.getTime() * 7; } }
+            ),
+            'a=42',
+            'custom serializeDate function called'
+        );
+
+        st.equal(
+            qs.stringify(
+                { a: [date] },
+                {
+                    serializeDate: function (d) { return d.getTime(); },
+                    arrayFormat: 'comma'
+                }
+            ),
+            'a=' + date.getTime(),
+            'works with arrayFormat comma'
+        );
+        st.equal(
+            qs.stringify(
+                { a: [date] },
+                {
+                    serializeDate: function (d) { return d.getTime(); },
+                    arrayFormat: 'comma',
+                    commaRoundTrip: true
+                }
+            ),
+            'a%5B%5D=' + date.getTime(),
+            'works with arrayFormat comma'
+        );
+
+        st.end();
+    });
+
+    t.test('RFC 1738 serialization', function (st) {
+        st.equal(qs.stringify({ a: 'b c' }, { format: qs.formats.RFC1738 }), 'a=b+c');
+        st.equal(qs.stringify({ 'a b': 'c d' }, { format: qs.formats.RFC1738 }), 'a+b=c+d');
+        st.equal(qs.stringify({ 'a b': SaferBuffer.from('a b') }, { format: qs.formats.RFC1738 }), 'a+b=a+b');
+
+        st.equal(qs.stringify({ 'foo(ref)': 'bar' }, { format: qs.formats.RFC1738 }), 'foo(ref)=bar');
+
+        st.end();
+    });
+
+    t.test('RFC 3986 spaces serialization', function (st) {
+        st.equal(qs.stringify({ a: 'b c' }, { format: qs.formats.RFC3986 }), 'a=b%20c');
+        st.equal(qs.stringify({ 'a b': 'c d' }, { format: qs.formats.RFC3986 }), 'a%20b=c%20d');
+        st.equal(qs.stringify({ 'a b': SaferBuffer.from('a b') }, { format: qs.formats.RFC3986 }), 'a%20b=a%20b');
+
+        st.end();
+    });
+
+    t.test('Backward compatibility to RFC 3986', function (st) {
+        st.equal(qs.stringify({ a: 'b c' }), 'a=b%20c');
+        st.equal(qs.stringify({ 'a b': SaferBuffer.from('a b') }), 'a%20b=a%20b');
+
+        st.end();
+    });
+
+    t.test('Edge cases and unknown formats', function (st) {
+        ['UFO1234', false, 1234, null, {}, []].forEach(function (format) {
+            st['throws'](
+                function () {
+                    qs.stringify({ a: 'b c' }, { format: format });
+                },
+                new TypeError('Unknown format option provided.')
+            );
+        });
+        st.end();
+    });
+
+    t.test('encodeValuesOnly', function (st) {
+        st.equal(
+            qs.stringify(
+                { a: 'b', c: ['d', 'e=f'], f: [['g'], ['h']] },
+                { encodeValuesOnly: true, arrayFormat: 'indices' }
+            ),
+            'a=b&c[0]=d&c[1]=e%3Df&f[0][0]=g&f[1][0]=h',
+            'encodeValuesOnly + indices'
+        );
+        st.equal(
+            qs.stringify(
+                { a: 'b', c: ['d', 'e=f'], f: [['g'], ['h']] },
+                { encodeValuesOnly: true, arrayFormat: 'brackets' }
+            ),
+            'a=b&c[]=d&c[]=e%3Df&f[][]=g&f[][]=h',
+            'encodeValuesOnly + brackets'
+        );
+        st.equal(
+            qs.stringify(
+                { a: 'b', c: ['d', 'e=f'], f: [['g'], ['h']] },
+                { encodeValuesOnly: true, arrayFormat: 'repeat' }
+            ),
+            'a=b&c=d&c=e%3Df&f=g&f=h',
+            'encodeValuesOnly + repeat'
+        );
+
+        st.equal(
+            qs.stringify(
+                { a: 'b', c: ['d', 'e'], f: [['g'], ['h']] },
+                { arrayFormat: 'indices' }
+            ),
+            'a=b&c%5B0%5D=d&c%5B1%5D=e&f%5B0%5D%5B0%5D=g&f%5B1%5D%5B0%5D=h',
+            'no encodeValuesOnly + indices'
+        );
+        st.equal(
+            qs.stringify(
+                { a: 'b', c: ['d', 'e'], f: [['g'], ['h']] },
+                { arrayFormat: 'brackets' }
+            ),
+            'a=b&c%5B%5D=d&c%5B%5D=e&f%5B%5D%5B%5D=g&f%5B%5D%5B%5D=h',
+            'no encodeValuesOnly + brackets'
+        );
+        st.equal(
+            qs.stringify(
+                { a: 'b', c: ['d', 'e'], f: [['g'], ['h']] },
+                { arrayFormat: 'repeat' }
+            ),
+            'a=b&c=d&c=e&f=g&f=h',
+            'no encodeValuesOnly + repeat'
+        );
+
+        st.end();
+    });
+
+    t.test('encodeValuesOnly - strictNullHandling', function (st) {
+        st.equal(
+            qs.stringify(
+                { a: { b: null } },
+                { encodeValuesOnly: true, strictNullHandling: true }
+            ),
+            'a[b]'
+        );
+        st.end();
+    });
+
+    t.test('throws if an invalid charset is specified', function (st) {
+        st['throws'](function () {
+            qs.stringify({ a: 'b' }, { charset: 'foobar' });
+        }, new TypeError('The charset option must be either utf-8, iso-8859-1, or undefined'));
+        st.end();
+    });
+
+    t.test('respects a charset of iso-8859-1', function (st) {
+        st.equal(qs.stringify({ æ: 'æ' }, { charset: 'iso-8859-1' }), '%E6=%E6');
+        st.end();
+    });
+
+    t.test('encodes unrepresentable chars as numeric entities in iso-8859-1 mode', function (st) {
+        st.equal(qs.stringify({ a: '☺' }, { charset: 'iso-8859-1' }), 'a=%26%239786%3B');
+        st.end();
+    });
+
+    t.test('respects an explicit charset of utf-8 (the default)', function (st) {
+        st.equal(qs.stringify({ a: 'æ' }, { charset: 'utf-8' }), 'a=%C3%A6');
+        st.end();
+    });
+
+    t.test('`charsetSentinel` option', function (st) {
+        st.equal(
+            qs.stringify({ a: 'æ' }, { charsetSentinel: true, charset: 'utf-8' }),
+            'utf8=%E2%9C%93&a=%C3%A6',
+            'adds the right sentinel when instructed to and the charset is utf-8'
+        );
+
+        st.equal(
+            qs.stringify({ a: 'æ' }, { charsetSentinel: true, charset: 'iso-8859-1' }),
+            'utf8=%26%2310003%3B&a=%E6',
+            'adds the right sentinel when instructed to and the charset is iso-8859-1'
+        );
+
+        st.end();
+    });
+
+    t.test('does not mutate the options argument', function (st) {
+        var options = {};
+        qs.stringify({}, options);
+        st.deepEqual(options, {});
+        st.end();
+    });
+
+    t.test('strictNullHandling works with custom filter', function (st) {
+        var filter = function (prefix, value) {
+            return value;
+        };
+
+        var options = { strictNullHandling: true, filter: filter };
+        st.equal(qs.stringify({ key: null }, options), 'key');
+        st.end();
+    });
+
+    t.test('strictNullHandling works with null serializeDate', function (st) {
+        var serializeDate = function () {
+            return null;
+        };
+        var options = { strictNullHandling: true, serializeDate: serializeDate };
+        var date = new Date();
+        st.equal(qs.stringify({ key: date }, options), 'key');
+        st.end();
+    });
+
+    t.test('allows for encoding keys and values differently', function (st) {
+        var encoder = function (str, defaultEncoder, charset, type) {
+            if (type === 'key') {
+                return defaultEncoder(str, defaultEncoder, charset, type).toLowerCase();
+            }
+            if (type === 'value') {
+                return defaultEncoder(str, defaultEncoder, charset, type).toUpperCase();
+            }
+            throw 'this should never happen! type: ' + type;
+        };
+
+        st.deepEqual(qs.stringify({ KeY: 'vAlUe' }, { encoder: encoder }), 'key=VALUE');
+        st.end();
+    });
+
+    t.test('objects inside arrays', function (st) {
+        var obj = { a: { b: { c: 'd', e: 'f' } } };
+        var withArray = { a: { b: [{ c: 'd', e: 'f' }] } };
+
+        st.equal(qs.stringify(obj, { encode: false }), 'a[b][c]=d&a[b][e]=f', 'no array, no arrayFormat');
+        st.equal(qs.stringify(obj, { encode: false, arrayFormat: 'brackets' }), 'a[b][c]=d&a[b][e]=f', 'no array, bracket');
+        st.equal(qs.stringify(obj, { encode: false, arrayFormat: 'indices' }), 'a[b][c]=d&a[b][e]=f', 'no array, indices');
+        st.equal(qs.stringify(obj, { encode: false, arrayFormat: 'repeat' }), 'a[b][c]=d&a[b][e]=f', 'no array, repeat');
+        st.equal(qs.stringify(obj, { encode: false, arrayFormat: 'comma' }), 'a[b][c]=d&a[b][e]=f', 'no array, comma');
+
+        st.equal(qs.stringify(withArray, { encode: false }), 'a[b][0][c]=d&a[b][0][e]=f', 'array, no arrayFormat');
+        st.equal(qs.stringify(withArray, { encode: false, arrayFormat: 'brackets' }), 'a[b][][c]=d&a[b][][e]=f', 'array, bracket');
+        st.equal(qs.stringify(withArray, { encode: false, arrayFormat: 'indices' }), 'a[b][0][c]=d&a[b][0][e]=f', 'array, indices');
+        st.equal(qs.stringify(withArray, { encode: false, arrayFormat: 'repeat' }), 'a[b][c]=d&a[b][e]=f', 'array, repeat');
+        st.equal(
+            qs.stringify(withArray, { encode: false, arrayFormat: 'comma' }),
+            '???',
+            'array, comma',
+            { skip: 'TODO: figure out what this should do' }
+        );
+
+        st.end();
+    });
+
+    t.test('stringifies sparse arrays', function (st) {
+        /* eslint no-sparse-arrays: 0 */
+        st.equal(qs.stringify({ a: [, '2', , , '1'] }, { encodeValuesOnly: true, arrayFormat: 'indices' }), 'a[1]=2&a[4]=1');
+        st.equal(qs.stringify({ a: [, '2', , , '1'] }, { encodeValuesOnly: true, arrayFormat: 'brackets' }), 'a[]=2&a[]=1');
+        st.equal(qs.stringify({ a: [, '2', , , '1'] }, { encodeValuesOnly: true, arrayFormat: 'repeat' }), 'a=2&a=1');
+
+        st.equal(qs.stringify({ a: [, { b: [, , { c: '1' }] }] }, { encodeValuesOnly: true, arrayFormat: 'indices' }), 'a[1][b][2][c]=1');
+        st.equal(qs.stringify({ a: [, { b: [, , { c: '1' }] }] }, { encodeValuesOnly: true, arrayFormat: 'brackets' }), 'a[][b][][c]=1');
+        st.equal(qs.stringify({ a: [, { b: [, , { c: '1' }] }] }, { encodeValuesOnly: true, arrayFormat: 'repeat' }), 'a[b][c]=1');
+
+        st.equal(qs.stringify({ a: [, [, , [, , , { c: '1' }]]] }, { encodeValuesOnly: true, arrayFormat: 'indices' }), 'a[1][2][3][c]=1');
+        st.equal(qs.stringify({ a: [, [, , [, , , { c: '1' }]]] }, { encodeValuesOnly: true, arrayFormat: 'brackets' }), 'a[][][][c]=1');
+        st.equal(qs.stringify({ a: [, [, , [, , , { c: '1' }]]] }, { encodeValuesOnly: true, arrayFormat: 'repeat' }), 'a[c]=1');
+
+        st.equal(qs.stringify({ a: [, [, , [, , , { c: [, '1'] }]]] }, { encodeValuesOnly: true, arrayFormat: 'indices' }), 'a[1][2][3][c][1]=1');
+        st.equal(qs.stringify({ a: [, [, , [, , , { c: [, '1'] }]]] }, { encodeValuesOnly: true, arrayFormat: 'brackets' }), 'a[][][][c][]=1');
+        st.equal(qs.stringify({ a: [, [, , [, , , { c: [, '1'] }]]] }, { encodeValuesOnly: true, arrayFormat: 'repeat' }), 'a[c]=1');
+
+        st.end();
+    });
+
+    t.test('encodes a very long string', function (st) {
+        var chars = [];
+        var expected = [];
+        for (var i = 0; i < 5e3; i++) {
+            chars.push(' ' + i);
+
+            expected.push('%20' + i);
+        }
+
+        var obj = {
+            foo: chars.join('')
+        };
+
+        st.equal(
+            qs.stringify(obj, { arrayFormat: 'brackets', charset: 'utf-8' }),
+            'foo=' + expected.join('')
+        );
+
+        st.end();
+    });
+
+    t.end();
+});
+
+test('stringifies empty keys', function (t) {
+    emptyTestCases.forEach(function (testCase) {
+        t.test('stringifies an object with empty string key with ' + testCase.input, function (st) {
+            st.deepEqual(
+                qs.stringify(testCase.withEmptyKeys, { encode: false, arrayFormat: 'indices' }),
+                testCase.stringifyOutput.indices,
+                'test case: ' + testCase.input + ', indices'
+            );
+            st.deepEqual(
+                qs.stringify(testCase.withEmptyKeys, { encode: false, arrayFormat: 'brackets' }),
+                testCase.stringifyOutput.brackets,
+                'test case: ' + testCase.input + ', brackets'
+            );
+            st.deepEqual(
+                qs.stringify(testCase.withEmptyKeys, { encode: false, arrayFormat: 'repeat' }),
+                testCase.stringifyOutput.repeat,
+                'test case: ' + testCase.input + ', repeat'
+            );
+
+            st.end();
+        });
+    });
+
+    t.test('edge case with object/arrays', function (st) {
+        st.deepEqual(qs.stringify({ '': { '': [2, 3] } }, { encode: false }), '[][0]=2&[][1]=3');
+        st.deepEqual(qs.stringify({ '': { '': [2, 3], a: 2 } }, { encode: false }), '[][0]=2&[][1]=3&[a]=2');
+        st.deepEqual(qs.stringify({ '': { '': [2, 3] } }, { encode: false, arrayFormat: 'indices' }), '[][0]=2&[][1]=3');
+        st.deepEqual(qs.stringify({ '': { '': [2, 3], a: 2 } }, { encode: false, arrayFormat: 'indices' }), '[][0]=2&[][1]=3&[a]=2');
+
+        st.end();
+    });
+
+    t.test('stringifies non-string keys', function (st) {
+        var actual = qs.stringify({ a: 'b', 'false': {} }, {
+            filter: ['a', false, null],
+            allowDots: true,
+            encodeDotInKeys: true
+        });
+
+        st.equal(actual, 'a=b', 'stringifies correctly');
+
+        st.end();
+    });
+});
diff --git a/backend/node_modules/qs/test/utils.js b/backend/node_modules/qs/test/utils.js
new file mode 100644
index 0000000..3933516
--- /dev/null
+++ b/backend/node_modules/qs/test/utils.js
@@ -0,0 +1,262 @@
+'use strict';
+
+var test = require('tape');
+var inspect = require('object-inspect');
+var SaferBuffer = require('safer-buffer').Buffer;
+var forEach = require('for-each');
+var v = require('es-value-fixtures');
+
+var utils = require('../lib/utils');
+
+test('merge()', function (t) {
+    t.deepEqual(utils.merge(null, true), [null, true], 'merges true into null');
+
+    t.deepEqual(utils.merge(null, [42]), [null, 42], 'merges null into an array');
+
+    t.deepEqual(utils.merge({ a: 'b' }, { a: 'c' }), { a: ['b', 'c'] }, 'merges two objects with the same key');
+
+    var oneMerged = utils.merge({ foo: 'bar' }, { foo: { first: '123' } });
+    t.deepEqual(oneMerged, { foo: ['bar', { first: '123' }] }, 'merges a standalone and an object into an array');
+
+    var twoMerged = utils.merge({ foo: ['bar', { first: '123' }] }, { foo: { second: '456' } });
+    t.deepEqual(twoMerged, { foo: { 0: 'bar', 1: { first: '123' }, second: '456' } }, 'merges a standalone and two objects into an array');
+
+    var sandwiched = utils.merge({ foo: ['bar', { first: '123', second: '456' }] }, { foo: 'baz' });
+    t.deepEqual(sandwiched, { foo: ['bar', { first: '123', second: '456' }, 'baz'] }, 'merges an object sandwiched by two standalones into an array');
+
+    var nestedArrays = utils.merge({ foo: ['baz'] }, { foo: ['bar', 'xyzzy'] });
+    t.deepEqual(nestedArrays, { foo: ['baz', 'bar', 'xyzzy'] });
+
+    var noOptionsNonObjectSource = utils.merge({ foo: 'baz' }, 'bar');
+    t.deepEqual(noOptionsNonObjectSource, { foo: 'baz', bar: true });
+
+    var func = function f() {};
+    t.deepEqual(
+        utils.merge(func, { foo: 'bar' }),
+        [func, { foo: 'bar' }],
+        'functions can not be merged into'
+    );
+
+    func.bar = 'baz';
+    t.deepEqual(
+        utils.merge({ foo: 'bar' }, func),
+        { foo: 'bar', bar: 'baz' },
+        'functions can be merge sources'
+    );
+
+    t.test(
+        'avoids invoking array setters unnecessarily',
+        { skip: typeof Object.defineProperty !== 'function' },
+        function (st) {
+            var setCount = 0;
+            var getCount = 0;
+            var observed = [];
+            Object.defineProperty(observed, 0, {
+                get: function () {
+                    getCount += 1;
+                    return { bar: 'baz' };
+                },
+                set: function () { setCount += 1; }
+            });
+            utils.merge(observed, [null]);
+            st.equal(setCount, 0);
+            st.equal(getCount, 1);
+            observed[0] = observed[0]; // eslint-disable-line no-self-assign
+            st.equal(setCount, 1);
+            st.equal(getCount, 2);
+            st.end();
+        }
+    );
+
+    t.end();
+});
+
+test('assign()', function (t) {
+    var target = { a: 1, b: 2 };
+    var source = { b: 3, c: 4 };
+    var result = utils.assign(target, source);
+
+    t.equal(result, target, 'returns the target');
+    t.deepEqual(target, { a: 1, b: 3, c: 4 }, 'target and source are merged');
+    t.deepEqual(source, { b: 3, c: 4 }, 'source is untouched');
+
+    t.end();
+});
+
+test('combine()', function (t) {
+    t.test('both arrays', function (st) {
+        var a = [1];
+        var b = [2];
+        var combined = utils.combine(a, b);
+
+        st.deepEqual(a, [1], 'a is not mutated');
+        st.deepEqual(b, [2], 'b is not mutated');
+        st.notEqual(a, combined, 'a !== combined');
+        st.notEqual(b, combined, 'b !== combined');
+        st.deepEqual(combined, [1, 2], 'combined is a + b');
+
+        st.end();
+    });
+
+    t.test('one array, one non-array', function (st) {
+        var aN = 1;
+        var a = [aN];
+        var bN = 2;
+        var b = [bN];
+
+        var combinedAnB = utils.combine(aN, b);
+        st.deepEqual(b, [bN], 'b is not mutated');
+        st.notEqual(aN, combinedAnB, 'aN + b !== aN');
+        st.notEqual(a, combinedAnB, 'aN + b !== a');
+        st.notEqual(bN, combinedAnB, 'aN + b !== bN');
+        st.notEqual(b, combinedAnB, 'aN + b !== b');
+        st.deepEqual([1, 2], combinedAnB, 'first argument is array-wrapped when not an array');
+
+        var combinedABn = utils.combine(a, bN);
+        st.deepEqual(a, [aN], 'a is not mutated');
+        st.notEqual(aN, combinedABn, 'a + bN !== aN');
+        st.notEqual(a, combinedABn, 'a + bN !== a');
+        st.notEqual(bN, combinedABn, 'a + bN !== bN');
+        st.notEqual(b, combinedABn, 'a + bN !== b');
+        st.deepEqual([1, 2], combinedABn, 'second argument is array-wrapped when not an array');
+
+        st.end();
+    });
+
+    t.test('neither is an array', function (st) {
+        var combined = utils.combine(1, 2);
+        st.notEqual(1, combined, '1 + 2 !== 1');
+        st.notEqual(2, combined, '1 + 2 !== 2');
+        st.deepEqual([1, 2], combined, 'both arguments are array-wrapped when not an array');
+
+        st.end();
+    });
+
+    t.end();
+});
+
+test('decode', function (t) {
+    t.equal(
+        utils.decode('a+b'),
+        'a b',
+        'decodes + to space'
+    );
+
+    t.equal(
+        utils.decode('name%2Eobj'),
+        'name.obj',
+        'decodes a string'
+    );
+    t.equal(
+        utils.decode('name%2Eobj%2Efoo', null, 'iso-8859-1'),
+        'name.obj.foo',
+        'decodes a string in iso-8859-1'
+    );
+
+    t.end();
+});
+
+test('encode', function (t) {
+    forEach(v.nullPrimitives, function (nullish) {
+        t['throws'](
+            function () { utils.encode(nullish); },
+            TypeError,
+            inspect(nullish) + ' is not a string'
+        );
+    });
+
+    t.equal(utils.encode(''), '', 'empty string returns itself');
+    t.deepEqual(utils.encode([]), [], 'empty array returns itself');
+    t.deepEqual(utils.encode({ length: 0 }), { length: 0 }, 'empty arraylike returns itself');
+
+    t.test('symbols', { skip: !v.hasSymbols }, function (st) {
+        st.equal(utils.encode(Symbol('x')), 'Symbol%28x%29', 'symbol is encoded');
+
+        st.end();
+    });
+
+    t.equal(
+        utils.encode('(abc)'),
+        '%28abc%29',
+        'encodes parentheses'
+    );
+    t.equal(
+        utils.encode({ toString: function () { return '(abc)'; } }),
+        '%28abc%29',
+        'toStrings and encodes parentheses'
+    );
+
+    t.equal(
+        utils.encode('abc 123 💩', null, 'iso-8859-1'),
+        'abc%20123%20%26%2355357%3B%26%2356489%3B',
+        'encodes in iso-8859-1'
+    );
+
+    var longString = '';
+    var expectedString = '';
+    for (var i = 0; i < 1500; i++) {
+        longString += ' ';
+        expectedString += '%20';
+    }
+
+    t.equal(
+        utils.encode(longString),
+        expectedString,
+        'encodes a long string'
+    );
+
+    t.equal(
+        utils.encode('\x28\x29'),
+        '%28%29',
+        'encodes parens normally'
+    );
+    t.equal(
+        utils.encode('\x28\x29', null, null, null, 'RFC1738'),
+        '()',
+        'does not encode parens in RFC1738'
+    );
+
+    // todo RFC1738 format
+
+    t.equal(
+        utils.encode('Āက豈'),
+        '%C4%80%E1%80%80%EF%A4%80',
+        'encodes multibyte chars'
+    );
+
+    t.equal(
+        utils.encode('\uD83D \uDCA9'),
+        '%F0%9F%90%A0%F0%BA%90%80',
+        'encodes lone surrogates'
+    );
+
+    t.end();
+});
+
+test('isBuffer()', function (t) {
+    forEach([null, undefined, true, false, '', 'abc', 42, 0, NaN, {}, [], function () {}, /a/g], function (x) {
+        t.equal(utils.isBuffer(x), false, inspect(x) + ' is not a buffer');
+    });
+
+    var fakeBuffer = { constructor: Buffer };
+    t.equal(utils.isBuffer(fakeBuffer), false, 'fake buffer is not a buffer');
+
+    var saferBuffer = SaferBuffer.from('abc');
+    t.equal(utils.isBuffer(saferBuffer), true, 'SaferBuffer instance is a buffer');
+
+    var buffer = Buffer.from && Buffer.alloc ? Buffer.from('abc') : new Buffer('abc');
+    t.equal(utils.isBuffer(buffer), true, 'real Buffer instance is a buffer');
+    t.end();
+});
+
+test('isRegExp()', function (t) {
+    t.equal(utils.isRegExp(/a/g), true, 'RegExp is a RegExp');
+    t.equal(utils.isRegExp(new RegExp('a', 'g')), true, 'new RegExp is a RegExp');
+    t.equal(utils.isRegExp(new Date()), false, 'Date is not a RegExp');
+
+    forEach(v.primitives, function (primitive) {
+        t.equal(utils.isRegExp(primitive), false, inspect(primitive) + ' is not a RegExp');
+    });
+
+    t.end();
+});
diff --git a/backend/node_modules/range-parser/HISTORY.md b/backend/node_modules/range-parser/HISTORY.md
new file mode 100644
index 0000000..70a973d
--- /dev/null
+++ b/backend/node_modules/range-parser/HISTORY.md
@@ -0,0 +1,56 @@
+1.2.1 / 2019-05-10
+==================
+
+  * Improve error when `str` is not a string
+
+1.2.0 / 2016-06-01
+==================
+
+  * Add `combine` option to combine overlapping ranges
+
+1.1.0 / 2016-05-13
+==================
+
+  * Fix incorrectly returning -1 when there is at least one valid range
+  * perf: remove internal function
+
+1.0.3 / 2015-10-29
+==================
+
+  * perf: enable strict mode
+
+1.0.2 / 2014-09-08
+==================
+
+  * Support Node.js 0.6
+
+1.0.1 / 2014-09-07
+==================
+
+  * Move repository to jshttp
+
+1.0.0 / 2013-12-11
+==================
+
+  * Add repository to package.json
+  * Add MIT license
+
+0.0.4 / 2012-06-17
+==================
+
+  * Change ret -1 for unsatisfiable and -2 when invalid
+
+0.0.3 / 2012-06-17
+==================
+
+  * Fix last-byte-pos default to len - 1
+
+0.0.2 / 2012-06-14
+==================
+
+  * Add `.type`
+
+0.0.1 / 2012-06-11
+==================
+
+  * Initial release
diff --git a/backend/node_modules/range-parser/LICENSE b/backend/node_modules/range-parser/LICENSE
new file mode 100644
index 0000000..3599954
--- /dev/null
+++ b/backend/node_modules/range-parser/LICENSE
@@ -0,0 +1,23 @@
+(The MIT License)
+
+Copyright (c) 2012-2014 TJ Holowaychuk <tj@vision-media.ca>
+Copyright (c) 2015-2016 Douglas Christopher Wilson <doug@somethingdoug.com
+
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of this software and associated documentation files (the
+'Software'), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sublicense, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to
+the following conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
diff --git a/backend/node_modules/range-parser/README.md b/backend/node_modules/range-parser/README.md
new file mode 100644
index 0000000..c247e82
--- /dev/null
+++ b/backend/node_modules/range-parser/README.md
@@ -0,0 +1,84 @@
+# range-parser
+
+[![NPM Version][npm-version-image]][npm-url]
+[![NPM Downloads][npm-downloads-image]][npm-url]
+[![Node.js Version][node-image]][node-url]
+[![Build Status][travis-image]][travis-url]
+[![Test Coverage][coveralls-image]][coveralls-url]
+
+Range header field parser.
+
+## Installation
+
+This is a [Node.js](https://nodejs.org/en/) module available through the
+[npm registry](https://www.npmjs.com/). Installation is done using the
+[`npm install` command](https://docs.npmjs.com/getting-started/installing-npm-packages-locally):
+
+```sh
+$ npm install range-parser
+```
+
+## API
+
+<!-- eslint-disable no-unused-vars -->
+
+```js
+var parseRange = require('range-parser')
+```
+
+### parseRange(size, header, options)
+
+Parse the given `header` string where `size` is the maximum size of the resource.
+An array of ranges will be returned or negative numbers indicating an error parsing.
+
+  * `-2` signals a malformed header string
+  * `-1` signals an unsatisfiable range
+
+<!-- eslint-disable no-undef -->
+
+```js
+// parse header from request
+var range = parseRange(size, req.headers.range)
+
+// the type of the range
+if (range.type === 'bytes') {
+  // the ranges
+  range.forEach(function (r) {
+    // do something with r.start and r.end
+  })
+}
+```
+
+#### Options
+
+These properties are accepted in the options object.
+
+##### combine
+
+Specifies if overlapping & adjacent ranges should be combined, defaults to `false`.
+When `true`, ranges will be combined and returned as if they were specified that
+way in the header.
+
+<!-- eslint-disable no-undef -->
+
+```js
+parseRange(100, 'bytes=50-55,0-10,5-10,56-60', { combine: true })
+// => [
+//      { start: 0,  end: 10 },
+//      { start: 50, end: 60 }
+//    ]
+```
+
+## License
+
+[MIT](LICENSE)
+
+[coveralls-image]: https://badgen.net/coveralls/c/github/jshttp/range-parser/master
+[coveralls-url]: https://coveralls.io/r/jshttp/range-parser?branch=master
+[node-image]: https://badgen.net/npm/node/range-parser
+[node-url]: https://nodejs.org/en/download
+[npm-downloads-image]: https://badgen.net/npm/dm/range-parser
+[npm-url]: https://npmjs.org/package/range-parser
+[npm-version-image]: https://badgen.net/npm/v/range-parser
+[travis-image]: https://badgen.net/travis/jshttp/range-parser/master
+[travis-url]: https://travis-ci.org/jshttp/range-parser
diff --git a/backend/node_modules/range-parser/index.js b/backend/node_modules/range-parser/index.js
new file mode 100644
index 0000000..b7dc5c0
--- /dev/null
+++ b/backend/node_modules/range-parser/index.js
@@ -0,0 +1,162 @@
+/*!
+ * range-parser
+ * Copyright(c) 2012-2014 TJ Holowaychuk
+ * Copyright(c) 2015-2016 Douglas Christopher Wilson
+ * MIT Licensed
+ */
+
+'use strict'
+
+/**
+ * Module exports.
+ * @public
+ */
+
+module.exports = rangeParser
+
+/**
+ * Parse "Range" header `str` relative to the given file `size`.
+ *
+ * @param {Number} size
+ * @param {String} str
+ * @param {Object} [options]
+ * @return {Array}
+ * @public
+ */
+
+function rangeParser (size, str, options) {
+  if (typeof str !== 'string') {
+    throw new TypeError('argument str must be a string')
+  }
+
+  var index = str.indexOf('=')
+
+  if (index === -1) {
+    return -2
+  }
+
+  // split the range string
+  var arr = str.slice(index + 1).split(',')
+  var ranges = []
+
+  // add ranges type
+  ranges.type = str.slice(0, index)
+
+  // parse all ranges
+  for (var i = 0; i < arr.length; i++) {
+    var range = arr[i].split('-')
+    var start = parseInt(range[0], 10)
+    var end = parseInt(range[1], 10)
+
+    // -nnn
+    if (isNaN(start)) {
+      start = size - end
+      end = size - 1
+    // nnn-
+    } else if (isNaN(end)) {
+      end = size - 1
+    }
+
+    // limit last-byte-pos to current length
+    if (end > size - 1) {
+      end = size - 1
+    }
+
+    // invalid or unsatisifiable
+    if (isNaN(start) || isNaN(end) || start > end || start < 0) {
+      continue
+    }
+
+    // add range
+    ranges.push({
+      start: start,
+      end: end
+    })
+  }
+
+  if (ranges.length < 1) {
+    // unsatisifiable
+    return -1
+  }
+
+  return options && options.combine
+    ? combineRanges(ranges)
+    : ranges
+}
+
+/**
+ * Combine overlapping & adjacent ranges.
+ * @private
+ */
+
+function combineRanges (ranges) {
+  var ordered = ranges.map(mapWithIndex).sort(sortByRangeStart)
+
+  for (var j = 0, i = 1; i < ordered.length; i++) {
+    var range = ordered[i]
+    var current = ordered[j]
+
+    if (range.start > current.end + 1) {
+      // next range
+      ordered[++j] = range
+    } else if (range.end > current.end) {
+      // extend range
+      current.end = range.end
+      current.index = Math.min(current.index, range.index)
+    }
+  }
+
+  // trim ordered array
+  ordered.length = j + 1
+
+  // generate combined range
+  var combined = ordered.sort(sortByRangeIndex).map(mapWithoutIndex)
+
+  // copy ranges type
+  combined.type = ranges.type
+
+  return combined
+}
+
+/**
+ * Map function to add index value to ranges.
+ * @private
+ */
+
+function mapWithIndex (range, index) {
+  return {
+    start: range.start,
+    end: range.end,
+    index: index
+  }
+}
+
+/**
+ * Map function to remove index value from ranges.
+ * @private
+ */
+
+function mapWithoutIndex (range) {
+  return {
+    start: range.start,
+    end: range.end
+  }
+}
+
+/**
+ * Sort function to sort ranges by index.
+ * @private
+ */
+
+function sortByRangeIndex (a, b) {
+  return a.index - b.index
+}
+
+/**
+ * Sort function to sort ranges by start position.
+ * @private
+ */
+
+function sortByRangeStart (a, b) {
+  return a.start - b.start
+}
diff --git a/backend/node_modules/range-parser/package.json b/backend/node_modules/range-parser/package.json
new file mode 100644
index 0000000..abea6d8
--- /dev/null
+++ b/backend/node_modules/range-parser/package.json
@@ -0,0 +1,44 @@
+{
+  "name": "range-parser",
+  "author": "TJ Holowaychuk <tj@vision-media.ca> (http://tjholowaychuk.com)",
+  "description": "Range header field string parser",
+  "version": "1.2.1",
+  "contributors": [
+    "Douglas Christopher Wilson <doug@somethingdoug.com>",
+    "James Wyatt Cready <wyatt.cready@lanetix.com>",
+    "Jonathan Ong <me@jongleberry.com> (http://jongleberry.com)"
+  ],
+  "license": "MIT",
+  "keywords": [
+    "range",
+    "parser",
+    "http"
+  ],
+  "repository": "jshttp/range-parser",
+  "devDependencies": {
+    "deep-equal": "1.0.1",
+    "eslint": "5.16.0",
+    "eslint-config-standard": "12.0.0",
+    "eslint-plugin-markdown": "1.0.0",
+    "eslint-plugin-import": "2.17.2",
+    "eslint-plugin-node": "8.0.1",
+    "eslint-plugin-promise": "4.1.1",
+    "eslint-plugin-standard": "4.0.0",
+    "mocha": "6.1.4",
+    "nyc": "14.1.1"
+  },
+  "files": [
+    "HISTORY.md",
+    "LICENSE",
+    "index.js"
+  ],
+  "engines": {
+    "node": ">= 0.6"
+  },
+  "scripts": {
+    "lint": "eslint --plugin markdown --ext js,md .",
+    "test": "mocha --reporter spec",
+    "test-cov": "nyc --reporter=html --reporter=text npm test",
+    "test-travis": "nyc --reporter=text npm test"
+  }
+}
diff --git a/backend/node_modules/raw-body/HISTORY.md b/backend/node_modules/raw-body/HISTORY.md
new file mode 100644
index 0000000..1da8fb8
--- /dev/null
+++ b/backend/node_modules/raw-body/HISTORY.md
@@ -0,0 +1,333 @@
+3.0.1 / 2025-09-03
+==================
+
+  * deps: iconv-lite@0.7.0
+    - Avoid false positives in encodingExists by using objects without a prototype
+    - Remove compatibility check for StringDecoder.end method
+  * Fix the engines field to reflect support for Node >= 0.10
+
+3.0.0 / 2024-07-25
+==================
+
+  * deps: iconv-lite@0.6.3
+    - Fix HKSCS encoding to prefer Big5 codes
+    - Fix minor issue in UTF-32 decoder's endianness detection code
+    - Update 'gb18030' encoding to :2005 edition
+
+3.0.0-beta.1 / 2023-02-21
+=========================
+
+  * Change TypeScript argument to `NodeJS.ReadableStream` interface
+  * Drop support for Node.js 0.8
+  * deps: iconv-lite@0.5.2
+    - Add encoding cp720
+    - Add encoding UTF-32
+
+2.5.2 / 2023-02-21
+==================
+
+  * Fix error message for non-stream argument
+
+2.5.1 / 2022-02-28
+==================
+
+  * Fix error on early async hooks implementations
+
+2.5.0 / 2022-02-21
+==================
+
+  * Prevent loss of async hooks context
+  * Prevent hanging when stream is not readable
+  * deps: http-errors@2.0.0
+    - deps: depd@2.0.0
+    - deps: statuses@2.0.1
+
+2.4.3 / 2022-02-14
+==================
+
+  * deps: bytes@3.1.2
+
+2.4.2 / 2021-11-16
+==================
+
+  * deps: bytes@3.1.1
+  * deps: http-errors@1.8.1
+    - deps: setprototypeof@1.2.0
+    - deps: toidentifier@1.0.1
+
+2.4.1 / 2019-06-25
+==================
+
+  * deps: http-errors@1.7.3
+    - deps: inherits@2.0.4
+
+2.4.0 / 2019-04-17
+==================
+
+  * deps: bytes@3.1.0
+    - Add petabyte (`pb`) support
+  * deps: http-errors@1.7.2
+    - Set constructor name when possible
+    - deps: setprototypeof@1.1.1
+    - deps: statuses@'>= 1.5.0 < 2'
+  * deps: iconv-lite@0.4.24
+    - Added encoding MIK
+
+2.3.3 / 2018-05-08
+==================
+
+  * deps: http-errors@1.6.3
+    - deps: depd@~1.1.2
+    - deps: setprototypeof@1.1.0
+    - deps: statuses@'>= 1.3.1 < 2'
+  * deps: iconv-lite@0.4.23
+    - Fix loading encoding with year appended
+    - Fix deprecation warnings on Node.js 10+
+
+2.3.2 / 2017-09-09
+==================
+
+  * deps: iconv-lite@0.4.19
+    - Fix ISO-8859-1 regression
+    - Update Windows-1255
+
+2.3.1 / 2017-09-07
+==================
+
+  * deps: bytes@3.0.0
+  * deps: http-errors@1.6.2
+    - deps: depd@1.1.1
+  * perf: skip buffer decoding on overage chunk
+
+2.3.0 / 2017-08-04
+==================
+
+  * Add TypeScript definitions
+  * Use `http-errors` for standard emitted errors
+  * deps: bytes@2.5.0
+  * deps: iconv-lite@0.4.18
+    - Add support for React Native
+    - Add a warning if not loaded as utf-8
+    - Fix CESU-8 decoding in Node.js 8
+    - Improve speed of ISO-8859-1 encoding
+
+2.2.0 / 2017-01-02
+==================
+
+  * deps: iconv-lite@0.4.15
+    - Added encoding MS-31J
+    - Added encoding MS-932
+    - Added encoding MS-936
+    - Added encoding MS-949
+    - Added encoding MS-950
+    - Fix GBK/GB18030 handling of Euro character
+
+2.1.7 / 2016-06-19
+==================
+
+  * deps: bytes@2.4.0
+  * perf: remove double-cleanup on happy path
+
+2.1.6 / 2016-03-07
+==================
+
+  * deps: bytes@2.3.0
+    - Drop partial bytes on all parsed units
+    - Fix parsing byte string that looks like hex
+
+2.1.5 / 2015-11-30
+==================
+
+  * deps: bytes@2.2.0
+  * deps: iconv-lite@0.4.13
+
+2.1.4 / 2015-09-27
+==================
+
+  * Fix masking critical errors from `iconv-lite`
+  * deps: iconv-lite@0.4.12
+    - Fix CESU-8 decoding in Node.js 4.x
+
+2.1.3 / 2015-09-12
+==================
+
+  * Fix sync callback when attaching data listener causes sync read
+    - Node.js 0.10 compatibility issue
+
+2.1.2 / 2015-07-05
+==================
+
+  * Fix error stack traces to skip `makeError`
+  * deps: iconv-lite@0.4.11
+    - Add encoding CESU-8
+
+2.1.1 / 2015-06-14
+==================
+
+  * Use `unpipe` module for unpiping requests
+
+2.1.0 / 2015-05-28
+==================
+
+  * deps: iconv-lite@0.4.10
+    - Improved UTF-16 endianness detection
+    - Leading BOM is now removed when decoding
+    - The encoding UTF-16 without BOM now defaults to UTF-16LE when detection fails
+
+2.0.2 / 2015-05-21
+==================
+
+  * deps: bytes@2.1.0
+    - Slight optimizations
+
+2.0.1 / 2015-05-10
+==================
+
+  * Fix a false-positive when unpiping in Node.js 0.8
+
+2.0.0 / 2015-05-08
+==================
+
+  * Return a promise without callback instead of thunk
+  * deps: bytes@2.0.1
+    - units no longer case sensitive when parsing
+
+1.3.4 / 2015-04-15
+==================
+
+  * Fix hanging callback if request aborts during read
+  * deps: iconv-lite@0.4.8
+    - Add encoding alias UNICODE-1-1-UTF-7
+
+1.3.3 / 2015-02-08
+==================
+
+  * deps: iconv-lite@0.4.7
+    - Gracefully support enumerables on `Object.prototype`
+
+1.3.2 / 2015-01-20
+==================
+
+  * deps: iconv-lite@0.4.6
+    - Fix rare aliases of single-byte encodings
+
+1.3.1 / 2014-11-21
+==================
+
+  * deps: iconv-lite@0.4.5
+    - Fix Windows-31J and X-SJIS encoding support
+
+1.3.0 / 2014-07-20
+==================
+
+  * Fully unpipe the stream on error
+    - Fixes `Cannot switch to old mode now` error on Node.js 0.10+
+
+1.2.3 / 2014-07-20
+==================
+
+  * deps: iconv-lite@0.4.4
+    - Added encoding UTF-7
+
+1.2.2 / 2014-06-19
+==================
+
+  * Send invalid encoding error to callback
+
+1.2.1 / 2014-06-15
+==================
+
+  * deps: iconv-lite@0.4.3
+    - Added encodings UTF-16BE and UTF-16 with BOM
+
+1.2.0 / 2014-06-13
+==================
+
+  * Passing string as `options` interpreted as encoding
+  * Support all encodings from `iconv-lite`
+
+1.1.7 / 2014-06-12
+==================
+
+  * use `string_decoder` module from npm
+
+1.1.6 / 2014-05-27
+==================
+
+  * check encoding for old streams1
+  * support node.js < 0.10.6
+
+1.1.5 / 2014-05-14
+==================
+
+  * bump bytes
+
+1.1.4 / 2014-04-19
+==================
+
+  * allow true as an option
+  * bump bytes
+
+1.1.3 / 2014-03-02
+==================
+
+  * fix case when length=null
+
+1.1.2 / 2013-12-01
+==================
+
+  * be less strict on state.encoding check
+
+1.1.1 / 2013-11-27
+==================
+
+  * add engines
+
+1.1.0 / 2013-11-27
+==================
+
+  * add err.statusCode and err.type
+  * allow for encoding option to be true
+  * pause the stream instead of dumping on error
+  * throw if the stream's encoding is set
+
+1.0.1 / 2013-11-19
+==================
+
+  * dont support streams1, throw if dev set encoding
+
+1.0.0 / 2013-11-17
+==================
+
+  * rename `expected` option to `length`
+
+0.2.0 / 2013-11-15
+==================
+
+  * republish
+
+0.1.1 / 2013-11-15
+==================
+
+  * use bytes
+
+0.1.0 / 2013-11-11
+==================
+
+  * generator support
+
+0.0.3 / 2013-10-10
+==================
+
+  * update repo
+
+0.0.2 / 2013-09-14
+==================
+
+  * dump stream on bad headers
+  * listen to events after defining received and buffers
+
+0.0.1 / 2013-09-14
+==================
+
+  * Initial release
diff --git a/backend/node_modules/raw-body/LICENSE b/backend/node_modules/raw-body/LICENSE
new file mode 100644
index 0000000..1029a7a
--- /dev/null
+++ b/backend/node_modules/raw-body/LICENSE
@@ -0,0 +1,22 @@
+The MIT License (MIT)
+
+Copyright (c) 2013-2014 Jonathan Ong <me@jongleberry.com>
+Copyright (c) 2014-2022 Douglas Christopher Wilson <doug@somethingdoug.com>
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
diff --git a/backend/node_modules/raw-body/README.md b/backend/node_modules/raw-body/README.md
new file mode 100644
index 0000000..d9b36d6
--- /dev/null
+++ b/backend/node_modules/raw-body/README.md
@@ -0,0 +1,223 @@
+# raw-body
+
+[![NPM Version][npm-image]][npm-url]
+[![NPM Downloads][downloads-image]][downloads-url]
+[![Node.js Version][node-version-image]][node-version-url]
+[![Build status][github-actions-ci-image]][github-actions-ci-url]
+[![Test coverage][coveralls-image]][coveralls-url]
+
+Gets the entire buffer of a stream either as a `Buffer` or a string.
+Validates the stream's length against an expected length and maximum limit.
+Ideal for parsing request bodies.
+
+## Install
+
+This is a [Node.js](https://nodejs.org/en/) module available through the
+[npm registry](https://www.npmjs.com/). Installation is done using the
+[`npm install` command](https://docs.npmjs.com/getting-started/installing-npm-packages-locally):
+
+```sh
+$ npm install raw-body
+```
+
+### TypeScript
+
+This module includes a [TypeScript](https://www.typescriptlang.org/)
+declaration file to enable auto complete in compatible editors and type
+information for TypeScript projects. This module depends on the Node.js
+types, so install `@types/node`:
+
+```sh
+$ npm install @types/node
+```
+
+## API
+
+```js
+var getRawBody = require('raw-body')
+```
+
+### getRawBody(stream, [options], [callback])
+
+**Returns a promise if no callback specified and global `Promise` exists.**
+
+Options:
+
+- `length` - The length of the stream.
+  If the contents of the stream do not add up to this length,
+  an `400` error code is returned.
+- `limit` - The byte limit of the body.
+  This is the number of bytes or any string format supported by
+  [bytes](https://www.npmjs.com/package/bytes),
+  for example `1000`, `'500kb'` or `'3mb'`.
+  If the body ends up being larger than this limit,
+  a `413` error code is returned.
+- `encoding` - The encoding to use to decode the body into a string.
+  By default, a `Buffer` instance will be returned when no encoding is specified.
+  Most likely, you want `utf-8`, so setting `encoding` to `true` will decode as `utf-8`.
+  You can use any type of encoding supported by [iconv-lite](https://www.npmjs.org/package/iconv-lite#readme).
+
+You can also pass a string in place of options to just specify the encoding.
+
+If an error occurs, the stream will be paused, everything unpiped,
+and you are responsible for correctly disposing the stream.
+For HTTP requests, you may need to finish consuming the stream if
+you want to keep the socket open for future requests. For streams
+that use file descriptors, you should `stream.destroy()` or
+`stream.close()` to prevent leaks.
+
+## Errors
+
+This module creates errors depending on the error condition during reading.
+The error may be an error from the underlying Node.js implementation, but is
+otherwise an error created by this module, which has the following attributes:
+
+  * `limit` - the limit in bytes
+  * `length` and `expected` - the expected length of the stream
+  * `received` - the received bytes
+  * `encoding` - the invalid encoding
+  * `status` and `statusCode` - the corresponding status code for the error
+  * `type` - the error type
+
+### Types
+
+The errors from this module have a `type` property which allows for the programmatic
+determination of the type of error returned.
+
+#### encoding.unsupported
+
+This error will occur when the `encoding` option is specified, but the value does
+not map to an encoding supported by the [iconv-lite](https://www.npmjs.org/package/iconv-lite#readme)
+module.
+
+#### entity.too.large
+
+This error will occur when the `limit` option is specified, but the stream has
+an entity that is larger.
+
+#### request.aborted
+
+This error will occur when the request stream is aborted by the client before
+reading the body has finished.
+
+#### request.size.invalid
+
+This error will occur when the `length` option is specified, but the stream has
+emitted more bytes.
+
+#### stream.encoding.set
+
+This error will occur when the given stream has an encoding set on it, making it
+a decoded stream. The stream should not have an encoding set and is expected to
+emit `Buffer` objects.
+
+#### stream.not.readable
+
+This error will occur when the given stream is not readable.
+
+## Examples
+
+### Simple Express example
+
+```js
+var contentType = require('content-type')
+var express = require('express')
+var getRawBody = require('raw-body')
+
+var app = express()
+
+app.use(function (req, res, next) {
+  getRawBody(req, {
+    length: req.headers['content-length'],
+    limit: '1mb',
+    encoding: contentType.parse(req).parameters.charset
+  }, function (err, string) {
+    if (err) return next(err)
+    req.text = string
+    next()
+  })
+})
+
+// now access req.text
+```
+
+### Simple Koa example
+
+```js
+var contentType = require('content-type')
+var getRawBody = require('raw-body')
+var koa = require('koa')
+
+var app = koa()
+
+app.use(function * (next) {
+  this.text = yield getRawBody(this.req, {
+    length: this.req.headers['content-length'],
+    limit: '1mb',
+    encoding: contentType.parse(this.req).parameters.charset
+  })
+  yield next
+})
+
+// now access this.text
+```
+
+### Using as a promise
+
+To use this library as a promise, simply omit the `callback` and a promise is
+returned, provided that a global `Promise` is defined.
+
+```js
+var getRawBody = require('raw-body')
+var http = require('http')
+
+var server = http.createServer(function (req, res) {
+  getRawBody(req)
+    .then(function (buf) {
+      res.statusCode = 200
+      res.end(buf.length + ' bytes submitted')
+    })
+    .catch(function (err) {
+      res.statusCode = 500
+      res.end(err.message)
+    })
+})
+
+server.listen(3000)
+```
+
+### Using with TypeScript
+
+```ts
+import * as getRawBody from 'raw-body';
+import * as http from 'http';
+
+const server = http.createServer((req, res) => {
+  getRawBody(req)
+  .then((buf) => {
+    res.statusCode = 200;
+    res.end(buf.length + ' bytes submitted');
+  })
+  .catch((err) => {
+    res.statusCode = err.statusCode;
+    res.end(err.message);
+  });
+});
+
+server.listen(3000);
+```
+
+## License
+
+[MIT](LICENSE)
+
+[npm-image]: https://img.shields.io/npm/v/raw-body.svg
+[npm-url]: https://npmjs.org/package/raw-body
+[node-version-image]: https://img.shields.io/node/v/raw-body.svg
+[node-version-url]: https://nodejs.org/en/download/
+[coveralls-image]: https://img.shields.io/coveralls/stream-utils/raw-body/master.svg
+[coveralls-url]: https://coveralls.io/r/stream-utils/raw-body?branch=master
+[downloads-image]: https://img.shields.io/npm/dm/raw-body.svg
+[downloads-url]: https://npmjs.org/package/raw-body
+[github-actions-ci-image]: https://img.shields.io/github/actions/workflow/status/stream-utils/raw-body/ci.yml?branch=master&label=ci
+[github-actions-ci-url]: https://github.com/jshttp/stream-utils/raw-body?query=workflow%3Aci
diff --git a/backend/node_modules/raw-body/SECURITY.md b/backend/node_modules/raw-body/SECURITY.md
new file mode 100644
index 0000000..2421efc
--- /dev/null
+++ b/backend/node_modules/raw-body/SECURITY.md
@@ -0,0 +1,24 @@
+# Security Policies and Procedures
+
+## Reporting a Bug
+
+The `raw-body` team and community take all security bugs seriously. Thank you
+for improving the security of Express. We appreciate your efforts and
+responsible disclosure and will make every effort to acknowledge your
+contributions.
+
+Report security bugs by emailing the current owners of `raw-body`. This information
+can be found in the npm registry using the command `npm owner ls raw-body`.
+If unsure or unable to get the information from the above, open an issue
+in the [project issue tracker](https://github.com/stream-utils/raw-body/issues)
+asking for the current contact information.
+
+To ensure the timely response to your report, please ensure that the entirety
+of the report is contained within the email body and not solely behind a web
+link or an attachment.
+
+At least one owner will acknowledge your email within 48 hours, and will send a
+more detailed response within 48 hours indicating the next steps in handling
+your report. After the initial reply to your report, the owners will
+endeavor to keep you informed of the progress towards a fix and full
+announcement, and may ask for additional information or guidance.
diff --git a/backend/node_modules/raw-body/index.d.ts b/backend/node_modules/raw-body/index.d.ts
new file mode 100644
index 0000000..b504611
--- /dev/null
+++ b/backend/node_modules/raw-body/index.d.ts
@@ -0,0 +1,85 @@
+declare namespace getRawBody {
+  export type Encoding = string | true;
+
+  export interface Options {
+    /**
+     * The expected length of the stream.
+     */
+    length?: number | string | null;
+    /**
+     * The byte limit of the body. This is the number of bytes or any string
+     * format supported by `bytes`, for example `1000`, `'500kb'` or `'3mb'`.
+     */
+    limit?: number | string | null;
+    /**
+     * The encoding to use to decode the body into a string. By default, a
+     * `Buffer` instance will be returned when no encoding is specified. Most
+     * likely, you want `utf-8`, so setting encoding to `true` will decode as
+     * `utf-8`. You can use any type of encoding supported by `iconv-lite`.
+     */
+    encoding?: Encoding | null;
+  }
+
+  export interface RawBodyError extends Error {
+    /**
+     * The limit in bytes.
+     */
+    limit?: number;
+    /**
+     * The expected length of the stream.
+     */
+    length?: number;
+    expected?: number;
+    /**
+     * The received bytes.
+     */
+    received?: number;
+    /**
+     * The encoding.
+     */
+    encoding?: string;
+    /**
+     * The corresponding status code for the error.
+     */
+    status: number;
+    statusCode: number;
+    /**
+     * The error type.
+     */
+    type: string;
+  }
+}
+
+/**
+ * Gets the entire buffer of a stream either as a `Buffer` or a string.
+ * Validates the stream's length against an expected length and maximum
+ * limit. Ideal for parsing request bodies.
+ */
+declare function getRawBody(
+  stream: NodeJS.ReadableStream,
+  callback: (err: getRawBody.RawBodyError, body: Buffer) => void
+): void;
+
+declare function getRawBody(
+  stream: NodeJS.ReadableStream,
+  options: (getRawBody.Options & { encoding: getRawBody.Encoding }) | getRawBody.Encoding,
+  callback: (err: getRawBody.RawBodyError, body: string) => void
+): void;
+
+declare function getRawBody(
+  stream: NodeJS.ReadableStream,
+  options: getRawBody.Options,
+  callback: (err: getRawBody.RawBodyError, body: Buffer) => void
+): void;
+
+declare function getRawBody(
+  stream: NodeJS.ReadableStream,
+  options: (getRawBody.Options & { encoding: getRawBody.Encoding }) | getRawBody.Encoding
+): Promise<string>;
+
+declare function getRawBody(
+  stream: NodeJS.ReadableStream,
+  options?: getRawBody.Options
+): Promise<Buffer>;
+
+export = getRawBody;
diff --git a/backend/node_modules/raw-body/index.js b/backend/node_modules/raw-body/index.js
new file mode 100644
index 0000000..9cdcd12
--- /dev/null
+++ b/backend/node_modules/raw-body/index.js
@@ -0,0 +1,336 @@
+/*!
+ * raw-body
+ * Copyright(c) 2013-2014 Jonathan Ong
+ * Copyright(c) 2014-2022 Douglas Christopher Wilson
+ * MIT Licensed
+ */
+
+'use strict'
+
+/**
+ * Module dependencies.
+ * @private
+ */
+
+var asyncHooks = tryRequireAsyncHooks()
+var bytes = require('bytes')
+var createError = require('http-errors')
+var iconv = require('iconv-lite')
+var unpipe = require('unpipe')
+
+/**
+ * Module exports.
+ * @public
+ */
+
+module.exports = getRawBody
+
+/**
+ * Module variables.
+ * @private
+ */
+
+var ICONV_ENCODING_MESSAGE_REGEXP = /^Encoding not recognized: /
+
+/**
+ * Get the decoder for a given encoding.
+ *
+ * @param {string} encoding
+ * @private
+ */
+
+function getDecoder (encoding) {
+  if (!encoding) return null
+
+  try {
+    return iconv.getDecoder(encoding)
+  } catch (e) {
+    // error getting decoder
+    if (!ICONV_ENCODING_MESSAGE_REGEXP.test(e.message)) throw e
+
+    // the encoding was not found
+    throw createError(415, 'specified encoding unsupported', {
+      encoding: encoding,
+      type: 'encoding.unsupported'
+    })
+  }
+}
+
+/**
+ * Get the raw body of a stream (typically HTTP).
+ *
+ * @param {object} stream
+ * @param {object|string|function} [options]
+ * @param {function} [callback]
+ * @public
+ */
+
+function getRawBody (stream, options, callback) {
+  var done = callback
+  var opts = options || {}
+
+  // light validation
+  if (stream === undefined) {
+    throw new TypeError('argument stream is required')
+  } else if (typeof stream !== 'object' || stream === null || typeof stream.on !== 'function') {
+    throw new TypeError('argument stream must be a stream')
+  }
+
+  if (options === true || typeof options === 'string') {
+    // short cut for encoding
+    opts = {
+      encoding: options
+    }
+  }
+
+  if (typeof options === 'function') {
+    done = options
+    opts = {}
+  }
+
+  // validate callback is a function, if provided
+  if (done !== undefined && typeof done !== 'function') {
+    throw new TypeError('argument callback must be a function')
+  }
+
+  // require the callback without promises
+  if (!done && !global.Promise) {
+    throw new TypeError('argument callback is required')
+  }
+
+  // get encoding
+  var encoding = opts.encoding !== true
+    ? opts.encoding
+    : 'utf-8'
+
+  // convert the limit to an integer
+  var limit = bytes.parse(opts.limit)
+
+  // convert the expected length to an integer
+  var length = opts.length != null && !isNaN(opts.length)
+    ? parseInt(opts.length, 10)
+    : null
+
+  if (done) {
+    // classic callback style
+    return readStream(stream, encoding, length, limit, wrap(done))
+  }
+
+  return new Promise(function executor (resolve, reject) {
+    readStream(stream, encoding, length, limit, function onRead (err, buf) {
+      if (err) return reject(err)
+      resolve(buf)
+    })
+  })
+}
+
+/**
+ * Halt a stream.
+ *
+ * @param {Object} stream
+ * @private
+ */
+
+function halt (stream) {
+  // unpipe everything from the stream
+  unpipe(stream)
+
+  // pause stream
+  if (typeof stream.pause === 'function') {
+    stream.pause()
+  }
+}
+
+/**
+ * Read the data from the stream.
+ *
+ * @param {object} stream
+ * @param {string} encoding
+ * @param {number} length
+ * @param {number} limit
+ * @param {function} callback
+ * @public
+ */
+
+function readStream (stream, encoding, length, limit, callback) {
+  var complete = false
+  var sync = true
+
+  // check the length and limit options.
+  // note: we intentionally leave the stream paused,
+  // so users should handle the stream themselves.
+  if (limit !== null && length !== null && length > limit) {
+    return done(createError(413, 'request entity too large', {
+      expected: length,
+      length: length,
+      limit: limit,
+      type: 'entity.too.large'
+    }))
+  }
+
+  // streams1: assert request encoding is buffer.
+  // streams2+: assert the stream encoding is buffer.
+  //   stream._decoder: streams1
+  //   state.encoding: streams2
+  //   state.decoder: streams2, specifically < 0.10.6
+  var state = stream._readableState
+  if (stream._decoder || (state && (state.encoding || state.decoder))) {
+    // developer error
+    return done(createError(500, 'stream encoding should not be set', {
+      type: 'stream.encoding.set'
+    }))
+  }
+
+  if (typeof stream.readable !== 'undefined' && !stream.readable) {
+    return done(createError(500, 'stream is not readable', {
+      type: 'stream.not.readable'
+    }))
+  }
+
+  var received = 0
+  var decoder
+
+  try {
+    decoder = getDecoder(encoding)
+  } catch (err) {
+    return done(err)
+  }
+
+  var buffer = decoder
+    ? ''
+    : []
+
+  // attach listeners
+  stream.on('aborted', onAborted)
+  stream.on('close', cleanup)
+  stream.on('data', onData)
+  stream.on('end', onEnd)
+  stream.on('error', onEnd)
+
+  // mark sync section complete
+  sync = false
+
+  function done () {
+    var args = new Array(arguments.length)
+
+    // copy arguments
+    for (var i = 0; i < args.length; i++) {
+      args[i] = arguments[i]
+    }
+
+    // mark complete
+    complete = true
+
+    if (sync) {
+      process.nextTick(invokeCallback)
+    } else {
+      invokeCallback()
+    }
+
+    function invokeCallback () {
+      cleanup()
+
+      if (args[0]) {
+        // halt the stream on error
+        halt(stream)
+      }
+
+      callback.apply(null, args)
+    }
+  }
+
+  function onAborted () {
+    if (complete) return
+
+    done(createError(400, 'request aborted', {
+      code: 'ECONNABORTED',
+      expected: length,
+      length: length,
+      received: received,
+      type: 'request.aborted'
+    }))
+  }
+
+  function onData (chunk) {
+    if (complete) return
+
+    received += chunk.length
+
+    if (limit !== null && received > limit) {
+      done(createError(413, 'request entity too large', {
+        limit: limit,
+        received: received,
+        type: 'entity.too.large'
+      }))
+    } else if (decoder) {
+      buffer += decoder.write(chunk)
+    } else {
+      buffer.push(chunk)
+    }
+  }
+
+  function onEnd (err) {
+    if (complete) return
+    if (err) return done(err)
+
+    if (length !== null && received !== length) {
+      done(createError(400, 'request size did not match content length', {
+        expected: length,
+        length: length,
+        received: received,
+        type: 'request.size.invalid'
+      }))
+    } else {
+      var string = decoder
+        ? buffer + (decoder.end() || '')
+        : Buffer.concat(buffer)
+      done(null, string)
+    }
+  }
+
+  function cleanup () {
+    buffer = null
+
+    stream.removeListener('aborted', onAborted)
+    stream.removeListener('data', onData)
+    stream.removeListener('end', onEnd)
+    stream.removeListener('error', onEnd)
+    stream.removeListener('close', cleanup)
+  }
+}
+
+/**
+ * Try to require async_hooks
+ * @private
+ */
+
+function tryRequireAsyncHooks () {
+  try {
+    return require('async_hooks')
+  } catch (e) {
+    return {}
+  }
+}
+
+/**
+ * Wrap function with async resource, if possible.
+ * AsyncResource.bind static method backported.
+ * @private
+ */
+
+function wrap (fn) {
+  var res
+
+  // create anonymous resource
+  if (asyncHooks.AsyncResource) {
+    res = new asyncHooks.AsyncResource(fn.name || 'bound-anonymous-fn')
+  }
+
+  // incompatible node.js
+  if (!res || !res.runInAsyncScope) {
+    return fn
+  }
+
+  // return bound function
+  return res.runInAsyncScope.bind(res, fn, null)
+}
diff --git a/backend/node_modules/raw-body/node_modules/iconv-lite/Changelog.md b/backend/node_modules/raw-body/node_modules/iconv-lite/Changelog.md
new file mode 100644
index 0000000..fab8131
--- /dev/null
+++ b/backend/node_modules/raw-body/node_modules/iconv-lite/Changelog.md
@@ -0,0 +1,236 @@
+## 0.7.0
+
+
+### 🐞 Bug fixes
+
+* Handle split surrogate pairs when encoding utf8 - by [@yosion-p](https://github.com/yosion-p) and [@ashtuchkin](https://github.com/ashtuchkin) in [#282](https://github.com/ashtuchkin/iconv-lite/pull/282):
+
+    Handle a case where streaming utf8 encoder (converting js strings -> buffers) encounters 
+    surrogate pairs split between chunks (last character of one chunk is high surrogate and first
+    character of the next chunk is a low surrogate).
+
+* Avoid false positives in encodingExists by using objects without a prototype - by [@bjohansebas](https://github.com/bjohansebas) in [#328](https://github.com/ashtuchkin/iconv-lite/pull/328)
+
+    The encodingExists method could return incorrect results if the lookup matched properties inherited
+    from the prototype of the object that stores the encodings, such as constructor and others. This change
+    replaces that object with one that has no prototype, ensuring that only explicitly defined valid encodings
+    in the library are considered. In addition, the fix is applied to the internal cache system to avoid the same
+    kind of false positives
+
+### 🚀 Improvements
+
+* Make explicit that decode() method supports Uint8Array input - by [@jardicc](https://github.com/jardicc) in [#271](https://github.com/ashtuchkin/iconv-lite/pull/271)
+* Remove compatibility check for StringDecoder.end method - by [@bjohansebas](https://github.com/bjohansebas) in [#331](https://github.com/ashtuchkin/iconv-lite/pull/331)
+
+## 0.6.3 / 2021-05-23
+  * Fix HKSCS encoding to prefer Big5 codes if both Big5 and HKSCS codes are possible (#264)
+
+
+## 0.6.2 / 2020-07-08
+  * Support Uint8Array-s decoding without conversion to Buffers, plus fix an edge case.
+
+
+## 0.6.1 / 2020-06-28
+  * Support Uint8Array-s directly when decoding (#246, by @gyzerok)
+  * Unify package.json version ranges to be strictly semver-compatible (#241)
+  * Fix minor issue in UTF-32 decoder's endianness detection code.
+
+
+## 0.6.0 / 2020-06-08
+  * Updated 'gb18030' encoding to :2005 edition (see https://github.com/whatwg/encoding/issues/22).
+  * Removed `iconv.extendNodeEncodings()` mechanism. It was deprecated 5 years ago and didn't work 
+    in recent Node versions.
+  * Reworked Streaming API behavior in browser environments to fix #204. Streaming API will be 
+    excluded by default in browser packs, saving ~100Kb bundle size, unless enabled explicitly using 
+    `iconv.enableStreamingAPI(require('stream'))`.
+  * Updates to development environment & tests:
+    * Added ./test/webpack private package to test complex new use cases that need custom environment. 
+      It's tested as a separate job in Travis CI.
+    * Updated generation code for the new EUC-KR index file format from Encoding Standard.
+    * Removed Buffer() constructor in tests (#197 by @gabrielschulhof).
+
+
+## 0.5.2 / 2020-06-08
+  * Added `iconv.getEncoder()` and `iconv.getDecoder()` methods to typescript definitions (#229).
+  * Fixed semver version to 6.1.2 to support Node 8.x (by @tanandara).
+  * Capped iconv version to 2.x as 3.x has dropped support for older Node versions.
+  * Switched from instanbul to c8 for code coverage.
+
+
+## 0.5.1 / 2020-01-18
+
+  * Added cp720 encoding (#221, by @kr-deps)
+  * (minor) Changed Changelog.md formatting to use h2. 
+
+
+## 0.5.0 / 2019-06-26
+
+  * Added UTF-32 encoding, both little-endian and big-endian variants (UTF-32LE, UTF32-BE). If endianness
+    is not provided for decoding, it's deduced automatically from the stream using a heuristic similar to
+    what we use in UTF-16. (great work in #216 by @kshetline)
+  * Several minor updates to README (#217 by @oldj, plus some more)
+  * Added Node versions 10 and 12 to Travis test harness.
+
+
+## 0.4.24 / 2018-08-22
+
+  * Added MIK encoding (#196, by @Ivan-Kalatchev)
+
+
+## 0.4.23 / 2018-05-07
+
+  * Fix deprecation warning in Node v10 due to the last usage of `new Buffer` (#185, by @felixbuenemann)
+  * Switched from NodeBuffer to Buffer in typings (#155 by @felixfbecker, #186 by @larssn)
+
+
+## 0.4.22 / 2018-05-05
+
+  * Use older semver style for dependencies to be compatible with Node version 0.10 (#182, by @dougwilson)
+  * Fix tests to accomodate fixes in Node v10 (#182, by @dougwilson)
+
+
+## 0.4.21 / 2018-04-06
+
+  * Fix encoding canonicalization (#156)
+  * Fix the paths in the "browser" field in package.json (#174 by @LMLB)
+  * Removed "contributors" section in package.json - see Git history instead.
+
+
+## 0.4.20 / 2018-04-06
+
+  * Updated `new Buffer()` usages with recommended replacements as it's being deprecated in Node v10 (#176, #178 by @ChALkeR)
+
+
+## 0.4.19 / 2017-09-09
+
+  * Fixed iso8859-1 codec regression in handling untranslatable characters (#162, caused by #147)
+  * Re-generated windows1255 codec, because it was updated in iconv project
+  * Fixed grammar in error message when iconv-lite is loaded with encoding other than utf8
+
+
+## 0.4.18 / 2017-06-13
+
+  * Fixed CESU-8 regression in Node v8.
+
+
+## 0.4.17 / 2017-04-22
+
+ * Updated typescript definition file to support Angular 2 AoT mode (#153 by @larssn)
+
+
+## 0.4.16 / 2017-04-22
+
+ * Added support for React Native (#150)
+ * Changed iso8859-1 encoding to usine internal 'binary' encoding, as it's the same thing (#147 by @mscdex)
+ * Fixed typo in Readme (#138 by @jiangzhuo)
+ * Fixed build for Node v6.10+ by making correct version comparison
+ * Added a warning if iconv-lite is loaded not as utf-8 (see #142)
+
+
+## 0.4.15 / 2016-11-21
+
+ * Fixed typescript type definition (#137)
+
+
+## 0.4.14 / 2016-11-20
+
+ * Preparation for v1.0
+ * Added Node v6 and latest Node versions to Travis CI test rig
+ * Deprecated Node v0.8 support
+ * Typescript typings (@larssn)
+ * Fix encoding of Euro character in GB 18030 (inspired by @lygstate)
+ * Add ms prefix to dbcs windows encodings (@rokoroku)
+
+
+## 0.4.13 / 2015-10-01
+
+ * Fix silly mistake in deprecation notice.
+
+
+## 0.4.12 / 2015-09-26
+
+ * Node v4 support:
+   * Added CESU-8 decoding (#106)
+   * Added deprecation notice for `extendNodeEncodings`
+   * Added Travis tests for Node v4 and io.js latest (#105 by @Mithgol)
+
+
+## 0.4.11 / 2015-07-03
+
+ * Added CESU-8 encoding.
+
+
+## 0.4.10 / 2015-05-26
+
+ * Changed UTF-16 endianness heuristic to take into account any ASCII chars, not
+   just spaces. This should minimize the importance of "default" endianness.
+
+
+## 0.4.9 / 2015-05-24
+
+ * Streamlined BOM handling: strip BOM by default, add BOM when encoding if 
+   addBOM: true. Added docs to Readme.
+ * UTF16 now uses UTF16-LE by default.
+ * Fixed minor issue with big5 encoding.
+ * Added io.js testing on Travis; updated node-iconv version to test against.
+   Now we just skip testing SBCS encodings that node-iconv doesn't support.
+ * (internal refactoring) Updated codec interface to use classes.
+ * Use strict mode in all files.
+
+
+## 0.4.8 / 2015-04-14
+ 
+ * added alias UNICODE-1-1-UTF-7 for UTF-7 encoding (#94)
+
+
+## 0.4.7 / 2015-02-05
+
+ * stop official support of Node.js v0.8. Should still work, but no guarantees.
+   reason: Packages needed for testing are hard to get on Travis CI.
+ * work in environment where Object.prototype is monkey patched with enumerable 
+   props (#89).
+
+
+## 0.4.6 / 2015-01-12
+ 
+ * fix rare aliases of single-byte encodings (thanks @mscdex)
+ * double the timeout for dbcs tests to make them less flaky on travis
+
+
+## 0.4.5 / 2014-11-20
+
+ * fix windows-31j and x-sjis encoding support (@nleush)
+ * minor fix: undefined variable reference when internal error happens
+
+
+## 0.4.4 / 2014-07-16
+
+ * added encodings UTF-7 (RFC2152) and UTF-7-IMAP (RFC3501 Section 5.1.3)
+ * fixed streaming base64 encoding
+
+
+## 0.4.3 / 2014-06-14
+
+ * added encodings UTF-16BE and UTF-16 with BOM
+
+
+## 0.4.2 / 2014-06-12
+
+ * don't throw exception if `extendNodeEncodings()` is called more than once
+
+
+## 0.4.1 / 2014-06-11
+
+ * codepage 808 added
+
+
+## 0.4.0 / 2014-06-10
+
+ * code is rewritten from scratch
+ * all widespread encodings are supported
+ * streaming interface added
+ * browserify compatibility added
+ * (optional) extend core primitive encodings to make usage even simpler
+ * moved from vows to mocha as the testing framework
+
+
diff --git a/backend/node_modules/raw-body/node_modules/iconv-lite/LICENSE b/backend/node_modules/raw-body/node_modules/iconv-lite/LICENSE
new file mode 100644
index 0000000..d518d83
--- /dev/null
+++ b/backend/node_modules/raw-body/node_modules/iconv-lite/LICENSE
@@ -0,0 +1,21 @@
+Copyright (c) 2011 Alexander Shtuchkin
+
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of this software and associated documentation files (the
+"Software"), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sublicense, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to
+the following conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+
diff --git a/backend/node_modules/raw-body/node_modules/iconv-lite/README.md b/backend/node_modules/raw-body/node_modules/iconv-lite/README.md
new file mode 100644
index 0000000..78a7a5f
--- /dev/null
+++ b/backend/node_modules/raw-body/node_modules/iconv-lite/README.md
@@ -0,0 +1,138 @@
+## iconv-lite: Pure JS character encoding conversion
+
+[![NPM Version][npm-version-image]][npm-url]
+[![NPM Downloads][npm-downloads-image]][npm-downloads-url]
+[![License][license-image]][license-url]
+[![NPM Install Size][npm-install-size-image]][npm-install-size-url]
+
+* No need for native code compilation. Quick to install, works on Windows, Web, and in sandboxed environments.
+* Used in popular projects like [Express.js (body_parser)](https://github.com/expressjs/body-parser), 
+  [Grunt](http://gruntjs.com/), [Nodemailer](http://www.nodemailer.com/), [Yeoman](http://yeoman.io/) and others.
+* Faster than [node-iconv](https://github.com/bnoordhuis/node-iconv) (see below for performance comparison).
+* Intuitive encode/decode API, including Streaming support.
+* In-browser usage via [browserify](https://github.com/substack/node-browserify) or [webpack](https://webpack.js.org/) (~180kb gzip compressed with Buffer shim included).
+* Typescript [type definition file](https://github.com/ashtuchkin/iconv-lite/blob/master/lib/index.d.ts) included.
+* React Native is supported (need to install `stream` module to enable Streaming API).
+
+## Usage
+
+### Basic API
+
+```javascript
+var iconv = require('iconv-lite');
+
+// Convert from an encoded buffer to a js string.
+str = iconv.decode(Buffer.from([0x68, 0x65, 0x6c, 0x6c, 0x6f]), 'win1251');
+
+// Convert from a js string to an encoded buffer.
+buf = iconv.encode("Sample input string", 'win1251');
+
+// Check if encoding is supported
+iconv.encodingExists("us-ascii")
+```
+
+### Streaming API
+
+```javascript
+// Decode stream (from binary data stream to js strings)
+http.createServer(function(req, res) {
+    var converterStream = iconv.decodeStream('win1251');
+    req.pipe(converterStream);
+
+    converterStream.on('data', function(str) {
+        console.log(str); // Do something with decoded strings, chunk-by-chunk.
+    });
+});
+
+// Convert encoding streaming example
+fs.createReadStream('file-in-win1251.txt')
+    .pipe(iconv.decodeStream('win1251'))
+    .pipe(iconv.encodeStream('ucs2'))
+    .pipe(fs.createWriteStream('file-in-ucs2.txt'));
+
+// Sugar: all encode/decode streams have .collect(cb) method to accumulate data.
+http.createServer(function(req, res) {
+    req.pipe(iconv.decodeStream('win1251')).collect(function(err, body) {
+        assert(typeof body == 'string');
+        console.log(body); // full request body string
+    });
+});
+```
+
+## Supported encodings
+
+ *  All node.js native encodings: utf8, ucs2 / utf16-le, ascii, binary, base64, hex.
+ *  Additional unicode encodings: utf16, utf16-be, utf-7, utf-7-imap, utf32, utf32-le, and utf32-be.
+ *  All widespread singlebyte encodings: Windows 125x family, ISO-8859 family, 
+    IBM/DOS codepages, Macintosh family, KOI8 family, all others supported by iconv library. 
+    Aliases like 'latin1', 'us-ascii' also supported.
+ *  All widespread multibyte encodings: CP932, CP936, CP949, CP950, GB2312, GBK, GB18030, Big5, Shift_JIS, EUC-JP.
+
+See [all supported encodings on wiki](https://github.com/ashtuchkin/iconv-lite/wiki/Supported-Encodings).
+
+Most singlebyte encodings are generated automatically from [node-iconv](https://github.com/bnoordhuis/node-iconv). Thank you Ben Noordhuis and libiconv authors!
+
+Multibyte encodings are generated from [Unicode.org mappings](http://www.unicode.org/Public/MAPPINGS/) and [WHATWG Encoding Standard mappings](http://encoding.spec.whatwg.org/). Thank you, respective authors!
+
+## Encoding/decoding speed
+
+Comparison with node-iconv module (1000x256kb, on MacBook Pro, Core i5/2.6 GHz, Node v0.12.0). 
+Note: your results may vary, so please always check on your hardware.
+
+    operation             iconv@2.1.4   iconv-lite@0.4.7
+    ----------------------------------------------------------
+    encode('win1251')     ~96 Mb/s      ~320 Mb/s
+    decode('win1251')     ~95 Mb/s      ~246 Mb/s
+
+## BOM handling
+
+ * Decoding: BOM is stripped by default, unless overridden by passing `stripBOM: false` in options
+   (f.ex. `iconv.decode(buf, enc, {stripBOM: false})`).
+   A callback might also be given as a `stripBOM` parameter - it'll be called if BOM character was actually found.
+ * If you want to detect UTF-8 BOM when decoding other encodings, use [node-autodetect-decoder-stream](https://github.com/danielgindi/node-autodetect-decoder-stream) module.
+ * Encoding: No BOM added, unless overridden by `addBOM: true` option.
+
+## UTF-16 Encodings
+
+This library supports UTF-16LE, UTF-16BE and UTF-16 encodings. First two are straightforward, but UTF-16 is trying to be
+smart about endianness in the following ways:
+ * Decoding: uses BOM and 'spaces heuristic' to determine input endianness. Default is UTF-16LE, but can be 
+   overridden with `defaultEncoding: 'utf-16be'` option. Strips BOM unless `stripBOM: false`.
+ * Encoding: uses UTF-16LE and writes BOM by default. Use `addBOM: false` to override.
+
+## UTF-32 Encodings
+
+This library supports UTF-32LE, UTF-32BE and UTF-32 encodings. Like the UTF-16 encoding above, UTF-32 defaults to UTF-32LE, but uses BOM and 'spaces heuristics' to determine input endianness. 
+ * The default of UTF-32LE can be overridden with the `defaultEncoding: 'utf-32be'` option. Strips BOM unless `stripBOM: false`.
+ * Encoding: uses UTF-32LE and writes BOM by default. Use `addBOM: false` to override. (`defaultEncoding: 'utf-32be'` can also be used here to change encoding.)
+
+## Other notes
+
+When decoding, be sure to supply a Buffer to decode() method, otherwise [bad things usually happen](https://github.com/ashtuchkin/iconv-lite/wiki/Use-Buffers-when-decoding).  
+Untranslatable characters are set to � or ?. No transliteration is currently supported.  
+Node versions 0.10.31 and 0.11.13 are buggy, don't use them (see [#65](https://github.com/ashtuchkin/iconv-lite/issues/65), [#77](https://github.com/ashtuchkin/iconv-lite/issues/77)).  
+
+## Testing
+
+```sh
+git clone git@github.com:ashtuchkin/iconv-lite.git
+cd iconv-lite
+npm install
+npm test
+    
+# To view performance:
+npm run test:performance
+
+# To view test coverage: 
+npm run test:cov
+open coverage/index.html
+```
+
+[npm-downloads-image]: https://badgen.net/npm/dm/iconv-lite
+[npm-downloads-url]: https://npmcharts.com/compare/iconv-lite?minimal=true
+[npm-url]: https://npmjs.org/package/iconv-lite
+[npm-version-image]: https://badgen.net/npm/v/iconv-lite
+[npm-install-size-image]: https://badgen.net/packagephobia/install/iconv-lite
+[npm-install-size-url]: https://packagephobia.com/result?p=iconv-lite
+[license-image]: https://img.shields.io/npm/l/iconv-lite.svg
+[license-url]: https://github.com/ashtuchkin/iconv-lite/blob/HEAD/LICENSE
\ No newline at end of file
diff --git a/backend/node_modules/raw-body/node_modules/iconv-lite/encodings/dbcs-codec.js b/backend/node_modules/raw-body/node_modules/iconv-lite/encodings/dbcs-codec.js
new file mode 100644
index 0000000..bfec7f2
--- /dev/null
+++ b/backend/node_modules/raw-body/node_modules/iconv-lite/encodings/dbcs-codec.js
@@ -0,0 +1,532 @@
+"use strict"
+var Buffer = require("safer-buffer").Buffer
+
+// Multibyte codec. In this scheme, a character is represented by 1 or more bytes.
+// Our codec supports UTF-16 surrogates, extensions for GB18030 and unicode sequences.
+// To save memory and loading time, we read table files only when requested.
+
+exports._dbcs = DBCSCodec
+
+var UNASSIGNED = -1
+var GB18030_CODE = -2
+var SEQ_START = -10
+var NODE_START = -1000
+var UNASSIGNED_NODE = new Array(0x100)
+var DEF_CHAR = -1
+
+for (var i = 0; i < 0x100; i++) { UNASSIGNED_NODE[i] = UNASSIGNED }
+
+// Class DBCSCodec reads and initializes mapping tables.
+function DBCSCodec (codecOptions, iconv) {
+  this.encodingName = codecOptions.encodingName
+  if (!codecOptions) { throw new Error("DBCS codec is called without the data.") }
+  if (!codecOptions.table) { throw new Error("Encoding '" + this.encodingName + "' has no data.") }
+
+  // Load tables.
+  var mappingTable = codecOptions.table()
+
+  // Decode tables: MBCS -> Unicode.
+
+  // decodeTables is a trie, encoded as an array of arrays of integers. Internal arrays are trie nodes and all have len = 256.
+  // Trie root is decodeTables[0].
+  // Values: >=  0 -> unicode character code. can be > 0xFFFF
+  //         == UNASSIGNED -> unknown/unassigned sequence.
+  //         == GB18030_CODE -> this is the end of a GB18030 4-byte sequence.
+  //         <= NODE_START -> index of the next node in our trie to process next byte.
+  //         <= SEQ_START  -> index of the start of a character code sequence, in decodeTableSeq.
+  this.decodeTables = []
+  this.decodeTables[0] = UNASSIGNED_NODE.slice(0) // Create root node.
+
+  // Sometimes a MBCS char corresponds to a sequence of unicode chars. We store them as arrays of integers here.
+  this.decodeTableSeq = []
+
+  // Actual mapping tables consist of chunks. Use them to fill up decode tables.
+  for (var i = 0; i < mappingTable.length; i++) { this._addDecodeChunk(mappingTable[i]) }
+
+  // Load & create GB18030 tables when needed.
+  if (typeof codecOptions.gb18030 === "function") {
+    this.gb18030 = codecOptions.gb18030() // Load GB18030 ranges.
+
+    // Add GB18030 common decode nodes.
+    var commonThirdByteNodeIdx = this.decodeTables.length
+    this.decodeTables.push(UNASSIGNED_NODE.slice(0))
+
+    var commonFourthByteNodeIdx = this.decodeTables.length
+    this.decodeTables.push(UNASSIGNED_NODE.slice(0))
+
+    // Fill out the tree
+    var firstByteNode = this.decodeTables[0]
+    for (var i = 0x81; i <= 0xFE; i++) {
+      var secondByteNode = this.decodeTables[NODE_START - firstByteNode[i]]
+      for (var j = 0x30; j <= 0x39; j++) {
+        if (secondByteNode[j] === UNASSIGNED) {
+          secondByteNode[j] = NODE_START - commonThirdByteNodeIdx
+        } else if (secondByteNode[j] > NODE_START) {
+          throw new Error("gb18030 decode tables conflict at byte 2")
+        }
+
+        var thirdByteNode = this.decodeTables[NODE_START - secondByteNode[j]]
+        for (var k = 0x81; k <= 0xFE; k++) {
+          if (thirdByteNode[k] === UNASSIGNED) {
+            thirdByteNode[k] = NODE_START - commonFourthByteNodeIdx
+          } else if (thirdByteNode[k] === NODE_START - commonFourthByteNodeIdx) {
+            continue
+          } else if (thirdByteNode[k] > NODE_START) {
+            throw new Error("gb18030 decode tables conflict at byte 3")
+          }
+
+          var fourthByteNode = this.decodeTables[NODE_START - thirdByteNode[k]]
+          for (var l = 0x30; l <= 0x39; l++) {
+            if (fourthByteNode[l] === UNASSIGNED) { fourthByteNode[l] = GB18030_CODE }
+          }
+        }
+      }
+    }
+  }
+
+  this.defaultCharUnicode = iconv.defaultCharUnicode
+
+  // Encode tables: Unicode -> DBCS.
+
+  // `encodeTable` is array mapping from unicode char to encoded char. All its values are integers for performance.
+  // Because it can be sparse, it is represented as array of buckets by 256 chars each. Bucket can be null.
+  // Values: >=  0 -> it is a normal char. Write the value (if <=256 then 1 byte, if <=65536 then 2 bytes, etc.).
+  //         == UNASSIGNED -> no conversion found. Output a default char.
+  //         <= SEQ_START  -> it's an index in encodeTableSeq, see below. The character starts a sequence.
+  this.encodeTable = []
+
+  // `encodeTableSeq` is used when a sequence of unicode characters is encoded as a single code. We use a tree of
+  // objects where keys correspond to characters in sequence and leafs are the encoded dbcs values. A special DEF_CHAR key
+  // means end of sequence (needed when one sequence is a strict subsequence of another).
+  // Objects are kept separately from encodeTable to increase performance.
+  this.encodeTableSeq = []
+
+  // Some chars can be decoded, but need not be encoded.
+  var skipEncodeChars = {}
+  if (codecOptions.encodeSkipVals) {
+    for (var i = 0; i < codecOptions.encodeSkipVals.length; i++) {
+      var val = codecOptions.encodeSkipVals[i]
+      if (typeof val === "number") { skipEncodeChars[val] = true } else {
+        for (var j = val.from; j <= val.to; j++) { skipEncodeChars[j] = true }
+      }
+    }
+  }
+
+  // Use decode trie to recursively fill out encode tables.
+  this._fillEncodeTable(0, 0, skipEncodeChars)
+
+  // Add more encoding pairs when needed.
+  if (codecOptions.encodeAdd) {
+    for (var uChar in codecOptions.encodeAdd) {
+      if (Object.prototype.hasOwnProperty.call(codecOptions.encodeAdd, uChar)) { this._setEncodeChar(uChar.charCodeAt(0), codecOptions.encodeAdd[uChar]) }
+    }
+  }
+
+  this.defCharSB = this.encodeTable[0][iconv.defaultCharSingleByte.charCodeAt(0)]
+  if (this.defCharSB === UNASSIGNED) this.defCharSB = this.encodeTable[0]["?"]
+  if (this.defCharSB === UNASSIGNED) this.defCharSB = "?".charCodeAt(0)
+}
+
+DBCSCodec.prototype.encoder = DBCSEncoder
+DBCSCodec.prototype.decoder = DBCSDecoder
+
+// Decoder helpers
+DBCSCodec.prototype._getDecodeTrieNode = function (addr) {
+  var bytes = []
+  for (; addr > 0; addr >>>= 8) { bytes.push(addr & 0xFF) }
+  if (bytes.length == 0) { bytes.push(0) }
+
+  var node = this.decodeTables[0]
+  for (var i = bytes.length - 1; i > 0; i--) { // Traverse nodes deeper into the trie.
+    var val = node[bytes[i]]
+
+    if (val == UNASSIGNED) { // Create new node.
+      node[bytes[i]] = NODE_START - this.decodeTables.length
+      this.decodeTables.push(node = UNASSIGNED_NODE.slice(0))
+    } else if (val <= NODE_START) { // Existing node.
+      node = this.decodeTables[NODE_START - val]
+    } else { throw new Error("Overwrite byte in " + this.encodingName + ", addr: " + addr.toString(16)) }
+  }
+  return node
+}
+
+DBCSCodec.prototype._addDecodeChunk = function (chunk) {
+  // First element of chunk is the hex mbcs code where we start.
+  var curAddr = parseInt(chunk[0], 16)
+
+  // Choose the decoding node where we'll write our chars.
+  var writeTable = this._getDecodeTrieNode(curAddr)
+  curAddr = curAddr & 0xFF
+
+  // Write all other elements of the chunk to the table.
+  for (var k = 1; k < chunk.length; k++) {
+    var part = chunk[k]
+    if (typeof part === "string") { // String, write as-is.
+      for (var l = 0; l < part.length;) {
+        var code = part.charCodeAt(l++)
+        if (code >= 0xD800 && code < 0xDC00) { // Decode surrogate
+          var codeTrail = part.charCodeAt(l++)
+          if (codeTrail >= 0xDC00 && codeTrail < 0xE000) { writeTable[curAddr++] = 0x10000 + (code - 0xD800) * 0x400 + (codeTrail - 0xDC00) } else { throw new Error("Incorrect surrogate pair in " + this.encodingName + " at chunk " + chunk[0]) }
+        } else if (code > 0x0FF0 && code <= 0x0FFF) { // Character sequence (our own encoding used)
+          var len = 0xFFF - code + 2
+          var seq = []
+          for (var m = 0; m < len; m++) { seq.push(part.charCodeAt(l++)) } // Simple variation: don't support surrogates or subsequences in seq.
+
+          writeTable[curAddr++] = SEQ_START - this.decodeTableSeq.length
+          this.decodeTableSeq.push(seq)
+        } else { writeTable[curAddr++] = code } // Basic char
+      }
+    } else if (typeof part === "number") { // Integer, meaning increasing sequence starting with prev character.
+      var charCode = writeTable[curAddr - 1] + 1
+      for (var l = 0; l < part; l++) { writeTable[curAddr++] = charCode++ }
+    } else { throw new Error("Incorrect type '" + typeof part + "' given in " + this.encodingName + " at chunk " + chunk[0]) }
+  }
+  if (curAddr > 0xFF) { throw new Error("Incorrect chunk in " + this.encodingName + " at addr " + chunk[0] + ": too long" + curAddr) }
+}
+
+// Encoder helpers
+DBCSCodec.prototype._getEncodeBucket = function (uCode) {
+  var high = uCode >> 8 // This could be > 0xFF because of astral characters.
+  if (this.encodeTable[high] === undefined) {
+    this.encodeTable[high] = UNASSIGNED_NODE.slice(0)
+  } // Create bucket on demand.
+  return this.encodeTable[high]
+}
+
+DBCSCodec.prototype._setEncodeChar = function (uCode, dbcsCode) {
+  var bucket = this._getEncodeBucket(uCode)
+  var low = uCode & 0xFF
+  if (bucket[low] <= SEQ_START) { this.encodeTableSeq[SEQ_START - bucket[low]][DEF_CHAR] = dbcsCode } // There's already a sequence, set a single-char subsequence of it.
+  else if (bucket[low] == UNASSIGNED) { bucket[low] = dbcsCode }
+}
+
+DBCSCodec.prototype._setEncodeSequence = function (seq, dbcsCode) {
+  // Get the root of character tree according to first character of the sequence.
+  var uCode = seq[0]
+  var bucket = this._getEncodeBucket(uCode)
+  var low = uCode & 0xFF
+
+  var node
+  if (bucket[low] <= SEQ_START) {
+    // There's already a sequence with  - use it.
+    node = this.encodeTableSeq[SEQ_START - bucket[low]]
+  } else {
+    // There was no sequence object - allocate a new one.
+    node = {}
+    if (bucket[low] !== UNASSIGNED) node[DEF_CHAR] = bucket[low] // If a char was set before - make it a single-char subsequence.
+    bucket[low] = SEQ_START - this.encodeTableSeq.length
+    this.encodeTableSeq.push(node)
+  }
+
+  // Traverse the character tree, allocating new nodes as needed.
+  for (var j = 1; j < seq.length - 1; j++) {
+    var oldVal = node[uCode]
+    if (typeof oldVal === "object") { node = oldVal } else {
+      node = node[uCode] = {}
+      if (oldVal !== undefined) { node[DEF_CHAR] = oldVal }
+    }
+  }
+
+  // Set the leaf to given dbcsCode.
+  uCode = seq[seq.length - 1]
+  node[uCode] = dbcsCode
+}
+
+DBCSCodec.prototype._fillEncodeTable = function (nodeIdx, prefix, skipEncodeChars) {
+  var node = this.decodeTables[nodeIdx]
+  var hasValues = false
+  var subNodeEmpty = {}
+  for (var i = 0; i < 0x100; i++) {
+    var uCode = node[i]
+    var mbCode = prefix + i
+    if (skipEncodeChars[mbCode]) { continue }
+
+    if (uCode >= 0) {
+      this._setEncodeChar(uCode, mbCode)
+      hasValues = true
+    } else if (uCode <= NODE_START) {
+      var subNodeIdx = NODE_START - uCode
+      if (!subNodeEmpty[subNodeIdx]) {  // Skip empty subtrees (they are too large in gb18030).
+        var newPrefix = (mbCode << 8) >>> 0  // NOTE: '>>> 0' keeps 32-bit num positive.
+        if (this._fillEncodeTable(subNodeIdx, newPrefix, skipEncodeChars)) { hasValues = true } else { subNodeEmpty[subNodeIdx] = true }
+      }
+    } else if (uCode <= SEQ_START) {
+      this._setEncodeSequence(this.decodeTableSeq[SEQ_START - uCode], mbCode)
+      hasValues = true
+    }
+  }
+  return hasValues
+}
+
+// == Encoder ==================================================================
+
+function DBCSEncoder (options, codec) {
+  // Encoder state
+  this.leadSurrogate = -1
+  this.seqObj = undefined
+
+  // Static data
+  this.encodeTable = codec.encodeTable
+  this.encodeTableSeq = codec.encodeTableSeq
+  this.defaultCharSingleByte = codec.defCharSB
+  this.gb18030 = codec.gb18030
+}
+
+DBCSEncoder.prototype.write = function (str) {
+  var newBuf = Buffer.alloc(str.length * (this.gb18030 ? 4 : 3))
+  var leadSurrogate = this.leadSurrogate
+  var seqObj = this.seqObj
+  var nextChar = -1
+  var i = 0; var j = 0
+
+  while (true) {
+    // 0. Get next character.
+    if (nextChar === -1) {
+      if (i == str.length) break
+      var uCode = str.charCodeAt(i++)
+    } else {
+      var uCode = nextChar
+      nextChar = -1
+    }
+
+    // 1. Handle surrogates.
+    if (uCode >= 0xD800 && uCode < 0xE000) { // Char is one of surrogates.
+      if (uCode < 0xDC00) { // We've got lead surrogate.
+        if (leadSurrogate === -1) {
+          leadSurrogate = uCode
+          continue
+        } else {
+          leadSurrogate = uCode
+          // Double lead surrogate found.
+          uCode = UNASSIGNED
+        }
+      } else { // We've got trail surrogate.
+        if (leadSurrogate !== -1) {
+          uCode = 0x10000 + (leadSurrogate - 0xD800) * 0x400 + (uCode - 0xDC00)
+          leadSurrogate = -1
+        } else {
+          // Incomplete surrogate pair - only trail surrogate found.
+          uCode = UNASSIGNED
+        }
+      }
+    } else if (leadSurrogate !== -1) {
+      // Incomplete surrogate pair - only lead surrogate found.
+      nextChar = uCode; uCode = UNASSIGNED // Write an error, then current char.
+      leadSurrogate = -1
+    }
+
+    // 2. Convert uCode character.
+    var dbcsCode = UNASSIGNED
+    if (seqObj !== undefined && uCode != UNASSIGNED) { // We are in the middle of the sequence
+      var resCode = seqObj[uCode]
+      if (typeof resCode === "object") { // Sequence continues.
+        seqObj = resCode
+        continue
+      } else if (typeof resCode === "number") { // Sequence finished. Write it.
+        dbcsCode = resCode
+      } else if (resCode == undefined) { // Current character is not part of the sequence.
+        // Try default character for this sequence
+        resCode = seqObj[DEF_CHAR]
+        if (resCode !== undefined) {
+          dbcsCode = resCode // Found. Write it.
+          nextChar = uCode // Current character will be written too in the next iteration.
+        } else {
+          // TODO: What if we have no default? (resCode == undefined)
+          // Then, we should write first char of the sequence as-is and try the rest recursively.
+          // Didn't do it for now because no encoding has this situation yet.
+          // Currently, just skip the sequence and write current char.
+        }
+      }
+      seqObj = undefined
+    } else if (uCode >= 0) {  // Regular character
+      var subtable = this.encodeTable[uCode >> 8]
+      if (subtable !== undefined) { dbcsCode = subtable[uCode & 0xFF] }
+
+      if (dbcsCode <= SEQ_START) { // Sequence start
+        seqObj = this.encodeTableSeq[SEQ_START - dbcsCode]
+        continue
+      }
+
+      if (dbcsCode == UNASSIGNED && this.gb18030) {
+        // Use GB18030 algorithm to find character(s) to write.
+        var idx = findIdx(this.gb18030.uChars, uCode)
+        if (idx != -1) {
+          var dbcsCode = this.gb18030.gbChars[idx] + (uCode - this.gb18030.uChars[idx])
+          newBuf[j++] = 0x81 + Math.floor(dbcsCode / 12600); dbcsCode = dbcsCode % 12600
+          newBuf[j++] = 0x30 + Math.floor(dbcsCode / 1260); dbcsCode = dbcsCode % 1260
+          newBuf[j++] = 0x81 + Math.floor(dbcsCode / 10); dbcsCode = dbcsCode % 10
+          newBuf[j++] = 0x30 + dbcsCode
+          continue
+        }
+      }
+    }
+
+    // 3. Write dbcsCode character.
+    if (dbcsCode === UNASSIGNED) { dbcsCode = this.defaultCharSingleByte }
+
+    if (dbcsCode < 0x100) {
+      newBuf[j++] = dbcsCode
+    } else if (dbcsCode < 0x10000) {
+      newBuf[j++] = dbcsCode >> 8   // high byte
+      newBuf[j++] = dbcsCode & 0xFF // low byte
+    } else if (dbcsCode < 0x1000000) {
+      newBuf[j++] = dbcsCode >> 16
+      newBuf[j++] = (dbcsCode >> 8) & 0xFF
+      newBuf[j++] = dbcsCode & 0xFF
+    } else {
+      newBuf[j++] = dbcsCode >>> 24
+      newBuf[j++] = (dbcsCode >>> 16) & 0xFF
+      newBuf[j++] = (dbcsCode >>> 8) & 0xFF
+      newBuf[j++] = dbcsCode & 0xFF
+    }
+  }
+
+  this.seqObj = seqObj
+  this.leadSurrogate = leadSurrogate
+  return newBuf.slice(0, j)
+}
+
+DBCSEncoder.prototype.end = function () {
+  if (this.leadSurrogate === -1 && this.seqObj === undefined) { return } // All clean. Most often case.
+
+  var newBuf = Buffer.alloc(10); var j = 0
+
+  if (this.seqObj) { // We're in the sequence.
+    var dbcsCode = this.seqObj[DEF_CHAR]
+    if (dbcsCode !== undefined) { // Write beginning of the sequence.
+      if (dbcsCode < 0x100) {
+        newBuf[j++] = dbcsCode
+      } else {
+        newBuf[j++] = dbcsCode >> 8   // high byte
+        newBuf[j++] = dbcsCode & 0xFF // low byte
+      }
+    } else {
+      // See todo above.
+    }
+    this.seqObj = undefined
+  }
+
+  if (this.leadSurrogate !== -1) {
+    // Incomplete surrogate pair - only lead surrogate found.
+    newBuf[j++] = this.defaultCharSingleByte
+    this.leadSurrogate = -1
+  }
+
+  return newBuf.slice(0, j)
+}
+
+// Export for testing
+DBCSEncoder.prototype.findIdx = findIdx
+
+// == Decoder ==================================================================
+
+function DBCSDecoder (options, codec) {
+  // Decoder state
+  this.nodeIdx = 0
+  this.prevBytes = []
+
+  // Static data
+  this.decodeTables = codec.decodeTables
+  this.decodeTableSeq = codec.decodeTableSeq
+  this.defaultCharUnicode = codec.defaultCharUnicode
+  this.gb18030 = codec.gb18030
+}
+
+DBCSDecoder.prototype.write = function (buf) {
+  var newBuf = Buffer.alloc(buf.length * 2)
+  var nodeIdx = this.nodeIdx
+  var prevBytes = this.prevBytes; var prevOffset = this.prevBytes.length
+  var seqStart = -this.prevBytes.length // idx of the start of current parsed sequence.
+  var uCode
+
+  for (var i = 0, j = 0; i < buf.length; i++) {
+    var curByte = (i >= 0) ? buf[i] : prevBytes[i + prevOffset]
+
+    // Lookup in current trie node.
+    var uCode = this.decodeTables[nodeIdx][curByte]
+
+    if (uCode >= 0) {
+      // Normal character, just use it.
+    } else if (uCode === UNASSIGNED) { // Unknown char.
+      // TODO: Callback with seq.
+      uCode = this.defaultCharUnicode.charCodeAt(0)
+      i = seqStart // Skip one byte ('i' will be incremented by the for loop) and try to parse again.
+    } else if (uCode === GB18030_CODE) {
+      if (i >= 3) {
+        var ptr = (buf[i - 3] - 0x81) * 12600 + (buf[i - 2] - 0x30) * 1260 + (buf[i - 1] - 0x81) * 10 + (curByte - 0x30)
+      } else {
+        var ptr = (prevBytes[i - 3 + prevOffset] - 0x81) * 12600 +
+                          (((i - 2 >= 0) ? buf[i - 2] : prevBytes[i - 2 + prevOffset]) - 0x30) * 1260 +
+                          (((i - 1 >= 0) ? buf[i - 1] : prevBytes[i - 1 + prevOffset]) - 0x81) * 10 +
+                          (curByte - 0x30)
+      }
+      var idx = findIdx(this.gb18030.gbChars, ptr)
+      uCode = this.gb18030.uChars[idx] + ptr - this.gb18030.gbChars[idx]
+    } else if (uCode <= NODE_START) { // Go to next trie node.
+      nodeIdx = NODE_START - uCode
+      continue
+    } else if (uCode <= SEQ_START) { // Output a sequence of chars.
+      var seq = this.decodeTableSeq[SEQ_START - uCode]
+      for (var k = 0; k < seq.length - 1; k++) {
+        uCode = seq[k]
+        newBuf[j++] = uCode & 0xFF
+        newBuf[j++] = uCode >> 8
+      }
+      uCode = seq[seq.length - 1]
+    } else { throw new Error("iconv-lite internal error: invalid decoding table value " + uCode + " at " + nodeIdx + "/" + curByte) }
+
+    // Write the character to buffer, handling higher planes using surrogate pair.
+    if (uCode >= 0x10000) {
+      uCode -= 0x10000
+      var uCodeLead = 0xD800 | (uCode >> 10)
+      newBuf[j++] = uCodeLead & 0xFF
+      newBuf[j++] = uCodeLead >> 8
+
+      uCode = 0xDC00 | (uCode & 0x3FF)
+    }
+    newBuf[j++] = uCode & 0xFF
+    newBuf[j++] = uCode >> 8
+
+    // Reset trie node.
+    nodeIdx = 0; seqStart = i + 1
+  }
+
+  this.nodeIdx = nodeIdx
+  this.prevBytes = (seqStart >= 0)
+    ? Array.prototype.slice.call(buf, seqStart)
+    : prevBytes.slice(seqStart + prevOffset).concat(Array.prototype.slice.call(buf))
+
+  return newBuf.slice(0, j).toString("ucs2")
+}
+
+DBCSDecoder.prototype.end = function () {
+  var ret = ""
+
+  // Try to parse all remaining chars.
+  while (this.prevBytes.length > 0) {
+    // Skip 1 character in the buffer.
+    ret += this.defaultCharUnicode
+    var bytesArr = this.prevBytes.slice(1)
+
+    // Parse remaining as usual.
+    this.prevBytes = []
+    this.nodeIdx = 0
+    if (bytesArr.length > 0) { ret += this.write(bytesArr) }
+  }
+
+  this.prevBytes = []
+  this.nodeIdx = 0
+  return ret
+}
+
+// Binary search for GB18030. Returns largest i such that table[i] <= val.
+function findIdx (table, val) {
+  if (table[0] > val) { return -1 }
+
+  var l = 0; var r = table.length
+  while (l < r - 1) { // always table[l] <= val < table[r]
+    var mid = l + ((r - l + 1) >> 1)
+    if (table[mid] <= val) { l = mid } else { r = mid }
+  }
+  return l
+}
diff --git a/backend/node_modules/raw-body/node_modules/iconv-lite/encodings/dbcs-data.js b/backend/node_modules/raw-body/node_modules/iconv-lite/encodings/dbcs-data.js
new file mode 100644
index 0000000..a3858d4
--- /dev/null
+++ b/backend/node_modules/raw-body/node_modules/iconv-lite/encodings/dbcs-data.js
@@ -0,0 +1,185 @@
+"use strict"
+
+// Description of supported double byte encodings and aliases.
+// Tables are not require()-d until they are needed to speed up library load.
+// require()-s are direct to support Browserify.
+
+module.exports = {
+
+  // == Japanese/ShiftJIS ====================================================
+  // All japanese encodings are based on JIS X set of standards:
+  // JIS X 0201 - Single-byte encoding of ASCII + ¥ + Kana chars at 0xA1-0xDF.
+  // JIS X 0208 - Main set of 6879 characters, placed in 94x94 plane, to be encoded by 2 bytes.
+  //              Has several variations in 1978, 1983, 1990 and 1997.
+  // JIS X 0212 - Supplementary plane of 6067 chars in 94x94 plane. 1990. Effectively dead.
+  // JIS X 0213 - Extension and modern replacement of 0208 and 0212. Total chars: 11233.
+  //              2 planes, first is superset of 0208, second - revised 0212.
+  //              Introduced in 2000, revised 2004. Some characters are in Unicode Plane 2 (0x2xxxx)
+
+  // Byte encodings are:
+  //  * Shift_JIS: Compatible with 0201, uses not defined chars in top half as lead bytes for double-byte
+  //               encoding of 0208. Lead byte ranges: 0x81-0x9F, 0xE0-0xEF; Trail byte ranges: 0x40-0x7E, 0x80-0x9E, 0x9F-0xFC.
+  //               Windows CP932 is a superset of Shift_JIS. Some companies added more chars, notably KDDI.
+  //  * EUC-JP:    Up to 3 bytes per character. Used mostly on *nixes.
+  //               0x00-0x7F       - lower part of 0201
+  //               0x8E, 0xA1-0xDF - upper part of 0201
+  //               (0xA1-0xFE)x2   - 0208 plane (94x94).
+  //               0x8F, (0xA1-0xFE)x2 - 0212 plane (94x94).
+  //  * JIS X 208: 7-bit, direct encoding of 0208. Byte ranges: 0x21-0x7E (94 values). Uncommon.
+  //               Used as-is in ISO2022 family.
+  //  * ISO2022-JP: Stateful encoding, with escape sequences to switch between ASCII,
+  //                0201-1976 Roman, 0208-1978, 0208-1983.
+  //  * ISO2022-JP-1: Adds esc seq for 0212-1990.
+  //  * ISO2022-JP-2: Adds esc seq for GB2313-1980, KSX1001-1992, ISO8859-1, ISO8859-7.
+  //  * ISO2022-JP-3: Adds esc seq for 0201-1976 Kana set, 0213-2000 Planes 1, 2.
+  //  * ISO2022-JP-2004: Adds 0213-2004 Plane 1.
+  //
+  // After JIS X 0213 appeared, Shift_JIS-2004, EUC-JISX0213 and ISO2022-JP-2004 followed, with just changing the planes.
+  //
+  // Overall, it seems that it's a mess :( http://www8.plala.or.jp/tkubota1/unicode-symbols-map2.html
+
+  shiftjis: {
+    type: "_dbcs",
+    table: function () { return require("./tables/shiftjis.json") },
+    encodeAdd: { "\u00a5": 0x5C, "\u203E": 0x7E },
+    encodeSkipVals: [{ from: 0xED40, to: 0xF940 }]
+  },
+  csshiftjis: "shiftjis",
+  mskanji: "shiftjis",
+  sjis: "shiftjis",
+  windows31j: "shiftjis",
+  ms31j: "shiftjis",
+  xsjis: "shiftjis",
+  windows932: "shiftjis",
+  ms932: "shiftjis",
+  932: "shiftjis",
+  cp932: "shiftjis",
+
+  eucjp: {
+    type: "_dbcs",
+    table: function () { return require("./tables/eucjp.json") },
+    encodeAdd: { "\u00a5": 0x5C, "\u203E": 0x7E }
+  },
+
+  // TODO: KDDI extension to Shift_JIS
+  // TODO: IBM CCSID 942 = CP932, but F0-F9 custom chars and other char changes.
+  // TODO: IBM CCSID 943 = Shift_JIS = CP932 with original Shift_JIS lower 128 chars.
+
+  // == Chinese/GBK ==========================================================
+  // http://en.wikipedia.org/wiki/GBK
+  // We mostly implement W3C recommendation: https://www.w3.org/TR/encoding/#gbk-encoder
+
+  // Oldest GB2312 (1981, ~7600 chars) is a subset of CP936
+  gb2312: "cp936",
+  gb231280: "cp936",
+  gb23121980: "cp936",
+  csgb2312: "cp936",
+  csiso58gb231280: "cp936",
+  euccn: "cp936",
+
+  // Microsoft's CP936 is a subset and approximation of GBK.
+  windows936: "cp936",
+  ms936: "cp936",
+  936: "cp936",
+  cp936: {
+    type: "_dbcs",
+    table: function () { return require("./tables/cp936.json") }
+  },
+
+  // GBK (~22000 chars) is an extension of CP936 that added user-mapped chars and some other.
+  gbk: {
+    type: "_dbcs",
+    table: function () { return require("./tables/cp936.json").concat(require("./tables/gbk-added.json")) }
+  },
+  xgbk: "gbk",
+  isoir58: "gbk",
+
+  // GB18030 is an algorithmic extension of GBK.
+  // Main source: https://www.w3.org/TR/encoding/#gbk-encoder
+  // http://icu-project.org/docs/papers/gb18030.html
+  // http://source.icu-project.org/repos/icu/data/trunk/charset/data/xml/gb-18030-2000.xml
+  // http://www.khngai.com/chinese/charmap/tblgbk.php?page=0
+  gb18030: {
+    type: "_dbcs",
+    table: function () { return require("./tables/cp936.json").concat(require("./tables/gbk-added.json")) },
+    gb18030: function () { return require("./tables/gb18030-ranges.json") },
+    encodeSkipVals: [0x80],
+    encodeAdd: { "€": 0xA2E3 }
+  },
+
+  chinese: "gb18030",
+
+  // == Korean ===============================================================
+  // EUC-KR, KS_C_5601 and KS X 1001 are exactly the same.
+  windows949: "cp949",
+  ms949: "cp949",
+  949: "cp949",
+  cp949: {
+    type: "_dbcs",
+    table: function () { return require("./tables/cp949.json") }
+  },
+
+  cseuckr: "cp949",
+  csksc56011987: "cp949",
+  euckr: "cp949",
+  isoir149: "cp949",
+  korean: "cp949",
+  ksc56011987: "cp949",
+  ksc56011989: "cp949",
+  ksc5601: "cp949",
+
+  // == Big5/Taiwan/Hong Kong ================================================
+  // There are lots of tables for Big5 and cp950. Please see the following links for history:
+  // http://moztw.org/docs/big5/  http://www.haible.de/bruno/charsets/conversion-tables/Big5.html
+  // Variations, in roughly number of defined chars:
+  //  * Windows CP 950: Microsoft variant of Big5. Canonical: http://www.unicode.org/Public/MAPPINGS/VENDORS/MICSFT/WINDOWS/CP950.TXT
+  //  * Windows CP 951: Microsoft variant of Big5-HKSCS-2001. Seems to be never public. http://me.abelcheung.org/articles/research/what-is-cp951/
+  //  * Big5-2003 (Taiwan standard) almost superset of cp950.
+  //  * Unicode-at-on (UAO) / Mozilla 1.8. Falling out of use on the Web. Not supported by other browsers.
+  //  * Big5-HKSCS (-2001, -2004, -2008). Hong Kong standard.
+  //    many unicode code points moved from PUA to Supplementary plane (U+2XXXX) over the years.
+  //    Plus, it has 4 combining sequences.
+  //    Seems that Mozilla refused to support it for 10 yrs. https://bugzilla.mozilla.org/show_bug.cgi?id=162431 https://bugzilla.mozilla.org/show_bug.cgi?id=310299
+  //    because big5-hkscs is the only encoding to include astral characters in non-algorithmic way.
+  //    Implementations are not consistent within browsers; sometimes labeled as just big5.
+  //    MS Internet Explorer switches from big5 to big5-hkscs when a patch applied.
+  //    Great discussion & recap of what's going on https://bugzilla.mozilla.org/show_bug.cgi?id=912470#c31
+  //    In the encoder, it might make sense to support encoding old PUA mappings to Big5 bytes seq-s.
+  //    Official spec: http://www.ogcio.gov.hk/en/business/tech_promotion/ccli/terms/doc/2003cmp_2008.txt
+  //                   http://www.ogcio.gov.hk/tc/business/tech_promotion/ccli/terms/doc/hkscs-2008-big5-iso.txt
+  //
+  // Current understanding of how to deal with Big5(-HKSCS) is in the Encoding Standard, http://encoding.spec.whatwg.org/#big5-encoder
+  // Unicode mapping (http://www.unicode.org/Public/MAPPINGS/OBSOLETE/EASTASIA/OTHER/BIG5.TXT) is said to be wrong.
+
+  windows950: "cp950",
+  ms950: "cp950",
+  950: "cp950",
+  cp950: {
+    type: "_dbcs",
+    table: function () { return require("./tables/cp950.json") }
+  },
+
+  // Big5 has many variations and is an extension of cp950. We use Encoding Standard's as a consensus.
+  big5: "big5hkscs",
+  big5hkscs: {
+    type: "_dbcs",
+    table: function () { return require("./tables/cp950.json").concat(require("./tables/big5-added.json")) },
+    encodeSkipVals: [
+      // Although Encoding Standard says we should avoid encoding to HKSCS area (See Step 1 of
+      // https://encoding.spec.whatwg.org/#index-big5-pointer), we still do it to increase compatibility with ICU.
+      // But if a single unicode point can be encoded both as HKSCS and regular Big5, we prefer the latter.
+      0x8e69, 0x8e6f, 0x8e7e, 0x8eab, 0x8eb4, 0x8ecd, 0x8ed0, 0x8f57, 0x8f69, 0x8f6e, 0x8fcb, 0x8ffe,
+      0x906d, 0x907a, 0x90c4, 0x90dc, 0x90f1, 0x91bf, 0x92af, 0x92b0, 0x92b1, 0x92b2, 0x92d1, 0x9447, 0x94ca,
+      0x95d9, 0x96fc, 0x9975, 0x9b76, 0x9b78, 0x9b7b, 0x9bc6, 0x9bde, 0x9bec, 0x9bf6, 0x9c42, 0x9c53, 0x9c62,
+      0x9c68, 0x9c6b, 0x9c77, 0x9cbc, 0x9cbd, 0x9cd0, 0x9d57, 0x9d5a, 0x9dc4, 0x9def, 0x9dfb, 0x9ea9, 0x9eef,
+      0x9efd, 0x9f60, 0x9fcb, 0xa077, 0xa0dc, 0xa0df, 0x8fcc, 0x92c8, 0x9644, 0x96ed,
+
+      // Step 2 of https://encoding.spec.whatwg.org/#index-big5-pointer: Use last pointer for U+2550, U+255E, U+2561, U+256A, U+5341, or U+5345
+      0xa2a4, 0xa2a5, 0xa2a7, 0xa2a6, 0xa2cc, 0xa2ce
+    ]
+  },
+
+  cnbig5: "big5hkscs",
+  csbig5: "big5hkscs",
+  xxbig5: "big5hkscs"
+}
diff --git a/backend/node_modules/raw-body/node_modules/iconv-lite/encodings/index.js b/backend/node_modules/raw-body/node_modules/iconv-lite/encodings/index.js
new file mode 100644
index 0000000..9d90e3c
--- /dev/null
+++ b/backend/node_modules/raw-body/node_modules/iconv-lite/encodings/index.js
@@ -0,0 +1,23 @@
+"use strict"
+
+var mergeModules = require("../lib/helpers/merge-exports")
+
+// Update this array if you add/rename/remove files in this directory.
+// We support Browserify by skipping automatic module discovery and requiring modules directly.
+var modules = [
+  require("./internal"),
+  require("./utf32"),
+  require("./utf16"),
+  require("./utf7"),
+  require("./sbcs-codec"),
+  require("./sbcs-data"),
+  require("./sbcs-data-generated"),
+  require("./dbcs-codec"),
+  require("./dbcs-data")
+]
+
+// Put all encoding/alias/codec definitions to single object and export it.
+for (var i = 0; i < modules.length; i++) {
+  var module = modules[i]
+  mergeModules(exports, module)
+}
diff --git a/backend/node_modules/raw-body/node_modules/iconv-lite/encodings/internal.js b/backend/node_modules/raw-body/node_modules/iconv-lite/encodings/internal.js
new file mode 100644
index 0000000..4e5c3ff
--- /dev/null
+++ b/backend/node_modules/raw-body/node_modules/iconv-lite/encodings/internal.js
@@ -0,0 +1,218 @@
+"use strict"
+var Buffer = require("safer-buffer").Buffer
+
+// Export Node.js internal encodings.
+
+module.exports = {
+  // Encodings
+  utf8: { type: "_internal", bomAware: true },
+  cesu8: { type: "_internal", bomAware: true },
+  unicode11utf8: "utf8",
+
+  ucs2: { type: "_internal", bomAware: true },
+  utf16le: "ucs2",
+
+  binary: { type: "_internal" },
+  base64: { type: "_internal" },
+  hex: { type: "_internal" },
+
+  // Codec.
+  _internal: InternalCodec
+}
+
+// ------------------------------------------------------------------------------
+
+function InternalCodec (codecOptions, iconv) {
+  this.enc = codecOptions.encodingName
+  this.bomAware = codecOptions.bomAware
+
+  if (this.enc === "base64") { this.encoder = InternalEncoderBase64 } else if (this.enc === "utf8") { this.encoder = InternalEncoderUtf8 } else if (this.enc === "cesu8") {
+    this.enc = "utf8" // Use utf8 for decoding.
+    this.encoder = InternalEncoderCesu8
+
+    // Add decoder for versions of Node not supporting CESU-8
+    if (Buffer.from("eda0bdedb2a9", "hex").toString() !== "💩") {
+      this.decoder = InternalDecoderCesu8
+      this.defaultCharUnicode = iconv.defaultCharUnicode
+    }
+  }
+}
+
+InternalCodec.prototype.encoder = InternalEncoder
+InternalCodec.prototype.decoder = InternalDecoder
+
+// ------------------------------------------------------------------------------
+
+// We use node.js internal decoder. Its signature is the same as ours.
+var StringDecoder = require("string_decoder").StringDecoder
+
+function InternalDecoder (options, codec) {
+  this.decoder = new StringDecoder(codec.enc)
+}
+
+InternalDecoder.prototype.write = function (buf) {
+  if (!Buffer.isBuffer(buf)) {
+    buf = Buffer.from(buf)
+  }
+
+  return this.decoder.write(buf)
+}
+
+InternalDecoder.prototype.end = function () {
+  return this.decoder.end()
+}
+
+// ------------------------------------------------------------------------------
+// Encoder is mostly trivial
+
+function InternalEncoder (options, codec) {
+  this.enc = codec.enc
+}
+
+InternalEncoder.prototype.write = function (str) {
+  return Buffer.from(str, this.enc)
+}
+
+InternalEncoder.prototype.end = function () {
+}
+
+// ------------------------------------------------------------------------------
+// Except base64 encoder, which must keep its state.
+
+function InternalEncoderBase64 (options, codec) {
+  this.prevStr = ""
+}
+
+InternalEncoderBase64.prototype.write = function (str) {
+  str = this.prevStr + str
+  var completeQuads = str.length - (str.length % 4)
+  this.prevStr = str.slice(completeQuads)
+  str = str.slice(0, completeQuads)
+
+  return Buffer.from(str, "base64")
+}
+
+InternalEncoderBase64.prototype.end = function () {
+  return Buffer.from(this.prevStr, "base64")
+}
+
+// ------------------------------------------------------------------------------
+// CESU-8 encoder is also special.
+
+function InternalEncoderCesu8 (options, codec) {
+}
+
+InternalEncoderCesu8.prototype.write = function (str) {
+  var buf = Buffer.alloc(str.length * 3); var bufIdx = 0
+  for (var i = 0; i < str.length; i++) {
+    var charCode = str.charCodeAt(i)
+    // Naive implementation, but it works because CESU-8 is especially easy
+    // to convert from UTF-16 (which all JS strings are encoded in).
+    if (charCode < 0x80) { buf[bufIdx++] = charCode } else if (charCode < 0x800) {
+      buf[bufIdx++] = 0xC0 + (charCode >>> 6)
+      buf[bufIdx++] = 0x80 + (charCode & 0x3f)
+    } else { // charCode will always be < 0x10000 in javascript.
+      buf[bufIdx++] = 0xE0 + (charCode >>> 12)
+      buf[bufIdx++] = 0x80 + ((charCode >>> 6) & 0x3f)
+      buf[bufIdx++] = 0x80 + (charCode & 0x3f)
+    }
+  }
+  return buf.slice(0, bufIdx)
+}
+
+InternalEncoderCesu8.prototype.end = function () {
+}
+
+// ------------------------------------------------------------------------------
+// CESU-8 decoder is not implemented in Node v4.0+
+
+function InternalDecoderCesu8 (options, codec) {
+  this.acc = 0
+  this.contBytes = 0
+  this.accBytes = 0
+  this.defaultCharUnicode = codec.defaultCharUnicode
+}
+
+InternalDecoderCesu8.prototype.write = function (buf) {
+  var acc = this.acc; var contBytes = this.contBytes; var accBytes = this.accBytes
+  var res = ""
+  for (var i = 0; i < buf.length; i++) {
+    var curByte = buf[i]
+    if ((curByte & 0xC0) !== 0x80) { // Leading byte
+      if (contBytes > 0) { // Previous code is invalid
+        res += this.defaultCharUnicode
+        contBytes = 0
+      }
+
+      if (curByte < 0x80) { // Single-byte code
+        res += String.fromCharCode(curByte)
+      } else if (curByte < 0xE0) { // Two-byte code
+        acc = curByte & 0x1F
+        contBytes = 1; accBytes = 1
+      } else if (curByte < 0xF0) { // Three-byte code
+        acc = curByte & 0x0F
+        contBytes = 2; accBytes = 1
+      } else { // Four or more are not supported for CESU-8.
+        res += this.defaultCharUnicode
+      }
+    } else { // Continuation byte
+      if (contBytes > 0) { // We're waiting for it.
+        acc = (acc << 6) | (curByte & 0x3f)
+        contBytes--; accBytes++
+        if (contBytes === 0) {
+          // Check for overlong encoding, but support Modified UTF-8 (encoding NULL as C0 80)
+          if (accBytes === 2 && acc < 0x80 && acc > 0) {
+            res += this.defaultCharUnicode
+          } else if (accBytes === 3 && acc < 0x800) {
+            res += this.defaultCharUnicode
+          } else {
+            // Actually add character.
+            res += String.fromCharCode(acc)
+          }
+        }
+      } else { // Unexpected continuation byte
+        res += this.defaultCharUnicode
+      }
+    }
+  }
+  this.acc = acc; this.contBytes = contBytes; this.accBytes = accBytes
+  return res
+}
+
+InternalDecoderCesu8.prototype.end = function () {
+  var res = 0
+  if (this.contBytes > 0) { res += this.defaultCharUnicode }
+  return res
+}
+
+// ------------------------------------------------------------------------------
+// check the chunk boundaries for surrogate pair
+
+function InternalEncoderUtf8 (options, codec) {
+  this.highSurrogate = ""
+}
+
+InternalEncoderUtf8.prototype.write = function (str) {
+  if (this.highSurrogate) {
+    str = this.highSurrogate + str
+    this.highSurrogate = ""
+  }
+
+  if (str.length > 0) {
+    var charCode = str.charCodeAt(str.length - 1)
+    if (charCode >= 0xd800 && charCode < 0xdc00) {
+      this.highSurrogate = str[str.length - 1]
+      str = str.slice(0, str.length - 1)
+    }
+  }
+
+  return Buffer.from(str, this.enc)
+}
+
+InternalEncoderUtf8.prototype.end = function () {
+  if (this.highSurrogate) {
+    var str = this.highSurrogate
+    this.highSurrogate = ""
+    return Buffer.from(str, this.enc)
+  }
+}
diff --git a/backend/node_modules/raw-body/node_modules/iconv-lite/encodings/sbcs-codec.js b/backend/node_modules/raw-body/node_modules/iconv-lite/encodings/sbcs-codec.js
new file mode 100644
index 0000000..0e2fc92
--- /dev/null
+++ b/backend/node_modules/raw-body/node_modules/iconv-lite/encodings/sbcs-codec.js
@@ -0,0 +1,75 @@
+"use strict"
+var Buffer = require("safer-buffer").Buffer
+
+// Single-byte codec. Needs a 'chars' string parameter that contains 256 or 128 chars that
+// correspond to encoded bytes (if 128 - then lower half is ASCII).
+
+exports._sbcs = SBCSCodec
+function SBCSCodec (codecOptions, iconv) {
+  if (!codecOptions) {
+    throw new Error("SBCS codec is called without the data.")
+  }
+
+  // Prepare char buffer for decoding.
+  if (!codecOptions.chars || (codecOptions.chars.length !== 128 && codecOptions.chars.length !== 256)) {
+    throw new Error("Encoding '" + codecOptions.type + "' has incorrect 'chars' (must be of len 128 or 256)")
+  }
+
+  if (codecOptions.chars.length === 128) {
+    var asciiString = ""
+    for (var i = 0; i < 128; i++) {
+      asciiString += String.fromCharCode(i)
+    }
+    codecOptions.chars = asciiString + codecOptions.chars
+  }
+
+  this.decodeBuf = Buffer.from(codecOptions.chars, "ucs2")
+
+  // Encoding buffer.
+  var encodeBuf = Buffer.alloc(65536, iconv.defaultCharSingleByte.charCodeAt(0))
+
+  for (var i = 0; i < codecOptions.chars.length; i++) {
+    encodeBuf[codecOptions.chars.charCodeAt(i)] = i
+  }
+
+  this.encodeBuf = encodeBuf
+}
+
+SBCSCodec.prototype.encoder = SBCSEncoder
+SBCSCodec.prototype.decoder = SBCSDecoder
+
+function SBCSEncoder (options, codec) {
+  this.encodeBuf = codec.encodeBuf
+}
+
+SBCSEncoder.prototype.write = function (str) {
+  var buf = Buffer.alloc(str.length)
+  for (var i = 0; i < str.length; i++) {
+    buf[i] = this.encodeBuf[str.charCodeAt(i)]
+  }
+
+  return buf
+}
+
+SBCSEncoder.prototype.end = function () {
+}
+
+function SBCSDecoder (options, codec) {
+  this.decodeBuf = codec.decodeBuf
+}
+
+SBCSDecoder.prototype.write = function (buf) {
+  // Strings are immutable in JS -> we use ucs2 buffer to speed up computations.
+  var decodeBuf = this.decodeBuf
+  var newBuf = Buffer.alloc(buf.length * 2)
+  var idx1 = 0; var idx2 = 0
+  for (var i = 0; i < buf.length; i++) {
+    idx1 = buf[i] * 2; idx2 = i * 2
+    newBuf[idx2] = decodeBuf[idx1]
+    newBuf[idx2 + 1] = decodeBuf[idx1 + 1]
+  }
+  return newBuf.toString("ucs2")
+}
+
+SBCSDecoder.prototype.end = function () {
+}
diff --git a/backend/node_modules/raw-body/node_modules/iconv-lite/encodings/sbcs-data-generated.js b/backend/node_modules/raw-body/node_modules/iconv-lite/encodings/sbcs-data-generated.js
new file mode 100644
index 0000000..9b48236
--- /dev/null
+++ b/backend/node_modules/raw-body/node_modules/iconv-lite/encodings/sbcs-data-generated.js
@@ -0,0 +1,451 @@
+"use strict";
+
+// Generated data for sbcs codec. Don't edit manually. Regenerate using generation/gen-sbcs.js script.
+module.exports = {
+  "437": "cp437",
+  "737": "cp737",
+  "775": "cp775",
+  "850": "cp850",
+  "852": "cp852",
+  "855": "cp855",
+  "856": "cp856",
+  "857": "cp857",
+  "858": "cp858",
+  "860": "cp860",
+  "861": "cp861",
+  "862": "cp862",
+  "863": "cp863",
+  "864": "cp864",
+  "865": "cp865",
+  "866": "cp866",
+  "869": "cp869",
+  "874": "windows874",
+  "922": "cp922",
+  "1046": "cp1046",
+  "1124": "cp1124",
+  "1125": "cp1125",
+  "1129": "cp1129",
+  "1133": "cp1133",
+  "1161": "cp1161",
+  "1162": "cp1162",
+  "1163": "cp1163",
+  "1250": "windows1250",
+  "1251": "windows1251",
+  "1252": "windows1252",
+  "1253": "windows1253",
+  "1254": "windows1254",
+  "1255": "windows1255",
+  "1256": "windows1256",
+  "1257": "windows1257",
+  "1258": "windows1258",
+  "28591": "iso88591",
+  "28592": "iso88592",
+  "28593": "iso88593",
+  "28594": "iso88594",
+  "28595": "iso88595",
+  "28596": "iso88596",
+  "28597": "iso88597",
+  "28598": "iso88598",
+  "28599": "iso88599",
+  "28600": "iso885910",
+  "28601": "iso885911",
+  "28603": "iso885913",
+  "28604": "iso885914",
+  "28605": "iso885915",
+  "28606": "iso885916",
+  "windows874": {
+    "type": "_sbcs",
+    "chars": "€����…�����������‘’“”•–—�������� กขฃคฅฆงจฉชซฌญฎฏฐฑฒณดตถทธนบปผฝพฟภมยรฤลฦวศษสหฬอฮฯะัาำิีึืฺุู����฿เแโใไๅๆ็่้๊๋์ํ๎๏๐๑๒๓๔๕๖๗๘๙๚๛����"
+  },
+  "win874": "windows874",
+  "cp874": "windows874",
+  "windows1250": {
+    "type": "_sbcs",
+    "chars": "€�‚�„…†‡�‰Š‹ŚŤŽŹ�‘’“”•–—�™š›śťžź ˇ˘Ł¤Ą¦§¨©Ş«¬­®Ż°±˛ł´µ¶·¸ąş»Ľ˝ľżŔÁÂĂÄĹĆÇČÉĘËĚÍÎĎĐŃŇÓÔŐÖ×ŘŮÚŰÜÝŢßŕáâăäĺćçčéęëěíîďđńňóôőö÷řůúűüýţ˙"
+  },
+  "win1250": "windows1250",
+  "cp1250": "windows1250",
+  "windows1251": {
+    "type": "_sbcs",
+    "chars": "ЂЃ‚ѓ„…†‡€‰Љ‹ЊЌЋЏђ‘’“”•–—�™љ›њќћџ ЎўЈ¤Ґ¦§Ё©Є«¬­®Ї°±Ііґµ¶·ё№є»јЅѕїАБВГДЕЖЗИЙКЛМНОПРСТУФХЦЧШЩЪЫЬЭЮЯабвгдежзийклмнопрстуфхцчшщъыьэюя"
+  },
+  "win1251": "windows1251",
+  "cp1251": "windows1251",
+  "windows1252": {
+    "type": "_sbcs",
+    "chars": "€�‚ƒ„…†‡ˆ‰Š‹Œ�Ž��‘’“”•–—˜™š›œ�žŸ ¡¢£¤¥¦§¨©ª«¬­®¯°±²³´µ¶·¸¹º»¼½¾¿ÀÁÂÃÄÅÆÇÈÉÊËÌÍÎÏÐÑÒÓÔÕÖ×ØÙÚÛÜÝÞßàáâãäåæçèéêëìíîïðñòóôõö÷øùúûüýþÿ"
+  },
+  "win1252": "windows1252",
+  "cp1252": "windows1252",
+  "windows1253": {
+    "type": "_sbcs",
+    "chars": "€�‚ƒ„…†‡�‰�‹�����‘’“”•–—�™�›���� ΅Ά£¤¥¦§¨©�«¬­®―°±²³΄µ¶·ΈΉΊ»Ό½ΎΏΐΑΒΓΔΕΖΗΘΙΚΛΜΝΞΟΠΡ�ΣΤΥΦΧΨΩΪΫάέήίΰαβγδεζηθικλμνξοπρςστυφχψωϊϋόύώ�"
+  },
+  "win1253": "windows1253",
+  "cp1253": "windows1253",
+  "windows1254": {
+    "type": "_sbcs",
+    "chars": "€�‚ƒ„…†‡ˆ‰Š‹Œ����‘’“”•–—˜™š›œ��Ÿ ¡¢£¤¥¦§¨©ª«¬­®¯°±²³´µ¶·¸¹º»¼½¾¿ÀÁÂÃÄÅÆÇÈÉÊËÌÍÎÏĞÑÒÓÔÕÖ×ØÙÚÛÜİŞßàáâãäåæçèéêëìíîïğñòóôõö÷øùúûüışÿ"
+  },
+  "win1254": "windows1254",
+  "cp1254": "windows1254",
+  "windows1255": {
+    "type": "_sbcs",
+    "chars": "€�‚ƒ„…†‡ˆ‰�‹�����‘’“”•–—˜™�›���� ¡¢£₪¥¦§¨©×«¬­®¯°±²³´µ¶·¸¹÷»¼½¾¿ְֱֲֳִֵֶַָֹֺֻּֽ־ֿ׀ׁׂ׃װױײ׳״�������אבגדהוזחטיךכלםמןנסעףפץצקרשת��‎‏�"
+  },
+  "win1255": "windows1255",
+  "cp1255": "windows1255",
+  "windows1256": {
+    "type": "_sbcs",
+    "chars": "€پ‚ƒ„…†‡ˆ‰ٹ‹Œچژڈگ‘’“”•–—ک™ڑ›œ‌‍ں ،¢£¤¥¦§¨©ھ«¬­®¯°±²³´µ¶·¸¹؛»¼½¾؟ہءآأؤإئابةتثجحخدذرزسشصض×طظعغـفقكàلâمنهوçèéêëىيîïًٌٍَôُِ÷ّùْûü‎‏ے"
+  },
+  "win1256": "windows1256",
+  "cp1256": "windows1256",
+  "windows1257": {
+    "type": "_sbcs",
+    "chars": "€�‚�„…†‡�‰�‹�¨ˇ¸�‘’“”•–—�™�›�¯˛� �¢£¤�¦§Ø©Ŗ«¬­®Æ°±²³´µ¶·ø¹ŗ»¼½¾æĄĮĀĆÄÅĘĒČÉŹĖĢĶĪĻŠŃŅÓŌÕÖ×ŲŁŚŪÜŻŽßąįāćäåęēčéźėģķīļšńņóōõö÷ųłśūüżž˙"
+  },
+  "win1257": "windows1257",
+  "cp1257": "windows1257",
+  "windows1258": {
+    "type": "_sbcs",
+    "chars": "€�‚ƒ„…†‡ˆ‰�‹Œ����‘’“”•–—˜™�›œ��Ÿ ¡¢£¤¥¦§¨©ª«¬­®¯°±²³´µ¶·¸¹º»¼½¾¿ÀÁÂĂÄÅÆÇÈÉÊË̀ÍÎÏĐÑ̉ÓÔƠÖ×ØÙÚÛÜỮßàáâăäåæçèéêë́íîïđṇ̃óôơö÷øùúûüư₫ÿ"
+  },
+  "win1258": "windows1258",
+  "cp1258": "windows1258",
+  "iso88591": {
+    "type": "_sbcs",
+    "chars": "€‚ƒ„…†‡ˆ‰Š‹ŒŽ‘’“”•–—˜™š›œžŸ ¡¢£¤¥¦§¨©ª«¬­®¯°±²³´µ¶·¸¹º»¼½¾¿ÀÁÂÃÄÅÆÇÈÉÊËÌÍÎÏÐÑÒÓÔÕÖ×ØÙÚÛÜÝÞßàáâãäåæçèéêëìíîïðñòóôõö÷øùúûüýþÿ"
+  },
+  "cp28591": "iso88591",
+  "iso88592": {
+    "type": "_sbcs",
+    "chars": "€‚ƒ„…†‡ˆ‰Š‹ŒŽ‘’“”•–—˜™š›œžŸ Ą˘Ł¤ĽŚ§¨ŠŞŤŹ­ŽŻ°ą˛ł´ľśˇ¸šşťź˝žżŔÁÂĂÄĹĆÇČÉĘËĚÍÎĎĐŃŇÓÔŐÖ×ŘŮÚŰÜÝŢßŕáâăäĺćçčéęëěíîďđńňóôőö÷řůúűüýţ˙"
+  },
+  "cp28592": "iso88592",
+  "iso88593": {
+    "type": "_sbcs",
+    "chars": "€‚ƒ„…†‡ˆ‰Š‹ŒŽ‘’“”•–—˜™š›œžŸ Ħ˘£¤�Ĥ§¨İŞĞĴ­�Ż°ħ²³´µĥ·¸ışğĵ½�żÀÁÂ�ÄĊĈÇÈÉÊËÌÍÎÏ�ÑÒÓÔĠÖ×ĜÙÚÛÜŬŜßàáâ�äċĉçèéêëìíîï�ñòóôġö÷ĝùúûüŭŝ˙"
+  },
+  "cp28593": "iso88593",
+  "iso88594": {
+    "type": "_sbcs",
+    "chars": "€‚ƒ„…†‡ˆ‰Š‹ŒŽ‘’“”•–—˜™š›œžŸ ĄĸŖ¤ĨĻ§¨ŠĒĢŦ­Ž¯°ą˛ŗ´ĩļˇ¸šēģŧŊžŋĀÁÂÃÄÅÆĮČÉĘËĖÍÎĪĐŅŌĶÔÕÖ×ØŲÚÛÜŨŪßāáâãäåæįčéęëėíîīđņōķôõö÷øųúûüũū˙"
+  },
+  "cp28594": "iso88594",
+  "iso88595": {
+    "type": "_sbcs",
+    "chars": "€‚ƒ„…†‡ˆ‰Š‹ŒŽ‘’“”•–—˜™š›œžŸ ЁЂЃЄЅІЇЈЉЊЋЌ­ЎЏАБВГДЕЖЗИЙКЛМНОПРСТУФХЦЧШЩЪЫЬЭЮЯабвгдежзийклмнопрстуфхцчшщъыьэюя№ёђѓєѕіїјљњћќ§ўџ"
+  },
+  "cp28595": "iso88595",
+  "iso88596": {
+    "type": "_sbcs",
+    "chars": "€‚ƒ„…†‡ˆ‰Š‹ŒŽ‘’“”•–—˜™š›œžŸ ���¤�������،­�������������؛���؟�ءآأؤإئابةتثجحخدذرزسشصضطظعغ�����ـفقكلمنهوىيًٌٍَُِّْ�������������"
+  },
+  "cp28596": "iso88596",
+  "iso88597": {
+    "type": "_sbcs",
+    "chars": "€‚ƒ„…†‡ˆ‰Š‹ŒŽ‘’“”•–—˜™š›œžŸ ‘’£€₯¦§¨©ͺ«¬­�―°±²³΄΅Ά·ΈΉΊ»Ό½ΎΏΐΑΒΓΔΕΖΗΘΙΚΛΜΝΞΟΠΡ�ΣΤΥΦΧΨΩΪΫάέήίΰαβγδεζηθικλμνξοπρςστυφχψωϊϋόύώ�"
+  },
+  "cp28597": "iso88597",
+  "iso88598": {
+    "type": "_sbcs",
+    "chars": "€‚ƒ„…†‡ˆ‰Š‹ŒŽ‘’“”•–—˜™š›œžŸ �¢£¤¥¦§¨©×«¬­®¯°±²³´µ¶·¸¹÷»¼½¾��������������������������������‗אבגדהוזחטיךכלםמןנסעףפץצקרשת��‎‏�"
+  },
+  "cp28598": "iso88598",
+  "iso88599": {
+    "type": "_sbcs",
+    "chars": "€‚ƒ„…†‡ˆ‰Š‹ŒŽ‘’“”•–—˜™š›œžŸ ¡¢£¤¥¦§¨©ª«¬­®¯°±²³´µ¶·¸¹º»¼½¾¿ÀÁÂÃÄÅÆÇÈÉÊËÌÍÎÏĞÑÒÓÔÕÖ×ØÙÚÛÜİŞßàáâãäåæçèéêëìíîïğñòóôõö÷øùúûüışÿ"
+  },
+  "cp28599": "iso88599",
+  "iso885910": {
+    "type": "_sbcs",
+    "chars": "€‚ƒ„…†‡ˆ‰Š‹ŒŽ‘’“”•–—˜™š›œžŸ ĄĒĢĪĨĶ§ĻĐŠŦŽ­ŪŊ°ąēģīĩķ·ļđšŧž―ūŋĀÁÂÃÄÅÆĮČÉĘËĖÍÎÏÐŅŌÓÔÕÖŨØŲÚÛÜÝÞßāáâãäåæįčéęëėíîïðņōóôõöũøųúûüýþĸ"
+  },
+  "cp28600": "iso885910",
+  "iso885911": {
+    "type": "_sbcs",
+    "chars": "€‚ƒ„…†‡ˆ‰Š‹ŒŽ‘’“”•–—˜™š›œžŸ กขฃคฅฆงจฉชซฌญฎฏฐฑฒณดตถทธนบปผฝพฟภมยรฤลฦวศษสหฬอฮฯะัาำิีึืฺุู����฿เแโใไๅๆ็่้๊๋์ํ๎๏๐๑๒๓๔๕๖๗๘๙๚๛����"
+  },
+  "cp28601": "iso885911",
+  "iso885913": {
+    "type": "_sbcs",
+    "chars": "€‚ƒ„…†‡ˆ‰Š‹ŒŽ‘’“”•–—˜™š›œžŸ ”¢£¤„¦§Ø©Ŗ«¬­®Æ°±²³“µ¶·ø¹ŗ»¼½¾æĄĮĀĆÄÅĘĒČÉŹĖĢĶĪĻŠŃŅÓŌÕÖ×ŲŁŚŪÜŻŽßąįāćäåęēčéźėģķīļšńņóōõö÷ųłśūüżž’"
+  },
+  "cp28603": "iso885913",
+  "iso885914": {
+    "type": "_sbcs",
+    "chars": "€‚ƒ„…†‡ˆ‰Š‹ŒŽ‘’“”•–—˜™š›œžŸ Ḃḃ£ĊċḊ§Ẁ©ẂḋỲ­®ŸḞḟĠġṀṁ¶ṖẁṗẃṠỳẄẅṡÀÁÂÃÄÅÆÇÈÉÊËÌÍÎÏŴÑÒÓÔÕÖṪØÙÚÛÜÝŶßàáâãäåæçèéêëìíîïŵñòóôõöṫøùúûüýŷÿ"
+  },
+  "cp28604": "iso885914",
+  "iso885915": {
+    "type": "_sbcs",
+    "chars": "€‚ƒ„…†‡ˆ‰Š‹ŒŽ‘’“”•–—˜™š›œžŸ ¡¢£€¥Š§š©ª«¬­®¯°±²³Žµ¶·ž¹º»ŒœŸ¿ÀÁÂÃÄÅÆÇÈÉÊËÌÍÎÏÐÑÒÓÔÕÖ×ØÙÚÛÜÝÞßàáâãäåæçèéêëìíîïðñòóôõö÷øùúûüýþÿ"
+  },
+  "cp28605": "iso885915",
+  "iso885916": {
+    "type": "_sbcs",
+    "chars": "€‚ƒ„…†‡ˆ‰Š‹ŒŽ‘’“”•–—˜™š›œžŸ ĄąŁ€„Š§š©Ș«Ź­źŻ°±ČłŽ”¶·žčș»ŒœŸżÀÁÂĂÄĆÆÇÈÉÊËÌÍÎÏĐŃÒÓÔŐÖŚŰÙÚÛÜĘȚßàáâăäćæçèéêëìíîïđńòóôőöśűùúûüęțÿ"
+  },
+  "cp28606": "iso885916",
+  "cp437": {
+    "type": "_sbcs",
+    "chars": "ÇüéâäàåçêëèïîìÄÅÉæÆôöòûùÿÖÜ¢£¥₧ƒáíóúñѪº¿⌐¬½¼¡«»░▒▓│┤╡╢╖╕╣║╗╝╜╛┐└┴┬├─┼╞╟╚╔╩╦╠═╬╧╨╤╥╙╘╒╓╫╪┘┌█▄▌▐▀αßΓπΣσµτΦΘΩδ∞φε∩≡±≥≤⌠⌡÷≈°∙·√ⁿ²■ "
+  },
+  "ibm437": "cp437",
+  "csibm437": "cp437",
+  "cp737": {
+    "type": "_sbcs",
+    "chars": "ΑΒΓΔΕΖΗΘΙΚΛΜΝΞΟΠΡΣΤΥΦΧΨΩαβγδεζηθικλμνξοπρσςτυφχψ░▒▓│┤╡╢╖╕╣║╗╝╜╛┐└┴┬├─┼╞╟╚╔╩╦╠═╬╧╨╤╥╙╘╒╓╫╪┘┌█▄▌▐▀ωάέήϊίόύϋώΆΈΉΊΌΎΏ±≥≤ΪΫ÷≈°∙·√ⁿ²■ "
+  },
+  "ibm737": "cp737",
+  "csibm737": "cp737",
+  "cp775": {
+    "type": "_sbcs",
+    "chars": "ĆüéāäģåćłēŖŗīŹÄÅÉæÆōöĢ¢ŚśÖÜø£ØפĀĪóŻżź”¦©®¬½¼Ł«»░▒▓│┤ĄČĘĖ╣║╗╝ĮŠ┐└┴┬├─┼ŲŪ╚╔╩╦╠═╬Žąčęėįšųūž┘┌█▄▌▐▀ÓßŌŃõÕµńĶķĻļņĒŅ’­±“¾¶§÷„°∙·¹³²■ "
+  },
+  "ibm775": "cp775",
+  "csibm775": "cp775",
+  "cp850": {
+    "type": "_sbcs",
+    "chars": "ÇüéâäàåçêëèïîìÄÅÉæÆôöòûùÿÖÜø£Ø׃áíóúñѪº¿®¬½¼¡«»░▒▓│┤ÁÂÀ©╣║╗╝¢¥┐└┴┬├─┼ãÃ╚╔╩╦╠═╬¤ðÐÊËÈıÍÎÏ┘┌█▄¦Ì▀ÓßÔÒõÕµþÞÚÛÙýݯ´­±‗¾¶§÷¸°¨·¹³²■ "
+  },
+  "ibm850": "cp850",
+  "csibm850": "cp850",
+  "cp852": {
+    "type": "_sbcs",
+    "chars": "ÇüéâäůćçłëŐőîŹÄĆÉĹĺôöĽľŚśÖÜŤťŁ×čáíóúĄąŽžĘ꬟Ⱥ«»░▒▓│┤ÁÂĚŞ╣║╗╝Żż┐└┴┬├─┼Ăă╚╔╩╦╠═╬¤đĐĎËďŇÍÎě┘┌█▄ŢŮ▀ÓßÔŃńňŠšŔÚŕŰýÝţ´­˝˛ˇ˘§÷¸°¨˙űŘř■ "
+  },
+  "ibm852": "cp852",
+  "csibm852": "cp852",
+  "cp855": {
+    "type": "_sbcs",
+    "chars": "ђЂѓЃёЁєЄѕЅіІїЇјЈљЉњЊћЋќЌўЎџЏюЮъЪаАбБцЦдДеЕфФгГ«»░▒▓│┤хХиИ╣║╗╝йЙ┐└┴┬├─┼кК╚╔╩╦╠═╬¤лЛмМнНоОп┘┌█▄Пя▀ЯрРсСтТуУжЖвВьЬ№­ыЫзЗшШэЭщЩчЧ§■ "
+  },
+  "ibm855": "cp855",
+  "csibm855": "cp855",
+  "cp856": {
+    "type": "_sbcs",
+    "chars": "אבגדהוזחטיךכלםמןנסעףפץצקרשת�£�×����������®¬½¼�«»░▒▓│┤���©╣║╗╝¢¥┐└┴┬├─┼��╚╔╩╦╠═╬¤���������┘┌█▄¦�▀������µ�������¯´­±‗¾¶§÷¸°¨·¹³²■ "
+  },
+  "ibm856": "cp856",
+  "csibm856": "cp856",
+  "cp857": {
+    "type": "_sbcs",
+    "chars": "ÇüéâäàåçêëèïîıÄÅÉæÆôöòûùİÖÜø£ØŞşáíóúñÑĞ𿮬½¼¡«»░▒▓│┤ÁÂÀ©╣║╗╝¢¥┐└┴┬├─┼ãÃ╚╔╩╦╠═╬¤ºªÊËÈ�ÍÎÏ┘┌█▄¦Ì▀ÓßÔÒõÕµ�×ÚÛÙìÿ¯´­±�¾¶§÷¸°¨·¹³²■ "
+  },
+  "ibm857": "cp857",
+  "csibm857": "cp857",
+  "cp858": {
+    "type": "_sbcs",
+    "chars": "ÇüéâäàåçêëèïîìÄÅÉæÆôöòûùÿÖÜø£Ø׃áíóúñѪº¿®¬½¼¡«»░▒▓│┤ÁÂÀ©╣║╗╝¢¥┐└┴┬├─┼ãÃ╚╔╩╦╠═╬¤ðÐÊËÈ€ÍÎÏ┘┌█▄¦Ì▀ÓßÔÒõÕµþÞÚÛÙýݯ´­±‗¾¶§÷¸°¨·¹³²■ "
+  },
+  "ibm858": "cp858",
+  "csibm858": "cp858",
+  "cp860": {
+    "type": "_sbcs",
+    "chars": "ÇüéâãàÁçêÊèÍÔìÃÂÉÀÈôõòÚùÌÕÜ¢£Ù₧ÓáíóúñѪº¿Ò¬½¼¡«»░▒▓│┤╡╢╖╕╣║╗╝╜╛┐└┴┬├─┼╞╟╚╔╩╦╠═╬╧╨╤╥╙╘╒╓╫╪┘┌█▄▌▐▀αßΓπΣσµτΦΘΩδ∞φε∩≡±≥≤⌠⌡÷≈°∙·√ⁿ²■ "
+  },
+  "ibm860": "cp860",
+  "csibm860": "cp860",
+  "cp861": {
+    "type": "_sbcs",
+    "chars": "ÇüéâäàåçêëèÐðÞÄÅÉæÆôöþûÝýÖÜø£Ø₧ƒáíóúÁÍÓÚ¿⌐¬½¼¡«»░▒▓│┤╡╢╖╕╣║╗╝╜╛┐└┴┬├─┼╞╟╚╔╩╦╠═╬╧╨╤╥╙╘╒╓╫╪┘┌█▄▌▐▀αßΓπΣσµτΦΘΩδ∞φε∩≡±≥≤⌠⌡÷≈°∙·√ⁿ²■ "
+  },
+  "ibm861": "cp861",
+  "csibm861": "cp861",
+  "cp862": {
+    "type": "_sbcs",
+    "chars": "אבגדהוזחטיךכלםמןנסעףפץצקרשת¢£¥₧ƒáíóúñѪº¿⌐¬½¼¡«»░▒▓│┤╡╢╖╕╣║╗╝╜╛┐└┴┬├─┼╞╟╚╔╩╦╠═╬╧╨╤╥╙╘╒╓╫╪┘┌█▄▌▐▀αßΓπΣσµτΦΘΩδ∞φε∩≡±≥≤⌠⌡÷≈°∙·√ⁿ²■ "
+  },
+  "ibm862": "cp862",
+  "csibm862": "cp862",
+  "cp863": {
+    "type": "_sbcs",
+    "chars": "ÇüéâÂà¶çêëèïî‗À§ÉÈÊôËÏûù¤ÔÜ¢£ÙÛƒ¦´óú¨¸³¯Î⌐¬½¼¾«»░▒▓│┤╡╢╖╕╣║╗╝╜╛┐└┴┬├─┼╞╟╚╔╩╦╠═╬╧╨╤╥╙╘╒╓╫╪┘┌█▄▌▐▀αßΓπΣσµτΦΘΩδ∞φε∩≡±≥≤⌠⌡÷≈°∙·√ⁿ²■ "
+  },
+  "ibm863": "cp863",
+  "csibm863": "cp863",
+  "cp864": {
+    "type": "_sbcs",
+    "chars": "\u0000\u0001\u0002\u0003\u0004\u0005\u0006\u0007\b\t\n\u000b\f\r\u000e\u000f\u0010\u0011\u0012\u0013\u0014\u0015\u0016\u0017\u0018\u0019\u001a\u001b\u001c\u001d\u001e\u001f !\"#$٪&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\\]^_`abcdefghijklmnopqrstuvwxyz{|}~°·∙√▒─│┼┤┬├┴┐┌└┘β∞φ±½¼≈«»ﻷﻸ��ﻻﻼ� ­ﺂ£¤ﺄ��ﺎﺏﺕﺙ،ﺝﺡﺥ٠١٢٣٤٥٦٧٨٩ﻑ؛ﺱﺵﺹ؟¢ﺀﺁﺃﺅﻊﺋﺍﺑﺓﺗﺛﺟﺣﺧﺩﺫﺭﺯﺳﺷﺻﺿﻁﻅﻋﻏ¦¬÷×ﻉـﻓﻗﻛﻟﻣﻧﻫﻭﻯﻳﺽﻌﻎﻍﻡﹽّﻥﻩﻬﻰﻲﻐﻕﻵﻶﻝﻙﻱ■�"
+  },
+  "ibm864": "cp864",
+  "csibm864": "cp864",
+  "cp865": {
+    "type": "_sbcs",
+    "chars": "ÇüéâäàåçêëèïîìÄÅÉæÆôöòûùÿÖÜø£Ø₧ƒáíóúñѪº¿⌐¬½¼¡«¤░▒▓│┤╡╢╖╕╣║╗╝╜╛┐└┴┬├─┼╞╟╚╔╩╦╠═╬╧╨╤╥╙╘╒╓╫╪┘┌█▄▌▐▀αßΓπΣσµτΦΘΩδ∞φε∩≡±≥≤⌠⌡÷≈°∙·√ⁿ²■ "
+  },
+  "ibm865": "cp865",
+  "csibm865": "cp865",
+  "cp866": {
+    "type": "_sbcs",
+    "chars": "АБВГДЕЖЗИЙКЛМНОПРСТУФХЦЧШЩЪЫЬЭЮЯабвгдежзийклмноп░▒▓│┤╡╢╖╕╣║╗╝╜╛┐└┴┬├─┼╞╟╚╔╩╦╠═╬╧╨╤╥╙╘╒╓╫╪┘┌█▄▌▐▀рстуфхцчшщъыьэюяЁёЄєЇїЎў°∙·√№¤■ "
+  },
+  "ibm866": "cp866",
+  "csibm866": "cp866",
+  "cp869": {
+    "type": "_sbcs",
+    "chars": "������Ά�·¬¦‘’Έ―ΉΊΪΌ��ΎΫ©Ώ²³ά£έήίϊΐόύΑΒΓΔΕΖΗ½ΘΙ«»░▒▓│┤ΚΛΜΝ╣║╗╝ΞΟ┐└┴┬├─┼ΠΡ╚╔╩╦╠═╬ΣΤΥΦΧΨΩαβγ┘┌█▄δε▀ζηθικλμνξοπρσςτ΄­±υφχ§ψ΅°¨ωϋΰώ■ "
+  },
+  "ibm869": "cp869",
+  "csibm869": "cp869",
+  "cp922": {
+    "type": "_sbcs",
+    "chars": "€‚ƒ„…†‡ˆ‰Š‹ŒŽ‘’“”•–—˜™š›œžŸ ¡¢£¤¥¦§¨©ª«¬­®‾°±²³´µ¶·¸¹º»¼½¾¿ÀÁÂÃÄÅÆÇÈÉÊËÌÍÎÏŠÑÒÓÔÕÖ×ØÙÚÛÜÝŽßàáâãäåæçèéêëìíîïšñòóôõö÷øùúûüýžÿ"
+  },
+  "ibm922": "cp922",
+  "csibm922": "cp922",
+  "cp1046": {
+    "type": "_sbcs",
+    "chars": "ﺈ×÷ﹱˆ■│─┐┌└┘ﹹﹻﹽﹿﹷﺊﻰﻳﻲﻎﻏﻐﻶﻸﻺﻼ ¤ﺋﺑﺗﺛﺟﺣ،­ﺧﺳ٠١٢٣٤٥٦٧٨٩ﺷ؛ﺻﺿﻊ؟ﻋءآأؤإئابةتثجحخدذرزسشصضطﻇعغﻌﺂﺄﺎﻓـفقكلمنهوىيًٌٍَُِّْﻗﻛﻟﻵﻷﻹﻻﻣﻧﻬﻩ�"
+  },
+  "ibm1046": "cp1046",
+  "csibm1046": "cp1046",
+  "cp1124": {
+    "type": "_sbcs",
+    "chars": "€‚ƒ„…†‡ˆ‰Š‹ŒŽ‘’“”•–—˜™š›œžŸ ЁЂҐЄЅІЇЈЉЊЋЌ­ЎЏАБВГДЕЖЗИЙКЛМНОПРСТУФХЦЧШЩЪЫЬЭЮЯабвгдежзийклмнопрстуфхцчшщъыьэюя№ёђґєѕіїјљњћќ§ўџ"
+  },
+  "ibm1124": "cp1124",
+  "csibm1124": "cp1124",
+  "cp1125": {
+    "type": "_sbcs",
+    "chars": "АБВГДЕЖЗИЙКЛМНОПРСТУФХЦЧШЩЪЫЬЭЮЯабвгдежзийклмноп░▒▓│┤╡╢╖╕╣║╗╝╜╛┐└┴┬├─┼╞╟╚╔╩╦╠═╬╧╨╤╥╙╘╒╓╫╪┘┌█▄▌▐▀рстуфхцчшщъыьэюяЁёҐґЄєІіЇї·√№¤■ "
+  },
+  "ibm1125": "cp1125",
+  "csibm1125": "cp1125",
+  "cp1129": {
+    "type": "_sbcs",
+    "chars": "€‚ƒ„…†‡ˆ‰Š‹ŒŽ‘’“”•–—˜™š›œžŸ ¡¢£¤¥¦§œ©ª«¬­®¯°±²³Ÿµ¶·Œ¹º»¼½¾¿ÀÁÂĂÄÅÆÇÈÉÊË̀ÍÎÏĐÑ̉ÓÔƠÖ×ØÙÚÛÜỮßàáâăäåæçèéêë́íîïđṇ̃óôơö÷øùúûüư₫ÿ"
+  },
+  "ibm1129": "cp1129",
+  "csibm1129": "cp1129",
+  "cp1133": {
+    "type": "_sbcs",
+    "chars": "€‚ƒ„…†‡ˆ‰Š‹ŒŽ‘’“”•–—˜™š›œžŸ ກຂຄງຈສຊຍດຕຖທນບປຜຝພຟມຢຣລວຫອຮ���ຯະາຳິີຶືຸູຼັົຽ���ເແໂໃໄ່້໊໋໌ໍໆ�ໜໝ₭����������������໐໑໒໓໔໕໖໗໘໙��¢¬¦�"
+  },
+  "ibm1133": "cp1133",
+  "csibm1133": "cp1133",
+  "cp1161": {
+    "type": "_sbcs",
+    "chars": "��������������������������������่กขฃคฅฆงจฉชซฌญฎฏฐฑฒณดตถทธนบปผฝพฟภมยรฤลฦวศษสหฬอฮฯะัาำิีึืฺุู้๊๋€฿เแโใไๅๆ็่้๊๋์ํ๎๏๐๑๒๓๔๕๖๗๘๙๚๛¢¬¦ "
+  },
+  "ibm1161": "cp1161",
+  "csibm1161": "cp1161",
+  "cp1162": {
+    "type": "_sbcs",
+    "chars": "€‚ƒ„…†‡ˆ‰Š‹ŒŽ‘’“”•–—˜™š›œžŸ กขฃคฅฆงจฉชซฌญฎฏฐฑฒณดตถทธนบปผฝพฟภมยรฤลฦวศษสหฬอฮฯะัาำิีึืฺุู����฿เแโใไๅๆ็่้๊๋์ํ๎๏๐๑๒๓๔๕๖๗๘๙๚๛����"
+  },
+  "ibm1162": "cp1162",
+  "csibm1162": "cp1162",
+  "cp1163": {
+    "type": "_sbcs",
+    "chars": "€‚ƒ„…†‡ˆ‰Š‹ŒŽ‘’“”•–—˜™š›œžŸ ¡¢£€¥¦§œ©ª«¬­®¯°±²³Ÿµ¶·Œ¹º»¼½¾¿ÀÁÂĂÄÅÆÇÈÉÊË̀ÍÎÏĐÑ̉ÓÔƠÖ×ØÙÚÛÜỮßàáâăäåæçèéêë́íîïđṇ̃óôơö÷øùúûüư₫ÿ"
+  },
+  "ibm1163": "cp1163",
+  "csibm1163": "cp1163",
+  "maccroatian": {
+    "type": "_sbcs",
+    "chars": "ÄÅÇÉÑÖÜáàâäãåçéèêëíìîïñóòôöõúùûü†°¢£§•¶ß®Š™´¨≠ŽØ∞±≤≥∆µ∂∑∏š∫ªºΩžø¿¡¬√ƒ≈Ć«Č… ÀÃÕŒœĐ—“”‘’÷◊�©⁄¤‹›Æ»–·‚„‰ÂćÁčÈÍÎÏÌÓÔđÒÚÛÙıˆ˜¯πË˚¸Êæˇ"
+  },
+  "maccyrillic": {
+    "type": "_sbcs",
+    "chars": "АБВГДЕЖЗИЙКЛМНОПРСТУФХЦЧШЩЪЫЬЭЮЯ†°¢£§•¶І®©™Ђђ≠Ѓѓ∞±≤≥іµ∂ЈЄєЇїЉљЊњјЅ¬√ƒ≈∆«»… ЋћЌќѕ–—“”‘’÷„ЎўЏџ№Ёёяабвгдежзийклмнопрстуфхцчшщъыьэю¤"
+  },
+  "macgreek": {
+    "type": "_sbcs",
+    "chars": "Ĺ²É³ÖÜ΅àâä΄¨çéèê룙î‰ôö¦­ùûü†ΓΔΘΛΞΠß®©ΣΪ§≠°·Α±≤≥¥ΒΕΖΗΙΚΜΦΫΨΩάΝ¬ΟΡ≈Τ«»… ΥΧΆΈœ–―“”‘’÷ΉΊΌΎέήίόΏύαβψδεφγηιξκλμνοπώρστθωςχυζϊϋΐΰ�"
+  },
+  "maciceland": {
+    "type": "_sbcs",
+    "chars": "ÄÅÇÉÑÖÜáàâäãåçéèêëíìîïñóòôöõúùûüÝ°¢£§•¶ß®©™´¨≠ÆØ∞±≤≥¥µ∂∑∏π∫ªºΩæø¿¡¬√ƒ≈∆«»… ÀÃÕŒœ–—“”‘’÷◊ÿŸ⁄¤ÐðÞþý·‚„‰ÂÊÁËÈÍÎÏÌÓÔ�ÒÚÛÙıˆ˜¯˘˙˚¸˝˛ˇ"
+  },
+  "macroman": {
+    "type": "_sbcs",
+    "chars": "ÄÅÇÉÑÖÜáàâäãåçéèêëíìîïñóòôöõúùûü†°¢£§•¶ß®©™´¨≠ÆØ∞±≤≥¥µ∂∑∏π∫ªºΩæø¿¡¬√ƒ≈∆«»… ÀÃÕŒœ–—“”‘’÷◊ÿŸ⁄¤‹›fifl‡·‚„‰ÂÊÁËÈÍÎÏÌÓÔ�ÒÚÛÙıˆ˜¯˘˙˚¸˝˛ˇ"
+  },
+  "macromania": {
+    "type": "_sbcs",
+    "chars": "ÄÅÇÉÑÖÜáàâäãåçéèêëíìîïñóòôöõúùûü†°¢£§•¶ß®©™´¨≠ĂŞ∞±≤≥¥µ∂∑∏π∫ªºΩăş¿¡¬√ƒ≈∆«»… ÀÃÕŒœ–—“”‘’÷◊ÿŸ⁄¤‹›Ţţ‡·‚„‰ÂÊÁËÈÍÎÏÌÓÔ�ÒÚÛÙıˆ˜¯˘˙˚¸˝˛ˇ"
+  },
+  "macthai": {
+    "type": "_sbcs",
+    "chars": "«»…“”�•‘’� กขฃคฅฆงจฉชซฌญฎฏฐฑฒณดตถทธนบปผฝพฟภมยรฤลฦวศษสหฬอฮฯะัาำิีึืฺุู​–—฿เแโใไๅๆ็่้๊๋์ํ™๏๐๑๒๓๔๕๖๗๘๙®©����"
+  },
+  "macturkish": {
+    "type": "_sbcs",
+    "chars": "ÄÅÇÉÑÖÜáàâäãåçéèêëíìîïñóòôöõúùûü†°¢£§•¶ß®©™´¨≠ÆØ∞±≤≥¥µ∂∑∏π∫ªºΩæø¿¡¬√ƒ≈∆«»… ÀÃÕŒœ–—“”‘’÷◊ÿŸĞğİıŞş‡·‚„‰ÂÊÁËÈÍÎÏÌÓÔ�ÒÚÛÙ�ˆ˜¯˘˙˚¸˝˛ˇ"
+  },
+  "macukraine": {
+    "type": "_sbcs",
+    "chars": "АБВГДЕЖЗИЙКЛМНОПРСТУФХЦЧШЩЪЫЬЭЮЯ†°Ґ£§•¶І®©™Ђђ≠Ѓѓ∞±≤≥іµґЈЄєЇїЉљЊњјЅ¬√ƒ≈∆«»… ЋћЌќѕ–—“”‘’÷„ЎўЏџ№Ёёяабвгдежзийклмнопрстуфхцчшщъыьэю¤"
+  },
+  "koi8r": {
+    "type": "_sbcs",
+    "chars": "─│┌┐└┘├┤┬┴┼▀▄█▌▐░▒▓⌠■∙√≈≤≥ ⌡°²·÷═║╒ё╓╔╕╖╗╘╙╚╛╜╝╞╟╠╡Ё╢╣╤╥╦╧╨╩╪╫╬©юабцдефгхийклмнопярстужвьызшэщчъЮАБЦДЕФГХИЙКЛМНОПЯРСТУЖВЬЫЗШЭЩЧЪ"
+  },
+  "koi8u": {
+    "type": "_sbcs",
+    "chars": "─│┌┐└┘├┤┬┴┼▀▄█▌▐░▒▓⌠■∙√≈≤≥ ⌡°²·÷═║╒ёє╔ії╗╘╙╚╛ґ╝╞╟╠╡ЁЄ╣ІЇ╦╧╨╩╪Ґ╬©юабцдефгхийклмнопярстужвьызшэщчъЮАБЦДЕФГХИЙКЛМНОПЯРСТУЖВЬЫЗШЭЩЧЪ"
+  },
+  "koi8ru": {
+    "type": "_sbcs",
+    "chars": "─│┌┐└┘├┤┬┴┼▀▄█▌▐░▒▓⌠■∙√≈≤≥ ⌡°²·÷═║╒ёє╔ії╗╘╙╚╛ґў╞╟╠╡ЁЄ╣ІЇ╦╧╨╩╪ҐЎ©юабцдефгхийклмнопярстужвьызшэщчъЮАБЦДЕФГХИЙКЛМНОПЯРСТУЖВЬЫЗШЭЩЧЪ"
+  },
+  "koi8t": {
+    "type": "_sbcs",
+    "chars": "қғ‚Ғ„…†‡�‰ҳ‹ҲҷҶ�Қ‘’“”•–—�™�›�����ӯӮё¤ӣ¦§���«¬­®�°±²Ё�Ӣ¶·�№�»���©юабцдефгхийклмнопярстужвьызшэщчъЮАБЦДЕФГХИЙКЛМНОПЯРСТУЖВЬЫЗШЭЩЧЪ"
+  },
+  "armscii8": {
+    "type": "_sbcs",
+    "chars": "€‚ƒ„…†‡ˆ‰Š‹ŒŽ‘’“”•–—˜™š›œžŸ �և։)(»«—.՝,-֊…՜՛՞ԱաԲբԳգԴդԵեԶզԷէԸըԹթԺժԻիԼլԽխԾծԿկՀհՁձՂղՃճՄմՅյՆնՇշՈոՉչՊպՋջՌռՍսՎվՏտՐրՑցՒւՓփՔքՕօՖֆ՚�"
+  },
+  "rk1048": {
+    "type": "_sbcs",
+    "chars": "ЂЃ‚ѓ„…†‡€‰Љ‹ЊҚҺЏђ‘’“”•–—�™љ›њқһџ ҰұӘ¤Ө¦§Ё©Ғ«¬­®Ү°±Ііөµ¶·ё№ғ»әҢңүАБВГДЕЖЗИЙКЛМНОПРСТУФХЦЧШЩЪЫЬЭЮЯабвгдежзийклмнопрстуфхцчшщъыьэюя"
+  },
+  "tcvn": {
+    "type": "_sbcs",
+    "chars": "\u0000ÚỤ\u0003ỪỬỮ\u0007\b\t\n\u000b\f\r\u000e\u000f\u0010ỨỰỲỶỸÝỴ\u0018\u0019\u001a\u001b\u001c\u001d\u001e\u001f !\"#$%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\\]^_`abcdefghijklmnopqrstuvwxyz{|}~ÀẢÃÁẠẶẬÈẺẼÉẸỆÌỈĨÍỊÒỎÕÓỌỘỜỞỠỚỢÙỦŨ ĂÂÊÔƠƯĐăâêôơưđẶ̀̀̉̃́àảãáạẲằẳẵắẴẮẦẨẪẤỀặầẩẫấậèỂẻẽéẹềểễếệìỉỄẾỒĩíịòỔỏõóọồổỗốộờởỡớợùỖủũúụừửữứựỳỷỹýỵỐ"
+  },
+  "georgianacademy": {
+    "type": "_sbcs",
+    "chars": "€‚ƒ„…†‡ˆ‰Š‹ŒŽ‘’“”•–—˜™š›œžŸ ¡¢£¤¥¦§¨©ª«¬­®¯°±²³´µ¶·¸¹º»¼½¾¿აბგდევზთიკლმნოპჟრსტუფქღყშჩცძწჭხჯჰჱჲჳჴჵჶçèéêëìíîïðñòóôõö÷øùúûüýþÿ"
+  },
+  "georgianps": {
+    "type": "_sbcs",
+    "chars": "€‚ƒ„…†‡ˆ‰Š‹ŒŽ‘’“”•–—˜™š›œžŸ ¡¢£¤¥¦§¨©ª«¬­®¯°±²³´µ¶·¸¹º»¼½¾¿აბგდევზჱთიკლმნჲოპჟრსტჳუფქღყშჩცძწჭხჴჯჰჵæçèéêëìíîïðñòóôõö÷øùúûüýþÿ"
+  },
+  "pt154": {
+    "type": "_sbcs",
+    "chars": "ҖҒӮғ„…ҶҮҲүҠӢҢҚҺҸҗ‘’“”•–—ҳҷҡӣңқһҹ ЎўЈӨҘҰ§Ё©Ә«¬ӯ®Ҝ°ұІіҙө¶·ё№ә»јҪҫҝАБВГДЕЖЗИЙКЛМНОПРСТУФХЦЧШЩЪЫЬЭЮЯабвгдежзийклмнопрстуфхцчшщъыьэюя"
+  },
+  "viscii": {
+    "type": "_sbcs",
+    "chars": "\u0000\u0001Ẳ\u0003\u0004ẴẪ\u0007\b\t\n\u000b\f\r\u000e\u000f\u0010\u0011\u0012\u0013Ỷ\u0015\u0016\u0017\u0018Ỹ\u001a\u001b\u001c\u001dỴ\u001f !\"#$%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\\]^_`abcdefghijklmnopqrstuvwxyz{|}~ẠẮẰẶẤẦẨẬẼẸẾỀỂỄỆỐỒỔỖỘỢỚỜỞỊỎỌỈỦŨỤỲÕắằặấầẩậẽẹếềểễệốồổỗỠƠộờởịỰỨỪỬơớƯÀÁÂÃẢĂẳẵÈÉÊẺÌÍĨỳĐứÒÓÔạỷừửÙÚỹỵÝỡưàáâãảăữẫèéêẻìíĩỉđựòóôõỏọụùúũủýợỮ"
+  },
+  "iso646cn": {
+    "type": "_sbcs",
+    "chars": "\u0000\u0001\u0002\u0003\u0004\u0005\u0006\u0007\b\t\n\u000b\f\r\u000e\u000f\u0010\u0011\u0012\u0013\u0014\u0015\u0016\u0017\u0018\u0019\u001a\u001b\u001c\u001d\u001e\u001f !\"#¥%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\\]^_`abcdefghijklmnopqrstuvwxyz{|}‾��������������������������������������������������������������������������������������������������������������������������������"
+  },
+  "iso646jp": {
+    "type": "_sbcs",
+    "chars": "\u0000\u0001\u0002\u0003\u0004\u0005\u0006\u0007\b\t\n\u000b\f\r\u000e\u000f\u0010\u0011\u0012\u0013\u0014\u0015\u0016\u0017\u0018\u0019\u001a\u001b\u001c\u001d\u001e\u001f !\"#$%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[¥]^_`abcdefghijklmnopqrstuvwxyz{|}‾��������������������������������������������������������������������������������������������������������������������������������"
+  },
+  "hproman8": {
+    "type": "_sbcs",
+    "chars": "€‚ƒ„…†‡ˆ‰Š‹ŒŽ‘’“”•–—˜™š›œžŸ ÀÂÈÊËÎÏ´ˋˆ¨˜ÙÛ₤¯Ýý°ÇçÑñ¡¿¤£¥§ƒ¢âêôûáéóúàèòùäëöüÅîØÆåíøæÄìÖÜÉïßÔÁÃãÐðÍÌÓÒÕõŠšÚŸÿÞþ·µ¶¾—¼½ªº«■»±�"
+  },
+  "macintosh": {
+    "type": "_sbcs",
+    "chars": "ÄÅÇÉÑÖÜáàâäãåçéèêëíìîïñóòôöõúùûü†°¢£§•¶ß®©™´¨≠ÆØ∞±≤≥¥µ∂∑∏π∫ªºΩæø¿¡¬√ƒ≈∆«»… ÀÃÕŒœ–—“”‘’÷◊ÿŸ⁄¤‹›fifl‡·‚„‰ÂÊÁËÈÍÎÏÌÓÔ�ÒÚÛÙıˆ˜¯˘˙˚¸˝˛ˇ"
+  },
+  "ascii": {
+    "type": "_sbcs",
+    "chars": "��������������������������������������������������������������������������������������������������������������������������������"
+  },
+  "tis620": {
+    "type": "_sbcs",
+    "chars": "���������������������������������กขฃคฅฆงจฉชซฌญฎฏฐฑฒณดตถทธนบปผฝพฟภมยรฤลฦวศษสหฬอฮฯะัาำิีึืฺุู����฿เแโใไๅๆ็่้๊๋์ํ๎๏๐๑๒๓๔๕๖๗๘๙๚๛����"
+  }
+}
\ No newline at end of file
diff --git a/backend/node_modules/raw-body/node_modules/iconv-lite/encodings/sbcs-data.js b/backend/node_modules/raw-body/node_modules/iconv-lite/encodings/sbcs-data.js
new file mode 100644
index 0000000..d8f8e17
--- /dev/null
+++ b/backend/node_modules/raw-body/node_modules/iconv-lite/encodings/sbcs-data.js
@@ -0,0 +1,178 @@
+"use strict"
+
+// Manually added data to be used by sbcs codec in addition to generated one.
+
+module.exports = {
+  // Not supported by iconv, not sure why.
+  10029: "maccenteuro",
+  maccenteuro: {
+    type: "_sbcs",
+    chars: "ÄĀāÉĄÖÜáąČäčĆć鏟ĎíďĒēĖóėôöõúĚěü†°Ę£§•¶ß®©™ę¨≠ģĮįĪ≤≥īĶ∂∑łĻļĽľĹĺŅņѬ√ńŇ∆«»… ňŐÕőŌ–—“”‘’÷◊ōŔŕŘ‹›řŖŗŠ‚„šŚśÁŤťÍŽžŪÓÔūŮÚůŰűŲųÝýķŻŁżĢˇ"
+  },
+
+  808: "cp808",
+  ibm808: "cp808",
+  cp808: {
+    type: "_sbcs",
+    chars: "АБВГДЕЖЗИЙКЛМНОПРСТУФХЦЧШЩЪЫЬЭЮЯабвгдежзийклмноп░▒▓│┤╡╢╖╕╣║╗╝╜╛┐└┴┬├─┼╞╟╚╔╩╦╠═╬╧╨╤╥╙╘╒╓╫╪┘┌█▄▌▐▀рстуфхцчшщъыьэюяЁёЄєЇїЎў°∙·√№€■ "
+  },
+
+  mik: {
+    type: "_sbcs",
+    chars: "АБВГДЕЖЗИЙКЛМНОПРСТУФХЦЧШЩЪЫЬЭЮЯабвгдежзийклмнопрстуфхцчшщъыьэюя└┴┬├─┼╣║╚╔╩╦╠═╬┐░▒▓│┤№§╗╝┘┌█▄▌▐▀αßΓπΣσµτΦΘΩδ∞φε∩≡±≥≤⌠⌡÷≈°∙·√ⁿ²■ "
+  },
+
+  cp720: {
+    type: "_sbcs",
+    chars: "\x80\x81éâ\x84à\x86çêëèïî\x8d\x8e\x8f\x90\u0651\u0652ô¤ـûùءآأؤ£إئابةتثجحخدذرزسشص«»░▒▓│┤╡╢╖╕╣║╗╝╜╛┐└┴┬├─┼╞╟╚╔╩╦╠═╬╧╨╤╥╙╘╒╓╫╪┘┌█▄▌▐▀ضطظعغفµقكلمنهوىي≡\u064b\u064c\u064d\u064e\u064f\u0650≈°∙·√ⁿ²■\u00a0"
+  },
+
+  // Aliases of generated encodings.
+  ascii8bit: "ascii",
+  usascii: "ascii",
+  ansix34: "ascii",
+  ansix341968: "ascii",
+  ansix341986: "ascii",
+  csascii: "ascii",
+  cp367: "ascii",
+  ibm367: "ascii",
+  isoir6: "ascii",
+  iso646us: "ascii",
+  iso646irv: "ascii",
+  us: "ascii",
+
+  latin1: "iso88591",
+  latin2: "iso88592",
+  latin3: "iso88593",
+  latin4: "iso88594",
+  latin5: "iso88599",
+  latin6: "iso885910",
+  latin7: "iso885913",
+  latin8: "iso885914",
+  latin9: "iso885915",
+  latin10: "iso885916",
+
+  csisolatin1: "iso88591",
+  csisolatin2: "iso88592",
+  csisolatin3: "iso88593",
+  csisolatin4: "iso88594",
+  csisolatincyrillic: "iso88595",
+  csisolatinarabic: "iso88596",
+  csisolatingreek: "iso88597",
+  csisolatinhebrew: "iso88598",
+  csisolatin5: "iso88599",
+  csisolatin6: "iso885910",
+
+  l1: "iso88591",
+  l2: "iso88592",
+  l3: "iso88593",
+  l4: "iso88594",
+  l5: "iso88599",
+  l6: "iso885910",
+  l7: "iso885913",
+  l8: "iso885914",
+  l9: "iso885915",
+  l10: "iso885916",
+
+  isoir14: "iso646jp",
+  isoir57: "iso646cn",
+  isoir100: "iso88591",
+  isoir101: "iso88592",
+  isoir109: "iso88593",
+  isoir110: "iso88594",
+  isoir144: "iso88595",
+  isoir127: "iso88596",
+  isoir126: "iso88597",
+  isoir138: "iso88598",
+  isoir148: "iso88599",
+  isoir157: "iso885910",
+  isoir166: "tis620",
+  isoir179: "iso885913",
+  isoir199: "iso885914",
+  isoir203: "iso885915",
+  isoir226: "iso885916",
+
+  cp819: "iso88591",
+  ibm819: "iso88591",
+
+  cyrillic: "iso88595",
+
+  arabic: "iso88596",
+  arabic8: "iso88596",
+  ecma114: "iso88596",
+  asmo708: "iso88596",
+
+  greek: "iso88597",
+  greek8: "iso88597",
+  ecma118: "iso88597",
+  elot928: "iso88597",
+
+  hebrew: "iso88598",
+  hebrew8: "iso88598",
+
+  turkish: "iso88599",
+  turkish8: "iso88599",
+
+  thai: "iso885911",
+  thai8: "iso885911",
+
+  celtic: "iso885914",
+  celtic8: "iso885914",
+  isoceltic: "iso885914",
+
+  tis6200: "tis620",
+  tis62025291: "tis620",
+  tis62025330: "tis620",
+
+  10000: "macroman",
+  10006: "macgreek",
+  10007: "maccyrillic",
+  10079: "maciceland",
+  10081: "macturkish",
+
+  cspc8codepage437: "cp437",
+  cspc775baltic: "cp775",
+  cspc850multilingual: "cp850",
+  cspcp852: "cp852",
+  cspc862latinhebrew: "cp862",
+  cpgr: "cp869",
+
+  msee: "cp1250",
+  mscyrl: "cp1251",
+  msansi: "cp1252",
+  msgreek: "cp1253",
+  msturk: "cp1254",
+  mshebr: "cp1255",
+  msarab: "cp1256",
+  winbaltrim: "cp1257",
+
+  cp20866: "koi8r",
+  20866: "koi8r",
+  ibm878: "koi8r",
+  cskoi8r: "koi8r",
+
+  cp21866: "koi8u",
+  21866: "koi8u",
+  ibm1168: "koi8u",
+
+  strk10482002: "rk1048",
+
+  tcvn5712: "tcvn",
+  tcvn57121: "tcvn",
+
+  gb198880: "iso646cn",
+  cn: "iso646cn",
+
+  csiso14jisc6220ro: "iso646jp",
+  jisc62201969ro: "iso646jp",
+  jp: "iso646jp",
+
+  cshproman8: "hproman8",
+  r8: "hproman8",
+  roman8: "hproman8",
+  xroman8: "hproman8",
+  ibm1051: "hproman8",
+
+  mac: "macintosh",
+  csmacintosh: "macintosh"
+}
diff --git a/backend/node_modules/raw-body/node_modules/iconv-lite/encodings/tables/big5-added.json b/backend/node_modules/raw-body/node_modules/iconv-lite/encodings/tables/big5-added.json
new file mode 100644
index 0000000..3c3d3c2
--- /dev/null
+++ b/backend/node_modules/raw-body/node_modules/iconv-lite/encodings/tables/big5-added.json
@@ -0,0 +1,122 @@
+[
+["8740","䏰䰲䘃䖦䕸𧉧䵷䖳𧲱䳢𧳅㮕䜶䝄䱇䱀𤊿𣘗𧍒𦺋𧃒䱗𪍑䝏䗚䲅𧱬䴇䪤䚡𦬣爥𥩔𡩣𣸆𣽡晍囻"],
+["8767","綕夝𨮹㷴霴𧯯寛𡵞媤㘥𩺰嫑宷峼杮薓𩥅瑡璝㡵𡵓𣚞𦀡㻬"],
+["87a1","𥣞㫵竼龗𤅡𨤍𣇪𠪊𣉞䌊蒄龖鐯䤰蘓墖靊鈘秐稲晠権袝瑌篅枂稬剏遆㓦珄𥶹瓆鿇垳䤯呌䄱𣚎堘穲𧭥讏䚮𦺈䆁𥶙箮𢒼鿈𢓁𢓉𢓌鿉蔄𣖻䂴鿊䓡𪷿拁灮鿋"],
+["8840","㇀",4,"𠄌㇅𠃑𠃍㇆㇇𠃋𡿨㇈𠃊㇉㇊㇋㇌𠄎㇍㇎ĀÁǍÀĒÉĚÈŌÓǑÒ࿿Ê̄Ế࿿Ê̌ỀÊāáǎàɑēéěèīíǐìōóǒòūúǔùǖǘǚ"],
+["88a1","ǜü࿿ê̄ế࿿ê̌ềêɡ⏚⏛"],
+["8940","𪎩𡅅"],
+["8943","攊"],
+["8946","丽滝鵎釟"],
+["894c","𧜵撑会伨侨兖兴农凤务动医华发变团声处备夲头学实実岚庆总斉柾栄桥济炼电纤纬纺织经统缆缷艺苏药视设询车轧轮"],
+["89a1","琑糼緍楆竉刧"],
+["89ab","醌碸酞肼"],
+["89b0","贋胶𠧧"],
+["89b5","肟黇䳍鷉鸌䰾𩷶𧀎鸊𪄳㗁"],
+["89c1","溚舾甙"],
+["89c5","䤑马骏龙禇𨑬𡷊𠗐𢫦两亁亀亇亿仫伷㑌侽㹈倃傈㑽㒓㒥円夅凛凼刅争剹劐匧㗇厩㕑厰㕓参吣㕭㕲㚁咓咣咴咹哐哯唘唣唨㖘唿㖥㖿嗗㗅"],
+["8a40","𧶄唥"],
+["8a43","𠱂𠴕𥄫喐𢳆㧬𠍁蹆𤶸𩓥䁓𨂾睺𢰸㨴䟕𨅝𦧲𤷪擝𠵼𠾴𠳕𡃴撍蹾𠺖𠰋𠽤𢲩𨉖𤓓"],
+["8a64","𠵆𩩍𨃩䟴𤺧𢳂骲㩧𩗴㿭㔆𥋇𩟔𧣈𢵄鵮頕"],
+["8a76","䏙𦂥撴哣𢵌𢯊𡁷㧻𡁯"],
+["8aa1","𦛚𦜖𧦠擪𥁒𠱃蹨𢆡𨭌𠜱"],
+["8aac","䠋𠆩㿺塳𢶍"],
+["8ab2","𤗈𠓼𦂗𠽌𠶖啹䂻䎺"],
+["8abb","䪴𢩦𡂝膪飵𠶜捹㧾𢝵跀嚡摼㹃"],
+["8ac9","𪘁𠸉𢫏𢳉"],
+["8ace","𡃈𣧂㦒㨆𨊛㕸𥹉𢃇噒𠼱𢲲𩜠㒼氽𤸻"],
+["8adf","𧕴𢺋𢈈𪙛𨳍𠹺𠰴𦠜羓𡃏𢠃𢤹㗻𥇣𠺌𠾍𠺪㾓𠼰𠵇𡅏𠹌"],
+["8af6","𠺫𠮩𠵈𡃀𡄽㿹𢚖搲𠾭"],
+["8b40","𣏴𧘹𢯎𠵾𠵿𢱑𢱕㨘𠺘𡃇𠼮𪘲𦭐𨳒𨶙𨳊閪哌苄喹"],
+["8b55","𩻃鰦骶𧝞𢷮煀腭胬尜𦕲脴㞗卟𨂽醶𠻺𠸏𠹷𠻻㗝𤷫㘉𠳖嚯𢞵𡃉𠸐𠹸𡁸𡅈𨈇𡑕𠹹𤹐𢶤婔𡀝𡀞𡃵𡃶垜𠸑"],
+["8ba1","𧚔𨋍𠾵𠹻𥅾㜃𠾶𡆀𥋘𪊽𤧚𡠺𤅷𨉼墙剨㘚𥜽箲孨䠀䬬鼧䧧鰟鮍𥭴𣄽嗻㗲嚉丨夂𡯁屮靑𠂆乛亻㔾尣彑忄㣺扌攵歺氵氺灬爫丬犭𤣩罒礻糹罓𦉪㓁"],
+["8bde","𦍋耂肀𦘒𦥑卝衤见𧢲讠贝钅镸长门𨸏韦页风飞饣𩠐鱼鸟黄歯龜丷𠂇阝户钢"],
+["8c40","倻淾𩱳龦㷉袏𤅎灷峵䬠𥇍㕙𥴰愢𨨲辧釶熑朙玺𣊁𪄇㲋𡦀䬐磤琂冮𨜏䀉橣𪊺䈣蘏𠩯稪𩥇𨫪靕灍匤𢁾鏴盙𨧣龧矝亣俰傼丯众龨吴綋墒壐𡶶庒庙忂𢜒斋"],
+["8ca1","𣏹椙橃𣱣泿"],
+["8ca7","爀𤔅玌㻛𤨓嬕璹讃𥲤𥚕窓篬糃繬苸薗龩袐龪躹龫迏蕟駠鈡龬𨶹𡐿䁱䊢娚"],
+["8cc9","顨杫䉶圽"],
+["8cce","藖𤥻芿𧄍䲁𦵴嵻𦬕𦾾龭龮宖龯曧繛湗秊㶈䓃𣉖𢞖䎚䔶"],
+["8ce6","峕𣬚諹屸㴒𣕑嵸龲煗䕘𤃬𡸣䱷㥸㑊𠆤𦱁諌侴𠈹妿腬顖𩣺弻"],
+["8d40","𠮟"],
+["8d42","𢇁𨥭䄂䚻𩁹㼇龳𪆵䃸㟖䛷𦱆䅼𨚲𧏿䕭㣔𥒚䕡䔛䶉䱻䵶䗪㿈𤬏㙡䓞䒽䇭崾嵈嵖㷼㠏嶤嶹㠠㠸幂庽弥徃㤈㤔㤿㥍惗愽峥㦉憷憹懏㦸戬抐拥挘㧸嚱"],
+["8da1","㨃揢揻搇摚㩋擀崕嘡龟㪗斆㪽旿晓㫲暒㬢朖㭂枤栀㭘桊梄㭲㭱㭻椉楃牜楤榟榅㮼槖㯝橥橴橱檂㯬檙㯲檫檵櫔櫶殁毁毪汵沪㳋洂洆洦涁㳯涤涱渕渘温溆𨧀溻滢滚齿滨滩漤漴㵆𣽁澁澾㵪㵵熷岙㶊瀬㶑灐灔灯灿炉𠌥䏁㗱𠻘"],
+["8e40","𣻗垾𦻓焾𥟠㙎榢𨯩孴穉𥣡𩓙穥穽𥦬窻窰竂竃燑𦒍䇊竚竝竪䇯咲𥰁笋筕笩𥌎𥳾箢筯莜𥮴𦱿篐萡箒箸𥴠㶭𥱥蒒篺簆簵𥳁籄粃𤢂粦晽𤕸糉糇糦籴糳糵糎"],
+["8ea1","繧䔝𦹄絝𦻖璍綉綫焵綳緒𤁗𦀩緤㴓緵𡟹緥𨍭縝𦄡𦅚繮纒䌫鑬縧罀罁罇礶𦋐駡羗𦍑羣𡙡𠁨䕜𣝦䔃𨌺翺𦒉者耈耝耨耯𪂇𦳃耻耼聡𢜔䦉𦘦𣷣𦛨朥肧𨩈脇脚墰𢛶汿𦒘𤾸擧𡒊舘𡡞橓𤩥𤪕䑺舩𠬍𦩒𣵾俹𡓽蓢荢𦬊𤦧𣔰𡝳𣷸芪椛芳䇛"],
+["8f40","蕋苐茚𠸖𡞴㛁𣅽𣕚艻苢茘𣺋𦶣𦬅𦮗𣗎㶿茝嗬莅䔋𦶥莬菁菓㑾𦻔橗蕚㒖𦹂𢻯葘𥯤葱㷓䓤檧葊𣲵祘蒨𦮖𦹷𦹃蓞萏莑䒠蒓蓤𥲑䉀𥳀䕃蔴嫲𦺙䔧蕳䔖枿蘖"],
+["8fa1","𨘥𨘻藁𧂈蘂𡖂𧃍䕫䕪蘨㙈𡢢号𧎚虾蝱𪃸蟮𢰧螱蟚蠏噡虬桖䘏衅衆𧗠𣶹𧗤衞袜䙛袴袵揁装睷𧜏覇覊覦覩覧覼𨨥觧𧤤𧪽誜瞓釾誐𧩙竩𧬺𣾏䜓𧬸煼謌謟𥐰𥕥謿譌譍誩𤩺讐讛誯𡛟䘕衏貛𧵔𧶏貫㜥𧵓賖𧶘𧶽贒贃𡤐賛灜贑𤳉㻐起"],
+["9040","趩𨀂𡀔𤦊㭼𨆼𧄌竧躭躶軃鋔輙輭𨍥𨐒辥錃𪊟𠩐辳䤪𨧞𨔽𣶻廸𣉢迹𪀔𨚼𨔁𢌥㦀𦻗逷𨔼𧪾遡𨕬𨘋邨𨜓郄𨛦邮都酧㫰醩釄粬𨤳𡺉鈎沟鉁鉢𥖹銹𨫆𣲛𨬌𥗛"],
+["90a1","𠴱錬鍫𨫡𨯫炏嫃𨫢𨫥䥥鉄𨯬𨰹𨯿鍳鑛躼閅閦鐦閠濶䊹𢙺𨛘𡉼𣸮䧟氜陻隖䅬隣𦻕懚隶磵𨫠隽双䦡𦲸𠉴𦐐𩂯𩃥𤫑𡤕𣌊霱虂霶䨏䔽䖅𤫩灵孁霛靜𩇕靗孊𩇫靟鐥僐𣂷𣂼鞉鞟鞱鞾韀韒韠𥑬韮琜𩐳響韵𩐝𧥺䫑頴頳顋顦㬎𧅵㵑𠘰𤅜"],
+["9140","𥜆飊颷飈飇䫿𦴧𡛓喰飡飦飬鍸餹𤨩䭲𩡗𩤅駵騌騻騐驘𥜥㛄𩂱𩯕髠髢𩬅髴䰎鬔鬭𨘀倴鬴𦦨㣃𣁽魐魀𩴾婅𡡣鮎𤉋鰂鯿鰌𩹨鷔𩾷𪆒𪆫𪃡𪄣𪇟鵾鶃𪄴鸎梈"],
+["91a1","鷄𢅛𪆓𪈠𡤻𪈳鴹𪂹𪊴麐麕麞麢䴴麪麯𤍤黁㭠㧥㴝伲㞾𨰫鼂鼈䮖鐤𦶢鼗鼖鼹嚟嚊齅馸𩂋韲葿齢齩竜龎爖䮾𤥵𤦻煷𤧸𤍈𤩑玞𨯚𡣺禟𨥾𨸶鍩鏳𨩄鋬鎁鏋𨥬𤒹爗㻫睲穃烐𤑳𤏸煾𡟯炣𡢾𣖙㻇𡢅𥐯𡟸㜢𡛻𡠹㛡𡝴𡣑𥽋㜣𡛀坛𤨥𡏾𡊨"],
+["9240","𡏆𡒶蔃𣚦蔃葕𤦔𧅥𣸱𥕜𣻻𧁒䓴𣛮𩦝𦼦柹㜳㰕㷧塬𡤢栐䁗𣜿𤃡𤂋𤄏𦰡哋嚞𦚱嚒𠿟𠮨𠸍鏆𨬓鎜仸儫㠙𤐶亼𠑥𠍿佋侊𥙑婨𠆫𠏋㦙𠌊𠐔㐵伩𠋀𨺳𠉵諚𠈌亘"],
+["92a1","働儍侢伃𤨎𣺊佂倮偬傁俌俥偘僼兙兛兝兞湶𣖕𣸹𣺿浲𡢄𣺉冨凃𠗠䓝𠒣𠒒𠒑赺𨪜𠜎剙劤𠡳勡鍮䙺熌𤎌𠰠𤦬𡃤槑𠸝瑹㻞璙琔瑖玘䮎𤪼𤂍叐㖄爏𤃉喴𠍅响𠯆圝鉝雴鍦埝垍坿㘾壋媙𨩆𡛺𡝯𡜐娬妸銏婾嫏娒𥥆𡧳𡡡𤊕㛵洅瑃娡𥺃"],
+["9340","媁𨯗𠐓鏠璌𡌃焅䥲鐈𨧻鎽㞠尞岞幞幈𡦖𡥼𣫮廍孏𡤃𡤄㜁𡢠㛝𡛾㛓脪𨩇𡶺𣑲𨦨弌弎𡤧𡞫婫𡜻孄蘔𧗽衠恾𢡠𢘫忛㺸𢖯𢖾𩂈𦽳懀𠀾𠁆𢘛憙憘恵𢲛𢴇𤛔𩅍"],
+["93a1","摱𤙥𢭪㨩𢬢𣑐𩣪𢹸挷𪑛撶挱揑𤧣𢵧护𢲡搻敫楲㯴𣂎𣊭𤦉𣊫唍𣋠𡣙𩐿曎𣊉𣆳㫠䆐𥖄𨬢𥖏𡛼𥕛𥐥磮𣄃𡠪𣈴㑤𣈏𣆂𤋉暎𦴤晫䮓昰𧡰𡷫晣𣋒𣋡昞𥡲㣑𣠺𣞼㮙𣞢𣏾瓐㮖枏𤘪梶栞㯄檾㡣𣟕𤒇樳橒櫉欅𡤒攑梘橌㯗橺歗𣿀𣲚鎠鋲𨯪𨫋"],
+["9440","銉𨀞𨧜鑧涥漋𤧬浧𣽿㶏渄𤀼娽渊塇洤硂焻𤌚𤉶烱牐犇犔𤞏𤜥兹𤪤𠗫瑺𣻸𣙟𤩊𤤗𥿡㼆㺱𤫟𨰣𣼵悧㻳瓌琼鎇琷䒟𦷪䕑疃㽣𤳙𤴆㽘畕癳𪗆㬙瑨𨫌𤦫𤦎㫻"],
+["94a1","㷍𤩎㻿𤧅𤣳釺圲鍂𨫣𡡤僟𥈡𥇧睸𣈲眎眏睻𤚗𣞁㩞𤣰琸璛㺿𤪺𤫇䃈𤪖𦆮錇𥖁砞碍碈磒珐祙𧝁𥛣䄎禛蒖禥樭𣻺稺秴䅮𡛦䄲鈵秱𠵌𤦌𠊙𣶺𡝮㖗啫㕰㚪𠇔𠰍竢婙𢛵𥪯𥪜娍𠉛磰娪𥯆竾䇹籝籭䈑𥮳𥺼𥺦糍𤧹𡞰粎籼粮檲緜縇緓罎𦉡"],
+["9540","𦅜𧭈綗𥺂䉪𦭵𠤖柖𠁎𣗏埄𦐒𦏸𤥢翝笧𠠬𥫩𥵃笌𥸎駦虅驣樜𣐿㧢𤧷𦖭騟𦖠蒀𧄧𦳑䓪脷䐂胆脉腂𦞴飃𦩂艢艥𦩑葓𦶧蘐𧈛媆䅿𡡀嬫𡢡嫤𡣘蚠蜨𣶏蠭𧐢娂"],
+["95a1","衮佅袇袿裦襥襍𥚃襔𧞅𧞄𨯵𨯙𨮜𨧹㺭蒣䛵䛏㟲訽訜𩑈彍鈫𤊄旔焩烄𡡅鵭貟賩𧷜妚矃姰䍮㛔踪躧𤰉輰轊䋴汘澻𢌡䢛潹溋𡟚鯩㚵𤤯邻邗啱䤆醻鐄𨩋䁢𨫼鐧𨰝𨰻蓥訫閙閧閗閖𨴴瑅㻂𤣿𤩂𤏪㻧𣈥随𨻧𨹦𨹥㻌𤧭𤩸𣿮琒瑫㻼靁𩂰"],
+["9640","桇䨝𩂓𥟟靝鍨𨦉𨰦𨬯𦎾銺嬑譩䤼珹𤈛鞛靱餸𠼦巁𨯅𤪲頟𩓚鋶𩗗釥䓀𨭐𤩧𨭤飜𨩅㼀鈪䤥萔餻饍𧬆㷽馛䭯馪驜𨭥𥣈檏騡嫾騯𩣱䮐𩥈馼䮽䮗鍽塲𡌂堢𤦸"],
+["96a1","𡓨硄𢜟𣶸棅㵽鑘㤧慐𢞁𢥫愇鱏鱓鱻鰵鰐魿鯏𩸭鮟𪇵𪃾鴡䲮𤄄鸘䲰鴌𪆴𪃭𪃳𩤯鶥蒽𦸒𦿟𦮂藼䔳𦶤𦺄𦷰萠藮𦸀𣟗𦁤秢𣖜𣙀䤭𤧞㵢鏛銾鍈𠊿碹鉷鑍俤㑀遤𥕝砽硔碶硋𡝗𣇉𤥁㚚佲濚濙瀞瀞吔𤆵垻壳垊鴖埗焴㒯𤆬燫𦱀𤾗嬨𡞵𨩉"],
+["9740","愌嫎娋䊼𤒈㜬䭻𨧼鎻鎸𡣖𠼝葲𦳀𡐓𤋺𢰦𤏁妔𣶷𦝁綨𦅛𦂤𤦹𤦋𨧺鋥珢㻩璴𨭣𡢟㻡𤪳櫘珳珻㻖𤨾𤪔𡟙𤩦𠎧𡐤𤧥瑈𤤖炥𤥶銄珦鍟𠓾錱𨫎𨨖鎆𨯧𥗕䤵𨪂煫"],
+["97a1","𤥃𠳿嚤𠘚𠯫𠲸唂秄𡟺緾𡛂𤩐𡡒䔮鐁㜊𨫀𤦭妰𡢿𡢃𧒄媡㛢𣵛㚰鉟婹𨪁𡡢鍴㳍𠪴䪖㦊僴㵩㵌𡎜煵䋻𨈘渏𩃤䓫浗𧹏灧沯㳖𣿭𣸭渂漌㵯𠏵畑㚼㓈䚀㻚䡱姄鉮䤾轁𨰜𦯀堒埈㛖𡑒烾𤍢𤩱𢿣𡊰𢎽梹楧𡎘𣓥𧯴𣛟𨪃𣟖𣏺𤲟樚𣚭𦲷萾䓟䓎"],
+["9840","𦴦𦵑𦲂𦿞漗𧄉茽𡜺菭𦲀𧁓𡟛妉媂𡞳婡婱𡤅𤇼㜭姯𡜼㛇熎鎐暚𤊥婮娫𤊓樫𣻹𧜶𤑛𤋊焝𤉙𨧡侰𦴨峂𤓎𧹍𤎽樌𤉖𡌄炦焳𤏩㶥泟勇𤩏繥姫崯㷳彜𤩝𡟟綤萦"],
+["98a1","咅𣫺𣌀𠈔坾𠣕𠘙㿥𡾞𪊶瀃𩅛嵰玏糓𨩙𩐠俈翧狍猐𧫴猸猹𥛶獁獈㺩𧬘遬燵𤣲珡臶㻊県㻑沢国琙琞琟㻢㻰㻴㻺瓓㼎㽓畂畭畲疍㽼痈痜㿀癍㿗癴㿜発𤽜熈嘣覀塩䀝睃䀹条䁅㗛瞘䁪䁯属瞾矋売砘点砜䂨砹硇硑硦葈𥔵礳栃礲䄃"],
+["9940","䄉禑禙辻稆込䅧窑䆲窼艹䇄竏竛䇏両筢筬筻簒簛䉠䉺类粜䊌粸䊔糭输烀𠳏総緔緐緽羮羴犟䎗耠耥笹耮耱联㷌垴炠肷胩䏭脌猪脎脒畠脔䐁㬹腖腙腚"],
+["99a1","䐓堺腼膄䐥膓䐭膥埯臁臤艔䒏芦艶苊苘苿䒰荗险榊萅烵葤惣蒈䔄蒾蓡蓸蔐蔸蕒䔻蕯蕰藠䕷虲蚒蚲蛯际螋䘆䘗袮裿褤襇覑𧥧訩訸誔誴豑賔賲贜䞘塟跃䟭仮踺嗘坔蹱嗵躰䠷軎転軤軭軲辷迁迊迌逳駄䢭飠鈓䤞鈨鉘鉫銱銮銿"],
+["9a40","鋣鋫鋳鋴鋽鍃鎄鎭䥅䥑麿鐗匁鐝鐭鐾䥪鑔鑹锭関䦧间阳䧥枠䨤靀䨵鞲韂噔䫤惨颹䬙飱塄餎餙冴餜餷饂饝饢䭰駅䮝騼鬏窃魩鮁鯝鯱鯴䱭鰠㝯𡯂鵉鰺"],
+["9aa1","黾噐鶓鶽鷀鷼银辶鹻麬麱麽黆铜黢黱黸竈齄𠂔𠊷𠎠椚铃妬𠓗塀铁㞹𠗕𠘕𠙶𡚺块煳𠫂𠫍𠮿呪吆𠯋咞𠯻𠰻𠱓𠱥𠱼惧𠲍噺𠲵𠳝𠳭𠵯𠶲𠷈楕鰯螥𠸄𠸎𠻗𠾐𠼭𠹳尠𠾼帋𡁜𡁏𡁶朞𡁻𡂈𡂖㙇𡂿𡃓𡄯𡄻卤蒭𡋣𡍵𡌶讁𡕷𡘙𡟃𡟇乸炻𡠭𡥪"],
+["9b40","𡨭𡩅𡰪𡱰𡲬𡻈拃𡻕𡼕熘桕𢁅槩㛈𢉼𢏗𢏺𢜪𢡱𢥏苽𢥧𢦓𢫕覥𢫨辠𢬎鞸𢬿顇骽𢱌"],
+["9b62","𢲈𢲷𥯨𢴈𢴒𢶷𢶕𢹂𢽴𢿌𣀳𣁦𣌟𣏞徱晈暿𧩹𣕧𣗳爁𤦺矗𣘚𣜖纇𠍆墵朎"],
+["9ba1","椘𣪧𧙗𥿢𣸑𣺹𧗾𢂚䣐䪸𤄙𨪚𤋮𤌍𤀻𤌴𤎖𤩅𠗊凒𠘑妟𡺨㮾𣳿𤐄𤓖垈𤙴㦛𤜯𨗨𩧉㝢𢇃譞𨭎駖𤠒𤣻𤨕爉𤫀𠱸奥𤺥𤾆𠝹軚𥀬劏圿煱𥊙𥐙𣽊𤪧喼𥑆𥑮𦭒釔㑳𥔿𧘲𥕞䜘𥕢𥕦𥟇𤤿𥡝偦㓻𣏌惞𥤃䝼𨥈𥪮𥮉𥰆𡶐垡煑澶𦄂𧰒遖𦆲𤾚譢𦐂𦑊"],
+["9c40","嵛𦯷輶𦒄𡤜諪𤧶𦒈𣿯𦔒䯀𦖿𦚵𢜛鑥𥟡憕娧晉侻嚹𤔡𦛼乪𤤴陖涏𦲽㘘襷𦞙𦡮𦐑𦡞營𦣇筂𩃀𠨑𦤦鄄𦤹穅鷰𦧺騦𦨭㙟𦑩𠀡禃𦨴𦭛崬𣔙菏𦮝䛐𦲤画补𦶮墶"],
+["9ca1","㜜𢖍𧁋𧇍㱔𧊀𧊅銁𢅺𧊋錰𧋦𤧐氹钟𧑐𠻸蠧裵𢤦𨑳𡞱溸𤨪𡠠㦤㚹尐秣䔿暶𩲭𩢤襃𧟌𧡘囖䃟𡘊㦡𣜯𨃨𡏅熭荦𧧝𩆨婧䲷𧂯𨦫𧧽𧨊𧬋𧵦𤅺筃祾𨀉澵𪋟樃𨌘厢𦸇鎿栶靝𨅯𨀣𦦵𡏭𣈯𨁈嶅𨰰𨂃圕頣𨥉嶫𤦈斾槕叒𤪥𣾁㰑朶𨂐𨃴𨄮𡾡𨅏"],
+["9d40","𨆉𨆯𨈚𨌆𨌯𨎊㗊𨑨𨚪䣺揦𨥖砈鉕𨦸䏲𨧧䏟𨧨𨭆𨯔姸𨰉輋𨿅𩃬筑𩄐𩄼㷷𩅞𤫊运犏嚋𩓧𩗩𩖰𩖸𩜲𩣑𩥉𩥪𩧃𩨨𩬎𩵚𩶛纟𩻸𩼣䲤镇𪊓熢𪋿䶑递𪗋䶜𠲜达嗁"],
+["9da1","辺𢒰边𤪓䔉繿潖檱仪㓤𨬬𧢝㜺躀𡟵𨀤𨭬𨮙𧨾𦚯㷫𧙕𣲷𥘵𥥖亚𥺁𦉘嚿𠹭踎孭𣺈𤲞揞拐𡟶𡡻攰嘭𥱊吚𥌑㷆𩶘䱽嘢嘞罉𥻘奵𣵀蝰东𠿪𠵉𣚺脗鵞贘瘻鱅癎瞹鍅吲腈苷嘥脲萘肽嗪祢噃吖𠺝㗎嘅嗱曱𨋢㘭甴嗰喺咗啲𠱁𠲖廐𥅈𠹶𢱢"],
+["9e40","𠺢麫絚嗞𡁵抝靭咔賍燶酶揼掹揾啩𢭃鱲𢺳冚㓟𠶧冧呍唞唓癦踭𦢊疱肶蠄螆裇膶萜𡃁䓬猄𤜆宐茋𦢓噻𢛴𧴯𤆣𧵳𦻐𧊶酰𡇙鈈𣳼𪚩𠺬𠻹牦𡲢䝎𤿂𧿹𠿫䃺"],
+["9ea1","鱝攟𢶠䣳𤟠𩵼𠿬𠸊恢𧖣𠿭"],
+["9ead","𦁈𡆇熣纎鵐业丄㕷嬍沲卧㚬㧜卽㚥𤘘墚𤭮舭呋垪𥪕𠥹"],
+["9ec5","㩒𢑥獴𩺬䴉鯭𣳾𩼰䱛𤾩𩖞𩿞葜𣶶𧊲𦞳𣜠挮紥𣻷𣸬㨪逈勌㹴㙺䗩𠒎癀嫰𠺶硺𧼮墧䂿噼鮋嵴癔𪐴麅䳡痹㟻愙𣃚𤏲"],
+["9ef5","噝𡊩垧𤥣𩸆刴𧂮㖭汊鵼"],
+["9f40","籖鬹埞𡝬屓擓𩓐𦌵𧅤蚭𠴨𦴢𤫢𠵱"],
+["9f4f","凾𡼏嶎霃𡷑麁遌笟鬂峑箣扨挵髿篏鬪籾鬮籂粆鰕篼鬉鼗鰛𤤾齚啳寃俽麘俲剠㸆勑坧偖妷帒韈鶫轜呩鞴饀鞺匬愰"],
+["9fa1","椬叚鰊鴂䰻陁榀傦畆𡝭駚剳"],
+["9fae","酙隁酜"],
+["9fb2","酑𨺗捿𦴣櫊嘑醎畺抅𠏼獏籰𥰡𣳽"],
+["9fc1","𤤙盖鮝个𠳔莾衂"],
+["9fc9","届槀僭坺刟巵从氱𠇲伹咜哚劚趂㗾弌㗳"],
+["9fdb","歒酼龥鮗頮颴骺麨麄煺笔"],
+["9fe7","毺蠘罸"],
+["9feb","嘠𪙊蹷齓"],
+["9ff0","跔蹏鸜踁抂𨍽踨蹵竓𤩷稾磘泪詧瘇"],
+["a040","𨩚鼦泎蟖痃𪊲硓咢贌狢獱謭猂瓱賫𤪻蘯徺袠䒷"],
+["a055","𡠻𦸅"],
+["a058","詾𢔛"],
+["a05b","惽癧髗鵄鍮鮏蟵"],
+["a063","蠏賷猬霡鮰㗖犲䰇籑饊𦅙慙䰄麖慽"],
+["a073","坟慯抦戹拎㩜懢厪𣏵捤栂㗒"],
+["a0a1","嵗𨯂迚𨸹"],
+["a0a6","僙𡵆礆匲阸𠼻䁥"],
+["a0ae","矾"],
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+["a0d4","覩瑨涹蟁𤀑瓧㷛煶悤憜㳑煢恷"],
+["a0e2","罱𨬭牐惩䭾删㰘𣳇𥻗𧙖𥔱𡥄𡋾𩤃𦷜𧂭峁𦆭𨨏𣙷𠃮𦡆𤼎䕢嬟𦍌齐麦𦉫"],
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+["c740","す",58,"ァアィイ"],
+["c7a1","ゥ",81,"А",5,"ЁЖ",4],
+["c840","Л",26,"ёж",25,"⇧↸↹㇏𠃌乚𠂊刂䒑"],
+["c8a1","龰冈龱𧘇"],
+["c8cd","￢￤＇＂㈱№℡゛゜⺀⺄⺆⺇⺈⺊⺌⺍⺕⺜⺝⺥⺧⺪⺬⺮⺶⺼⺾⻆⻊⻌⻍⻏⻖⻗⻞⻣"],
+["c8f5","ʃɐɛɔɵœøŋʊɪ"],
+["f9fe","￭"],
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+["fba1","𡘾娤啓𡚒蔅姉𠵎𦲁𦴪𡟜姙𡟻𡞲𦶦浱𡠨𡛕姹𦹅媫婣㛦𤦩婷㜈媖瑥嫓𦾡𢕔㶅𡤑㜲𡚸広勐孶斈孼𧨎䀄䡝𠈄寕慠𡨴𥧌𠖥寳宝䴐尅𡭄尓珎尔𡲥𦬨屉䣝岅峩峯嶋𡷹𡸷崐崘嵆𡺤岺巗苼㠭𤤁𢁉𢅳芇㠶㯂帮檊幵幺𤒼𠳓厦亷廐厨𡝱帉廴𨒂"],
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+["fca1","𢡟懓𨮝𩥝懐㤲𢦀𢣁怣慜攞掋𠄘担𡝰拕𢸍捬𤧟㨗搸揸𡎎𡟼撐澊𢸶頔𤂌𥜝擡擥鑻㩦携㩗敍漖𤨨𤨣斅敭敟𣁾斵𤥀䬷旑䃘𡠩无旣忟𣐀昘𣇷𣇸晄𣆤𣆥晋𠹵晧𥇦晳晴𡸽𣈱𨗴𣇈𥌓矅𢣷馤朂𤎜𤨡㬫槺𣟂杞杧杢𤇍𩃭柗䓩栢湐鈼栁𣏦𦶠桝"],
+["fd40","𣑯槡樋𨫟楳棃𣗍椁椀㴲㨁𣘼㮀枬楡𨩊䋼椶榘㮡𠏉荣傐槹𣙙𢄪橅𣜃檝㯳枱櫈𩆜㰍欝𠤣惞欵歴𢟍溵𣫛𠎵𡥘㝀吡𣭚毡𣻼毜氷𢒋𤣱𦭑汚舦汹𣶼䓅𣶽𤆤𤤌𤤀"],
+["fda1","𣳉㛥㳫𠴲鮃𣇹𢒑羏样𦴥𦶡𦷫涖浜湼漄𤥿𤂅𦹲蔳𦽴凇沜渝萮𨬡港𣸯瑓𣾂秌湏媑𣁋濸㜍澝𣸰滺𡒗𤀽䕕鏰潄潜㵎潴𩅰㴻澟𤅄濓𤂑𤅕𤀹𣿰𣾴𤄿凟𤅖𤅗𤅀𦇝灋灾炧炁烌烕烖烟䄄㷨熴熖𤉷焫煅媈煊煮岜𤍥煏鍢𤋁焬𤑚𤨧𤨢熺𨯨炽爎"],
+["fe40","鑂爕夑鑃爤鍁𥘅爮牀𤥴梽牕牗㹕𣁄栍漽犂猪猫𤠣𨠫䣭𨠄猨献珏玪𠰺𦨮珉瑉𤇢𡛧𤨤昣㛅𤦷𤦍𤧻珷琕椃𤨦琹𠗃㻗瑜𢢭瑠𨺲瑇珤瑶莹瑬㜰瑴鏱樬璂䥓𤪌"],
+["fea1","𤅟𤩹𨮏孆𨰃𡢞瓈𡦈甎瓩甞𨻙𡩋寗𨺬鎅畍畊畧畮𤾂㼄𤴓疎瑝疞疴瘂瘬癑癏癯癶𦏵皐臯㟸𦤑𦤎皡皥皷盌𦾟葢𥂝𥅽𡸜眞眦着撯𥈠睘𣊬瞯𨥤𨥨𡛁矴砉𡍶𤨒棊碯磇磓隥礮𥗠磗礴碱𧘌辸袄𨬫𦂃𢘜禆褀椂禀𥡗禝𧬹礼禩渪𧄦㺨秆𩄍秔"]
+]
diff --git a/backend/node_modules/raw-body/node_modules/iconv-lite/encodings/tables/cp936.json b/backend/node_modules/raw-body/node_modules/iconv-lite/encodings/tables/cp936.json
new file mode 100644
index 0000000..49ddb9a
--- /dev/null
+++ b/backend/node_modules/raw-body/node_modules/iconv-lite/encodings/tables/cp936.json
@@ -0,0 +1,264 @@
+[
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+["fb80","麁麃麄麅麆麉麊麌",5,"麔",8,"麞麠",5,"麧麨麩麪"],
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+["fc80","鼆",4,"鼌鼏鼑鼒鼔鼕鼖鼘鼚",5,"鼡鼣",8,"鼭鼮鼰鼱"],
+["fd40","鼲",4,"鼸鼺鼼鼿",4,"齅",10,"齒",38],
+["fd80","齹",5,"龁龂龍",11,"龜龝龞龡",4,"郎凉秊裏隣"],
+["fe40","兀嗀﨎﨏﨑﨓﨔礼﨟蘒﨡﨣﨤﨧﨨﨩"]
+]
diff --git a/backend/node_modules/raw-body/node_modules/iconv-lite/encodings/tables/cp949.json b/backend/node_modules/raw-body/node_modules/iconv-lite/encodings/tables/cp949.json
new file mode 100644
index 0000000..2022a00
--- /dev/null
+++ b/backend/node_modules/raw-body/node_modules/iconv-lite/encodings/tables/cp949.json
@@ -0,0 +1,273 @@
+[
+["0","\u0000",127],
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+["8161","갵갶갷갺갻갽갾갿걁",9,"걌걎",5,"걕"],
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+["8241","괔괕괖괗괙괚괛괝괞괟괡",7,"괪괫괮",5],
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+["8281","굙",7,"굢굤",7,"굮굯굱굲굷굸굹굺굾궀궃",4,"궊궋궍궎궏궑",10,"궞",5,"궥",17,"궸",7,"귂귃귅귆귇귉",6,"귒귔",7,"귝귞귟귡귢귣귥",18],
+["8341","귺귻귽귾긂",5,"긊긌긎",5,"긕",7],
+["8361","긝",18,"긲긳긵긶긹긻긼"],
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+["8461","꼆꼉꼊꼋꼌꼎꼏꼑",18],
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+["8661","냓냕냖냗냙",6,"냡냢냣냤냦",10],
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+["8741","놞",9,"놩",15],
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+["b081","컖",13,"컦컧컩컪컭",6,"컶컺",5,"가각간갇갈갉갊감",7,"같",4,"갠갤갬갭갯갰갱갸갹갼걀걋걍걔걘걜거걱건걷걸걺검겁것겄겅겆겉겊겋게겐겔겜겝겟겠겡겨격겪견겯결겸겹겻겼경곁계곈곌곕곗고곡곤곧골곪곬곯곰곱곳공곶과곽관괄괆"],
+["b141","켂켃켅켆켇켉",6,"켒켔켖",5,"켝켞켟켡켢켣"],
+["b161","켥",6,"켮켲",5,"켹",11],
+["b181","콅",14,"콖콗콙콚콛콝",6,"콦콨콪콫콬괌괍괏광괘괜괠괩괬괭괴괵괸괼굄굅굇굉교굔굘굡굣구국군굳굴굵굶굻굼굽굿궁궂궈궉권궐궜궝궤궷귀귁귄귈귐귑귓규균귤그극근귿글긁금급긋긍긔기긱긴긷길긺김깁깃깅깆깊까깍깎깐깔깖깜깝깟깠깡깥깨깩깬깰깸"],
+["b241","콭콮콯콲콳콵콶콷콹",6,"쾁쾂쾃쾄쾆",5,"쾍"],
+["b261","쾎",18,"쾢",5,"쾩"],
+["b281","쾪",5,"쾱",18,"쿅",6,"깹깻깼깽꺄꺅꺌꺼꺽꺾껀껄껌껍껏껐껑께껙껜껨껫껭껴껸껼꼇꼈꼍꼐꼬꼭꼰꼲꼴꼼꼽꼿꽁꽂꽃꽈꽉꽐꽜꽝꽤꽥꽹꾀꾄꾈꾐꾑꾕꾜꾸꾹꾼꿀꿇꿈꿉꿋꿍꿎꿔꿜꿨꿩꿰꿱꿴꿸뀀뀁뀄뀌뀐뀔뀜뀝뀨끄끅끈끊끌끎끓끔끕끗끙"],
+["b341","쿌",19,"쿢쿣쿥쿦쿧쿩"],
+["b361","쿪",5,"쿲쿴쿶",5,"쿽쿾쿿퀁퀂퀃퀅",5],
+["b381","퀋",5,"퀒",5,"퀙",19,"끝끼끽낀낄낌낍낏낑나낙낚난낟날낡낢남납낫",4,"낱낳내낵낸낼냄냅냇냈냉냐냑냔냘냠냥너넉넋넌널넒넓넘넙넛넜넝넣네넥넨넬넴넵넷넸넹녀녁년녈념녑녔녕녘녜녠노녹논놀놂놈놉놋농높놓놔놘놜놨뇌뇐뇔뇜뇝"],
+["b441","퀮",5,"퀶퀷퀹퀺퀻퀽",6,"큆큈큊",5],
+["b461","큑큒큓큕큖큗큙",6,"큡",10,"큮큯"],
+["b481","큱큲큳큵",6,"큾큿킀킂",18,"뇟뇨뇩뇬뇰뇹뇻뇽누눅눈눋눌눔눕눗눙눠눴눼뉘뉜뉠뉨뉩뉴뉵뉼늄늅늉느늑는늘늙늚늠늡늣능늦늪늬늰늴니닉닌닐닒님닙닛닝닢다닥닦단닫",4,"닳담답닷",4,"닿대댁댄댈댐댑댓댔댕댜더덕덖던덛덜덞덟덤덥"],
+["b541","킕",14,"킦킧킩킪킫킭",5],
+["b561","킳킶킸킺",5,"탂탃탅탆탇탊",5,"탒탖",4],
+["b581","탛탞탟탡탢탣탥",6,"탮탲",5,"탹",11,"덧덩덫덮데덱덴델뎀뎁뎃뎄뎅뎌뎐뎔뎠뎡뎨뎬도독돈돋돌돎돐돔돕돗동돛돝돠돤돨돼됐되된될됨됩됫됴두둑둔둘둠둡둣둥둬뒀뒈뒝뒤뒨뒬뒵뒷뒹듀듄듈듐듕드득든듣들듦듬듭듯등듸디딕딘딛딜딤딥딧딨딩딪따딱딴딸"],
+["b641","턅",7,"턎",17],
+["b661","턠",15,"턲턳턵턶턷턹턻턼턽턾"],
+["b681","턿텂텆",5,"텎텏텑텒텓텕",6,"텞텠텢",5,"텩텪텫텭땀땁땃땄땅땋때땍땐땔땜땝땟땠땡떠떡떤떨떪떫떰떱떳떴떵떻떼떽뗀뗄뗌뗍뗏뗐뗑뗘뗬또똑똔똘똥똬똴뙈뙤뙨뚜뚝뚠뚤뚫뚬뚱뛔뛰뛴뛸뜀뜁뜅뜨뜩뜬뜯뜰뜸뜹뜻띄띈띌띔띕띠띤띨띰띱띳띵라락란랄람랍랏랐랑랒랖랗"],
+["b741","텮",13,"텽",6,"톅톆톇톉톊"],
+["b761","톋",20,"톢톣톥톦톧"],
+["b781","톩",6,"톲톴톶톷톸톹톻톽톾톿퇁",14,"래랙랜랠램랩랫랬랭랴략랸럇량러럭런럴럼럽럿렀렁렇레렉렌렐렘렙렛렝려력련렬렴렵렷렸령례롄롑롓로록론롤롬롭롯롱롸롼뢍뢨뢰뢴뢸룀룁룃룅료룐룔룝룟룡루룩룬룰룸룹룻룽뤄뤘뤠뤼뤽륀륄륌륏륑류륙륜률륨륩"],
+["b841","퇐",7,"퇙",17],
+["b861","퇫",8,"퇵퇶퇷퇹",13],
+["b881","툈툊",5,"툑",24,"륫륭르륵른를름릅릇릉릊릍릎리릭린릴림립릿링마막만많",4,"맘맙맛망맞맡맣매맥맨맬맴맵맷맸맹맺먀먁먈먕머먹먼멀멂멈멉멋멍멎멓메멕멘멜멤멥멧멨멩며멱면멸몃몄명몇몌모목몫몬몰몲몸몹못몽뫄뫈뫘뫙뫼"],
+["b941","툪툫툮툯툱툲툳툵",6,"툾퉀퉂",5,"퉉퉊퉋퉌"],
+["b961","퉍",14,"퉝",6,"퉥퉦퉧퉨"],
+["b981","퉩",22,"튂튃튅튆튇튉튊튋튌묀묄묍묏묑묘묜묠묩묫무묵묶문묻물묽묾뭄뭅뭇뭉뭍뭏뭐뭔뭘뭡뭣뭬뮈뮌뮐뮤뮨뮬뮴뮷므믄믈믐믓미믹민믿밀밂밈밉밋밌밍및밑바",4,"받",4,"밤밥밧방밭배백밴밸뱀뱁뱃뱄뱅뱉뱌뱍뱐뱝버벅번벋벌벎범법벗"],
+["ba41","튍튎튏튒튓튔튖",5,"튝튞튟튡튢튣튥",6,"튭"],
+["ba61","튮튯튰튲",5,"튺튻튽튾틁틃",4,"틊틌",5],
+["ba81","틒틓틕틖틗틙틚틛틝",6,"틦",9,"틲틳틵틶틷틹틺벙벚베벡벤벧벨벰벱벳벴벵벼벽변별볍볏볐병볕볘볜보복볶본볼봄봅봇봉봐봔봤봬뵀뵈뵉뵌뵐뵘뵙뵤뵨부북분붇불붉붊붐붑붓붕붙붚붜붤붰붸뷔뷕뷘뷜뷩뷰뷴뷸븀븃븅브븍븐블븜븝븟비빅빈빌빎빔빕빗빙빚빛빠빡빤"],
+["bb41","틻",4,"팂팄팆",5,"팏팑팒팓팕팗",4,"팞팢팣"],
+["bb61","팤팦팧팪팫팭팮팯팱",6,"팺팾",5,"퍆퍇퍈퍉"],
+["bb81","퍊",31,"빨빪빰빱빳빴빵빻빼빽뺀뺄뺌뺍뺏뺐뺑뺘뺙뺨뻐뻑뻔뻗뻘뻠뻣뻤뻥뻬뼁뼈뼉뼘뼙뼛뼜뼝뽀뽁뽄뽈뽐뽑뽕뾔뾰뿅뿌뿍뿐뿔뿜뿟뿡쀼쁑쁘쁜쁠쁨쁩삐삑삔삘삠삡삣삥사삭삯산삳살삵삶삼삽삿샀상샅새색샌샐샘샙샛샜생샤"],
+["bc41","퍪",17,"퍾퍿펁펂펃펅펆펇"],
+["bc61","펈펉펊펋펎펒",5,"펚펛펝펞펟펡",6,"펪펬펮"],
+["bc81","펯",4,"펵펶펷펹펺펻펽",6,"폆폇폊",5,"폑",5,"샥샨샬샴샵샷샹섀섄섈섐섕서",4,"섣설섦섧섬섭섯섰성섶세섹센셀셈셉셋셌셍셔셕션셜셤셥셧셨셩셰셴셸솅소속솎손솔솖솜솝솟송솥솨솩솬솰솽쇄쇈쇌쇔쇗쇘쇠쇤쇨쇰쇱쇳쇼쇽숀숄숌숍숏숑수숙순숟술숨숩숫숭"],
+["bd41","폗폙",7,"폢폤",7,"폮폯폱폲폳폵폶폷"],
+["bd61","폸폹폺폻폾퐀퐂",5,"퐉",13],
+["bd81","퐗",5,"퐞",25,"숯숱숲숴쉈쉐쉑쉔쉘쉠쉥쉬쉭쉰쉴쉼쉽쉿슁슈슉슐슘슛슝스슥슨슬슭슴습슷승시식신싣실싫심십싯싱싶싸싹싻싼쌀쌈쌉쌌쌍쌓쌔쌕쌘쌜쌤쌥쌨쌩썅써썩썬썰썲썸썹썼썽쎄쎈쎌쏀쏘쏙쏜쏟쏠쏢쏨쏩쏭쏴쏵쏸쐈쐐쐤쐬쐰"],
+["be41","퐸",7,"푁푂푃푅",14],
+["be61","푔",7,"푝푞푟푡푢푣푥",7,"푮푰푱푲"],
+["be81","푳",4,"푺푻푽푾풁풃",4,"풊풌풎",5,"풕",8,"쐴쐼쐽쑈쑤쑥쑨쑬쑴쑵쑹쒀쒔쒜쒸쒼쓩쓰쓱쓴쓸쓺쓿씀씁씌씐씔씜씨씩씬씰씸씹씻씽아악안앉않알앍앎앓암압앗았앙앝앞애액앤앨앰앱앳앴앵야약얀얄얇얌얍얏양얕얗얘얜얠얩어억언얹얻얼얽얾엄",6,"엌엎"],
+["bf41","풞",10,"풪",14],
+["bf61","풹",18,"퓍퓎퓏퓑퓒퓓퓕"],
+["bf81","퓖",5,"퓝퓞퓠",7,"퓩퓪퓫퓭퓮퓯퓱",6,"퓹퓺퓼에엑엔엘엠엡엣엥여역엮연열엶엷염",5,"옅옆옇예옌옐옘옙옛옜오옥온올옭옮옰옳옴옵옷옹옻와왁완왈왐왑왓왔왕왜왝왠왬왯왱외왹왼욀욈욉욋욍요욕욘욜욤욥욧용우욱운울욹욺움웁웃웅워웍원월웜웝웠웡웨"],
+["c041","퓾",5,"픅픆픇픉픊픋픍",6,"픖픘",5],
+["c061","픞",25],
+["c081","픸픹픺픻픾픿핁핂핃핅",6,"핎핐핒",5,"핚핛핝핞핟핡핢핣웩웬웰웸웹웽위윅윈윌윔윕윗윙유육윤율윰윱윳융윷으윽은을읊음읍읏응",7,"읜읠읨읫이익인일읽읾잃임입잇있잉잊잎자작잔잖잗잘잚잠잡잣잤장잦재잭잰잴잼잽잿쟀쟁쟈쟉쟌쟎쟐쟘쟝쟤쟨쟬저적전절젊"],
+["c141","핤핦핧핪핬핮",5,"핶핷핹핺핻핽",6,"햆햊햋"],
+["c161","햌햍햎햏햑",19,"햦햧"],
+["c181","햨",31,"점접젓정젖제젝젠젤젬젭젯젱져젼졀졈졉졌졍졔조족존졸졺좀좁좃종좆좇좋좌좍좔좝좟좡좨좼좽죄죈죌죔죕죗죙죠죡죤죵주죽준줄줅줆줌줍줏중줘줬줴쥐쥑쥔쥘쥠쥡쥣쥬쥰쥴쥼즈즉즌즐즘즙즛증지직진짇질짊짐집짓"],
+["c241","헊헋헍헎헏헑헓",4,"헚헜헞",5,"헦헧헩헪헫헭헮"],
+["c261","헯",4,"헶헸헺",5,"혂혃혅혆혇혉",6,"혒"],
+["c281","혖",5,"혝혞혟혡혢혣혥",7,"혮",9,"혺혻징짖짙짚짜짝짠짢짤짧짬짭짯짰짱째짹짼쨀쨈쨉쨋쨌쨍쨔쨘쨩쩌쩍쩐쩔쩜쩝쩟쩠쩡쩨쩽쪄쪘쪼쪽쫀쫄쫌쫍쫏쫑쫓쫘쫙쫠쫬쫴쬈쬐쬔쬘쬠쬡쭁쭈쭉쭌쭐쭘쭙쭝쭤쭸쭹쮜쮸쯔쯤쯧쯩찌찍찐찔찜찝찡찢찧차착찬찮찰참찹찻"],
+["c341","혽혾혿홁홂홃홄홆홇홊홌홎홏홐홒홓홖홗홙홚홛홝",4],
+["c361","홢",4,"홨홪",5,"홲홳홵",11],
+["c381","횁횂횄횆",5,"횎횏횑횒횓횕",7,"횞횠횢",5,"횩횪찼창찾채책챈챌챔챕챗챘챙챠챤챦챨챰챵처척천철첨첩첫첬청체첵첸첼쳄쳅쳇쳉쳐쳔쳤쳬쳰촁초촉촌촐촘촙촛총촤촨촬촹최쵠쵤쵬쵭쵯쵱쵸춈추축춘출춤춥춧충춰췄췌췐취췬췰췸췹췻췽츄츈츌츔츙츠측츤츨츰츱츳층"],
+["c441","횫횭횮횯횱",7,"횺횼",7,"훆훇훉훊훋"],
+["c461","훍훎훏훐훒훓훕훖훘훚",5,"훡훢훣훥훦훧훩",4],
+["c481","훮훯훱훲훳훴훶",5,"훾훿휁휂휃휅",11,"휒휓휔치칙친칟칠칡침칩칫칭카칵칸칼캄캅캇캉캐캑캔캘캠캡캣캤캥캬캭컁커컥컨컫컬컴컵컷컸컹케켁켄켈켐켑켓켕켜켠켤켬켭켯켰켱켸코콕콘콜콤콥콧콩콰콱콴콸쾀쾅쾌쾡쾨쾰쿄쿠쿡쿤쿨쿰쿱쿳쿵쿼퀀퀄퀑퀘퀭퀴퀵퀸퀼"],
+["c541","휕휖휗휚휛휝휞휟휡",6,"휪휬휮",5,"휶휷휹"],
+["c561","휺휻휽",6,"흅흆흈흊",5,"흒흓흕흚",4],
+["c581","흟흢흤흦흧흨흪흫흭흮흯흱흲흳흵",6,"흾흿힀힂",5,"힊힋큄큅큇큉큐큔큘큠크큭큰클큼큽킁키킥킨킬킴킵킷킹타탁탄탈탉탐탑탓탔탕태택탠탤탬탭탯탰탱탸턍터턱턴털턺텀텁텃텄텅테텍텐텔템텝텟텡텨텬텼톄톈토톡톤톨톰톱톳통톺톼퇀퇘퇴퇸툇툉툐투툭툰툴툼툽툿퉁퉈퉜"],
+["c641","힍힎힏힑",6,"힚힜힞",5],
+["c6a1","퉤튀튁튄튈튐튑튕튜튠튤튬튱트특튼튿틀틂틈틉틋틔틘틜틤틥티틱틴틸팀팁팃팅파팍팎판팔팖팜팝팟팠팡팥패팩팬팰팸팹팻팼팽퍄퍅퍼퍽펀펄펌펍펏펐펑페펙펜펠펨펩펫펭펴편펼폄폅폈평폐폘폡폣포폭폰폴폼폽폿퐁"],
+["c7a1","퐈퐝푀푄표푠푤푭푯푸푹푼푿풀풂품풉풋풍풔풩퓌퓐퓔퓜퓟퓨퓬퓰퓸퓻퓽프픈플픔픕픗피픽핀필핌핍핏핑하학한할핥함합핫항해핵핸핼햄햅햇했행햐향허헉헌헐헒험헙헛헝헤헥헨헬헴헵헷헹혀혁현혈혐협혓혔형혜혠"],
+["c8a1","혤혭호혹혼홀홅홈홉홋홍홑화확환활홧황홰홱홴횃횅회획횐횔횝횟횡효횬횰횹횻후훅훈훌훑훔훗훙훠훤훨훰훵훼훽휀휄휑휘휙휜휠휨휩휫휭휴휵휸휼흄흇흉흐흑흔흖흗흘흙흠흡흣흥흩희흰흴흼흽힁히힉힌힐힘힙힛힝"],
+["caa1","伽佳假價加可呵哥嘉嫁家暇架枷柯歌珂痂稼苛茄街袈訶賈跏軻迦駕刻却各恪慤殼珏脚覺角閣侃刊墾奸姦干幹懇揀杆柬桿澗癎看磵稈竿簡肝艮艱諫間乫喝曷渴碣竭葛褐蝎鞨勘坎堪嵌感憾戡敢柑橄減甘疳監瞰紺邯鑑鑒龕"],
+["cba1","匣岬甲胛鉀閘剛堈姜岡崗康强彊慷江畺疆糠絳綱羌腔舡薑襁講鋼降鱇介价個凱塏愷愾慨改槪漑疥皆盖箇芥蓋豈鎧開喀客坑更粳羹醵倨去居巨拒据據擧渠炬祛距踞車遽鉅鋸乾件健巾建愆楗腱虔蹇鍵騫乞傑杰桀儉劍劒檢"],
+["cca1","瞼鈐黔劫怯迲偈憩揭擊格檄激膈覡隔堅牽犬甄絹繭肩見譴遣鵑抉決潔結缺訣兼慊箝謙鉗鎌京俓倞傾儆勁勍卿坰境庚徑慶憬擎敬景暻更梗涇炅烱璟璥瓊痙硬磬竟競絅經耕耿脛莖警輕逕鏡頃頸驚鯨係啓堺契季屆悸戒桂械"],
+["cda1","棨溪界癸磎稽系繫繼計誡谿階鷄古叩告呱固姑孤尻庫拷攷故敲暠枯槁沽痼皐睾稿羔考股膏苦苽菰藁蠱袴誥賈辜錮雇顧高鼓哭斛曲梏穀谷鵠困坤崑昆梱棍滾琨袞鯤汨滑骨供公共功孔工恐恭拱控攻珙空蚣貢鞏串寡戈果瓜"],
+["cea1","科菓誇課跨過鍋顆廓槨藿郭串冠官寬慣棺款灌琯瓘管罐菅觀貫關館刮恝括适侊光匡壙廣曠洸炚狂珖筐胱鑛卦掛罫乖傀塊壞怪愧拐槐魁宏紘肱轟交僑咬喬嬌嶠巧攪敎校橋狡皎矯絞翹膠蕎蛟較轎郊餃驕鮫丘久九仇俱具勾"],
+["cfa1","區口句咎嘔坵垢寇嶇廐懼拘救枸柩構歐毆毬求溝灸狗玖球瞿矩究絿耉臼舅舊苟衢謳購軀逑邱鉤銶駒驅鳩鷗龜國局菊鞠鞫麴君窘群裙軍郡堀屈掘窟宮弓穹窮芎躬倦券勸卷圈拳捲權淃眷厥獗蕨蹶闕机櫃潰詭軌饋句晷歸貴"],
+["d0a1","鬼龜叫圭奎揆槻珪硅窺竅糾葵規赳逵閨勻均畇筠菌鈞龜橘克剋劇戟棘極隙僅劤勤懃斤根槿瑾筋芹菫覲謹近饉契今妗擒昑檎琴禁禽芩衾衿襟金錦伋及急扱汲級給亘兢矜肯企伎其冀嗜器圻基埼夔奇妓寄岐崎己幾忌技旗旣"],
+["d1a1","朞期杞棋棄機欺氣汽沂淇玘琦琪璂璣畸畿碁磯祁祇祈祺箕紀綺羈耆耭肌記譏豈起錡錤飢饑騎騏驥麒緊佶吉拮桔金喫儺喇奈娜懦懶拏拿癩",5,"那樂",4,"諾酪駱亂卵暖欄煖爛蘭難鸞捏捺南嵐枏楠湳濫男藍襤拉"],
+["d2a1","納臘蠟衲囊娘廊",4,"乃來內奈柰耐冷女年撚秊念恬拈捻寧寗努勞奴弩怒擄櫓爐瑙盧",5,"駑魯",10,"濃籠聾膿農惱牢磊腦賂雷尿壘",7,"嫩訥杻紐勒",5,"能菱陵尼泥匿溺多茶"],
+["d3a1","丹亶但單團壇彖斷旦檀段湍短端簞緞蛋袒鄲鍛撻澾獺疸達啖坍憺擔曇淡湛潭澹痰聃膽蕁覃談譚錟沓畓答踏遝唐堂塘幢戇撞棠當糖螳黨代垈坮大對岱帶待戴擡玳臺袋貸隊黛宅德悳倒刀到圖堵塗導屠島嶋度徒悼挑掉搗桃"],
+["d4a1","棹櫂淘渡滔濤燾盜睹禱稻萄覩賭跳蹈逃途道都鍍陶韜毒瀆牘犢獨督禿篤纛讀墩惇敦旽暾沌焞燉豚頓乭突仝冬凍動同憧東桐棟洞潼疼瞳童胴董銅兜斗杜枓痘竇荳讀豆逗頭屯臀芚遁遯鈍得嶝橙燈登等藤謄鄧騰喇懶拏癩羅"],
+["d5a1","蘿螺裸邏樂洛烙珞絡落諾酪駱丹亂卵欄欒瀾爛蘭鸞剌辣嵐擥攬欖濫籃纜藍襤覽拉臘蠟廊朗浪狼琅瑯螂郞來崍徠萊冷掠略亮倆兩凉梁樑粮粱糧良諒輛量侶儷勵呂廬慮戾旅櫚濾礪藜蠣閭驢驪麗黎力曆歷瀝礫轢靂憐戀攣漣"],
+["d6a1","煉璉練聯蓮輦連鍊冽列劣洌烈裂廉斂殮濂簾獵令伶囹寧岺嶺怜玲笭羚翎聆逞鈴零靈領齡例澧禮醴隷勞怒撈擄櫓潞瀘爐盧老蘆虜路輅露魯鷺鹵碌祿綠菉錄鹿麓論壟弄朧瀧瓏籠聾儡瀨牢磊賂賚賴雷了僚寮廖料燎療瞭聊蓼"],
+["d7a1","遼鬧龍壘婁屢樓淚漏瘻累縷蔞褸鏤陋劉旒柳榴流溜瀏琉瑠留瘤硫謬類六戮陸侖倫崙淪綸輪律慄栗率隆勒肋凜凌楞稜綾菱陵俚利厘吏唎履悧李梨浬犁狸理璃異痢籬罹羸莉裏裡里釐離鯉吝潾燐璘藺躪隣鱗麟林淋琳臨霖砬"],
+["d8a1","立笠粒摩瑪痲碼磨馬魔麻寞幕漠膜莫邈万卍娩巒彎慢挽晩曼滿漫灣瞞萬蔓蠻輓饅鰻唜抹末沫茉襪靺亡妄忘忙望網罔芒茫莽輞邙埋妹媒寐昧枚梅每煤罵買賣邁魅脈貊陌驀麥孟氓猛盲盟萌冪覓免冕勉棉沔眄眠綿緬面麵滅"],
+["d9a1","蔑冥名命明暝椧溟皿瞑茗蓂螟酩銘鳴袂侮冒募姆帽慕摸摹暮某模母毛牟牡瑁眸矛耗芼茅謀謨貌木沐牧目睦穆鶩歿沒夢朦蒙卯墓妙廟描昴杳渺猫竗苗錨務巫憮懋戊拇撫无楙武毋無珷畝繆舞茂蕪誣貿霧鵡墨默們刎吻問文"],
+["daa1","汶紊紋聞蚊門雯勿沕物味媚尾嵋彌微未梶楣渼湄眉米美薇謎迷靡黴岷悶愍憫敏旻旼民泯玟珉緡閔密蜜謐剝博拍搏撲朴樸泊珀璞箔粕縛膊舶薄迫雹駁伴半反叛拌搬攀斑槃泮潘班畔瘢盤盼磐磻礬絆般蟠返頒飯勃拔撥渤潑"],
+["dba1","發跋醱鉢髮魃倣傍坊妨尨幇彷房放方旁昉枋榜滂磅紡肪膀舫芳蒡蚌訪謗邦防龐倍俳北培徘拜排杯湃焙盃背胚裴裵褙賠輩配陪伯佰帛柏栢白百魄幡樊煩燔番磻繁蕃藩飜伐筏罰閥凡帆梵氾汎泛犯範范法琺僻劈壁擘檗璧癖"],
+["dca1","碧蘗闢霹便卞弁變辨辯邊別瞥鱉鼈丙倂兵屛幷昞昺柄棅炳甁病秉竝輧餠騈保堡報寶普步洑湺潽珤甫菩補褓譜輔伏僕匐卜宓復服福腹茯蔔複覆輹輻馥鰒本乶俸奉封峯峰捧棒烽熢琫縫蓬蜂逢鋒鳳不付俯傅剖副否咐埠夫婦"],
+["dda1","孚孵富府復扶敷斧浮溥父符簿缶腐腑膚艀芙莩訃負賦賻赴趺部釜阜附駙鳧北分吩噴墳奔奮忿憤扮昐汾焚盆粉糞紛芬賁雰不佛弗彿拂崩朋棚硼繃鵬丕備匕匪卑妃婢庇悲憊扉批斐枇榧比毖毗毘沸泌琵痺砒碑秕秘粃緋翡肥"],
+["dea1","脾臂菲蜚裨誹譬費鄙非飛鼻嚬嬪彬斌檳殯浜濱瀕牝玭貧賓頻憑氷聘騁乍事些仕伺似使俟僿史司唆嗣四士奢娑寫寺射巳師徙思捨斜斯柶査梭死沙泗渣瀉獅砂社祀祠私篩紗絲肆舍莎蓑蛇裟詐詞謝賜赦辭邪飼駟麝削數朔索"],
+["dfa1","傘刪山散汕珊産疝算蒜酸霰乷撒殺煞薩三參杉森渗芟蔘衫揷澁鈒颯上傷像償商喪嘗孀尙峠常床庠廂想桑橡湘爽牀狀相祥箱翔裳觴詳象賞霜塞璽賽嗇塞穡索色牲生甥省笙墅壻嶼序庶徐恕抒捿敍暑曙書栖棲犀瑞筮絮緖署"],
+["e0a1","胥舒薯西誓逝鋤黍鼠夕奭席惜昔晳析汐淅潟石碩蓆釋錫仙僊先善嬋宣扇敾旋渲煽琁瑄璇璿癬禪線繕羨腺膳船蘚蟬詵跣選銑鐥饍鮮卨屑楔泄洩渫舌薛褻設說雪齧剡暹殲纖蟾贍閃陝攝涉燮葉城姓宬性惺成星晟猩珹盛省筬"],
+["e1a1","聖聲腥誠醒世勢歲洗稅笹細說貰召嘯塑宵小少巢所掃搔昭梳沼消溯瀟炤燒甦疏疎瘙笑篠簫素紹蔬蕭蘇訴逍遡邵銷韶騷俗屬束涑粟續謖贖速孫巽損蓀遜飡率宋悚松淞訟誦送頌刷殺灑碎鎖衰釗修受嗽囚垂壽嫂守岫峀帥愁"],
+["e2a1","戍手授搜收數樹殊水洙漱燧狩獸琇璲瘦睡秀穗竪粹綏綬繡羞脩茱蒐蓚藪袖誰讐輸遂邃酬銖銹隋隧隨雖需須首髓鬚叔塾夙孰宿淑潚熟琡璹肅菽巡徇循恂旬栒楯橓殉洵淳珣盾瞬筍純脣舜荀蓴蕣詢諄醇錞順馴戌術述鉥崇崧"],
+["e3a1","嵩瑟膝蝨濕拾習褶襲丞乘僧勝升承昇繩蠅陞侍匙嘶始媤尸屎屍市弑恃施是時枾柴猜矢示翅蒔蓍視試詩諡豕豺埴寔式息拭植殖湜熄篒蝕識軾食飾伸侁信呻娠宸愼新晨燼申神紳腎臣莘薪藎蜃訊身辛辰迅失室實悉審尋心沁"],
+["e4a1","沈深瀋甚芯諶什十拾雙氏亞俄兒啞娥峨我牙芽莪蛾衙訝阿雅餓鴉鵝堊岳嶽幄惡愕握樂渥鄂鍔顎鰐齷安岸按晏案眼雁鞍顔鮟斡謁軋閼唵岩巖庵暗癌菴闇壓押狎鴨仰央怏昻殃秧鴦厓哀埃崖愛曖涯碍艾隘靄厄扼掖液縊腋額"],
+["e5a1","櫻罌鶯鸚也倻冶夜惹揶椰爺耶若野弱掠略約若葯蒻藥躍亮佯兩凉壤孃恙揚攘敭暘梁楊樣洋瀁煬痒瘍禳穰糧羊良襄諒讓釀陽量養圄御於漁瘀禦語馭魚齬億憶抑檍臆偃堰彦焉言諺孼蘖俺儼嚴奄掩淹嶪業円予余勵呂女如廬"],
+["e6a1","旅歟汝濾璵礖礪與艅茹輿轝閭餘驪麗黎亦力域役易曆歷疫繹譯轢逆驛嚥堧姸娟宴年延憐戀捐挻撚椽沇沿涎涓淵演漣烟然煙煉燃燕璉硏硯秊筵緣練縯聯衍軟輦蓮連鉛鍊鳶列劣咽悅涅烈熱裂說閱厭廉念捻染殮炎焰琰艶苒"],
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diff --git a/backend/node_modules/raw-body/node_modules/iconv-lite/encodings/tables/cp950.json b/backend/node_modules/raw-body/node_modules/iconv-lite/encodings/tables/cp950.json
new file mode 100644
index 0000000..d8bc871
--- /dev/null
+++ b/backend/node_modules/raw-body/node_modules/iconv-lite/encodings/tables/cp950.json
@@ -0,0 +1,177 @@
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+["dc40","軹軦軮軥軵軧軨軶軫軱軬軴軩逭逴逯鄆鄬鄄郿郼鄈郹郻鄁鄀鄇鄅鄃酡酤酟酢酠鈁鈊鈥鈃鈚鈦鈏鈌鈀鈒釿釽鈆鈄鈧鈂鈜鈤鈙鈗鈅鈖镻閍閌閐隇陾隈"],
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+["de40","毹毷毸溛滖滈溏滀溟溓溔溠溱溹滆滒溽滁溞滉溷溰滍溦滏溲溾滃滜滘溙溒溎溍溤溡溿溳滐滊溗溮溣煇煔煒煣煠煁煝煢煲煸煪煡煂煘煃煋煰煟煐煓"],
+["dea1","煄煍煚牏犍犌犑犐犎猼獂猻猺獀獊獉瑄瑊瑋瑒瑑瑗瑀瑏瑐瑎瑂瑆瑍瑔瓡瓿瓾瓽甝畹畷榃痯瘏瘃痷痾痼痹痸瘐痻痶痭痵痽皙皵盝睕睟睠睒睖睚睩睧睔睙睭矠碇碚碔碏碄碕碅碆碡碃硹碙碀碖硻祼禂祽祹稑稘稙稒稗稕稢稓"],
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+["dfa1","腄腡舝艉艄艀艂艅蓱萿葖葶葹蒏蒍葥葑葀蒆葧萰葍葽葚葙葴葳葝蔇葞萷萺萴葺葃葸萲葅萩菙葋萯葂萭葟葰萹葎葌葒葯蓅蒎萻葇萶萳葨葾葄萫葠葔葮葐蜋蜄蛷蜌蛺蛖蛵蝍蛸蜎蜉蜁蛶蜍蜅裖裋裍裎裞裛裚裌裐覅覛觟觥觤"],
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+["e140","凘劀劁勩勫匰厬嘧嘕嘌嘒嗼嘏嘜嘁嘓嘂嗺嘝嘄嗿嗹墉塼墐墘墆墁塿塴墋塺墇墑墎塶墂墈塻墔墏壾奫嫜嫮嫥嫕嫪嫚嫭嫫嫳嫢嫠嫛嫬嫞嫝嫙嫨嫟孷寠"],
+["e1a1","寣屣嶂嶀嵽嶆嵺嶁嵷嶊嶉嶈嵾嵼嶍嵹嵿幘幙幓廘廑廗廎廜廕廙廒廔彄彃彯徶愬愨慁慞慱慳慒慓慲慬憀慴慔慺慛慥愻慪慡慖戩戧戫搫摍摛摝摴摶摲摳摽摵摦撦摎撂摞摜摋摓摠摐摿搿摬摫摙摥摷敳斠暡暠暟朅朄朢榱榶槉"],
+["e240","榠槎榖榰榬榼榑榙榎榧榍榩榾榯榿槄榽榤槔榹槊榚槏榳榓榪榡榞槙榗榐槂榵榥槆歊歍歋殞殟殠毃毄毾滎滵滱漃漥滸漷滻漮漉潎漙漚漧漘漻漒滭漊"],
+["e2a1","漶潳滹滮漭潀漰漼漵滫漇漎潃漅滽滶漹漜滼漺漟漍漞漈漡熇熐熉熀熅熂熏煻熆熁熗牄牓犗犕犓獃獍獑獌瑢瑳瑱瑵瑲瑧瑮甀甂甃畽疐瘖瘈瘌瘕瘑瘊瘔皸瞁睼瞅瞂睮瞀睯睾瞃碲碪碴碭碨硾碫碞碥碠碬碢碤禘禊禋禖禕禔禓"],
+["e340","禗禈禒禐稫穊稰稯稨稦窨窫窬竮箈箜箊箑箐箖箍箌箛箎箅箘劄箙箤箂粻粿粼粺綧綷緂綣綪緁緀緅綝緎緄緆緋緌綯綹綖綼綟綦綮綩綡緉罳翢翣翥翞"],
+["e3a1","耤聝聜膉膆膃膇膍膌膋舕蒗蒤蒡蒟蒺蓎蓂蒬蒮蒫蒹蒴蓁蓍蒪蒚蒱蓐蒝蒧蒻蒢蒔蓇蓌蒛蒩蒯蒨蓖蒘蒶蓏蒠蓗蓔蓒蓛蒰蒑虡蜳蜣蜨蝫蝀蜮蜞蜡蜙蜛蝃蜬蝁蜾蝆蜠蜲蜪蜭蜼蜒蜺蜱蜵蝂蜦蜧蜸蜤蜚蜰蜑裷裧裱裲裺裾裮裼裶裻"],
+["e440","裰裬裫覝覡覟覞觩觫觨誫誙誋誒誏誖谽豨豩賕賏賗趖踉踂跿踍跽踊踃踇踆踅跾踀踄輐輑輎輍鄣鄜鄠鄢鄟鄝鄚鄤鄡鄛酺酲酹酳銥銤鉶銛鉺銠銔銪銍"],
+["e4a1","銦銚銫鉹銗鉿銣鋮銎銂銕銢鉽銈銡銊銆銌銙銧鉾銇銩銝銋鈭隞隡雿靘靽靺靾鞃鞀鞂靻鞄鞁靿韎韍頖颭颮餂餀餇馝馜駃馹馻馺駂馽駇骱髣髧鬾鬿魠魡魟鳱鳲鳵麧僿儃儰僸儆儇僶僾儋儌僽儊劋劌勱勯噈噂噌嘵噁噊噉噆噘"],
+["e540","噚噀嘳嘽嘬嘾嘸嘪嘺圚墫墝墱墠墣墯墬墥墡壿嫿嫴嫽嫷嫶嬃嫸嬂嫹嬁嬇嬅嬏屧嶙嶗嶟嶒嶢嶓嶕嶠嶜嶡嶚嶞幩幝幠幜緳廛廞廡彉徲憋憃慹憱憰憢憉"],
+["e5a1","憛憓憯憭憟憒憪憡憍慦憳戭摮摰撖撠撅撗撜撏撋撊撌撣撟摨撱撘敶敺敹敻斲斳暵暰暩暲暷暪暯樀樆樗槥槸樕槱槤樠槿槬槢樛樝槾樧槲槮樔槷槧橀樈槦槻樍槼槫樉樄樘樥樏槶樦樇槴樖歑殥殣殢殦氁氀毿氂潁漦潾澇濆澒"],
+["e640","澍澉澌潢潏澅潚澖潶潬澂潕潲潒潐潗澔澓潝漀潡潫潽潧澐潓澋潩潿澕潣潷潪潻熲熯熛熰熠熚熩熵熝熥熞熤熡熪熜熧熳犘犚獘獒獞獟獠獝獛獡獚獙"],
+["e6a1","獢璇璉璊璆璁瑽璅璈瑼瑹甈甇畾瘥瘞瘙瘝瘜瘣瘚瘨瘛皜皝皞皛瞍瞏瞉瞈磍碻磏磌磑磎磔磈磃磄磉禚禡禠禜禢禛歶稹窲窴窳箷篋箾箬篎箯箹篊箵糅糈糌糋緷緛緪緧緗緡縃緺緦緶緱緰緮緟罶羬羰羭翭翫翪翬翦翨聤聧膣膟"],
+["e740","膞膕膢膙膗舖艏艓艒艐艎艑蔤蔻蔏蔀蔩蔎蔉蔍蔟蔊蔧蔜蓻蔫蓺蔈蔌蓴蔪蓲蔕蓷蓫蓳蓼蔒蓪蓩蔖蓾蔨蔝蔮蔂蓽蔞蓶蔱蔦蓧蓨蓰蓯蓹蔘蔠蔰蔋蔙蔯虢"],
+["e7a1","蝖蝣蝤蝷蟡蝳蝘蝔蝛蝒蝡蝚蝑蝞蝭蝪蝐蝎蝟蝝蝯蝬蝺蝮蝜蝥蝏蝻蝵蝢蝧蝩衚褅褌褔褋褗褘褙褆褖褑褎褉覢覤覣觭觰觬諏諆誸諓諑諔諕誻諗誾諀諅諘諃誺誽諙谾豍貏賥賟賙賨賚賝賧趠趜趡趛踠踣踥踤踮踕踛踖踑踙踦踧"],
+["e840","踔踒踘踓踜踗踚輬輤輘輚輠輣輖輗遳遰遯遧遫鄯鄫鄩鄪鄲鄦鄮醅醆醊醁醂醄醀鋐鋃鋄鋀鋙銶鋏鋱鋟鋘鋩鋗鋝鋌鋯鋂鋨鋊鋈鋎鋦鋍鋕鋉鋠鋞鋧鋑鋓"],
+["e8a1","銵鋡鋆銴镼閬閫閮閰隤隢雓霅霈霂靚鞊鞎鞈韐韏頞頝頦頩頨頠頛頧颲餈飺餑餔餖餗餕駜駍駏駓駔駎駉駖駘駋駗駌骳髬髫髳髲髱魆魃魧魴魱魦魶魵魰魨魤魬鳼鳺鳽鳿鳷鴇鴀鳹鳻鴈鴅鴄麃黓鼏鼐儜儓儗儚儑凞匴叡噰噠噮"],
+["e940","噳噦噣噭噲噞噷圜圛壈墽壉墿墺壂墼壆嬗嬙嬛嬡嬔嬓嬐嬖嬨嬚嬠嬞寯嶬嶱嶩嶧嶵嶰嶮嶪嶨嶲嶭嶯嶴幧幨幦幯廩廧廦廨廥彋徼憝憨憖懅憴懆懁懌憺"],
+["e9a1","憿憸憌擗擖擐擏擉撽撉擃擛擳擙攳敿敼斢曈暾曀曊曋曏暽暻暺曌朣樴橦橉橧樲橨樾橝橭橶橛橑樨橚樻樿橁橪橤橐橏橔橯橩橠樼橞橖橕橍橎橆歕歔歖殧殪殫毈毇氄氃氆澭濋澣濇澼濎濈潞濄澽澞濊澨瀄澥澮澺澬澪濏澿澸"],
+["ea40","澢濉澫濍澯澲澰燅燂熿熸燖燀燁燋燔燊燇燏熽燘熼燆燚燛犝犞獩獦獧獬獥獫獪瑿璚璠璔璒璕璡甋疀瘯瘭瘱瘽瘳瘼瘵瘲瘰皻盦瞚瞝瞡瞜瞛瞢瞣瞕瞙"],
+["eaa1","瞗磝磩磥磪磞磣磛磡磢磭磟磠禤穄穈穇窶窸窵窱窷篞篣篧篝篕篥篚篨篹篔篪篢篜篫篘篟糒糔糗糐糑縒縡縗縌縟縠縓縎縜縕縚縢縋縏縖縍縔縥縤罃罻罼罺羱翯耪耩聬膱膦膮膹膵膫膰膬膴膲膷膧臲艕艖艗蕖蕅蕫蕍蕓蕡蕘"],
+["eb40","蕀蕆蕤蕁蕢蕄蕑蕇蕣蔾蕛蕱蕎蕮蕵蕕蕧蕠薌蕦蕝蕔蕥蕬虣虥虤螛螏螗螓螒螈螁螖螘蝹螇螣螅螐螑螝螄螔螜螚螉褞褦褰褭褮褧褱褢褩褣褯褬褟觱諠"],
+["eba1","諢諲諴諵諝謔諤諟諰諈諞諡諨諿諯諻貑貒貐賵賮賱賰賳赬赮趥趧踳踾踸蹀蹅踶踼踽蹁踰踿躽輶輮輵輲輹輷輴遶遹遻邆郺鄳鄵鄶醓醐醑醍醏錧錞錈錟錆錏鍺錸錼錛錣錒錁鍆錭錎錍鋋錝鋺錥錓鋹鋷錴錂錤鋿錩錹錵錪錔錌"],
+["ec40","錋鋾錉錀鋻錖閼闍閾閹閺閶閿閵閽隩雔霋霒霐鞙鞗鞔韰韸頵頯頲餤餟餧餩馞駮駬駥駤駰駣駪駩駧骹骿骴骻髶髺髹髷鬳鮀鮅鮇魼魾魻鮂鮓鮒鮐魺鮕"],
+["eca1","魽鮈鴥鴗鴠鴞鴔鴩鴝鴘鴢鴐鴙鴟麈麆麇麮麭黕黖黺鼒鼽儦儥儢儤儠儩勴嚓嚌嚍嚆嚄嚃噾嚂噿嚁壖壔壏壒嬭嬥嬲嬣嬬嬧嬦嬯嬮孻寱寲嶷幬幪徾徻懃憵憼懧懠懥懤懨懞擯擩擣擫擤擨斁斀斶旚曒檍檖檁檥檉檟檛檡檞檇檓檎"],
+["ed40","檕檃檨檤檑橿檦檚檅檌檒歛殭氉濌澩濴濔濣濜濭濧濦濞濲濝濢濨燡燱燨燲燤燰燢獳獮獯璗璲璫璐璪璭璱璥璯甐甑甒甏疄癃癈癉癇皤盩瞵瞫瞲瞷瞶"],
+["eda1","瞴瞱瞨矰磳磽礂磻磼磲礅磹磾礄禫禨穜穛穖穘穔穚窾竀竁簅簏篲簀篿篻簎篴簋篳簂簉簃簁篸篽簆篰篱簐簊糨縭縼繂縳顈縸縪繉繀繇縩繌縰縻縶繄縺罅罿罾罽翴翲耬膻臄臌臊臅臇膼臩艛艚艜薃薀薏薧薕薠薋薣蕻薤薚薞"],
+["ee40","蕷蕼薉薡蕺蕸蕗薎薖薆薍薙薝薁薢薂薈薅蕹蕶薘薐薟虨螾螪螭蟅螰螬螹螵螼螮蟉蟃蟂蟌螷螯蟄蟊螴螶螿螸螽蟞螲褵褳褼褾襁襒褷襂覭覯覮觲觳謞"],
+["eea1","謘謖謑謅謋謢謏謒謕謇謍謈謆謜謓謚豏豰豲豱豯貕貔賹赯蹎蹍蹓蹐蹌蹇轃轀邅遾鄸醚醢醛醙醟醡醝醠鎡鎃鎯鍤鍖鍇鍼鍘鍜鍶鍉鍐鍑鍠鍭鎏鍌鍪鍹鍗鍕鍒鍏鍱鍷鍻鍡鍞鍣鍧鎀鍎鍙闇闀闉闃闅閷隮隰隬霠霟霘霝霙鞚鞡鞜"],
+["ef40","鞞鞝韕韔韱顁顄顊顉顅顃餥餫餬餪餳餲餯餭餱餰馘馣馡騂駺駴駷駹駸駶駻駽駾駼騃骾髾髽鬁髼魈鮚鮨鮞鮛鮦鮡鮥鮤鮆鮢鮠鮯鴳鵁鵧鴶鴮鴯鴱鴸鴰"],
+["efa1","鵅鵂鵃鴾鴷鵀鴽翵鴭麊麉麍麰黈黚黻黿鼤鼣鼢齔龠儱儭儮嚘嚜嚗嚚嚝嚙奰嬼屩屪巀幭幮懘懟懭懮懱懪懰懫懖懩擿攄擽擸攁攃擼斔旛曚曛曘櫅檹檽櫡櫆檺檶檷櫇檴檭歞毉氋瀇瀌瀍瀁瀅瀔瀎濿瀀濻瀦濼濷瀊爁燿燹爃燽獶"],
+["f040","璸瓀璵瓁璾璶璻瓂甔甓癜癤癙癐癓癗癚皦皽盬矂瞺磿礌礓礔礉礐礒礑禭禬穟簜簩簙簠簟簭簝簦簨簢簥簰繜繐繖繣繘繢繟繑繠繗繓羵羳翷翸聵臑臒"],
+["f0a1","臐艟艞薴藆藀藃藂薳薵薽藇藄薿藋藎藈藅薱薶藒蘤薸薷薾虩蟧蟦蟢蟛蟫蟪蟥蟟蟳蟤蟔蟜蟓蟭蟘蟣螤蟗蟙蠁蟴蟨蟝襓襋襏襌襆襐襑襉謪謧謣謳謰謵譇謯謼謾謱謥謷謦謶謮謤謻謽謺豂豵貙貘貗賾贄贂贀蹜蹢蹠蹗蹖蹞蹥蹧"],
+["f140","蹛蹚蹡蹝蹩蹔轆轇轈轋鄨鄺鄻鄾醨醥醧醯醪鎵鎌鎒鎷鎛鎝鎉鎧鎎鎪鎞鎦鎕鎈鎙鎟鎍鎱鎑鎲鎤鎨鎴鎣鎥闒闓闑隳雗雚巂雟雘雝霣霢霥鞬鞮鞨鞫鞤鞪"],
+["f1a1","鞢鞥韗韙韖韘韺顐顑顒颸饁餼餺騏騋騉騍騄騑騊騅騇騆髀髜鬈鬄鬅鬩鬵魊魌魋鯇鯆鯃鮿鯁鮵鮸鯓鮶鯄鮹鮽鵜鵓鵏鵊鵛鵋鵙鵖鵌鵗鵒鵔鵟鵘鵚麎麌黟鼁鼀鼖鼥鼫鼪鼩鼨齌齕儴儵劖勷厴嚫嚭嚦嚧嚪嚬壚壝壛夒嬽嬾嬿巃幰"],
+["f240","徿懻攇攐攍攉攌攎斄旞旝曞櫧櫠櫌櫑櫙櫋櫟櫜櫐櫫櫏櫍櫞歠殰氌瀙瀧瀠瀖瀫瀡瀢瀣瀩瀗瀤瀜瀪爌爊爇爂爅犥犦犤犣犡瓋瓅璷瓃甖癠矉矊矄矱礝礛"],
+["f2a1","礡礜礗礞禰穧穨簳簼簹簬簻糬糪繶繵繸繰繷繯繺繲繴繨罋罊羃羆羷翽翾聸臗臕艤艡艣藫藱藭藙藡藨藚藗藬藲藸藘藟藣藜藑藰藦藯藞藢蠀蟺蠃蟶蟷蠉蠌蠋蠆蟼蠈蟿蠊蠂襢襚襛襗襡襜襘襝襙覈覷覶觶譐譈譊譀譓譖譔譋譕"],
+["f340","譑譂譒譗豃豷豶貚贆贇贉趬趪趭趫蹭蹸蹳蹪蹯蹻軂轒轑轏轐轓辴酀鄿醰醭鏞鏇鏏鏂鏚鏐鏹鏬鏌鏙鎩鏦鏊鏔鏮鏣鏕鏄鏎鏀鏒鏧镽闚闛雡霩霫霬霨霦"],
+["f3a1","鞳鞷鞶韝韞韟顜顙顝顗颿颽颻颾饈饇饃馦馧騚騕騥騝騤騛騢騠騧騣騞騜騔髂鬋鬊鬎鬌鬷鯪鯫鯠鯞鯤鯦鯢鯰鯔鯗鯬鯜鯙鯥鯕鯡鯚鵷鶁鶊鶄鶈鵱鶀鵸鶆鶋鶌鵽鵫鵴鵵鵰鵩鶅鵳鵻鶂鵯鵹鵿鶇鵨麔麑黀黼鼭齀齁齍齖齗齘匷嚲"],
+["f440","嚵嚳壣孅巆巇廮廯忀忁懹攗攖攕攓旟曨曣曤櫳櫰櫪櫨櫹櫱櫮櫯瀼瀵瀯瀷瀴瀱灂瀸瀿瀺瀹灀瀻瀳灁爓爔犨獽獼璺皫皪皾盭矌矎矏矍矲礥礣礧礨礤礩"],
+["f4a1","禲穮穬穭竷籉籈籊籇籅糮繻繾纁纀羺翿聹臛臙舋艨艩蘢藿蘁藾蘛蘀藶蘄蘉蘅蘌藽蠙蠐蠑蠗蠓蠖襣襦覹觷譠譪譝譨譣譥譧譭趮躆躈躄轙轖轗轕轘轚邍酃酁醷醵醲醳鐋鐓鏻鐠鐏鐔鏾鐕鐐鐨鐙鐍鏵鐀鏷鐇鐎鐖鐒鏺鐉鏸鐊鏿"],
+["f540","鏼鐌鏶鐑鐆闞闠闟霮霯鞹鞻韽韾顠顢顣顟飁飂饐饎饙饌饋饓騲騴騱騬騪騶騩騮騸騭髇髊髆鬐鬒鬑鰋鰈鯷鰅鰒鯸鱀鰇鰎鰆鰗鰔鰉鶟鶙鶤鶝鶒鶘鶐鶛"],
+["f5a1","鶠鶔鶜鶪鶗鶡鶚鶢鶨鶞鶣鶿鶩鶖鶦鶧麙麛麚黥黤黧黦鼰鼮齛齠齞齝齙龑儺儹劘劗囃嚽嚾孈孇巋巏廱懽攛欂櫼欃櫸欀灃灄灊灈灉灅灆爝爚爙獾甗癪矐礭礱礯籔籓糲纊纇纈纋纆纍罍羻耰臝蘘蘪蘦蘟蘣蘜蘙蘧蘮蘡蘠蘩蘞蘥"],
+["f640","蠩蠝蠛蠠蠤蠜蠫衊襭襩襮襫觺譹譸譅譺譻贐贔趯躎躌轞轛轝酆酄酅醹鐿鐻鐶鐩鐽鐼鐰鐹鐪鐷鐬鑀鐱闥闤闣霵霺鞿韡顤飉飆飀饘饖騹騽驆驄驂驁騺"],
+["f6a1","騿髍鬕鬗鬘鬖鬺魒鰫鰝鰜鰬鰣鰨鰩鰤鰡鶷鶶鶼鷁鷇鷊鷏鶾鷅鷃鶻鶵鷎鶹鶺鶬鷈鶱鶭鷌鶳鷍鶲鹺麜黫黮黭鼛鼘鼚鼱齎齥齤龒亹囆囅囋奱孋孌巕巑廲攡攠攦攢欋欈欉氍灕灖灗灒爞爟犩獿瓘瓕瓙瓗癭皭礵禴穰穱籗籜籙籛籚"],
+["f740","糴糱纑罏羇臞艫蘴蘵蘳蘬蘲蘶蠬蠨蠦蠪蠥襱覿覾觻譾讄讂讆讅譿贕躕躔躚躒躐躖躗轠轢酇鑌鑐鑊鑋鑏鑇鑅鑈鑉鑆霿韣顪顩飋饔饛驎驓驔驌驏驈驊"],
+["f7a1","驉驒驐髐鬙鬫鬻魖魕鱆鱈鰿鱄鰹鰳鱁鰼鰷鰴鰲鰽鰶鷛鷒鷞鷚鷋鷐鷜鷑鷟鷩鷙鷘鷖鷵鷕鷝麶黰鼵鼳鼲齂齫龕龢儽劙壨壧奲孍巘蠯彏戁戃戄攩攥斖曫欑欒欏毊灛灚爢玂玁玃癰矔籧籦纕艬蘺虀蘹蘼蘱蘻蘾蠰蠲蠮蠳襶襴襳觾"],
+["f840","讌讎讋讈豅贙躘轤轣醼鑢鑕鑝鑗鑞韄韅頀驖驙鬞鬟鬠鱒鱘鱐鱊鱍鱋鱕鱙鱌鱎鷻鷷鷯鷣鷫鷸鷤鷶鷡鷮鷦鷲鷰鷢鷬鷴鷳鷨鷭黂黐黲黳鼆鼜鼸鼷鼶齃齏"],
+["f8a1","齱齰齮齯囓囍孎屭攭曭曮欓灟灡灝灠爣瓛瓥矕礸禷禶籪纗羉艭虃蠸蠷蠵衋讔讕躞躟躠躝醾醽釂鑫鑨鑩雥靆靃靇韇韥驞髕魙鱣鱧鱦鱢鱞鱠鸂鷾鸇鸃鸆鸅鸀鸁鸉鷿鷽鸄麠鼞齆齴齵齶囔攮斸欘欙欗欚灢爦犪矘矙礹籩籫糶纚"],
+["f940","纘纛纙臠臡虆虇虈襹襺襼襻觿讘讙躥躤躣鑮鑭鑯鑱鑳靉顲饟鱨鱮鱭鸋鸍鸐鸏鸒鸑麡黵鼉齇齸齻齺齹圞灦籯蠼趲躦釃鑴鑸鑶鑵驠鱴鱳鱱鱵鸔鸓黶鼊"],
+["f9a1","龤灨灥糷虪蠾蠽蠿讞貜躩軉靋顳顴飌饡馫驤驦驧鬤鸕鸗齈戇欞爧虌躨钂钀钁驩驨鬮鸙爩虋讟钃鱹麷癵驫鱺鸝灩灪麤齾齉龘碁銹裏墻恒粧嫺╔╦╗╠╬╣╚╩╝╒╤╕╞╪╡╘╧╛╓╥╖╟╫╢╙╨╜║═╭╮╰╯▓"]
+]
diff --git a/backend/node_modules/raw-body/node_modules/iconv-lite/encodings/tables/eucjp.json b/backend/node_modules/raw-body/node_modules/iconv-lite/encodings/tables/eucjp.json
new file mode 100644
index 0000000..4fa61ca
--- /dev/null
+++ b/backend/node_modules/raw-body/node_modules/iconv-lite/encodings/tables/eucjp.json
@@ -0,0 +1,182 @@
+[
+["0","\u0000",127],
+["8ea1","｡",62],
+["a1a1","　、。，．・：；？！゛゜´｀¨＾￣＿ヽヾゝゞ〃仝々〆〇ー―‐／＼～∥｜…‥‘’“”（）〔〕［］｛｝〈",9,"＋－±×÷＝≠＜＞≦≧∞∴♂♀°′″℃￥＄￠￡％＃＆＊＠§☆★○●◎◇"],
+["a2a1","◆□■△▲▽▼※〒→←↑↓〓"],
+["a2ba","∈∋⊆⊇⊂⊃∪∩"],
+["a2ca","∧∨￢⇒⇔∀∃"],
+["a2dc","∠⊥⌒∂∇≡≒≪≫√∽∝∵∫∬"],
+["a2f2","ʼn♯♭♪†‡¶"],
+["a2fe","◯"],
+["a3b0","０",9],
+["a3c1","Ａ",25],
+["a3e1","ａ",25],
+["a4a1","ぁ",82],
+["a5a1","ァ",85],
+["a6a1","Α",16,"Σ",6],
+["a6c1","α",16,"σ",6],
+["a7a1","А",5,"ЁЖ",25],
+["a7d1","а",5,"ёж",25],
+["a8a1","─│┌┐┘└├┬┤┴┼━┃┏┓┛┗┣┳┫┻╋┠┯┨┷┿┝┰┥┸╂"],
+["ada1","①",19,"Ⅰ",9],
+["adc0","㍉㌔㌢㍍㌘㌧㌃㌶㍑㍗㌍㌦㌣㌫㍊㌻㎜㎝㎞㎎㎏㏄㎡"],
+["addf","㍻〝〟№㏍℡㊤",4,"㈱㈲㈹㍾㍽㍼≒≡∫∮∑√⊥∠∟⊿∵∩∪"],
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+["cda1","諭輸唯佑優勇友宥幽悠憂揖有柚湧涌猶猷由祐裕誘遊邑郵雄融夕予余与誉輿預傭幼妖容庸揚揺擁曜楊様洋溶熔用窯羊耀葉蓉要謡踊遥陽養慾抑欲沃浴翌翼淀羅螺裸来莱頼雷洛絡落酪乱卵嵐欄濫藍蘭覧利吏履李梨理璃"],
+["cea1","痢裏裡里離陸律率立葎掠略劉流溜琉留硫粒隆竜龍侶慮旅虜了亮僚両凌寮料梁涼猟療瞭稜糧良諒遼量陵領力緑倫厘林淋燐琳臨輪隣鱗麟瑠塁涙累類令伶例冷励嶺怜玲礼苓鈴隷零霊麗齢暦歴列劣烈裂廉恋憐漣煉簾練聯"],
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+["d1a1","僉僊傳僂僖僞僥僭僣僮價僵儉儁儂儖儕儔儚儡儺儷儼儻儿兀兒兌兔兢竸兩兪兮冀冂囘册冉冏冑冓冕冖冤冦冢冩冪冫决冱冲冰况冽凅凉凛几處凩凭凰凵凾刄刋刔刎刧刪刮刳刹剏剄剋剌剞剔剪剴剩剳剿剽劍劔劒剱劈劑辨"],
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+["eba1","襦襤襭襪襯襴襷襾覃覈覊覓覘覡覩覦覬覯覲覺覽覿觀觚觜觝觧觴觸訃訖訐訌訛訝訥訶詁詛詒詆詈詼詭詬詢誅誂誄誨誡誑誥誦誚誣諄諍諂諚諫諳諧諤諱謔諠諢諷諞諛謌謇謚諡謖謐謗謠謳鞫謦謫謾謨譁譌譏譎證譖譛譚譫"],
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+["f2a1","髻鬆鬘鬚鬟鬢鬣鬥鬧鬨鬩鬪鬮鬯鬲魄魃魏魍魎魑魘魴鮓鮃鮑鮖鮗鮟鮠鮨鮴鯀鯊鮹鯆鯏鯑鯒鯣鯢鯤鯔鯡鰺鯲鯱鯰鰕鰔鰉鰓鰌鰆鰈鰒鰊鰄鰮鰛鰥鰤鰡鰰鱇鰲鱆鰾鱚鱠鱧鱶鱸鳧鳬鳰鴉鴈鳫鴃鴆鴪鴦鶯鴣鴟鵄鴕鴒鵁鴿鴾鵆鵈"],
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+["f4a1","堯槇遙瑤凜熙"],
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+["8fcfa1","睤睧睪睬睰睲睳睴睺睽瞀瞄瞌瞍瞔瞕瞖瞚瞟瞢瞧瞪瞮瞯瞱瞵瞾矃矉矑矒矕矙矞矟矠矤矦矪矬矰矱矴矸矻砅砆砉砍砎砑砝砡砢砣砭砮砰砵砷硃硄硇硈硌硎硒硜硞硠硡硣硤硨硪确硺硾碊碏碔碘碡碝碞碟碤碨碬碭碰碱碲碳"],
+["8fd0a1","碻碽碿磇磈磉磌磎磒磓磕磖磤磛磟磠磡磦磪磲磳礀磶磷磺磻磿礆礌礐礚礜礞礟礠礥礧礩礭礱礴礵礻礽礿祄祅祆祊祋祏祑祔祘祛祜祧祩祫祲祹祻祼祾禋禌禑禓禔禕禖禘禛禜禡禨禩禫禯禱禴禸离秂秄秇秈秊秏秔秖秚秝秞"],
+["8fd1a1","秠秢秥秪秫秭秱秸秼稂稃稇稉稊稌稑稕稛稞稡稧稫稭稯稰稴稵稸稹稺穄穅穇穈穌穕穖穙穜穝穟穠穥穧穪穭穵穸穾窀窂窅窆窊窋窐窑窔窞窠窣窬窳窵窹窻窼竆竉竌竎竑竛竨竩竫竬竱竴竻竽竾笇笔笟笣笧笩笪笫笭笮笯笰"],
+["8fd2a1","笱笴笽笿筀筁筇筎筕筠筤筦筩筪筭筯筲筳筷箄箉箎箐箑箖箛箞箠箥箬箯箰箲箵箶箺箻箼箽篂篅篈篊篔篖篗篙篚篛篨篪篲篴篵篸篹篺篼篾簁簂簃簄簆簉簋簌簎簏簙簛簠簥簦簨簬簱簳簴簶簹簺籆籊籕籑籒籓籙",5],
+["8fd3a1","籡籣籧籩籭籮籰籲籹籼籽粆粇粏粔粞粠粦粰粶粷粺粻粼粿糄糇糈糉糍糏糓糔糕糗糙糚糝糦糩糫糵紃紇紈紉紏紑紒紓紖紝紞紣紦紪紭紱紼紽紾絀絁絇絈絍絑絓絗絙絚絜絝絥絧絪絰絸絺絻絿綁綂綃綅綆綈綋綌綍綑綖綗綝"],
+["8fd4a1","綞綦綧綪綳綶綷綹緂",4,"緌緍緎緗緙縀緢緥緦緪緫緭緱緵緶緹緺縈縐縑縕縗縜縝縠縧縨縬縭縯縳縶縿繄繅繇繎繐繒繘繟繡繢繥繫繮繯繳繸繾纁纆纇纊纍纑纕纘纚纝纞缼缻缽缾缿罃罄罇罏罒罓罛罜罝罡罣罤罥罦罭"],
+["8fd5a1","罱罽罾罿羀羋羍羏羐羑羖羗羜羡羢羦羪羭羴羼羿翀翃翈翎翏翛翟翣翥翨翬翮翯翲翺翽翾翿耇耈耊耍耎耏耑耓耔耖耝耞耟耠耤耦耬耮耰耴耵耷耹耺耼耾聀聄聠聤聦聭聱聵肁肈肎肜肞肦肧肫肸肹胈胍胏胒胔胕胗胘胠胭胮"],
+["8fd6a1","胰胲胳胶胹胺胾脃脋脖脗脘脜脞脠脤脧脬脰脵脺脼腅腇腊腌腒腗腠腡腧腨腩腭腯腷膁膐膄膅膆膋膎膖膘膛膞膢膮膲膴膻臋臃臅臊臎臏臕臗臛臝臞臡臤臫臬臰臱臲臵臶臸臹臽臿舀舃舏舓舔舙舚舝舡舢舨舲舴舺艃艄艅艆"],
+["8fd7a1","艋艎艏艑艖艜艠艣艧艭艴艻艽艿芀芁芃芄芇芉芊芎芑芔芖芘芚芛芠芡芣芤芧芨芩芪芮芰芲芴芷芺芼芾芿苆苐苕苚苠苢苤苨苪苭苯苶苷苽苾茀茁茇茈茊茋荔茛茝茞茟茡茢茬茭茮茰茳茷茺茼茽荂荃荄荇荍荎荑荕荖荗荰荸"],
+["8fd8a1","荽荿莀莂莄莆莍莒莔莕莘莙莛莜莝莦莧莩莬莾莿菀菇菉菏菐菑菔菝荓菨菪菶菸菹菼萁萆萊萏萑萕萙莭萯萹葅葇葈葊葍葏葑葒葖葘葙葚葜葠葤葥葧葪葰葳葴葶葸葼葽蒁蒅蒒蒓蒕蒞蒦蒨蒩蒪蒯蒱蒴蒺蒽蒾蓀蓂蓇蓈蓌蓏蓓"],
+["8fd9a1","蓜蓧蓪蓯蓰蓱蓲蓷蔲蓺蓻蓽蔂蔃蔇蔌蔎蔐蔜蔞蔢蔣蔤蔥蔧蔪蔫蔯蔳蔴蔶蔿蕆蕏",4,"蕖蕙蕜",6,"蕤蕫蕯蕹蕺蕻蕽蕿薁薅薆薉薋薌薏薓薘薝薟薠薢薥薧薴薶薷薸薼薽薾薿藂藇藊藋藎薭藘藚藟藠藦藨藭藳藶藼"],
+["8fdaa1","藿蘀蘄蘅蘍蘎蘐蘑蘒蘘蘙蘛蘞蘡蘧蘩蘶蘸蘺蘼蘽虀虂虆虒虓虖虗虘虙虝虠",4,"虩虬虯虵虶虷虺蚍蚑蚖蚘蚚蚜蚡蚦蚧蚨蚭蚱蚳蚴蚵蚷蚸蚹蚿蛀蛁蛃蛅蛑蛒蛕蛗蛚蛜蛠蛣蛥蛧蚈蛺蛼蛽蜄蜅蜇蜋蜎蜏蜐蜓蜔蜙蜞蜟蜡蜣"],
+["8fdba1","蜨蜮蜯蜱蜲蜹蜺蜼蜽蜾蝀蝃蝅蝍蝘蝝蝡蝤蝥蝯蝱蝲蝻螃",6,"螋螌螐螓螕螗螘螙螞螠螣螧螬螭螮螱螵螾螿蟁蟈蟉蟊蟎蟕蟖蟙蟚蟜蟟蟢蟣蟤蟪蟫蟭蟱蟳蟸蟺蟿蠁蠃蠆蠉蠊蠋蠐蠙蠒蠓蠔蠘蠚蠛蠜蠞蠟蠨蠭蠮蠰蠲蠵"],
+["8fdca1","蠺蠼衁衃衅衈衉衊衋衎衑衕衖衘衚衜衟衠衤衩衱衹衻袀袘袚袛袜袟袠袨袪袺袽袾裀裊",4,"裑裒裓裛裞裧裯裰裱裵裷褁褆褍褎褏褕褖褘褙褚褜褠褦褧褨褰褱褲褵褹褺褾襀襂襅襆襉襏襒襗襚襛襜襡襢襣襫襮襰襳襵襺"],
+["8fdda1","襻襼襽覉覍覐覔覕覛覜覟覠覥覰覴覵覶覷覼觔",4,"觥觩觫觭觱觳觶觹觽觿訄訅訇訏訑訒訔訕訞訠訢訤訦訫訬訯訵訷訽訾詀詃詅詇詉詍詎詓詖詗詘詜詝詡詥詧詵詶詷詹詺詻詾詿誀誃誆誋誏誐誒誖誗誙誟誧誩誮誯誳"],
+["8fdea1","誶誷誻誾諃諆諈諉諊諑諓諔諕諗諝諟諬諰諴諵諶諼諿謅謆謋謑謜謞謟謊謭謰謷謼譂",4,"譈譒譓譔譙譍譞譣譭譶譸譹譼譾讁讄讅讋讍讏讔讕讜讞讟谸谹谽谾豅豇豉豋豏豑豓豔豗豘豛豝豙豣豤豦豨豩豭豳豵豶豻豾貆"],
+["8fdfa1","貇貋貐貒貓貙貛貜貤貹貺賅賆賉賋賏賖賕賙賝賡賨賬賯賰賲賵賷賸賾賿贁贃贉贒贗贛赥赩赬赮赿趂趄趈趍趐趑趕趞趟趠趦趫趬趯趲趵趷趹趻跀跅跆跇跈跊跎跑跔跕跗跙跤跥跧跬跰趼跱跲跴跽踁踄踅踆踋踑踔踖踠踡踢"],
+["8fe0a1","踣踦踧踱踳踶踷踸踹踽蹀蹁蹋蹍蹎蹏蹔蹛蹜蹝蹞蹡蹢蹩蹬蹭蹯蹰蹱蹹蹺蹻躂躃躉躐躒躕躚躛躝躞躢躧躩躭躮躳躵躺躻軀軁軃軄軇軏軑軔軜軨軮軰軱軷軹軺軭輀輂輇輈輏輐輖輗輘輞輠輡輣輥輧輨輬輭輮輴輵輶輷輺轀轁"],
+["8fe1a1","轃轇轏轑",4,"轘轝轞轥辝辠辡辤辥辦辵辶辸达迀迁迆迊迋迍运迒迓迕迠迣迤迨迮迱迵迶迻迾适逄逈逌逘逛逨逩逯逪逬逭逳逴逷逿遃遄遌遛遝遢遦遧遬遰遴遹邅邈邋邌邎邐邕邗邘邙邛邠邡邢邥邰邲邳邴邶邽郌邾郃"],
+["8fe2a1","郄郅郇郈郕郗郘郙郜郝郟郥郒郶郫郯郰郴郾郿鄀鄄鄅鄆鄈鄍鄐鄔鄖鄗鄘鄚鄜鄞鄠鄥鄢鄣鄧鄩鄮鄯鄱鄴鄶鄷鄹鄺鄼鄽酃酇酈酏酓酗酙酚酛酡酤酧酭酴酹酺酻醁醃醅醆醊醎醑醓醔醕醘醞醡醦醨醬醭醮醰醱醲醳醶醻醼醽醿"],
+["8fe3a1","釂釃釅釓釔釗釙釚釞釤釥釩釪釬",5,"釷釹釻釽鈀鈁鈄鈅鈆鈇鈉鈊鈌鈐鈒鈓鈖鈘鈜鈝鈣鈤鈥鈦鈨鈮鈯鈰鈳鈵鈶鈸鈹鈺鈼鈾鉀鉂鉃鉆鉇鉊鉍鉎鉏鉑鉘鉙鉜鉝鉠鉡鉥鉧鉨鉩鉮鉯鉰鉵",4,"鉻鉼鉽鉿銈銉銊銍銎銒銗"],
+["8fe4a1","銙銟銠銤銥銧銨銫銯銲銶銸銺銻銼銽銿",4,"鋅鋆鋇鋈鋋鋌鋍鋎鋐鋓鋕鋗鋘鋙鋜鋝鋟鋠鋡鋣鋥鋧鋨鋬鋮鋰鋹鋻鋿錀錂錈錍錑錔錕錜錝錞錟錡錤錥錧錩錪錳錴錶錷鍇鍈鍉鍐鍑鍒鍕鍗鍘鍚鍞鍤鍥鍧鍩鍪鍭鍯鍰鍱鍳鍴鍶"],
+["8fe5a1","鍺鍽鍿鎀鎁鎂鎈鎊鎋鎍鎏鎒鎕鎘鎛鎞鎡鎣鎤鎦鎨鎫鎴鎵鎶鎺鎩鏁鏄鏅鏆鏇鏉",4,"鏓鏙鏜鏞鏟鏢鏦鏧鏹鏷鏸鏺鏻鏽鐁鐂鐄鐈鐉鐍鐎鐏鐕鐖鐗鐟鐮鐯鐱鐲鐳鐴鐻鐿鐽鑃鑅鑈鑊鑌鑕鑙鑜鑟鑡鑣鑨鑫鑭鑮鑯鑱鑲钄钃镸镹"],
+["8fe6a1","镾閄閈閌閍閎閝閞閟閡閦閩閫閬閴閶閺閽閿闆闈闉闋闐闑闒闓闙闚闝闞闟闠闤闦阝阞阢阤阥阦阬阱阳阷阸阹阺阼阽陁陒陔陖陗陘陡陮陴陻陼陾陿隁隂隃隄隉隑隖隚隝隟隤隥隦隩隮隯隳隺雊雒嶲雘雚雝雞雟雩雯雱雺霂"],
+["8fe7a1","霃霅霉霚霛霝霡霢霣霨霱霳靁靃靊靎靏靕靗靘靚靛靣靧靪靮靳靶靷靸靻靽靿鞀鞉鞕鞖鞗鞙鞚鞞鞟鞢鞬鞮鞱鞲鞵鞶鞸鞹鞺鞼鞾鞿韁韄韅韇韉韊韌韍韎韐韑韔韗韘韙韝韞韠韛韡韤韯韱韴韷韸韺頇頊頙頍頎頔頖頜頞頠頣頦"],
+["8fe8a1","頫頮頯頰頲頳頵頥頾顄顇顊顑顒顓顖顗顙顚顢顣顥顦顪顬颫颭颮颰颴颷颸颺颻颿飂飅飈飌飡飣飥飦飧飪飳飶餂餇餈餑餕餖餗餚餛餜餟餢餦餧餫餱",4,"餹餺餻餼饀饁饆饇饈饍饎饔饘饙饛饜饞饟饠馛馝馟馦馰馱馲馵"],
+["8fe9a1","馹馺馽馿駃駉駓駔駙駚駜駞駧駪駫駬駰駴駵駹駽駾騂騃騄騋騌騐騑騖騞騠騢騣騤騧騭騮騳騵騶騸驇驁驄驊驋驌驎驑驔驖驝骪骬骮骯骲骴骵骶骹骻骾骿髁髃髆髈髎髐髒髕髖髗髛髜髠髤髥髧髩髬髲髳髵髹髺髽髿",4],
+["8feaa1","鬄鬅鬈鬉鬋鬌鬍鬎鬐鬒鬖鬙鬛鬜鬠鬦鬫鬭鬳鬴鬵鬷鬹鬺鬽魈魋魌魕魖魗魛魞魡魣魥魦魨魪",4,"魳魵魷魸魹魿鮀鮄鮅鮆鮇鮉鮊鮋鮍鮏鮐鮔鮚鮝鮞鮦鮧鮩鮬鮰鮱鮲鮷鮸鮻鮼鮾鮿鯁鯇鯈鯎鯐鯗鯘鯝鯟鯥鯧鯪鯫鯯鯳鯷鯸"],
+["8feba1","鯹鯺鯽鯿鰀鰂鰋鰏鰑鰖鰘鰙鰚鰜鰞鰢鰣鰦",4,"鰱鰵鰶鰷鰽鱁鱃鱄鱅鱉鱊鱎鱏鱐鱓鱔鱖鱘鱛鱝鱞鱟鱣鱩鱪鱜鱫鱨鱮鱰鱲鱵鱷鱻鳦鳲鳷鳹鴋鴂鴑鴗鴘鴜鴝鴞鴯鴰鴲鴳鴴鴺鴼鵅鴽鵂鵃鵇鵊鵓鵔鵟鵣鵢鵥鵩鵪鵫鵰鵶鵷鵻"],
+["8feca1","鵼鵾鶃鶄鶆鶊鶍鶎鶒鶓鶕鶖鶗鶘鶡鶪鶬鶮鶱鶵鶹鶼鶿鷃鷇鷉鷊鷔鷕鷖鷗鷚鷞鷟鷠鷥鷧鷩鷫鷮鷰鷳鷴鷾鸊鸂鸇鸎鸐鸑鸒鸕鸖鸙鸜鸝鹺鹻鹼麀麂麃麄麅麇麎麏麖麘麛麞麤麨麬麮麯麰麳麴麵黆黈黋黕黟黤黧黬黭黮黰黱黲黵"],
+["8feda1","黸黿鼂鼃鼉鼏鼐鼑鼒鼔鼖鼗鼙鼚鼛鼟鼢鼦鼪鼫鼯鼱鼲鼴鼷鼹鼺鼼鼽鼿齁齃",4,"齓齕齖齗齘齚齝齞齨齩齭",4,"齳齵齺齽龏龐龑龒龔龖龗龞龡龢龣龥"]
+]
diff --git a/backend/node_modules/raw-body/node_modules/iconv-lite/encodings/tables/gb18030-ranges.json b/backend/node_modules/raw-body/node_modules/iconv-lite/encodings/tables/gb18030-ranges.json
new file mode 100644
index 0000000..85c6934
--- /dev/null
+++ b/backend/node_modules/raw-body/node_modules/iconv-lite/encodings/tables/gb18030-ranges.json
@@ -0,0 +1 @@
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\ No newline at end of file
diff --git a/backend/node_modules/raw-body/node_modules/iconv-lite/encodings/tables/gbk-added.json b/backend/node_modules/raw-body/node_modules/iconv-lite/encodings/tables/gbk-added.json
new file mode 100644
index 0000000..b742e36
--- /dev/null
+++ b/backend/node_modules/raw-body/node_modules/iconv-lite/encodings/tables/gbk-added.json
@@ -0,0 +1,56 @@
+[
+["a140","",62],
+["a180","",32],
+["a240","",62],
+["a280","",32],
+["a2ab","",5],
+["a2e3","€"],
+["a2ef",""],
+["a2fd",""],
+["a340","",62],
+["a380","",31,"　"],
+["a440","",62],
+["a480","",32],
+["a4f4","",10],
+["a540","",62],
+["a580","",32],
+["a5f7","",7],
+["a640","",62],
+["a680","",32],
+["a6b9","",7],
+["a6d9","",6],
+["a6ec",""],
+["a6f3",""],
+["a6f6","",8],
+["a740","",62],
+["a780","",32],
+["a7c2","",14],
+["a7f2","",12],
+["a896","",10],
+["a8bc","ḿ"],
+["a8bf","ǹ"],
+["a8c1",""],
+["a8ea","",20],
+["a958",""],
+["a95b",""],
+["a95d",""],
+["a989","〾⿰",11],
+["a997","",12],
+["a9f0","",14],
+["aaa1","",93],
+["aba1","",93],
+["aca1","",93],
+["ada1","",93],
+["aea1","",93],
+["afa1","",93],
+["d7fa","",4],
+["f8a1","",93],
+["f9a1","",93],
+["faa1","",93],
+["fba1","",93],
+["fca1","",93],
+["fda1","",93],
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+["fe80","䜣䜩䝼䞍⻊䥇䥺䥽䦂䦃䦅䦆䦟䦛䦷䦶䲣䲟䲠䲡䱷䲢䴓",6,"䶮",93],
+["8135f437",""]
+]
diff --git a/backend/node_modules/raw-body/node_modules/iconv-lite/encodings/tables/shiftjis.json b/backend/node_modules/raw-body/node_modules/iconv-lite/encodings/tables/shiftjis.json
new file mode 100644
index 0000000..5a3a43c
--- /dev/null
+++ b/backend/node_modules/raw-body/node_modules/iconv-lite/encodings/tables/shiftjis.json
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+[
+["0","\u0000",128],
+["a1","｡",62],
+["8140","　、。，．・：；？！゛゜´｀¨＾￣＿ヽヾゝゞ〃仝々〆〇ー―‐／＼～∥｜…‥‘’“”（）〔〕［］｛｝〈",9,"＋－±×"],
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+["81b8","∈∋⊆⊇⊂⊃∪∩"],
+["81c8","∧∨￢⇒⇔∀∃"],
+["81da","∠⊥⌒∂∇≡≒≪≫√∽∝∵∫∬"],
+["81f0","ʼn♯♭♪†‡¶"],
+["81fc","◯"],
+["824f","０",9],
+["8260","Ａ",25],
+["8281","ａ",25],
+["829f","ぁ",82],
+["8340","ァ",62],
+["8380","ム",22],
+["839f","Α",16,"Σ",6],
+["83bf","α",16,"σ",6],
+["8440","А",5,"ЁЖ",25],
+["8470","а",5,"ёж",7],
+["8480","о",17],
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+["e540","蕁蘂蕋蕕薀薤薈薑薊薨蕭薔薛藪薇薜蕷蕾薐藉薺藏薹藐藕藝藥藜藹蘊蘓蘋藾藺蘆蘢蘚蘰蘿虍乕虔號虧虱蚓蚣蚩蚪蚋蚌蚶蚯蛄蛆蚰蛉蠣蚫蛔蛞蛩蛬"],
+["e580","蛟蛛蛯蜒蜆蜈蜀蜃蛻蜑蜉蜍蛹蜊蜴蜿蜷蜻蜥蜩蜚蝠蝟蝸蝌蝎蝴蝗蝨蝮蝙蝓蝣蝪蠅螢螟螂螯蟋螽蟀蟐雖螫蟄螳蟇蟆螻蟯蟲蟠蠏蠍蟾蟶蟷蠎蟒蠑蠖蠕蠢蠡蠱蠶蠹蠧蠻衄衂衒衙衞衢衫袁衾袞衵衽袵衲袂袗袒袮袙袢袍袤袰袿袱裃裄裔裘裙裝裹褂裼裴裨裲褄褌褊褓襃褞褥褪褫襁襄褻褶褸襌褝襠襞"],
+["e640","襦襤襭襪襯襴襷襾覃覈覊覓覘覡覩覦覬覯覲覺覽覿觀觚觜觝觧觴觸訃訖訐訌訛訝訥訶詁詛詒詆詈詼詭詬詢誅誂誄誨誡誑誥誦誚誣諄諍諂諚諫諳諧"],
+["e680","諤諱謔諠諢諷諞諛謌謇謚諡謖謐謗謠謳鞫謦謫謾謨譁譌譏譎證譖譛譚譫譟譬譯譴譽讀讌讎讒讓讖讙讚谺豁谿豈豌豎豐豕豢豬豸豺貂貉貅貊貍貎貔豼貘戝貭貪貽貲貳貮貶賈賁賤賣賚賽賺賻贄贅贊贇贏贍贐齎贓賍贔贖赧赭赱赳趁趙跂趾趺跏跚跖跌跛跋跪跫跟跣跼踈踉跿踝踞踐踟蹂踵踰踴蹊"],
+["e740","蹇蹉蹌蹐蹈蹙蹤蹠踪蹣蹕蹶蹲蹼躁躇躅躄躋躊躓躑躔躙躪躡躬躰軆躱躾軅軈軋軛軣軼軻軫軾輊輅輕輒輙輓輜輟輛輌輦輳輻輹轅轂輾轌轉轆轎轗轜"],
+["e780","轢轣轤辜辟辣辭辯辷迚迥迢迪迯邇迴逅迹迺逑逕逡逍逞逖逋逧逶逵逹迸遏遐遑遒逎遉逾遖遘遞遨遯遶隨遲邂遽邁邀邊邉邏邨邯邱邵郢郤扈郛鄂鄒鄙鄲鄰酊酖酘酣酥酩酳酲醋醉醂醢醫醯醪醵醴醺釀釁釉釋釐釖釟釡釛釼釵釶鈞釿鈔鈬鈕鈑鉞鉗鉅鉉鉤鉈銕鈿鉋鉐銜銖銓銛鉚鋏銹銷鋩錏鋺鍄錮"],
+["e840","錙錢錚錣錺錵錻鍜鍠鍼鍮鍖鎰鎬鎭鎔鎹鏖鏗鏨鏥鏘鏃鏝鏐鏈鏤鐚鐔鐓鐃鐇鐐鐶鐫鐵鐡鐺鑁鑒鑄鑛鑠鑢鑞鑪鈩鑰鑵鑷鑽鑚鑼鑾钁鑿閂閇閊閔閖閘閙"],
+["e880","閠閨閧閭閼閻閹閾闊濶闃闍闌闕闔闖關闡闥闢阡阨阮阯陂陌陏陋陷陜陞陝陟陦陲陬隍隘隕隗險隧隱隲隰隴隶隸隹雎雋雉雍襍雜霍雕雹霄霆霈霓霎霑霏霖霙霤霪霰霹霽霾靄靆靈靂靉靜靠靤靦靨勒靫靱靹鞅靼鞁靺鞆鞋鞏鞐鞜鞨鞦鞣鞳鞴韃韆韈韋韜韭齏韲竟韶韵頏頌頸頤頡頷頽顆顏顋顫顯顰"],
+["e940","顱顴顳颪颯颱颶飄飃飆飩飫餃餉餒餔餘餡餝餞餤餠餬餮餽餾饂饉饅饐饋饑饒饌饕馗馘馥馭馮馼駟駛駝駘駑駭駮駱駲駻駸騁騏騅駢騙騫騷驅驂驀驃"],
+["e980","騾驕驍驛驗驟驢驥驤驩驫驪骭骰骼髀髏髑髓體髞髟髢髣髦髯髫髮髴髱髷髻鬆鬘鬚鬟鬢鬣鬥鬧鬨鬩鬪鬮鬯鬲魄魃魏魍魎魑魘魴鮓鮃鮑鮖鮗鮟鮠鮨鮴鯀鯊鮹鯆鯏鯑鯒鯣鯢鯤鯔鯡鰺鯲鯱鯰鰕鰔鰉鰓鰌鰆鰈鰒鰊鰄鰮鰛鰥鰤鰡鰰鱇鰲鱆鰾鱚鱠鱧鱶鱸鳧鳬鳰鴉鴈鳫鴃鴆鴪鴦鶯鴣鴟鵄鴕鴒鵁鴿鴾鵆鵈"],
+["ea40","鵝鵞鵤鵑鵐鵙鵲鶉鶇鶫鵯鵺鶚鶤鶩鶲鷄鷁鶻鶸鶺鷆鷏鷂鷙鷓鷸鷦鷭鷯鷽鸚鸛鸞鹵鹹鹽麁麈麋麌麒麕麑麝麥麩麸麪麭靡黌黎黏黐黔黜點黝黠黥黨黯"],
+["ea80","黴黶黷黹黻黼黽鼇鼈皷鼕鼡鼬鼾齊齒齔齣齟齠齡齦齧齬齪齷齲齶龕龜龠堯槇遙瑤凜熙"],
+["ed40","纊褜鍈銈蓜俉炻昱棈鋹曻彅丨仡仼伀伃伹佖侒侊侚侔俍偀倢俿倞偆偰偂傔僴僘兊兤冝冾凬刕劜劦勀勛匀匇匤卲厓厲叝﨎咜咊咩哿喆坙坥垬埈埇﨏"],
+["ed80","塚增墲夋奓奛奝奣妤妺孖寀甯寘寬尞岦岺峵崧嵓﨑嵂嵭嶸嶹巐弡弴彧德忞恝悅悊惞惕愠惲愑愷愰憘戓抦揵摠撝擎敎昀昕昻昉昮昞昤晥晗晙晴晳暙暠暲暿曺朎朗杦枻桒柀栁桄棏﨓楨﨔榘槢樰橫橆橳橾櫢櫤毖氿汜沆汯泚洄涇浯涖涬淏淸淲淼渹湜渧渼溿澈澵濵瀅瀇瀨炅炫焏焄煜煆煇凞燁燾犱"],
+["ee40","犾猤猪獷玽珉珖珣珒琇珵琦琪琩琮瑢璉璟甁畯皂皜皞皛皦益睆劯砡硎硤硺礰礼神祥禔福禛竑竧靖竫箞精絈絜綷綠緖繒罇羡羽茁荢荿菇菶葈蒴蕓蕙"],
+["ee80","蕫﨟薰蘒﨡蠇裵訒訷詹誧誾諟諸諶譓譿賰賴贒赶﨣軏﨤逸遧郞都鄕鄧釚釗釞釭釮釤釥鈆鈐鈊鈺鉀鈼鉎鉙鉑鈹鉧銧鉷鉸鋧鋗鋙鋐﨧鋕鋠鋓錥錡鋻﨨錞鋿錝錂鍰鍗鎤鏆鏞鏸鐱鑅鑈閒隆﨩隝隯霳霻靃靍靏靑靕顗顥飯飼餧館馞驎髙髜魵魲鮏鮱鮻鰀鵰鵫鶴鸙黑"],
+["eeef","ⅰ",9,"￢￤＇＂"],
+["f040","",62],
+["f080","",124],
+["f140","",62],
+["f180","",124],
+["f240","",62],
+["f280","",124],
+["f340","",62],
+["f380","",124],
+["f440","",62],
+["f480","",124],
+["f540","",62],
+["f580","",124],
+["f640","",62],
+["f680","",124],
+["f740","",62],
+["f780","",124],
+["f840","",62],
+["f880","",124],
+["f940",""],
+["fa40","ⅰ",9,"Ⅰ",9,"￢￤＇＂㈱№℡∵纊褜鍈銈蓜俉炻昱棈鋹曻彅丨仡仼伀伃伹佖侒侊侚侔俍偀倢俿倞偆偰偂傔僴僘兊"],
+["fa80","兤冝冾凬刕劜劦勀勛匀匇匤卲厓厲叝﨎咜咊咩哿喆坙坥垬埈埇﨏塚增墲夋奓奛奝奣妤妺孖寀甯寘寬尞岦岺峵崧嵓﨑嵂嵭嶸嶹巐弡弴彧德忞恝悅悊惞惕愠惲愑愷愰憘戓抦揵摠撝擎敎昀昕昻昉昮昞昤晥晗晙晴晳暙暠暲暿曺朎朗杦枻桒柀栁桄棏﨓楨﨔榘槢樰橫橆橳橾櫢櫤毖氿汜沆汯泚洄涇浯"],
+["fb40","涖涬淏淸淲淼渹湜渧渼溿澈澵濵瀅瀇瀨炅炫焏焄煜煆煇凞燁燾犱犾猤猪獷玽珉珖珣珒琇珵琦琪琩琮瑢璉璟甁畯皂皜皞皛皦益睆劯砡硎硤硺礰礼神"],
+["fb80","祥禔福禛竑竧靖竫箞精絈絜綷綠緖繒罇羡羽茁荢荿菇菶葈蒴蕓蕙蕫﨟薰蘒﨡蠇裵訒訷詹誧誾諟諸諶譓譿賰賴贒赶﨣軏﨤逸遧郞都鄕鄧釚釗釞釭釮釤釥鈆鈐鈊鈺鉀鈼鉎鉙鉑鈹鉧銧鉷鉸鋧鋗鋙鋐﨧鋕鋠鋓錥錡鋻﨨錞鋿錝錂鍰鍗鎤鏆鏞鏸鐱鑅鑈閒隆﨩隝隯霳霻靃靍靏靑靕顗顥飯飼餧館馞驎髙"],
+["fc40","髜魵魲鮏鮱鮻鰀鵰鵫鶴鸙黑"]
+]
diff --git a/backend/node_modules/raw-body/node_modules/iconv-lite/encodings/utf16.js b/backend/node_modules/raw-body/node_modules/iconv-lite/encodings/utf16.js
new file mode 100644
index 0000000..ae60d98
--- /dev/null
+++ b/backend/node_modules/raw-body/node_modules/iconv-lite/encodings/utf16.js
@@ -0,0 +1,187 @@
+"use strict"
+var Buffer = require("safer-buffer").Buffer
+
+// Note: UTF16-LE (or UCS2) codec is Node.js native. See encodings/internal.js
+
+// == UTF16-BE codec. ==========================================================
+
+exports.utf16be = Utf16BECodec
+function Utf16BECodec () {
+}
+
+Utf16BECodec.prototype.encoder = Utf16BEEncoder
+Utf16BECodec.prototype.decoder = Utf16BEDecoder
+Utf16BECodec.prototype.bomAware = true
+
+// -- Encoding
+
+function Utf16BEEncoder () {
+}
+
+Utf16BEEncoder.prototype.write = function (str) {
+  var buf = Buffer.from(str, "ucs2")
+  for (var i = 0; i < buf.length; i += 2) {
+    var tmp = buf[i]; buf[i] = buf[i + 1]; buf[i + 1] = tmp
+  }
+  return buf
+}
+
+Utf16BEEncoder.prototype.end = function () {
+}
+
+// -- Decoding
+
+function Utf16BEDecoder () {
+  this.overflowByte = -1
+}
+
+Utf16BEDecoder.prototype.write = function (buf) {
+  if (buf.length == 0) { return "" }
+
+  var buf2 = Buffer.alloc(buf.length + 1)
+  var i = 0; var j = 0
+
+  if (this.overflowByte !== -1) {
+    buf2[0] = buf[0]
+    buf2[1] = this.overflowByte
+    i = 1; j = 2
+  }
+
+  for (; i < buf.length - 1; i += 2, j += 2) {
+    buf2[j] = buf[i + 1]
+    buf2[j + 1] = buf[i]
+  }
+
+  this.overflowByte = (i == buf.length - 1) ? buf[buf.length - 1] : -1
+
+  return buf2.slice(0, j).toString("ucs2")
+}
+
+Utf16BEDecoder.prototype.end = function () {
+  this.overflowByte = -1
+}
+
+// == UTF-16 codec =============================================================
+// Decoder chooses automatically from UTF-16LE and UTF-16BE using BOM and space-based heuristic.
+// Defaults to UTF-16LE, as it's prevalent and default in Node.
+// http://en.wikipedia.org/wiki/UTF-16 and http://encoding.spec.whatwg.org/#utf-16le
+// Decoder default can be changed: iconv.decode(buf, 'utf16', {defaultEncoding: 'utf-16be'});
+
+// Encoder uses UTF-16LE and prepends BOM (which can be overridden with addBOM: false).
+
+exports.utf16 = Utf16Codec
+function Utf16Codec (codecOptions, iconv) {
+  this.iconv = iconv
+}
+
+Utf16Codec.prototype.encoder = Utf16Encoder
+Utf16Codec.prototype.decoder = Utf16Decoder
+
+// -- Encoding (pass-through)
+
+function Utf16Encoder (options, codec) {
+  options = options || {}
+  if (options.addBOM === undefined) { options.addBOM = true }
+  this.encoder = codec.iconv.getEncoder("utf-16le", options)
+}
+
+Utf16Encoder.prototype.write = function (str) {
+  return this.encoder.write(str)
+}
+
+Utf16Encoder.prototype.end = function () {
+  return this.encoder.end()
+}
+
+// -- Decoding
+
+function Utf16Decoder (options, codec) {
+  this.decoder = null
+  this.initialBufs = []
+  this.initialBufsLen = 0
+
+  this.options = options || {}
+  this.iconv = codec.iconv
+}
+
+Utf16Decoder.prototype.write = function (buf) {
+  if (!this.decoder) {
+    // Codec is not chosen yet. Accumulate initial bytes.
+    this.initialBufs.push(buf)
+    this.initialBufsLen += buf.length
+
+    if (this.initialBufsLen < 16) // We need more bytes to use space heuristic (see below)
+    { return "" }
+
+    // We have enough bytes -> detect endianness.
+    var encoding = detectEncoding(this.initialBufs, this.options.defaultEncoding)
+    this.decoder = this.iconv.getDecoder(encoding, this.options)
+
+    var resStr = ""
+    for (var i = 0; i < this.initialBufs.length; i++) { resStr += this.decoder.write(this.initialBufs[i]) }
+
+    this.initialBufs.length = this.initialBufsLen = 0
+    return resStr
+  }
+
+  return this.decoder.write(buf)
+}
+
+Utf16Decoder.prototype.end = function () {
+  if (!this.decoder) {
+    var encoding = detectEncoding(this.initialBufs, this.options.defaultEncoding)
+    this.decoder = this.iconv.getDecoder(encoding, this.options)
+
+    var resStr = ""
+    for (var i = 0; i < this.initialBufs.length; i++) { resStr += this.decoder.write(this.initialBufs[i]) }
+
+    var trail = this.decoder.end()
+    if (trail) { resStr += trail }
+
+    this.initialBufs.length = this.initialBufsLen = 0
+    return resStr
+  }
+  return this.decoder.end()
+}
+
+function detectEncoding (bufs, defaultEncoding) {
+  var b = []
+  var charsProcessed = 0
+  // Number of ASCII chars when decoded as LE or BE.
+  var asciiCharsLE = 0
+  var asciiCharsBE = 0
+
+  outerLoop:
+  for (var i = 0; i < bufs.length; i++) {
+    var buf = bufs[i]
+    for (var j = 0; j < buf.length; j++) {
+      b.push(buf[j])
+      if (b.length === 2) {
+        if (charsProcessed === 0) {
+          // Check BOM first.
+          if (b[0] === 0xFF && b[1] === 0xFE) return "utf-16le"
+          if (b[0] === 0xFE && b[1] === 0xFF) return "utf-16be"
+        }
+
+        if (b[0] === 0 && b[1] !== 0) asciiCharsBE++
+        if (b[0] !== 0 && b[1] === 0) asciiCharsLE++
+
+        b.length = 0
+        charsProcessed++
+
+        if (charsProcessed >= 100) {
+          break outerLoop
+        }
+      }
+    }
+  }
+
+  // Make decisions.
+  // Most of the time, the content has ASCII chars (U+00**), but the opposite (U+**00) is uncommon.
+  // So, we count ASCII as if it was LE or BE, and decide from that.
+  if (asciiCharsBE > asciiCharsLE) return "utf-16be"
+  if (asciiCharsBE < asciiCharsLE) return "utf-16le"
+
+  // Couldn't decide (likely all zeros or not enough data).
+  return defaultEncoding || "utf-16le"
+}
diff --git a/backend/node_modules/raw-body/node_modules/iconv-lite/encodings/utf32.js b/backend/node_modules/raw-body/node_modules/iconv-lite/encodings/utf32.js
new file mode 100644
index 0000000..7231789
--- /dev/null
+++ b/backend/node_modules/raw-body/node_modules/iconv-lite/encodings/utf32.js
@@ -0,0 +1,307 @@
+"use strict"
+
+var Buffer = require("safer-buffer").Buffer
+
+// == UTF32-LE/BE codec. ==========================================================
+
+exports._utf32 = Utf32Codec
+
+function Utf32Codec (codecOptions, iconv) {
+  this.iconv = iconv
+  this.bomAware = true
+  this.isLE = codecOptions.isLE
+}
+
+exports.utf32le = { type: "_utf32", isLE: true }
+exports.utf32be = { type: "_utf32", isLE: false }
+
+// Aliases
+exports.ucs4le = "utf32le"
+exports.ucs4be = "utf32be"
+
+Utf32Codec.prototype.encoder = Utf32Encoder
+Utf32Codec.prototype.decoder = Utf32Decoder
+
+// -- Encoding
+
+function Utf32Encoder (options, codec) {
+  this.isLE = codec.isLE
+  this.highSurrogate = 0
+}
+
+Utf32Encoder.prototype.write = function (str) {
+  var src = Buffer.from(str, "ucs2")
+  var dst = Buffer.alloc(src.length * 2)
+  var write32 = this.isLE ? dst.writeUInt32LE : dst.writeUInt32BE
+  var offset = 0
+
+  for (var i = 0; i < src.length; i += 2) {
+    var code = src.readUInt16LE(i)
+    var isHighSurrogate = (code >= 0xD800 && code < 0xDC00)
+    var isLowSurrogate = (code >= 0xDC00 && code < 0xE000)
+
+    if (this.highSurrogate) {
+      if (isHighSurrogate || !isLowSurrogate) {
+        // There shouldn't be two high surrogates in a row, nor a high surrogate which isn't followed by a low
+        // surrogate. If this happens, keep the pending high surrogate as a stand-alone semi-invalid character
+        // (technically wrong, but expected by some applications, like Windows file names).
+        write32.call(dst, this.highSurrogate, offset)
+        offset += 4
+      } else {
+        // Create 32-bit value from high and low surrogates;
+        var codepoint = (((this.highSurrogate - 0xD800) << 10) | (code - 0xDC00)) + 0x10000
+
+        write32.call(dst, codepoint, offset)
+        offset += 4
+        this.highSurrogate = 0
+
+        continue
+      }
+    }
+
+    if (isHighSurrogate) { this.highSurrogate = code } else {
+      // Even if the current character is a low surrogate, with no previous high surrogate, we'll
+      // encode it as a semi-invalid stand-alone character for the same reasons expressed above for
+      // unpaired high surrogates.
+      write32.call(dst, code, offset)
+      offset += 4
+      this.highSurrogate = 0
+    }
+  }
+
+  if (offset < dst.length) { dst = dst.slice(0, offset) }
+
+  return dst
+}
+
+Utf32Encoder.prototype.end = function () {
+  // Treat any leftover high surrogate as a semi-valid independent character.
+  if (!this.highSurrogate) { return }
+
+  var buf = Buffer.alloc(4)
+
+  if (this.isLE) { buf.writeUInt32LE(this.highSurrogate, 0) } else { buf.writeUInt32BE(this.highSurrogate, 0) }
+
+  this.highSurrogate = 0
+
+  return buf
+}
+
+// -- Decoding
+
+function Utf32Decoder (options, codec) {
+  this.isLE = codec.isLE
+  this.badChar = codec.iconv.defaultCharUnicode.charCodeAt(0)
+  this.overflow = []
+}
+
+Utf32Decoder.prototype.write = function (src) {
+  if (src.length === 0) { return "" }
+
+  var i = 0
+  var codepoint = 0
+  var dst = Buffer.alloc(src.length + 4)
+  var offset = 0
+  var isLE = this.isLE
+  var overflow = this.overflow
+  var badChar = this.badChar
+
+  if (overflow.length > 0) {
+    for (; i < src.length && overflow.length < 4; i++) { overflow.push(src[i]) }
+
+    if (overflow.length === 4) {
+      // NOTE: codepoint is a signed int32 and can be negative.
+      // NOTE: We copied this block from below to help V8 optimize it (it works with array, not buffer).
+      if (isLE) {
+        codepoint = overflow[i] | (overflow[i + 1] << 8) | (overflow[i + 2] << 16) | (overflow[i + 3] << 24)
+      } else {
+        codepoint = overflow[i + 3] | (overflow[i + 2] << 8) | (overflow[i + 1] << 16) | (overflow[i] << 24)
+      }
+      overflow.length = 0
+
+      offset = _writeCodepoint(dst, offset, codepoint, badChar)
+    }
+  }
+
+  // Main loop. Should be as optimized as possible.
+  for (; i < src.length - 3; i += 4) {
+    // NOTE: codepoint is a signed int32 and can be negative.
+    if (isLE) {
+      codepoint = src[i] | (src[i + 1] << 8) | (src[i + 2] << 16) | (src[i + 3] << 24)
+    } else {
+      codepoint = src[i + 3] | (src[i + 2] << 8) | (src[i + 1] << 16) | (src[i] << 24)
+    }
+    offset = _writeCodepoint(dst, offset, codepoint, badChar)
+  }
+
+  // Keep overflowing bytes.
+  for (; i < src.length; i++) {
+    overflow.push(src[i])
+  }
+
+  return dst.slice(0, offset).toString("ucs2")
+}
+
+function _writeCodepoint (dst, offset, codepoint, badChar) {
+  // NOTE: codepoint is signed int32 and can be negative. We keep it that way to help V8 with optimizations.
+  if (codepoint < 0 || codepoint > 0x10FFFF) {
+    // Not a valid Unicode codepoint
+    codepoint = badChar
+  }
+
+  // Ephemeral Planes: Write high surrogate.
+  if (codepoint >= 0x10000) {
+    codepoint -= 0x10000
+
+    var high = 0xD800 | (codepoint >> 10)
+    dst[offset++] = high & 0xff
+    dst[offset++] = high >> 8
+
+    // Low surrogate is written below.
+    var codepoint = 0xDC00 | (codepoint & 0x3FF)
+  }
+
+  // Write BMP char or low surrogate.
+  dst[offset++] = codepoint & 0xff
+  dst[offset++] = codepoint >> 8
+
+  return offset
+};
+
+Utf32Decoder.prototype.end = function () {
+  this.overflow.length = 0
+}
+
+// == UTF-32 Auto codec =============================================================
+// Decoder chooses automatically from UTF-32LE and UTF-32BE using BOM and space-based heuristic.
+// Defaults to UTF-32LE. http://en.wikipedia.org/wiki/UTF-32
+// Encoder/decoder default can be changed: iconv.decode(buf, 'utf32', {defaultEncoding: 'utf-32be'});
+
+// Encoder prepends BOM (which can be overridden with (addBOM: false}).
+
+exports.utf32 = Utf32AutoCodec
+exports.ucs4 = "utf32"
+
+function Utf32AutoCodec (options, iconv) {
+  this.iconv = iconv
+}
+
+Utf32AutoCodec.prototype.encoder = Utf32AutoEncoder
+Utf32AutoCodec.prototype.decoder = Utf32AutoDecoder
+
+// -- Encoding
+
+function Utf32AutoEncoder (options, codec) {
+  options = options || {}
+
+  if (options.addBOM === undefined) {
+    options.addBOM = true
+  }
+
+  this.encoder = codec.iconv.getEncoder(options.defaultEncoding || "utf-32le", options)
+}
+
+Utf32AutoEncoder.prototype.write = function (str) {
+  return this.encoder.write(str)
+}
+
+Utf32AutoEncoder.prototype.end = function () {
+  return this.encoder.end()
+}
+
+// -- Decoding
+
+function Utf32AutoDecoder (options, codec) {
+  this.decoder = null
+  this.initialBufs = []
+  this.initialBufsLen = 0
+  this.options = options || {}
+  this.iconv = codec.iconv
+}
+
+Utf32AutoDecoder.prototype.write = function (buf) {
+  if (!this.decoder) {
+    // Codec is not chosen yet. Accumulate initial bytes.
+    this.initialBufs.push(buf)
+    this.initialBufsLen += buf.length
+
+    if (this.initialBufsLen < 32) // We need more bytes to use space heuristic (see below)
+    { return "" }
+
+    // We have enough bytes -> detect endianness.
+    var encoding = detectEncoding(this.initialBufs, this.options.defaultEncoding)
+    this.decoder = this.iconv.getDecoder(encoding, this.options)
+
+    var resStr = ""
+    for (var i = 0; i < this.initialBufs.length; i++) { resStr += this.decoder.write(this.initialBufs[i]) }
+
+    this.initialBufs.length = this.initialBufsLen = 0
+    return resStr
+  }
+
+  return this.decoder.write(buf)
+}
+
+Utf32AutoDecoder.prototype.end = function () {
+  if (!this.decoder) {
+    var encoding = detectEncoding(this.initialBufs, this.options.defaultEncoding)
+    this.decoder = this.iconv.getDecoder(encoding, this.options)
+
+    var resStr = ""
+    for (var i = 0; i < this.initialBufs.length; i++) { resStr += this.decoder.write(this.initialBufs[i]) }
+
+    var trail = this.decoder.end()
+    if (trail) { resStr += trail }
+
+    this.initialBufs.length = this.initialBufsLen = 0
+    return resStr
+  }
+
+  return this.decoder.end()
+}
+
+function detectEncoding (bufs, defaultEncoding) {
+  var b = []
+  var charsProcessed = 0
+  var invalidLE = 0; var invalidBE = 0   // Number of invalid chars when decoded as LE or BE.
+  var bmpCharsLE = 0; var bmpCharsBE = 0 // Number of BMP chars when decoded as LE or BE.
+
+  outerLoop:
+  for (var i = 0; i < bufs.length; i++) {
+    var buf = bufs[i]
+    for (var j = 0; j < buf.length; j++) {
+      b.push(buf[j])
+      if (b.length === 4) {
+        if (charsProcessed === 0) {
+          // Check BOM first.
+          if (b[0] === 0xFF && b[1] === 0xFE && b[2] === 0 && b[3] === 0) {
+            return "utf-32le"
+          }
+          if (b[0] === 0 && b[1] === 0 && b[2] === 0xFE && b[3] === 0xFF) {
+            return "utf-32be"
+          }
+        }
+
+        if (b[0] !== 0 || b[1] > 0x10) invalidBE++
+        if (b[3] !== 0 || b[2] > 0x10) invalidLE++
+
+        if (b[0] === 0 && b[1] === 0 && (b[2] !== 0 || b[3] !== 0)) bmpCharsBE++
+        if ((b[0] !== 0 || b[1] !== 0) && b[2] === 0 && b[3] === 0) bmpCharsLE++
+
+        b.length = 0
+        charsProcessed++
+
+        if (charsProcessed >= 100) {
+          break outerLoop
+        }
+      }
+    }
+  }
+
+  // Make decisions.
+  if (bmpCharsBE - invalidBE > bmpCharsLE - invalidLE) return "utf-32be"
+  if (bmpCharsBE - invalidBE < bmpCharsLE - invalidLE) return "utf-32le"
+
+  // Couldn't decide (likely all zeros or not enough data).
+  return defaultEncoding || "utf-32le"
+}
diff --git a/backend/node_modules/raw-body/node_modules/iconv-lite/encodings/utf7.js b/backend/node_modules/raw-body/node_modules/iconv-lite/encodings/utf7.js
new file mode 100644
index 0000000..fe72a9d
--- /dev/null
+++ b/backend/node_modules/raw-body/node_modules/iconv-lite/encodings/utf7.js
@@ -0,0 +1,283 @@
+"use strict"
+var Buffer = require("safer-buffer").Buffer
+
+// UTF-7 codec, according to https://tools.ietf.org/html/rfc2152
+// See also below a UTF-7-IMAP codec, according to http://tools.ietf.org/html/rfc3501#section-5.1.3
+
+exports.utf7 = Utf7Codec
+exports.unicode11utf7 = "utf7" // Alias UNICODE-1-1-UTF-7
+function Utf7Codec (codecOptions, iconv) {
+  this.iconv = iconv
+};
+
+Utf7Codec.prototype.encoder = Utf7Encoder
+Utf7Codec.prototype.decoder = Utf7Decoder
+Utf7Codec.prototype.bomAware = true
+
+// -- Encoding
+
+// Why scape ()?./?
+// eslint-disable-next-line no-useless-escape
+var nonDirectChars = /[^A-Za-z0-9'\(\),-\.\/:\? \n\r\t]+/g
+
+function Utf7Encoder (options, codec) {
+  this.iconv = codec.iconv
+}
+
+Utf7Encoder.prototype.write = function (str) {
+  // Naive implementation.
+  // Non-direct chars are encoded as "+<base64>-"; single "+" char is encoded as "+-".
+  return Buffer.from(str.replace(nonDirectChars, function (chunk) {
+    return "+" + (chunk === "+"
+      ? ""
+      : this.iconv.encode(chunk, "utf16-be").toString("base64").replace(/=+$/, "")) +
+            "-"
+  }.bind(this)))
+}
+
+Utf7Encoder.prototype.end = function () {
+}
+
+// -- Decoding
+
+function Utf7Decoder (options, codec) {
+  this.iconv = codec.iconv
+  this.inBase64 = false
+  this.base64Accum = ""
+}
+
+// Why scape /?
+// eslint-disable-next-line no-useless-escape
+var base64Regex = /[A-Za-z0-9\/+]/
+var base64Chars = []
+for (var i = 0; i < 256; i++) { base64Chars[i] = base64Regex.test(String.fromCharCode(i)) }
+
+var plusChar = "+".charCodeAt(0)
+var minusChar = "-".charCodeAt(0)
+var andChar = "&".charCodeAt(0)
+
+Utf7Decoder.prototype.write = function (buf) {
+  var res = ""; var lastI = 0
+  var inBase64 = this.inBase64
+  var base64Accum = this.base64Accum
+
+  // The decoder is more involved as we must handle chunks in stream.
+
+  for (var i = 0; i < buf.length; i++) {
+    if (!inBase64) { // We're in direct mode.
+      // Write direct chars until '+'
+      if (buf[i] == plusChar) {
+        res += this.iconv.decode(buf.slice(lastI, i), "ascii") // Write direct chars.
+        lastI = i + 1
+        inBase64 = true
+      }
+    } else { // We decode base64.
+      if (!base64Chars[buf[i]]) { // Base64 ended.
+        if (i == lastI && buf[i] == minusChar) { // "+-" -> "+"
+          res += "+"
+        } else {
+          var b64str = base64Accum + this.iconv.decode(buf.slice(lastI, i), "ascii")
+          res += this.iconv.decode(Buffer.from(b64str, "base64"), "utf16-be")
+        }
+
+        if (buf[i] != minusChar) // Minus is absorbed after base64.
+        { i-- }
+
+        lastI = i + 1
+        inBase64 = false
+        base64Accum = ""
+      }
+    }
+  }
+
+  if (!inBase64) {
+    res += this.iconv.decode(buf.slice(lastI), "ascii") // Write direct chars.
+  } else {
+    var b64str = base64Accum + this.iconv.decode(buf.slice(lastI), "ascii")
+
+    var canBeDecoded = b64str.length - (b64str.length % 8) // Minimal chunk: 2 quads -> 2x3 bytes -> 3 chars.
+    base64Accum = b64str.slice(canBeDecoded) // The rest will be decoded in future.
+    b64str = b64str.slice(0, canBeDecoded)
+
+    res += this.iconv.decode(Buffer.from(b64str, "base64"), "utf16-be")
+  }
+
+  this.inBase64 = inBase64
+  this.base64Accum = base64Accum
+
+  return res
+}
+
+Utf7Decoder.prototype.end = function () {
+  var res = ""
+  if (this.inBase64 && this.base64Accum.length > 0) { res = this.iconv.decode(Buffer.from(this.base64Accum, "base64"), "utf16-be") }
+
+  this.inBase64 = false
+  this.base64Accum = ""
+  return res
+}
+
+// UTF-7-IMAP codec.
+// RFC3501 Sec. 5.1.3 Modified UTF-7 (http://tools.ietf.org/html/rfc3501#section-5.1.3)
+// Differences:
+//  * Base64 part is started by "&" instead of "+"
+//  * Direct characters are 0x20-0x7E, except "&" (0x26)
+//  * In Base64, "," is used instead of "/"
+//  * Base64 must not be used to represent direct characters.
+//  * No implicit shift back from Base64 (should always end with '-')
+//  * String must end in non-shifted position.
+//  * "-&" while in base64 is not allowed.
+
+exports.utf7imap = Utf7IMAPCodec
+function Utf7IMAPCodec (codecOptions, iconv) {
+  this.iconv = iconv
+};
+
+Utf7IMAPCodec.prototype.encoder = Utf7IMAPEncoder
+Utf7IMAPCodec.prototype.decoder = Utf7IMAPDecoder
+Utf7IMAPCodec.prototype.bomAware = true
+
+// -- Encoding
+
+function Utf7IMAPEncoder (options, codec) {
+  this.iconv = codec.iconv
+  this.inBase64 = false
+  this.base64Accum = Buffer.alloc(6)
+  this.base64AccumIdx = 0
+}
+
+Utf7IMAPEncoder.prototype.write = function (str) {
+  var inBase64 = this.inBase64
+  var base64Accum = this.base64Accum
+  var base64AccumIdx = this.base64AccumIdx
+  var buf = Buffer.alloc(str.length * 5 + 10); var bufIdx = 0
+
+  for (var i = 0; i < str.length; i++) {
+    var uChar = str.charCodeAt(i)
+    if (uChar >= 0x20 && uChar <= 0x7E) { // Direct character or '&'.
+      if (inBase64) {
+        if (base64AccumIdx > 0) {
+          bufIdx += buf.write(base64Accum.slice(0, base64AccumIdx).toString("base64").replace(/\//g, ",").replace(/=+$/, ""), bufIdx)
+          base64AccumIdx = 0
+        }
+
+        buf[bufIdx++] = minusChar // Write '-', then go to direct mode.
+        inBase64 = false
+      }
+
+      if (!inBase64) {
+        buf[bufIdx++] = uChar // Write direct character
+
+        if (uChar === andChar)  // Ampersand -> '&-'
+        { buf[bufIdx++] = minusChar }
+      }
+    } else { // Non-direct character
+      if (!inBase64) {
+        buf[bufIdx++] = andChar // Write '&', then go to base64 mode.
+        inBase64 = true
+      }
+      if (inBase64) {
+        base64Accum[base64AccumIdx++] = uChar >> 8
+        base64Accum[base64AccumIdx++] = uChar & 0xFF
+
+        if (base64AccumIdx == base64Accum.length) {
+          bufIdx += buf.write(base64Accum.toString("base64").replace(/\//g, ","), bufIdx)
+          base64AccumIdx = 0
+        }
+      }
+    }
+  }
+
+  this.inBase64 = inBase64
+  this.base64AccumIdx = base64AccumIdx
+
+  return buf.slice(0, bufIdx)
+}
+
+Utf7IMAPEncoder.prototype.end = function () {
+  var buf = Buffer.alloc(10); var bufIdx = 0
+  if (this.inBase64) {
+    if (this.base64AccumIdx > 0) {
+      bufIdx += buf.write(this.base64Accum.slice(0, this.base64AccumIdx).toString("base64").replace(/\//g, ",").replace(/=+$/, ""), bufIdx)
+      this.base64AccumIdx = 0
+    }
+
+    buf[bufIdx++] = minusChar // Write '-', then go to direct mode.
+    this.inBase64 = false
+  }
+
+  return buf.slice(0, bufIdx)
+}
+
+// -- Decoding
+
+function Utf7IMAPDecoder (options, codec) {
+  this.iconv = codec.iconv
+  this.inBase64 = false
+  this.base64Accum = ""
+}
+
+var base64IMAPChars = base64Chars.slice()
+base64IMAPChars[",".charCodeAt(0)] = true
+
+Utf7IMAPDecoder.prototype.write = function (buf) {
+  var res = ""; var lastI = 0
+  var inBase64 = this.inBase64
+  var base64Accum = this.base64Accum
+
+  // The decoder is more involved as we must handle chunks in stream.
+  // It is forgiving, closer to standard UTF-7 (for example, '-' is optional at the end).
+
+  for (var i = 0; i < buf.length; i++) {
+    if (!inBase64) { // We're in direct mode.
+      // Write direct chars until '&'
+      if (buf[i] == andChar) {
+        res += this.iconv.decode(buf.slice(lastI, i), "ascii") // Write direct chars.
+        lastI = i + 1
+        inBase64 = true
+      }
+    } else { // We decode base64.
+      if (!base64IMAPChars[buf[i]]) { // Base64 ended.
+        if (i == lastI && buf[i] == minusChar) { // "&-" -> "&"
+          res += "&"
+        } else {
+          var b64str = base64Accum + this.iconv.decode(buf.slice(lastI, i), "ascii").replace(/,/g, "/")
+          res += this.iconv.decode(Buffer.from(b64str, "base64"), "utf16-be")
+        }
+
+        if (buf[i] != minusChar) // Minus may be absorbed after base64.
+        { i-- }
+
+        lastI = i + 1
+        inBase64 = false
+        base64Accum = ""
+      }
+    }
+  }
+
+  if (!inBase64) {
+    res += this.iconv.decode(buf.slice(lastI), "ascii") // Write direct chars.
+  } else {
+    var b64str = base64Accum + this.iconv.decode(buf.slice(lastI), "ascii").replace(/,/g, "/")
+
+    var canBeDecoded = b64str.length - (b64str.length % 8) // Minimal chunk: 2 quads -> 2x3 bytes -> 3 chars.
+    base64Accum = b64str.slice(canBeDecoded) // The rest will be decoded in future.
+    b64str = b64str.slice(0, canBeDecoded)
+
+    res += this.iconv.decode(Buffer.from(b64str, "base64"), "utf16-be")
+  }
+
+  this.inBase64 = inBase64
+  this.base64Accum = base64Accum
+
+  return res
+}
+
+Utf7IMAPDecoder.prototype.end = function () {
+  var res = ""
+  if (this.inBase64 && this.base64Accum.length > 0) { res = this.iconv.decode(Buffer.from(this.base64Accum, "base64"), "utf16-be") }
+
+  this.inBase64 = false
+  this.base64Accum = ""
+  return res
+}
diff --git a/backend/node_modules/raw-body/node_modules/iconv-lite/lib/bom-handling.js b/backend/node_modules/raw-body/node_modules/iconv-lite/lib/bom-handling.js
new file mode 100644
index 0000000..a86a6b5
--- /dev/null
+++ b/backend/node_modules/raw-body/node_modules/iconv-lite/lib/bom-handling.js
@@ -0,0 +1,48 @@
+"use strict"
+
+var BOMChar = "\uFEFF"
+
+exports.PrependBOM = PrependBOMWrapper
+function PrependBOMWrapper (encoder, options) {
+  this.encoder = encoder
+  this.addBOM = true
+}
+
+PrependBOMWrapper.prototype.write = function (str) {
+  if (this.addBOM) {
+    str = BOMChar + str
+    this.addBOM = false
+  }
+
+  return this.encoder.write(str)
+}
+
+PrependBOMWrapper.prototype.end = function () {
+  return this.encoder.end()
+}
+
+// ------------------------------------------------------------------------------
+
+exports.StripBOM = StripBOMWrapper
+function StripBOMWrapper (decoder, options) {
+  this.decoder = decoder
+  this.pass = false
+  this.options = options || {}
+}
+
+StripBOMWrapper.prototype.write = function (buf) {
+  var res = this.decoder.write(buf)
+  if (this.pass || !res) { return res }
+
+  if (res[0] === BOMChar) {
+    res = res.slice(1)
+    if (typeof this.options.stripBOM === "function") { this.options.stripBOM() }
+  }
+
+  this.pass = true
+  return res
+}
+
+StripBOMWrapper.prototype.end = function () {
+  return this.decoder.end()
+}
diff --git a/backend/node_modules/raw-body/node_modules/iconv-lite/lib/helpers/merge-exports.js b/backend/node_modules/raw-body/node_modules/iconv-lite/lib/helpers/merge-exports.js
new file mode 100644
index 0000000..e79e041
--- /dev/null
+++ b/backend/node_modules/raw-body/node_modules/iconv-lite/lib/helpers/merge-exports.js
@@ -0,0 +1,13 @@
+"use strict"
+
+var hasOwn = typeof Object.hasOwn === "undefined" ? Function.call.bind(Object.prototype.hasOwnProperty) : Object.hasOwn
+
+function mergeModules (target, module) {
+  for (var key in module) {
+    if (hasOwn(module, key)) {
+      target[key] = module[key]
+    }
+  }
+}
+
+module.exports = mergeModules
diff --git a/backend/node_modules/raw-body/node_modules/iconv-lite/lib/index.d.ts b/backend/node_modules/raw-body/node_modules/iconv-lite/lib/index.d.ts
new file mode 100644
index 0000000..6cdada8
--- /dev/null
+++ b/backend/node_modules/raw-body/node_modules/iconv-lite/lib/index.d.ts
@@ -0,0 +1,41 @@
+/*---------------------------------------------------------------------------------------------
+ *  Copyright (c) Microsoft Corporation. All rights reserved.
+ *  Licensed under the MIT License.
+ *  REQUIREMENT: This definition is dependent on the @types/node definition.
+ *  Install with `npm install @types/node --save-dev`
+ *--------------------------------------------------------------------------------------------*/
+
+declare module 'iconv-lite' {
+	// Basic API
+	export function decode(buffer: Buffer | Uint8Array, encoding: string, options?: Options): string;
+
+	export function encode(content: string, encoding: string, options?: Options): Buffer;
+
+	export function encodingExists(encoding: string): boolean;
+
+	// Stream API
+	export function decodeStream(encoding: string, options?: Options): NodeJS.ReadWriteStream;
+
+	export function encodeStream(encoding: string, options?: Options): NodeJS.ReadWriteStream;
+
+	// Low-level stream APIs
+	export function getEncoder(encoding: string, options?: Options): EncoderStream;
+
+	export function getDecoder(encoding: string, options?: Options): DecoderStream;
+}
+
+export interface Options {
+    stripBOM?: boolean;
+    addBOM?: boolean;
+    defaultEncoding?: string;
+}
+
+export interface EncoderStream {
+	write(str: string): Buffer;
+	end(): Buffer | undefined;
+}
+
+export interface DecoderStream {
+	write(buf: Buffer): string;
+	end(): string | undefined;
+}
diff --git a/backend/node_modules/raw-body/node_modules/iconv-lite/lib/index.js b/backend/node_modules/raw-body/node_modules/iconv-lite/lib/index.js
new file mode 100644
index 0000000..be3e9f9
--- /dev/null
+++ b/backend/node_modules/raw-body/node_modules/iconv-lite/lib/index.js
@@ -0,0 +1,183 @@
+"use strict"
+
+var Buffer = require("safer-buffer").Buffer
+
+var bomHandling = require("./bom-handling")
+var mergeModules = require("./helpers/merge-exports")
+var iconv = module.exports
+
+// All codecs and aliases are kept here, keyed by encoding name/alias.
+// They are lazy loaded in `iconv.getCodec` from `encodings/index.js`.
+// Cannot initialize with { __proto__: null } because Boolean({ __proto__: null }) === true
+iconv.encodings = null
+
+// Characters emitted in case of error.
+iconv.defaultCharUnicode = "�"
+iconv.defaultCharSingleByte = "?"
+
+// Public API.
+iconv.encode = function encode (str, encoding, options) {
+  str = "" + (str || "") // Ensure string.
+
+  var encoder = iconv.getEncoder(encoding, options)
+
+  var res = encoder.write(str)
+  var trail = encoder.end()
+
+  return (trail && trail.length > 0) ? Buffer.concat([res, trail]) : res
+}
+
+iconv.decode = function decode (buf, encoding, options) {
+  if (typeof buf === "string") {
+    if (!iconv.skipDecodeWarning) {
+      console.error("Iconv-lite warning: decode()-ing strings is deprecated. Refer to https://github.com/ashtuchkin/iconv-lite/wiki/Use-Buffers-when-decoding")
+      iconv.skipDecodeWarning = true
+    }
+
+    buf = Buffer.from("" + (buf || ""), "binary") // Ensure buffer.
+  }
+
+  var decoder = iconv.getDecoder(encoding, options)
+
+  var res = decoder.write(buf)
+  var trail = decoder.end()
+
+  return trail ? (res + trail) : res
+}
+
+iconv.encodingExists = function encodingExists (enc) {
+  try {
+    iconv.getCodec(enc)
+    return true
+  } catch (e) {
+    return false
+  }
+}
+
+// Legacy aliases to convert functions
+iconv.toEncoding = iconv.encode
+iconv.fromEncoding = iconv.decode
+
+// Search for a codec in iconv.encodings. Cache codec data in iconv._codecDataCache.
+iconv._codecDataCache = { __proto__: null }
+
+iconv.getCodec = function getCodec (encoding) {
+  if (!iconv.encodings) {
+    var raw = require("../encodings")
+    // TODO: In future versions when old nodejs support is removed can use object.assign
+    iconv.encodings = { __proto__: null } // Initialize as empty object.
+    mergeModules(iconv.encodings, raw)
+  }
+
+  // Canonicalize encoding name: strip all non-alphanumeric chars and appended year.
+  var enc = iconv._canonicalizeEncoding(encoding)
+
+  // Traverse iconv.encodings to find actual codec.
+  var codecOptions = {}
+  while (true) {
+    var codec = iconv._codecDataCache[enc]
+
+    if (codec) { return codec }
+
+    var codecDef = iconv.encodings[enc]
+
+    switch (typeof codecDef) {
+      case "string": // Direct alias to other encoding.
+        enc = codecDef
+        break
+
+      case "object": // Alias with options. Can be layered.
+        for (var key in codecDef) { codecOptions[key] = codecDef[key] }
+
+        if (!codecOptions.encodingName) { codecOptions.encodingName = enc }
+
+        enc = codecDef.type
+        break
+
+      case "function": // Codec itself.
+        if (!codecOptions.encodingName) { codecOptions.encodingName = enc }
+
+        // The codec function must load all tables and return object with .encoder and .decoder methods.
+        // It'll be called only once (for each different options object).
+        //
+        codec = new codecDef(codecOptions, iconv)
+
+        iconv._codecDataCache[codecOptions.encodingName] = codec // Save it to be reused later.
+        return codec
+
+      default:
+        throw new Error("Encoding not recognized: '" + encoding + "' (searched as: '" + enc + "')")
+    }
+  }
+}
+
+iconv._canonicalizeEncoding = function (encoding) {
+  // Canonicalize encoding name: strip all non-alphanumeric chars and appended year.
+  return ("" + encoding).toLowerCase().replace(/:\d{4}$|[^0-9a-z]/g, "")
+}
+
+iconv.getEncoder = function getEncoder (encoding, options) {
+  var codec = iconv.getCodec(encoding)
+  var encoder = new codec.encoder(options, codec)
+
+  if (codec.bomAware && options && options.addBOM) { encoder = new bomHandling.PrependBOM(encoder, options) }
+
+  return encoder
+}
+
+iconv.getDecoder = function getDecoder (encoding, options) {
+  var codec = iconv.getCodec(encoding)
+  var decoder = new codec.decoder(options, codec)
+
+  if (codec.bomAware && !(options && options.stripBOM === false)) { decoder = new bomHandling.StripBOM(decoder, options) }
+
+  return decoder
+}
+
+// Streaming API
+// NOTE: Streaming API naturally depends on 'stream' module from Node.js. Unfortunately in browser environments this module can add
+// up to 100Kb to the output bundle. To avoid unnecessary code bloat, we don't enable Streaming API in browser by default.
+// If you would like to enable it explicitly, please add the following code to your app:
+// > iconv.enableStreamingAPI(require('stream'));
+iconv.enableStreamingAPI = function enableStreamingAPI (streamModule) {
+  if (iconv.supportsStreams) { return }
+
+  // Dependency-inject stream module to create IconvLite stream classes.
+  var streams = require("./streams")(streamModule)
+
+  // Not public API yet, but expose the stream classes.
+  iconv.IconvLiteEncoderStream = streams.IconvLiteEncoderStream
+  iconv.IconvLiteDecoderStream = streams.IconvLiteDecoderStream
+
+  // Streaming API.
+  iconv.encodeStream = function encodeStream (encoding, options) {
+    return new iconv.IconvLiteEncoderStream(iconv.getEncoder(encoding, options), options)
+  }
+
+  iconv.decodeStream = function decodeStream (encoding, options) {
+    return new iconv.IconvLiteDecoderStream(iconv.getDecoder(encoding, options), options)
+  }
+
+  iconv.supportsStreams = true
+}
+
+// Enable Streaming API automatically if 'stream' module is available and non-empty (the majority of environments).
+var streamModule
+try {
+  streamModule = require("stream")
+} catch (e) {}
+
+if (streamModule && streamModule.Transform) {
+  iconv.enableStreamingAPI(streamModule)
+} else {
+  // In rare cases where 'stream' module is not available by default, throw a helpful exception.
+  iconv.encodeStream = iconv.decodeStream = function () {
+    throw new Error("iconv-lite Streaming API is not enabled. Use iconv.enableStreamingAPI(require('stream')); to enable it.")
+  }
+}
+
+// Some environments, such as browsers, may not load JavaScript files as UTF-8
+// eslint-disable-next-line no-constant-condition
+if ("Ā" !== "\u0100") {
+  console.error("iconv-lite warning: js files use non-utf8 encoding. See https://github.com/ashtuchkin/iconv-lite/wiki/Javascript-source-file-encodings for more info.")
+}
diff --git a/backend/node_modules/raw-body/node_modules/iconv-lite/lib/streams.js b/backend/node_modules/raw-body/node_modules/iconv-lite/lib/streams.js
new file mode 100644
index 0000000..ebfed8e
--- /dev/null
+++ b/backend/node_modules/raw-body/node_modules/iconv-lite/lib/streams.js
@@ -0,0 +1,105 @@
+"use strict"
+
+var Buffer = require("safer-buffer").Buffer
+
+// NOTE: Due to 'stream' module being pretty large (~100Kb, significant in browser environments),
+// we opt to dependency-inject it instead of creating a hard dependency.
+module.exports = function (streamModule) {
+  var Transform = streamModule.Transform
+
+  // == Encoder stream =======================================================
+
+  function IconvLiteEncoderStream (conv, options) {
+    this.conv = conv
+    options = options || {}
+    options.decodeStrings = false // We accept only strings, so we don't need to decode them.
+    Transform.call(this, options)
+  }
+
+  IconvLiteEncoderStream.prototype = Object.create(Transform.prototype, {
+    constructor: { value: IconvLiteEncoderStream }
+  })
+
+  IconvLiteEncoderStream.prototype._transform = function (chunk, encoding, done) {
+    if (typeof chunk !== "string") {
+      return done(new Error("Iconv encoding stream needs strings as its input."))
+    }
+
+    try {
+      var res = this.conv.write(chunk)
+      if (res && res.length) this.push(res)
+      done()
+    } catch (e) {
+      done(e)
+    }
+  }
+
+  IconvLiteEncoderStream.prototype._flush = function (done) {
+    try {
+      var res = this.conv.end()
+      if (res && res.length) this.push(res)
+      done()
+    } catch (e) {
+      done(e)
+    }
+  }
+
+  IconvLiteEncoderStream.prototype.collect = function (cb) {
+    var chunks = []
+    this.on("error", cb)
+    this.on("data", function (chunk) { chunks.push(chunk) })
+    this.on("end", function () {
+      cb(null, Buffer.concat(chunks))
+    })
+    return this
+  }
+
+  // == Decoder stream =======================================================
+
+  function IconvLiteDecoderStream (conv, options) {
+    this.conv = conv
+    options = options || {}
+    options.encoding = this.encoding = "utf8" // We output strings.
+    Transform.call(this, options)
+  }
+
+  IconvLiteDecoderStream.prototype = Object.create(Transform.prototype, {
+    constructor: { value: IconvLiteDecoderStream }
+  })
+
+  IconvLiteDecoderStream.prototype._transform = function (chunk, encoding, done) {
+    if (!Buffer.isBuffer(chunk) && !(chunk instanceof Uint8Array)) { return done(new Error("Iconv decoding stream needs buffers as its input.")) }
+    try {
+      var res = this.conv.write(chunk)
+      if (res && res.length) this.push(res, this.encoding)
+      done()
+    } catch (e) {
+      done(e)
+    }
+  }
+
+  IconvLiteDecoderStream.prototype._flush = function (done) {
+    try {
+      var res = this.conv.end()
+      if (res && res.length) this.push(res, this.encoding)
+      done()
+    } catch (e) {
+      done(e)
+    }
+  }
+
+  IconvLiteDecoderStream.prototype.collect = function (cb) {
+    var res = ""
+    this.on("error", cb)
+    this.on("data", function (chunk) { res += chunk })
+    this.on("end", function () {
+      cb(null, res)
+    })
+    return this
+  }
+
+  return {
+    IconvLiteEncoderStream: IconvLiteEncoderStream,
+    IconvLiteDecoderStream: IconvLiteDecoderStream
+  }
+}
diff --git a/backend/node_modules/raw-body/node_modules/iconv-lite/package.json b/backend/node_modules/raw-body/node_modules/iconv-lite/package.json
new file mode 100644
index 0000000..038a6a5
--- /dev/null
+++ b/backend/node_modules/raw-body/node_modules/iconv-lite/package.json
@@ -0,0 +1,59 @@
+{
+    "name": "iconv-lite",
+    "description": "Convert character encodings in pure javascript.",
+    "version": "0.7.0",
+    "license": "MIT",
+    "keywords": [
+        "iconv",
+        "convert",
+        "charset",
+        "icu"
+    ],
+    "author": "Alexander Shtuchkin <ashtuchkin@gmail.com>",
+    "main": "./lib/index.js",
+    "typings": "./lib/index.d.ts",
+    "homepage": "https://github.com/pillarjs/iconv-lite",
+    "bugs": "https://github.com/pillarjs/iconv-lite/issues",
+    "funding": {
+      "type": "opencollective",
+      "url": "https://opencollective.com/express"
+    },
+    "repository": {
+        "type": "git",
+        "url": "https://github.com/pillarjs/iconv-lite.git"
+    },
+    "engines": {
+        "node": ">=0.10.0"
+    },
+    "scripts": {
+        "lint": "eslint",
+        "lint:fix": "eslint --fix",
+        "test": "mocha --reporter spec --check-leaks --grep .",
+        "test:ci": "nyc --exclude test --reporter=lcovonly --reporter=text npm test",
+        "test:cov": "nyc --exclude test --reporter=html --reporter=text npm test",
+        "test:performance": "node --allow-natives-syntax performance/index.js",
+        "test:tap": "mocha --reporter tap --check-leaks --grep .",
+        "test:webpack": "npm pack && mv iconv-lite-*.tgz test/webpack/iconv-lite.tgz && cd test/webpack && npm install && npm run test && rm iconv-lite.tgz"
+    },
+    "browser": {
+        "stream": false
+    },
+    "devDependencies": {
+        "@stylistic/eslint-plugin": "^5.1.0",
+        "@stylistic/eslint-plugin-js": "^4.1.0",
+        "async": "^3.2.0",
+        "bench-node": "^0.10.0",
+        "eslint": "^9.0.0",
+        "errto": "^0.2.1",
+        "iconv": "^2.3.5",
+        "mocha": "^6.2.2",
+        "neostandard": "^0.12.0",    
+        "nyc": "^14.1.1",
+        "request": "^2.88.2",
+        "semver": "^6.3.0",
+        "unorm": "^1.6.0"
+    },
+    "dependencies": {
+        "safer-buffer": ">= 2.1.2 < 3.0.0"
+    }
+}
diff --git a/backend/node_modules/raw-body/package.json b/backend/node_modules/raw-body/package.json
new file mode 100644
index 0000000..80b777b
--- /dev/null
+++ b/backend/node_modules/raw-body/package.json
@@ -0,0 +1,50 @@
+{
+  "name": "raw-body",
+  "description": "Get and validate the raw body of a readable stream.",
+  "version": "3.0.1",
+  "author": "Jonathan Ong <me@jongleberry.com> (http://jongleberry.com)",
+  "contributors": [
+    "Douglas Christopher Wilson <doug@somethingdoug.com>",
+    "Raynos <raynos2@gmail.com>"
+  ],
+  "license": "MIT",
+  "repository": "stream-utils/raw-body",
+  "dependencies": {
+    "bytes": "3.1.2",
+    "http-errors": "2.0.0",
+    "iconv-lite": "0.7.0",
+    "unpipe": "1.0.0"
+  },
+  "devDependencies": {
+    "bluebird": "3.7.2",
+    "eslint": "8.57.0",
+    "eslint-config-standard": "15.0.1",
+    "eslint-plugin-import": "2.29.1",
+    "eslint-plugin-markdown": "3.0.0",
+    "eslint-plugin-node": "11.1.0",
+    "eslint-plugin-promise": "6.6.0",
+    "eslint-plugin-standard": "4.1.0",
+    "mocha": "10.7.0",
+    "nyc": "17.0.0",
+    "readable-stream": "2.3.7",
+    "safe-buffer": "5.2.1"
+  },
+  "engines": {
+    "node": ">= 0.10"
+  },
+  "files": [
+    "HISTORY.md",
+    "LICENSE",
+    "README.md",
+    "SECURITY.md",
+    "index.d.ts",
+    "index.js"
+  ],
+  "scripts": {
+    "lint": "eslint .",
+    "test": "mocha --trace-deprecation --reporter spec --bail --check-leaks test/",
+    "test-ci": "nyc --reporter=lcovonly --reporter=text npm test",
+    "test-cov": "nyc --reporter=html --reporter=text npm test",
+    "version": "node scripts/version-history.js && git add HISTORY.md"
+  }
+}
diff --git a/backend/node_modules/router/HISTORY.md b/backend/node_modules/router/HISTORY.md
new file mode 100644
index 0000000..b292257
--- /dev/null
+++ b/backend/node_modules/router/HISTORY.md
@@ -0,0 +1,228 @@
+2.2.0 / 2025-03-26
+==================
+
+* Remove `setImmediate` support check
+* Restore `debug` dependency
+
+2.1.0 / 2025-02-10
+==================
+
+* Updated `engines` field to Node@18 or higher
+* Remove `Object.setPrototypeOf` polyfill
+* Use `Array.flat` instead of `array-flatten` package
+* Replace `methods` dependency with standard library
+* deps: parseurl@^1.3.3
+* deps: is-promise@^4.0.0
+* Replace `utils-merge` dependency with `Object.assign`
+* deps: Remove unused dep `after`
+
+2.0.0 / 2024-09-09
+==================
+
+* Drop support for node <18
+* deps: path-to-regexp@^8.0.0
+  - Drop support for partial capture group `router.route('/user(s?)/:user/:op')` but still have optional non-capture `/user{s}/:user/:op`
+  - `:name?` becomes `{:name}`
+  - `:name*` becomes `*name`.
+  - The splat change also changes splat from strings to an array of strings
+  - Optional splats become `{*name}`
+  - `:name+` becomes `*name` and thus equivalent to `*name` so I dropped those tests
+  - Strings as regular expressions are fully removed, need to be converted to native regular expressions
+
+2.0.0-beta.2 / 2024-03-20
+=========================
+
+This incorporates all changes after 1.3.5 up to 1.3.8.
+
+  * Add support for returned, rejected Promises to `router.param`
+
+2.0.0-beta.1 / 2020-03-29
+=========================
+
+This incorporates all changes after 1.3.3 up to 1.3.5.
+
+  * Internalize private `router.process_params` method
+  * Remove `debug` dependency
+  * deps: array-flatten@3.0.0
+  * deps: parseurl@~1.3.3
+  * deps: path-to-regexp@3.2.0
+    - Add new `?`, `*`, and `+` parameter modifiers.
+    - Matching group expressions are only RegExp syntax.
+      `(*)` is no longer valid and must be written as `(.*)`, for example.
+    - Named matching groups no longer available by position in `req.params`.
+      `/:foo(.*)` only captures as `req.params.foo` and not available as
+      `req.params[0]`.
+    - Regular expressions can only be used in a matching group.
+      `/\\d+` is no longer valid and must be written as `/(\\d+)`.
+    - Matching groups are now literal regular expressions.
+      `:foo` named captures can no longer be included inside a capture group.
+    - Special `*` path segment behavior removed.
+      `/foo/*/bar` will match a literal `*` as the middle segment.
+  * deps: setprototypeof@1.2.0
+
+2.0.0-alpha.1 / 2018-07-27
+==========================
+
+  * Add basic support for returned, rejected Promises
+    - Rejected Promises from middleware functions `next(error)`
+  * Drop support for Node.js below 0.10
+  * deps: debug@3.1.0
+    - Add `DEBUG_HIDE_DATE` environment variable
+    - Change timer to per-namespace instead of global
+    - Change non-TTY date format
+    - Remove `DEBUG_FD` environment variable support
+    - Support 256 namespace colors
+
+1.3.8 / 2023-02-24
+==================
+
+  * Fix routing requests without method
+
+1.3.7 / 2022-04-28
+==================
+
+  * Fix hanging on large stack of sync routes
+
+1.3.6 / 2021-11-15
+==================
+
+  * Fix handling very large stacks of sync middleware
+  * deps: safe-buffer@5.2.1
+
+1.3.5 / 2020-03-24
+==================
+
+  * Fix incorrect middleware execution with unanchored `RegExp`s
+  * perf: use plain object for internal method map
+
+1.3.4 / 2020-01-24
+==================
+
+  * deps: array-flatten@3.0.0
+  * deps: parseurl@~1.3.3
+  * deps: setprototypeof@1.2.0
+
+1.3.3 / 2018-07-06
+==================
+
+  * Fix JSDoc for `Router` constructor
+
+1.3.2 / 2017-09-24
+==================
+
+  * deps: debug@2.6.9
+  * deps: parseurl@~1.3.2
+    - perf: reduce overhead for full URLs
+    - perf: unroll the "fast-path" `RegExp`
+  * deps: setprototypeof@1.1.0
+  * deps: utils-merge@1.0.1
+
+1.3.1 / 2017-05-19
+==================
+
+  * deps: debug@2.6.8
+    - Fix `DEBUG_MAX_ARRAY_LENGTH`
+    - deps: ms@2.0.0
+
+1.3.0 / 2017-02-25
+==================
+
+  * Add `next("router")` to exit from router
+  * Fix case where `router.use` skipped requests routes did not
+  * Use `%o` in path debug to tell types apart
+  * deps: setprototypeof@1.0.3
+  * perf: add fast match path for `*` route
+
+1.2.0 / 2017-02-17
+==================
+
+  * Skip routing when `req.url` is not set
+  * deps: debug@2.6.1
+    - Allow colors in workers
+    - Deprecated `DEBUG_FD` environment variable set to `3` or higher
+    - Fix error when running under React Native
+    - Use same color for same namespace
+    - deps: ms@0.7.2
+
+1.1.5 / 2017-01-28
+==================
+
+  * deps: array-flatten@2.1.1
+  * deps: setprototypeof@1.0.2
+    - Fix using fallback even when native method exists
+
+1.1.4 / 2016-01-21
+==================
+
+  * deps: array-flatten@2.0.0
+  * deps: methods@~1.1.2
+    - perf: enable strict mode
+  * deps: parseurl@~1.3.1
+    - perf: enable strict mode
+
+1.1.3 / 2015-08-02
+==================
+
+  * Fix infinite loop condition using `mergeParams: true`
+  * Fix inner numeric indices incorrectly altering parent `req.params`
+  * deps: array-flatten@1.1.1
+    - perf: enable strict mode
+  * deps: path-to-regexp@0.1.7
+    - Fix regression with escaped round brackets and matching groups
+
+1.1.2 / 2015-07-06
+==================
+
+  * Fix hiding platform issues with `decodeURIComponent`
+    - Only `URIError`s are a 400
+  * Fix using `*` before params in routes
+  * Fix using capture groups before params in routes
+  * deps: path-to-regexp@0.1.6
+  * perf: enable strict mode
+  * perf: remove argument reassignments in routing
+  * perf: skip attempting to decode zero length string
+  * perf: use plain for loops
+
+1.1.1 / 2015-05-25
+==================
+
+  * Fix issue where `next('route')` in `router.param` would incorrectly skip values
+  * deps: array-flatten@1.1.0
+  * deps: debug@~2.2.0
+    - deps: ms@0.7.1
+
+1.1.0 / 2015-04-22
+==================
+
+  * Use `setprototypeof` instead of `__proto__`
+  * deps: debug@~2.1.3
+    - Fix high intensity foreground color for bold
+    - deps: ms@0.7.0
+
+1.0.0 / 2015-01-13
+==================
+
+  * Fix crash from error within `OPTIONS` response handler
+  * deps: array-flatten@1.0.2
+    - Remove redundant code path
+
+1.0.0-beta.3 / 2015-01-11
+=========================
+
+  * Fix duplicate methods appearing in OPTIONS responses
+  * Fix OPTIONS responses to include the HEAD method properly
+  * Remove support for leading colon in `router.param(name, fn)`
+  * Use `array-flatten` for flattening arrays
+  * deps: debug@~2.1.1
+  * deps: methods@~1.1.1
+
+1.0.0-beta.2 / 2014-11-19
+=========================
+
+  * Match routes iteratively to prevent stack overflows
+
+1.0.0-beta.1 / 2014-11-16
+=========================
+
+  * Initial release ported from Express 4.x
+    - Altered to work without Express
diff --git a/backend/node_modules/router/LICENSE b/backend/node_modules/router/LICENSE
new file mode 100644
index 0000000..237e1b6
--- /dev/null
+++ b/backend/node_modules/router/LICENSE
@@ -0,0 +1,23 @@
+(The MIT License)
+
+Copyright (c) 2013 Roman Shtylman
+Copyright (c) 2014-2022 Douglas Christopher Wilson
+
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of this software and associated documentation files (the
+'Software'), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sublicense, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to
+the following conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
diff --git a/backend/node_modules/router/README.md b/backend/node_modules/router/README.md
new file mode 100644
index 0000000..218fd57
--- /dev/null
+++ b/backend/node_modules/router/README.md
@@ -0,0 +1,416 @@
+# router
+
+[![NPM Version][npm-image]][npm-url]
+[![NPM Downloads][downloads-image]][downloads-url]
+[![Node.js Version][node-version-image]][node-version-url]
+[![Build Status][ci-image]][ci-url]
+[![Test Coverage][coveralls-image]][coveralls-url]
+
+Simple middleware-style router
+
+## Installation
+
+This is a [Node.js](https://nodejs.org/en/) module available through the
+[npm registry](https://www.npmjs.com/). Installation is done using the
+[`npm install` command](https://docs.npmjs.com/getting-started/installing-npm-packages-locally):
+
+```bash
+$ npm install router
+```
+
+## API
+
+```js
+var finalhandler = require('finalhandler')
+var http = require('http')
+var Router = require('router')
+
+var router = Router()
+router.get('/', function (req, res) {
+  res.setHeader('Content-Type', 'text/plain; charset=utf-8')
+  res.end('Hello World!')
+})
+
+var server = http.createServer(function (req, res) {
+  router(req, res, finalhandler(req, res))
+})
+
+server.listen(3000)
+```
+
+This module is currently an extracted version from the Express project,
+but with the main change being it can be used with a plain `http.createServer`
+object or other web frameworks by removing Express-specific API calls.
+
+## Router(options)
+
+Options
+
+- `strict`        - When `false` trailing slashes are optional (default: `false`)
+- `caseSensitive` - When `true` the routing will be case sensitive. (default: `false`)
+- `mergeParams`   - When `true` any `req.params` passed to the router will be
+  merged into the router's `req.params`. (default: `false`) ([example](#example-using-mergeparams))
+
+Returns a function with the signature `router(req, res, callback)` where
+`callback([err])` must be provided to handle errors and fall-through from
+not handling requests.
+
+### router.use([path], ...middleware)
+
+Use the given [middleware function](#middleware) for all http methods on the
+given `path`, defaulting to the root path.
+
+`router` does not automatically see `use` as a handler. As such, it will not
+consider it one for handling `OPTIONS` requests.
+
+* Note: If a `path` is specified, that `path` is stripped from the start of
+  `req.url`.
+
+<!-- eslint-disable no-undef -->
+
+```js
+router.use(function (req, res, next) {
+  // do your things
+
+  // continue to the next middleware
+  // the request will stall if this is not called
+  next()
+
+  // note: you should NOT call `next` if you have begun writing to the response
+})
+```
+
+[Middleware](#middleware) can themselves use `next('router')` at any time to
+exit the current router instance completely, invoking the top-level callback.
+
+### router\[method](path, ...[middleware], handler)
+
+The [http methods](https://github.com/jshttp/methods/blob/master/index.js) provide
+the routing functionality in `router`.
+
+Method middleware and handlers follow usual [middleware](#middleware) behavior,
+except they will only be called when the method and path match the request.
+
+<!-- eslint-disable no-undef -->
+
+```js
+// handle a `GET` request
+router.get('/', function (req, res) {
+  res.setHeader('Content-Type', 'text/plain; charset=utf-8')
+  res.end('Hello World!')
+})
+```
+
+[Middleware](#middleware) given before the handler have one additional trick,
+they may invoke `next('route')`. Calling `next('route')` bypasses the remaining
+middleware and the handler mounted for this route, passing the request to the
+next route suitable for handling this request.
+
+Route handlers and middleware can themselves use `next('router')` at any time
+to exit the current router instance completely, invoking the top-level callback.
+
+### router.param(name, param_middleware)
+
+Maps the specified path parameter `name` to a specialized param-capturing middleware.
+
+This function positions the middleware in the same stack as `.use`.
+
+The function can optionally return a `Promise` object. If a `Promise` object
+is returned from the function, the router will attach an `onRejected` callback
+using `.then`. If the promise is rejected, `next` will be called with the
+rejected value, or an error if the value is falsy.
+
+Parameter mapping is used to provide pre-conditions to routes
+which use normalized placeholders. For example a _:user_id_ parameter
+could automatically load a user's information from the database without
+any additional code:
+
+<!-- eslint-disable no-undef -->
+
+```js
+router.param('user_id', function (req, res, next, id) {
+  User.find(id, function (err, user) {
+    if (err) {
+      return next(err)
+    } else if (!user) {
+      return next(new Error('failed to load user'))
+    }
+    req.user = user
+
+    // continue processing the request
+    next()
+  })
+})
+```
+
+### router.route(path)
+
+Creates an instance of a single `Route` for the given `path`.
+(See `Router.Route` below)
+
+Routes can be used to handle http `methods` with their own, optional middleware.
+
+Using `router.route(path)` is a recommended approach to avoiding duplicate
+route naming and thus typo errors.
+
+<!-- eslint-disable no-undef, no-unused-vars -->
+
+```js
+var api = router.route('/api/')
+```
+
+## Router.Route(path)
+
+Represents a single route as an instance that can be used to handle http
+`methods` with it's own, optional middleware.
+
+### route\[method](handler)
+
+These are functions which you can directly call on a route to register a new
+`handler` for the `method` on the route.
+
+<!-- eslint-disable no-undef -->
+
+```js
+// handle a `GET` request
+var status = router.route('/status')
+
+status.get(function (req, res) {
+  res.setHeader('Content-Type', 'text/plain; charset=utf-8')
+  res.end('All Systems Green!')
+})
+```
+
+### route.all(handler)
+
+Adds a handler for all HTTP methods to this route.
+
+The handler can behave like middleware and call `next` to continue processing
+rather than responding.
+
+<!-- eslint-disable no-undef -->
+
+```js
+router.route('/')
+  .all(function (req, res, next) {
+    next()
+  })
+  .all(checkSomething)
+  .get(function (req, res) {
+    res.setHeader('Content-Type', 'text/plain; charset=utf-8')
+    res.end('Hello World!')
+  })
+```
+
+## Middleware
+
+Middleware (and method handlers) are functions that follow specific function
+parameters and have defined behavior when used with `router`. The most common
+format is with three parameters - "req", "res" and "next".
+
+- `req`  - This is a [HTTP incoming message](https://nodejs.org/api/http.html#http_http_incomingmessage) instance.
+- `res`  - This is a [HTTP server response](https://nodejs.org/api/http.html#http_class_http_serverresponse) instance.
+- `next` - Calling this function that tells `router` to proceed to the next matching middleware or method handler. It accepts an error as the first argument.
+
+The function can optionally return a `Promise` object. If a `Promise` object
+is returned from the function, the router will attach an `onRejected` callback
+using `.then`. If the promise is rejected, `next` will be called with the
+rejected value, or an error if the value is falsy.
+
+Middleware and method handlers can also be defined with four arguments. When
+the function has four parameters defined, the first argument is an error and
+subsequent arguments remain, becoming - "err", "req", "res", "next". These
+functions are "error handling middleware", and can be used for handling
+errors that occurred in previous handlers (E.g. from calling `next(err)`).
+This is most used when you want to define arbitrary rendering of errors.
+
+<!-- eslint-disable no-undef -->
+
+```js
+router.get('/error_route', function (req, res, next) {
+  return next(new Error('Bad Request'))
+})
+
+router.use(function (err, req, res, next) {
+  res.end(err.message) //= > "Bad Request"
+})
+```
+
+Error handling middleware will **only** be invoked when an error was given. As
+long as the error is in the pipeline, normal middleware and handlers will be
+bypassed - only error handling middleware will be invoked with an error.
+
+## Examples
+
+```js
+// import our modules
+var http = require('http')
+var Router = require('router')
+var finalhandler = require('finalhandler')
+var compression = require('compression')
+var bodyParser = require('body-parser')
+
+// store our message to display
+var message = 'Hello World!'
+
+// initialize the router & server and add a final callback.
+var router = Router()
+var server = http.createServer(function onRequest (req, res) {
+  router(req, res, finalhandler(req, res))
+})
+
+// use some middleware and compress all outgoing responses
+router.use(compression())
+
+// handle `GET` requests to `/message`
+router.get('/message', function (req, res) {
+  res.statusCode = 200
+  res.setHeader('Content-Type', 'text/plain; charset=utf-8')
+  res.end(message + '\n')
+})
+
+// create and mount a new router for our API
+var api = Router()
+router.use('/api/', api)
+
+// add a body parsing middleware to our API
+api.use(bodyParser.json())
+
+// handle `PATCH` requests to `/api/set-message`
+api.patch('/set-message', function (req, res) {
+  if (req.body.value) {
+    message = req.body.value
+
+    res.statusCode = 200
+    res.setHeader('Content-Type', 'text/plain; charset=utf-8')
+    res.end(message + '\n')
+  } else {
+    res.statusCode = 400
+    res.setHeader('Content-Type', 'text/plain; charset=utf-8')
+    res.end('Invalid API Syntax\n')
+  }
+})
+
+// make our http server listen to connections
+server.listen(8080)
+```
+
+You can get the message by running this command in your terminal,
+ or navigating to `127.0.0.1:8080` in a web browser.
+```bash
+curl http://127.0.0.1:8080
+```
+
+You can set the message by sending it a `PATCH` request via this command:
+```bash
+curl http://127.0.0.1:8080/api/set-message -X PATCH -H "Content-Type: application/json" -d '{"value":"Cats!"}'
+```
+
+### Example using mergeParams
+
+```js
+var http = require('http')
+var Router = require('router')
+var finalhandler = require('finalhandler')
+
+// this example is about the mergeParams option
+var opts = { mergeParams: true }
+
+// make a router with out special options
+var router = Router(opts)
+var server = http.createServer(function onRequest (req, res) {
+  // set something to be passed into the router
+  req.params = { type: 'kitten' }
+
+  router(req, res, finalhandler(req, res))
+})
+
+router.get('/', function (req, res) {
+  res.statusCode = 200
+  res.setHeader('Content-Type', 'text/plain; charset=utf-8')
+
+  // with respond with the the params that were passed in
+  res.end(req.params.type + '\n')
+})
+
+// make another router with our options
+var handler = Router(opts)
+
+// mount our new router to a route that accepts a param
+router.use('/:path', handler)
+
+handler.get('/', function (req, res) {
+  res.statusCode = 200
+  res.setHeader('Content-Type', 'text/plain; charset=utf-8')
+
+  // will respond with the param of the router's parent route
+  res.end(req.params.path + '\n')
+})
+
+// make our http server listen to connections
+server.listen(8080)
+```
+
+Now you can get the type, or what path you are requesting:
+```bash
+curl http://127.0.0.1:8080
+> kitten
+curl http://127.0.0.1:8080/such_path
+> such_path
+```
+
+### Example of advanced `.route()` usage
+
+This example shows how to implement routes where there is a custom
+handler to execute when the path matched, but no methods matched.
+Without any special handling, this would be treated as just a
+generic non-match by `router` (which typically results in a 404),
+but with a custom handler, a `405 Method Not Allowed` can be sent.
+
+```js
+var http = require('http')
+var finalhandler = require('finalhandler')
+var Router = require('router')
+
+// create the router and server
+var router = new Router()
+var server = http.createServer(function onRequest (req, res) {
+  router(req, res, finalhandler(req, res))
+})
+
+// register a route and add all methods
+router.route('/pet/:id')
+  .get(function (req, res) {
+    // this is GET /pet/:id
+    res.setHeader('Content-Type', 'application/json')
+    res.end(JSON.stringify({ name: 'tobi' }))
+  })
+  .delete(function (req, res) {
+    // this is DELETE /pet/:id
+    res.end()
+  })
+  .all(function (req, res) {
+    // this is called for all other methods not
+    // defined above for /pet/:id
+    res.statusCode = 405
+    res.end()
+  })
+
+// make our http server listen to connections
+server.listen(8080)
+```
+
+## License
+
+[MIT](LICENSE)
+
+[ci-image]: https://badgen.net/github/checks/pillarjs/router/master?label=ci
+[ci-url]: https://github.com/pillarjs/router/actions/workflows/ci.yml
+[npm-image]: https://img.shields.io/npm/v/router.svg
+[npm-url]: https://npmjs.org/package/router
+[node-version-image]: https://img.shields.io/node/v/router.svg
+[node-version-url]: http://nodejs.org/download/
+[coveralls-image]: https://img.shields.io/coveralls/pillarjs/router/master.svg
+[coveralls-url]: https://coveralls.io/r/pillarjs/router?branch=master
+[downloads-image]: https://img.shields.io/npm/dm/router.svg
+[downloads-url]: https://npmjs.org/package/router
diff --git a/backend/node_modules/router/index.js b/backend/node_modules/router/index.js
new file mode 100644
index 0000000..4358aeb
--- /dev/null
+++ b/backend/node_modules/router/index.js
@@ -0,0 +1,748 @@
+/*!
+ * router
+ * Copyright(c) 2013 Roman Shtylman
+ * Copyright(c) 2014-2022 Douglas Christopher Wilson
+ * MIT Licensed
+ */
+
+'use strict'
+
+/**
+ * Module dependencies.
+ * @private
+ */
+
+const isPromise = require('is-promise')
+const Layer = require('./lib/layer')
+const { METHODS } = require('node:http')
+const parseUrl = require('parseurl')
+const Route = require('./lib/route')
+const debug = require('debug')('router')
+const deprecate = require('depd')('router')
+
+/**
+ * Module variables.
+ * @private
+ */
+
+const slice = Array.prototype.slice
+const flatten = Array.prototype.flat
+const methods = METHODS.map((method) => method.toLowerCase())
+
+/**
+ * Expose `Router`.
+ */
+
+module.exports = Router
+
+/**
+ * Expose `Route`.
+ */
+
+module.exports.Route = Route
+
+/**
+ * Initialize a new `Router` with the given `options`.
+ *
+ * @param {object} [options]
+ * @return {Router} which is a callable function
+ * @public
+ */
+
+function Router (options) {
+  if (!(this instanceof Router)) {
+    return new Router(options)
+  }
+
+  const opts = options || {}
+
+  function router (req, res, next) {
+    router.handle(req, res, next)
+  }
+
+  // inherit from the correct prototype
+  Object.setPrototypeOf(router, this)
+
+  router.caseSensitive = opts.caseSensitive
+  router.mergeParams = opts.mergeParams
+  router.params = {}
+  router.strict = opts.strict
+  router.stack = []
+
+  return router
+}
+
+/**
+ * Router prototype inherits from a Function.
+ */
+
+/* istanbul ignore next */
+Router.prototype = function () {}
+
+/**
+ * Map the given param placeholder `name`(s) to the given callback.
+ *
+ * Parameter mapping is used to provide pre-conditions to routes
+ * which use normalized placeholders. For example a _:user_id_ parameter
+ * could automatically load a user's information from the database without
+ * any additional code.
+ *
+ * The callback uses the same signature as middleware, the only difference
+ * being that the value of the placeholder is passed, in this case the _id_
+ * of the user. Once the `next()` function is invoked, just like middleware
+ * it will continue on to execute the route, or subsequent parameter functions.
+ *
+ * Just like in middleware, you must either respond to the request or call next
+ * to avoid stalling the request.
+ *
+ *  router.param('user_id', function(req, res, next, id){
+ *    User.find(id, function(err, user){
+ *      if (err) {
+ *        return next(err)
+ *      } else if (!user) {
+ *        return next(new Error('failed to load user'))
+ *      }
+ *      req.user = user
+ *      next()
+ *    })
+ *  })
+ *
+ * @param {string} name
+ * @param {function} fn
+ * @public
+ */
+
+Router.prototype.param = function param (name, fn) {
+  if (!name) {
+    throw new TypeError('argument name is required')
+  }
+
+  if (typeof name !== 'string') {
+    throw new TypeError('argument name must be a string')
+  }
+
+  if (!fn) {
+    throw new TypeError('argument fn is required')
+  }
+
+  if (typeof fn !== 'function') {
+    throw new TypeError('argument fn must be a function')
+  }
+
+  let params = this.params[name]
+
+  if (!params) {
+    params = this.params[name] = []
+  }
+
+  params.push(fn)
+
+  return this
+}
+
+/**
+ * Dispatch a req, res into the router.
+ *
+ * @private
+ */
+
+Router.prototype.handle = function handle (req, res, callback) {
+  if (!callback) {
+    throw new TypeError('argument callback is required')
+  }
+
+  debug('dispatching %s %s', req.method, req.url)
+
+  let idx = 0
+  let methods
+  const protohost = getProtohost(req.url) || ''
+  let removed = ''
+  const self = this
+  let slashAdded = false
+  let sync = 0
+  const paramcalled = {}
+
+  // middleware and routes
+  const stack = this.stack
+
+  // manage inter-router variables
+  const parentParams = req.params
+  const parentUrl = req.baseUrl || ''
+  let done = restore(callback, req, 'baseUrl', 'next', 'params')
+
+  // setup next layer
+  req.next = next
+
+  // for options requests, respond with a default if nothing else responds
+  if (req.method === 'OPTIONS') {
+    methods = []
+    done = wrap(done, generateOptionsResponder(res, methods))
+  }
+
+  // setup basic req values
+  req.baseUrl = parentUrl
+  req.originalUrl = req.originalUrl || req.url
+
+  next()
+
+  function next (err) {
+    let layerError = err === 'route'
+      ? null
+      : err
+
+    // remove added slash
+    if (slashAdded) {
+      req.url = req.url.slice(1)
+      slashAdded = false
+    }
+
+    // restore altered req.url
+    if (removed.length !== 0) {
+      req.baseUrl = parentUrl
+      req.url = protohost + removed + req.url.slice(protohost.length)
+      removed = ''
+    }
+
+    // signal to exit router
+    if (layerError === 'router') {
+      setImmediate(done, null)
+      return
+    }
+
+    // no more matching layers
+    if (idx >= stack.length) {
+      setImmediate(done, layerError)
+      return
+    }
+
+    // max sync stack
+    if (++sync > 100) {
+      return setImmediate(next, err)
+    }
+
+    // get pathname of request
+    const path = getPathname(req)
+
+    if (path == null) {
+      return done(layerError)
+    }
+
+    // find next matching layer
+    let layer
+    let match
+    let route
+
+    while (match !== true && idx < stack.length) {
+      layer = stack[idx++]
+      match = matchLayer(layer, path)
+      route = layer.route
+
+      if (typeof match !== 'boolean') {
+        // hold on to layerError
+        layerError = layerError || match
+      }
+
+      if (match !== true) {
+        continue
+      }
+
+      if (!route) {
+        // process non-route handlers normally
+        continue
+      }
+
+      if (layerError) {
+        // routes do not match with a pending error
+        match = false
+        continue
+      }
+
+      const method = req.method
+      const hasMethod = route._handlesMethod(method)
+
+      // build up automatic options response
+      if (!hasMethod && method === 'OPTIONS' && methods) {
+        methods.push.apply(methods, route._methods())
+      }
+
+      // don't even bother matching route
+      if (!hasMethod && method !== 'HEAD') {
+        match = false
+      }
+    }
+
+    // no match
+    if (match !== true) {
+      return done(layerError)
+    }
+
+    // store route for dispatch on change
+    if (route) {
+      req.route = route
+    }
+
+    // Capture one-time layer values
+    req.params = self.mergeParams
+      ? mergeParams(layer.params, parentParams)
+      : layer.params
+    const layerPath = layer.path
+
+    // this should be done for the layer
+    processParams(self.params, layer, paramcalled, req, res, function (err) {
+      if (err) {
+        next(layerError || err)
+      } else if (route) {
+        layer.handleRequest(req, res, next)
+      } else {
+        trimPrefix(layer, layerError, layerPath, path)
+      }
+
+      sync = 0
+    })
+  }
+
+  function trimPrefix (layer, layerError, layerPath, path) {
+    if (layerPath.length !== 0) {
+      // Validate path is a prefix match
+      if (layerPath !== path.substring(0, layerPath.length)) {
+        next(layerError)
+        return
+      }
+
+      // Validate path breaks on a path separator
+      const c = path[layerPath.length]
+      if (c && c !== '/') {
+        next(layerError)
+        return
+      }
+
+      // Trim off the part of the url that matches the route
+      // middleware (.use stuff) needs to have the path stripped
+      debug('trim prefix (%s) from url %s', layerPath, req.url)
+      removed = layerPath
+      req.url = protohost + req.url.slice(protohost.length + removed.length)
+
+      // Ensure leading slash
+      if (!protohost && req.url[0] !== '/') {
+        req.url = '/' + req.url
+        slashAdded = true
+      }
+
+      // Setup base URL (no trailing slash)
+      req.baseUrl = parentUrl + (removed[removed.length - 1] === '/'
+        ? removed.substring(0, removed.length - 1)
+        : removed)
+    }
+
+    debug('%s %s : %s', layer.name, layerPath, req.originalUrl)
+
+    if (layerError) {
+      layer.handleError(layerError, req, res, next)
+    } else {
+      layer.handleRequest(req, res, next)
+    }
+  }
+}
+
+/**
+ * Use the given middleware function, with optional path, defaulting to "/".
+ *
+ * Use (like `.all`) will run for any http METHOD, but it will not add
+ * handlers for those methods so OPTIONS requests will not consider `.use`
+ * functions even if they could respond.
+ *
+ * The other difference is that _route_ path is stripped and not visible
+ * to the handler function. The main effect of this feature is that mounted
+ * handlers can operate without any code changes regardless of the "prefix"
+ * pathname.
+ *
+ * @public
+ */
+
+Router.prototype.use = function use (handler) {
+  let offset = 0
+  let path = '/'
+
+  // default path to '/'
+  // disambiguate router.use([handler])
+  if (typeof handler !== 'function') {
+    let arg = handler
+
+    while (Array.isArray(arg) && arg.length !== 0) {
+      arg = arg[0]
+    }
+
+    // first arg is the path
+    if (typeof arg !== 'function') {
+      offset = 1
+      path = handler
+    }
+  }
+
+  const callbacks = flatten.call(slice.call(arguments, offset), Infinity)
+
+  if (callbacks.length === 0) {
+    throw new TypeError('argument handler is required')
+  }
+
+  for (let i = 0; i < callbacks.length; i++) {
+    const fn = callbacks[i]
+
+    if (typeof fn !== 'function') {
+      throw new TypeError('argument handler must be a function')
+    }
+
+    // add the middleware
+    debug('use %o %s', path, fn.name || '<anonymous>')
+
+    const layer = new Layer(path, {
+      sensitive: this.caseSensitive,
+      strict: false,
+      end: false
+    }, fn)
+
+    layer.route = undefined
+
+    this.stack.push(layer)
+  }
+
+  return this
+}
+
+/**
+ * Create a new Route for the given path.
+ *
+ * Each route contains a separate middleware stack and VERB handlers.
+ *
+ * See the Route api documentation for details on adding handlers
+ * and middleware to routes.
+ *
+ * @param {string} path
+ * @return {Route}
+ * @public
+ */
+
+Router.prototype.route = function route (path) {
+  const route = new Route(path)
+
+  const layer = new Layer(path, {
+    sensitive: this.caseSensitive,
+    strict: this.strict,
+    end: true
+  }, handle)
+
+  function handle (req, res, next) {
+    route.dispatch(req, res, next)
+  }
+
+  layer.route = route
+
+  this.stack.push(layer)
+  return route
+}
+
+// create Router#VERB functions
+methods.concat('all').forEach(function (method) {
+  Router.prototype[method] = function (path) {
+    const route = this.route(path)
+    route[method].apply(route, slice.call(arguments, 1))
+    return this
+  }
+})
+
+/**
+ * Generate a callback that will make an OPTIONS response.
+ *
+ * @param {OutgoingMessage} res
+ * @param {array} methods
+ * @private
+ */
+
+function generateOptionsResponder (res, methods) {
+  return function onDone (fn, err) {
+    if (err || methods.length === 0) {
+      return fn(err)
+    }
+
+    trySendOptionsResponse(res, methods, fn)
+  }
+}
+
+/**
+ * Get pathname of request.
+ *
+ * @param {IncomingMessage} req
+ * @private
+ */
+
+function getPathname (req) {
+  try {
+    return parseUrl(req).pathname
+  } catch (err) {
+    return undefined
+  }
+}
+
+/**
+ * Get get protocol + host for a URL.
+ *
+ * @param {string} url
+ * @private
+ */
+
+function getProtohost (url) {
+  if (typeof url !== 'string' || url.length === 0 || url[0] === '/') {
+    return undefined
+  }
+
+  const searchIndex = url.indexOf('?')
+  const pathLength = searchIndex !== -1
+    ? searchIndex
+    : url.length
+  const fqdnIndex = url.substring(0, pathLength).indexOf('://')
+
+  return fqdnIndex !== -1
+    ? url.substring(0, url.indexOf('/', 3 + fqdnIndex))
+    : undefined
+}
+
+/**
+ * Match path to a layer.
+ *
+ * @param {Layer} layer
+ * @param {string} path
+ * @private
+ */
+
+function matchLayer (layer, path) {
+  try {
+    return layer.match(path)
+  } catch (err) {
+    return err
+  }
+}
+
+/**
+ * Merge params with parent params
+ *
+ * @private
+ */
+
+function mergeParams (params, parent) {
+  if (typeof parent !== 'object' || !parent) {
+    return params
+  }
+
+  // make copy of parent for base
+  const obj = Object.assign({}, parent)
+
+  // simple non-numeric merging
+  if (!(0 in params) || !(0 in parent)) {
+    return Object.assign(obj, params)
+  }
+
+  let i = 0
+  let o = 0
+
+  // determine numeric gap in params
+  while (i in params) {
+    i++
+  }
+
+  // determine numeric gap in parent
+  while (o in parent) {
+    o++
+  }
+
+  // offset numeric indices in params before merge
+  for (i--; i >= 0; i--) {
+    params[i + o] = params[i]
+
+    // create holes for the merge when necessary
+    if (i < o) {
+      delete params[i]
+    }
+  }
+
+  return Object.assign(obj, params)
+}
+
+/**
+ * Process any parameters for the layer.
+ *
+ * @private
+ */
+
+function processParams (params, layer, called, req, res, done) {
+  // captured parameters from the layer, keys and values
+  const keys = layer.keys
+
+  // fast track
+  if (!keys || keys.length === 0) {
+    return done()
+  }
+
+  let i = 0
+  let paramIndex = 0
+  let key
+  let paramVal
+  let paramCallbacks
+  let paramCalled
+
+  // process params in order
+  // param callbacks can be async
+  function param (err) {
+    if (err) {
+      return done(err)
+    }
+
+    if (i >= keys.length) {
+      return done()
+    }
+
+    paramIndex = 0
+    key = keys[i++]
+    paramVal = req.params[key]
+    paramCallbacks = params[key]
+    paramCalled = called[key]
+
+    if (paramVal === undefined || !paramCallbacks) {
+      return param()
+    }
+
+    // param previously called with same value or error occurred
+    if (paramCalled && (paramCalled.match === paramVal ||
+      (paramCalled.error && paramCalled.error !== 'route'))) {
+      // restore value
+      req.params[key] = paramCalled.value
+
+      // next param
+      return param(paramCalled.error)
+    }
+
+    called[key] = paramCalled = {
+      error: null,
+      match: paramVal,
+      value: paramVal
+    }
+
+    paramCallback()
+  }
+
+  // single param callbacks
+  function paramCallback (err) {
+    const fn = paramCallbacks[paramIndex++]
+
+    // store updated value
+    paramCalled.value = req.params[key]
+
+    if (err) {
+      // store error
+      paramCalled.error = err
+      param(err)
+      return
+    }
+
+    if (!fn) return param()
+
+    try {
+      const ret = fn(req, res, paramCallback, paramVal, key)
+      if (isPromise(ret)) {
+        if (!(ret instanceof Promise)) {
+          deprecate('parameters that are Promise-like are deprecated, use a native Promise instead')
+        }
+
+        ret.then(null, function (error) {
+          paramCallback(error || new Error('Rejected promise'))
+        })
+      }
+    } catch (e) {
+      paramCallback(e)
+    }
+  }
+
+  param()
+}
+
+/**
+ * Restore obj props after function
+ *
+ * @private
+ */
+
+function restore (fn, obj) {
+  const props = new Array(arguments.length - 2)
+  const vals = new Array(arguments.length - 2)
+
+  for (let i = 0; i < props.length; i++) {
+    props[i] = arguments[i + 2]
+    vals[i] = obj[props[i]]
+  }
+
+  return function () {
+    // restore vals
+    for (let i = 0; i < props.length; i++) {
+      obj[props[i]] = vals[i]
+    }
+
+    return fn.apply(this, arguments)
+  }
+}
+
+/**
+ * Send an OPTIONS response.
+ *
+ * @private
+ */
+
+function sendOptionsResponse (res, methods) {
+  const options = Object.create(null)
+
+  // build unique method map
+  for (let i = 0; i < methods.length; i++) {
+    options[methods[i]] = true
+  }
+
+  // construct the allow list
+  const allow = Object.keys(options).sort().join(', ')
+
+  // send response
+  res.setHeader('Allow', allow)
+  res.setHeader('Content-Length', Buffer.byteLength(allow))
+  res.setHeader('Content-Type', 'text/plain')
+  res.setHeader('X-Content-Type-Options', 'nosniff')
+  res.end(allow)
+}
+
+/**
+ * Try to send an OPTIONS response.
+ *
+ * @private
+ */
+
+function trySendOptionsResponse (res, methods, next) {
+  try {
+    sendOptionsResponse(res, methods)
+  } catch (err) {
+    next(err)
+  }
+}
+
+/**
+ * Wrap a function
+ *
+ * @private
+ */
+
+function wrap (old, fn) {
+  return function proxy () {
+    const args = new Array(arguments.length + 1)
+
+    args[0] = old
+    for (let i = 0, len = arguments.length; i < len; i++) {
+      args[i + 1] = arguments[i]
+    }
+
+    fn.apply(this, args)
+  }
+}
diff --git a/backend/node_modules/router/lib/layer.js b/backend/node_modules/router/lib/layer.js
new file mode 100644
index 0000000..6a4408f
--- /dev/null
+++ b/backend/node_modules/router/lib/layer.js
@@ -0,0 +1,247 @@
+/*!
+ * router
+ * Copyright(c) 2013 Roman Shtylman
+ * Copyright(c) 2014-2022 Douglas Christopher Wilson
+ * MIT Licensed
+ */
+
+'use strict'
+
+/**
+ * Module dependencies.
+ * @private
+ */
+
+const isPromise = require('is-promise')
+const pathRegexp = require('path-to-regexp')
+const debug = require('debug')('router:layer')
+const deprecate = require('depd')('router')
+
+/**
+ * Module variables.
+ * @private
+ */
+
+const TRAILING_SLASH_REGEXP = /\/+$/
+const MATCHING_GROUP_REGEXP = /\((?:\?<(.*?)>)?(?!\?)/g
+
+/**
+ * Expose `Layer`.
+ */
+
+module.exports = Layer
+
+function Layer (path, options, fn) {
+  if (!(this instanceof Layer)) {
+    return new Layer(path, options, fn)
+  }
+
+  debug('new %o', path)
+  const opts = options || {}
+
+  this.handle = fn
+  this.keys = []
+  this.name = fn.name || '<anonymous>'
+  this.params = undefined
+  this.path = undefined
+  this.slash = path === '/' && opts.end === false
+
+  function matcher (_path) {
+    if (_path instanceof RegExp) {
+      const keys = []
+      let name = 0
+      let m
+      // eslint-disable-next-line no-cond-assign
+      while (m = MATCHING_GROUP_REGEXP.exec(_path.source)) {
+        keys.push({
+          name: m[1] || name++,
+          offset: m.index
+        })
+      }
+
+      return function regexpMatcher (p) {
+        const match = _path.exec(p)
+        if (!match) {
+          return false
+        }
+
+        const params = {}
+        for (let i = 1; i < match.length; i++) {
+          const key = keys[i - 1]
+          const prop = key.name
+          const val = decodeParam(match[i])
+
+          if (val !== undefined) {
+            params[prop] = val
+          }
+        }
+
+        return {
+          params,
+          path: match[0]
+        }
+      }
+    }
+
+    return pathRegexp.match((opts.strict ? _path : loosen(_path)), {
+      sensitive: opts.sensitive,
+      end: opts.end,
+      trailing: !opts.strict,
+      decode: decodeParam
+    })
+  }
+  this.matchers = Array.isArray(path) ? path.map(matcher) : [matcher(path)]
+}
+
+/**
+ * Handle the error for the layer.
+ *
+ * @param {Error} error
+ * @param {Request} req
+ * @param {Response} res
+ * @param {function} next
+ * @api private
+ */
+
+Layer.prototype.handleError = function handleError (error, req, res, next) {
+  const fn = this.handle
+
+  if (fn.length !== 4) {
+    // not a standard error handler
+    return next(error)
+  }
+
+  try {
+    // invoke function
+    const ret = fn(error, req, res, next)
+
+    // wait for returned promise
+    if (isPromise(ret)) {
+      if (!(ret instanceof Promise)) {
+        deprecate('handlers that are Promise-like are deprecated, use a native Promise instead')
+      }
+
+      ret.then(null, function (error) {
+        next(error || new Error('Rejected promise'))
+      })
+    }
+  } catch (err) {
+    next(err)
+  }
+}
+
+/**
+ * Handle the request for the layer.
+ *
+ * @param {Request} req
+ * @param {Response} res
+ * @param {function} next
+ * @api private
+ */
+
+Layer.prototype.handleRequest = function handleRequest (req, res, next) {
+  const fn = this.handle
+
+  if (fn.length > 3) {
+    // not a standard request handler
+    return next()
+  }
+
+  try {
+    // invoke function
+    const ret = fn(req, res, next)
+
+    // wait for returned promise
+    if (isPromise(ret)) {
+      if (!(ret instanceof Promise)) {
+        deprecate('handlers that are Promise-like are deprecated, use a native Promise instead')
+      }
+
+      ret.then(null, function (error) {
+        next(error || new Error('Rejected promise'))
+      })
+    }
+  } catch (err) {
+    next(err)
+  }
+}
+
+/**
+ * Check if this route matches `path`, if so
+ * populate `.params`.
+ *
+ * @param {String} path
+ * @return {Boolean}
+ * @api private
+ */
+
+Layer.prototype.match = function match (path) {
+  let match
+
+  if (path != null) {
+    // fast path non-ending match for / (any path matches)
+    if (this.slash) {
+      this.params = {}
+      this.path = ''
+      return true
+    }
+
+    let i = 0
+    while (!match && i < this.matchers.length) {
+      // match the path
+      match = this.matchers[i](path)
+      i++
+    }
+  }
+
+  if (!match) {
+    this.params = undefined
+    this.path = undefined
+    return false
+  }
+
+  // store values
+  this.params = match.params
+  this.path = match.path
+  this.keys = Object.keys(match.params)
+
+  return true
+}
+
+/**
+ * Decode param value.
+ *
+ * @param {string} val
+ * @return {string}
+ * @private
+ */
+
+function decodeParam (val) {
+  if (typeof val !== 'string' || val.length === 0) {
+    return val
+  }
+
+  try {
+    return decodeURIComponent(val)
+  } catch (err) {
+    if (err instanceof URIError) {
+      err.message = 'Failed to decode param \'' + val + '\''
+      err.status = 400
+    }
+
+    throw err
+  }
+}
+
+/**
+ * Loosens the given path for path-to-regexp matching.
+ */
+function loosen (path) {
+  if (path instanceof RegExp || path === '/') {
+    return path
+  }
+
+  return Array.isArray(path)
+    ? path.map(function (p) { return loosen(p) })
+    : String(path).replace(TRAILING_SLASH_REGEXP, '')
+}
diff --git a/backend/node_modules/router/lib/route.js b/backend/node_modules/router/lib/route.js
new file mode 100644
index 0000000..1887d78
--- /dev/null
+++ b/backend/node_modules/router/lib/route.js
@@ -0,0 +1,242 @@
+/*!
+ * router
+ * Copyright(c) 2013 Roman Shtylman
+ * Copyright(c) 2014-2022 Douglas Christopher Wilson
+ * MIT Licensed
+ */
+
+'use strict'
+
+/**
+ * Module dependencies.
+ * @private
+ */
+
+const debug = require('debug')('router:route')
+const Layer = require('./layer')
+const { METHODS } = require('node:http')
+
+/**
+ * Module variables.
+ * @private
+ */
+
+const slice = Array.prototype.slice
+const flatten = Array.prototype.flat
+const methods = METHODS.map((method) => method.toLowerCase())
+
+/**
+ * Expose `Route`.
+ */
+
+module.exports = Route
+
+/**
+ * Initialize `Route` with the given `path`,
+ *
+ * @param {String} path
+ * @api private
+ */
+
+function Route (path) {
+  debug('new %o', path)
+  this.path = path
+  this.stack = []
+
+  // route handlers for various http methods
+  this.methods = Object.create(null)
+}
+
+/**
+ * @private
+ */
+
+Route.prototype._handlesMethod = function _handlesMethod (method) {
+  if (this.methods._all) {
+    return true
+  }
+
+  // normalize name
+  let name = typeof method === 'string'
+    ? method.toLowerCase()
+    : method
+
+  if (name === 'head' && !this.methods.head) {
+    name = 'get'
+  }
+
+  return Boolean(this.methods[name])
+}
+
+/**
+ * @return {array} supported HTTP methods
+ * @private
+ */
+
+Route.prototype._methods = function _methods () {
+  const methods = Object.keys(this.methods)
+
+  // append automatic head
+  if (this.methods.get && !this.methods.head) {
+    methods.push('head')
+  }
+
+  for (let i = 0; i < methods.length; i++) {
+    // make upper case
+    methods[i] = methods[i].toUpperCase()
+  }
+
+  return methods
+}
+
+/**
+ * dispatch req, res into this route
+ *
+ * @private
+ */
+
+Route.prototype.dispatch = function dispatch (req, res, done) {
+  let idx = 0
+  const stack = this.stack
+  let sync = 0
+
+  if (stack.length === 0) {
+    return done()
+  }
+
+  let method = typeof req.method === 'string'
+    ? req.method.toLowerCase()
+    : req.method
+
+  if (method === 'head' && !this.methods.head) {
+    method = 'get'
+  }
+
+  req.route = this
+
+  next()
+
+  function next (err) {
+    // signal to exit route
+    if (err && err === 'route') {
+      return done()
+    }
+
+    // signal to exit router
+    if (err && err === 'router') {
+      return done(err)
+    }
+
+    // no more matching layers
+    if (idx >= stack.length) {
+      return done(err)
+    }
+
+    // max sync stack
+    if (++sync > 100) {
+      return setImmediate(next, err)
+    }
+
+    let layer
+    let match
+
+    // find next matching layer
+    while (match !== true && idx < stack.length) {
+      layer = stack[idx++]
+      match = !layer.method || layer.method === method
+    }
+
+    // no match
+    if (match !== true) {
+      return done(err)
+    }
+
+    if (err) {
+      layer.handleError(err, req, res, next)
+    } else {
+      layer.handleRequest(req, res, next)
+    }
+
+    sync = 0
+  }
+}
+
+/**
+ * Add a handler for all HTTP verbs to this route.
+ *
+ * Behaves just like middleware and can respond or call `next`
+ * to continue processing.
+ *
+ * You can use multiple `.all` call to add multiple handlers.
+ *
+ *   function check_something(req, res, next){
+ *     next()
+ *   }
+ *
+ *   function validate_user(req, res, next){
+ *     next()
+ *   }
+ *
+ *   route
+ *   .all(validate_user)
+ *   .all(check_something)
+ *   .get(function(req, res, next){
+ *     res.send('hello world')
+ *   })
+ *
+ * @param {array|function} handler
+ * @return {Route} for chaining
+ * @api public
+ */
+
+Route.prototype.all = function all (handler) {
+  const callbacks = flatten.call(slice.call(arguments), Infinity)
+
+  if (callbacks.length === 0) {
+    throw new TypeError('argument handler is required')
+  }
+
+  for (let i = 0; i < callbacks.length; i++) {
+    const fn = callbacks[i]
+
+    if (typeof fn !== 'function') {
+      throw new TypeError('argument handler must be a function')
+    }
+
+    const layer = Layer('/', {}, fn)
+    layer.method = undefined
+
+    this.methods._all = true
+    this.stack.push(layer)
+  }
+
+  return this
+}
+
+methods.forEach(function (method) {
+  Route.prototype[method] = function (handler) {
+    const callbacks = flatten.call(slice.call(arguments), Infinity)
+
+    if (callbacks.length === 0) {
+      throw new TypeError('argument handler is required')
+    }
+
+    for (let i = 0; i < callbacks.length; i++) {
+      const fn = callbacks[i]
+
+      if (typeof fn !== 'function') {
+        throw new TypeError('argument handler must be a function')
+      }
+
+      debug('%s %s', method, this.path)
+
+      const layer = Layer('/', {}, fn)
+      layer.method = method
+
+      this.methods[method] = true
+      this.stack.push(layer)
+    }
+
+    return this
+  }
+})
diff --git a/backend/node_modules/router/package.json b/backend/node_modules/router/package.json
new file mode 100644
index 0000000..123eca2
--- /dev/null
+++ b/backend/node_modules/router/package.json
@@ -0,0 +1,44 @@
+{
+  "name": "router",
+  "description": "Simple middleware-style router",
+  "version": "2.2.0",
+  "author": "Douglas Christopher Wilson <doug@somethingdoug.com>",
+  "contributors": [
+    "Blake Embrey <hello@blakeembrey.com>"
+  ],
+  "license": "MIT",
+  "repository": "pillarjs/router",
+  "dependencies": {
+    "debug": "^4.4.0",
+    "depd": "^2.0.0",
+    "is-promise": "^4.0.0",
+    "parseurl": "^1.3.3",
+    "path-to-regexp": "^8.0.0"
+  },
+  "devDependencies": {
+    "finalhandler": "^2.1.0",
+    "mocha": "10.2.0",
+    "nyc": "15.1.0",
+    "run-series": "^1.1.9",
+    "standard": "^17.1.0",
+    "supertest": "6.3.3"
+  },
+  "files": [
+    "lib/",
+    "LICENSE",
+    "HISTORY.md",
+    "README.md",
+    "index.js"
+  ],
+  "engines": {
+    "node": ">= 18"
+  },
+  "scripts": {
+    "lint": "standard",
+    "test": "mocha --reporter spec --bail --check-leaks test/",
+    "test:debug": "mocha --reporter spec --bail --check-leaks test/ --inspect --inspect-brk",
+    "test-ci": "nyc --reporter=lcov --reporter=text npm test",
+    "test-cov": "nyc --reporter=text npm test",
+    "version": "node scripts/version-history.js && git add HISTORY.md"
+  }
+}
diff --git a/backend/node_modules/safe-buffer/LICENSE b/backend/node_modules/safe-buffer/LICENSE
new file mode 100644
index 0000000..0c068ce
--- /dev/null
+++ b/backend/node_modules/safe-buffer/LICENSE
@@ -0,0 +1,21 @@
+The MIT License (MIT)
+
+Copyright (c) Feross Aboukhadijeh
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
diff --git a/backend/node_modules/safe-buffer/README.md b/backend/node_modules/safe-buffer/README.md
new file mode 100644
index 0000000..e9a81af
--- /dev/null
+++ b/backend/node_modules/safe-buffer/README.md
@@ -0,0 +1,584 @@
+# safe-buffer [![travis][travis-image]][travis-url] [![npm][npm-image]][npm-url] [![downloads][downloads-image]][downloads-url] [![javascript style guide][standard-image]][standard-url]
+
+[travis-image]: https://img.shields.io/travis/feross/safe-buffer/master.svg
+[travis-url]: https://travis-ci.org/feross/safe-buffer
+[npm-image]: https://img.shields.io/npm/v/safe-buffer.svg
+[npm-url]: https://npmjs.org/package/safe-buffer
+[downloads-image]: https://img.shields.io/npm/dm/safe-buffer.svg
+[downloads-url]: https://npmjs.org/package/safe-buffer
+[standard-image]: https://img.shields.io/badge/code_style-standard-brightgreen.svg
+[standard-url]: https://standardjs.com
+
+#### Safer Node.js Buffer API
+
+**Use the new Node.js Buffer APIs (`Buffer.from`, `Buffer.alloc`,
+`Buffer.allocUnsafe`, `Buffer.allocUnsafeSlow`) in all versions of Node.js.**
+
+**Uses the built-in implementation when available.**
+
+## install
+
+```
+npm install safe-buffer
+```
+
+## usage
+
+The goal of this package is to provide a safe replacement for the node.js `Buffer`.
+
+It's a drop-in replacement for `Buffer`. You can use it by adding one `require` line to
+the top of your node.js modules:
+
+```js
+var Buffer = require('safe-buffer').Buffer
+
+// Existing buffer code will continue to work without issues:
+
+new Buffer('hey', 'utf8')
+new Buffer([1, 2, 3], 'utf8')
+new Buffer(obj)
+new Buffer(16) // create an uninitialized buffer (potentially unsafe)
+
+// But you can use these new explicit APIs to make clear what you want:
+
+Buffer.from('hey', 'utf8') // convert from many types to a Buffer
+Buffer.alloc(16) // create a zero-filled buffer (safe)
+Buffer.allocUnsafe(16) // create an uninitialized buffer (potentially unsafe)
+```
+
+## api
+
+### Class Method: Buffer.from(array)
+<!-- YAML
+added: v3.0.0
+-->
+
+* `array` {Array}
+
+Allocates a new `Buffer` using an `array` of octets.
+
+```js
+const buf = Buffer.from([0x62,0x75,0x66,0x66,0x65,0x72]);
+  // creates a new Buffer containing ASCII bytes
+  // ['b','u','f','f','e','r']
+```
+
+A `TypeError` will be thrown if `array` is not an `Array`.
+
+### Class Method: Buffer.from(arrayBuffer[, byteOffset[, length]])
+<!-- YAML
+added: v5.10.0
+-->
+
+* `arrayBuffer` {ArrayBuffer} The `.buffer` property of a `TypedArray` or
+  a `new ArrayBuffer()`
+* `byteOffset` {Number} Default: `0`
+* `length` {Number} Default: `arrayBuffer.length - byteOffset`
+
+When passed a reference to the `.buffer` property of a `TypedArray` instance,
+the newly created `Buffer` will share the same allocated memory as the
+TypedArray.
+
+```js
+const arr = new Uint16Array(2);
+arr[0] = 5000;
+arr[1] = 4000;
+
+const buf = Buffer.from(arr.buffer); // shares the memory with arr;
+
+console.log(buf);
+  // Prints: <Buffer 88 13 a0 0f>
+
+// changing the TypedArray changes the Buffer also
+arr[1] = 6000;
+
+console.log(buf);
+  // Prints: <Buffer 88 13 70 17>
+```
+
+The optional `byteOffset` and `length` arguments specify a memory range within
+the `arrayBuffer` that will be shared by the `Buffer`.
+
+```js
+const ab = new ArrayBuffer(10);
+const buf = Buffer.from(ab, 0, 2);
+console.log(buf.length);
+  // Prints: 2
+```
+
+A `TypeError` will be thrown if `arrayBuffer` is not an `ArrayBuffer`.
+
+### Class Method: Buffer.from(buffer)
+<!-- YAML
+added: v3.0.0
+-->
+
+* `buffer` {Buffer}
+
+Copies the passed `buffer` data onto a new `Buffer` instance.
+
+```js
+const buf1 = Buffer.from('buffer');
+const buf2 = Buffer.from(buf1);
+
+buf1[0] = 0x61;
+console.log(buf1.toString());
+  // 'auffer'
+console.log(buf2.toString());
+  // 'buffer' (copy is not changed)
+```
+
+A `TypeError` will be thrown if `buffer` is not a `Buffer`.
+
+### Class Method: Buffer.from(str[, encoding])
+<!-- YAML
+added: v5.10.0
+-->
+
+* `str` {String} String to encode.
+* `encoding` {String} Encoding to use, Default: `'utf8'`
+
+Creates a new `Buffer` containing the given JavaScript string `str`. If
+provided, the `encoding` parameter identifies the character encoding.
+If not provided, `encoding` defaults to `'utf8'`.
+
+```js
+const buf1 = Buffer.from('this is a tést');
+console.log(buf1.toString());
+  // prints: this is a tést
+console.log(buf1.toString('ascii'));
+  // prints: this is a tC)st
+
+const buf2 = Buffer.from('7468697320697320612074c3a97374', 'hex');
+console.log(buf2.toString());
+  // prints: this is a tést
+```
+
+A `TypeError` will be thrown if `str` is not a string.
+
+### Class Method: Buffer.alloc(size[, fill[, encoding]])
+<!-- YAML
+added: v5.10.0
+-->
+
+* `size` {Number}
+* `fill` {Value} Default: `undefined`
+* `encoding` {String} Default: `utf8`
+
+Allocates a new `Buffer` of `size` bytes. If `fill` is `undefined`, the
+`Buffer` will be *zero-filled*.
+
+```js
+const buf = Buffer.alloc(5);
+console.log(buf);
+  // <Buffer 00 00 00 00 00>
+```
+
+The `size` must be less than or equal to the value of
+`require('buffer').kMaxLength` (on 64-bit architectures, `kMaxLength` is
+`(2^31)-1`). Otherwise, a [`RangeError`][] is thrown. A zero-length Buffer will
+be created if a `size` less than or equal to 0 is specified.
+
+If `fill` is specified, the allocated `Buffer` will be initialized by calling
+`buf.fill(fill)`. See [`buf.fill()`][] for more information.
+
+```js
+const buf = Buffer.alloc(5, 'a');
+console.log(buf);
+  // <Buffer 61 61 61 61 61>
+```
+
+If both `fill` and `encoding` are specified, the allocated `Buffer` will be
+initialized by calling `buf.fill(fill, encoding)`. For example:
+
+```js
+const buf = Buffer.alloc(11, 'aGVsbG8gd29ybGQ=', 'base64');
+console.log(buf);
+  // <Buffer 68 65 6c 6c 6f 20 77 6f 72 6c 64>
+```
+
+Calling `Buffer.alloc(size)` can be significantly slower than the alternative
+`Buffer.allocUnsafe(size)` but ensures that the newly created `Buffer` instance
+contents will *never contain sensitive data*.
+
+A `TypeError` will be thrown if `size` is not a number.
+
+### Class Method: Buffer.allocUnsafe(size)
+<!-- YAML
+added: v5.10.0
+-->
+
+* `size` {Number}
+
+Allocates a new *non-zero-filled* `Buffer` of `size` bytes.  The `size` must
+be less than or equal to the value of `require('buffer').kMaxLength` (on 64-bit
+architectures, `kMaxLength` is `(2^31)-1`). Otherwise, a [`RangeError`][] is
+thrown. A zero-length Buffer will be created if a `size` less than or equal to
+0 is specified.
+
+The underlying memory for `Buffer` instances created in this way is *not
+initialized*. The contents of the newly created `Buffer` are unknown and
+*may contain sensitive data*. Use [`buf.fill(0)`][] to initialize such
+`Buffer` instances to zeroes.
+
+```js
+const buf = Buffer.allocUnsafe(5);
+console.log(buf);
+  // <Buffer 78 e0 82 02 01>
+  // (octets will be different, every time)
+buf.fill(0);
+console.log(buf);
+  // <Buffer 00 00 00 00 00>
+```
+
+A `TypeError` will be thrown if `size` is not a number.
+
+Note that the `Buffer` module pre-allocates an internal `Buffer` instance of
+size `Buffer.poolSize` that is used as a pool for the fast allocation of new
+`Buffer` instances created using `Buffer.allocUnsafe(size)` (and the deprecated
+`new Buffer(size)` constructor) only when `size` is less than or equal to
+`Buffer.poolSize >> 1` (floor of `Buffer.poolSize` divided by two). The default
+value of `Buffer.poolSize` is `8192` but can be modified.
+
+Use of this pre-allocated internal memory pool is a key difference between
+calling `Buffer.alloc(size, fill)` vs. `Buffer.allocUnsafe(size).fill(fill)`.
+Specifically, `Buffer.alloc(size, fill)` will *never* use the internal Buffer
+pool, while `Buffer.allocUnsafe(size).fill(fill)` *will* use the internal
+Buffer pool if `size` is less than or equal to half `Buffer.poolSize`. The
+difference is subtle but can be important when an application requires the
+additional performance that `Buffer.allocUnsafe(size)` provides.
+
+### Class Method: Buffer.allocUnsafeSlow(size)
+<!-- YAML
+added: v5.10.0
+-->
+
+* `size` {Number}
+
+Allocates a new *non-zero-filled* and non-pooled `Buffer` of `size` bytes.  The
+`size` must be less than or equal to the value of
+`require('buffer').kMaxLength` (on 64-bit architectures, `kMaxLength` is
+`(2^31)-1`). Otherwise, a [`RangeError`][] is thrown. A zero-length Buffer will
+be created if a `size` less than or equal to 0 is specified.
+
+The underlying memory for `Buffer` instances created in this way is *not
+initialized*. The contents of the newly created `Buffer` are unknown and
+*may contain sensitive data*. Use [`buf.fill(0)`][] to initialize such
+`Buffer` instances to zeroes.
+
+When using `Buffer.allocUnsafe()` to allocate new `Buffer` instances,
+allocations under 4KB are, by default, sliced from a single pre-allocated
+`Buffer`. This allows applications to avoid the garbage collection overhead of
+creating many individually allocated Buffers. This approach improves both
+performance and memory usage by eliminating the need to track and cleanup as
+many `Persistent` objects.
+
+However, in the case where a developer may need to retain a small chunk of
+memory from a pool for an indeterminate amount of time, it may be appropriate
+to create an un-pooled Buffer instance using `Buffer.allocUnsafeSlow()` then
+copy out the relevant bits.
+
+```js
+// need to keep around a few small chunks of memory
+const store = [];
+
+socket.on('readable', () => {
+  const data = socket.read();
+  // allocate for retained data
+  const sb = Buffer.allocUnsafeSlow(10);
+  // copy the data into the new allocation
+  data.copy(sb, 0, 0, 10);
+  store.push(sb);
+});
+```
+
+Use of `Buffer.allocUnsafeSlow()` should be used only as a last resort *after*
+a developer has observed undue memory retention in their applications.
+
+A `TypeError` will be thrown if `size` is not a number.
+
+### All the Rest
+
+The rest of the `Buffer` API is exactly the same as in node.js.
+[See the docs](https://nodejs.org/api/buffer.html).
+
+
+## Related links
+
+- [Node.js issue: Buffer(number) is unsafe](https://github.com/nodejs/node/issues/4660)
+- [Node.js Enhancement Proposal: Buffer.from/Buffer.alloc/Buffer.zalloc/Buffer() soft-deprecate](https://github.com/nodejs/node-eps/pull/4)
+
+## Why is `Buffer` unsafe?
+
+Today, the node.js `Buffer` constructor is overloaded to handle many different argument
+types like `String`, `Array`, `Object`, `TypedArrayView` (`Uint8Array`, etc.),
+`ArrayBuffer`, and also `Number`.
+
+The API is optimized for convenience: you can throw any type at it, and it will try to do
+what you want.
+
+Because the Buffer constructor is so powerful, you often see code like this:
+
+```js
+// Convert UTF-8 strings to hex
+function toHex (str) {
+  return new Buffer(str).toString('hex')
+}
+```
+
+***But what happens if `toHex` is called with a `Number` argument?***
+
+### Remote Memory Disclosure
+
+If an attacker can make your program call the `Buffer` constructor with a `Number`
+argument, then they can make it allocate uninitialized memory from the node.js process.
+This could potentially disclose TLS private keys, user data, or database passwords.
+
+When the `Buffer` constructor is passed a `Number` argument, it returns an
+**UNINITIALIZED** block of memory of the specified `size`. When you create a `Buffer` like
+this, you **MUST** overwrite the contents before returning it to the user.
+
+From the [node.js docs](https://nodejs.org/api/buffer.html#buffer_new_buffer_size):
+
+> `new Buffer(size)`
+>
+> - `size` Number
+>
+> The underlying memory for `Buffer` instances created in this way is not initialized.
+> **The contents of a newly created `Buffer` are unknown and could contain sensitive
+> data.** Use `buf.fill(0)` to initialize a Buffer to zeroes.
+
+(Emphasis our own.)
+
+Whenever the programmer intended to create an uninitialized `Buffer` you often see code
+like this:
+
+```js
+var buf = new Buffer(16)
+
+// Immediately overwrite the uninitialized buffer with data from another buffer
+for (var i = 0; i < buf.length; i++) {
+  buf[i] = otherBuf[i]
+}
+```
+
+
+### Would this ever be a problem in real code?
+
+Yes. It's surprisingly common to forget to check the type of your variables in a
+dynamically-typed language like JavaScript.
+
+Usually the consequences of assuming the wrong type is that your program crashes with an
+uncaught exception. But the failure mode for forgetting to check the type of arguments to
+the `Buffer` constructor is more catastrophic.
+
+Here's an example of a vulnerable service that takes a JSON payload and converts it to
+hex:
+
+```js
+// Take a JSON payload {str: "some string"} and convert it to hex
+var server = http.createServer(function (req, res) {
+  var data = ''
+  req.setEncoding('utf8')
+  req.on('data', function (chunk) {
+    data += chunk
+  })
+  req.on('end', function () {
+    var body = JSON.parse(data)
+    res.end(new Buffer(body.str).toString('hex'))
+  })
+})
+
+server.listen(8080)
+```
+
+In this example, an http client just has to send:
+
+```json
+{
+  "str": 1000
+}
+```
+
+and it will get back 1,000 bytes of uninitialized memory from the server.
+
+This is a very serious bug. It's similar in severity to the
+[the Heartbleed bug](http://heartbleed.com/) that allowed disclosure of OpenSSL process
+memory by remote attackers.
+
+
+### Which real-world packages were vulnerable?
+
+#### [`bittorrent-dht`](https://www.npmjs.com/package/bittorrent-dht)
+
+[Mathias Buus](https://github.com/mafintosh) and I
+([Feross Aboukhadijeh](http://feross.org/)) found this issue in one of our own packages,
+[`bittorrent-dht`](https://www.npmjs.com/package/bittorrent-dht). The bug would allow
+anyone on the internet to send a series of messages to a user of `bittorrent-dht` and get
+them to reveal 20 bytes at a time of uninitialized memory from the node.js process.
+
+Here's
+[the commit](https://github.com/feross/bittorrent-dht/commit/6c7da04025d5633699800a99ec3fbadf70ad35b8)
+that fixed it. We released a new fixed version, created a
+[Node Security Project disclosure](https://nodesecurity.io/advisories/68), and deprecated all
+vulnerable versions on npm so users will get a warning to upgrade to a newer version.
+
+#### [`ws`](https://www.npmjs.com/package/ws)
+
+That got us wondering if there were other vulnerable packages. Sure enough, within a short
+period of time, we found the same issue in [`ws`](https://www.npmjs.com/package/ws), the
+most popular WebSocket implementation in node.js.
+
+If certain APIs were called with `Number` parameters instead of `String` or `Buffer` as
+expected, then uninitialized server memory would be disclosed to the remote peer.
+
+These were the vulnerable methods:
+
+```js
+socket.send(number)
+socket.ping(number)
+socket.pong(number)
+```
+
+Here's a vulnerable socket server with some echo functionality:
+
+```js
+server.on('connection', function (socket) {
+  socket.on('message', function (message) {
+    message = JSON.parse(message)
+    if (message.type === 'echo') {
+      socket.send(message.data) // send back the user's message
+    }
+  })
+})
+```
+
+`socket.send(number)` called on the server, will disclose server memory.
+
+Here's [the release](https://github.com/websockets/ws/releases/tag/1.0.1) where the issue
+was fixed, with a more detailed explanation. Props to
+[Arnout Kazemier](https://github.com/3rd-Eden) for the quick fix. Here's the
+[Node Security Project disclosure](https://nodesecurity.io/advisories/67).
+
+
+### What's the solution?
+
+It's important that node.js offers a fast way to get memory otherwise performance-critical
+applications would needlessly get a lot slower.
+
+But we need a better way to *signal our intent* as programmers. **When we want
+uninitialized memory, we should request it explicitly.**
+
+Sensitive functionality should not be packed into a developer-friendly API that loosely
+accepts many different types. This type of API encourages the lazy practice of passing
+variables in without checking the type very carefully.
+
+#### A new API: `Buffer.allocUnsafe(number)`
+
+The functionality of creating buffers with uninitialized memory should be part of another
+API. We propose `Buffer.allocUnsafe(number)`. This way, it's not part of an API that
+frequently gets user input of all sorts of different types passed into it.
+
+```js
+var buf = Buffer.allocUnsafe(16) // careful, uninitialized memory!
+
+// Immediately overwrite the uninitialized buffer with data from another buffer
+for (var i = 0; i < buf.length; i++) {
+  buf[i] = otherBuf[i]
+}
+```
+
+
+### How do we fix node.js core?
+
+We sent [a PR to node.js core](https://github.com/nodejs/node/pull/4514) (merged as
+`semver-major`) which defends against one case:
+
+```js
+var str = 16
+new Buffer(str, 'utf8')
+```
+
+In this situation, it's implied that the programmer intended the first argument to be a
+string, since they passed an encoding as a second argument. Today, node.js will allocate
+uninitialized memory in the case of `new Buffer(number, encoding)`, which is probably not
+what the programmer intended.
+
+But this is only a partial solution, since if the programmer does `new Buffer(variable)`
+(without an `encoding` parameter) there's no way to know what they intended. If `variable`
+is sometimes a number, then uninitialized memory will sometimes be returned.
+
+### What's the real long-term fix?
+
+We could deprecate and remove `new Buffer(number)` and use `Buffer.allocUnsafe(number)` when
+we need uninitialized memory. But that would break 1000s of packages.
+
+~~We believe the best solution is to:~~
+
+~~1. Change `new Buffer(number)` to return safe, zeroed-out memory~~
+
+~~2. Create a new API for creating uninitialized Buffers. We propose: `Buffer.allocUnsafe(number)`~~
+
+#### Update
+
+We now support adding three new APIs:
+
+- `Buffer.from(value)` - convert from any type to a buffer
+- `Buffer.alloc(size)` - create a zero-filled buffer
+- `Buffer.allocUnsafe(size)` - create an uninitialized buffer with given size
+
+This solves the core problem that affected `ws` and `bittorrent-dht` which is
+`Buffer(variable)` getting tricked into taking a number argument.
+
+This way, existing code continues working and the impact on the npm ecosystem will be
+minimal. Over time, npm maintainers can migrate performance-critical code to use
+`Buffer.allocUnsafe(number)` instead of `new Buffer(number)`.
+
+
+### Conclusion
+
+We think there's a serious design issue with the `Buffer` API as it exists today. It
+promotes insecure software by putting high-risk functionality into a convenient API
+with friendly "developer ergonomics".
+
+This wasn't merely a theoretical exercise because we found the issue in some of the
+most popular npm packages.
+
+Fortunately, there's an easy fix that can be applied today. Use `safe-buffer` in place of
+`buffer`.
+
+```js
+var Buffer = require('safe-buffer').Buffer
+```
+
+Eventually, we hope that node.js core can switch to this new, safer behavior. We believe
+the impact on the ecosystem would be minimal since it's not a breaking change.
+Well-maintained, popular packages would be updated to use `Buffer.alloc` quickly, while
+older, insecure packages would magically become safe from this attack vector.
+
+
+## links
+
+- [Node.js PR: buffer: throw if both length and enc are passed](https://github.com/nodejs/node/pull/4514)
+- [Node Security Project disclosure for `ws`](https://nodesecurity.io/advisories/67)
+- [Node Security Project disclosure for`bittorrent-dht`](https://nodesecurity.io/advisories/68)
+
+
+## credit
+
+The original issues in `bittorrent-dht`
+([disclosure](https://nodesecurity.io/advisories/68)) and
+`ws` ([disclosure](https://nodesecurity.io/advisories/67)) were discovered by
+[Mathias Buus](https://github.com/mafintosh) and
+[Feross Aboukhadijeh](http://feross.org/).
+
+Thanks to [Adam Baldwin](https://github.com/evilpacket) for helping disclose these issues
+and for his work running the [Node Security Project](https://nodesecurity.io/).
+
+Thanks to [John Hiesey](https://github.com/jhiesey) for proofreading this README and
+auditing the code.
+
+
+## license
+
+MIT. Copyright (C) [Feross Aboukhadijeh](http://feross.org)
diff --git a/backend/node_modules/safe-buffer/index.d.ts b/backend/node_modules/safe-buffer/index.d.ts
new file mode 100644
index 0000000..e9fed80
--- /dev/null
+++ b/backend/node_modules/safe-buffer/index.d.ts
@@ -0,0 +1,187 @@
+declare module "safe-buffer" {
+  export class Buffer {
+    length: number
+    write(string: string, offset?: number, length?: number, encoding?: string): number;
+    toString(encoding?: string, start?: number, end?: number): string;
+    toJSON(): { type: 'Buffer', data: any[] };
+    equals(otherBuffer: Buffer): boolean;
+    compare(otherBuffer: Buffer, targetStart?: number, targetEnd?: number, sourceStart?: number, sourceEnd?: number): number;
+    copy(targetBuffer: Buffer, targetStart?: number, sourceStart?: number, sourceEnd?: number): number;
+    slice(start?: number, end?: number): Buffer;
+    writeUIntLE(value: number, offset: number, byteLength: number, noAssert?: boolean): number;
+    writeUIntBE(value: number, offset: number, byteLength: number, noAssert?: boolean): number;
+    writeIntLE(value: number, offset: number, byteLength: number, noAssert?: boolean): number;
+    writeIntBE(value: number, offset: number, byteLength: number, noAssert?: boolean): number;
+    readUIntLE(offset: number, byteLength: number, noAssert?: boolean): number;
+    readUIntBE(offset: number, byteLength: number, noAssert?: boolean): number;
+    readIntLE(offset: number, byteLength: number, noAssert?: boolean): number;
+    readIntBE(offset: number, byteLength: number, noAssert?: boolean): number;
+    readUInt8(offset: number, noAssert?: boolean): number;
+    readUInt16LE(offset: number, noAssert?: boolean): number;
+    readUInt16BE(offset: number, noAssert?: boolean): number;
+    readUInt32LE(offset: number, noAssert?: boolean): number;
+    readUInt32BE(offset: number, noAssert?: boolean): number;
+    readInt8(offset: number, noAssert?: boolean): number;
+    readInt16LE(offset: number, noAssert?: boolean): number;
+    readInt16BE(offset: number, noAssert?: boolean): number;
+    readInt32LE(offset: number, noAssert?: boolean): number;
+    readInt32BE(offset: number, noAssert?: boolean): number;
+    readFloatLE(offset: number, noAssert?: boolean): number;
+    readFloatBE(offset: number, noAssert?: boolean): number;
+    readDoubleLE(offset: number, noAssert?: boolean): number;
+    readDoubleBE(offset: number, noAssert?: boolean): number;
+    swap16(): Buffer;
+    swap32(): Buffer;
+    swap64(): Buffer;
+    writeUInt8(value: number, offset: number, noAssert?: boolean): number;
+    writeUInt16LE(value: number, offset: number, noAssert?: boolean): number;
+    writeUInt16BE(value: number, offset: number, noAssert?: boolean): number;
+    writeUInt32LE(value: number, offset: number, noAssert?: boolean): number;
+    writeUInt32BE(value: number, offset: number, noAssert?: boolean): number;
+    writeInt8(value: number, offset: number, noAssert?: boolean): number;
+    writeInt16LE(value: number, offset: number, noAssert?: boolean): number;
+    writeInt16BE(value: number, offset: number, noAssert?: boolean): number;
+    writeInt32LE(value: number, offset: number, noAssert?: boolean): number;
+    writeInt32BE(value: number, offset: number, noAssert?: boolean): number;
+    writeFloatLE(value: number, offset: number, noAssert?: boolean): number;
+    writeFloatBE(value: number, offset: number, noAssert?: boolean): number;
+    writeDoubleLE(value: number, offset: number, noAssert?: boolean): number;
+    writeDoubleBE(value: number, offset: number, noAssert?: boolean): number;
+    fill(value: any, offset?: number, end?: number): this;
+    indexOf(value: string | number | Buffer, byteOffset?: number, encoding?: string): number;
+    lastIndexOf(value: string | number | Buffer, byteOffset?: number, encoding?: string): number;
+    includes(value: string | number | Buffer, byteOffset?: number, encoding?: string): boolean;
+
+    /**
+     * Allocates a new buffer containing the given {str}.
+     *
+     * @param str String to store in buffer.
+     * @param encoding encoding to use, optional.  Default is 'utf8'
+     */
+     constructor (str: string, encoding?: string);
+    /**
+     * Allocates a new buffer of {size} octets.
+     *
+     * @param size count of octets to allocate.
+     */
+    constructor (size: number);
+    /**
+     * Allocates a new buffer containing the given {array} of octets.
+     *
+     * @param array The octets to store.
+     */
+    constructor (array: Uint8Array);
+    /**
+     * Produces a Buffer backed by the same allocated memory as
+     * the given {ArrayBuffer}.
+     *
+     *
+     * @param arrayBuffer The ArrayBuffer with which to share memory.
+     */
+    constructor (arrayBuffer: ArrayBuffer);
+    /**
+     * Allocates a new buffer containing the given {array} of octets.
+     *
+     * @param array The octets to store.
+     */
+    constructor (array: any[]);
+    /**
+     * Copies the passed {buffer} data onto a new {Buffer} instance.
+     *
+     * @param buffer The buffer to copy.
+     */
+    constructor (buffer: Buffer);
+    prototype: Buffer;
+    /**
+     * Allocates a new Buffer using an {array} of octets.
+     *
+     * @param array
+     */
+    static from(array: any[]): Buffer;
+    /**
+     * When passed a reference to the .buffer property of a TypedArray instance,
+     * the newly created Buffer will share the same allocated memory as the TypedArray.
+     * The optional {byteOffset} and {length} arguments specify a memory range
+     * within the {arrayBuffer} that will be shared by the Buffer.
+     *
+     * @param arrayBuffer The .buffer property of a TypedArray or a new ArrayBuffer()
+     * @param byteOffset
+     * @param length
+     */
+    static from(arrayBuffer: ArrayBuffer, byteOffset?: number, length?: number): Buffer;
+    /**
+     * Copies the passed {buffer} data onto a new Buffer instance.
+     *
+     * @param buffer
+     */
+    static from(buffer: Buffer): Buffer;
+    /**
+     * Creates a new Buffer containing the given JavaScript string {str}.
+     * If provided, the {encoding} parameter identifies the character encoding.
+     * If not provided, {encoding} defaults to 'utf8'.
+     *
+     * @param str
+     */
+    static from(str: string, encoding?: string): Buffer;
+    /**
+     * Returns true if {obj} is a Buffer
+     *
+     * @param obj object to test.
+     */
+    static isBuffer(obj: any): obj is Buffer;
+    /**
+     * Returns true if {encoding} is a valid encoding argument.
+     * Valid string encodings in Node 0.12: 'ascii'|'utf8'|'utf16le'|'ucs2'(alias of 'utf16le')|'base64'|'binary'(deprecated)|'hex'
+     *
+     * @param encoding string to test.
+     */
+    static isEncoding(encoding: string): boolean;
+    /**
+     * Gives the actual byte length of a string. encoding defaults to 'utf8'.
+     * This is not the same as String.prototype.length since that returns the number of characters in a string.
+     *
+     * @param string string to test.
+     * @param encoding encoding used to evaluate (defaults to 'utf8')
+     */
+    static byteLength(string: string, encoding?: string): number;
+    /**
+     * Returns a buffer which is the result of concatenating all the buffers in the list together.
+     *
+     * If the list has no items, or if the totalLength is 0, then it returns a zero-length buffer.
+     * If the list has exactly one item, then the first item of the list is returned.
+     * If the list has more than one item, then a new Buffer is created.
+     *
+     * @param list An array of Buffer objects to concatenate
+     * @param totalLength Total length of the buffers when concatenated.
+     *   If totalLength is not provided, it is read from the buffers in the list. However, this adds an additional loop to the function, so it is faster to provide the length explicitly.
+     */
+    static concat(list: Buffer[], totalLength?: number): Buffer;
+    /**
+     * The same as buf1.compare(buf2).
+     */
+    static compare(buf1: Buffer, buf2: Buffer): number;
+    /**
+     * Allocates a new buffer of {size} octets.
+     *
+     * @param size count of octets to allocate.
+     * @param fill if specified, buffer will be initialized by calling buf.fill(fill).
+     *    If parameter is omitted, buffer will be filled with zeros.
+     * @param encoding encoding used for call to buf.fill while initalizing
+     */
+    static alloc(size: number, fill?: string | Buffer | number, encoding?: string): Buffer;
+    /**
+     * Allocates a new buffer of {size} octets, leaving memory not initialized, so the contents
+     * of the newly created Buffer are unknown and may contain sensitive data.
+     *
+     * @param size count of octets to allocate
+     */
+    static allocUnsafe(size: number): Buffer;
+    /**
+     * Allocates a new non-pooled buffer of {size} octets, leaving memory not initialized, so the contents
+     * of the newly created Buffer are unknown and may contain sensitive data.
+     *
+     * @param size count of octets to allocate
+     */
+    static allocUnsafeSlow(size: number): Buffer;
+  }
+}
\ No newline at end of file
diff --git a/backend/node_modules/safe-buffer/index.js b/backend/node_modules/safe-buffer/index.js
new file mode 100644
index 0000000..f8d3ec9
--- /dev/null
+++ b/backend/node_modules/safe-buffer/index.js
@@ -0,0 +1,65 @@
+/*! safe-buffer. MIT License. Feross Aboukhadijeh <https://feross.org/opensource> */
+/* eslint-disable node/no-deprecated-api */
+var buffer = require('buffer')
+var Buffer = buffer.Buffer
+
+// alternative to using Object.keys for old browsers
+function copyProps (src, dst) {
+  for (var key in src) {
+    dst[key] = src[key]
+  }
+}
+if (Buffer.from && Buffer.alloc && Buffer.allocUnsafe && Buffer.allocUnsafeSlow) {
+  module.exports = buffer
+} else {
+  // Copy properties from require('buffer')
+  copyProps(buffer, exports)
+  exports.Buffer = SafeBuffer
+}
+
+function SafeBuffer (arg, encodingOrOffset, length) {
+  return Buffer(arg, encodingOrOffset, length)
+}
+
+SafeBuffer.prototype = Object.create(Buffer.prototype)
+
+// Copy static methods from Buffer
+copyProps(Buffer, SafeBuffer)
+
+SafeBuffer.from = function (arg, encodingOrOffset, length) {
+  if (typeof arg === 'number') {
+    throw new TypeError('Argument must not be a number')
+  }
+  return Buffer(arg, encodingOrOffset, length)
+}
+
+SafeBuffer.alloc = function (size, fill, encoding) {
+  if (typeof size !== 'number') {
+    throw new TypeError('Argument must be a number')
+  }
+  var buf = Buffer(size)
+  if (fill !== undefined) {
+    if (typeof encoding === 'string') {
+      buf.fill(fill, encoding)
+    } else {
+      buf.fill(fill)
+    }
+  } else {
+    buf.fill(0)
+  }
+  return buf
+}
+
+SafeBuffer.allocUnsafe = function (size) {
+  if (typeof size !== 'number') {
+    throw new TypeError('Argument must be a number')
+  }
+  return Buffer(size)
+}
+
+SafeBuffer.allocUnsafeSlow = function (size) {
+  if (typeof size !== 'number') {
+    throw new TypeError('Argument must be a number')
+  }
+  return buffer.SlowBuffer(size)
+}
diff --git a/backend/node_modules/safe-buffer/package.json b/backend/node_modules/safe-buffer/package.json
new file mode 100644
index 0000000..f2869e2
--- /dev/null
+++ b/backend/node_modules/safe-buffer/package.json
@@ -0,0 +1,51 @@
+{
+  "name": "safe-buffer",
+  "description": "Safer Node.js Buffer API",
+  "version": "5.2.1",
+  "author": {
+    "name": "Feross Aboukhadijeh",
+    "email": "feross@feross.org",
+    "url": "https://feross.org"
+  },
+  "bugs": {
+    "url": "https://github.com/feross/safe-buffer/issues"
+  },
+  "devDependencies": {
+    "standard": "*",
+    "tape": "^5.0.0"
+  },
+  "homepage": "https://github.com/feross/safe-buffer",
+  "keywords": [
+    "buffer",
+    "buffer allocate",
+    "node security",
+    "safe",
+    "safe-buffer",
+    "security",
+    "uninitialized"
+  ],
+  "license": "MIT",
+  "main": "index.js",
+  "types": "index.d.ts",
+  "repository": {
+    "type": "git",
+    "url": "git://github.com/feross/safe-buffer.git"
+  },
+  "scripts": {
+    "test": "standard && tape test/*.js"
+  },
+  "funding": [
+    {
+      "type": "github",
+      "url": "https://github.com/sponsors/feross"
+    },
+    {
+      "type": "patreon",
+      "url": "https://www.patreon.com/feross"
+    },
+    {
+      "type": "consulting",
+      "url": "https://feross.org/support"
+    }
+  ]
+}
diff --git a/backend/node_modules/safer-buffer/LICENSE b/backend/node_modules/safer-buffer/LICENSE
new file mode 100644
index 0000000..4fe9e6f
--- /dev/null
+++ b/backend/node_modules/safer-buffer/LICENSE
@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2018 Nikita Skovoroda <chalkerx@gmail.com>
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
diff --git a/backend/node_modules/safer-buffer/Porting-Buffer.md b/backend/node_modules/safer-buffer/Porting-Buffer.md
new file mode 100644
index 0000000..68d86ba
--- /dev/null
+++ b/backend/node_modules/safer-buffer/Porting-Buffer.md
@@ -0,0 +1,268 @@
+# Porting to the Buffer.from/Buffer.alloc API
+
+<a id="overview"></a>
+## Overview
+
+- [Variant 1: Drop support for Node.js ≤ 4.4.x and 5.0.0 — 5.9.x.](#variant-1) (*recommended*)
+- [Variant 2: Use a polyfill](#variant-2)
+- [Variant 3: manual detection, with safeguards](#variant-3)
+
+### Finding problematic bits of code using grep
+
+Just run `grep -nrE '[^a-zA-Z](Slow)?Buffer\s*\(' --exclude-dir node_modules`.
+
+It will find all the potentially unsafe places in your own code (with some considerably unlikely
+exceptions).
+
+### Finding problematic bits of code using Node.js 8
+
+If you’re using Node.js ≥ 8.0.0 (which is recommended), Node.js exposes multiple options that help with finding the relevant pieces of code:
+
+- `--trace-warnings` will make Node.js show a stack trace for this warning and other warnings that are printed by Node.js.
+- `--trace-deprecation` does the same thing, but only for deprecation warnings.
+- `--pending-deprecation` will show more types of deprecation warnings. In particular, it will show the `Buffer()` deprecation warning, even on Node.js 8.
+
+You can set these flags using an environment variable:
+
+```console
+$ export NODE_OPTIONS='--trace-warnings --pending-deprecation'
+$ cat example.js
+'use strict';
+const foo = new Buffer('foo');
+$ node example.js
+(node:7147) [DEP0005] DeprecationWarning: The Buffer() and new Buffer() constructors are not recommended for use due to security and usability concerns. Please use the new Buffer.alloc(), Buffer.allocUnsafe(), or Buffer.from() construction methods instead.
+    at showFlaggedDeprecation (buffer.js:127:13)
+    at new Buffer (buffer.js:148:3)
+    at Object.<anonymous> (/path/to/example.js:2:13)
+    [... more stack trace lines ...]
+```
+
+### Finding problematic bits of code using linters
+
+Eslint rules [no-buffer-constructor](https://eslint.org/docs/rules/no-buffer-constructor)
+or
+[node/no-deprecated-api](https://github.com/mysticatea/eslint-plugin-node/blob/master/docs/rules/no-deprecated-api.md)
+also find calls to deprecated `Buffer()` API. Those rules are included in some pre-sets.
+
+There is a drawback, though, that it doesn't always
+[work correctly](https://github.com/chalker/safer-buffer#why-not-safe-buffer) when `Buffer` is
+overriden e.g. with a polyfill, so recommended is a combination of this and some other method
+described above.
+
+<a id="variant-1"></a>
+## Variant 1: Drop support for Node.js ≤ 4.4.x and 5.0.0 — 5.9.x.
+
+This is the recommended solution nowadays that would imply only minimal overhead.
+
+The Node.js 5.x release line has been unsupported since July 2016, and the Node.js 4.x release line reaches its End of Life in April 2018 (→ [Schedule](https://github.com/nodejs/Release#release-schedule)). This means that these versions of Node.js will *not* receive any updates, even in case of security issues, so using these release lines should be avoided, if at all possible.
+
+What you would do in this case is to convert all `new Buffer()` or `Buffer()` calls to use `Buffer.alloc()` or `Buffer.from()`, in the following way:
+
+- For `new Buffer(number)`, replace it with `Buffer.alloc(number)`.
+- For `new Buffer(string)` (or `new Buffer(string, encoding)`), replace it with `Buffer.from(string)` (or `Buffer.from(string, encoding)`).
+- For all other combinations of arguments (these are much rarer), also replace `new Buffer(...arguments)` with `Buffer.from(...arguments)`.
+
+Note that `Buffer.alloc()` is also _faster_ on the current Node.js versions than
+`new Buffer(size).fill(0)`, which is what you would otherwise need to ensure zero-filling.
+
+Enabling eslint rule [no-buffer-constructor](https://eslint.org/docs/rules/no-buffer-constructor)
+or
+[node/no-deprecated-api](https://github.com/mysticatea/eslint-plugin-node/blob/master/docs/rules/no-deprecated-api.md)
+is recommended to avoid accidential unsafe Buffer API usage.
+
+There is also a [JSCodeshift codemod](https://github.com/joyeecheung/node-dep-codemod#dep005)
+for automatically migrating Buffer constructors to `Buffer.alloc()` or `Buffer.from()`.
+Note that it currently only works with cases where the arguments are literals or where the
+constructor is invoked with two arguments.
+
+_If you currently support those older Node.js versions and dropping them would be a semver-major change
+for you, or if you support older branches of your packages, consider using [Variant 2](#variant-2)
+or [Variant 3](#variant-3) on older branches, so people using those older branches will also receive
+the fix. That way, you will eradicate potential issues caused by unguarded Buffer API usage and
+your users will not observe a runtime deprecation warning when running your code on Node.js 10._
+
+<a id="variant-2"></a>
+## Variant 2: Use a polyfill
+
+Utilize [safer-buffer](https://www.npmjs.com/package/safer-buffer) as a polyfill to support older
+Node.js versions.
+
+You would take exacly the same steps as in [Variant 1](#variant-1), but with a polyfill
+`const Buffer = require('safer-buffer').Buffer` in all files where you use the new `Buffer` api.
+
+Make sure that you do not use old `new Buffer` API — in any files where the line above is added,
+using old `new Buffer()` API will _throw_. It will be easy to notice that in CI, though.
+
+Alternatively, you could use [buffer-from](https://www.npmjs.com/package/buffer-from) and/or
+[buffer-alloc](https://www.npmjs.com/package/buffer-alloc) [ponyfills](https://ponyfill.com/) —
+those are great, the only downsides being 4 deps in the tree and slightly more code changes to
+migrate off them (as you would be using e.g. `Buffer.from` under a different name). If you need only
+`Buffer.from` polyfilled — `buffer-from` alone which comes with no extra dependencies.
+
+_Alternatively, you could use [safe-buffer](https://www.npmjs.com/package/safe-buffer) — it also
+provides a polyfill, but takes a different approach which has
+[it's drawbacks](https://github.com/chalker/safer-buffer#why-not-safe-buffer). It will allow you
+to also use the older `new Buffer()` API in your code, though — but that's arguably a benefit, as
+it is problematic, can cause issues in your code, and will start emitting runtime deprecation
+warnings starting with Node.js 10._
+
+Note that in either case, it is important that you also remove all calls to the old Buffer
+API manually — just throwing in `safe-buffer` doesn't fix the problem by itself, it just provides
+a polyfill for the new API. I have seen people doing that mistake.
+
+Enabling eslint rule [no-buffer-constructor](https://eslint.org/docs/rules/no-buffer-constructor)
+or
+[node/no-deprecated-api](https://github.com/mysticatea/eslint-plugin-node/blob/master/docs/rules/no-deprecated-api.md)
+is recommended.
+
+_Don't forget to drop the polyfill usage once you drop support for Node.js < 4.5.0._
+
+<a id="variant-3"></a>
+## Variant 3 — manual detection, with safeguards
+
+This is useful if you create Buffer instances in only a few places (e.g. one), or you have your own
+wrapper around them.
+
+### Buffer(0)
+
+This special case for creating empty buffers can be safely replaced with `Buffer.concat([])`, which
+returns the same result all the way down to Node.js 0.8.x.
+
+### Buffer(notNumber)
+
+Before:
+
+```js
+var buf = new Buffer(notNumber, encoding);
+```
+
+After:
+
+```js
+var buf;
+if (Buffer.from && Buffer.from !== Uint8Array.from) {
+  buf = Buffer.from(notNumber, encoding);
+} else {
+  if (typeof notNumber === 'number')
+    throw new Error('The "size" argument must be of type number.');
+  buf = new Buffer(notNumber, encoding);
+}
+```
+
+`encoding` is optional.
+
+Note that the `typeof notNumber` before `new Buffer` is required (for cases when `notNumber` argument is not
+hard-coded) and _is not caused by the deprecation of Buffer constructor_ — it's exactly _why_ the
+Buffer constructor is deprecated. Ecosystem packages lacking this type-check caused numereous
+security issues — situations when unsanitized user input could end up in the `Buffer(arg)` create
+problems ranging from DoS to leaking sensitive information to the attacker from the process memory.
+
+When `notNumber` argument is hardcoded (e.g. literal `"abc"` or `[0,1,2]`), the `typeof` check can
+be omitted.
+
+Also note that using TypeScript does not fix this problem for you — when libs written in
+`TypeScript` are used from JS, or when user input ends up there — it behaves exactly as pure JS, as
+all type checks are translation-time only and are not present in the actual JS code which TS
+compiles to.
+
+### Buffer(number)
+
+For Node.js 0.10.x (and below) support:
+
+```js
+var buf;
+if (Buffer.alloc) {
+  buf = Buffer.alloc(number);
+} else {
+  buf = new Buffer(number);
+  buf.fill(0);
+}
+```
+
+Otherwise (Node.js ≥ 0.12.x):
+
+```js
+const buf = Buffer.alloc ? Buffer.alloc(number) : new Buffer(number).fill(0);
+```
+
+## Regarding Buffer.allocUnsafe
+
+Be extra cautious when using `Buffer.allocUnsafe`:
+ * Don't use it if you don't have a good reason to
+   * e.g. you probably won't ever see a performance difference for small buffers, in fact, those
+     might be even faster with `Buffer.alloc()`,
+   * if your code is not in the hot code path — you also probably won't notice a difference,
+   * keep in mind that zero-filling minimizes the potential risks.
+ * If you use it, make sure that you never return the buffer in a partially-filled state,
+   * if you are writing to it sequentially — always truncate it to the actuall written length
+
+Errors in handling buffers allocated with `Buffer.allocUnsafe` could result in various issues,
+ranged from undefined behaviour of your code to sensitive data (user input, passwords, certs)
+leaking to the remote attacker.
+
+_Note that the same applies to `new Buffer` usage without zero-filling, depending on the Node.js
+version (and lacking type checks also adds DoS to the list of potential problems)._
+
+<a id="faq"></a>
+## FAQ
+
+<a id="design-flaws"></a>
+### What is wrong with the `Buffer` constructor?
+
+The `Buffer` constructor could be used to create a buffer in many different ways:
+
+- `new Buffer(42)` creates a `Buffer` of 42 bytes. Before Node.js 8, this buffer contained
+  *arbitrary memory* for performance reasons, which could include anything ranging from
+  program source code to passwords and encryption keys.
+- `new Buffer('abc')` creates a `Buffer` that contains the UTF-8-encoded version of
+  the string `'abc'`. A second argument could specify another encoding: For example,
+  `new Buffer(string, 'base64')` could be used to convert a Base64 string into the original
+  sequence of bytes that it represents.
+- There are several other combinations of arguments.
+
+This meant that, in code like `var buffer = new Buffer(foo);`, *it is not possible to tell
+what exactly the contents of the generated buffer are* without knowing the type of `foo`.
+
+Sometimes, the value of `foo` comes from an external source. For example, this function
+could be exposed as a service on a web server, converting a UTF-8 string into its Base64 form:
+
+```
+function stringToBase64(req, res) {
+  // The request body should have the format of `{ string: 'foobar' }`
+  const rawBytes = new Buffer(req.body.string)
+  const encoded = rawBytes.toString('base64')
+  res.end({ encoded: encoded })
+}
+```
+
+Note that this code does *not* validate the type of `req.body.string`:
+
+- `req.body.string` is expected to be a string. If this is the case, all goes well.
+- `req.body.string` is controlled by the client that sends the request.
+- If `req.body.string` is the *number* `50`, the `rawBytes` would be 50 bytes:
+  - Before Node.js 8, the content would be uninitialized
+  - After Node.js 8, the content would be `50` bytes with the value `0`
+
+Because of the missing type check, an attacker could intentionally send a number
+as part of the request. Using this, they can either:
+
+- Read uninitialized memory. This **will** leak passwords, encryption keys and other
+  kinds of sensitive information. (Information leak)
+- Force the program to allocate a large amount of memory. For example, when specifying
+  `500000000` as the input value, each request will allocate 500MB of memory.
+  This can be used to either exhaust the memory available of a program completely
+  and make it crash, or slow it down significantly. (Denial of Service)
+
+Both of these scenarios are considered serious security issues in a real-world
+web server context.
+
+when using `Buffer.from(req.body.string)` instead, passing a number will always
+throw an exception instead, giving a controlled behaviour that can always be
+handled by the program.
+
+<a id="ecosystem-usage"></a>
+### The `Buffer()` constructor has been deprecated for a while. Is this really an issue?
+
+Surveys of code in the `npm` ecosystem have shown that the `Buffer()` constructor is still
+widely used. This includes new code, and overall usage of such code has actually been
+*increasing*.
diff --git a/backend/node_modules/safer-buffer/Readme.md b/backend/node_modules/safer-buffer/Readme.md
new file mode 100644
index 0000000..14b0822
--- /dev/null
+++ b/backend/node_modules/safer-buffer/Readme.md
@@ -0,0 +1,156 @@
+# safer-buffer [![travis][travis-image]][travis-url] [![npm][npm-image]][npm-url] [![javascript style guide][standard-image]][standard-url] [![Security Responsible Disclosure][secuirty-image]][secuirty-url]
+
+[travis-image]: https://travis-ci.org/ChALkeR/safer-buffer.svg?branch=master
+[travis-url]: https://travis-ci.org/ChALkeR/safer-buffer
+[npm-image]: https://img.shields.io/npm/v/safer-buffer.svg
+[npm-url]: https://npmjs.org/package/safer-buffer
+[standard-image]: https://img.shields.io/badge/code_style-standard-brightgreen.svg
+[standard-url]: https://standardjs.com
+[secuirty-image]: https://img.shields.io/badge/Security-Responsible%20Disclosure-green.svg
+[secuirty-url]: https://github.com/nodejs/security-wg/blob/master/processes/responsible_disclosure_template.md
+
+Modern Buffer API polyfill without footguns, working on Node.js from 0.8 to current.
+
+## How to use?
+
+First, port all `Buffer()` and `new Buffer()` calls to `Buffer.alloc()` and `Buffer.from()` API.
+
+Then, to achieve compatibility with outdated Node.js versions (`<4.5.0` and 5.x `<5.9.0`), use
+`const Buffer = require('safer-buffer').Buffer` in all files where you make calls to the new
+Buffer API. _Use `var` instead of `const` if you need that for your Node.js version range support._
+
+Also, see the
+[porting Buffer](https://github.com/ChALkeR/safer-buffer/blob/master/Porting-Buffer.md) guide.
+
+## Do I need it?
+
+Hopefully, not — dropping support for outdated Node.js versions should be fine nowdays, and that
+is the recommended path forward. You _do_ need to port to the `Buffer.alloc()` and `Buffer.from()`
+though.
+
+See the [porting guide](https://github.com/ChALkeR/safer-buffer/blob/master/Porting-Buffer.md)
+for a better description.
+
+## Why not [safe-buffer](https://npmjs.com/safe-buffer)?
+
+_In short: while `safe-buffer` serves as a polyfill for the new API, it allows old API usage and
+itself contains footguns._
+
+`safe-buffer` could be used safely to get the new API while still keeping support for older
+Node.js versions (like this module), but while analyzing ecosystem usage of the old Buffer API
+I found out that `safe-buffer` is itself causing problems in some cases.
+
+For example, consider the following snippet:
+
+```console
+$ cat example.unsafe.js
+console.log(Buffer(20))
+$ ./node-v6.13.0-linux-x64/bin/node example.unsafe.js
+<Buffer 0a 00 00 00 00 00 00 00 28 13 de 02 00 00 00 00 05 00 00 00>
+$ standard example.unsafe.js
+standard: Use JavaScript Standard Style (https://standardjs.com)
+  /home/chalker/repo/safer-buffer/example.unsafe.js:2:13: 'Buffer()' was deprecated since v6. Use 'Buffer.alloc()' or 'Buffer.from()' (use 'https://www.npmjs.com/package/safe-buffer' for '<4.5.0') instead.
+```
+
+This is allocates and writes to console an uninitialized chunk of memory.
+[standard](https://www.npmjs.com/package/standard) linter (among others) catch that and warn people
+to avoid using unsafe API.
+
+Let's now throw in `safe-buffer`!
+
+```console
+$ cat example.safe-buffer.js
+const Buffer = require('safe-buffer').Buffer
+console.log(Buffer(20))
+$ standard example.safe-buffer.js
+$ ./node-v6.13.0-linux-x64/bin/node example.safe-buffer.js
+<Buffer 08 00 00 00 00 00 00 00 28 58 01 82 fe 7f 00 00 00 00 00 00>
+```
+
+See the problem? Adding in `safe-buffer` _magically removes the lint warning_, but the behavior
+remains identiсal to what we had before, and when launched on Node.js 6.x LTS — this dumps out
+chunks of uninitialized memory.
+_And this code will still emit runtime warnings on Node.js 10.x and above._
+
+That was done by design. I first considered changing `safe-buffer`, prohibiting old API usage or
+emitting warnings on it, but that significantly diverges from `safe-buffer` design. After some
+discussion, it was decided to move my approach into a separate package, and _this is that separate
+package_.
+
+This footgun is not imaginary — I observed top-downloaded packages doing that kind of thing,
+«fixing» the lint warning by blindly including `safe-buffer` without any actual changes.
+
+Also in some cases, even if the API _was_ migrated to use of safe Buffer API — a random pull request
+can bring unsafe Buffer API usage back to the codebase by adding new calls — and that could go
+unnoticed even if you have a linter prohibiting that (becase of the reason stated above), and even
+pass CI. _I also observed that being done in popular packages._
+
+Some examples:
+ * [webdriverio](https://github.com/webdriverio/webdriverio/commit/05cbd3167c12e4930f09ef7cf93b127ba4effae4#diff-124380949022817b90b622871837d56cR31)
+   (a module with 548 759 downloads/month),
+ * [websocket-stream](https://github.com/maxogden/websocket-stream/commit/c9312bd24d08271687d76da0fe3c83493871cf61)
+   (218 288 d/m, fix in [maxogden/websocket-stream#142](https://github.com/maxogden/websocket-stream/pull/142)),
+ * [node-serialport](https://github.com/node-serialport/node-serialport/commit/e8d9d2b16c664224920ce1c895199b1ce2def48c)
+   (113 138 d/m, fix in [node-serialport/node-serialport#1510](https://github.com/node-serialport/node-serialport/pull/1510)),
+ * [karma](https://github.com/karma-runner/karma/commit/3d94b8cf18c695104ca195334dc75ff054c74eec)
+   (3 973 193 d/m, fix in [karma-runner/karma#2947](https://github.com/karma-runner/karma/pull/2947)),
+ * [spdy-transport](https://github.com/spdy-http2/spdy-transport/commit/5375ac33f4a62a4f65bcfc2827447d42a5dbe8b1)
+   (5 970 727 d/m, fix in [spdy-http2/spdy-transport#53](https://github.com/spdy-http2/spdy-transport/pull/53)).
+ * And there are a lot more over the ecosystem.
+
+I filed a PR at
+[mysticatea/eslint-plugin-node#110](https://github.com/mysticatea/eslint-plugin-node/pull/110) to
+partially fix that (for cases when that lint rule is used), but it is a semver-major change for
+linter rules and presets, so it would take significant time for that to reach actual setups.
+_It also hasn't been released yet (2018-03-20)._
+
+Also, `safer-buffer` discourages the usage of `.allocUnsafe()`, which is often done by a mistake.
+It still supports it with an explicit concern barier, by placing it under
+`require('safer-buffer/dangereous')`.
+
+## But isn't throwing bad?
+
+Not really. It's an error that could be noticed and fixed early, instead of causing havoc later like
+unguarded `new Buffer()` calls that end up receiving user input can do.
+
+This package affects only the files where `var Buffer = require('safer-buffer').Buffer` was done, so
+it is really simple to keep track of things and make sure that you don't mix old API usage with that.
+Also, CI should hint anything that you might have missed.
+
+New commits, if tested, won't land new usage of unsafe Buffer API this way.
+_Node.js 10.x also deals with that by printing a runtime depecation warning._
+
+### Would it affect third-party modules?
+
+No, unless you explicitly do an awful thing like monkey-patching or overriding the built-in `Buffer`.
+Don't do that.
+
+### But I don't want throwing…
+
+That is also fine!
+
+Also, it could be better in some cases when you don't comprehensive enough test coverage.
+
+In that case — just don't override `Buffer` and use
+`var SaferBuffer = require('safer-buffer').Buffer` instead.
+
+That way, everything using `Buffer` natively would still work, but there would be two drawbacks:
+
+* `Buffer.from`/`Buffer.alloc` won't be polyfilled — use `SaferBuffer.from` and
+  `SaferBuffer.alloc` instead.
+* You are still open to accidentally using the insecure deprecated API — use a linter to catch that.
+
+Note that using a linter to catch accidential `Buffer` constructor usage in this case is strongly
+recommended. `Buffer` is not overriden in this usecase, so linters won't get confused.
+
+## «Without footguns»?
+
+Well, it is still possible to do _some_ things with `Buffer` API, e.g. accessing `.buffer` property
+on older versions and duping things from there. You shouldn't do that in your code, probabably.
+
+The intention is to remove the most significant footguns that affect lots of packages in the
+ecosystem, and to do it in the proper way.
+
+Also, this package doesn't protect against security issues affecting some Node.js versions, so for
+usage in your own production code, it is still recommended to update to a Node.js version
+[supported by upstream](https://github.com/nodejs/release#release-schedule).
diff --git a/backend/node_modules/safer-buffer/dangerous.js b/backend/node_modules/safer-buffer/dangerous.js
new file mode 100644
index 0000000..ca41fdc
--- /dev/null
+++ b/backend/node_modules/safer-buffer/dangerous.js
@@ -0,0 +1,58 @@
+/* eslint-disable node/no-deprecated-api */
+
+'use strict'
+
+var buffer = require('buffer')
+var Buffer = buffer.Buffer
+var safer = require('./safer.js')
+var Safer = safer.Buffer
+
+var dangerous = {}
+
+var key
+
+for (key in safer) {
+  if (!safer.hasOwnProperty(key)) continue
+  dangerous[key] = safer[key]
+}
+
+var Dangereous = dangerous.Buffer = {}
+
+// Copy Safer API
+for (key in Safer) {
+  if (!Safer.hasOwnProperty(key)) continue
+  Dangereous[key] = Safer[key]
+}
+
+// Copy those missing unsafe methods, if they are present
+for (key in Buffer) {
+  if (!Buffer.hasOwnProperty(key)) continue
+  if (Dangereous.hasOwnProperty(key)) continue
+  Dangereous[key] = Buffer[key]
+}
+
+if (!Dangereous.allocUnsafe) {
+  Dangereous.allocUnsafe = function (size) {
+    if (typeof size !== 'number') {
+      throw new TypeError('The "size" argument must be of type number. Received type ' + typeof size)
+    }
+    if (size < 0 || size >= 2 * (1 << 30)) {
+      throw new RangeError('The value "' + size + '" is invalid for option "size"')
+    }
+    return Buffer(size)
+  }
+}
+
+if (!Dangereous.allocUnsafeSlow) {
+  Dangereous.allocUnsafeSlow = function (size) {
+    if (typeof size !== 'number') {
+      throw new TypeError('The "size" argument must be of type number. Received type ' + typeof size)
+    }
+    if (size < 0 || size >= 2 * (1 << 30)) {
+      throw new RangeError('The value "' + size + '" is invalid for option "size"')
+    }
+    return buffer.SlowBuffer(size)
+  }
+}
+
+module.exports = dangerous
diff --git a/backend/node_modules/safer-buffer/package.json b/backend/node_modules/safer-buffer/package.json
new file mode 100644
index 0000000..d452b04
--- /dev/null
+++ b/backend/node_modules/safer-buffer/package.json
@@ -0,0 +1,34 @@
+{
+  "name": "safer-buffer",
+  "version": "2.1.2",
+  "description": "Modern Buffer API polyfill without footguns",
+  "main": "safer.js",
+  "scripts": {
+    "browserify-test": "browserify --external tape tests.js > browserify-tests.js && tape browserify-tests.js",
+    "test": "standard && tape tests.js"
+  },
+  "author": {
+    "name": "Nikita Skovoroda",
+    "email": "chalkerx@gmail.com",
+    "url": "https://github.com/ChALkeR"
+  },
+  "license": "MIT",
+  "repository": {
+    "type": "git",
+    "url": "git+https://github.com/ChALkeR/safer-buffer.git"
+  },
+  "bugs": {
+    "url": "https://github.com/ChALkeR/safer-buffer/issues"
+  },
+  "devDependencies": {
+    "standard": "^11.0.1",
+    "tape": "^4.9.0"
+  },
+  "files": [
+    "Porting-Buffer.md",
+    "Readme.md",
+    "tests.js",
+    "dangerous.js",
+    "safer.js"
+  ]
+}
diff --git a/backend/node_modules/safer-buffer/safer.js b/backend/node_modules/safer-buffer/safer.js
new file mode 100644
index 0000000..37c7e1a
--- /dev/null
+++ b/backend/node_modules/safer-buffer/safer.js
@@ -0,0 +1,77 @@
+/* eslint-disable node/no-deprecated-api */
+
+'use strict'
+
+var buffer = require('buffer')
+var Buffer = buffer.Buffer
+
+var safer = {}
+
+var key
+
+for (key in buffer) {
+  if (!buffer.hasOwnProperty(key)) continue
+  if (key === 'SlowBuffer' || key === 'Buffer') continue
+  safer[key] = buffer[key]
+}
+
+var Safer = safer.Buffer = {}
+for (key in Buffer) {
+  if (!Buffer.hasOwnProperty(key)) continue
+  if (key === 'allocUnsafe' || key === 'allocUnsafeSlow') continue
+  Safer[key] = Buffer[key]
+}
+
+safer.Buffer.prototype = Buffer.prototype
+
+if (!Safer.from || Safer.from === Uint8Array.from) {
+  Safer.from = function (value, encodingOrOffset, length) {
+    if (typeof value === 'number') {
+      throw new TypeError('The "value" argument must not be of type number. Received type ' + typeof value)
+    }
+    if (value && typeof value.length === 'undefined') {
+      throw new TypeError('The first argument must be one of type string, Buffer, ArrayBuffer, Array, or Array-like Object. Received type ' + typeof value)
+    }
+    return Buffer(value, encodingOrOffset, length)
+  }
+}
+
+if (!Safer.alloc) {
+  Safer.alloc = function (size, fill, encoding) {
+    if (typeof size !== 'number') {
+      throw new TypeError('The "size" argument must be of type number. Received type ' + typeof size)
+    }
+    if (size < 0 || size >= 2 * (1 << 30)) {
+      throw new RangeError('The value "' + size + '" is invalid for option "size"')
+    }
+    var buf = Buffer(size)
+    if (!fill || fill.length === 0) {
+      buf.fill(0)
+    } else if (typeof encoding === 'string') {
+      buf.fill(fill, encoding)
+    } else {
+      buf.fill(fill)
+    }
+    return buf
+  }
+}
+
+if (!safer.kStringMaxLength) {
+  try {
+    safer.kStringMaxLength = process.binding('buffer').kStringMaxLength
+  } catch (e) {
+    // we can't determine kStringMaxLength in environments where process.binding
+    // is unsupported, so let's not set it
+  }
+}
+
+if (!safer.constants) {
+  safer.constants = {
+    MAX_LENGTH: safer.kMaxLength
+  }
+  if (safer.kStringMaxLength) {
+    safer.constants.MAX_STRING_LENGTH = safer.kStringMaxLength
+  }
+}
+
+module.exports = safer
diff --git a/backend/node_modules/safer-buffer/tests.js b/backend/node_modules/safer-buffer/tests.js
new file mode 100644
index 0000000..7ed2777
--- /dev/null
+++ b/backend/node_modules/safer-buffer/tests.js
@@ -0,0 +1,406 @@
+/* eslint-disable node/no-deprecated-api */
+
+'use strict'
+
+var test = require('tape')
+
+var buffer = require('buffer')
+
+var index = require('./')
+var safer = require('./safer')
+var dangerous = require('./dangerous')
+
+/* Inheritance tests */
+
+test('Default is Safer', function (t) {
+  t.equal(index, safer)
+  t.notEqual(safer, dangerous)
+  t.notEqual(index, dangerous)
+  t.end()
+})
+
+test('Is not a function', function (t) {
+  [index, safer, dangerous].forEach(function (impl) {
+    t.equal(typeof impl, 'object')
+    t.equal(typeof impl.Buffer, 'object')
+  });
+  [buffer].forEach(function (impl) {
+    t.equal(typeof impl, 'object')
+    t.equal(typeof impl.Buffer, 'function')
+  })
+  t.end()
+})
+
+test('Constructor throws', function (t) {
+  [index, safer, dangerous].forEach(function (impl) {
+    t.throws(function () { impl.Buffer() })
+    t.throws(function () { impl.Buffer(0) })
+    t.throws(function () { impl.Buffer('a') })
+    t.throws(function () { impl.Buffer('a', 'utf-8') })
+    t.throws(function () { return new impl.Buffer() })
+    t.throws(function () { return new impl.Buffer(0) })
+    t.throws(function () { return new impl.Buffer('a') })
+    t.throws(function () { return new impl.Buffer('a', 'utf-8') })
+  })
+  t.end()
+})
+
+test('Safe methods exist', function (t) {
+  [index, safer, dangerous].forEach(function (impl) {
+    t.equal(typeof impl.Buffer.alloc, 'function', 'alloc')
+    t.equal(typeof impl.Buffer.from, 'function', 'from')
+  })
+  t.end()
+})
+
+test('Unsafe methods exist only in Dangerous', function (t) {
+  [index, safer].forEach(function (impl) {
+    t.equal(typeof impl.Buffer.allocUnsafe, 'undefined')
+    t.equal(typeof impl.Buffer.allocUnsafeSlow, 'undefined')
+  });
+  [dangerous].forEach(function (impl) {
+    t.equal(typeof impl.Buffer.allocUnsafe, 'function')
+    t.equal(typeof impl.Buffer.allocUnsafeSlow, 'function')
+  })
+  t.end()
+})
+
+test('Generic methods/properties are defined and equal', function (t) {
+  ['poolSize', 'isBuffer', 'concat', 'byteLength'].forEach(function (method) {
+    [index, safer, dangerous].forEach(function (impl) {
+      t.equal(impl.Buffer[method], buffer.Buffer[method], method)
+      t.notEqual(typeof impl.Buffer[method], 'undefined', method)
+    })
+  })
+  t.end()
+})
+
+test('Built-in buffer static methods/properties are inherited', function (t) {
+  Object.keys(buffer).forEach(function (method) {
+    if (method === 'SlowBuffer' || method === 'Buffer') return;
+    [index, safer, dangerous].forEach(function (impl) {
+      t.equal(impl[method], buffer[method], method)
+      t.notEqual(typeof impl[method], 'undefined', method)
+    })
+  })
+  t.end()
+})
+
+test('Built-in Buffer static methods/properties are inherited', function (t) {
+  Object.keys(buffer.Buffer).forEach(function (method) {
+    if (method === 'allocUnsafe' || method === 'allocUnsafeSlow') return;
+    [index, safer, dangerous].forEach(function (impl) {
+      t.equal(impl.Buffer[method], buffer.Buffer[method], method)
+      t.notEqual(typeof impl.Buffer[method], 'undefined', method)
+    })
+  })
+  t.end()
+})
+
+test('.prototype property of Buffer is inherited', function (t) {
+  [index, safer, dangerous].forEach(function (impl) {
+    t.equal(impl.Buffer.prototype, buffer.Buffer.prototype, 'prototype')
+    t.notEqual(typeof impl.Buffer.prototype, 'undefined', 'prototype')
+  })
+  t.end()
+})
+
+test('All Safer methods are present in Dangerous', function (t) {
+  Object.keys(safer).forEach(function (method) {
+    if (method === 'Buffer') return;
+    [index, safer, dangerous].forEach(function (impl) {
+      t.equal(impl[method], safer[method], method)
+      if (method !== 'kStringMaxLength') {
+        t.notEqual(typeof impl[method], 'undefined', method)
+      }
+    })
+  })
+  Object.keys(safer.Buffer).forEach(function (method) {
+    [index, safer, dangerous].forEach(function (impl) {
+      t.equal(impl.Buffer[method], safer.Buffer[method], method)
+      t.notEqual(typeof impl.Buffer[method], 'undefined', method)
+    })
+  })
+  t.end()
+})
+
+test('Safe methods from Dangerous methods are present in Safer', function (t) {
+  Object.keys(dangerous).forEach(function (method) {
+    if (method === 'Buffer') return;
+    [index, safer, dangerous].forEach(function (impl) {
+      t.equal(impl[method], dangerous[method], method)
+      if (method !== 'kStringMaxLength') {
+        t.notEqual(typeof impl[method], 'undefined', method)
+      }
+    })
+  })
+  Object.keys(dangerous.Buffer).forEach(function (method) {
+    if (method === 'allocUnsafe' || method === 'allocUnsafeSlow') return;
+    [index, safer, dangerous].forEach(function (impl) {
+      t.equal(impl.Buffer[method], dangerous.Buffer[method], method)
+      t.notEqual(typeof impl.Buffer[method], 'undefined', method)
+    })
+  })
+  t.end()
+})
+
+/* Behaviour tests */
+
+test('Methods return Buffers', function (t) {
+  [index, safer, dangerous].forEach(function (impl) {
+    t.ok(buffer.Buffer.isBuffer(impl.Buffer.alloc(0)))
+    t.ok(buffer.Buffer.isBuffer(impl.Buffer.alloc(0, 10)))
+    t.ok(buffer.Buffer.isBuffer(impl.Buffer.alloc(0, 'a')))
+    t.ok(buffer.Buffer.isBuffer(impl.Buffer.alloc(10)))
+    t.ok(buffer.Buffer.isBuffer(impl.Buffer.alloc(10, 'x')))
+    t.ok(buffer.Buffer.isBuffer(impl.Buffer.alloc(9, 'ab')))
+    t.ok(buffer.Buffer.isBuffer(impl.Buffer.from('')))
+    t.ok(buffer.Buffer.isBuffer(impl.Buffer.from('string')))
+    t.ok(buffer.Buffer.isBuffer(impl.Buffer.from('string', 'utf-8')))
+    t.ok(buffer.Buffer.isBuffer(impl.Buffer.from('b25ldHdvdGhyZWU=', 'base64')))
+    t.ok(buffer.Buffer.isBuffer(impl.Buffer.from([0, 42, 3])))
+    t.ok(buffer.Buffer.isBuffer(impl.Buffer.from(new Uint8Array([0, 42, 3]))))
+    t.ok(buffer.Buffer.isBuffer(impl.Buffer.from([])))
+  });
+  ['allocUnsafe', 'allocUnsafeSlow'].forEach(function (method) {
+    t.ok(buffer.Buffer.isBuffer(dangerous.Buffer[method](0)))
+    t.ok(buffer.Buffer.isBuffer(dangerous.Buffer[method](10)))
+  })
+  t.end()
+})
+
+test('Constructor is buffer.Buffer', function (t) {
+  [index, safer, dangerous].forEach(function (impl) {
+    t.equal(impl.Buffer.alloc(0).constructor, buffer.Buffer)
+    t.equal(impl.Buffer.alloc(0, 10).constructor, buffer.Buffer)
+    t.equal(impl.Buffer.alloc(0, 'a').constructor, buffer.Buffer)
+    t.equal(impl.Buffer.alloc(10).constructor, buffer.Buffer)
+    t.equal(impl.Buffer.alloc(10, 'x').constructor, buffer.Buffer)
+    t.equal(impl.Buffer.alloc(9, 'ab').constructor, buffer.Buffer)
+    t.equal(impl.Buffer.from('').constructor, buffer.Buffer)
+    t.equal(impl.Buffer.from('string').constructor, buffer.Buffer)
+    t.equal(impl.Buffer.from('string', 'utf-8').constructor, buffer.Buffer)
+    t.equal(impl.Buffer.from('b25ldHdvdGhyZWU=', 'base64').constructor, buffer.Buffer)
+    t.equal(impl.Buffer.from([0, 42, 3]).constructor, buffer.Buffer)
+    t.equal(impl.Buffer.from(new Uint8Array([0, 42, 3])).constructor, buffer.Buffer)
+    t.equal(impl.Buffer.from([]).constructor, buffer.Buffer)
+  });
+  [0, 10, 100].forEach(function (arg) {
+    t.equal(dangerous.Buffer.allocUnsafe(arg).constructor, buffer.Buffer)
+    t.equal(dangerous.Buffer.allocUnsafeSlow(arg).constructor, buffer.SlowBuffer(0).constructor)
+  })
+  t.end()
+})
+
+test('Invalid calls throw', function (t) {
+  [index, safer, dangerous].forEach(function (impl) {
+    t.throws(function () { impl.Buffer.from(0) })
+    t.throws(function () { impl.Buffer.from(10) })
+    t.throws(function () { impl.Buffer.from(10, 'utf-8') })
+    t.throws(function () { impl.Buffer.from('string', 'invalid encoding') })
+    t.throws(function () { impl.Buffer.from(-10) })
+    t.throws(function () { impl.Buffer.from(1e90) })
+    t.throws(function () { impl.Buffer.from(Infinity) })
+    t.throws(function () { impl.Buffer.from(-Infinity) })
+    t.throws(function () { impl.Buffer.from(NaN) })
+    t.throws(function () { impl.Buffer.from(null) })
+    t.throws(function () { impl.Buffer.from(undefined) })
+    t.throws(function () { impl.Buffer.from() })
+    t.throws(function () { impl.Buffer.from({}) })
+    t.throws(function () { impl.Buffer.alloc('') })
+    t.throws(function () { impl.Buffer.alloc('string') })
+    t.throws(function () { impl.Buffer.alloc('string', 'utf-8') })
+    t.throws(function () { impl.Buffer.alloc('b25ldHdvdGhyZWU=', 'base64') })
+    t.throws(function () { impl.Buffer.alloc(-10) })
+    t.throws(function () { impl.Buffer.alloc(1e90) })
+    t.throws(function () { impl.Buffer.alloc(2 * (1 << 30)) })
+    t.throws(function () { impl.Buffer.alloc(Infinity) })
+    t.throws(function () { impl.Buffer.alloc(-Infinity) })
+    t.throws(function () { impl.Buffer.alloc(null) })
+    t.throws(function () { impl.Buffer.alloc(undefined) })
+    t.throws(function () { impl.Buffer.alloc() })
+    t.throws(function () { impl.Buffer.alloc([]) })
+    t.throws(function () { impl.Buffer.alloc([0, 42, 3]) })
+    t.throws(function () { impl.Buffer.alloc({}) })
+  });
+  ['allocUnsafe', 'allocUnsafeSlow'].forEach(function (method) {
+    t.throws(function () { dangerous.Buffer[method]('') })
+    t.throws(function () { dangerous.Buffer[method]('string') })
+    t.throws(function () { dangerous.Buffer[method]('string', 'utf-8') })
+    t.throws(function () { dangerous.Buffer[method](2 * (1 << 30)) })
+    t.throws(function () { dangerous.Buffer[method](Infinity) })
+    if (dangerous.Buffer[method] === buffer.Buffer.allocUnsafe) {
+      t.skip('Skipping, older impl of allocUnsafe coerced negative sizes to 0')
+    } else {
+      t.throws(function () { dangerous.Buffer[method](-10) })
+      t.throws(function () { dangerous.Buffer[method](-1e90) })
+      t.throws(function () { dangerous.Buffer[method](-Infinity) })
+    }
+    t.throws(function () { dangerous.Buffer[method](null) })
+    t.throws(function () { dangerous.Buffer[method](undefined) })
+    t.throws(function () { dangerous.Buffer[method]() })
+    t.throws(function () { dangerous.Buffer[method]([]) })
+    t.throws(function () { dangerous.Buffer[method]([0, 42, 3]) })
+    t.throws(function () { dangerous.Buffer[method]({}) })
+  })
+  t.end()
+})
+
+test('Buffers have appropriate lengths', function (t) {
+  [index, safer, dangerous].forEach(function (impl) {
+    t.equal(impl.Buffer.alloc(0).length, 0)
+    t.equal(impl.Buffer.alloc(10).length, 10)
+    t.equal(impl.Buffer.from('').length, 0)
+    t.equal(impl.Buffer.from('string').length, 6)
+    t.equal(impl.Buffer.from('string', 'utf-8').length, 6)
+    t.equal(impl.Buffer.from('b25ldHdvdGhyZWU=', 'base64').length, 11)
+    t.equal(impl.Buffer.from([0, 42, 3]).length, 3)
+    t.equal(impl.Buffer.from(new Uint8Array([0, 42, 3])).length, 3)
+    t.equal(impl.Buffer.from([]).length, 0)
+  });
+  ['allocUnsafe', 'allocUnsafeSlow'].forEach(function (method) {
+    t.equal(dangerous.Buffer[method](0).length, 0)
+    t.equal(dangerous.Buffer[method](10).length, 10)
+  })
+  t.end()
+})
+
+test('Buffers have appropriate lengths (2)', function (t) {
+  t.equal(index.Buffer.alloc, safer.Buffer.alloc)
+  t.equal(index.Buffer.alloc, dangerous.Buffer.alloc)
+  var ok = true;
+  [ safer.Buffer.alloc,
+    dangerous.Buffer.allocUnsafe,
+    dangerous.Buffer.allocUnsafeSlow
+  ].forEach(function (method) {
+    for (var i = 0; i < 1e2; i++) {
+      var length = Math.round(Math.random() * 1e5)
+      var buf = method(length)
+      if (!buffer.Buffer.isBuffer(buf)) ok = false
+      if (buf.length !== length) ok = false
+    }
+  })
+  t.ok(ok)
+  t.end()
+})
+
+test('.alloc(size) is zero-filled and has correct length', function (t) {
+  t.equal(index.Buffer.alloc, safer.Buffer.alloc)
+  t.equal(index.Buffer.alloc, dangerous.Buffer.alloc)
+  var ok = true
+  for (var i = 0; i < 1e2; i++) {
+    var length = Math.round(Math.random() * 2e6)
+    var buf = index.Buffer.alloc(length)
+    if (!buffer.Buffer.isBuffer(buf)) ok = false
+    if (buf.length !== length) ok = false
+    var j
+    for (j = 0; j < length; j++) {
+      if (buf[j] !== 0) ok = false
+    }
+    buf.fill(1)
+    for (j = 0; j < length; j++) {
+      if (buf[j] !== 1) ok = false
+    }
+  }
+  t.ok(ok)
+  t.end()
+})
+
+test('.allocUnsafe / .allocUnsafeSlow are fillable and have correct lengths', function (t) {
+  ['allocUnsafe', 'allocUnsafeSlow'].forEach(function (method) {
+    var ok = true
+    for (var i = 0; i < 1e2; i++) {
+      var length = Math.round(Math.random() * 2e6)
+      var buf = dangerous.Buffer[method](length)
+      if (!buffer.Buffer.isBuffer(buf)) ok = false
+      if (buf.length !== length) ok = false
+      buf.fill(0, 0, length)
+      var j
+      for (j = 0; j < length; j++) {
+        if (buf[j] !== 0) ok = false
+      }
+      buf.fill(1, 0, length)
+      for (j = 0; j < length; j++) {
+        if (buf[j] !== 1) ok = false
+      }
+    }
+    t.ok(ok, method)
+  })
+  t.end()
+})
+
+test('.alloc(size, fill) is `fill`-filled', function (t) {
+  t.equal(index.Buffer.alloc, safer.Buffer.alloc)
+  t.equal(index.Buffer.alloc, dangerous.Buffer.alloc)
+  var ok = true
+  for (var i = 0; i < 1e2; i++) {
+    var length = Math.round(Math.random() * 2e6)
+    var fill = Math.round(Math.random() * 255)
+    var buf = index.Buffer.alloc(length, fill)
+    if (!buffer.Buffer.isBuffer(buf)) ok = false
+    if (buf.length !== length) ok = false
+    for (var j = 0; j < length; j++) {
+      if (buf[j] !== fill) ok = false
+    }
+  }
+  t.ok(ok)
+  t.end()
+})
+
+test('.alloc(size, fill) is `fill`-filled', function (t) {
+  t.equal(index.Buffer.alloc, safer.Buffer.alloc)
+  t.equal(index.Buffer.alloc, dangerous.Buffer.alloc)
+  var ok = true
+  for (var i = 0; i < 1e2; i++) {
+    var length = Math.round(Math.random() * 2e6)
+    var fill = Math.round(Math.random() * 255)
+    var buf = index.Buffer.alloc(length, fill)
+    if (!buffer.Buffer.isBuffer(buf)) ok = false
+    if (buf.length !== length) ok = false
+    for (var j = 0; j < length; j++) {
+      if (buf[j] !== fill) ok = false
+    }
+  }
+  t.ok(ok)
+  t.deepEqual(index.Buffer.alloc(9, 'a'), index.Buffer.alloc(9, 97))
+  t.notDeepEqual(index.Buffer.alloc(9, 'a'), index.Buffer.alloc(9, 98))
+
+  var tmp = new buffer.Buffer(2)
+  tmp.fill('ok')
+  if (tmp[1] === tmp[0]) {
+    // Outdated Node.js
+    t.deepEqual(index.Buffer.alloc(5, 'ok'), index.Buffer.from('ooooo'))
+  } else {
+    t.deepEqual(index.Buffer.alloc(5, 'ok'), index.Buffer.from('okoko'))
+  }
+  t.notDeepEqual(index.Buffer.alloc(5, 'ok'), index.Buffer.from('kokok'))
+
+  t.end()
+})
+
+test('safer.Buffer.from returns results same as Buffer constructor', function (t) {
+  [index, safer, dangerous].forEach(function (impl) {
+    t.deepEqual(impl.Buffer.from(''), new buffer.Buffer(''))
+    t.deepEqual(impl.Buffer.from('string'), new buffer.Buffer('string'))
+    t.deepEqual(impl.Buffer.from('string', 'utf-8'), new buffer.Buffer('string', 'utf-8'))
+    t.deepEqual(impl.Buffer.from('b25ldHdvdGhyZWU=', 'base64'), new buffer.Buffer('b25ldHdvdGhyZWU=', 'base64'))
+    t.deepEqual(impl.Buffer.from([0, 42, 3]), new buffer.Buffer([0, 42, 3]))
+    t.deepEqual(impl.Buffer.from(new Uint8Array([0, 42, 3])), new buffer.Buffer(new Uint8Array([0, 42, 3])))
+    t.deepEqual(impl.Buffer.from([]), new buffer.Buffer([]))
+  })
+  t.end()
+})
+
+test('safer.Buffer.from returns consistent results', function (t) {
+  [index, safer, dangerous].forEach(function (impl) {
+    t.deepEqual(impl.Buffer.from(''), impl.Buffer.alloc(0))
+    t.deepEqual(impl.Buffer.from([]), impl.Buffer.alloc(0))
+    t.deepEqual(impl.Buffer.from(new Uint8Array([])), impl.Buffer.alloc(0))
+    t.deepEqual(impl.Buffer.from('string', 'utf-8'), impl.Buffer.from('string'))
+    t.deepEqual(impl.Buffer.from('string'), impl.Buffer.from([115, 116, 114, 105, 110, 103]))
+    t.deepEqual(impl.Buffer.from('string'), impl.Buffer.from(impl.Buffer.from('string')))
+    t.deepEqual(impl.Buffer.from('b25ldHdvdGhyZWU=', 'base64'), impl.Buffer.from('onetwothree'))
+    t.notDeepEqual(impl.Buffer.from('b25ldHdvdGhyZWU='), impl.Buffer.from('onetwothree'))
+  })
+  t.end()
+})
diff --git a/backend/node_modules/send/HISTORY.md b/backend/node_modules/send/HISTORY.md
new file mode 100644
index 0000000..958b934
--- /dev/null
+++ b/backend/node_modules/send/HISTORY.md
@@ -0,0 +1,580 @@
+1.2.0 / 2025-03-27
+==================
+
+  * deps:
+    * `mime-types@^3.0.1` 
+    * `fresh@^2.0.0` 
+    * removed `destroy`
+  * remove `getHeaderNames()` polyfill and refactor `clearHeaders()`
+
+1.1.0 / 2024-09-10
+==================
+
+* Changes from 0.19.0
+
+1.0.0 / 2024-07-25
+==================
+
+  * Drop support for Node.js <18.0
+  * `statuses@^2.0.1`
+  * `range-parser@^1.2.1`
+  * `on-finished@^2.4.1`
+  * `ms@^2.1.3`
+  * `mime-types@^2.1.35`
+  * `http-errors@^2.0.0`
+  * `fresh@^0.5.2`
+  * `etag@^1.8.1`
+  * `escape-html@^1.0.3`
+  * `encodeurl@^2.0.0`
+  * `destroy@^1.2.0`
+  * `debug@^4.3.5`
+
+1.0.0-beta.2 / 2024-03-04
+=========================
+
+  * Changes from 0.18.0
+
+1.0.0-beta.1 / 2022-02-04
+=========================
+
+  * Drop support for Node.js 0.8
+  * Remove `hidden` option -- use `dotfiles` option
+  * Remove `from` alias to `root` -- use `root` directly
+  * Remove `send.etag()` -- use `etag` in `options`
+  * Remove `send.index()` -- use `index` in `options`
+  * Remove `send.maxage()` -- use `maxAge` in `options`
+  * Remove `send.root()` -- use `root` in `options`
+  * Use `mime-types` for file to content type mapping -- removed `send.mime`
+  * deps: debug@3.1.0
+    - Add `DEBUG_HIDE_DATE` environment variable
+    - Change timer to per-namespace instead of global
+    - Change non-TTY date format
+    - Remove `DEBUG_FD` environment variable support
+    - Support 256 namespace colors
+
+0.19.0 / 2024-09-10
+===================
+
+* Remove link renderization in html while redirecting
+
+0.18.0 / 2022-03-23
+===================
+
+  * Fix emitted 416 error missing headers property
+  * Limit the headers removed for 304 response
+  * deps: depd@2.0.0
+    - Replace internal `eval` usage with `Function` constructor
+    - Use instance methods on `process` to check for listeners
+  * deps: destroy@1.2.0
+  * deps: http-errors@2.0.0
+    - deps: depd@2.0.0
+    - deps: statuses@2.0.1
+  * deps: on-finished@2.4.1
+  * deps: statuses@2.0.1
+
+0.17.2 / 2021-12-11
+===================
+
+  * pref: ignore empty http tokens
+  * deps: http-errors@1.8.1
+    - deps: inherits@2.0.4
+    - deps: toidentifier@1.0.1
+    - deps: setprototypeof@1.2.0
+  * deps: ms@2.1.3
+
+0.17.1 / 2019-05-10
+===================
+
+  * Set stricter CSP header in redirect & error responses
+  * deps: range-parser@~1.2.1
+
+0.17.0 / 2019-05-03
+===================
+
+  * deps: http-errors@~1.7.2
+    - Set constructor name when possible
+    - Use `toidentifier` module to make class names
+    - deps: depd@~1.1.2
+    - deps: setprototypeof@1.1.1
+    - deps: statuses@'>= 1.5.0 < 2'
+  * deps: mime@1.6.0
+    - Add extensions for JPEG-2000 images
+    - Add new `font/*` types from IANA
+    - Add WASM mapping
+    - Update `.bdoc` to `application/bdoc`
+    - Update `.bmp` to `image/bmp`
+    - Update `.m4a` to `audio/mp4`
+    - Update `.rtf` to `application/rtf`
+    - Update `.wav` to `audio/wav`
+    - Update `.xml` to `application/xml`
+    - Update generic extensions to `application/octet-stream`:
+      `.deb`, `.dll`, `.dmg`, `.exe`, `.iso`, `.msi`
+    - Use mime-score module to resolve extension conflicts
+  * deps: ms@2.1.1
+    - Add `week`/`w` support
+    - Fix negative number handling
+  * deps: statuses@~1.5.0
+  * perf: remove redundant `path.normalize` call
+
+0.16.2 / 2018-02-07
+===================
+
+  * Fix incorrect end tag in default error & redirects
+  * deps: depd@~1.1.2
+    - perf: remove argument reassignment
+  * deps: encodeurl@~1.0.2
+    - Fix encoding `%` as last character
+  * deps: statuses@~1.4.0
+
+0.16.1 / 2017-09-29
+===================
+
+  * Fix regression in edge-case behavior for empty `path`
+
+0.16.0 / 2017-09-27
+===================
+
+  * Add `immutable` option
+  * Fix missing `</html>` in default error & redirects
+  * Use instance methods on steam to check for listeners
+  * deps: mime@1.4.1
+    - Add 70 new types for file extensions
+    - Set charset as "UTF-8" for .js and .json
+  * perf: improve path validation speed
+
+0.15.6 / 2017-09-22
+===================
+
+  * deps: debug@2.6.9
+  * perf: improve `If-Match` token parsing
+
+0.15.5 / 2017-09-20
+===================
+
+  * deps: etag@~1.8.1
+    - perf: replace regular expression with substring
+  * deps: fresh@0.5.2
+    - Fix handling of modified headers with invalid dates
+    - perf: improve ETag match loop
+    - perf: improve `If-None-Match` token parsing
+
+0.15.4 / 2017-08-05
+===================
+
+  * deps: debug@2.6.8
+  * deps: depd@~1.1.1
+    - Remove unnecessary `Buffer` loading
+  * deps: http-errors@~1.6.2
+    - deps: depd@1.1.1
+
+0.15.3 / 2017-05-16
+===================
+
+  * deps: debug@2.6.7
+    - deps: ms@2.0.0
+  * deps: ms@2.0.0
+
+0.15.2 / 2017-04-26
+===================
+
+  * deps: debug@2.6.4
+    - Fix `DEBUG_MAX_ARRAY_LENGTH`
+    - deps: ms@0.7.3
+  * deps: ms@1.0.0
+
+0.15.1 / 2017-03-04
+===================
+
+  * Fix issue when `Date.parse` does not return `NaN` on invalid date
+  * Fix strict violation in broken environments
+
+0.15.0 / 2017-02-25
+===================
+
+  * Support `If-Match` and `If-Unmodified-Since` headers
+  * Add `res` and `path` arguments to `directory` event
+  * Remove usage of `res._headers` private field
+    - Improves compatibility with Node.js 8 nightly
+  * Send complete HTML document in redirect & error responses
+  * Set default CSP header in redirect & error responses
+  * Use `res.getHeaderNames()` when available
+  * Use `res.headersSent` when available
+  * deps: debug@2.6.1
+    - Allow colors in workers
+    - Deprecated `DEBUG_FD` environment variable set to `3` or higher
+    - Fix error when running under React Native
+    - Use same color for same namespace
+    - deps: ms@0.7.2
+  * deps: etag@~1.8.0
+  * deps: fresh@0.5.0
+    - Fix false detection of `no-cache` request directive
+    - Fix incorrect result when `If-None-Match` has both `*` and ETags
+    - Fix weak `ETag` matching to match spec
+    - perf: delay reading header values until needed
+    - perf: enable strict mode
+    - perf: hoist regular expressions
+    - perf: remove duplicate conditional
+    - perf: remove unnecessary boolean coercions
+    - perf: skip checking modified time if ETag check failed
+    - perf: skip parsing `If-None-Match` when no `ETag` header
+    - perf: use `Date.parse` instead of `new Date`
+  * deps: http-errors@~1.6.1
+    - Make `message` property enumerable for `HttpError`s
+    - deps: setprototypeof@1.0.3
+
+0.14.2 / 2017-01-23
+===================
+
+  * deps: http-errors@~1.5.1
+    - deps: inherits@2.0.3
+    - deps: setprototypeof@1.0.2
+    - deps: statuses@'>= 1.3.1 < 2'
+  * deps: ms@0.7.2
+  * deps: statuses@~1.3.1
+
+0.14.1 / 2016-06-09
+===================
+
+  * Fix redirect error when `path` contains raw non-URL characters
+  * Fix redirect when `path` starts with multiple forward slashes
+
+0.14.0 / 2016-06-06
+===================
+
+  * Add `acceptRanges` option
+  * Add `cacheControl` option
+  * Attempt to combine multiple ranges into single range
+  * Correctly inherit from `Stream` class
+  * Fix `Content-Range` header in 416 responses when using `start`/`end` options
+  * Fix `Content-Range` header missing from default 416 responses
+  * Ignore non-byte `Range` headers
+  * deps: http-errors@~1.5.0
+    - Add `HttpError` export, for `err instanceof createError.HttpError`
+    - Support new code `421 Misdirected Request`
+    - Use `setprototypeof` module to replace `__proto__` setting
+    - deps: inherits@2.0.1
+    - deps: statuses@'>= 1.3.0 < 2'
+    - perf: enable strict mode
+  * deps: range-parser@~1.2.0
+    - Fix incorrectly returning -1 when there is at least one valid range
+    - perf: remove internal function
+  * deps: statuses@~1.3.0
+    - Add `421 Misdirected Request`
+    - perf: enable strict mode
+  * perf: remove argument reassignment
+
+0.13.2 / 2016-03-05
+===================
+
+  * Fix invalid `Content-Type` header when `send.mime.default_type` unset
+
+0.13.1 / 2016-01-16
+===================
+
+  * deps: depd@~1.1.0
+    - Support web browser loading
+    - perf: enable strict mode
+  * deps: destroy@~1.0.4
+    - perf: enable strict mode
+  * deps: escape-html@~1.0.3
+    - perf: enable strict mode
+    - perf: optimize string replacement
+    - perf: use faster string coercion
+  * deps: range-parser@~1.0.3
+    - perf: enable strict mode
+
+0.13.0 / 2015-06-16
+===================
+
+  * Allow Node.js HTTP server to set `Date` response header
+  * Fix incorrectly removing `Content-Location` on 304 response
+  * Improve the default redirect response headers
+  * Send appropriate headers on default error response
+  * Use `http-errors` for standard emitted errors
+  * Use `statuses` instead of `http` module for status messages
+  * deps: escape-html@1.0.2
+  * deps: etag@~1.7.0
+    - Improve stat performance by removing hashing
+  * deps: fresh@0.3.0
+    - Add weak `ETag` matching support
+  * deps: on-finished@~2.3.0
+    - Add defined behavior for HTTP `CONNECT` requests
+    - Add defined behavior for HTTP `Upgrade` requests
+    - deps: ee-first@1.1.1
+  * perf: enable strict mode
+  * perf: remove unnecessary array allocations
+
+0.12.3 / 2015-05-13
+===================
+
+  * deps: debug@~2.2.0
+    - deps: ms@0.7.1
+  * deps: depd@~1.0.1
+  * deps: etag@~1.6.0
+   - Improve support for JXcore
+   - Support "fake" stats objects in environments without `fs`
+  * deps: ms@0.7.1
+    - Prevent extraordinarily long inputs
+  * deps: on-finished@~2.2.1
+
+0.12.2 / 2015-03-13
+===================
+
+  * Throw errors early for invalid `extensions` or `index` options
+  * deps: debug@~2.1.3
+    - Fix high intensity foreground color for bold
+    - deps: ms@0.7.0
+
+0.12.1 / 2015-02-17
+===================
+
+  * Fix regression sending zero-length files
+
+0.12.0 / 2015-02-16
+===================
+
+  * Always read the stat size from the file
+  * Fix mutating passed-in `options`
+  * deps: mime@1.3.4
+
+0.11.1 / 2015-01-20
+===================
+
+  * Fix `root` path disclosure
+
+0.11.0 / 2015-01-05
+===================
+
+  * deps: debug@~2.1.1
+  * deps: etag@~1.5.1
+    - deps: crc@3.2.1
+  * deps: ms@0.7.0
+    - Add `milliseconds`
+    - Add `msecs`
+    - Add `secs`
+    - Add `mins`
+    - Add `hrs`
+    - Add `yrs`
+  * deps: on-finished@~2.2.0
+
+0.10.1 / 2014-10-22
+===================
+
+  * deps: on-finished@~2.1.1
+    - Fix handling of pipelined requests
+
+0.10.0 / 2014-10-15
+===================
+
+  * deps: debug@~2.1.0
+    - Implement `DEBUG_FD` env variable support
+  * deps: depd@~1.0.0
+  * deps: etag@~1.5.0
+    - Improve string performance
+    - Slightly improve speed for weak ETags over 1KB
+
+0.9.3 / 2014-09-24
+==================
+
+  * deps: etag@~1.4.0
+    - Support "fake" stats objects
+
+0.9.2 / 2014-09-15
+==================
+
+  * deps: depd@0.4.5
+  * deps: etag@~1.3.1
+  * deps: range-parser@~1.0.2
+
+0.9.1 / 2014-09-07
+==================
+
+  * deps: fresh@0.2.4
+
+0.9.0 / 2014-09-07
+==================
+
+  * Add `lastModified` option
+  * Use `etag` to generate `ETag` header
+  * deps: debug@~2.0.0
+
+0.8.5 / 2014-09-04
+==================
+
+  * Fix malicious path detection for empty string path
+
+0.8.4 / 2014-09-04
+==================
+
+  * Fix a path traversal issue when using `root`
+
+0.8.3 / 2014-08-16
+==================
+
+  * deps: destroy@1.0.3
+    - renamed from dethroy
+  * deps: on-finished@2.1.0
+
+0.8.2 / 2014-08-14
+==================
+
+  * Work around `fd` leak in Node.js 0.10 for `fs.ReadStream`
+  * deps: dethroy@1.0.2
+
+0.8.1 / 2014-08-05
+==================
+
+  * Fix `extensions` behavior when file already has extension
+
+0.8.0 / 2014-08-05
+==================
+
+  * Add `extensions` option
+
+0.7.4 / 2014-08-04
+==================
+
+  * Fix serving index files without root dir
+
+0.7.3 / 2014-07-29
+==================
+
+  * Fix incorrect 403 on Windows and Node.js 0.11
+
+0.7.2 / 2014-07-27
+==================
+
+  * deps: depd@0.4.4
+    - Work-around v8 generating empty stack traces
+
+0.7.1 / 2014-07-26
+==================
+
+ * deps: depd@0.4.3
+   - Fix exception when global `Error.stackTraceLimit` is too low
+
+0.7.0 / 2014-07-20
+==================
+
+ * Deprecate `hidden` option; use `dotfiles` option
+ * Add `dotfiles` option
+ * deps: debug@1.0.4
+ * deps: depd@0.4.2
+   - Add `TRACE_DEPRECATION` environment variable
+   - Remove non-standard grey color from color output
+   - Support `--no-deprecation` argument
+   - Support `--trace-deprecation` argument
+
+0.6.0 / 2014-07-11
+==================
+
+ * Deprecate `from` option; use `root` option
+ * Deprecate `send.etag()` -- use `etag` in `options`
+ * Deprecate `send.hidden()` -- use `hidden` in `options`
+ * Deprecate `send.index()` -- use `index` in `options`
+ * Deprecate `send.maxage()` -- use `maxAge` in `options`
+ * Deprecate `send.root()` -- use `root` in `options`
+ * Cap `maxAge` value to 1 year
+ * deps: debug@1.0.3
+   - Add support for multiple wildcards in namespaces
+
+0.5.0 / 2014-06-28
+==================
+
+ * Accept string for `maxAge` (converted by `ms`)
+ * Add `headers` event
+ * Include link in default redirect response
+ * Use `EventEmitter.listenerCount` to count listeners
+
+0.4.3 / 2014-06-11
+==================
+
+ * Do not throw un-catchable error on file open race condition
+ * Use `escape-html` for HTML escaping
+ * deps: debug@1.0.2
+   - fix some debugging output colors on node.js 0.8
+ * deps: finished@1.2.2
+ * deps: fresh@0.2.2
+
+0.4.2 / 2014-06-09
+==================
+
+ * fix "event emitter leak" warnings
+ * deps: debug@1.0.1
+ * deps: finished@1.2.1
+
+0.4.1 / 2014-06-02
+==================
+
+ * Send `max-age` in `Cache-Control` in correct format
+
+0.4.0 / 2014-05-27
+==================
+
+ * Calculate ETag with md5 for reduced collisions
+ * Fix wrong behavior when index file matches directory
+ * Ignore stream errors after request ends
+   - Goodbye `EBADF, read`
+ * Skip directories in index file search
+ * deps: debug@0.8.1
+
+0.3.0 / 2014-04-24
+==================
+
+ * Fix sending files with dots without root set
+ * Coerce option types
+ * Accept API options in options object
+ * Set etags to "weak"
+ * Include file path in etag
+ * Make "Can't set headers after they are sent." catchable
+ * Send full entity-body for multi range requests
+ * Default directory access to 403 when index disabled
+ * Support multiple index paths
+ * Support "If-Range" header
+ * Control whether to generate etags
+ * deps: mime@1.2.11
+
+0.2.0 / 2014-01-29
+==================
+
+ * update range-parser and fresh
+
+0.1.4 / 2013-08-11 
+==================
+
+ * update fresh
+
+0.1.3 / 2013-07-08 
+==================
+
+ * Revert "Fix fd leak"
+
+0.1.2 / 2013-07-03 
+==================
+
+ * Fix fd leak
+
+0.1.0 / 2012-08-25 
+==================
+
+  * add options parameter to send() that is passed to fs.createReadStream() [kanongil]
+
+0.0.4 / 2012-08-16 
+==================
+
+  * allow custom "Accept-Ranges" definition
+
+0.0.3 / 2012-07-16 
+==================
+
+  * fix normalization of the root directory. Closes #3
+
+0.0.2 / 2012-07-09 
+==================
+
+  * add passing of req explicitly for now (YUCK)
+
+0.0.1 / 2010-01-03
+==================
+
+  * Initial release
diff --git a/backend/node_modules/send/LICENSE b/backend/node_modules/send/LICENSE
new file mode 100644
index 0000000..b6ea1c1
--- /dev/null
+++ b/backend/node_modules/send/LICENSE
@@ -0,0 +1,23 @@
+(The MIT License)
+
+Copyright (c) 2012 TJ Holowaychuk
+Copyright (c) 2014-2022 Douglas Christopher Wilson
+
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of this software and associated documentation files (the
+'Software'), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sublicense, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to
+the following conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
diff --git a/backend/node_modules/send/README.md b/backend/node_modules/send/README.md
new file mode 100644
index 0000000..350fccd
--- /dev/null
+++ b/backend/node_modules/send/README.md
@@ -0,0 +1,317 @@
+# send
+
+[![NPM Version][npm-version-image]][npm-url]
+[![NPM Downloads][npm-downloads-image]][npm-url]
+[![CI][github-actions-ci-image]][github-actions-ci-url]
+[![Test Coverage][coveralls-image]][coveralls-url]
+
+Send is a library for streaming files from the file system as a http response
+supporting partial responses (Ranges), conditional-GET negotiation (If-Match,
+If-Unmodified-Since, If-None-Match, If-Modified-Since), high test coverage,
+and granular events which may be leveraged to take appropriate actions in your
+application or framework.
+
+Looking to serve up entire folders mapped to URLs? Try [serve-static](https://www.npmjs.org/package/serve-static).
+
+## Installation
+
+This is a [Node.js](https://nodejs.org/en/) module available through the
+[npm registry](https://www.npmjs.com/). Installation is done using the
+[`npm install` command](https://docs.npmjs.com/getting-started/installing-npm-packages-locally):
+
+```bash
+$ npm install send
+```
+
+## API
+
+```js
+var send = require('send')
+```
+
+### send(req, path, [options])
+
+Create a new `SendStream` for the given path to send to a `res`. The `req` is
+the Node.js HTTP request and the `path` is a urlencoded path to send (urlencoded,
+not the actual file-system path).
+
+#### Options
+
+##### acceptRanges
+
+Enable or disable accepting ranged requests, defaults to true.
+Disabling this will not send `Accept-Ranges` and ignore the contents
+of the `Range` request header.
+
+##### cacheControl
+
+Enable or disable setting `Cache-Control` response header, defaults to
+true. Disabling this will ignore the `immutable` and `maxAge` options.
+
+##### dotfiles
+
+Set how "dotfiles" are treated when encountered. A dotfile is a file
+or directory that begins with a dot ("."). Note this check is done on
+the path itself without checking if the path actually exists on the
+disk. If `root` is specified, only the dotfiles above the root are
+checked (i.e. the root itself can be within a dotfile when set
+to "deny").
+
+  - `'allow'` No special treatment for dotfiles.
+  - `'deny'` Send a 403 for any request for a dotfile.
+  - `'ignore'` Pretend like the dotfile does not exist and 404.
+
+The default value is _similar_ to `'ignore'`, with the exception that
+this default will not ignore the files within a directory that begins
+with a dot, for backward-compatibility.
+
+##### end
+
+Byte offset at which the stream ends, defaults to the length of the file
+minus 1. The end is inclusive in the stream, meaning `end: 3` will include
+the 4th byte in the stream.
+
+##### etag
+
+Enable or disable etag generation, defaults to true.
+
+##### extensions
+
+If a given file doesn't exist, try appending one of the given extensions,
+in the given order. By default, this is disabled (set to `false`). An
+example value that will serve extension-less HTML files: `['html', 'htm']`.
+This is skipped if the requested file already has an extension.
+
+##### immutable
+
+Enable or disable the `immutable` directive in the `Cache-Control` response
+header, defaults to `false`. If set to `true`, the `maxAge` option should
+also be specified to enable caching. The `immutable` directive will prevent
+supported clients from making conditional requests during the life of the
+`maxAge` option to check if the file has changed.
+
+##### index
+
+By default send supports "index.html" files, to disable this
+set `false` or to supply a new index pass a string or an array
+in preferred order.
+
+##### lastModified
+
+Enable or disable `Last-Modified` header, defaults to true. Uses the file
+system's last modified value.
+
+##### maxAge
+
+Provide a max-age in milliseconds for http caching, defaults to 0.
+This can also be a string accepted by the
+[ms](https://www.npmjs.org/package/ms#readme) module.
+
+##### root
+
+Serve files relative to `path`.
+
+##### start
+
+Byte offset at which the stream starts, defaults to 0. The start is inclusive,
+meaning `start: 2` will include the 3rd byte in the stream.
+
+#### Events
+
+The `SendStream` is an event emitter and will emit the following events:
+
+  - `error` an error occurred `(err)`
+  - `directory` a directory was requested `(res, path)`
+  - `file` a file was requested `(path, stat)`
+  - `headers` the headers are about to be set on a file `(res, path, stat)`
+  - `stream` file streaming has started `(stream)`
+  - `end` streaming has completed
+
+#### .pipe
+
+The `pipe` method is used to pipe the response into the Node.js HTTP response
+object, typically `send(req, path, options).pipe(res)`.
+
+## Error-handling
+
+By default when no `error` listeners are present an automatic response will be
+made, otherwise you have full control over the response, aka you may show a 5xx
+page etc.
+
+## Caching
+
+It does _not_ perform internal caching, you should use a reverse proxy cache
+such as Varnish for this, or those fancy things called CDNs. If your
+application is small enough that it would benefit from single-node memory
+caching, it's small enough that it does not need caching at all ;).
+
+## Debugging
+
+To enable `debug()` instrumentation output export __DEBUG__:
+
+```
+$ DEBUG=send node app
+```
+
+## Running tests
+
+```
+$ npm install
+$ npm test
+```
+
+## Examples
+
+### Serve a specific file
+
+This simple example will send a specific file to all requests.
+
+```js
+var http = require('http')
+var send = require('send')
+
+var server = http.createServer(function onRequest (req, res) {
+  send(req, '/path/to/index.html')
+    .pipe(res)
+})
+
+server.listen(3000)
+```
+
+### Serve all files from a directory
+
+This simple example will just serve up all the files in a
+given directory as the top-level. For example, a request
+`GET /foo.txt` will send back `/www/public/foo.txt`.
+
+```js
+var http = require('http')
+var parseUrl = require('parseurl')
+var send = require('send')
+
+var server = http.createServer(function onRequest (req, res) {
+  send(req, parseUrl(req).pathname, { root: '/www/public' })
+    .pipe(res)
+})
+
+server.listen(3000)
+```
+
+### Custom file types
+
+```js
+var extname = require('path').extname
+var http = require('http')
+var parseUrl = require('parseurl')
+var send = require('send')
+
+var server = http.createServer(function onRequest (req, res) {
+  send(req, parseUrl(req).pathname, { root: '/www/public' })
+    .on('headers', function (res, path) {
+      switch (extname(path)) {
+        case '.x-mt':
+        case '.x-mtt':
+          // custom type for these extensions
+          res.setHeader('Content-Type', 'application/x-my-type')
+          break
+      }
+    })
+    .pipe(res)
+})
+
+server.listen(3000)
+```
+
+### Custom directory index view
+
+This is an example of serving up a structure of directories with a
+custom function to render a listing of a directory.
+
+```js
+var http = require('http')
+var fs = require('fs')
+var parseUrl = require('parseurl')
+var send = require('send')
+
+// Transfer arbitrary files from within /www/example.com/public/*
+// with a custom handler for directory listing
+var server = http.createServer(function onRequest (req, res) {
+  send(req, parseUrl(req).pathname, { index: false, root: '/www/public' })
+    .once('directory', directory)
+    .pipe(res)
+})
+
+server.listen(3000)
+
+// Custom directory handler
+function directory (res, path) {
+  var stream = this
+
+  // redirect to trailing slash for consistent url
+  if (!stream.hasTrailingSlash()) {
+    return stream.redirect(path)
+  }
+
+  // get directory list
+  fs.readdir(path, function onReaddir (err, list) {
+    if (err) return stream.error(err)
+
+    // render an index for the directory
+    res.setHeader('Content-Type', 'text/plain; charset=UTF-8')
+    res.end(list.join('\n') + '\n')
+  })
+}
+```
+
+### Serving from a root directory with custom error-handling
+
+```js
+var http = require('http')
+var parseUrl = require('parseurl')
+var send = require('send')
+
+var server = http.createServer(function onRequest (req, res) {
+  // your custom error-handling logic:
+  function error (err) {
+    res.statusCode = err.status || 500
+    res.end(err.message)
+  }
+
+  // your custom headers
+  function headers (res, path, stat) {
+    // serve all files for download
+    res.setHeader('Content-Disposition', 'attachment')
+  }
+
+  // your custom directory handling logic:
+  function redirect () {
+    res.statusCode = 301
+    res.setHeader('Location', req.url + '/')
+    res.end('Redirecting to ' + req.url + '/')
+  }
+
+  // transfer arbitrary files from within
+  // /www/example.com/public/*
+  send(req, parseUrl(req).pathname, { root: '/www/public' })
+    .on('error', error)
+    .on('directory', redirect)
+    .on('headers', headers)
+    .pipe(res)
+})
+
+server.listen(3000)
+```
+
+## License
+
+[MIT](LICENSE)
+
+[coveralls-image]: https://badgen.net/coveralls/c/github/pillarjs/send/master
+[coveralls-url]: https://coveralls.io/r/pillarjs/send?branch=master
+[github-actions-ci-image]: https://badgen.net/github/checks/pillarjs/send/master?label=linux
+[github-actions-ci-url]: https://github.com/pillarjs/send/actions/workflows/ci.yml
+[node-image]: https://badgen.net/npm/node/send
+[node-url]: https://nodejs.org/en/download/
+[npm-downloads-image]: https://badgen.net/npm/dm/send
+[npm-url]: https://npmjs.org/package/send
+[npm-version-image]: https://badgen.net/npm/v/send
diff --git a/backend/node_modules/send/index.js b/backend/node_modules/send/index.js
new file mode 100644
index 0000000..1655053
--- /dev/null
+++ b/backend/node_modules/send/index.js
@@ -0,0 +1,997 @@
+/*!
+ * send
+ * Copyright(c) 2012 TJ Holowaychuk
+ * Copyright(c) 2014-2022 Douglas Christopher Wilson
+ * MIT Licensed
+ */
+
+'use strict'
+
+/**
+ * Module dependencies.
+ * @private
+ */
+
+var createError = require('http-errors')
+var debug = require('debug')('send')
+var encodeUrl = require('encodeurl')
+var escapeHtml = require('escape-html')
+var etag = require('etag')
+var fresh = require('fresh')
+var fs = require('fs')
+var mime = require('mime-types')
+var ms = require('ms')
+var onFinished = require('on-finished')
+var parseRange = require('range-parser')
+var path = require('path')
+var statuses = require('statuses')
+var Stream = require('stream')
+var util = require('util')
+
+/**
+ * Path function references.
+ * @private
+ */
+
+var extname = path.extname
+var join = path.join
+var normalize = path.normalize
+var resolve = path.resolve
+var sep = path.sep
+
+/**
+ * Regular expression for identifying a bytes Range header.
+ * @private
+ */
+
+var BYTES_RANGE_REGEXP = /^ *bytes=/
+
+/**
+ * Maximum value allowed for the max age.
+ * @private
+ */
+
+var MAX_MAXAGE = 60 * 60 * 24 * 365 * 1000 // 1 year
+
+/**
+ * Regular expression to match a path with a directory up component.
+ * @private
+ */
+
+var UP_PATH_REGEXP = /(?:^|[\\/])\.\.(?:[\\/]|$)/
+
+/**
+ * Module exports.
+ * @public
+ */
+
+module.exports = send
+
+/**
+ * Return a `SendStream` for `req` and `path`.
+ *
+ * @param {object} req
+ * @param {string} path
+ * @param {object} [options]
+ * @return {SendStream}
+ * @public
+ */
+
+function send (req, path, options) {
+  return new SendStream(req, path, options)
+}
+
+/**
+ * Initialize a `SendStream` with the given `path`.
+ *
+ * @param {Request} req
+ * @param {String} path
+ * @param {object} [options]
+ * @private
+ */
+
+function SendStream (req, path, options) {
+  Stream.call(this)
+
+  var opts = options || {}
+
+  this.options = opts
+  this.path = path
+  this.req = req
+
+  this._acceptRanges = opts.acceptRanges !== undefined
+    ? Boolean(opts.acceptRanges)
+    : true
+
+  this._cacheControl = opts.cacheControl !== undefined
+    ? Boolean(opts.cacheControl)
+    : true
+
+  this._etag = opts.etag !== undefined
+    ? Boolean(opts.etag)
+    : true
+
+  this._dotfiles = opts.dotfiles !== undefined
+    ? opts.dotfiles
+    : 'ignore'
+
+  if (this._dotfiles !== 'ignore' && this._dotfiles !== 'allow' && this._dotfiles !== 'deny') {
+    throw new TypeError('dotfiles option must be "allow", "deny", or "ignore"')
+  }
+
+  this._extensions = opts.extensions !== undefined
+    ? normalizeList(opts.extensions, 'extensions option')
+    : []
+
+  this._immutable = opts.immutable !== undefined
+    ? Boolean(opts.immutable)
+    : false
+
+  this._index = opts.index !== undefined
+    ? normalizeList(opts.index, 'index option')
+    : ['index.html']
+
+  this._lastModified = opts.lastModified !== undefined
+    ? Boolean(opts.lastModified)
+    : true
+
+  this._maxage = opts.maxAge || opts.maxage
+  this._maxage = typeof this._maxage === 'string'
+    ? ms(this._maxage)
+    : Number(this._maxage)
+  this._maxage = !isNaN(this._maxage)
+    ? Math.min(Math.max(0, this._maxage), MAX_MAXAGE)
+    : 0
+
+  this._root = opts.root
+    ? resolve(opts.root)
+    : null
+}
+
+/**
+ * Inherits from `Stream`.
+ */
+
+util.inherits(SendStream, Stream)
+
+/**
+ * Emit error with `status`.
+ *
+ * @param {number} status
+ * @param {Error} [err]
+ * @private
+ */
+
+SendStream.prototype.error = function error (status, err) {
+  // emit if listeners instead of responding
+  if (hasListeners(this, 'error')) {
+    return this.emit('error', createHttpError(status, err))
+  }
+
+  var res = this.res
+  var msg = statuses.message[status] || String(status)
+  var doc = createHtmlDocument('Error', escapeHtml(msg))
+
+  // clear existing headers
+  clearHeaders(res)
+
+  // add error headers
+  if (err && err.headers) {
+    setHeaders(res, err.headers)
+  }
+
+  // send basic response
+  res.statusCode = status
+  res.setHeader('Content-Type', 'text/html; charset=UTF-8')
+  res.setHeader('Content-Length', Buffer.byteLength(doc))
+  res.setHeader('Content-Security-Policy', "default-src 'none'")
+  res.setHeader('X-Content-Type-Options', 'nosniff')
+  res.end(doc)
+}
+
+/**
+ * Check if the pathname ends with "/".
+ *
+ * @return {boolean}
+ * @private
+ */
+
+SendStream.prototype.hasTrailingSlash = function hasTrailingSlash () {
+  return this.path[this.path.length - 1] === '/'
+}
+
+/**
+ * Check if this is a conditional GET request.
+ *
+ * @return {Boolean}
+ * @api private
+ */
+
+SendStream.prototype.isConditionalGET = function isConditionalGET () {
+  return this.req.headers['if-match'] ||
+    this.req.headers['if-unmodified-since'] ||
+    this.req.headers['if-none-match'] ||
+    this.req.headers['if-modified-since']
+}
+
+/**
+ * Check if the request preconditions failed.
+ *
+ * @return {boolean}
+ * @private
+ */
+
+SendStream.prototype.isPreconditionFailure = function isPreconditionFailure () {
+  var req = this.req
+  var res = this.res
+
+  // if-match
+  var match = req.headers['if-match']
+  if (match) {
+    var etag = res.getHeader('ETag')
+    return !etag || (match !== '*' && parseTokenList(match).every(function (match) {
+      return match !== etag && match !== 'W/' + etag && 'W/' + match !== etag
+    }))
+  }
+
+  // if-unmodified-since
+  var unmodifiedSince = parseHttpDate(req.headers['if-unmodified-since'])
+  if (!isNaN(unmodifiedSince)) {
+    var lastModified = parseHttpDate(res.getHeader('Last-Modified'))
+    return isNaN(lastModified) || lastModified > unmodifiedSince
+  }
+
+  return false
+}
+
+/**
+ * Strip various content header fields for a change in entity.
+ *
+ * @private
+ */
+
+SendStream.prototype.removeContentHeaderFields = function removeContentHeaderFields () {
+  var res = this.res
+
+  res.removeHeader('Content-Encoding')
+  res.removeHeader('Content-Language')
+  res.removeHeader('Content-Length')
+  res.removeHeader('Content-Range')
+  res.removeHeader('Content-Type')
+}
+
+/**
+ * Respond with 304 not modified.
+ *
+ * @api private
+ */
+
+SendStream.prototype.notModified = function notModified () {
+  var res = this.res
+  debug('not modified')
+  this.removeContentHeaderFields()
+  res.statusCode = 304
+  res.end()
+}
+
+/**
+ * Raise error that headers already sent.
+ *
+ * @api private
+ */
+
+SendStream.prototype.headersAlreadySent = function headersAlreadySent () {
+  var err = new Error('Can\'t set headers after they are sent.')
+  debug('headers already sent')
+  this.error(500, err)
+}
+
+/**
+ * Check if the request is cacheable, aka
+ * responded with 2xx or 304 (see RFC 2616 section 14.2{5,6}).
+ *
+ * @return {Boolean}
+ * @api private
+ */
+
+SendStream.prototype.isCachable = function isCachable () {
+  var statusCode = this.res.statusCode
+  return (statusCode >= 200 && statusCode < 300) ||
+    statusCode === 304
+}
+
+/**
+ * Handle stat() error.
+ *
+ * @param {Error} error
+ * @private
+ */
+
+SendStream.prototype.onStatError = function onStatError (error) {
+  switch (error.code) {
+    case 'ENAMETOOLONG':
+    case 'ENOENT':
+    case 'ENOTDIR':
+      this.error(404, error)
+      break
+    default:
+      this.error(500, error)
+      break
+  }
+}
+
+/**
+ * Check if the cache is fresh.
+ *
+ * @return {Boolean}
+ * @api private
+ */
+
+SendStream.prototype.isFresh = function isFresh () {
+  return fresh(this.req.headers, {
+    etag: this.res.getHeader('ETag'),
+    'last-modified': this.res.getHeader('Last-Modified')
+  })
+}
+
+/**
+ * Check if the range is fresh.
+ *
+ * @return {Boolean}
+ * @api private
+ */
+
+SendStream.prototype.isRangeFresh = function isRangeFresh () {
+  var ifRange = this.req.headers['if-range']
+
+  if (!ifRange) {
+    return true
+  }
+
+  // if-range as etag
+  if (ifRange.indexOf('"') !== -1) {
+    var etag = this.res.getHeader('ETag')
+    return Boolean(etag && ifRange.indexOf(etag) !== -1)
+  }
+
+  // if-range as modified date
+  var lastModified = this.res.getHeader('Last-Modified')
+  return parseHttpDate(lastModified) <= parseHttpDate(ifRange)
+}
+
+/**
+ * Redirect to path.
+ *
+ * @param {string} path
+ * @private
+ */
+
+SendStream.prototype.redirect = function redirect (path) {
+  var res = this.res
+
+  if (hasListeners(this, 'directory')) {
+    this.emit('directory', res, path)
+    return
+  }
+
+  if (this.hasTrailingSlash()) {
+    this.error(403)
+    return
+  }
+
+  var loc = encodeUrl(collapseLeadingSlashes(this.path + '/'))
+  var doc = createHtmlDocument('Redirecting', 'Redirecting to ' + escapeHtml(loc))
+
+  // redirect
+  res.statusCode = 301
+  res.setHeader('Content-Type', 'text/html; charset=UTF-8')
+  res.setHeader('Content-Length', Buffer.byteLength(doc))
+  res.setHeader('Content-Security-Policy', "default-src 'none'")
+  res.setHeader('X-Content-Type-Options', 'nosniff')
+  res.setHeader('Location', loc)
+  res.end(doc)
+}
+
+/**
+ * Pipe to `res.
+ *
+ * @param {Stream} res
+ * @return {Stream} res
+ * @api public
+ */
+
+SendStream.prototype.pipe = function pipe (res) {
+  // root path
+  var root = this._root
+
+  // references
+  this.res = res
+
+  // decode the path
+  var path = decode(this.path)
+  if (path === -1) {
+    this.error(400)
+    return res
+  }
+
+  // null byte(s)
+  if (~path.indexOf('\0')) {
+    this.error(400)
+    return res
+  }
+
+  var parts
+  if (root !== null) {
+    // normalize
+    if (path) {
+      path = normalize('.' + sep + path)
+    }
+
+    // malicious path
+    if (UP_PATH_REGEXP.test(path)) {
+      debug('malicious path "%s"', path)
+      this.error(403)
+      return res
+    }
+
+    // explode path parts
+    parts = path.split(sep)
+
+    // join / normalize from optional root dir
+    path = normalize(join(root, path))
+  } else {
+    // ".." is malicious without "root"
+    if (UP_PATH_REGEXP.test(path)) {
+      debug('malicious path "%s"', path)
+      this.error(403)
+      return res
+    }
+
+    // explode path parts
+    parts = normalize(path).split(sep)
+
+    // resolve the path
+    path = resolve(path)
+  }
+
+  // dotfile handling
+  if (containsDotFile(parts)) {
+    debug('%s dotfile "%s"', this._dotfiles, path)
+    switch (this._dotfiles) {
+      case 'allow':
+        break
+      case 'deny':
+        this.error(403)
+        return res
+      case 'ignore':
+      default:
+        this.error(404)
+        return res
+    }
+  }
+
+  // index file support
+  if (this._index.length && this.hasTrailingSlash()) {
+    this.sendIndex(path)
+    return res
+  }
+
+  this.sendFile(path)
+  return res
+}
+
+/**
+ * Transfer `path`.
+ *
+ * @param {String} path
+ * @api public
+ */
+
+SendStream.prototype.send = function send (path, stat) {
+  var len = stat.size
+  var options = this.options
+  var opts = {}
+  var res = this.res
+  var req = this.req
+  var ranges = req.headers.range
+  var offset = options.start || 0
+
+  if (res.headersSent) {
+    // impossible to send now
+    this.headersAlreadySent()
+    return
+  }
+
+  debug('pipe "%s"', path)
+
+  // set header fields
+  this.setHeader(path, stat)
+
+  // set content-type
+  this.type(path)
+
+  // conditional GET support
+  if (this.isConditionalGET()) {
+    if (this.isPreconditionFailure()) {
+      this.error(412)
+      return
+    }
+
+    if (this.isCachable() && this.isFresh()) {
+      this.notModified()
+      return
+    }
+  }
+
+  // adjust len to start/end options
+  len = Math.max(0, len - offset)
+  if (options.end !== undefined) {
+    var bytes = options.end - offset + 1
+    if (len > bytes) len = bytes
+  }
+
+  // Range support
+  if (this._acceptRanges && BYTES_RANGE_REGEXP.test(ranges)) {
+    // parse
+    ranges = parseRange(len, ranges, {
+      combine: true
+    })
+
+    // If-Range support
+    if (!this.isRangeFresh()) {
+      debug('range stale')
+      ranges = -2
+    }
+
+    // unsatisfiable
+    if (ranges === -1) {
+      debug('range unsatisfiable')
+
+      // Content-Range
+      res.setHeader('Content-Range', contentRange('bytes', len))
+
+      // 416 Requested Range Not Satisfiable
+      return this.error(416, {
+        headers: { 'Content-Range': res.getHeader('Content-Range') }
+      })
+    }
+
+    // valid (syntactically invalid/multiple ranges are treated as a regular response)
+    if (ranges !== -2 && ranges.length === 1) {
+      debug('range %j', ranges)
+
+      // Content-Range
+      res.statusCode = 206
+      res.setHeader('Content-Range', contentRange('bytes', len, ranges[0]))
+
+      // adjust for requested range
+      offset += ranges[0].start
+      len = ranges[0].end - ranges[0].start + 1
+    }
+  }
+
+  // clone options
+  for (var prop in options) {
+    opts[prop] = options[prop]
+  }
+
+  // set read options
+  opts.start = offset
+  opts.end = Math.max(offset, offset + len - 1)
+
+  // content-length
+  res.setHeader('Content-Length', len)
+
+  // HEAD support
+  if (req.method === 'HEAD') {
+    res.end()
+    return
+  }
+
+  this.stream(path, opts)
+}
+
+/**
+ * Transfer file for `path`.
+ *
+ * @param {String} path
+ * @api private
+ */
+SendStream.prototype.sendFile = function sendFile (path) {
+  var i = 0
+  var self = this
+
+  debug('stat "%s"', path)
+  fs.stat(path, function onstat (err, stat) {
+    var pathEndsWithSep = path[path.length - 1] === sep
+    if (err && err.code === 'ENOENT' && !extname(path) && !pathEndsWithSep) {
+      // not found, check extensions
+      return next(err)
+    }
+    if (err) return self.onStatError(err)
+    if (stat.isDirectory()) return self.redirect(path)
+    if (pathEndsWithSep) return self.error(404)
+    self.emit('file', path, stat)
+    self.send(path, stat)
+  })
+
+  function next (err) {
+    if (self._extensions.length <= i) {
+      return err
+        ? self.onStatError(err)
+        : self.error(404)
+    }
+
+    var p = path + '.' + self._extensions[i++]
+
+    debug('stat "%s"', p)
+    fs.stat(p, function (err, stat) {
+      if (err) return next(err)
+      if (stat.isDirectory()) return next()
+      self.emit('file', p, stat)
+      self.send(p, stat)
+    })
+  }
+}
+
+/**
+ * Transfer index for `path`.
+ *
+ * @param {String} path
+ * @api private
+ */
+SendStream.prototype.sendIndex = function sendIndex (path) {
+  var i = -1
+  var self = this
+
+  function next (err) {
+    if (++i >= self._index.length) {
+      if (err) return self.onStatError(err)
+      return self.error(404)
+    }
+
+    var p = join(path, self._index[i])
+
+    debug('stat "%s"', p)
+    fs.stat(p, function (err, stat) {
+      if (err) return next(err)
+      if (stat.isDirectory()) return next()
+      self.emit('file', p, stat)
+      self.send(p, stat)
+    })
+  }
+
+  next()
+}
+
+/**
+ * Stream `path` to the response.
+ *
+ * @param {String} path
+ * @param {Object} options
+ * @api private
+ */
+
+SendStream.prototype.stream = function stream (path, options) {
+  var self = this
+  var res = this.res
+
+  // pipe
+  var stream = fs.createReadStream(path, options)
+  this.emit('stream', stream)
+  stream.pipe(res)
+
+  // cleanup
+  function cleanup () {
+    stream.destroy()
+  }
+
+  // response finished, cleanup
+  onFinished(res, cleanup)
+
+  // error handling
+  stream.on('error', function onerror (err) {
+    // clean up stream early
+    cleanup()
+
+    // error
+    self.onStatError(err)
+  })
+
+  // end
+  stream.on('end', function onend () {
+    self.emit('end')
+  })
+}
+
+/**
+ * Set content-type based on `path`
+ * if it hasn't been explicitly set.
+ *
+ * @param {String} path
+ * @api private
+ */
+
+SendStream.prototype.type = function type (path) {
+  var res = this.res
+
+  if (res.getHeader('Content-Type')) return
+
+  var ext = extname(path)
+  var type = mime.contentType(ext) || 'application/octet-stream'
+
+  debug('content-type %s', type)
+  res.setHeader('Content-Type', type)
+}
+
+/**
+ * Set response header fields, most
+ * fields may be pre-defined.
+ *
+ * @param {String} path
+ * @param {Object} stat
+ * @api private
+ */
+
+SendStream.prototype.setHeader = function setHeader (path, stat) {
+  var res = this.res
+
+  this.emit('headers', res, path, stat)
+
+  if (this._acceptRanges && !res.getHeader('Accept-Ranges')) {
+    debug('accept ranges')
+    res.setHeader('Accept-Ranges', 'bytes')
+  }
+
+  if (this._cacheControl && !res.getHeader('Cache-Control')) {
+    var cacheControl = 'public, max-age=' + Math.floor(this._maxage / 1000)
+
+    if (this._immutable) {
+      cacheControl += ', immutable'
+    }
+
+    debug('cache-control %s', cacheControl)
+    res.setHeader('Cache-Control', cacheControl)
+  }
+
+  if (this._lastModified && !res.getHeader('Last-Modified')) {
+    var modified = stat.mtime.toUTCString()
+    debug('modified %s', modified)
+    res.setHeader('Last-Modified', modified)
+  }
+
+  if (this._etag && !res.getHeader('ETag')) {
+    var val = etag(stat)
+    debug('etag %s', val)
+    res.setHeader('ETag', val)
+  }
+}
+
+/**
+ * Clear all headers from a response.
+ *
+ * @param {object} res
+ * @private
+ */
+
+function clearHeaders (res) {
+  for (const header of res.getHeaderNames()) {
+    res.removeHeader(header)
+  }
+}
+
+/**
+ * Collapse all leading slashes into a single slash
+ *
+ * @param {string} str
+ * @private
+ */
+function collapseLeadingSlashes (str) {
+  for (var i = 0; i < str.length; i++) {
+    if (str[i] !== '/') {
+      break
+    }
+  }
+
+  return i > 1
+    ? '/' + str.substr(i)
+    : str
+}
+
+/**
+ * Determine if path parts contain a dotfile.
+ *
+ * @api private
+ */
+
+function containsDotFile (parts) {
+  for (var i = 0; i < parts.length; i++) {
+    var part = parts[i]
+    if (part.length > 1 && part[0] === '.') {
+      return true
+    }
+  }
+
+  return false
+}
+
+/**
+ * Create a Content-Range header.
+ *
+ * @param {string} type
+ * @param {number} size
+ * @param {array} [range]
+ */
+
+function contentRange (type, size, range) {
+  return type + ' ' + (range ? range.start + '-' + range.end : '*') + '/' + size
+}
+
+/**
+ * Create a minimal HTML document.
+ *
+ * @param {string} title
+ * @param {string} body
+ * @private
+ */
+
+function createHtmlDocument (title, body) {
+  return '<!DOCTYPE html>\n' +
+    '<html lang="en">\n' +
+    '<head>\n' +
+    '<meta charset="utf-8">\n' +
+    '<title>' + title + '</title>\n' +
+    '</head>\n' +
+    '<body>\n' +
+    '<pre>' + body + '</pre>\n' +
+    '</body>\n' +
+    '</html>\n'
+}
+
+/**
+ * Create a HttpError object from simple arguments.
+ *
+ * @param {number} status
+ * @param {Error|object} err
+ * @private
+ */
+
+function createHttpError (status, err) {
+  if (!err) {
+    return createError(status)
+  }
+
+  return err instanceof Error
+    ? createError(status, err, { expose: false })
+    : createError(status, err)
+}
+
+/**
+ * decodeURIComponent.
+ *
+ * Allows V8 to only deoptimize this fn instead of all
+ * of send().
+ *
+ * @param {String} path
+ * @api private
+ */
+
+function decode (path) {
+  try {
+    return decodeURIComponent(path)
+  } catch (err) {
+    return -1
+  }
+}
+
+/**
+ * Determine if emitter has listeners of a given type.
+ *
+ * The way to do this check is done three different ways in Node.js >= 0.10
+ * so this consolidates them into a minimal set using instance methods.
+ *
+ * @param {EventEmitter} emitter
+ * @param {string} type
+ * @returns {boolean}
+ * @private
+ */
+
+function hasListeners (emitter, type) {
+  var count = typeof emitter.listenerCount !== 'function'
+    ? emitter.listeners(type).length
+    : emitter.listenerCount(type)
+
+  return count > 0
+}
+
+/**
+ * Normalize the index option into an array.
+ *
+ * @param {boolean|string|array} val
+ * @param {string} name
+ * @private
+ */
+
+function normalizeList (val, name) {
+  var list = [].concat(val || [])
+
+  for (var i = 0; i < list.length; i++) {
+    if (typeof list[i] !== 'string') {
+      throw new TypeError(name + ' must be array of strings or false')
+    }
+  }
+
+  return list
+}
+
+/**
+ * Parse an HTTP Date into a number.
+ *
+ * @param {string} date
+ * @private
+ */
+
+function parseHttpDate (date) {
+  var timestamp = date && Date.parse(date)
+
+  return typeof timestamp === 'number'
+    ? timestamp
+    : NaN
+}
+
+/**
+ * Parse a HTTP token list.
+ *
+ * @param {string} str
+ * @private
+ */
+
+function parseTokenList (str) {
+  var end = 0
+  var list = []
+  var start = 0
+
+  // gather tokens
+  for (var i = 0, len = str.length; i < len; i++) {
+    switch (str.charCodeAt(i)) {
+      case 0x20: /*   */
+        if (start === end) {
+          start = end = i + 1
+        }
+        break
+      case 0x2c: /* , */
+        if (start !== end) {
+          list.push(str.substring(start, end))
+        }
+        start = end = i + 1
+        break
+      default:
+        end = i + 1
+        break
+    }
+  }
+
+  // final token
+  if (start !== end) {
+    list.push(str.substring(start, end))
+  }
+
+  return list
+}
+
+/**
+ * Set an object of headers on a response.
+ *
+ * @param {object} res
+ * @param {object} headers
+ * @private
+ */
+
+function setHeaders (res, headers) {
+  var keys = Object.keys(headers)
+
+  for (var i = 0; i < keys.length; i++) {
+    var key = keys[i]
+    res.setHeader(key, headers[key])
+  }
+}
diff --git a/backend/node_modules/send/package.json b/backend/node_modules/send/package.json
new file mode 100644
index 0000000..d6a969a
--- /dev/null
+++ b/backend/node_modules/send/package.json
@@ -0,0 +1,60 @@
+{
+  "name": "send",
+  "description": "Better streaming static file server with Range and conditional-GET support",
+  "version": "1.2.0",
+  "author": "TJ Holowaychuk <tj@vision-media.ca>",
+  "contributors": [
+    "Douglas Christopher Wilson <doug@somethingdoug.com>",
+    "James Wyatt Cready <jcready@gmail.com>",
+    "Jesús Leganés Combarro <piranna@gmail.com>"
+  ],
+  "license": "MIT",
+  "repository": "pillarjs/send",
+  "keywords": [
+    "static",
+    "file",
+    "server"
+  ],
+  "dependencies": {
+    "debug": "^4.3.5",
+    "encodeurl": "^2.0.0",
+    "escape-html": "^1.0.3",
+    "etag": "^1.8.1",
+    "fresh": "^2.0.0",
+    "http-errors": "^2.0.0",
+    "mime-types": "^3.0.1",
+    "ms": "^2.1.3",
+    "on-finished": "^2.4.1",
+    "range-parser": "^1.2.1",
+    "statuses": "^2.0.1"
+  },
+  "devDependencies": {
+    "after": "^0.8.2",
+    "eslint": "7.32.0",
+    "eslint-config-standard": "14.1.1",
+    "eslint-plugin-import": "2.25.4",
+    "eslint-plugin-markdown": "2.2.1",
+    "eslint-plugin-node": "11.1.0",
+    "eslint-plugin-promise": "5.2.0",
+    "eslint-plugin-standard": "4.1.0",
+    "mocha": "^10.7.0",
+    "nyc": "^17.0.0",
+    "supertest": "6.2.2"
+  },
+  "files": [
+    "HISTORY.md",
+    "LICENSE",
+    "README.md",
+    "index.js"
+  ],
+  "engines": {
+    "node": ">= 18"
+  },
+  "scripts": {
+    "lint": "eslint .",
+    "test": "mocha --check-leaks --reporter spec",
+    "test-ci": "nyc --reporter=lcovonly --reporter=text npm test",
+    "test-cov": "nyc --reporter=html --reporter=text npm test",
+    "version": "node scripts/version-history.js && git add HISTORY.md"
+  }
+}
diff --git a/backend/node_modules/serve-static/HISTORY.md b/backend/node_modules/serve-static/HISTORY.md
new file mode 100644
index 0000000..a3f174e
--- /dev/null
+++ b/backend/node_modules/serve-static/HISTORY.md
@@ -0,0 +1,516 @@
+2.2.0 / 2025-03-27
+==================
+
+* deps: send@^1.2.0
+
+2.1.0 / 2024-09-10
+===================
+
+* Changes from 1.16.0
+* deps: send@^1.2.0
+
+2.0.0 / 2024-08-23
+==================
+
+* deps: 
+  * parseurl@^1.3.3
+  * excape-html@^1.0.3
+  * encodeurl@^2.0.0
+  * supertest@^6.3.4
+  * safe-buffer@^5.2.1
+  * nyc@^17.0.0
+  * mocha@^10.7.0
+* Changes from 1.x
+
+2.0.0-beta.2 / 2024-03-20
+=========================
+
+  * deps: send@1.0.0-beta.2
+
+2.0.0-beta.1 / 2022-02-05
+=========================
+
+  * Change `dotfiles` option default to `'ignore'`
+  * Drop support for Node.js 0.8
+  * Remove `hidden` option; use `dotfiles` option instead
+  * Remove `mime` export; use `mime-types` package instead
+  * deps: send@1.0.0-beta.1
+    - Use `mime-types` for file to content type mapping
+    - deps: debug@3.1.0
+
+1.16.0 / 2024-09-10
+===================
+
+* Remove link renderization in html while redirecting
+
+1.15.0 / 2022-03-24
+===================
+
+  * deps: send@0.18.0
+    - Fix emitted 416 error missing headers property
+    - Limit the headers removed for 304 response
+    - deps: depd@2.0.0
+    - deps: destroy@1.2.0
+    - deps: http-errors@2.0.0
+    - deps: on-finished@2.4.1
+    - deps: statuses@2.0.1
+
+1.14.2 / 2021-12-15
+===================
+
+  * deps: send@0.17.2
+    - deps: http-errors@1.8.1
+    - deps: ms@2.1.3
+    - pref: ignore empty http tokens
+
+1.14.1 / 2019-05-10
+===================
+
+  * Set stricter CSP header in redirect response
+  * deps: send@0.17.1
+    - deps: range-parser@~1.2.1
+
+1.14.0 / 2019-05-07
+===================
+
+  * deps: parseurl@~1.3.3
+  * deps: send@0.17.0
+    - deps: http-errors@~1.7.2
+    - deps: mime@1.6.0
+    - deps: ms@2.1.1
+    - deps: statuses@~1.5.0
+    - perf: remove redundant `path.normalize` call
+
+1.13.2 / 2018-02-07
+===================
+
+  * Fix incorrect end tag in redirects
+  * deps: encodeurl@~1.0.2
+    - Fix encoding `%` as last character
+  * deps: send@0.16.2
+    - deps: depd@~1.1.2
+    - deps: encodeurl@~1.0.2
+    - deps: statuses@~1.4.0
+
+1.13.1 / 2017-09-29
+===================
+
+  * Fix regression when `root` is incorrectly set to a file
+  * deps: send@0.16.1
+
+1.13.0 / 2017-09-27
+===================
+
+  * deps: send@0.16.0
+    - Add 70 new types for file extensions
+    - Add `immutable` option
+    - Fix missing `</html>` in default error & redirects
+    - Set charset as "UTF-8" for .js and .json
+    - Use instance methods on steam to check for listeners
+    - deps: mime@1.4.1
+    - perf: improve path validation speed
+
+1.12.6 / 2017-09-22
+===================
+
+  * deps: send@0.15.6
+    - deps: debug@2.6.9
+    - perf: improve `If-Match` token parsing
+  * perf: improve slash collapsing
+
+1.12.5 / 2017-09-21
+===================
+
+  * deps: parseurl@~1.3.2
+    - perf: reduce overhead for full URLs
+    - perf: unroll the "fast-path" `RegExp`
+  * deps: send@0.15.5
+    - Fix handling of modified headers with invalid dates
+    - deps: etag@~1.8.1
+    - deps: fresh@0.5.2
+
+1.12.4 / 2017-08-05
+===================
+
+  * deps: send@0.15.4
+    - deps: debug@2.6.8
+    - deps: depd@~1.1.1
+    - deps: http-errors@~1.6.2
+
+1.12.3 / 2017-05-16
+===================
+
+  * deps: send@0.15.3
+    - deps: debug@2.6.7
+
+1.12.2 / 2017-04-26
+===================
+
+  * deps: send@0.15.2
+    - deps: debug@2.6.4
+
+1.12.1 / 2017-03-04
+===================
+
+  * deps: send@0.15.1
+    - Fix issue when `Date.parse` does not return `NaN` on invalid date
+    - Fix strict violation in broken environments
+
+1.12.0 / 2017-02-25
+===================
+
+  * Send complete HTML document in redirect response
+  * Set default CSP header in redirect response
+  * deps: send@0.15.0
+    - Fix false detection of `no-cache` request directive
+    - Fix incorrect result when `If-None-Match` has both `*` and ETags
+    - Fix weak `ETag` matching to match spec
+    - Remove usage of `res._headers` private field
+    - Support `If-Match` and `If-Unmodified-Since` headers
+    - Use `res.getHeaderNames()` when available
+    - Use `res.headersSent` when available
+    - deps: debug@2.6.1
+    - deps: etag@~1.8.0
+    - deps: fresh@0.5.0
+    - deps: http-errors@~1.6.1
+
+1.11.2 / 2017-01-23
+===================
+
+  * deps: send@0.14.2
+    - deps: http-errors@~1.5.1
+    - deps: ms@0.7.2
+    - deps: statuses@~1.3.1
+
+1.11.1 / 2016-06-10
+===================
+
+  * Fix redirect error when `req.url` contains raw non-URL characters
+  * deps: send@0.14.1
+
+1.11.0 / 2016-06-07
+===================
+
+  * Use status code 301 for redirects
+  * deps: send@0.14.0
+    - Add `acceptRanges` option
+    - Add `cacheControl` option
+    - Attempt to combine multiple ranges into single range
+    - Correctly inherit from `Stream` class
+    - Fix `Content-Range` header in 416 responses when using `start`/`end` options
+    - Fix `Content-Range` header missing from default 416 responses
+    - Ignore non-byte `Range` headers
+    - deps: http-errors@~1.5.0
+    - deps: range-parser@~1.2.0
+    - deps: statuses@~1.3.0
+    - perf: remove argument reassignment
+
+1.10.3 / 2016-05-30
+===================
+
+  * deps: send@0.13.2
+    - Fix invalid `Content-Type` header when `send.mime.default_type` unset
+
+1.10.2 / 2016-01-19
+===================
+
+  * deps: parseurl@~1.3.1
+    - perf: enable strict mode
+
+1.10.1 / 2016-01-16
+===================
+
+  * deps: escape-html@~1.0.3
+    - perf: enable strict mode
+    - perf: optimize string replacement
+    - perf: use faster string coercion
+  * deps: send@0.13.1
+    - deps: depd@~1.1.0
+    - deps: destroy@~1.0.4
+    - deps: escape-html@~1.0.3
+    - deps: range-parser@~1.0.3
+
+1.10.0 / 2015-06-17
+===================
+
+  * Add `fallthrough` option
+    - Allows declaring this middleware is the final destination
+    - Provides better integration with Express patterns
+  * Fix reading options from options prototype
+  * Improve the default redirect response headers
+  * deps: escape-html@1.0.2
+  * deps: send@0.13.0
+    - Allow Node.js HTTP server to set `Date` response header
+    - Fix incorrectly removing `Content-Location` on 304 response
+    - Improve the default redirect response headers
+    - Send appropriate headers on default error response
+    - Use `http-errors` for standard emitted errors
+    - Use `statuses` instead of `http` module for status messages
+    - deps: escape-html@1.0.2
+    - deps: etag@~1.7.0
+    - deps: fresh@0.3.0
+    - deps: on-finished@~2.3.0
+    - perf: enable strict mode
+    - perf: remove unnecessary array allocations
+  * perf: enable strict mode
+  * perf: remove argument reassignment
+
+1.9.3 / 2015-05-14
+==================
+
+  * deps: send@0.12.3
+    - deps: debug@~2.2.0
+    - deps: depd@~1.0.1
+    - deps: etag@~1.6.0
+    - deps: ms@0.7.1
+    - deps: on-finished@~2.2.1
+
+1.9.2 / 2015-03-14
+==================
+
+  * deps: send@0.12.2
+    - Throw errors early for invalid `extensions` or `index` options
+    - deps: debug@~2.1.3
+
+1.9.1 / 2015-02-17
+==================
+
+  * deps: send@0.12.1
+    - Fix regression sending zero-length files
+
+1.9.0 / 2015-02-16
+==================
+
+  * deps: send@0.12.0
+    - Always read the stat size from the file
+    - Fix mutating passed-in `options`
+    - deps: mime@1.3.4
+
+1.8.1 / 2015-01-20
+==================
+
+  * Fix redirect loop in Node.js 0.11.14
+  * deps: send@0.11.1
+    - Fix root path disclosure
+
+1.8.0 / 2015-01-05
+==================
+
+  * deps: send@0.11.0
+    - deps: debug@~2.1.1
+    - deps: etag@~1.5.1
+    - deps: ms@0.7.0
+    - deps: on-finished@~2.2.0
+
+1.7.2 / 2015-01-02
+==================
+
+  * Fix potential open redirect when mounted at root
+
+1.7.1 / 2014-10-22
+==================
+
+  * deps: send@0.10.1
+    - deps: on-finished@~2.1.1
+
+1.7.0 / 2014-10-15
+==================
+
+  * deps: send@0.10.0
+    - deps: debug@~2.1.0
+    - deps: depd@~1.0.0
+    - deps: etag@~1.5.0
+
+1.6.5 / 2015-02-04
+==================
+
+  * Fix potential open redirect when mounted at root
+    - Back-ported from v1.7.2
+
+1.6.4 / 2014-10-08
+==================
+
+  * Fix redirect loop when index file serving disabled
+
+1.6.3 / 2014-09-24
+==================
+
+  * deps: send@0.9.3
+    - deps: etag@~1.4.0
+
+1.6.2 / 2014-09-15
+==================
+
+  * deps: send@0.9.2
+    - deps: depd@0.4.5
+    - deps: etag@~1.3.1
+    - deps: range-parser@~1.0.2
+
+1.6.1 / 2014-09-07
+==================
+
+  * deps: send@0.9.1
+    - deps: fresh@0.2.4
+
+1.6.0 / 2014-09-07
+==================
+
+  * deps: send@0.9.0
+    - Add `lastModified` option
+    - Use `etag` to generate `ETag` header
+    - deps: debug@~2.0.0
+
+1.5.4 / 2014-09-04
+==================
+
+  * deps: send@0.8.5
+    - Fix a path traversal issue when using `root`
+    - Fix malicious path detection for empty string path
+
+1.5.3 / 2014-08-17
+==================
+
+  * deps: send@0.8.3
+
+1.5.2 / 2014-08-14
+==================
+
+  * deps: send@0.8.2
+    - Work around `fd` leak in Node.js 0.10 for `fs.ReadStream`
+
+1.5.1 / 2014-08-09
+==================
+
+  * Fix parsing of weird `req.originalUrl` values
+  * deps: parseurl@~1.3.0
+  * deps: utils-merge@1.0.0
+
+1.5.0 / 2014-08-05
+==================
+
+  * deps: send@0.8.1
+    - Add `extensions` option
+
+1.4.4 / 2014-08-04
+==================
+
+  * deps: send@0.7.4
+    - Fix serving index files without root dir
+
+1.4.3 / 2014-07-29
+==================
+
+  * deps: send@0.7.3
+    - Fix incorrect 403 on Windows and Node.js 0.11
+
+1.4.2 / 2014-07-27
+==================
+
+  * deps: send@0.7.2
+    - deps: depd@0.4.4
+
+1.4.1 / 2014-07-26
+==================
+
+  * deps: send@0.7.1
+    - deps: depd@0.4.3
+
+1.4.0 / 2014-07-21
+==================
+
+  * deps: parseurl@~1.2.0
+    - Cache URLs based on original value
+    - Remove no-longer-needed URL mis-parse work-around
+    - Simplify the "fast-path" `RegExp`
+  * deps: send@0.7.0
+    - Add `dotfiles` option
+    - deps: debug@1.0.4
+    - deps: depd@0.4.2
+
+1.3.2 / 2014-07-11
+==================
+
+  * deps: send@0.6.0
+    - Cap `maxAge` value to 1 year
+    - deps: debug@1.0.3
+
+1.3.1 / 2014-07-09
+==================
+
+  * deps: parseurl@~1.1.3
+    - faster parsing of href-only URLs
+
+1.3.0 / 2014-06-28
+==================
+
+  * Add `setHeaders` option
+  * Include HTML link in redirect response
+  * deps: send@0.5.0
+    - Accept string for `maxAge` (converted by `ms`)
+
+1.2.3 / 2014-06-11
+==================
+
+  * deps: send@0.4.3
+    - Do not throw un-catchable error on file open race condition
+    - Use `escape-html` for HTML escaping
+    - deps: debug@1.0.2
+    - deps: finished@1.2.2
+    - deps: fresh@0.2.2
+
+1.2.2 / 2014-06-09
+==================
+
+  * deps: send@0.4.2
+    - fix "event emitter leak" warnings
+    - deps: debug@1.0.1
+    - deps: finished@1.2.1
+
+1.2.1 / 2014-06-02
+==================
+
+  * use `escape-html` for escaping
+  * deps: send@0.4.1
+    - Send `max-age` in `Cache-Control` in correct format
+
+1.2.0 / 2014-05-29
+==================
+
+  * deps: send@0.4.0
+    - Calculate ETag with md5 for reduced collisions
+    - Fix wrong behavior when index file matches directory
+    - Ignore stream errors after request ends
+    - Skip directories in index file search
+    - deps: debug@0.8.1
+
+1.1.0 / 2014-04-24
+==================
+
+  * Accept options directly to `send` module
+  * deps: send@0.3.0
+
+1.0.4 / 2014-04-07
+==================
+
+  * Resolve relative paths at middleware setup
+  * Use parseurl to parse the URL from request
+
+1.0.3 / 2014-03-20
+==================
+
+  * Do not rely on connect-like environments
+
+1.0.2 / 2014-03-06
+==================
+
+  * deps: send@0.2.0
+
+1.0.1 / 2014-03-05
+==================
+
+  * Add mime export for back-compat
+
+1.0.0 / 2014-03-05
+==================
+
+  * Genesis from `connect`
diff --git a/backend/node_modules/serve-static/LICENSE b/backend/node_modules/serve-static/LICENSE
new file mode 100644
index 0000000..cbe62e8
--- /dev/null
+++ b/backend/node_modules/serve-static/LICENSE
@@ -0,0 +1,25 @@
+(The MIT License)
+
+Copyright (c) 2010 Sencha Inc.
+Copyright (c) 2011 LearnBoost
+Copyright (c) 2011 TJ Holowaychuk
+Copyright (c) 2014-2016 Douglas Christopher Wilson
+
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of this software and associated documentation files (the
+'Software'), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sublicense, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to
+the following conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
diff --git a/backend/node_modules/serve-static/README.md b/backend/node_modules/serve-static/README.md
new file mode 100644
index 0000000..70f01c3
--- /dev/null
+++ b/backend/node_modules/serve-static/README.md
@@ -0,0 +1,253 @@
+# serve-static
+
+[![NPM Version][npm-version-image]][npm-url]
+[![NPM Downloads][npm-downloads-image]][npm-url]
+[![CI][github-actions-ci-image]][github-actions-ci-url]
+[![Test Coverage][coveralls-image]][coveralls-url]
+
+## Install
+
+This is a [Node.js](https://nodejs.org/en/) module available through the
+[npm registry](https://www.npmjs.com/). Installation is done using the
+[`npm install` command](https://docs.npmjs.com/getting-started/installing-npm-packages-locally):
+
+```sh
+$ npm install serve-static
+```
+
+## API
+
+```js
+var serveStatic = require('serve-static')
+```
+
+### serveStatic(root, options)
+
+Create a new middleware function to serve files from within a given root
+directory. The file to serve will be determined by combining `req.url`
+with the provided root directory. When a file is not found, instead of
+sending a 404 response, this module will instead call `next()` to move on
+to the next middleware, allowing for stacking and fall-backs.
+
+#### Options
+
+##### acceptRanges
+
+Enable or disable accepting ranged requests, defaults to true.
+Disabling this will not send `Accept-Ranges` and ignore the contents
+of the `Range` request header.
+
+##### cacheControl
+
+Enable or disable setting `Cache-Control` response header, defaults to
+true. Disabling this will ignore the `immutable` and `maxAge` options.
+
+##### dotfiles
+
+Set how "dotfiles" are treated when encountered. A dotfile is a file
+or directory that begins with a dot ("."). Note this check is done on
+the path itself without checking if the path actually exists on the
+disk. If `root` is specified, only the dotfiles above the root are
+checked (i.e. the root itself can be within a dotfile when set
+to "deny").
+
+  - `'allow'` No special treatment for dotfiles.
+  - `'deny'` Deny a request for a dotfile and 403/`next()`.
+  - `'ignore'` Pretend like the dotfile does not exist and 404/`next()`.
+
+The default value is `'ignore'`.
+
+##### etag
+
+Enable or disable etag generation, defaults to true.
+
+##### extensions
+
+Set file extension fallbacks. When set, if a file is not found, the given
+extensions will be added to the file name and search for. The first that
+exists will be served. Example: `['html', 'htm']`.
+
+The default value is `false`.
+
+##### fallthrough
+
+Set the middleware to have client errors fall-through as just unhandled
+requests, otherwise forward a client error. The difference is that client
+errors like a bad request or a request to a non-existent file will cause
+this middleware to simply `next()` to your next middleware when this value
+is `true`. When this value is `false`, these errors (even 404s), will invoke
+`next(err)`.
+
+Typically `true` is desired such that multiple physical directories can be
+mapped to the same web address or for routes to fill in non-existent files.
+
+The value `false` can be used if this middleware is mounted at a path that
+is designed to be strictly a single file system directory, which allows for
+short-circuiting 404s for less overhead. This middleware will also reply to
+all methods.
+
+The default value is `true`.
+
+##### immutable
+
+Enable or disable the `immutable` directive in the `Cache-Control` response
+header, defaults to `false`. If set to `true`, the `maxAge` option should
+also be specified to enable caching. The `immutable` directive will prevent
+supported clients from making conditional requests during the life of the
+`maxAge` option to check if the file has changed.
+
+##### index
+
+By default this module will send "index.html" files in response to a request
+on a directory. To disable this set `false` or to supply a new index pass a
+string or an array in preferred order.
+
+##### lastModified
+
+Enable or disable `Last-Modified` header, defaults to true. Uses the file
+system's last modified value.
+
+##### maxAge
+
+Provide a max-age in milliseconds for http caching, defaults to 0. This
+can also be a string accepted by the [ms](https://www.npmjs.org/package/ms#readme)
+module.
+
+##### redirect
+
+Redirect to trailing "/" when the pathname is a dir. Defaults to `true`.
+
+##### setHeaders
+
+Function to set custom headers on response. Alterations to the headers need to
+occur synchronously. The function is called as `fn(res, path, stat)`, where
+the arguments are:
+
+  - `res` the response object
+  - `path` the file path that is being sent
+  - `stat` the stat object of the file that is being sent
+
+## Examples
+
+### Serve files with vanilla node.js http server
+
+```js
+var finalhandler = require('finalhandler')
+var http = require('http')
+var serveStatic = require('serve-static')
+
+// Serve up public/ftp folder
+var serve = serveStatic('public/ftp', { index: ['index.html', 'index.htm'] })
+
+// Create server
+var server = http.createServer(function onRequest (req, res) {
+  serve(req, res, finalhandler(req, res))
+})
+
+// Listen
+server.listen(3000)
+```
+
+### Serve all files as downloads
+
+```js
+var contentDisposition = require('content-disposition')
+var finalhandler = require('finalhandler')
+var http = require('http')
+var serveStatic = require('serve-static')
+
+// Serve up public/ftp folder
+var serve = serveStatic('public/ftp', {
+  index: false,
+  setHeaders: setHeaders
+})
+
+// Set header to force download
+function setHeaders (res, path) {
+  res.setHeader('Content-Disposition', contentDisposition(path))
+}
+
+// Create server
+var server = http.createServer(function onRequest (req, res) {
+  serve(req, res, finalhandler(req, res))
+})
+
+// Listen
+server.listen(3000)
+```
+
+### Serving using express
+
+#### Simple
+
+This is a simple example of using Express.
+
+```js
+var express = require('express')
+var serveStatic = require('serve-static')
+
+var app = express()
+
+app.use(serveStatic('public/ftp', { index: ['default.html', 'default.htm'] }))
+app.listen(3000)
+```
+
+#### Multiple roots
+
+This example shows a simple way to search through multiple directories.
+Files are searched for in `public-optimized/` first, then `public/` second
+as a fallback.
+
+```js
+var express = require('express')
+var path = require('path')
+var serveStatic = require('serve-static')
+
+var app = express()
+
+app.use(serveStatic(path.join(__dirname, 'public-optimized')))
+app.use(serveStatic(path.join(__dirname, 'public')))
+app.listen(3000)
+```
+
+#### Different settings for paths
+
+This example shows how to set a different max age depending on the served
+file. In this example, HTML files are not cached, while everything else
+is for 1 day.
+
+```js
+var express = require('express')
+var path = require('path')
+var serveStatic = require('serve-static')
+
+var app = express()
+
+app.use(serveStatic(path.join(__dirname, 'public'), {
+  maxAge: '1d',
+  setHeaders: setCustomCacheControl
+}))
+
+app.listen(3000)
+
+function setCustomCacheControl (res, file) {
+  if (path.extname(file) === '.html') {
+    // Custom Cache-Control for HTML files
+    res.setHeader('Cache-Control', 'public, max-age=0')
+  }
+}
+```
+
+## License
+
+[MIT](LICENSE)
+
+[coveralls-image]: https://badgen.net/coveralls/c/github/expressjs/serve-static/master
+[coveralls-url]: https://coveralls.io/r/expressjs/serve-static?branch=master
+[github-actions-ci-image]: https://badgen.net/github/checks/expressjs/serve-static/master?label=linux
+[github-actions-ci-url]: https://github.com/expressjs/serve-static/actions/workflows/ci.yml
+[node-image]: https://badgen.net/npm/node/serve-static
+[node-url]: https://nodejs.org/en/download/
+[npm-downloads-image]: https://badgen.net/npm/dm/serve-static
+[npm-url]: https://npmjs.org/package/serve-static
+[npm-version-image]: https://badgen.net/npm/v/serve-static
diff --git a/backend/node_modules/serve-static/index.js b/backend/node_modules/serve-static/index.js
new file mode 100644
index 0000000..1bee463
--- /dev/null
+++ b/backend/node_modules/serve-static/index.js
@@ -0,0 +1,208 @@
+/*!
+ * serve-static
+ * Copyright(c) 2010 Sencha Inc.
+ * Copyright(c) 2011 TJ Holowaychuk
+ * Copyright(c) 2014-2016 Douglas Christopher Wilson
+ * MIT Licensed
+ */
+
+'use strict'
+
+/**
+ * Module dependencies.
+ * @private
+ */
+
+var encodeUrl = require('encodeurl')
+var escapeHtml = require('escape-html')
+var parseUrl = require('parseurl')
+var resolve = require('path').resolve
+var send = require('send')
+var url = require('url')
+
+/**
+ * Module exports.
+ * @public
+ */
+
+module.exports = serveStatic
+
+/**
+ * @param {string} root
+ * @param {object} [options]
+ * @return {function}
+ * @public
+ */
+
+function serveStatic (root, options) {
+  if (!root) {
+    throw new TypeError('root path required')
+  }
+
+  if (typeof root !== 'string') {
+    throw new TypeError('root path must be a string')
+  }
+
+  // copy options object
+  var opts = Object.create(options || null)
+
+  // fall-though
+  var fallthrough = opts.fallthrough !== false
+
+  // default redirect
+  var redirect = opts.redirect !== false
+
+  // headers listener
+  var setHeaders = opts.setHeaders
+
+  if (setHeaders && typeof setHeaders !== 'function') {
+    throw new TypeError('option setHeaders must be function')
+  }
+
+  // setup options for send
+  opts.maxage = opts.maxage || opts.maxAge || 0
+  opts.root = resolve(root)
+
+  // construct directory listener
+  var onDirectory = redirect
+    ? createRedirectDirectoryListener()
+    : createNotFoundDirectoryListener()
+
+  return function serveStatic (req, res, next) {
+    if (req.method !== 'GET' && req.method !== 'HEAD') {
+      if (fallthrough) {
+        return next()
+      }
+
+      // method not allowed
+      res.statusCode = 405
+      res.setHeader('Allow', 'GET, HEAD')
+      res.setHeader('Content-Length', '0')
+      res.end()
+      return
+    }
+
+    var forwardError = !fallthrough
+    var originalUrl = parseUrl.original(req)
+    var path = parseUrl(req).pathname
+
+    // make sure redirect occurs at mount
+    if (path === '/' && originalUrl.pathname.substr(-1) !== '/') {
+      path = ''
+    }
+
+    // create send stream
+    var stream = send(req, path, opts)
+
+    // add directory handler
+    stream.on('directory', onDirectory)
+
+    // add headers listener
+    if (setHeaders) {
+      stream.on('headers', setHeaders)
+    }
+
+    // add file listener for fallthrough
+    if (fallthrough) {
+      stream.on('file', function onFile () {
+        // once file is determined, always forward error
+        forwardError = true
+      })
+    }
+
+    // forward errors
+    stream.on('error', function error (err) {
+      if (forwardError || !(err.statusCode < 500)) {
+        next(err)
+        return
+      }
+
+      next()
+    })
+
+    // pipe
+    stream.pipe(res)
+  }
+}
+
+/**
+ * Collapse all leading slashes into a single slash
+ * @private
+ */
+function collapseLeadingSlashes (str) {
+  for (var i = 0; i < str.length; i++) {
+    if (str.charCodeAt(i) !== 0x2f /* / */) {
+      break
+    }
+  }
+
+  return i > 1
+    ? '/' + str.substr(i)
+    : str
+}
+
+/**
+ * Create a minimal HTML document.
+ *
+ * @param {string} title
+ * @param {string} body
+ * @private
+ */
+
+function createHtmlDocument (title, body) {
+  return '<!DOCTYPE html>\n' +
+    '<html lang="en">\n' +
+    '<head>\n' +
+    '<meta charset="utf-8">\n' +
+    '<title>' + title + '</title>\n' +
+    '</head>\n' +
+    '<body>\n' +
+    '<pre>' + body + '</pre>\n' +
+    '</body>\n' +
+    '</html>\n'
+}
+
+/**
+ * Create a directory listener that just 404s.
+ * @private
+ */
+
+function createNotFoundDirectoryListener () {
+  return function notFound () {
+    this.error(404)
+  }
+}
+
+/**
+ * Create a directory listener that performs a redirect.
+ * @private
+ */
+
+function createRedirectDirectoryListener () {
+  return function redirect (res) {
+    if (this.hasTrailingSlash()) {
+      this.error(404)
+      return
+    }
+
+    // get original URL
+    var originalUrl = parseUrl.original(this.req)
+
+    // append trailing slash
+    originalUrl.path = null
+    originalUrl.pathname = collapseLeadingSlashes(originalUrl.pathname + '/')
+
+    // reformat the URL
+    var loc = encodeUrl(url.format(originalUrl))
+    var doc = createHtmlDocument('Redirecting', 'Redirecting to ' + escapeHtml(loc))
+
+    // send redirect response
+    res.statusCode = 301
+    res.setHeader('Content-Type', 'text/html; charset=UTF-8')
+    res.setHeader('Content-Length', Buffer.byteLength(doc))
+    res.setHeader('Content-Security-Policy', "default-src 'none'")
+    res.setHeader('X-Content-Type-Options', 'nosniff')
+    res.setHeader('Location', loc)
+    res.end(doc)
+  }
+}
diff --git a/backend/node_modules/serve-static/package.json b/backend/node_modules/serve-static/package.json
new file mode 100644
index 0000000..38d3365
--- /dev/null
+++ b/backend/node_modules/serve-static/package.json
@@ -0,0 +1,41 @@
+{
+  "name": "serve-static",
+  "description": "Serve static files",
+  "version": "2.2.0",
+  "author": "Douglas Christopher Wilson <doug@somethingdoug.com>",
+  "license": "MIT",
+  "repository": "expressjs/serve-static",
+  "dependencies": {
+    "encodeurl": "^2.0.0",
+    "escape-html": "^1.0.3",
+    "parseurl": "^1.3.3",
+    "send": "^1.2.0"
+  },
+  "devDependencies": {
+    "eslint": "7.32.0",
+    "eslint-config-standard": "14.1.1",
+    "eslint-plugin-import": "2.25.4",
+    "eslint-plugin-markdown": "2.2.1",
+    "eslint-plugin-node": "11.1.0",
+    "eslint-plugin-promise": "5.2.0",
+    "eslint-plugin-standard": "4.1.0",
+    "mocha": "^10.7.0",
+    "nyc": "^17.0.0",
+    "supertest": "^6.3.4"
+  },
+  "files": [
+    "LICENSE",
+    "HISTORY.md",
+    "index.js"
+  ],
+  "engines": {
+    "node": ">= 18"
+  },
+  "scripts": {
+    "lint": "eslint .",
+    "test": "mocha --reporter spec --bail --check-leaks test/",
+    "test-ci": "nyc --reporter=lcov --reporter=text npm test",
+    "test-cov": "nyc --reporter=html --reporter=text npm test",
+    "version": "node scripts/version-history.js && git add HISTORY.md"
+  }
+}
diff --git a/backend/node_modules/setprototypeof/LICENSE b/backend/node_modules/setprototypeof/LICENSE
new file mode 100644
index 0000000..61afa2f
--- /dev/null
+++ b/backend/node_modules/setprototypeof/LICENSE
@@ -0,0 +1,13 @@
+Copyright (c) 2015, Wes Todd
+
+Permission to use, copy, modify, and/or distribute this software for any
+purpose with or without fee is hereby granted, provided that the above
+copyright notice and this permission notice appear in all copies.
+
+THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
+SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
+OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
+CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
diff --git a/backend/node_modules/setprototypeof/README.md b/backend/node_modules/setprototypeof/README.md
new file mode 100644
index 0000000..791eeff
--- /dev/null
+++ b/backend/node_modules/setprototypeof/README.md
@@ -0,0 +1,31 @@
+# Polyfill for `Object.setPrototypeOf`
+
+[![NPM Version](https://img.shields.io/npm/v/setprototypeof.svg)](https://npmjs.org/package/setprototypeof)
+[![NPM Downloads](https://img.shields.io/npm/dm/setprototypeof.svg)](https://npmjs.org/package/setprototypeof)
+[![js-standard-style](https://img.shields.io/badge/code%20style-standard-brightgreen.svg)](https://github.com/standard/standard)
+
+A simple cross platform implementation to set the prototype of an instianted object.  Supports all modern browsers and at least back to IE8.
+
+## Usage:
+
+```
+$ npm install --save setprototypeof
+```
+
+```javascript
+var setPrototypeOf = require('setprototypeof')
+
+var obj = {}
+setPrototypeOf(obj, {
+  foo: function () {
+    return 'bar'
+  }
+})
+obj.foo() // bar
+```
+
+TypeScript is also supported:
+
+```typescript
+import setPrototypeOf from 'setprototypeof'
+```
diff --git a/backend/node_modules/setprototypeof/index.d.ts b/backend/node_modules/setprototypeof/index.d.ts
new file mode 100644
index 0000000..f108ecd
--- /dev/null
+++ b/backend/node_modules/setprototypeof/index.d.ts
@@ -0,0 +1,2 @@
+declare function setPrototypeOf(o: any, proto: object | null): any;
+export = setPrototypeOf;
diff --git a/backend/node_modules/setprototypeof/index.js b/backend/node_modules/setprototypeof/index.js
new file mode 100644
index 0000000..c527055
--- /dev/null
+++ b/backend/node_modules/setprototypeof/index.js
@@ -0,0 +1,17 @@
+'use strict'
+/* eslint no-proto: 0 */
+module.exports = Object.setPrototypeOf || ({ __proto__: [] } instanceof Array ? setProtoOf : mixinProperties)
+
+function setProtoOf (obj, proto) {
+  obj.__proto__ = proto
+  return obj
+}
+
+function mixinProperties (obj, proto) {
+  for (var prop in proto) {
+    if (!Object.prototype.hasOwnProperty.call(obj, prop)) {
+      obj[prop] = proto[prop]
+    }
+  }
+  return obj
+}
diff --git a/backend/node_modules/setprototypeof/package.json b/backend/node_modules/setprototypeof/package.json
new file mode 100644
index 0000000..f20915b
--- /dev/null
+++ b/backend/node_modules/setprototypeof/package.json
@@ -0,0 +1,38 @@
+{
+  "name": "setprototypeof",
+  "version": "1.2.0",
+  "description": "A small polyfill for Object.setprototypeof",
+  "main": "index.js",
+  "typings": "index.d.ts",
+  "scripts": {
+    "test": "standard && mocha",
+    "testallversions": "npm run node010 && npm run node4 && npm run node6 && npm run node9 && npm run node11",
+    "testversion": "docker run -it --rm -v $(PWD):/usr/src/app -w /usr/src/app node:${NODE_VER} npm install mocha@${MOCHA_VER:-latest} && npm t",
+    "node010": "NODE_VER=0.10 MOCHA_VER=3 npm run testversion",
+    "node4": "NODE_VER=4 npm run testversion",
+    "node6": "NODE_VER=6 npm run testversion",
+    "node9": "NODE_VER=9 npm run testversion",
+    "node11": "NODE_VER=11 npm run testversion",
+    "prepublishOnly": "npm t",
+    "postpublish": "git push origin && git push origin --tags"
+  },
+  "repository": {
+    "type": "git",
+    "url": "https://github.com/wesleytodd/setprototypeof.git"
+  },
+  "keywords": [
+    "polyfill",
+    "object",
+    "setprototypeof"
+  ],
+  "author": "Wes Todd",
+  "license": "ISC",
+  "bugs": {
+    "url": "https://github.com/wesleytodd/setprototypeof/issues"
+  },
+  "homepage": "https://github.com/wesleytodd/setprototypeof",
+  "devDependencies": {
+    "mocha": "^6.1.4",
+    "standard": "^13.0.2"
+  }
+}
diff --git a/backend/node_modules/setprototypeof/test/index.js b/backend/node_modules/setprototypeof/test/index.js
new file mode 100644
index 0000000..afeb4dd
--- /dev/null
+++ b/backend/node_modules/setprototypeof/test/index.js
@@ -0,0 +1,24 @@
+'use strict'
+/* eslint-env mocha */
+/* eslint no-proto: 0 */
+var assert = require('assert')
+var setPrototypeOf = require('..')
+
+describe('setProtoOf(obj, proto)', function () {
+  it('should merge objects', function () {
+    var obj = { a: 1, b: 2 }
+    var proto = { b: 3, c: 4 }
+    var mergeObj = setPrototypeOf(obj, proto)
+
+    if (Object.getPrototypeOf) {
+      assert.strictEqual(Object.getPrototypeOf(obj), proto)
+    } else if ({ __proto__: [] } instanceof Array) {
+      assert.strictEqual(obj.__proto__, proto)
+    } else {
+      assert.strictEqual(obj.a, 1)
+      assert.strictEqual(obj.b, 2)
+      assert.strictEqual(obj.c, 4)
+    }
+    assert.strictEqual(mergeObj, obj)
+  })
+})
diff --git a/backend/node_modules/side-channel-list/.editorconfig b/backend/node_modules/side-channel-list/.editorconfig
new file mode 100644
index 0000000..72e0eba
--- /dev/null
+++ b/backend/node_modules/side-channel-list/.editorconfig
@@ -0,0 +1,9 @@
+root = true
+
+[*]
+charset = utf-8
+end_of_line = lf
+insert_final_newline = true
+indent_style = tab
+indent_size = 2
+trim_trailing_whitespace = true
diff --git a/backend/node_modules/side-channel-list/.eslintrc b/backend/node_modules/side-channel-list/.eslintrc
new file mode 100644
index 0000000..93978e7
--- /dev/null
+++ b/backend/node_modules/side-channel-list/.eslintrc
@@ -0,0 +1,11 @@
+{
+	"root": true,
+
+	"extends": "@ljharb",
+
+	"rules": {
+		"max-lines-per-function": 0,
+		"multiline-comment-style": 1,
+		"new-cap": [2, { "capIsNewExceptions": ["GetIntrinsic"] }],
+	},
+}
diff --git a/backend/node_modules/side-channel-list/.github/FUNDING.yml b/backend/node_modules/side-channel-list/.github/FUNDING.yml
new file mode 100644
index 0000000..eaff735
--- /dev/null
+++ b/backend/node_modules/side-channel-list/.github/FUNDING.yml
@@ -0,0 +1,12 @@
+# These are supported funding model platforms
+
+github: [ljharb]
+patreon: # Replace with a single Patreon username
+open_collective: # Replace with a single Open Collective username
+ko_fi: # Replace with a single Ko-fi username
+tidelift: npm/side-channel-list
+community_bridge: # Replace with a single Community Bridge project-name e.g., cloud-foundry
+liberapay: # Replace with a single Liberapay username
+issuehunt: # Replace with a single IssueHunt username
+otechie: # Replace with a single Otechie username
+custom: # Replace with up to 4 custom sponsorship URLs e.g., ['link1', 'link2']
diff --git a/backend/node_modules/side-channel-list/.nycrc b/backend/node_modules/side-channel-list/.nycrc
new file mode 100644
index 0000000..1826526
--- /dev/null
+++ b/backend/node_modules/side-channel-list/.nycrc
@@ -0,0 +1,13 @@
+{
+	"all": true,
+	"check-coverage": false,
+	"reporter": ["text-summary", "text", "html", "json"],
+	"lines": 86,
+	"statements": 85.93,
+	"functions": 82.43,
+	"branches": 76.06,
+	"exclude": [
+		"coverage",
+		"test"
+	]
+}
diff --git a/backend/node_modules/side-channel-list/CHANGELOG.md b/backend/node_modules/side-channel-list/CHANGELOG.md
new file mode 100644
index 0000000..2ec51b7
--- /dev/null
+++ b/backend/node_modules/side-channel-list/CHANGELOG.md
@@ -0,0 +1,15 @@
+# Changelog
+
+All notable changes to this project will be documented in this file.
+
+The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/)
+and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
+
+## v1.0.0 - 2024-12-10
+
+### Commits
+
+- Initial implementation, tests, readme, types [`5d6baee`](https://github.com/ljharb/side-channel-list/commit/5d6baee5c9054a1238007f5a1dfc109a7a816251)
+- Initial commit [`3ae784c`](https://github.com/ljharb/side-channel-list/commit/3ae784c63a47895fbaeed2a91ab54a8029a7a100)
+- npm init [`07055a4`](https://github.com/ljharb/side-channel-list/commit/07055a4d139895565b199dba5fe2479c1a1b9e28)
+- Only apps should have lockfiles [`9573058`](https://github.com/ljharb/side-channel-list/commit/9573058a47494e2d68f8c6c77b5d7fbe441949c1)
diff --git a/backend/node_modules/side-channel-list/LICENSE b/backend/node_modules/side-channel-list/LICENSE
new file mode 100644
index 0000000..f82f389
--- /dev/null
+++ b/backend/node_modules/side-channel-list/LICENSE
@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2024 Jordan Harband
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
diff --git a/backend/node_modules/side-channel-list/README.md b/backend/node_modules/side-channel-list/README.md
new file mode 100644
index 0000000..d9c7a13
--- /dev/null
+++ b/backend/node_modules/side-channel-list/README.md
@@ -0,0 +1,62 @@
+# side-channel-list <sup>[![Version Badge][npm-version-svg]][package-url]</sup>
+
+[![github actions][actions-image]][actions-url]
+[![coverage][codecov-image]][codecov-url]
+[![License][license-image]][license-url]
+[![Downloads][downloads-image]][downloads-url]
+
+[![npm badge][npm-badge-png]][package-url]
+
+Store information about any JS value in a side channel, using a linked list.
+
+Warning: this implementation will leak memory until you `delete` the `key`.
+Use [`side-channel`](https://npmjs.com/side-channel) for the best available strategy.
+
+## Getting started
+
+```sh
+npm install --save side-channel-list
+```
+
+## Usage/Examples
+
+```js
+const assert = require('assert');
+const getSideChannelList = require('side-channel-list');
+
+const channel = getSideChannelList();
+
+const key = {};
+assert.equal(channel.has(key), false);
+assert.throws(() => channel.assert(key), TypeError);
+
+channel.set(key, 42);
+
+channel.assert(key); // does not throw
+assert.equal(channel.has(key), true);
+assert.equal(channel.get(key), 42);
+
+channel.delete(key);
+assert.equal(channel.has(key), false);
+assert.throws(() => channel.assert(key), TypeError);
+```
+
+## Tests
+
+Clone the repo, `npm install`, and run `npm test`
+
+[package-url]: https://npmjs.org/package/side-channel-list
+[npm-version-svg]: https://versionbadg.es/ljharb/side-channel-list.svg
+[deps-svg]: https://david-dm.org/ljharb/side-channel-list.svg
+[deps-url]: https://david-dm.org/ljharb/side-channel-list
+[dev-deps-svg]: https://david-dm.org/ljharb/side-channel-list/dev-status.svg
+[dev-deps-url]: https://david-dm.org/ljharb/side-channel-list#info=devDependencies
+[npm-badge-png]: https://nodei.co/npm/side-channel-list.png?downloads=true&stars=true
+[license-image]: https://img.shields.io/npm/l/side-channel-list.svg
+[license-url]: LICENSE
+[downloads-image]: https://img.shields.io/npm/dm/side-channel-list.svg
+[downloads-url]: https://npm-stat.com/charts.html?package=side-channel-list
+[codecov-image]: https://codecov.io/gh/ljharb/side-channel-list/branch/main/graphs/badge.svg
+[codecov-url]: https://app.codecov.io/gh/ljharb/side-channel-list/
+[actions-image]: https://img.shields.io/endpoint?url=https://github-actions-badge-u3jn4tfpocch.runkit.sh/ljharb/side-channel-list
+[actions-url]: https://github.com/ljharb/side-channel-list/actions
diff --git a/backend/node_modules/side-channel-list/index.d.ts b/backend/node_modules/side-channel-list/index.d.ts
new file mode 100644
index 0000000..c9cabc8
--- /dev/null
+++ b/backend/node_modules/side-channel-list/index.d.ts
@@ -0,0 +1,13 @@
+declare namespace getSideChannelList {
+	type Channel<K, V> = {
+		assert: (key: K) => void;
+		has: (key: K) => boolean;
+		get: (key: K) => V | undefined;
+		set: (key: K, value: V) => void;
+		delete: (key: K) => boolean;
+	};
+}
+
+declare function getSideChannelList<V, K>(): getSideChannelList.Channel<K, V>;
+
+export = getSideChannelList;
diff --git a/backend/node_modules/side-channel-list/index.js b/backend/node_modules/side-channel-list/index.js
new file mode 100644
index 0000000..8d6f98c
--- /dev/null
+++ b/backend/node_modules/side-channel-list/index.js
@@ -0,0 +1,113 @@
+'use strict';
+
+var inspect = require('object-inspect');
+
+var $TypeError = require('es-errors/type');
+
+/*
+* This function traverses the list returning the node corresponding to the given key.
+*
+* That node is also moved to the head of the list, so that if it's accessed again we don't need to traverse the whole list.
+* By doing so, all the recently used nodes can be accessed relatively quickly.
+*/
+/** @type {import('./list.d.ts').listGetNode} */
+// eslint-disable-next-line consistent-return
+var listGetNode = function (list, key, isDelete) {
+	/** @type {typeof list | NonNullable<(typeof list)['next']>} */
+	var prev = list;
+	/** @type {(typeof list)['next']} */
+	var curr;
+	// eslint-disable-next-line eqeqeq
+	for (; (curr = prev.next) != null; prev = curr) {
+		if (curr.key === key) {
+			prev.next = curr.next;
+			if (!isDelete) {
+				// eslint-disable-next-line no-extra-parens
+				curr.next = /** @type {NonNullable<typeof list.next>} */ (list.next);
+				list.next = curr; // eslint-disable-line no-param-reassign
+			}
+			return curr;
+		}
+	}
+};
+
+/** @type {import('./list.d.ts').listGet} */
+var listGet = function (objects, key) {
+	if (!objects) {
+		return void undefined;
+	}
+	var node = listGetNode(objects, key);
+	return node && node.value;
+};
+/** @type {import('./list.d.ts').listSet} */
+var listSet = function (objects, key, value) {
+	var node = listGetNode(objects, key);
+	if (node) {
+		node.value = value;
+	} else {
+		// Prepend the new node to the beginning of the list
+		objects.next = /** @type {import('./list.d.ts').ListNode<typeof value, typeof key>} */ ({ // eslint-disable-line no-param-reassign, no-extra-parens
+			key: key,
+			next: objects.next,
+			value: value
+		});
+	}
+};
+/** @type {import('./list.d.ts').listHas} */
+var listHas = function (objects, key) {
+	if (!objects) {
+		return false;
+	}
+	return !!listGetNode(objects, key);
+};
+/** @type {import('./list.d.ts').listDelete} */
+// eslint-disable-next-line consistent-return
+var listDelete = function (objects, key) {
+	if (objects) {
+		return listGetNode(objects, key, true);
+	}
+};
+
+/** @type {import('.')} */
+module.exports = function getSideChannelList() {
+	/** @typedef {ReturnType<typeof getSideChannelList>} Channel */
+	/** @typedef {Parameters<Channel['get']>[0]} K */
+	/** @typedef {Parameters<Channel['set']>[1]} V */
+
+	/** @type {import('./list.d.ts').RootNode<V, K> | undefined} */ var $o;
+
+	/** @type {Channel} */
+	var channel = {
+		assert: function (key) {
+			if (!channel.has(key)) {
+				throw new $TypeError('Side channel does not contain ' + inspect(key));
+			}
+		},
+		'delete': function (key) {
+			var root = $o && $o.next;
+			var deletedNode = listDelete($o, key);
+			if (deletedNode && root && root === deletedNode) {
+				$o = void undefined;
+			}
+			return !!deletedNode;
+		},
+		get: function (key) {
+			return listGet($o, key);
+		},
+		has: function (key) {
+			return listHas($o, key);
+		},
+		set: function (key, value) {
+			if (!$o) {
+				// Initialize the linked list as an empty node, so that we don't have to special-case handling of the first node: we can always refer to it as (previous node).next, instead of something like (list).head
+				$o = {
+					next: void undefined
+				};
+			}
+			// eslint-disable-next-line no-extra-parens
+			listSet(/** @type {NonNullable<typeof $o>} */ ($o), key, value);
+		}
+	};
+	// @ts-expect-error TODO: figure out why this is erroring
+	return channel;
+};
diff --git a/backend/node_modules/side-channel-list/list.d.ts b/backend/node_modules/side-channel-list/list.d.ts
new file mode 100644
index 0000000..2c759e2
--- /dev/null
+++ b/backend/node_modules/side-channel-list/list.d.ts
@@ -0,0 +1,14 @@
+type ListNode<T, K> = {
+	key: K;
+	next: undefined | ListNode<T, K>;
+	value: T;
+};
+type RootNode<T, K> = {
+	next: undefined | ListNode<T, K>;
+};
+
+export function listGetNode<T, K>(list: RootNode<T, K>, key: ListNode<T, K>['key'], isDelete?: boolean): ListNode<T, K> | undefined;
+export function listGet<T, K>(objects: undefined | RootNode<T, K>, key: ListNode<T, K>['key']): T | undefined;
+export function listSet<T, K>(objects: RootNode<T, K>, key: ListNode<T, K>['key'], value: T): void;
+export function listHas<T, K>(objects: undefined | RootNode<T, K>, key: ListNode<T, K>['key']): boolean;
+export function listDelete<T, K>(objects: undefined | RootNode<T, K>, key: ListNode<T, K>['key']): ListNode<T, K> | undefined;
diff --git a/backend/node_modules/side-channel-list/package.json b/backend/node_modules/side-channel-list/package.json
new file mode 100644
index 0000000..ba0f5c5
--- /dev/null
+++ b/backend/node_modules/side-channel-list/package.json
@@ -0,0 +1,77 @@
+{
+	"name": "side-channel-list",
+	"version": "1.0.0",
+	"description": "Store information about any JS value in a side channel, using a linked list",
+	"main": "index.js",
+	"exports": {
+		".": "./index.js",
+		"./package.json": "./package.json"
+	},
+	"types": "./index.d.ts",
+	"scripts": {
+		"prepack": "npmignore --auto --commentLines=autogenerated",
+		"prepublishOnly": "safe-publish-latest",
+		"prepublish": "not-in-publish || npm run prepublishOnly",
+		"prelint": "evalmd README.md && eclint check $(git ls-files | xargs find 2> /dev/null | grep -vE 'node_modules|\\.git')",
+		"lint": "eslint --ext=js,mjs .",
+		"postlint": "tsc -p . && attw -P",
+		"pretest": "npm run lint",
+		"tests-only": "nyc tape 'test/**/*.js'",
+		"test": "npm run tests-only",
+		"posttest": "npx npm@'>= 10.2' audit --production",
+		"version": "auto-changelog && git add CHANGELOG.md",
+		"postversion": "auto-changelog && git add CHANGELOG.md && git commit --no-edit --amend && git tag -f \"v$(node -e \"console.log(require('./package.json').version)\")\""
+	},
+	"repository": {
+		"type": "git",
+		"url": "git+https://github.com/ljharb/side-channel-list.git"
+	},
+	"keywords": [],
+	"author": "Jordan Harband <ljharb@gmail.com>",
+	"funding": {
+		"url": "https://github.com/sponsors/ljharb"
+	},
+	"license": "MIT",
+	"bugs": {
+		"url": "https://github.com/ljharb/side-channel-list/issues"
+	},
+	"homepage": "https://github.com/ljharb/side-channel-list#readme",
+	"dependencies": {
+		"es-errors": "^1.3.0",
+		"object-inspect": "^1.13.3"
+	},
+	"devDependencies": {
+		"@arethetypeswrong/cli": "^0.17.1",
+		"@ljharb/eslint-config": "^21.1.1",
+		"@ljharb/tsconfig": "^0.2.2",
+		"@types/object-inspect": "^1.13.0",
+		"@types/tape": "^5.6.5",
+		"auto-changelog": "^2.5.0",
+		"eclint": "^2.8.1",
+		"encoding": "^0.1.13",
+		"eslint": "=8.8.0",
+		"evalmd": "^0.0.19",
+		"in-publish": "^2.0.1",
+		"npmignore": "^0.3.1",
+		"nyc": "^10.3.2",
+		"safe-publish-latest": "^2.0.0",
+		"tape": "^5.9.0",
+		"typescript": "next"
+	},
+	"auto-changelog": {
+		"output": "CHANGELOG.md",
+		"template": "keepachangelog",
+		"unreleased": false,
+		"commitLimit": false,
+		"backfillLimit": false,
+		"hideCredit": true
+	},
+	"publishConfig": {
+		"ignore": [
+			".github/workflows"
+		]
+	},
+	"engines": {
+		"node": ">= 0.4"
+	}
+}
diff --git a/backend/node_modules/side-channel-list/test/index.js b/backend/node_modules/side-channel-list/test/index.js
new file mode 100644
index 0000000..3ad4368
--- /dev/null
+++ b/backend/node_modules/side-channel-list/test/index.js
@@ -0,0 +1,104 @@
+'use strict';
+
+var test = require('tape');
+
+var getSideChannelList = require('../');
+
+test('getSideChannelList', function (t) {
+	t.test('export', function (st) {
+		st.equal(typeof getSideChannelList, 'function', 'is a function');
+
+		st.equal(getSideChannelList.length, 0, 'takes no arguments');
+
+		var channel = getSideChannelList();
+		st.ok(channel, 'is truthy');
+		st.equal(typeof channel, 'object', 'is an object');
+		st.end();
+	});
+
+	t.test('assert', function (st) {
+		var channel = getSideChannelList();
+		st['throws'](
+			function () { channel.assert({}); },
+			TypeError,
+			'nonexistent value throws'
+		);
+
+		var o = {};
+		channel.set(o, 'data');
+		st.doesNotThrow(function () { channel.assert(o); }, 'existent value noops');
+
+		st.end();
+	});
+
+	t.test('has', function (st) {
+		var channel = getSideChannelList();
+		/** @type {unknown[]} */ var o = [];
+
+		st.equal(channel.has(o), false, 'nonexistent value yields false');
+
+		channel.set(o, 'foo');
+		st.equal(channel.has(o), true, 'existent value yields true');
+
+		st.equal(channel.has('abc'), false, 'non object value non existent yields false');
+
+		channel.set('abc', 'foo');
+		st.equal(channel.has('abc'), true, 'non object value that exists yields true');
+
+		st.end();
+	});
+
+	t.test('get', function (st) {
+		var channel = getSideChannelList();
+		var o = {};
+		st.equal(channel.get(o), undefined, 'nonexistent value yields undefined');
+
+		var data = {};
+		channel.set(o, data);
+		st.equal(channel.get(o), data, '"get" yields data set by "set"');
+
+		st.end();
+	});
+
+	t.test('set', function (st) {
+		var channel = getSideChannelList();
+		var o = function () {};
+		st.equal(channel.get(o), undefined, 'value not set');
+
+		channel.set(o, 42);
+		st.equal(channel.get(o), 42, 'value was set');
+
+		channel.set(o, Infinity);
+		st.equal(channel.get(o), Infinity, 'value was set again');
+
+		var o2 = {};
+		channel.set(o2, 17);
+		st.equal(channel.get(o), Infinity, 'o is not modified');
+		st.equal(channel.get(o2), 17, 'o2 is set');
+
+		channel.set(o, 14);
+		st.equal(channel.get(o), 14, 'o is modified');
+		st.equal(channel.get(o2), 17, 'o2 is not modified');
+
+		st.end();
+	});
+
+	t.test('delete', function (st) {
+		var channel = getSideChannelList();
+		var o = {};
+		st.equal(channel['delete']({}), false, 'nonexistent value yields false');
+
+		channel.set(o, 42);
+		st.equal(channel.has(o), true, 'value is set');
+
+		st.equal(channel['delete']({}), false, 'nonexistent value still yields false');
+
+		st.equal(channel['delete'](o), true, 'deleted value yields true');
+
+		st.equal(channel.has(o), false, 'value is no longer set');
+
+		st.end();
+	});
+
+	t.end();
+});
diff --git a/backend/node_modules/side-channel-list/tsconfig.json b/backend/node_modules/side-channel-list/tsconfig.json
new file mode 100644
index 0000000..d9a6668
--- /dev/null
+++ b/backend/node_modules/side-channel-list/tsconfig.json
@@ -0,0 +1,9 @@
+{
+	"extends": "@ljharb/tsconfig",
+	"compilerOptions": {
+		"target": "es2021",
+	},
+	"exclude": [
+		"coverage",
+	],
+}
diff --git a/backend/node_modules/side-channel-map/.editorconfig b/backend/node_modules/side-channel-map/.editorconfig
new file mode 100644
index 0000000..72e0eba
--- /dev/null
+++ b/backend/node_modules/side-channel-map/.editorconfig
@@ -0,0 +1,9 @@
+root = true
+
+[*]
+charset = utf-8
+end_of_line = lf
+insert_final_newline = true
+indent_style = tab
+indent_size = 2
+trim_trailing_whitespace = true
diff --git a/backend/node_modules/side-channel-map/.eslintrc b/backend/node_modules/side-channel-map/.eslintrc
new file mode 100644
index 0000000..93978e7
--- /dev/null
+++ b/backend/node_modules/side-channel-map/.eslintrc
@@ -0,0 +1,11 @@
+{
+	"root": true,
+
+	"extends": "@ljharb",
+
+	"rules": {
+		"max-lines-per-function": 0,
+		"multiline-comment-style": 1,
+		"new-cap": [2, { "capIsNewExceptions": ["GetIntrinsic"] }],
+	},
+}
diff --git a/backend/node_modules/side-channel-map/.github/FUNDING.yml b/backend/node_modules/side-channel-map/.github/FUNDING.yml
new file mode 100644
index 0000000..f2891bd
--- /dev/null
+++ b/backend/node_modules/side-channel-map/.github/FUNDING.yml
@@ -0,0 +1,12 @@
+# These are supported funding model platforms
+
+github: [ljharb]
+patreon: # Replace with a single Patreon username
+open_collective: # Replace with a single Open Collective username
+ko_fi: # Replace with a single Ko-fi username
+tidelift: npm/side-channel-map
+community_bridge: # Replace with a single Community Bridge project-name e.g., cloud-foundry
+liberapay: # Replace with a single Liberapay username
+issuehunt: # Replace with a single IssueHunt username
+otechie: # Replace with a single Otechie username
+custom: # Replace with up to 4 custom sponsorship URLs e.g., ['link1', 'link2']
diff --git a/backend/node_modules/side-channel-map/.nycrc b/backend/node_modules/side-channel-map/.nycrc
new file mode 100644
index 0000000..1826526
--- /dev/null
+++ b/backend/node_modules/side-channel-map/.nycrc
@@ -0,0 +1,13 @@
+{
+	"all": true,
+	"check-coverage": false,
+	"reporter": ["text-summary", "text", "html", "json"],
+	"lines": 86,
+	"statements": 85.93,
+	"functions": 82.43,
+	"branches": 76.06,
+	"exclude": [
+		"coverage",
+		"test"
+	]
+}
diff --git a/backend/node_modules/side-channel-map/CHANGELOG.md b/backend/node_modules/side-channel-map/CHANGELOG.md
new file mode 100644
index 0000000..b6ccea9
--- /dev/null
+++ b/backend/node_modules/side-channel-map/CHANGELOG.md
@@ -0,0 +1,22 @@
+# Changelog
+
+All notable changes to this project will be documented in this file.
+
+The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/)
+and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
+
+## [v1.0.1](https://github.com/ljharb/side-channel-map/compare/v1.0.0...v1.0.1) - 2024-12-10
+
+### Commits
+
+- [Deps] update `call-bound` [`6d05aaa`](https://github.com/ljharb/side-channel-map/commit/6d05aaa4ce5f2be4e7825df433d650696f0ba40f)
+- [types] fix generics ordering [`11c0184`](https://github.com/ljharb/side-channel-map/commit/11c0184132ac11fdc16857e12682e148e5e9ee74)
+
+## v1.0.0 - 2024-12-10
+
+### Commits
+
+- Initial implementation, tests, readme, types [`ad877b4`](https://github.com/ljharb/side-channel-map/commit/ad877b42926d46d63fff76a2bd01d2b4a01959a9)
+- Initial commit [`28f8879`](https://github.com/ljharb/side-channel-map/commit/28f8879c512abe8fcf9b6a4dc7754a0287e5eba4)
+- npm init [`2c9604e`](https://github.com/ljharb/side-channel-map/commit/2c9604e5aa40223e425ea7cea78f8a07697504bd)
+- Only apps should have lockfiles [`5e7ba9c`](https://github.com/ljharb/side-channel-map/commit/5e7ba9cffe3ef42095815adc8ac1255b49bbadf5)
diff --git a/backend/node_modules/side-channel-map/LICENSE b/backend/node_modules/side-channel-map/LICENSE
new file mode 100644
index 0000000..f82f389
--- /dev/null
+++ b/backend/node_modules/side-channel-map/LICENSE
@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2024 Jordan Harband
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
diff --git a/backend/node_modules/side-channel-map/README.md b/backend/node_modules/side-channel-map/README.md
new file mode 100644
index 0000000..8fa6f77
--- /dev/null
+++ b/backend/node_modules/side-channel-map/README.md
@@ -0,0 +1,62 @@
+# side-channel-map <sup>[![Version Badge][npm-version-svg]][package-url]</sup>
+
+[![github actions][actions-image]][actions-url]
+[![coverage][codecov-image]][codecov-url]
+[![License][license-image]][license-url]
+[![Downloads][downloads-image]][downloads-url]
+
+[![npm badge][npm-badge-png]][package-url]
+
+Store information about any JS value in a side channel, using a Map.
+
+Warning: if the `key` is an object, this implementation will leak memory until you `delete` it.
+Use [`side-channel`](https://npmjs.com/side-channel) for the best available strategy.
+
+## Getting started
+
+```sh
+npm install --save side-channel-map
+```
+
+## Usage/Examples
+
+```js
+const assert = require('assert');
+const getSideChannelMap = require('side-channel-map');
+
+const channel = getSideChannelMap();
+
+const key = {};
+assert.equal(channel.has(key), false);
+assert.throws(() => channel.assert(key), TypeError);
+
+channel.set(key, 42);
+
+channel.assert(key); // does not throw
+assert.equal(channel.has(key), true);
+assert.equal(channel.get(key), 42);
+
+channel.delete(key);
+assert.equal(channel.has(key), false);
+assert.throws(() => channel.assert(key), TypeError);
+```
+
+## Tests
+
+Clone the repo, `npm install`, and run `npm test`
+
+[package-url]: https://npmjs.org/package/side-channel-map
+[npm-version-svg]: https://versionbadg.es/ljharb/side-channel-map.svg
+[deps-svg]: https://david-dm.org/ljharb/side-channel-map.svg
+[deps-url]: https://david-dm.org/ljharb/side-channel-map
+[dev-deps-svg]: https://david-dm.org/ljharb/side-channel-map/dev-status.svg
+[dev-deps-url]: https://david-dm.org/ljharb/side-channel-map#info=devDependencies
+[npm-badge-png]: https://nodei.co/npm/side-channel-map.png?downloads=true&stars=true
+[license-image]: https://img.shields.io/npm/l/side-channel-map.svg
+[license-url]: LICENSE
+[downloads-image]: https://img.shields.io/npm/dm/side-channel-map.svg
+[downloads-url]: https://npm-stat.com/charts.html?package=side-channel-map
+[codecov-image]: https://codecov.io/gh/ljharb/side-channel-map/branch/main/graphs/badge.svg
+[codecov-url]: https://app.codecov.io/gh/ljharb/side-channel-map/
+[actions-image]: https://img.shields.io/endpoint?url=https://github-actions-badge-u3jn4tfpocch.runkit.sh/ljharb/side-channel-map
+[actions-url]: https://github.com/ljharb/side-channel-map/actions
diff --git a/backend/node_modules/side-channel-map/index.d.ts b/backend/node_modules/side-channel-map/index.d.ts
new file mode 100644
index 0000000..de33e89
--- /dev/null
+++ b/backend/node_modules/side-channel-map/index.d.ts
@@ -0,0 +1,15 @@
+declare namespace getSideChannelMap {
+	type Channel<K, V> = {
+		assert: (key: K) => void;
+		has: (key: K) => boolean;
+		get: (key: K) => V | undefined;
+		set: (key: K, value: V) => void;
+		delete: (key: K) => boolean;
+	};
+}
+
+declare function getSideChannelMap<K, V>(): getSideChannelMap.Channel<K, V>;
+
+declare const x: false | typeof getSideChannelMap;
+
+export = x;
diff --git a/backend/node_modules/side-channel-map/index.js b/backend/node_modules/side-channel-map/index.js
new file mode 100644
index 0000000..e111100
--- /dev/null
+++ b/backend/node_modules/side-channel-map/index.js
@@ -0,0 +1,68 @@
+'use strict';
+
+var GetIntrinsic = require('get-intrinsic');
+var callBound = require('call-bound');
+var inspect = require('object-inspect');
+
+var $TypeError = require('es-errors/type');
+var $Map = GetIntrinsic('%Map%', true);
+
+/** @type {<K, V>(thisArg: Map<K, V>, key: K) => V} */
+var $mapGet = callBound('Map.prototype.get', true);
+/** @type {<K, V>(thisArg: Map<K, V>, key: K, value: V) => void} */
+var $mapSet = callBound('Map.prototype.set', true);
+/** @type {<K, V>(thisArg: Map<K, V>, key: K) => boolean} */
+var $mapHas = callBound('Map.prototype.has', true);
+/** @type {<K, V>(thisArg: Map<K, V>, key: K) => boolean} */
+var $mapDelete = callBound('Map.prototype.delete', true);
+/** @type {<K, V>(thisArg: Map<K, V>) => number} */
+var $mapSize = callBound('Map.prototype.size', true);
+
+/** @type {import('.')} */
+module.exports = !!$Map && /** @type {Exclude<import('.'), false>} */ function getSideChannelMap() {
+	/** @typedef {ReturnType<typeof getSideChannelMap>} Channel */
+	/** @typedef {Parameters<Channel['get']>[0]} K */
+	/** @typedef {Parameters<Channel['set']>[1]} V */
+
+	/** @type {Map<K, V> | undefined} */ var $m;
+
+	/** @type {Channel} */
+	var channel = {
+		assert: function (key) {
+			if (!channel.has(key)) {
+				throw new $TypeError('Side channel does not contain ' + inspect(key));
+			}
+		},
+		'delete': function (key) {
+			if ($m) {
+				var result = $mapDelete($m, key);
+				if ($mapSize($m) === 0) {
+					$m = void undefined;
+				}
+				return result;
+			}
+			return false;
+		},
+		get: function (key) { // eslint-disable-line consistent-return
+			if ($m) {
+				return $mapGet($m, key);
+			}
+		},
+		has: function (key) {
+			if ($m) {
+				return $mapHas($m, key);
+			}
+			return false;
+		},
+		set: function (key, value) {
+			if (!$m) {
+				// @ts-expect-error TS can't handle narrowing a variable inside a closure
+				$m = new $Map();
+			}
+			$mapSet($m, key, value);
+		}
+	};
+
+	// @ts-expect-error TODO: figure out why TS is erroring here
+	return channel;
+};
diff --git a/backend/node_modules/side-channel-map/package.json b/backend/node_modules/side-channel-map/package.json
new file mode 100644
index 0000000..18e8080
--- /dev/null
+++ b/backend/node_modules/side-channel-map/package.json
@@ -0,0 +1,80 @@
+{
+	"name": "side-channel-map",
+	"version": "1.0.1",
+	"description": "Store information about any JS value in a side channel, using a Map",
+	"main": "index.js",
+	"exports": {
+		".": "./index.js",
+		"./package.json": "./package.json"
+	},
+	"types": "./index.d.ts",
+	"scripts": {
+		"prepack": "npmignore --auto --commentLines=autogenerated",
+		"prepublishOnly": "safe-publish-latest",
+		"prepublish": "not-in-publish || npm run prepublishOnly",
+		"prelint": "evalmd README.md && eclint check $(git ls-files | xargs find 2> /dev/null | grep -vE 'node_modules|\\.git')",
+		"lint": "eslint --ext=js,mjs .",
+		"postlint": "tsc -p . && attw -P",
+		"pretest": "npm run lint",
+		"tests-only": "nyc tape 'test/**/*.js'",
+		"test": "npm run tests-only",
+		"posttest": "npx npm@'>= 10.2' audit --production",
+		"version": "auto-changelog && git add CHANGELOG.md",
+		"postversion": "auto-changelog && git add CHANGELOG.md && git commit --no-edit --amend && git tag -f \"v$(node -e \"console.log(require('./package.json').version)\")\""
+	},
+	"repository": {
+		"type": "git",
+		"url": "git+https://github.com/ljharb/side-channel-map.git"
+	},
+	"keywords": [],
+	"author": "Jordan Harband <ljharb@gmail.com>",
+	"funding": {
+		"url": "https://github.com/sponsors/ljharb"
+	},
+	"license": "MIT",
+	"bugs": {
+		"url": "https://github.com/ljharb/side-channel-map/issues"
+	},
+	"homepage": "https://github.com/ljharb/side-channel-map#readme",
+	"dependencies": {
+		"call-bound": "^1.0.2",
+		"es-errors": "^1.3.0",
+		"get-intrinsic": "^1.2.5",
+		"object-inspect": "^1.13.3"
+	},
+	"devDependencies": {
+		"@arethetypeswrong/cli": "^0.17.1",
+		"@ljharb/eslint-config": "^21.1.1",
+		"@ljharb/tsconfig": "^0.2.2",
+		"@types/get-intrinsic": "^1.2.3",
+		"@types/object-inspect": "^1.13.0",
+		"@types/tape": "^5.6.5",
+		"auto-changelog": "^2.5.0",
+		"eclint": "^2.8.1",
+		"encoding": "^0.1.13",
+		"eslint": "=8.8.0",
+		"evalmd": "^0.0.19",
+		"in-publish": "^2.0.1",
+		"npmignore": "^0.3.1",
+		"nyc": "^10.3.2",
+		"safe-publish-latest": "^2.0.0",
+		"tape": "^5.9.0",
+		"typescript": "next"
+	},
+	"auto-changelog": {
+		"output": "CHANGELOG.md",
+		"template": "keepachangelog",
+		"unreleased": false,
+		"commitLimit": false,
+		"backfillLimit": false,
+		"hideCredit": true
+	},
+	"publishConfig": {
+		"ignore": [
+			".github/workflows"
+		]
+	},
+	"engines": {
+		"node": ">= 0.4"
+	}
+}
diff --git a/backend/node_modules/side-channel-map/test/index.js b/backend/node_modules/side-channel-map/test/index.js
new file mode 100644
index 0000000..1743323
--- /dev/null
+++ b/backend/node_modules/side-channel-map/test/index.js
@@ -0,0 +1,114 @@
+'use strict';
+
+var test = require('tape');
+
+var getSideChannelMap = require('../');
+
+test('getSideChannelMap', { skip: typeof Map !== 'function' }, function (t) {
+	var getSideChannel = getSideChannelMap || function () {
+		throw new EvalError('should never happen');
+	};
+
+	t.test('export', function (st) {
+		st.equal(typeof getSideChannel, 'function', 'is a function');
+
+		st.equal(getSideChannel.length, 0, 'takes no arguments');
+
+		var channel = getSideChannel();
+		st.ok(channel, 'is truthy');
+		st.equal(typeof channel, 'object', 'is an object');
+		st.end();
+	});
+
+	t.test('assert', function (st) {
+		var channel = getSideChannel();
+		st['throws'](
+			function () { channel.assert({}); },
+			TypeError,
+			'nonexistent value throws'
+		);
+
+		var o = {};
+		channel.set(o, 'data');
+		st.doesNotThrow(function () { channel.assert(o); }, 'existent value noops');
+
+		st.end();
+	});
+
+	t.test('has', function (st) {
+		var channel = getSideChannel();
+		/** @type {unknown[]} */ var o = [];
+
+		st.equal(channel.has(o), false, 'nonexistent value yields false');
+
+		channel.set(o, 'foo');
+		st.equal(channel.has(o), true, 'existent value yields true');
+
+		st.equal(channel.has('abc'), false, 'non object value non existent yields false');
+
+		channel.set('abc', 'foo');
+		st.equal(channel.has('abc'), true, 'non object value that exists yields true');
+
+		st.end();
+	});
+
+	t.test('get', function (st) {
+		var channel = getSideChannel();
+		var o = {};
+		st.equal(channel.get(o), undefined, 'nonexistent value yields undefined');
+
+		var data = {};
+		channel.set(o, data);
+		st.equal(channel.get(o), data, '"get" yields data set by "set"');
+
+		st.end();
+	});
+
+	t.test('set', function (st) {
+		var channel = getSideChannel();
+		var o = function () {};
+		st.equal(channel.get(o), undefined, 'value not set');
+
+		channel.set(o, 42);
+		st.equal(channel.get(o), 42, 'value was set');
+
+		channel.set(o, Infinity);
+		st.equal(channel.get(o), Infinity, 'value was set again');
+
+		var o2 = {};
+		channel.set(o2, 17);
+		st.equal(channel.get(o), Infinity, 'o is not modified');
+		st.equal(channel.get(o2), 17, 'o2 is set');
+
+		channel.set(o, 14);
+		st.equal(channel.get(o), 14, 'o is modified');
+		st.equal(channel.get(o2), 17, 'o2 is not modified');
+
+		st.end();
+	});
+
+	t.test('delete', function (st) {
+		var channel = getSideChannel();
+		var o = {};
+		st.equal(channel['delete']({}), false, 'nonexistent value yields false');
+
+		channel.set(o, 42);
+		st.equal(channel.has(o), true, 'value is set');
+
+		st.equal(channel['delete']({}), false, 'nonexistent value still yields false');
+
+		st.equal(channel['delete'](o), true, 'deleted value yields true');
+
+		st.equal(channel.has(o), false, 'value is no longer set');
+
+		st.end();
+	});
+
+	t.end();
+});
+
+test('getSideChannelMap, no Maps', { skip: typeof Map === 'function' }, function (t) {
+	t.equal(getSideChannelMap, false, 'is false');
+
+	t.end();
+});
diff --git a/backend/node_modules/side-channel-map/tsconfig.json b/backend/node_modules/side-channel-map/tsconfig.json
new file mode 100644
index 0000000..d9a6668
--- /dev/null
+++ b/backend/node_modules/side-channel-map/tsconfig.json
@@ -0,0 +1,9 @@
+{
+	"extends": "@ljharb/tsconfig",
+	"compilerOptions": {
+		"target": "es2021",
+	},
+	"exclude": [
+		"coverage",
+	],
+}
diff --git a/backend/node_modules/side-channel-weakmap/.editorconfig b/backend/node_modules/side-channel-weakmap/.editorconfig
new file mode 100644
index 0000000..72e0eba
--- /dev/null
+++ b/backend/node_modules/side-channel-weakmap/.editorconfig
@@ -0,0 +1,9 @@
+root = true
+
+[*]
+charset = utf-8
+end_of_line = lf
+insert_final_newline = true
+indent_style = tab
+indent_size = 2
+trim_trailing_whitespace = true
diff --git a/backend/node_modules/side-channel-weakmap/.eslintrc b/backend/node_modules/side-channel-weakmap/.eslintrc
new file mode 100644
index 0000000..9b13ad8
--- /dev/null
+++ b/backend/node_modules/side-channel-weakmap/.eslintrc
@@ -0,0 +1,12 @@
+{
+	"root": true,
+
+	"extends": "@ljharb",
+
+	"rules": {
+		"id-length": 0,
+		"max-lines-per-function": 0,
+		"multiline-comment-style": 1,
+		"new-cap": [2, { "capIsNewExceptions": ["GetIntrinsic"] }],
+	},
+}
diff --git a/backend/node_modules/side-channel-weakmap/.github/FUNDING.yml b/backend/node_modules/side-channel-weakmap/.github/FUNDING.yml
new file mode 100644
index 0000000..2ae71cd
--- /dev/null
+++ b/backend/node_modules/side-channel-weakmap/.github/FUNDING.yml
@@ -0,0 +1,12 @@
+# These are supported funding model platforms
+
+github: [ljharb]
+patreon: # Replace with a single Patreon username
+open_collective: # Replace with a single Open Collective username
+ko_fi: # Replace with a single Ko-fi username
+tidelift: npm/side-channel-weakmap
+community_bridge: # Replace with a single Community Bridge project-name e.g., cloud-foundry
+liberapay: # Replace with a single Liberapay username
+issuehunt: # Replace with a single IssueHunt username
+otechie: # Replace with a single Otechie username
+custom: # Replace with up to 4 custom sponsorship URLs e.g., ['link1', 'link2']
diff --git a/backend/node_modules/side-channel-weakmap/.nycrc b/backend/node_modules/side-channel-weakmap/.nycrc
new file mode 100644
index 0000000..1826526
--- /dev/null
+++ b/backend/node_modules/side-channel-weakmap/.nycrc
@@ -0,0 +1,13 @@
+{
+	"all": true,
+	"check-coverage": false,
+	"reporter": ["text-summary", "text", "html", "json"],
+	"lines": 86,
+	"statements": 85.93,
+	"functions": 82.43,
+	"branches": 76.06,
+	"exclude": [
+		"coverage",
+		"test"
+	]
+}
diff --git a/backend/node_modules/side-channel-weakmap/CHANGELOG.md b/backend/node_modules/side-channel-weakmap/CHANGELOG.md
new file mode 100644
index 0000000..aba7ab0
--- /dev/null
+++ b/backend/node_modules/side-channel-weakmap/CHANGELOG.md
@@ -0,0 +1,28 @@
+# Changelog
+
+All notable changes to this project will be documented in this file.
+
+The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/)
+and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
+
+## [v1.0.2](https://github.com/ljharb/side-channel-weakmap/compare/v1.0.1...v1.0.2) - 2024-12-10
+
+### Commits
+
+- [types] fix generics ordering [`1b62e94`](https://github.com/ljharb/side-channel-weakmap/commit/1b62e94a2ad6ed30b640ba73c4a2535836c67289)
+
+## [v1.0.1](https://github.com/ljharb/side-channel-weakmap/compare/v1.0.0...v1.0.1) - 2024-12-10
+
+### Commits
+
+- [types] fix generics ordering [`08a4a5d`](https://github.com/ljharb/side-channel-weakmap/commit/08a4a5dbffedc3ebc79f1aaaf5a3dd6d2196dc1b)
+- [Deps] update `side-channel-map` [`b53fe44`](https://github.com/ljharb/side-channel-weakmap/commit/b53fe447dfdd3a9aebedfd015b384eac17fce916)
+
+## v1.0.0 - 2024-12-10
+
+### Commits
+
+- Initial implementation, tests, readme, types [`53c0fa4`](https://github.com/ljharb/side-channel-weakmap/commit/53c0fa4788435a006f58b9d7b43cb65989ecee49)
+- Initial commit [`a157947`](https://github.com/ljharb/side-channel-weakmap/commit/a157947f26fcaf2c4a941d3a044e76bf67343532)
+- npm init [`54dfc55`](https://github.com/ljharb/side-channel-weakmap/commit/54dfc55bafb16265910d5aad4e743c43aee5bbbb)
+- Only apps should have lockfiles [`0ddd6c7`](https://github.com/ljharb/side-channel-weakmap/commit/0ddd6c7b07fe8ee04d67b2e9f7255af7ce62c07d)
diff --git a/backend/node_modules/side-channel-weakmap/LICENSE b/backend/node_modules/side-channel-weakmap/LICENSE
new file mode 100644
index 0000000..3900dd7
--- /dev/null
+++ b/backend/node_modules/side-channel-weakmap/LICENSE
@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2019 Jordan Harband
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
diff --git a/backend/node_modules/side-channel-weakmap/README.md b/backend/node_modules/side-channel-weakmap/README.md
new file mode 100644
index 0000000..856ee36
--- /dev/null
+++ b/backend/node_modules/side-channel-weakmap/README.md
@@ -0,0 +1,62 @@
+# side-channel-weakmap <sup>[![Version Badge][npm-version-svg]][package-url]</sup>
+
+[![github actions][actions-image]][actions-url]
+[![coverage][codecov-image]][codecov-url]
+[![License][license-image]][license-url]
+[![Downloads][downloads-image]][downloads-url]
+
+[![npm badge][npm-badge-png]][package-url]
+
+Store information about any JS value in a side channel. Uses WeakMap if available.
+
+Warning: this implementation will leak memory until you `delete` the `key`.
+Use [`side-channel`](https://npmjs.com/side-channel) for the best available strategy.
+
+## Getting started
+
+```sh
+npm install --save side-channel-weakmap
+```
+
+## Usage/Examples
+
+```js
+const assert = require('assert');
+const getSideChannelList = require('side-channel-weakmap');
+
+const channel = getSideChannelList();
+
+const key = {};
+assert.equal(channel.has(key), false);
+assert.throws(() => channel.assert(key), TypeError);
+
+channel.set(key, 42);
+
+channel.assert(key); // does not throw
+assert.equal(channel.has(key), true);
+assert.equal(channel.get(key), 42);
+
+channel.delete(key);
+assert.equal(channel.has(key), false);
+assert.throws(() => channel.assert(key), TypeError);
+```
+
+## Tests
+
+Clone the repo, `npm install`, and run `npm test`
+
+[package-url]: https://npmjs.org/package/side-channel-weakmap
+[npm-version-svg]: https://versionbadg.es/ljharb/side-channel-weakmap.svg
+[deps-svg]: https://david-dm.org/ljharb/side-channel-weakmap.svg
+[deps-url]: https://david-dm.org/ljharb/side-channel-weakmap
+[dev-deps-svg]: https://david-dm.org/ljharb/side-channel-weakmap/dev-status.svg
+[dev-deps-url]: https://david-dm.org/ljharb/side-channel-weakmap#info=devDependencies
+[npm-badge-png]: https://nodei.co/npm/side-channel-weakmap.png?downloads=true&stars=true
+[license-image]: https://img.shields.io/npm/l/side-channel-weakmap.svg
+[license-url]: LICENSE
+[downloads-image]: https://img.shields.io/npm/dm/side-channel-weakmap.svg
+[downloads-url]: https://npm-stat.com/charts.html?package=side-channel-weakmap
+[codecov-image]: https://codecov.io/gh/ljharb/side-channel-weakmap/branch/main/graphs/badge.svg
+[codecov-url]: https://app.codecov.io/gh/ljharb/side-channel-weakmap/
+[actions-image]: https://img.shields.io/endpoint?url=https://github-actions-badge-u3jn4tfpocch.runkit.sh/ljharb/side-channel-weakmap
+[actions-url]: https://github.com/ljharb/side-channel-weakmap/actions
diff --git a/backend/node_modules/side-channel-weakmap/index.d.ts b/backend/node_modules/side-channel-weakmap/index.d.ts
new file mode 100644
index 0000000..ce1bc2a
--- /dev/null
+++ b/backend/node_modules/side-channel-weakmap/index.d.ts
@@ -0,0 +1,15 @@
+declare namespace getSideChannelWeakMap {
+	type Channel<K, V> = {
+		assert: (key: K) => void;
+		has: (key: K) => boolean;
+		get: (key: K) => V | undefined;
+		set: (key: K, value: V) => void;
+		delete: (key: K) => boolean;
+	}
+}
+
+declare function getSideChannelWeakMap<K, V>(): getSideChannelWeakMap.Channel<K, V>;
+
+declare const x: false | typeof getSideChannelWeakMap;
+
+export = x;
diff --git a/backend/node_modules/side-channel-weakmap/index.js b/backend/node_modules/side-channel-weakmap/index.js
new file mode 100644
index 0000000..e5b8183
--- /dev/null
+++ b/backend/node_modules/side-channel-weakmap/index.js
@@ -0,0 +1,84 @@
+'use strict';
+
+var GetIntrinsic = require('get-intrinsic');
+var callBound = require('call-bound');
+var inspect = require('object-inspect');
+var getSideChannelMap = require('side-channel-map');
+
+var $TypeError = require('es-errors/type');
+var $WeakMap = GetIntrinsic('%WeakMap%', true);
+
+/** @type {<K extends object, V>(thisArg: WeakMap<K, V>, key: K) => V} */
+var $weakMapGet = callBound('WeakMap.prototype.get', true);
+/** @type {<K extends object, V>(thisArg: WeakMap<K, V>, key: K, value: V) => void} */
+var $weakMapSet = callBound('WeakMap.prototype.set', true);
+/** @type {<K extends object, V>(thisArg: WeakMap<K, V>, key: K) => boolean} */
+var $weakMapHas = callBound('WeakMap.prototype.has', true);
+/** @type {<K extends object, V>(thisArg: WeakMap<K, V>, key: K) => boolean} */
+var $weakMapDelete = callBound('WeakMap.prototype.delete', true);
+
+/** @type {import('.')} */
+module.exports = $WeakMap
+	? /** @type {Exclude<import('.'), false>} */ function getSideChannelWeakMap() {
+		/** @typedef {ReturnType<typeof getSideChannelWeakMap>} Channel */
+		/** @typedef {Parameters<Channel['get']>[0]} K */
+		/** @typedef {Parameters<Channel['set']>[1]} V */
+
+		/** @type {WeakMap<K & object, V> | undefined} */ var $wm;
+		/** @type {Channel | undefined} */ var $m;
+
+		/** @type {Channel} */
+		var channel = {
+			assert: function (key) {
+				if (!channel.has(key)) {
+					throw new $TypeError('Side channel does not contain ' + inspect(key));
+				}
+			},
+			'delete': function (key) {
+				if ($WeakMap && key && (typeof key === 'object' || typeof key === 'function')) {
+					if ($wm) {
+						return $weakMapDelete($wm, key);
+					}
+				} else if (getSideChannelMap) {
+					if ($m) {
+						return $m['delete'](key);
+					}
+				}
+				return false;
+			},
+			get: function (key) {
+				if ($WeakMap && key && (typeof key === 'object' || typeof key === 'function')) {
+					if ($wm) {
+						return $weakMapGet($wm, key);
+					}
+				}
+				return $m && $m.get(key);
+			},
+			has: function (key) {
+				if ($WeakMap && key && (typeof key === 'object' || typeof key === 'function')) {
+					if ($wm) {
+						return $weakMapHas($wm, key);
+					}
+				}
+				return !!$m && $m.has(key);
+			},
+			set: function (key, value) {
+				if ($WeakMap && key && (typeof key === 'object' || typeof key === 'function')) {
+					if (!$wm) {
+						$wm = new $WeakMap();
+					}
+					$weakMapSet($wm, key, value);
+				} else if (getSideChannelMap) {
+					if (!$m) {
+						$m = getSideChannelMap();
+					}
+					// eslint-disable-next-line no-extra-parens
+					/** @type {NonNullable<typeof $m>} */ ($m).set(key, value);
+				}
+			}
+		};
+
+		// @ts-expect-error TODO: figure out why this is erroring
+		return channel;
+	}
+	: getSideChannelMap;
diff --git a/backend/node_modules/side-channel-weakmap/package.json b/backend/node_modules/side-channel-weakmap/package.json
new file mode 100644
index 0000000..9ef6583
--- /dev/null
+++ b/backend/node_modules/side-channel-weakmap/package.json
@@ -0,0 +1,87 @@
+{
+	"name": "side-channel-weakmap",
+	"version": "1.0.2",
+	"description": "Store information about any JS value in a side channel. Uses WeakMap if available.",
+	"main": "index.js",
+	"exports": {
+		".": "./index.js",
+		"./package.json": "./package.json"
+	},
+	"types": "./index.d.ts",
+	"scripts": {
+		"prepack": "npmignore --auto --commentLines=autogenerated",
+		"prepublishOnly": "safe-publish-latest",
+		"prepublish": "not-in-publish || npm run prepublishOnly",
+		"prelint": "eclint check $(git ls-files | xargs find 2> /dev/null | grep -vE 'node_modules|\\.git')",
+		"lint": "eslint --ext=js,mjs .",
+		"postlint": "tsc -p . && attw -P",
+		"pretest": "npm run lint",
+		"tests-only": "nyc tape 'test/**/*.js'",
+		"test": "npm run tests-only",
+		"posttest": "npx npm@'>=10.2' audit --production",
+		"version": "auto-changelog && git add CHANGELOG.md",
+		"postversion": "auto-changelog && git add CHANGELOG.md && git commit --no-edit --amend && git tag -f \"v$(node -e \"console.log(require('./package.json').version)\")\""
+	},
+	"repository": {
+		"type": "git",
+		"url": "git+https://github.com/ljharb/side-channel-weakmap.git"
+	},
+	"keywords": [
+		"weakmap",
+		"map",
+		"side",
+		"channel",
+		"metadata"
+	],
+	"author": "Jordan Harband <ljharb@gmail.com>",
+	"funding": {
+		"url": "https://github.com/sponsors/ljharb"
+	},
+	"license": "MIT",
+	"bugs": {
+		"url": "https://github.com/ljharb/side-channel-weakmap/issues"
+	},
+	"homepage": "https://github.com/ljharb/side-channel-weakmap#readme",
+	"dependencies": {
+		"call-bound": "^1.0.2",
+		"es-errors": "^1.3.0",
+		"get-intrinsic": "^1.2.5",
+		"object-inspect": "^1.13.3",
+		"side-channel-map": "^1.0.1"
+	},
+	"devDependencies": {
+		"@arethetypeswrong/cli": "^0.17.1",
+		"@ljharb/eslint-config": "^21.1.1",
+		"@ljharb/tsconfig": "^0.2.2",
+		"@types/call-bind": "^1.0.5",
+		"@types/get-intrinsic": "^1.2.3",
+		"@types/object-inspect": "^1.13.0",
+		"@types/tape": "^5.6.5",
+		"auto-changelog": "^2.5.0",
+		"eclint": "^2.8.1",
+		"encoding": "^0.1.13",
+		"eslint": "=8.8.0",
+		"in-publish": "^2.0.1",
+		"npmignore": "^0.3.1",
+		"nyc": "^10.3.2",
+		"safe-publish-latest": "^2.0.0",
+		"tape": "^5.9.0",
+		"typescript": "next"
+	},
+	"auto-changelog": {
+		"output": "CHANGELOG.md",
+		"template": "keepachangelog",
+		"unreleased": false,
+		"commitLimit": false,
+		"backfillLimit": false,
+		"hideCredit": true
+	},
+	"publishConfig": {
+		"ignore": [
+			".github/workflows"
+		]
+	},
+	"engines": {
+		"node": ">= 0.4"
+	}
+}
diff --git a/backend/node_modules/side-channel-weakmap/test/index.js b/backend/node_modules/side-channel-weakmap/test/index.js
new file mode 100644
index 0000000..a01248b
--- /dev/null
+++ b/backend/node_modules/side-channel-weakmap/test/index.js
@@ -0,0 +1,114 @@
+'use strict';
+
+var test = require('tape');
+
+var getSideChannelWeakMap = require('../');
+
+test('getSideChannelMap', { skip: typeof WeakMap !== 'function' && typeof Map !== 'function' }, function (t) {
+	var getSideChannel = getSideChannelWeakMap || function () {
+		throw new EvalError('should never happen');
+	};
+
+	t.test('export', function (st) {
+		st.equal(typeof getSideChannel, 'function', 'is a function');
+
+		st.equal(getSideChannel.length, 0, 'takes no arguments');
+
+		var channel = getSideChannel();
+		st.ok(channel, 'is truthy');
+		st.equal(typeof channel, 'object', 'is an object');
+		st.end();
+	});
+
+	t.test('assert', function (st) {
+		var channel = getSideChannel();
+		st['throws'](
+			function () { channel.assert({}); },
+			TypeError,
+			'nonexistent value throws'
+		);
+
+		var o = {};
+		channel.set(o, 'data');
+		st.doesNotThrow(function () { channel.assert(o); }, 'existent value noops');
+
+		st.end();
+	});
+
+	t.test('has', function (st) {
+		var channel = getSideChannel();
+		/** @type {unknown[]} */ var o = [];
+
+		st.equal(channel.has(o), false, 'nonexistent value yields false');
+
+		channel.set(o, 'foo');
+		st.equal(channel.has(o), true, 'existent value yields true');
+
+		st.equal(channel.has('abc'), false, 'non object value non existent yields false');
+
+		channel.set('abc', 'foo');
+		st.equal(channel.has('abc'), true, 'non object value that exists yields true');
+
+		st.end();
+	});
+
+	t.test('get', function (st) {
+		var channel = getSideChannel();
+		var o = {};
+		st.equal(channel.get(o), undefined, 'nonexistent value yields undefined');
+
+		var data = {};
+		channel.set(o, data);
+		st.equal(channel.get(o), data, '"get" yields data set by "set"');
+
+		st.end();
+	});
+
+	t.test('set', function (st) {
+		var channel = getSideChannel();
+		var o = function () {};
+		st.equal(channel.get(o), undefined, 'value not set');
+
+		channel.set(o, 42);
+		st.equal(channel.get(o), 42, 'value was set');
+
+		channel.set(o, Infinity);
+		st.equal(channel.get(o), Infinity, 'value was set again');
+
+		var o2 = {};
+		channel.set(o2, 17);
+		st.equal(channel.get(o), Infinity, 'o is not modified');
+		st.equal(channel.get(o2), 17, 'o2 is set');
+
+		channel.set(o, 14);
+		st.equal(channel.get(o), 14, 'o is modified');
+		st.equal(channel.get(o2), 17, 'o2 is not modified');
+
+		st.end();
+	});
+
+	t.test('delete', function (st) {
+		var channel = getSideChannel();
+		var o = {};
+		st.equal(channel['delete']({}), false, 'nonexistent value yields false');
+
+		channel.set(o, 42);
+		st.equal(channel.has(o), true, 'value is set');
+
+		st.equal(channel['delete']({}), false, 'nonexistent value still yields false');
+
+		st.equal(channel['delete'](o), true, 'deleted value yields true');
+
+		st.equal(channel.has(o), false, 'value is no longer set');
+
+		st.end();
+	});
+
+	t.end();
+});
+
+test('getSideChannelMap, no WeakMaps and/or Maps', { skip: typeof WeakMap === 'function' || typeof Map === 'function' }, function (t) {
+	t.equal(getSideChannelWeakMap, false, 'is false');
+
+	t.end();
+});
diff --git a/backend/node_modules/side-channel-weakmap/tsconfig.json b/backend/node_modules/side-channel-weakmap/tsconfig.json
new file mode 100644
index 0000000..d9a6668
--- /dev/null
+++ b/backend/node_modules/side-channel-weakmap/tsconfig.json
@@ -0,0 +1,9 @@
+{
+	"extends": "@ljharb/tsconfig",
+	"compilerOptions": {
+		"target": "es2021",
+	},
+	"exclude": [
+		"coverage",
+	],
+}
diff --git a/backend/node_modules/side-channel/.editorconfig b/backend/node_modules/side-channel/.editorconfig
new file mode 100644
index 0000000..72e0eba
--- /dev/null
+++ b/backend/node_modules/side-channel/.editorconfig
@@ -0,0 +1,9 @@
+root = true
+
+[*]
+charset = utf-8
+end_of_line = lf
+insert_final_newline = true
+indent_style = tab
+indent_size = 2
+trim_trailing_whitespace = true
diff --git a/backend/node_modules/side-channel/.eslintrc b/backend/node_modules/side-channel/.eslintrc
new file mode 100644
index 0000000..9b13ad8
--- /dev/null
+++ b/backend/node_modules/side-channel/.eslintrc
@@ -0,0 +1,12 @@
+{
+	"root": true,
+
+	"extends": "@ljharb",
+
+	"rules": {
+		"id-length": 0,
+		"max-lines-per-function": 0,
+		"multiline-comment-style": 1,
+		"new-cap": [2, { "capIsNewExceptions": ["GetIntrinsic"] }],
+	},
+}
diff --git a/backend/node_modules/side-channel/.github/FUNDING.yml b/backend/node_modules/side-channel/.github/FUNDING.yml
new file mode 100644
index 0000000..2a94840
--- /dev/null
+++ b/backend/node_modules/side-channel/.github/FUNDING.yml
@@ -0,0 +1,12 @@
+# These are supported funding model platforms
+
+github: [ljharb]
+patreon: # Replace with a single Patreon username
+open_collective: # Replace with a single Open Collective username
+ko_fi: # Replace with a single Ko-fi username
+tidelift: npm/side-channel
+community_bridge: # Replace with a single Community Bridge project-name e.g., cloud-foundry
+liberapay: # Replace with a single Liberapay username
+issuehunt: # Replace with a single IssueHunt username
+otechie: # Replace with a single Otechie username
+custom: # Replace with up to 4 custom sponsorship URLs e.g., ['link1', 'link2']
diff --git a/backend/node_modules/side-channel/.nycrc b/backend/node_modules/side-channel/.nycrc
new file mode 100644
index 0000000..1826526
--- /dev/null
+++ b/backend/node_modules/side-channel/.nycrc
@@ -0,0 +1,13 @@
+{
+	"all": true,
+	"check-coverage": false,
+	"reporter": ["text-summary", "text", "html", "json"],
+	"lines": 86,
+	"statements": 85.93,
+	"functions": 82.43,
+	"branches": 76.06,
+	"exclude": [
+		"coverage",
+		"test"
+	]
+}
diff --git a/backend/node_modules/side-channel/CHANGELOG.md b/backend/node_modules/side-channel/CHANGELOG.md
new file mode 100644
index 0000000..58e378c
--- /dev/null
+++ b/backend/node_modules/side-channel/CHANGELOG.md
@@ -0,0 +1,110 @@
+# Changelog
+
+All notable changes to this project will be documented in this file.
+
+The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/)
+and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
+
+## [v1.1.0](https://github.com/ljharb/side-channel/compare/v1.0.6...v1.1.0) - 2024-12-11
+
+### Commits
+
+- [Refactor] extract implementations to `side-channel-weakmap`, `side-channel-map`, `side-channel-list` [`ada5955`](https://github.com/ljharb/side-channel/commit/ada595549a5c4c6c853756d598846b180941c6da)
+- [New] add `channel.delete` [`c01d2d3`](https://github.com/ljharb/side-channel/commit/c01d2d3fd51dbb1ce6da72ad7916e61bd6172aad)
+- [types] improve types [`0c54356`](https://github.com/ljharb/side-channel/commit/0c5435651417df41b8cc1a5f7cdce8bffae68cde)
+- [readme] add content [`be24868`](https://github.com/ljharb/side-channel/commit/be248682ac294b0e22c883092c45985aa91c490a)
+- [actions] split out node 10-20, and 20+ [`c4488e2`](https://github.com/ljharb/side-channel/commit/c4488e241ef3d49a19fe266ac830a2e644305911)
+- [types] use shared tsconfig [`0e0d57c`](https://github.com/ljharb/side-channel/commit/0e0d57c2ff17c7b45c6cbd43ebcf553edc9e3adc)
+- [Dev Deps] update `@ljharb/eslint-config`, `@ljharb/tsconfig`, `@types/get-intrinsic`, `@types/object-inspect`, `@types/tape`, `auto-changelog`, `tape` [`fb4f622`](https://github.com/ljharb/side-channel/commit/fb4f622e64a99a1e40b6e5cd7691674a9dc429e4)
+- [Deps] update `call-bind`, `get-intrinsic`, `object-inspect` [`b78336b`](https://github.com/ljharb/side-channel/commit/b78336b886172d1b457d414ac9e28de8c5fecc78)
+- [Tests] replace `aud` with `npm audit` [`ee3ab46`](https://github.com/ljharb/side-channel/commit/ee3ab4690d954311c35115651bcfd45edd205aa1)
+- [Dev Deps] add missing peer dep [`c03e21a`](https://github.com/ljharb/side-channel/commit/c03e21a7def3b67cdc15ae22316884fefcb2f6a8)
+
+## [v1.0.6](https://github.com/ljharb/side-channel/compare/v1.0.5...v1.0.6) - 2024-02-29
+
+### Commits
+
+- add types [`9beef66`](https://github.com/ljharb/side-channel/commit/9beef6643e6d717ea57bedabf86448123a7dd9e9)
+- [meta] simplify `exports` [`4334cf9`](https://github.com/ljharb/side-channel/commit/4334cf9df654151504c383b62a2f9ebdc8d9d5ac)
+- [Deps] update `call-bind` [`d6043c4`](https://github.com/ljharb/side-channel/commit/d6043c4d8f4d7be9037dd0f0419c7a2e0e39ec6a)
+- [Dev Deps] update `tape` [`6aca376`](https://github.com/ljharb/side-channel/commit/6aca3761868dc8cd5ff7fd9799bf6b95e09a6eb0)
+
+## [v1.0.5](https://github.com/ljharb/side-channel/compare/v1.0.4...v1.0.5) - 2024-02-06
+
+### Commits
+
+- [actions] reuse common workflows [`3d2e1ff`](https://github.com/ljharb/side-channel/commit/3d2e1ffd16dd6eaaf3e40ff57951f840d2d63c04)
+- [meta] use `npmignore` to autogenerate an npmignore file [`04296ea`](https://github.com/ljharb/side-channel/commit/04296ea17d1544b0a5d20fd5bfb31aa4f6513eb9)
+- [meta] add `.editorconfig`; add `eclint` [`130f0a6`](https://github.com/ljharb/side-channel/commit/130f0a6adbc04d385c7456a601d38344dce3d6a9)
+- [Dev Deps] update `eslint`, `@ljharb/eslint-config`, `aud`, `auto-changelog`, `safe-publish-latest`, `tape` [`d480c2f`](https://github.com/ljharb/side-channel/commit/d480c2fbe757489ae9b4275491ffbcc3ac4725e9)
+- [Dev Deps] update `eslint`, `@ljharb/eslint-config`, `aud`, `auto-changelog`, `tape` [`ecbe70e`](https://github.com/ljharb/side-channel/commit/ecbe70e53a418234081a77971fec1fdfae20c841)
+- [actions] update rebase action [`75240b9`](https://github.com/ljharb/side-channel/commit/75240b9963b816e8846400d2287cb68f88c7fba7)
+- [Dev Deps] update `@ljharb/eslint-config`, `aud`, `npmignore`, `tape` [`ae8d281`](https://github.com/ljharb/side-channel/commit/ae8d281572430099109870fd9430d2ca3f320b8d)
+- [Dev Deps] update `@ljharb/eslint-config`, `aud`, `tape` [`7125b88`](https://github.com/ljharb/side-channel/commit/7125b885fd0eacad4fee9b073b72d14065ece278)
+- [Deps] update `call-bind`, `get-intrinsic`, `object-inspect` [`82577c9`](https://github.com/ljharb/side-channel/commit/82577c9796304519139a570f82a317211b5f3b86)
+- [Deps] update `call-bind`, `get-intrinsic`, `object-inspect` [`550aadf`](https://github.com/ljharb/side-channel/commit/550aadf20475a6081fd70304cc54f77259a5c8a8)
+- [Tests] increase coverage [`5130877`](https://github.com/ljharb/side-channel/commit/5130877a7b27c862e64e6d1c12a178b28808859d)
+- [Deps] update `get-intrinsic`, `object-inspect` [`ba0194c`](https://github.com/ljharb/side-channel/commit/ba0194c505b1a8a0427be14cadd5b8a46d4d01b8)
+- [meta] add missing `engines.node` [`985fd24`](https://github.com/ljharb/side-channel/commit/985fd249663cb06617a693a94fe08cad12f5cb70)
+- [Refactor] use `es-errors`, so things that only need those do not need `get-intrinsic` [`40227a8`](https://github.com/ljharb/side-channel/commit/40227a87b01709ad2c0eebf87eb4223a800099b9)
+- [Deps] update `get-intrinsic` [`a989b40`](https://github.com/ljharb/side-channel/commit/a989b4024958737ae7be9fbffdeff2078f33a0fd)
+- [Deps] update `object-inspect` [`aec42d2`](https://github.com/ljharb/side-channel/commit/aec42d2ec541a31aaa02475692c87d489237d9a3)
+
+## [v1.0.4](https://github.com/ljharb/side-channel/compare/v1.0.3...v1.0.4) - 2020-12-29
+
+### Commits
+
+- [Tests] migrate tests to Github Actions [`10909cb`](https://github.com/ljharb/side-channel/commit/10909cbf8ce9c0bf96f604cf13d7ffd5a22c2d40)
+- [Refactor] Use a linked list rather than an array, and move accessed nodes to the beginning [`195613f`](https://github.com/ljharb/side-channel/commit/195613f28b5c1e6072ef0b61b5beebaf2b6a304e)
+- [meta] do not publish github action workflow files [`290ec29`](https://github.com/ljharb/side-channel/commit/290ec29cd21a60585145b4a7237ec55228c52c27)
+- [Tests] run `nyc` on all tests; use `tape` runner [`ea6d030`](https://github.com/ljharb/side-channel/commit/ea6d030ff3fe6be2eca39e859d644c51ecd88869)
+- [actions] add "Allow Edits" workflow [`d464d8f`](https://github.com/ljharb/side-channel/commit/d464d8fe52b5eddf1504a0ed97f0941a90f32c15)
+- [Dev Deps] update `eslint`, `@ljharb/eslint-config`, `aud`, `auto-changelog` [`02daca8`](https://github.com/ljharb/side-channel/commit/02daca87c6809821c97be468d1afa2f5ef447383)
+- [Refactor] use `call-bind` and `get-intrinsic` instead of `es-abstract` [`e09d481`](https://github.com/ljharb/side-channel/commit/e09d481528452ebafa5cdeae1af665c35aa2deee)
+- [Deps] update `object.assign` [`ee83aa8`](https://github.com/ljharb/side-channel/commit/ee83aa81df313b5e46319a63adb05cf0c179079a)
+- [actions] update rebase action to use checkout v2 [`7726b0b`](https://github.com/ljharb/side-channel/commit/7726b0b058b632fccea709f58960871defaaa9d7)
+
+## [v1.0.3](https://github.com/ljharb/side-channel/compare/v1.0.2...v1.0.3) - 2020-08-23
+
+### Commits
+
+- [Dev Deps] update `eslint`, `@ljharb/eslint-config`, `aud`, `auto-changelog`, `tape` [`1f10561`](https://github.com/ljharb/side-channel/commit/1f105611ef3acf32dec8032ae5c0baa5e56bb868)
+- [Deps] update `es-abstract`, `object-inspect` [`bc20159`](https://github.com/ljharb/side-channel/commit/bc201597949a505e37cef9eaf24c7010831e6f03)
+- [Dev Deps] update `@ljharb/eslint-config`, `tape` [`b9b2b22`](https://github.com/ljharb/side-channel/commit/b9b2b225f9e0ea72a6ec2b89348f0bd690bc9ed1)
+- [Dev Deps] update `eslint`, `@ljharb/eslint-config`, `tape` [`7055ab4`](https://github.com/ljharb/side-channel/commit/7055ab4de0860606efd2003674a74f1fe6ebc07e)
+- [Dev Deps] update `auto-changelog`; add `aud` [`d278c37`](https://github.com/ljharb/side-channel/commit/d278c37d08227be4f84aa769fcd919e73feeba40)
+- [actions] switch Automatic Rebase workflow to `pull_request_target` event [`3bcf982`](https://github.com/ljharb/side-channel/commit/3bcf982faa122745b39c33ce83d32fdf003741c6)
+- [Tests] only audit prod deps [`18d01c4`](https://github.com/ljharb/side-channel/commit/18d01c4015b82a3d75044c4d5ba7917b2eac01ec)
+- [Deps] update `es-abstract` [`6ab096d`](https://github.com/ljharb/side-channel/commit/6ab096d9de2b482cf5e0717e34e212f5b2b9bc9a)
+- [Dev Deps] update `tape` [`9dc174c`](https://github.com/ljharb/side-channel/commit/9dc174cc651dfd300b4b72da936a0a7eda5f9452)
+- [Deps] update `es-abstract` [`431d0f0`](https://github.com/ljharb/side-channel/commit/431d0f0ff11fbd2ae6f3115582a356d3a1cfce82)
+- [Deps] update `es-abstract` [`49869fd`](https://github.com/ljharb/side-channel/commit/49869fd323bf4453f0ba515c0fb265cf5ab7b932)
+- [meta] Add package.json to package's exports [`77d9cdc`](https://github.com/ljharb/side-channel/commit/77d9cdceb2a9e47700074f2ae0c0a202e7dac0d4)
+
+## [v1.0.2](https://github.com/ljharb/side-channel/compare/v1.0.1...v1.0.2) - 2019-12-20
+
+### Commits
+
+- [Dev Deps] update `@ljharb/eslint-config`, `tape` [`4a526df`](https://github.com/ljharb/side-channel/commit/4a526df44e4701566ed001ec78546193f818b082)
+- [Deps] update `es-abstract` [`d4f6e62`](https://github.com/ljharb/side-channel/commit/d4f6e629b6fb93a07415db7f30d3c90fd7f264fe)
+
+## [v1.0.1](https://github.com/ljharb/side-channel/compare/v1.0.0...v1.0.1) - 2019-12-01
+
+### Commits
+
+- [Fix] add missing "exports" [`d212907`](https://github.com/ljharb/side-channel/commit/d2129073abf0701a5343bf28aa2145617604dc2e)
+
+## v1.0.0 - 2019-12-01
+
+### Commits
+
+- Initial implementation [`dbebd3a`](https://github.com/ljharb/side-channel/commit/dbebd3a4b5ed64242f9a6810efe7c4214cd8cde4)
+- Initial tests [`73bdefe`](https://github.com/ljharb/side-channel/commit/73bdefe568c9076cf8c0b8719bc2141aec0e19b8)
+- Initial commit [`43c03e1`](https://github.com/ljharb/side-channel/commit/43c03e1c2849ec50a87b7a5cd76238a62b0b8770)
+- npm init [`5c090a7`](https://github.com/ljharb/side-channel/commit/5c090a765d66a5527d9889b89aeff78dee91348c)
+- [meta] add `auto-changelog` [`a5c4e56`](https://github.com/ljharb/side-channel/commit/a5c4e5675ec02d5eb4d84b4243aeea2a1d38fbec)
+- [actions] add automatic rebasing / merge commit blocking [`bab1683`](https://github.com/ljharb/side-channel/commit/bab1683d8f9754b086e94397699fdc645e0d7077)
+- [meta] add `funding` field; create FUNDING.yml [`63d7aea`](https://github.com/ljharb/side-channel/commit/63d7aeaf34f5650650ae97ca4b9fae685bd0937c)
+- [Tests] add `npm run lint` [`46a5a81`](https://github.com/ljharb/side-channel/commit/46a5a81705cd2664f83df232c01dbbf2ee952885)
+- Only apps should have lockfiles [`8b16b03`](https://github.com/ljharb/side-channel/commit/8b16b0305f00895d90c4e2e5773c854cfea0e448)
+- [meta] add `safe-publish-latest` [`2f098ef`](https://github.com/ljharb/side-channel/commit/2f098ef092a39399cfe548b19a1fc03c2fd2f490)
diff --git a/backend/node_modules/side-channel/LICENSE b/backend/node_modules/side-channel/LICENSE
new file mode 100644
index 0000000..3900dd7
--- /dev/null
+++ b/backend/node_modules/side-channel/LICENSE
@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2019 Jordan Harband
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
diff --git a/backend/node_modules/side-channel/README.md b/backend/node_modules/side-channel/README.md
new file mode 100644
index 0000000..cc7e103
--- /dev/null
+++ b/backend/node_modules/side-channel/README.md
@@ -0,0 +1,61 @@
+# side-channel <sup>[![Version Badge][npm-version-svg]][package-url]</sup>
+
+[![github actions][actions-image]][actions-url]
+[![coverage][codecov-image]][codecov-url]
+[![License][license-image]][license-url]
+[![Downloads][downloads-image]][downloads-url]
+
+[![npm badge][npm-badge-png]][package-url]
+
+Store information about any JS value in a side channel. Uses WeakMap if available.
+
+Warning: in an environment that lacks `WeakMap`, this implementation will leak memory until you `delete` the `key`.
+
+## Getting started
+
+```sh
+npm install --save side-channel
+```
+
+## Usage/Examples
+
+```js
+const assert = require('assert');
+const getSideChannel = require('side-channel');
+
+const channel = getSideChannel();
+
+const key = {};
+assert.equal(channel.has(key), false);
+assert.throws(() => channel.assert(key), TypeError);
+
+channel.set(key, 42);
+
+channel.assert(key); // does not throw
+assert.equal(channel.has(key), true);
+assert.equal(channel.get(key), 42);
+
+channel.delete(key);
+assert.equal(channel.has(key), false);
+assert.throws(() => channel.assert(key), TypeError);
+```
+
+## Tests
+
+Clone the repo, `npm install`, and run `npm test`
+
+[package-url]: https://npmjs.org/package/side-channel
+[npm-version-svg]: https://versionbadg.es/ljharb/side-channel.svg
+[deps-svg]: https://david-dm.org/ljharb/side-channel.svg
+[deps-url]: https://david-dm.org/ljharb/side-channel
+[dev-deps-svg]: https://david-dm.org/ljharb/side-channel/dev-status.svg
+[dev-deps-url]: https://david-dm.org/ljharb/side-channel#info=devDependencies
+[npm-badge-png]: https://nodei.co/npm/side-channel.png?downloads=true&stars=true
+[license-image]: https://img.shields.io/npm/l/side-channel.svg
+[license-url]: LICENSE
+[downloads-image]: https://img.shields.io/npm/dm/side-channel.svg
+[downloads-url]: https://npm-stat.com/charts.html?package=side-channel
+[codecov-image]: https://codecov.io/gh/ljharb/side-channel/branch/main/graphs/badge.svg
+[codecov-url]: https://app.codecov.io/gh/ljharb/side-channel/
+[actions-image]: https://img.shields.io/endpoint?url=https://github-actions-badge-u3jn4tfpocch.runkit.sh/ljharb/side-channel
+[actions-url]: https://github.com/ljharb/side-channel/actions
diff --git a/backend/node_modules/side-channel/index.d.ts b/backend/node_modules/side-channel/index.d.ts
new file mode 100644
index 0000000..18c6317
--- /dev/null
+++ b/backend/node_modules/side-channel/index.d.ts
@@ -0,0 +1,14 @@
+import getSideChannelList from 'side-channel-list';
+import getSideChannelMap from 'side-channel-map';
+import getSideChannelWeakMap from 'side-channel-weakmap';
+
+declare namespace getSideChannel {
+	type Channel<K, V> =
+		| getSideChannelList.Channel<K, V>
+		| ReturnType<Exclude<typeof getSideChannelMap<K, V>, false>>
+		| ReturnType<Exclude<typeof getSideChannelWeakMap<K, V>, false>>;
+}
+
+declare function getSideChannel<K, V>(): getSideChannel.Channel<K, V>;
+
+export = getSideChannel;
diff --git a/backend/node_modules/side-channel/index.js b/backend/node_modules/side-channel/index.js
new file mode 100644
index 0000000..a8a9b05
--- /dev/null
+++ b/backend/node_modules/side-channel/index.js
@@ -0,0 +1,43 @@
+'use strict';
+
+var $TypeError = require('es-errors/type');
+var inspect = require('object-inspect');
+var getSideChannelList = require('side-channel-list');
+var getSideChannelMap = require('side-channel-map');
+var getSideChannelWeakMap = require('side-channel-weakmap');
+
+var makeChannel = getSideChannelWeakMap || getSideChannelMap || getSideChannelList;
+
+/** @type {import('.')} */
+module.exports = function getSideChannel() {
+	/** @typedef {ReturnType<typeof getSideChannel>} Channel */
+
+	/** @type {Channel | undefined} */ var $channelData;
+
+	/** @type {Channel} */
+	var channel = {
+		assert: function (key) {
+			if (!channel.has(key)) {
+				throw new $TypeError('Side channel does not contain ' + inspect(key));
+			}
+		},
+		'delete': function (key) {
+			return !!$channelData && $channelData['delete'](key);
+		},
+		get: function (key) {
+			return $channelData && $channelData.get(key);
+		},
+		has: function (key) {
+			return !!$channelData && $channelData.has(key);
+		},
+		set: function (key, value) {
+			if (!$channelData) {
+				$channelData = makeChannel();
+			}
+
+			$channelData.set(key, value);
+		}
+	};
+	// @ts-expect-error TODO: figure out why this is erroring
+	return channel;
+};
diff --git a/backend/node_modules/side-channel/package.json b/backend/node_modules/side-channel/package.json
new file mode 100644
index 0000000..30fa42c
--- /dev/null
+++ b/backend/node_modules/side-channel/package.json
@@ -0,0 +1,85 @@
+{
+	"name": "side-channel",
+	"version": "1.1.0",
+	"description": "Store information about any JS value in a side channel. Uses WeakMap if available.",
+	"main": "index.js",
+	"exports": {
+		".": "./index.js",
+		"./package.json": "./package.json"
+	},
+	"types": "./index.d.ts",
+	"scripts": {
+		"prepack": "npmignore --auto --commentLines=autogenerated",
+		"prepublishOnly": "safe-publish-latest",
+		"prepublish": "not-in-publish || npm run prepublishOnly",
+		"prelint": "eclint check $(git ls-files | xargs find 2> /dev/null | grep -vE 'node_modules|\\.git')",
+		"lint": "eslint --ext=js,mjs .",
+		"postlint": "tsc -p . && attw -P",
+		"pretest": "npm run lint",
+		"tests-only": "nyc tape 'test/**/*.js'",
+		"test": "npm run tests-only",
+		"posttest": "npx npm@'>=10.2' audit --production",
+		"version": "auto-changelog && git add CHANGELOG.md",
+		"postversion": "auto-changelog && git add CHANGELOG.md && git commit --no-edit --amend && git tag -f \"v$(node -e \"console.log(require('./package.json').version)\")\""
+	},
+	"repository": {
+		"type": "git",
+		"url": "git+https://github.com/ljharb/side-channel.git"
+	},
+	"keywords": [
+		"weakmap",
+		"map",
+		"side",
+		"channel",
+		"metadata"
+	],
+	"author": "Jordan Harband <ljharb@gmail.com>",
+	"funding": {
+		"url": "https://github.com/sponsors/ljharb"
+	},
+	"license": "MIT",
+	"bugs": {
+		"url": "https://github.com/ljharb/side-channel/issues"
+	},
+	"homepage": "https://github.com/ljharb/side-channel#readme",
+	"dependencies": {
+		"es-errors": "^1.3.0",
+		"object-inspect": "^1.13.3",
+		"side-channel-list": "^1.0.0",
+		"side-channel-map": "^1.0.1",
+		"side-channel-weakmap": "^1.0.2"
+	},
+	"devDependencies": {
+		"@arethetypeswrong/cli": "^0.17.1",
+		"@ljharb/eslint-config": "^21.1.1",
+		"@ljharb/tsconfig": "^0.2.2",
+		"@types/object-inspect": "^1.13.0",
+		"@types/tape": "^5.6.5",
+		"auto-changelog": "^2.5.0",
+		"eclint": "^2.8.1",
+		"encoding": "^0.1.13",
+		"eslint": "=8.8.0",
+		"in-publish": "^2.0.1",
+		"npmignore": "^0.3.1",
+		"nyc": "^10.3.2",
+		"safe-publish-latest": "^2.0.0",
+		"tape": "^5.9.0",
+		"typescript": "next"
+	},
+	"auto-changelog": {
+		"output": "CHANGELOG.md",
+		"template": "keepachangelog",
+		"unreleased": false,
+		"commitLimit": false,
+		"backfillLimit": false,
+		"hideCredit": true
+	},
+	"publishConfig": {
+		"ignore": [
+			".github/workflows"
+		]
+	},
+	"engines": {
+		"node": ">= 0.4"
+	}
+}
diff --git a/backend/node_modules/side-channel/test/index.js b/backend/node_modules/side-channel/test/index.js
new file mode 100644
index 0000000..bd1e7c2
--- /dev/null
+++ b/backend/node_modules/side-channel/test/index.js
@@ -0,0 +1,104 @@
+'use strict';
+
+var test = require('tape');
+
+var getSideChannel = require('../');
+
+test('getSideChannel', function (t) {
+	t.test('export', function (st) {
+		st.equal(typeof getSideChannel, 'function', 'is a function');
+
+		st.equal(getSideChannel.length, 0, 'takes no arguments');
+
+		var channel = getSideChannel();
+		st.ok(channel, 'is truthy');
+		st.equal(typeof channel, 'object', 'is an object');
+		st.end();
+	});
+
+	t.test('assert', function (st) {
+		var channel = getSideChannel();
+		st['throws'](
+			function () { channel.assert({}); },
+			TypeError,
+			'nonexistent value throws'
+		);
+
+		var o = {};
+		channel.set(o, 'data');
+		st.doesNotThrow(function () { channel.assert(o); }, 'existent value noops');
+
+		st.end();
+	});
+
+	t.test('has', function (st) {
+		var channel = getSideChannel();
+		/** @type {unknown[]} */ var o = [];
+
+		st.equal(channel.has(o), false, 'nonexistent value yields false');
+
+		channel.set(o, 'foo');
+		st.equal(channel.has(o), true, 'existent value yields true');
+
+		st.equal(channel.has('abc'), false, 'non object value non existent yields false');
+
+		channel.set('abc', 'foo');
+		st.equal(channel.has('abc'), true, 'non object value that exists yields true');
+
+		st.end();
+	});
+
+	t.test('get', function (st) {
+		var channel = getSideChannel();
+		var o = {};
+		st.equal(channel.get(o), undefined, 'nonexistent value yields undefined');
+
+		var data = {};
+		channel.set(o, data);
+		st.equal(channel.get(o), data, '"get" yields data set by "set"');
+
+		st.end();
+	});
+
+	t.test('set', function (st) {
+		var channel = getSideChannel();
+		var o = function () {};
+		st.equal(channel.get(o), undefined, 'value not set');
+
+		channel.set(o, 42);
+		st.equal(channel.get(o), 42, 'value was set');
+
+		channel.set(o, Infinity);
+		st.equal(channel.get(o), Infinity, 'value was set again');
+
+		var o2 = {};
+		channel.set(o2, 17);
+		st.equal(channel.get(o), Infinity, 'o is not modified');
+		st.equal(channel.get(o2), 17, 'o2 is set');
+
+		channel.set(o, 14);
+		st.equal(channel.get(o), 14, 'o is modified');
+		st.equal(channel.get(o2), 17, 'o2 is not modified');
+
+		st.end();
+	});
+
+	t.test('delete', function (st) {
+		var channel = getSideChannel();
+		var o = {};
+		st.equal(channel['delete']({}), false, 'nonexistent value yields false');
+
+		channel.set(o, 42);
+		st.equal(channel.has(o), true, 'value is set');
+
+		st.equal(channel['delete']({}), false, 'nonexistent value still yields false');
+
+		st.equal(channel['delete'](o), true, 'deleted value yields true');
+
+		st.equal(channel.has(o), false, 'value is no longer set');
+
+		st.end();
+	});
+
+	t.end();
+});
diff --git a/backend/node_modules/side-channel/tsconfig.json b/backend/node_modules/side-channel/tsconfig.json
new file mode 100644
index 0000000..d9a6668
--- /dev/null
+++ b/backend/node_modules/side-channel/tsconfig.json
@@ -0,0 +1,9 @@
+{
+	"extends": "@ljharb/tsconfig",
+	"compilerOptions": {
+		"target": "es2021",
+	},
+	"exclude": [
+		"coverage",
+	],
+}
diff --git a/backend/node_modules/statuses/HISTORY.md b/backend/node_modules/statuses/HISTORY.md
new file mode 100644
index 0000000..dc549b8
--- /dev/null
+++ b/backend/node_modules/statuses/HISTORY.md
@@ -0,0 +1,87 @@
+2.0.2 / 2025-06-06
+==================
+
+  * Migrate to `String.prototype.slice()`
+
+2.0.1 / 2021-01-03
+==================
+
+  * Fix returning values from `Object.prototype`
+
+2.0.0 / 2020-04-19
+==================
+
+  * Drop support for Node.js 0.6
+  * Fix messaging casing of `418 I'm a Teapot`
+  * Remove code 306
+  * Remove `status[code]` exports; use `status.message[code]`
+  * Remove `status[msg]` exports; use `status.code[msg]`
+  * Rename `425 Unordered Collection` to standard `425 Too Early`
+  * Rename `STATUS_CODES` export to `message`
+  * Return status message for `statuses(code)` when given code
+
+1.5.0 / 2018-03-27
+==================
+
+  * Add `103 Early Hints`
+
+1.4.0 / 2017-10-20
+==================
+
+  * Add `STATUS_CODES` export
+
+1.3.1 / 2016-11-11
+==================
+
+  * Fix return type in JSDoc
+
+1.3.0 / 2016-05-17
+==================
+
+  * Add `421 Misdirected Request`
+  * perf: enable strict mode
+
+1.2.1 / 2015-02-01
+==================
+
+  * Fix message for status 451
+    - `451 Unavailable For Legal Reasons`
+
+1.2.0 / 2014-09-28
+==================
+
+  * Add `208 Already Repored`
+  * Add `226 IM Used`
+  * Add `306 (Unused)`
+  * Add `415 Unable For Legal Reasons`
+  * Add `508 Loop Detected`
+
+1.1.1 / 2014-09-24
+==================
+
+  * Add missing 308 to `codes.json`
+
+1.1.0 / 2014-09-21
+==================
+
+  * Add `codes.json` for universal support
+
+1.0.4 / 2014-08-20
+==================
+
+  * Package cleanup
+
+1.0.3 / 2014-06-08
+==================
+
+  * Add 308 to `.redirect` category
+
+1.0.2 / 2014-03-13
+==================
+
+  * Add `.retry` category
+
+1.0.1 / 2014-03-12
+==================
+
+  * Initial release
diff --git a/backend/node_modules/statuses/LICENSE b/backend/node_modules/statuses/LICENSE
new file mode 100644
index 0000000..28a3161
--- /dev/null
+++ b/backend/node_modules/statuses/LICENSE
@@ -0,0 +1,23 @@
+
+The MIT License (MIT)
+
+Copyright (c) 2014 Jonathan Ong <me@jongleberry.com>
+Copyright (c) 2016 Douglas Christopher Wilson <doug@somethingdoug.com>
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
diff --git a/backend/node_modules/statuses/README.md b/backend/node_modules/statuses/README.md
new file mode 100644
index 0000000..89d542f
--- /dev/null
+++ b/backend/node_modules/statuses/README.md
@@ -0,0 +1,139 @@
+# statuses
+
+[![NPM Version][npm-version-image]][npm-url]
+[![NPM Downloads][npm-downloads-image]][npm-url]
+[![Node.js Version][node-version-image]][node-version-url]
+[![Build Status][ci-image]][ci-url]
+[![Test Coverage][coveralls-image]][coveralls-url]
+[![OpenSSF Scorecard Badge][ossf-scorecard-badge]][ossf-scorecard-visualizer]
+
+HTTP status utility for node.
+
+This module provides a list of status codes and messages sourced from
+a few different projects:
+
+  * The [IANA Status Code Registry](https://www.iana.org/assignments/http-status-codes/http-status-codes.xhtml)
+  * The [Node.js project](https://nodejs.org/)
+  * The [NGINX project](https://www.nginx.com/)
+  * The [Apache HTTP Server project](https://httpd.apache.org/)
+
+## Installation
+
+This is a [Node.js](https://nodejs.org/en/) module available through the
+[npm registry](https://www.npmjs.com/). Installation is done using the
+[`npm install` command](https://docs.npmjs.com/getting-started/installing-npm-packages-locally):
+
+```sh
+$ npm install statuses
+```
+
+## API
+
+<!-- eslint-disable no-unused-vars -->
+
+```js
+var status = require('statuses')
+```
+
+### status(code)
+
+Returns the status message string for a known HTTP status code. The code
+may be a number or a string. An error is thrown for an unknown status code.
+
+<!-- eslint-disable no-undef -->
+
+```js
+status(403) // => 'Forbidden'
+status('403') // => 'Forbidden'
+status(306) // throws
+```
+
+### status(msg)
+
+Returns the numeric status code for a known HTTP status message. The message
+is case-insensitive. An error is thrown for an unknown status message.
+
+<!-- eslint-disable no-undef -->
+
+```js
+status('forbidden') // => 403
+status('Forbidden') // => 403
+status('foo') // throws
+```
+
+### status.codes
+
+Returns an array of all the status codes as `Integer`s.
+
+### status.code[msg]
+
+Returns the numeric status code for a known status message (in lower-case),
+otherwise `undefined`.
+
+<!-- eslint-disable no-undef, no-unused-expressions -->
+
+```js
+status['not found'] // => 404
+```
+
+### status.empty[code]
+
+Returns `true` if a status code expects an empty body.
+
+<!-- eslint-disable no-undef, no-unused-expressions -->
+
+```js
+status.empty[200] // => undefined
+status.empty[204] // => true
+status.empty[304] // => true
+```
+
+### status.message[code]
+
+Returns the string message for a known numeric status code, otherwise
+`undefined`. This object is the same format as the
+[Node.js http module `http.STATUS_CODES`](https://nodejs.org/dist/latest/docs/api/http.html#http_http_status_codes).
+
+<!-- eslint-disable no-undef, no-unused-expressions -->
+
+```js
+status.message[404] // => 'Not Found'
+```
+
+### status.redirect[code]
+
+Returns `true` if a status code is a valid redirect status.
+
+<!-- eslint-disable no-undef, no-unused-expressions -->
+
+```js
+status.redirect[200] // => undefined
+status.redirect[301] // => true
+```
+
+### status.retry[code]
+
+Returns `true` if you should retry the rest.
+
+<!-- eslint-disable no-undef, no-unused-expressions -->
+
+```js
+status.retry[501] // => undefined
+status.retry[503] // => true
+```
+
+## License
+
+[MIT](LICENSE)
+
+[ci-image]: https://badgen.net/github/checks/jshttp/statuses/master?label=ci
+[ci-url]: https://github.com/jshttp/statuses/actions?query=workflow%3Aci
+[coveralls-image]: https://badgen.net/coveralls/c/github/jshttp/statuses/master
+[coveralls-url]: https://coveralls.io/r/jshttp/statuses?branch=master
+[node-version-image]: https://badgen.net/npm/node/statuses
+[node-version-url]: https://nodejs.org/en/download
+[npm-downloads-image]: https://badgen.net/npm/dm/statuses
+[npm-url]: https://npmjs.org/package/statuses
+[npm-version-image]: https://badgen.net/npm/v/statuses
+[ossf-scorecard-badge]: https://api.securityscorecards.dev/projects/github.com/jshttp/statuses/badge
+[ossf-scorecard-visualizer]: https://kooltheba.github.io/openssf-scorecard-api-visualizer/#/projects/github.com/jshttp/statuses
diff --git a/backend/node_modules/statuses/codes.json b/backend/node_modules/statuses/codes.json
new file mode 100644
index 0000000..1333ed1
--- /dev/null
+++ b/backend/node_modules/statuses/codes.json
@@ -0,0 +1,65 @@
+{
+  "100": "Continue",
+  "101": "Switching Protocols",
+  "102": "Processing",
+  "103": "Early Hints",
+  "200": "OK",
+  "201": "Created",
+  "202": "Accepted",
+  "203": "Non-Authoritative Information",
+  "204": "No Content",
+  "205": "Reset Content",
+  "206": "Partial Content",
+  "207": "Multi-Status",
+  "208": "Already Reported",
+  "226": "IM Used",
+  "300": "Multiple Choices",
+  "301": "Moved Permanently",
+  "302": "Found",
+  "303": "See Other",
+  "304": "Not Modified",
+  "305": "Use Proxy",
+  "307": "Temporary Redirect",
+  "308": "Permanent Redirect",
+  "400": "Bad Request",
+  "401": "Unauthorized",
+  "402": "Payment Required",
+  "403": "Forbidden",
+  "404": "Not Found",
+  "405": "Method Not Allowed",
+  "406": "Not Acceptable",
+  "407": "Proxy Authentication Required",
+  "408": "Request Timeout",
+  "409": "Conflict",
+  "410": "Gone",
+  "411": "Length Required",
+  "412": "Precondition Failed",
+  "413": "Payload Too Large",
+  "414": "URI Too Long",
+  "415": "Unsupported Media Type",
+  "416": "Range Not Satisfiable",
+  "417": "Expectation Failed",
+  "418": "I'm a Teapot",
+  "421": "Misdirected Request",
+  "422": "Unprocessable Entity",
+  "423": "Locked",
+  "424": "Failed Dependency",
+  "425": "Too Early",
+  "426": "Upgrade Required",
+  "428": "Precondition Required",
+  "429": "Too Many Requests",
+  "431": "Request Header Fields Too Large",
+  "451": "Unavailable For Legal Reasons",
+  "500": "Internal Server Error",
+  "501": "Not Implemented",
+  "502": "Bad Gateway",
+  "503": "Service Unavailable",
+  "504": "Gateway Timeout",
+  "505": "HTTP Version Not Supported",
+  "506": "Variant Also Negotiates",
+  "507": "Insufficient Storage",
+  "508": "Loop Detected",
+  "509": "Bandwidth Limit Exceeded",
+  "510": "Not Extended",
+  "511": "Network Authentication Required"
+}
diff --git a/backend/node_modules/statuses/index.js b/backend/node_modules/statuses/index.js
new file mode 100644
index 0000000..ea351c5
--- /dev/null
+++ b/backend/node_modules/statuses/index.js
@@ -0,0 +1,146 @@
+/*!
+ * statuses
+ * Copyright(c) 2014 Jonathan Ong
+ * Copyright(c) 2016 Douglas Christopher Wilson
+ * MIT Licensed
+ */
+
+'use strict'
+
+/**
+ * Module dependencies.
+ * @private
+ */
+
+var codes = require('./codes.json')
+
+/**
+ * Module exports.
+ * @public
+ */
+
+module.exports = status
+
+// status code to message map
+status.message = codes
+
+// status message (lower-case) to code map
+status.code = createMessageToStatusCodeMap(codes)
+
+// array of status codes
+status.codes = createStatusCodeList(codes)
+
+// status codes for redirects
+status.redirect = {
+  300: true,
+  301: true,
+  302: true,
+  303: true,
+  305: true,
+  307: true,
+  308: true
+}
+
+// status codes for empty bodies
+status.empty = {
+  204: true,
+  205: true,
+  304: true
+}
+
+// status codes for when you should retry the request
+status.retry = {
+  502: true,
+  503: true,
+  504: true
+}
+
+/**
+ * Create a map of message to status code.
+ * @private
+ */
+
+function createMessageToStatusCodeMap (codes) {
+  var map = {}
+
+  Object.keys(codes).forEach(function forEachCode (code) {
+    var message = codes[code]
+    var status = Number(code)
+
+    // populate map
+    map[message.toLowerCase()] = status
+  })
+
+  return map
+}
+
+/**
+ * Create a list of all status codes.
+ * @private
+ */
+
+function createStatusCodeList (codes) {
+  return Object.keys(codes).map(function mapCode (code) {
+    return Number(code)
+  })
+}
+
+/**
+ * Get the status code for given message.
+ * @private
+ */
+
+function getStatusCode (message) {
+  var msg = message.toLowerCase()
+
+  if (!Object.prototype.hasOwnProperty.call(status.code, msg)) {
+    throw new Error('invalid status message: "' + message + '"')
+  }
+
+  return status.code[msg]
+}
+
+/**
+ * Get the status message for given code.
+ * @private
+ */
+
+function getStatusMessage (code) {
+  if (!Object.prototype.hasOwnProperty.call(status.message, code)) {
+    throw new Error('invalid status code: ' + code)
+  }
+
+  return status.message[code]
+}
+
+/**
+ * Get the status code.
+ *
+ * Given a number, this will throw if it is not a known status
+ * code, otherwise the code will be returned. Given a string,
+ * the string will be parsed for a number and return the code
+ * if valid, otherwise will lookup the code assuming this is
+ * the status message.
+ *
+ * @param {string|number} code
+ * @returns {number}
+ * @public
+ */
+
+function status (code) {
+  if (typeof code === 'number') {
+    return getStatusMessage(code)
+  }
+
+  if (typeof code !== 'string') {
+    throw new TypeError('code must be a number or string')
+  }
+
+  // '403'
+  var n = parseInt(code, 10)
+  if (!isNaN(n)) {
+    return getStatusMessage(n)
+  }
+
+  return getStatusCode(code)
+}
diff --git a/backend/node_modules/statuses/package.json b/backend/node_modules/statuses/package.json
new file mode 100644
index 0000000..b5d016e
--- /dev/null
+++ b/backend/node_modules/statuses/package.json
@@ -0,0 +1,49 @@
+{
+  "name": "statuses",
+  "description": "HTTP status utility",
+  "version": "2.0.2",
+  "contributors": [
+    "Douglas Christopher Wilson <doug@somethingdoug.com>",
+    "Jonathan Ong <me@jongleberry.com> (http://jongleberry.com)"
+  ],
+  "repository": "jshttp/statuses",
+  "license": "MIT",
+  "keywords": [
+    "http",
+    "status",
+    "code"
+  ],
+  "files": [
+    "HISTORY.md",
+    "index.js",
+    "codes.json",
+    "LICENSE"
+  ],
+  "devDependencies": {
+    "csv-parse": "4.16.3",
+    "eslint": "7.19.0",
+    "eslint-config-standard": "14.1.1",
+    "eslint-plugin-import": "2.31.0",
+    "eslint-plugin-markdown": "1.0.2",
+    "eslint-plugin-node": "11.1.0",
+    "eslint-plugin-promise": "4.3.1",
+    "eslint-plugin-standard": "4.1.0",
+    "mocha": "8.4.0",
+    "nyc": "15.1.0",
+    "raw-body": "2.5.2",
+    "stream-to-array": "2.3.0"
+  },
+  "engines": {
+    "node": ">= 0.8"
+  },
+  "scripts": {
+    "build": "node scripts/build.js",
+    "fetch": "node scripts/fetch-apache.js && node scripts/fetch-iana.js && node scripts/fetch-nginx.js && node scripts/fetch-node.js",
+    "lint": "eslint --plugin markdown --ext js,md .",
+    "test": "mocha --reporter spec --check-leaks --bail test/",
+    "test-ci": "nyc --reporter=lcov --reporter=text npm test",
+    "test-cov": "nyc --reporter=html --reporter=text npm test",
+    "update": "npm run fetch && npm run build",
+    "version": "node scripts/version-history.js && git add HISTORY.md"
+  }
+}
diff --git a/backend/node_modules/toidentifier/HISTORY.md b/backend/node_modules/toidentifier/HISTORY.md
new file mode 100644
index 0000000..cb7cc89
--- /dev/null
+++ b/backend/node_modules/toidentifier/HISTORY.md
@@ -0,0 +1,9 @@
+1.0.1 / 2021-11-14
+==================
+
+  * pref: enable strict mode
+
+1.0.0 / 2018-07-09
+==================
+
+  * Initial release
diff --git a/backend/node_modules/toidentifier/LICENSE b/backend/node_modules/toidentifier/LICENSE
new file mode 100644
index 0000000..de22d15
--- /dev/null
+++ b/backend/node_modules/toidentifier/LICENSE
@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2016 Douglas Christopher Wilson <doug@somethingdoug.com>
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
diff --git a/backend/node_modules/toidentifier/README.md b/backend/node_modules/toidentifier/README.md
new file mode 100644
index 0000000..57e8a78
--- /dev/null
+++ b/backend/node_modules/toidentifier/README.md
@@ -0,0 +1,61 @@
+# toidentifier
+
+[![NPM Version][npm-image]][npm-url]
+[![NPM Downloads][downloads-image]][downloads-url]
+[![Build Status][github-actions-ci-image]][github-actions-ci-url]
+[![Test Coverage][codecov-image]][codecov-url]
+
+> Convert a string of words to a JavaScript identifier
+
+## Install
+
+This is a [Node.js](https://nodejs.org/en/) module available through the
+[npm registry](https://www.npmjs.com/). Installation is done using the
+[`npm install` command](https://docs.npmjs.com/getting-started/installing-npm-packages-locally):
+
+```bash
+$ npm install toidentifier
+```
+
+## Example
+
+```js
+var toIdentifier = require('toidentifier')
+
+console.log(toIdentifier('Bad Request'))
+// => "BadRequest"
+```
+
+## API
+
+This CommonJS module exports a single default function: `toIdentifier`.
+
+### toIdentifier(string)
+
+Given a string as the argument, it will be transformed according to
+the following rules and the new string will be returned:
+
+1. Split into words separated by space characters (`0x20`).
+2. Upper case the first character of each word.
+3. Join the words together with no separator.
+4. Remove all non-word (`[0-9a-z_]`) characters.
+
+## License
+
+[MIT](LICENSE)
+
+[codecov-image]: https://img.shields.io/codecov/c/github/component/toidentifier.svg
+[codecov-url]: https://codecov.io/gh/component/toidentifier
+[downloads-image]: https://img.shields.io/npm/dm/toidentifier.svg
+[downloads-url]: https://npmjs.org/package/toidentifier
+[github-actions-ci-image]: https://img.shields.io/github/workflow/status/component/toidentifier/ci/master?label=ci
+[github-actions-ci-url]: https://github.com/component/toidentifier?query=workflow%3Aci
+[npm-image]: https://img.shields.io/npm/v/toidentifier.svg
+[npm-url]: https://npmjs.org/package/toidentifier
+
+
+##
+
+[npm]: https://www.npmjs.com/
+
+[yarn]: https://yarnpkg.com/
diff --git a/backend/node_modules/toidentifier/index.js b/backend/node_modules/toidentifier/index.js
new file mode 100644
index 0000000..9295d02
--- /dev/null
+++ b/backend/node_modules/toidentifier/index.js
@@ -0,0 +1,32 @@
+/*!
+ * toidentifier
+ * Copyright(c) 2016 Douglas Christopher Wilson
+ * MIT Licensed
+ */
+
+'use strict'
+
+/**
+ * Module exports.
+ * @public
+ */
+
+module.exports = toIdentifier
+
+/**
+ * Trasform the given string into a JavaScript identifier
+ *
+ * @param {string} str
+ * @returns {string}
+ * @public
+ */
+
+function toIdentifier (str) {
+  return str
+    .split(' ')
+    .map(function (token) {
+      return token.slice(0, 1).toUpperCase() + token.slice(1)
+    })
+    .join('')
+    .replace(/[^ _0-9a-z]/gi, '')
+}
diff --git a/backend/node_modules/toidentifier/package.json b/backend/node_modules/toidentifier/package.json
new file mode 100644
index 0000000..42db1a6
--- /dev/null
+++ b/backend/node_modules/toidentifier/package.json
@@ -0,0 +1,38 @@
+{
+  "name": "toidentifier",
+  "description": "Convert a string of words to a JavaScript identifier",
+  "version": "1.0.1",
+  "author": "Douglas Christopher Wilson <doug@somethingdoug.com>",
+  "contributors": [
+    "Douglas Christopher Wilson <doug@somethingdoug.com>",
+    "Nick Baugh <niftylettuce@gmail.com> (http://niftylettuce.com/)"
+  ],
+  "repository": "component/toidentifier",
+  "devDependencies": {
+    "eslint": "7.32.0",
+    "eslint-config-standard": "14.1.1",
+    "eslint-plugin-import": "2.25.3",
+    "eslint-plugin-markdown": "2.2.1",
+    "eslint-plugin-node": "11.1.0",
+    "eslint-plugin-promise": "4.3.1",
+    "eslint-plugin-standard": "4.1.0",
+    "mocha": "9.1.3",
+    "nyc": "15.1.0"
+  },
+  "engines": {
+    "node": ">=0.6"
+  },
+  "license": "MIT",
+  "files": [
+    "HISTORY.md",
+    "LICENSE",
+    "index.js"
+  ],
+  "scripts": {
+    "lint": "eslint .",
+    "test": "mocha --reporter spec --bail --check-leaks test/",
+    "test-ci": "nyc --reporter=lcov --reporter=text npm test",
+    "test-cov": "nyc --reporter=html --reporter=text npm test",
+    "version": "node scripts/version-history.js && git add HISTORY.md"
+  }
+}
diff --git a/backend/node_modules/type-is/HISTORY.md b/backend/node_modules/type-is/HISTORY.md
new file mode 100644
index 0000000..6812655
--- /dev/null
+++ b/backend/node_modules/type-is/HISTORY.md
@@ -0,0 +1,292 @@
+2.0.1 / 2025-03-27
+==========
+
+2.0.0 / 2024-08-31
+==========
+
+  * Drop node <18
+  * Use `content-type@^1.0.5` and `media-typer@^1.0.0` for type validation
+    - No behavior changes, upgrades `media-typer`
+  * deps: mime-types@^3.0.0
+    - Add `application/toml` with extension `.toml`
+    - Add `application/ubjson` with extension `.ubj`
+    - Add `application/x-keepass2` with extension `.kdbx`
+    - Add deprecated iWorks mime types and extensions
+    - Add extension `.amr` to `audio/amr`
+    - Add extension `.cjs` to `application/node`
+    - Add extension `.dbf` to `application/vnd.dbf`
+    - Add extension `.m4s` to `video/iso.segment`
+    - Add extension `.mvt` to `application/vnd.mapbox-vector-tile`
+    - Add extension `.mxmf` to `audio/mobile-xmf`
+    - Add extension `.opus` to `audio/ogg`
+    - Add extension `.rar` to `application/vnd.rar`
+    - Add extension `.td` to `application/urc-targetdesc+xml`
+    - Add extension `.trig` to `application/trig`
+    - Add extensions from IANA for `application/*+xml` types
+    - Add `image/avif` with extension `.avif`
+    - Add `image/ktx2` with extension `.ktx2`
+    - Add `image/vnd.ms-dds` with extension `.dds`
+    - Add new upstream MIME types
+    - Fix extension of `application/vnd.apple.keynote` to be `.key`
+    - Remove ambigious extensions from IANA for `application/*+xml` types
+    - Update primary extension to `.es` for `application/ecmascript`
+
+1.6.18 / 2019-04-26
+===================
+
+  * Fix regression passing request object to `typeis.is`
+
+1.6.17 / 2019-04-25
+===================
+
+  * deps: mime-types@~2.1.24
+    - Add Apple file extensions from IANA
+    - Add extension `.csl` to `application/vnd.citationstyles.style+xml`
+    - Add extension `.es` to `application/ecmascript`
+    - Add extension `.nq` to `application/n-quads`
+    - Add extension `.nt` to `application/n-triples`
+    - Add extension `.owl` to `application/rdf+xml`
+    - Add extensions `.siv` and `.sieve` to `application/sieve`
+    - Add extensions from IANA for `image/*` types
+    - Add extensions from IANA for `model/*` types
+    - Add extensions to HEIC image types
+    - Add new mime types
+    - Add `text/mdx` with extension `.mdx`
+  * perf: prevent internal `throw` on invalid type
+
+1.6.16 / 2018-02-16
+===================
+
+  * deps: mime-types@~2.1.18
+    - Add `application/raml+yaml` with extension `.raml`
+    - Add `application/wasm` with extension `.wasm`
+    - Add `text/shex` with extension `.shex`
+    - Add extensions for JPEG-2000 images
+    - Add extensions from IANA for `message/*` types
+    - Add extension `.mjs` to `application/javascript`
+    - Add extension `.wadl` to `application/vnd.sun.wadl+xml`
+    - Add extension `.gz` to `application/gzip`
+    - Add glTF types and extensions
+    - Add new mime types
+    - Update extensions `.md` and `.markdown` to be `text/markdown`
+    - Update font MIME types
+    - Update `text/hjson` to registered `application/hjson`
+
+1.6.15 / 2017-03-31
+===================
+
+  * deps: mime-types@~2.1.15
+    - Add new mime types
+
+1.6.14 / 2016-11-18
+===================
+
+  * deps: mime-types@~2.1.13
+    - Add new mime types
+
+1.6.13 / 2016-05-18
+===================
+
+  * deps: mime-types@~2.1.11
+    - Add new mime types
+
+1.6.12 / 2016-02-28
+===================
+
+  * deps: mime-types@~2.1.10
+    - Add new mime types
+    - Fix extension of `application/dash+xml`
+    - Update primary extension for `audio/mp4`
+
+1.6.11 / 2016-01-29
+===================
+
+  * deps: mime-types@~2.1.9
+    - Add new mime types
+
+1.6.10 / 2015-12-01
+===================
+
+  * deps: mime-types@~2.1.8
+    - Add new mime types
+
+1.6.9 / 2015-09-27
+==================
+
+  * deps: mime-types@~2.1.7
+    - Add new mime types
+
+1.6.8 / 2015-09-04
+==================
+
+  * deps: mime-types@~2.1.6
+    - Add new mime types
+
+1.6.7 / 2015-08-20
+==================
+
+  * Fix type error when given invalid type to match against
+  * deps: mime-types@~2.1.5
+    - Add new mime types
+
+1.6.6 / 2015-07-31
+==================
+
+  * deps: mime-types@~2.1.4
+    - Add new mime types
+
+1.6.5 / 2015-07-16
+==================
+
+  * deps: mime-types@~2.1.3
+    - Add new mime types
+
+1.6.4 / 2015-07-01
+==================
+
+  * deps: mime-types@~2.1.2
+    - Add new mime types
+  * perf: enable strict mode
+  * perf: remove argument reassignment
+
+1.6.3 / 2015-06-08
+==================
+
+  * deps: mime-types@~2.1.1
+    - Add new mime types
+  * perf: reduce try block size
+  * perf: remove bitwise operations
+
+1.6.2 / 2015-05-10
+==================
+
+  * deps: mime-types@~2.0.11
+    - Add new mime types
+
+1.6.1 / 2015-03-13
+==================
+
+  * deps: mime-types@~2.0.10
+    - Add new mime types
+
+1.6.0 / 2015-02-12
+==================
+
+  * fix false-positives in `hasBody` `Transfer-Encoding` check
+  * support wildcard for both type and subtype (`*/*`)
+
+1.5.7 / 2015-02-09
+==================
+
+  * fix argument reassignment
+  * deps: mime-types@~2.0.9
+    - Add new mime types
+
+1.5.6 / 2015-01-29
+==================
+
+  * deps: mime-types@~2.0.8
+    - Add new mime types
+
+1.5.5 / 2014-12-30
+==================
+
+  * deps: mime-types@~2.0.7
+    - Add new mime types
+    - Fix missing extensions
+    - Fix various invalid MIME type entries
+    - Remove example template MIME types
+    - deps: mime-db@~1.5.0
+
+1.5.4 / 2014-12-10
+==================
+
+  * deps: mime-types@~2.0.4
+    - Add new mime types
+    - deps: mime-db@~1.3.0
+
+1.5.3 / 2014-11-09
+==================
+
+  * deps: mime-types@~2.0.3
+    - Add new mime types
+    - deps: mime-db@~1.2.0
+
+1.5.2 / 2014-09-28
+==================
+
+  * deps: mime-types@~2.0.2
+    - Add new mime types
+    - deps: mime-db@~1.1.0
+
+1.5.1 / 2014-09-07
+==================
+
+  * Support Node.js 0.6
+  * deps: media-typer@0.3.0
+  * deps: mime-types@~2.0.1
+    - Support Node.js 0.6
+
+1.5.0 / 2014-09-05
+==================
+
+ * fix `hasbody` to be true for `content-length: 0`
+
+1.4.0 / 2014-09-02
+==================
+
+ * update mime-types
+
+1.3.2 / 2014-06-24
+==================
+
+ * use `~` range on mime-types
+
+1.3.1 / 2014-06-19
+==================
+
+ * fix global variable leak
+
+1.3.0 / 2014-06-19
+==================
+
+ * improve type parsing
+
+   - invalid media type never matches
+   - media type not case-sensitive
+   - extra LWS does not affect results
+
+1.2.2 / 2014-06-19
+==================
+
+ * fix behavior on unknown type argument
+
+1.2.1 / 2014-06-03
+==================
+
+ * switch dependency from `mime` to `mime-types@1.0.0`
+
+1.2.0 / 2014-05-11
+==================
+
+ * support suffix matching:
+
+   - `+json` matches `application/vnd+json`
+   - `*/vnd+json` matches `application/vnd+json`
+   - `application/*+json` matches `application/vnd+json`
+
+1.1.0 / 2014-04-12
+==================
+
+ * add non-array values support
+ * expose internal utilities:
+
+   - `.is()`
+   - `.hasBody()`
+   - `.normalize()`
+   - `.match()`
+
+1.0.1 / 2014-03-30
+==================
+
+ * add `multipart` as a shorthand
diff --git a/backend/node_modules/type-is/LICENSE b/backend/node_modules/type-is/LICENSE
new file mode 100644
index 0000000..386b7b6
--- /dev/null
+++ b/backend/node_modules/type-is/LICENSE
@@ -0,0 +1,23 @@
+(The MIT License)
+
+Copyright (c) 2014 Jonathan Ong <me@jongleberry.com>
+Copyright (c) 2014-2015 Douglas Christopher Wilson <doug@somethingdoug.com>
+
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of this software and associated documentation files (the
+'Software'), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sublicense, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to
+the following conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
diff --git a/backend/node_modules/type-is/README.md b/backend/node_modules/type-is/README.md
new file mode 100644
index 0000000..d23946e
--- /dev/null
+++ b/backend/node_modules/type-is/README.md
@@ -0,0 +1,198 @@
+# type-is
+
+[![NPM Version][npm-version-image]][npm-url]
+[![NPM Downloads][npm-downloads-image]][npm-url]
+[![Node.js Version][node-version-image]][node-version-url]
+[![Build Status][ci-image]][ci-url]
+[![Test Coverage][coveralls-image]][coveralls-url]
+
+Infer the content-type of a request.
+
+## Install
+
+This is a [Node.js](https://nodejs.org/en/) module available through the
+[npm registry](https://www.npmjs.com/). Installation is done using the
+[`npm install` command](https://docs.npmjs.com/getting-started/installing-npm-packages-locally):
+
+```sh
+$ npm install type-is
+```
+
+## API
+
+```js
+var http = require('http')
+var typeis = require('type-is')
+
+http.createServer(function (req, res) {
+  var istext = typeis(req, ['text/*'])
+  res.end('you ' + (istext ? 'sent' : 'did not send') + ' me text')
+})
+```
+
+### typeis(request, types)
+
+Checks if the `request` is one of the `types`. If the request has no body,
+even if there is a `Content-Type` header, then `null` is returned. If the
+`Content-Type` header is invalid or does not matches any of the `types`, then
+`false` is returned. Otherwise, a string of the type that matched is returned.
+
+The `request` argument is expected to be a Node.js HTTP request. The `types`
+argument is an array of type strings.
+
+Each type in the `types` array can be one of the following:
+
+- A file extension name such as `json`. This name will be returned if matched.
+- A mime type such as `application/json`.
+- A mime type with a wildcard such as `*/*` or `*/json` or `application/*`.
+  The full mime type will be returned if matched.
+- A suffix such as `+json`. This can be combined with a wildcard such as
+  `*/vnd+json` or `application/*+json`. The full mime type will be returned
+  if matched.
+
+Some examples to illustrate the inputs and returned value:
+
+```js
+// req.headers.content-type = 'application/json'
+
+typeis(req, ['json']) // => 'json'
+typeis(req, ['html', 'json']) // => 'json'
+typeis(req, ['application/*']) // => 'application/json'
+typeis(req, ['application/json']) // => 'application/json'
+
+typeis(req, ['html']) // => false
+```
+
+### typeis.hasBody(request)
+
+Returns a Boolean if the given `request` has a body, regardless of the
+`Content-Type` header.
+
+Having a body has no relation to how large the body is (it may be 0 bytes).
+This is similar to how file existence works. If a body does exist, then this
+indicates that there is data to read from the Node.js request stream.
+
+```js
+if (typeis.hasBody(req)) {
+  // read the body, since there is one
+
+  req.on('data', function (chunk) {
+    // ...
+  })
+}
+```
+
+### typeis.is(mediaType, types)
+
+Checks if the `mediaType` is one of the `types`. If the `mediaType` is invalid
+or does not matches any of the `types`, then `false` is returned. Otherwise, a
+string of the type that matched is returned.
+
+The `mediaType` argument is expected to be a
+[media type](https://tools.ietf.org/html/rfc6838) string. The `types` argument
+is an array of type strings.
+
+Each type in the `types` array can be one of the following:
+
+- A file extension name such as `json`. This name will be returned if matched.
+- A mime type such as `application/json`.
+- A mime type with a wildcard such as `*/*` or `*/json` or `application/*`.
+  The full mime type will be returned if matched.
+- A suffix such as `+json`. This can be combined with a wildcard such as
+  `*/vnd+json` or `application/*+json`. The full mime type will be returned
+  if matched.
+
+Some examples to illustrate the inputs and returned value:
+
+```js
+var mediaType = 'application/json'
+
+typeis.is(mediaType, ['json']) // => 'json'
+typeis.is(mediaType, ['html', 'json']) // => 'json'
+typeis.is(mediaType, ['application/*']) // => 'application/json'
+typeis.is(mediaType, ['application/json']) // => 'application/json'
+
+typeis.is(mediaType, ['html']) // => false
+```
+
+### typeis.match(expected, actual)
+
+Match the type string `expected` with `actual`, taking in to account wildcards.
+A wildcard can only be in the type of the subtype part of a media type and only
+in the `expected` value (as `actual` should be the real media type to match). A
+suffix can still be included even with a wildcard subtype. If an input is
+malformed, `false` will be returned.
+
+```js
+typeis.match('text/html', 'text/html') // => true
+typeis.match('*/html', 'text/html') // => true
+typeis.match('text/*', 'text/html') // => true
+typeis.match('*/*', 'text/html') // => true
+typeis.match('*/*+json', 'application/x-custom+json') // => true
+```
+
+### typeis.normalize(type)
+
+Normalize a `type` string. This works by performing the following:
+
+- If the `type` is not a string, `false` is returned.
+- If the string starts with `+` (so it is a `+suffix` shorthand like `+json`),
+  then it is expanded to contain the complete wildcard notation of `*/*+suffix`.
+- If the string contains a `/`, then it is returned as the type.
+- Else the string is assumed to be a file extension and the mapped media type is
+  returned, or `false` is there is no mapping.
+
+This includes two special mappings:
+
+- `'multipart'` -> `'multipart/*'`
+- `'urlencoded'` -> `'application/x-www-form-urlencoded'`
+
+## Examples
+
+### Example body parser
+
+```js
+var express = require('express')
+var typeis = require('type-is')
+
+var app = express()
+
+app.use(function bodyParser (req, res, next) {
+  if (!typeis.hasBody(req)) {
+    return next()
+  }
+
+  switch (typeis(req, ['urlencoded', 'json', 'multipart'])) {
+    case 'urlencoded':
+      // parse urlencoded body
+      throw new Error('implement urlencoded body parsing')
+    case 'json':
+      // parse json body
+      throw new Error('implement json body parsing')
+    case 'multipart':
+      // parse multipart body
+      throw new Error('implement multipart body parsing')
+    default:
+      // 415 error code
+      res.statusCode = 415
+      res.end()
+      break
+  }
+})
+```
+
+## License
+
+[MIT](LICENSE)
+
+[ci-image]: https://badgen.net/github/checks/jshttp/type-is/master?label=ci
+[ci-url]: https://github.com/jshttp/type-is/actions/workflows/ci.yml
+[coveralls-image]: https://badgen.net/coveralls/c/github/jshttp/type-is/master
+[coveralls-url]: https://coveralls.io/r/jshttp/type-is?branch=master
+[node-version-image]: https://badgen.net/npm/node/type-is
+[node-version-url]: https://nodejs.org/en/download
+[npm-downloads-image]: https://badgen.net/npm/dm/type-is
+[npm-url]: https://npmjs.org/package/type-is
+[npm-version-image]: https://badgen.net/npm/v/type-is
+[travis-image]: https://badgen.net/travis/jshttp/type-is/master
+[travis-url]: https://travis-ci.org/jshttp/type-is
diff --git a/backend/node_modules/type-is/index.js b/backend/node_modules/type-is/index.js
new file mode 100644
index 0000000..e773845
--- /dev/null
+++ b/backend/node_modules/type-is/index.js
@@ -0,0 +1,250 @@
+/*!
+ * type-is
+ * Copyright(c) 2014 Jonathan Ong
+ * Copyright(c) 2014-2015 Douglas Christopher Wilson
+ * MIT Licensed
+ */
+
+'use strict'
+
+/**
+ * Module dependencies.
+ * @private
+ */
+
+var contentType = require('content-type')
+var mime = require('mime-types')
+var typer = require('media-typer')
+
+/**
+ * Module exports.
+ * @public
+ */
+
+module.exports = typeofrequest
+module.exports.is = typeis
+module.exports.hasBody = hasbody
+module.exports.normalize = normalize
+module.exports.match = mimeMatch
+
+/**
+ * Compare a `value` content-type with `types`.
+ * Each `type` can be an extension like `html`,
+ * a special shortcut like `multipart` or `urlencoded`,
+ * or a mime type.
+ *
+ * If no types match, `false` is returned.
+ * Otherwise, the first `type` that matches is returned.
+ *
+ * @param {String} value
+ * @param {Array} types
+ * @public
+ */
+
+function typeis (value, types_) {
+  var i
+  var types = types_
+
+  // remove parameters and normalize
+  var val = tryNormalizeType(value)
+
+  // no type or invalid
+  if (!val) {
+    return false
+  }
+
+  // support flattened arguments
+  if (types && !Array.isArray(types)) {
+    types = new Array(arguments.length - 1)
+    for (i = 0; i < types.length; i++) {
+      types[i] = arguments[i + 1]
+    }
+  }
+
+  // no types, return the content type
+  if (!types || !types.length) {
+    return val
+  }
+
+  var type
+  for (i = 0; i < types.length; i++) {
+    if (mimeMatch(normalize(type = types[i]), val)) {
+      return type[0] === '+' || type.indexOf('*') !== -1
+        ? val
+        : type
+    }
+  }
+
+  // no matches
+  return false
+}
+
+/**
+ * Check if a request has a request body.
+ * A request with a body __must__ either have `transfer-encoding`
+ * or `content-length` headers set.
+ * http://www.w3.org/Protocols/rfc2616/rfc2616-sec4.html#sec4.3
+ *
+ * @param {Object} request
+ * @return {Boolean}
+ * @public
+ */
+
+function hasbody (req) {
+  return req.headers['transfer-encoding'] !== undefined ||
+    !isNaN(req.headers['content-length'])
+}
+
+/**
+ * Check if the incoming request contains the "Content-Type"
+ * header field, and it contains any of the give mime `type`s.
+ * If there is no request body, `null` is returned.
+ * If there is no content type, `false` is returned.
+ * Otherwise, it returns the first `type` that matches.
+ *
+ * Examples:
+ *
+ *     // With Content-Type: text/html; charset=utf-8
+ *     this.is('html'); // => 'html'
+ *     this.is('text/html'); // => 'text/html'
+ *     this.is('text/*', 'application/json'); // => 'text/html'
+ *
+ *     // When Content-Type is application/json
+ *     this.is('json', 'urlencoded'); // => 'json'
+ *     this.is('application/json'); // => 'application/json'
+ *     this.is('html', 'application/*'); // => 'application/json'
+ *
+ *     this.is('html'); // => false
+ *
+ * @param {Object} req
+ * @param {(String|Array)} types...
+ * @return {(String|false|null)}
+ * @public
+ */
+
+function typeofrequest (req, types_) {
+  // no body
+  if (!hasbody(req)) return null
+  // support flattened arguments
+  var types = arguments.length > 2
+    ? Array.prototype.slice.call(arguments, 1)
+    : types_
+  // request content type
+  var value = req.headers['content-type']
+
+  return typeis(value, types)
+}
+
+/**
+ * Normalize a mime type.
+ * If it's a shorthand, expand it to a valid mime type.
+ *
+ * In general, you probably want:
+ *
+ *   var type = is(req, ['urlencoded', 'json', 'multipart']);
+ *
+ * Then use the appropriate body parsers.
+ * These three are the most common request body types
+ * and are thus ensured to work.
+ *
+ * @param {String} type
+ * @return {String|false|null}
+ * @public
+ */
+
+function normalize (type) {
+  if (typeof type !== 'string') {
+    // invalid type
+    return false
+  }
+
+  switch (type) {
+    case 'urlencoded':
+      return 'application/x-www-form-urlencoded'
+    case 'multipart':
+      return 'multipart/*'
+  }
+
+  if (type[0] === '+') {
+    // "+json" -> "*/*+json" expando
+    return '*/*' + type
+  }
+
+  return type.indexOf('/') === -1
+    ? mime.lookup(type)
+    : type
+}
+
+/**
+ * Check if `expected` mime type
+ * matches `actual` mime type with
+ * wildcard and +suffix support.
+ *
+ * @param {String} expected
+ * @param {String} actual
+ * @return {Boolean}
+ * @public
+ */
+
+function mimeMatch (expected, actual) {
+  // invalid type
+  if (expected === false) {
+    return false
+  }
+
+  // split types
+  var actualParts = actual.split('/')
+  var expectedParts = expected.split('/')
+
+  // invalid format
+  if (actualParts.length !== 2 || expectedParts.length !== 2) {
+    return false
+  }
+
+  // validate type
+  if (expectedParts[0] !== '*' && expectedParts[0] !== actualParts[0]) {
+    return false
+  }
+
+  // validate suffix wildcard
+  if (expectedParts[1].slice(0, 2) === '*+') {
+    return expectedParts[1].length <= actualParts[1].length + 1 &&
+      expectedParts[1].slice(1) === actualParts[1].slice(1 - expectedParts[1].length)
+  }
+
+  // validate subtype
+  if (expectedParts[1] !== '*' && expectedParts[1] !== actualParts[1]) {
+    return false
+  }
+
+  return true
+}
+
+/**
+ * Normalize a type and remove parameters.
+ *
+ * @param {string} value
+ * @return {(string|null)}
+ * @private
+ */
+function normalizeType (value) {
+  // Parse the type
+  var type = contentType.parse(value).type
+
+  return typer.test(type) ? type : null
+}
+
+/**
+ * Try to normalize a type and remove parameters.
+ *
+ * @param {string} value
+ * @return {(string|null)}
+ * @private
+ */
+function tryNormalizeType (value) {
+  try {
+    return value ? normalizeType(value) : null
+  } catch (err) {
+    return null
+  }
+}
diff --git a/backend/node_modules/type-is/package.json b/backend/node_modules/type-is/package.json
new file mode 100644
index 0000000..08586d2
--- /dev/null
+++ b/backend/node_modules/type-is/package.json
@@ -0,0 +1,47 @@
+{
+  "name": "type-is",
+  "description": "Infer the content-type of a request.",
+  "version": "2.0.1",
+  "contributors": [
+    "Douglas Christopher Wilson <doug@somethingdoug.com>",
+    "Jonathan Ong <me@jongleberry.com> (http://jongleberry.com)"
+  ],
+  "license": "MIT",
+  "repository": "jshttp/type-is",
+  "dependencies": {
+    "content-type": "^1.0.5",
+    "media-typer": "^1.1.0",
+    "mime-types": "^3.0.0"
+  },
+  "devDependencies": {
+    "eslint": "7.32.0",
+    "eslint-config-standard": "14.1.1",
+    "eslint-plugin-import": "2.25.4",
+    "eslint-plugin-markdown": "2.2.1",
+    "eslint-plugin-node": "11.1.0",
+    "eslint-plugin-promise": "5.2.0",
+    "eslint-plugin-standard": "4.1.0",
+    "mocha": "9.2.1",
+    "nyc": "15.1.0"
+  },
+  "engines": {
+    "node": ">= 0.6"
+  },
+  "files": [
+    "LICENSE",
+    "HISTORY.md",
+    "index.js"
+  ],
+  "scripts": {
+    "lint": "eslint .",
+    "test": "mocha --reporter spec --check-leaks --bail test/",
+    "test:debug": "mocha --reporter spec --check-leaks --inspect --inspect-brk test/",
+    "test-ci": "nyc --reporter=lcovonly --reporter=text npm test",
+    "test-cov": "nyc --reporter=html --reporter=text npm test"
+  },
+  "keywords": [
+    "content",
+    "type",
+    "checking"
+  ]
+}
diff --git a/backend/node_modules/unpipe/HISTORY.md b/backend/node_modules/unpipe/HISTORY.md
new file mode 100644
index 0000000..85e0f8d
--- /dev/null
+++ b/backend/node_modules/unpipe/HISTORY.md
@@ -0,0 +1,4 @@
+1.0.0 / 2015-06-14
+==================
+
+  * Initial release
diff --git a/backend/node_modules/unpipe/LICENSE b/backend/node_modules/unpipe/LICENSE
new file mode 100644
index 0000000..aed0138
--- /dev/null
+++ b/backend/node_modules/unpipe/LICENSE
@@ -0,0 +1,22 @@
+(The MIT License)
+
+Copyright (c) 2015 Douglas Christopher Wilson <doug@somethingdoug.com>
+
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of this software and associated documentation files (the
+'Software'), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sublicense, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to
+the following conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
diff --git a/backend/node_modules/unpipe/README.md b/backend/node_modules/unpipe/README.md
new file mode 100644
index 0000000..e536ad2
--- /dev/null
+++ b/backend/node_modules/unpipe/README.md
@@ -0,0 +1,43 @@
+# unpipe
+
+[![NPM Version][npm-image]][npm-url]
+[![NPM Downloads][downloads-image]][downloads-url]
+[![Node.js Version][node-image]][node-url]
+[![Build Status][travis-image]][travis-url]
+[![Test Coverage][coveralls-image]][coveralls-url]
+
+Unpipe a stream from all destinations.
+
+## Installation
+
+```sh
+$ npm install unpipe
+```
+
+## API
+
+```js
+var unpipe = require('unpipe')
+```
+
+### unpipe(stream)
+
+Unpipes all destinations from a given stream. With stream 2+, this is
+equivalent to `stream.unpipe()`. When used with streams 1 style streams
+(typically Node.js 0.8 and below), this module attempts to undo the
+actions done in `stream.pipe(dest)`.
+
+## License
+
+[MIT](LICENSE)
+
+[npm-image]: https://img.shields.io/npm/v/unpipe.svg
+[npm-url]: https://npmjs.org/package/unpipe
+[node-image]: https://img.shields.io/node/v/unpipe.svg
+[node-url]: http://nodejs.org/download/
+[travis-image]: https://img.shields.io/travis/stream-utils/unpipe.svg
+[travis-url]: https://travis-ci.org/stream-utils/unpipe
+[coveralls-image]: https://img.shields.io/coveralls/stream-utils/unpipe.svg
+[coveralls-url]: https://coveralls.io/r/stream-utils/unpipe?branch=master
+[downloads-image]: https://img.shields.io/npm/dm/unpipe.svg
+[downloads-url]: https://npmjs.org/package/unpipe
diff --git a/backend/node_modules/unpipe/index.js b/backend/node_modules/unpipe/index.js
new file mode 100644
index 0000000..15c3d97
--- /dev/null
+++ b/backend/node_modules/unpipe/index.js
@@ -0,0 +1,69 @@
+/*!
+ * unpipe
+ * Copyright(c) 2015 Douglas Christopher Wilson
+ * MIT Licensed
+ */
+
+'use strict'
+
+/**
+ * Module exports.
+ * @public
+ */
+
+module.exports = unpipe
+
+/**
+ * Determine if there are Node.js pipe-like data listeners.
+ * @private
+ */
+
+function hasPipeDataListeners(stream) {
+  var listeners = stream.listeners('data')
+
+  for (var i = 0; i < listeners.length; i++) {
+    if (listeners[i].name === 'ondata') {
+      return true
+    }
+  }
+
+  return false
+}
+
+/**
+ * Unpipe a stream from all destinations.
+ *
+ * @param {object} stream
+ * @public
+ */
+
+function unpipe(stream) {
+  if (!stream) {
+    throw new TypeError('argument stream is required')
+  }
+
+  if (typeof stream.unpipe === 'function') {
+    // new-style
+    stream.unpipe()
+    return
+  }
+
+  // Node.js 0.8 hack
+  if (!hasPipeDataListeners(stream)) {
+    return
+  }
+
+  var listener
+  var listeners = stream.listeners('close')
+
+  for (var i = 0; i < listeners.length; i++) {
+    listener = listeners[i]
+
+    if (listener.name !== 'cleanup' && listener.name !== 'onclose') {
+      continue
+    }
+
+    // invoke the listener
+    listener.call(stream)
+  }
+}
diff --git a/backend/node_modules/unpipe/package.json b/backend/node_modules/unpipe/package.json
new file mode 100644
index 0000000..a2b7358
--- /dev/null
+++ b/backend/node_modules/unpipe/package.json
@@ -0,0 +1,27 @@
+{
+  "name": "unpipe",
+  "description": "Unpipe a stream from all destinations",
+  "version": "1.0.0",
+  "author": "Douglas Christopher Wilson <doug@somethingdoug.com>",
+  "license": "MIT",
+  "repository": "stream-utils/unpipe",
+  "devDependencies": {
+    "istanbul": "0.3.15",
+    "mocha": "2.2.5",
+    "readable-stream": "1.1.13"
+  },
+  "files": [
+    "HISTORY.md",
+    "LICENSE",
+    "README.md",
+    "index.js"
+  ],
+  "engines": {
+    "node": ">= 0.8"
+  },
+  "scripts": {
+    "test": "mocha --reporter spec --bail --check-leaks test/",
+    "test-cov": "istanbul cover node_modules/mocha/bin/_mocha -- --reporter dot --check-leaks test/",
+    "test-travis": "istanbul cover node_modules/mocha/bin/_mocha --report lcovonly -- --reporter spec --check-leaks test/"
+  }
+}
diff --git a/backend/node_modules/vary/HISTORY.md b/backend/node_modules/vary/HISTORY.md
new file mode 100644
index 0000000..f6cbcf7
--- /dev/null
+++ b/backend/node_modules/vary/HISTORY.md
@@ -0,0 +1,39 @@
+1.1.2 / 2017-09-23
+==================
+
+  * perf: improve header token parsing speed
+
+1.1.1 / 2017-03-20
+==================
+
+  * perf: hoist regular expression
+
+1.1.0 / 2015-09-29
+==================
+
+  * Only accept valid field names in the `field` argument
+    - Ensures the resulting string is a valid HTTP header value
+
+1.0.1 / 2015-07-08
+==================
+
+  * Fix setting empty header from empty `field`
+  * perf: enable strict mode
+  * perf: remove argument reassignments
+
+1.0.0 / 2014-08-10
+==================
+
+  * Accept valid `Vary` header string as `field`
+  * Add `vary.append` for low-level string manipulation
+  * Move to `jshttp` orgainzation
+
+0.1.0 / 2014-06-05
+==================
+
+  * Support array of fields to set
+
+0.0.0 / 2014-06-04
+==================
+
+  * Initial release
diff --git a/backend/node_modules/vary/LICENSE b/backend/node_modules/vary/LICENSE
new file mode 100644
index 0000000..84441fb
--- /dev/null
+++ b/backend/node_modules/vary/LICENSE
@@ -0,0 +1,22 @@
+(The MIT License)
+
+Copyright (c) 2014-2017 Douglas Christopher Wilson
+
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of this software and associated documentation files (the
+'Software'), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sublicense, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to
+the following conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
diff --git a/backend/node_modules/vary/README.md b/backend/node_modules/vary/README.md
new file mode 100644
index 0000000..cc000b3
--- /dev/null
+++ b/backend/node_modules/vary/README.md
@@ -0,0 +1,101 @@
+# vary
+
+[![NPM Version][npm-image]][npm-url]
+[![NPM Downloads][downloads-image]][downloads-url]
+[![Node.js Version][node-version-image]][node-version-url]
+[![Build Status][travis-image]][travis-url]
+[![Test Coverage][coveralls-image]][coveralls-url]
+
+Manipulate the HTTP Vary header
+
+## Installation
+
+This is a [Node.js](https://nodejs.org/en/) module available through the
+[npm registry](https://www.npmjs.com/). Installation is done using the
+[`npm install` command](https://docs.npmjs.com/getting-started/installing-npm-packages-locally): 
+
+```sh
+$ npm install vary
+```
+
+## API
+
+<!-- eslint-disable no-unused-vars -->
+
+```js
+var vary = require('vary')
+```
+
+### vary(res, field)
+
+Adds the given header `field` to the `Vary` response header of `res`.
+This can be a string of a single field, a string of a valid `Vary`
+header, or an array of multiple fields.
+
+This will append the header if not already listed, otherwise leaves
+it listed in the current location.
+
+<!-- eslint-disable no-undef -->
+
+```js
+// Append "Origin" to the Vary header of the response
+vary(res, 'Origin')
+```
+
+### vary.append(header, field)
+
+Adds the given header `field` to the `Vary` response header string `header`.
+This can be a string of a single field, a string of a valid `Vary` header,
+or an array of multiple fields.
+
+This will append the header if not already listed, otherwise leaves
+it listed in the current location. The new header string is returned.
+
+<!-- eslint-disable no-undef -->
+
+```js
+// Get header string appending "Origin" to "Accept, User-Agent"
+vary.append('Accept, User-Agent', 'Origin')
+```
+
+## Examples
+
+### Updating the Vary header when content is based on it
+
+```js
+var http = require('http')
+var vary = require('vary')
+
+http.createServer(function onRequest (req, res) {
+  // about to user-agent sniff
+  vary(res, 'User-Agent')
+
+  var ua = req.headers['user-agent'] || ''
+  var isMobile = /mobi|android|touch|mini/i.test(ua)
+
+  // serve site, depending on isMobile
+  res.setHeader('Content-Type', 'text/html')
+  res.end('You are (probably) ' + (isMobile ? '' : 'not ') + 'a mobile user')
+})
+```
+
+## Testing
+
+```sh
+$ npm test
+```
+
+## License
+
+[MIT](LICENSE)
+
+[npm-image]: https://img.shields.io/npm/v/vary.svg
+[npm-url]: https://npmjs.org/package/vary
+[node-version-image]: https://img.shields.io/node/v/vary.svg
+[node-version-url]: https://nodejs.org/en/download
+[travis-image]: https://img.shields.io/travis/jshttp/vary/master.svg
+[travis-url]: https://travis-ci.org/jshttp/vary
+[coveralls-image]: https://img.shields.io/coveralls/jshttp/vary/master.svg
+[coveralls-url]: https://coveralls.io/r/jshttp/vary
+[downloads-image]: https://img.shields.io/npm/dm/vary.svg
+[downloads-url]: https://npmjs.org/package/vary
diff --git a/backend/node_modules/vary/index.js b/backend/node_modules/vary/index.js
new file mode 100644
index 0000000..5b5e741
--- /dev/null
+++ b/backend/node_modules/vary/index.js
@@ -0,0 +1,149 @@
+/*!
+ * vary
+ * Copyright(c) 2014-2017 Douglas Christopher Wilson
+ * MIT Licensed
+ */
+
+'use strict'
+
+/**
+ * Module exports.
+ */
+
+module.exports = vary
+module.exports.append = append
+
+/**
+ * RegExp to match field-name in RFC 7230 sec 3.2
+ *
+ * field-name    = token
+ * token         = 1*tchar
+ * tchar         = "!" / "#" / "$" / "%" / "&" / "'" / "*"
+ *               / "+" / "-" / "." / "^" / "_" / "`" / "|" / "~"
+ *               / DIGIT / ALPHA
+ *               ; any VCHAR, except delimiters
+ */
+
+var FIELD_NAME_REGEXP = /^[!#$%&'*+\-.^_`|~0-9A-Za-z]+$/
+
+/**
+ * Append a field to a vary header.
+ *
+ * @param {String} header
+ * @param {String|Array} field
+ * @return {String}
+ * @public
+ */
+
+function append (header, field) {
+  if (typeof header !== 'string') {
+    throw new TypeError('header argument is required')
+  }
+
+  if (!field) {
+    throw new TypeError('field argument is required')
+  }
+
+  // get fields array
+  var fields = !Array.isArray(field)
+    ? parse(String(field))
+    : field
+
+  // assert on invalid field names
+  for (var j = 0; j < fields.length; j++) {
+    if (!FIELD_NAME_REGEXP.test(fields[j])) {
+      throw new TypeError('field argument contains an invalid header name')
+    }
+  }
+
+  // existing, unspecified vary
+  if (header === '*') {
+    return header
+  }
+
+  // enumerate current values
+  var val = header
+  var vals = parse(header.toLowerCase())
+
+  // unspecified vary
+  if (fields.indexOf('*') !== -1 || vals.indexOf('*') !== -1) {
+    return '*'
+  }
+
+  for (var i = 0; i < fields.length; i++) {
+    var fld = fields[i].toLowerCase()
+
+    // append value (case-preserving)
+    if (vals.indexOf(fld) === -1) {
+      vals.push(fld)
+      val = val
+        ? val + ', ' + fields[i]
+        : fields[i]
+    }
+  }
+
+  return val
+}
+
+/**
+ * Parse a vary header into an array.
+ *
+ * @param {String} header
+ * @return {Array}
+ * @private
+ */
+
+function parse (header) {
+  var end = 0
+  var list = []
+  var start = 0
+
+  // gather tokens
+  for (var i = 0, len = header.length; i < len; i++) {
+    switch (header.charCodeAt(i)) {
+      case 0x20: /*   */
+        if (start === end) {
+          start = end = i + 1
+        }
+        break
+      case 0x2c: /* , */
+        list.push(header.substring(start, end))
+        start = end = i + 1
+        break
+      default:
+        end = i + 1
+        break
+    }
+  }
+
+  // final token
+  list.push(header.substring(start, end))
+
+  return list
+}
+
+/**
+ * Mark that a request is varied on a header field.
+ *
+ * @param {Object} res
+ * @param {String|Array} field
+ * @public
+ */
+
+function vary (res, field) {
+  if (!res || !res.getHeader || !res.setHeader) {
+    // quack quack
+    throw new TypeError('res argument is required')
+  }
+
+  // get existing header
+  var val = res.getHeader('Vary') || ''
+  var header = Array.isArray(val)
+    ? val.join(', ')
+    : String(val)
+
+  // set new header
+  if ((val = append(header, field))) {
+    res.setHeader('Vary', val)
+  }
+}
diff --git a/backend/node_modules/vary/package.json b/backend/node_modules/vary/package.json
new file mode 100644
index 0000000..028f72a
--- /dev/null
+++ b/backend/node_modules/vary/package.json
@@ -0,0 +1,43 @@
+{
+  "name": "vary",
+  "description": "Manipulate the HTTP Vary header",
+  "version": "1.1.2",
+  "author": "Douglas Christopher Wilson <doug@somethingdoug.com>",
+  "license": "MIT",
+  "keywords": [
+    "http",
+    "res",
+    "vary"
+  ],
+  "repository": "jshttp/vary",
+  "devDependencies": {
+    "beautify-benchmark": "0.2.4",
+    "benchmark": "2.1.4",
+    "eslint": "3.19.0",
+    "eslint-config-standard": "10.2.1",
+    "eslint-plugin-import": "2.7.0",
+    "eslint-plugin-markdown": "1.0.0-beta.6",
+    "eslint-plugin-node": "5.1.1",
+    "eslint-plugin-promise": "3.5.0",
+    "eslint-plugin-standard": "3.0.1",
+    "istanbul": "0.4.5",
+    "mocha": "2.5.3",
+    "supertest": "1.1.0"
+  },
+  "files": [
+    "HISTORY.md",
+    "LICENSE",
+    "README.md",
+    "index.js"
+  ],
+  "engines": {
+    "node": ">= 0.8"
+  },
+  "scripts": {
+    "bench": "node benchmark/index.js",
+    "lint": "eslint --plugin markdown --ext js,md .",
+    "test": "mocha --reporter spec --bail --check-leaks test/",
+    "test-cov": "istanbul cover node_modules/mocha/bin/_mocha -- --reporter dot --check-leaks test/",
+    "test-travis": "istanbul cover node_modules/mocha/bin/_mocha --report lcovonly -- --reporter spec --check-leaks test/"
+  }
+}
diff --git a/backend/node_modules/wrappy/LICENSE b/backend/node_modules/wrappy/LICENSE
new file mode 100644
index 0000000..19129e3
--- /dev/null
+++ b/backend/node_modules/wrappy/LICENSE
@@ -0,0 +1,15 @@
+The ISC License
+
+Copyright (c) Isaac Z. Schlueter and Contributors
+
+Permission to use, copy, modify, and/or distribute this software for any
+purpose with or without fee is hereby granted, provided that the above
+copyright notice and this permission notice appear in all copies.
+
+THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR
+IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
diff --git a/backend/node_modules/wrappy/README.md b/backend/node_modules/wrappy/README.md
new file mode 100644
index 0000000..98eab25
--- /dev/null
+++ b/backend/node_modules/wrappy/README.md
@@ -0,0 +1,36 @@
+# wrappy
+
+Callback wrapping utility
+
+## USAGE
+
+```javascript
+var wrappy = require("wrappy")
+
+// var wrapper = wrappy(wrapperFunction)
+
+// make sure a cb is called only once
+// See also: http://npm.im/once for this specific use case
+var once = wrappy(function (cb) {
+  var called = false
+  return function () {
+    if (called) return
+    called = true
+    return cb.apply(this, arguments)
+  }
+})
+
+function printBoo () {
+  console.log('boo')
+}
+// has some rando property
+printBoo.iAmBooPrinter = true
+
+var onlyPrintOnce = once(printBoo)
+
+onlyPrintOnce() // prints 'boo'
+onlyPrintOnce() // does nothing
+
+// random property is retained!
+assert.equal(onlyPrintOnce.iAmBooPrinter, true)
+```
diff --git a/backend/node_modules/wrappy/package.json b/backend/node_modules/wrappy/package.json
new file mode 100644
index 0000000..1307520
--- /dev/null
+++ b/backend/node_modules/wrappy/package.json
@@ -0,0 +1,29 @@
+{
+  "name": "wrappy",
+  "version": "1.0.2",
+  "description": "Callback wrapping utility",
+  "main": "wrappy.js",
+  "files": [
+    "wrappy.js"
+  ],
+  "directories": {
+    "test": "test"
+  },
+  "dependencies": {},
+  "devDependencies": {
+    "tap": "^2.3.1"
+  },
+  "scripts": {
+    "test": "tap --coverage test/*.js"
+  },
+  "repository": {
+    "type": "git",
+    "url": "https://github.com/npm/wrappy"
+  },
+  "author": "Isaac Z. Schlueter <i@izs.me> (http://blog.izs.me/)",
+  "license": "ISC",
+  "bugs": {
+    "url": "https://github.com/npm/wrappy/issues"
+  },
+  "homepage": "https://github.com/npm/wrappy"
+}
diff --git a/backend/node_modules/wrappy/wrappy.js b/backend/node_modules/wrappy/wrappy.js
new file mode 100644
index 0000000..bb7e7d6
--- /dev/null
+++ b/backend/node_modules/wrappy/wrappy.js
@@ -0,0 +1,33 @@
+// Returns a wrapper function that returns a wrapped callback
+// The wrapper function should do some stuff, and return a
+// presumably different callback function.
+// This makes sure that own properties are retained, so that
+// decorations and such are not lost along the way.
+module.exports = wrappy
+function wrappy (fn, cb) {
+  if (fn && cb) return wrappy(fn)(cb)
+
+  if (typeof fn !== 'function')
+    throw new TypeError('need wrapper function')
+
+  Object.keys(fn).forEach(function (k) {
+    wrapper[k] = fn[k]
+  })
+
+  return wrapper
+
+  function wrapper() {
+    var args = new Array(arguments.length)
+    for (var i = 0; i < args.length; i++) {
+      args[i] = arguments[i]
+    }
+    var ret = fn.apply(this, args)
+    var cb = args[args.length-1]
+    if (typeof ret === 'function' && ret !== cb) {
+      Object.keys(cb).forEach(function (k) {
+        ret[k] = cb[k]
+      })
+    }
+    return ret
+  }
+}
diff --git a/backend/package-lock.json b/backend/package-lock.json
new file mode 100644
index 0000000..b9772c5
--- /dev/null
+++ b/backend/package-lock.json
@@ -0,0 +1,818 @@
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+  "version": "1.0.0",
+  "lockfileVersion": 3,
+  "requires": true,
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+      }
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+      "dependencies": {
+        "mime-types": "^3.0.0",
+        "negotiator": "^1.0.0"
+      },
+      "engines": {
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+        "type-is": "^2.0.0"
+      },
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+        "fresh": "^2.0.0",
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+        "mime-types": "^3.0.0"
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+    },
+    "node_modules/vary": {
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+      "engines": {
+        "node": ">= 0.8"
+      }
+    },
+    "node_modules/wrappy": {
+      "version": "1.0.2",
+      "resolved": "https://registry.npmjs.org/wrappy/-/wrappy-1.0.2.tgz",
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+    }
+  }
+}
+
diff --git a/backend/package.json b/backend/package.json
new file mode 100644
index 0000000..679139a
--- /dev/null
+++ b/backend/package.json
@@ -0,0 +1,21 @@
+{
+  "name": "backend",
+  "version": "1.0.0",
+  "description": "",
+  "main": "index.js",
+  "scripts": {
+    "test": "echo \"Error: no test specified\" && exit 1"
+  },
+  "keywords": [],
+  "author": "",
+  "license": "ISC",
+  "dependencies": {
+    "body-parser": "^2.2.0",
+    "cors": "^2.8.5",
+    "dotenv": "^17.2.2",
+    "express": "^5.1.0",
+    "nodemailer": "^7.0.6"
+  }
+}
+
+
diff --git a/backend/server.js b/backend/server.js
new file mode 100644
index 0000000..de6e71a
--- /dev/null
+++ b/backend/server.js
@@ -0,0 +1,52 @@
+const express = require("express");
+const nodemailer = require("nodemailer");
+const cors = require("cors");
+require("dotenv").config();
+
+const app = express();
+app.use(express.json());
+app.use(cors());
+
+// Configuração do Nodemailer
+const transporter = nodemailer.createTransport({
+    host: "smtp.gmail.com",
+    port: 587,
+    secure: false, 
+    auth: {
+        user: process.env.SMTP_USER, // Usuário: colciclab@uesc.br
+        pass: process.env.SMTP_PASS, // Senha de App de colciclab@uesc.br
+    },
+});
+
+// Endpoint da API para enviar a reserva
+app.post("/enviar-reserva", async (req, res) => {
+    const { emailProfessor, corpoEmail } = req.body;
+
+    if (!emailProfessor || !corpoEmail) {
+        return res.status(400).json({ message: "Campos obrigatórios ausentes." });
+    }
+
+    const mailOptions = {
+        from: `"Reserva de Laboratório" <${process.env.SMTP_USER}>`, // Remetente é o próprio colegiado
+        to: process.env.SMTP_USER, // O destinatário é o próprio colegiado (para receber a notificação)
+        
+        // Se o colegiado clicar em "Responder", a resposta irá para o "professor"
+        replyTo: emailProfessor, 
+
+        subject: "Nova Solicitação de Reserva de Laboratório",
+        text: corpoEmail,
+    };
+
+    try {
+        await transporter.sendMail(mailOptions);
+        res.status(200).json({ message: "Sua solicitação foi enviada com sucesso!" });
+    } catch (error) {
+        console.error("Erro ao enviar e-mail:", error);
+        res.status(500).json({ message: "Ocorreu um erro ao enviar sua solicitação. Tente novamente mais tarde." });
+    }
+});
+
+const PORT = 3001;
+app.listen(PORT, () => {
+    console.log(`Servidor rodando na porta ${PORT}`);
+});
diff --git a/calendario/index.html b/calendario/index.html
deleted file mode 100644
index dbe0d67..0000000
--- a/calendario/index.html
+++ /dev/null
@@ -1,368 +0,0 @@
-<!DOCTYPE html>
-<html lang="pt-br">
-	<head>
-		<meta charset="UTF-8" />
-		<meta http-equiv="X-UA-Compatible" content="IE=edge" />
-		<meta name="viewport" content="width=device-width, initial-scale=1.0" />
-		<title>Calendário 2022 | COLCIC</title>
-
-		<link
-			rel="shortcut icon"
-			href="../assets/favicon.png"
-			type="image/x-icon"
-		/>
-		<link rel="stylesheet" type="text/css" href="../css/default.css" />
-		<link rel="stylesheet" type="text/css" href="../css/reset.css" />
-		<link rel="stylesheet" type="text/css" href="../css/header.css" />
-		<link rel="stylesheet" type="text/css" href="../css/buttons.css" />
-		<link
-			rel="stylesheet"
-			type="text/css"
-			href="../css/pages/calendario.css"
-		/>
-		<link rel="stylesheet" type="text/css" href="../css/footer.css" />
-		<link rel="stylesheet" type="text/css" href="../css/goToTop.css" />
-
-		<!-- Primary Meta Tags -->
-		<title>COLCIC | Colegiado de Ciência da Computação</title>
-		<meta
-			name="title"
-			content="COLCIC | Colegiado de Ciência da Computação"
-		/>
-		<meta
-			name="description"
-			content="O Curso de Bacharelado em Ciência da Computação da Universidade Estadual de Santa Cruz provê uma formação que capacita o profissional para a solução de problemas do mundo real, por meio da construção de modelos computacionais e de sua implementação."
-		/>
-
-		<!-- Open Graph / Facebook -->
-		<meta property="og:type" content="website" />
-		<meta property="og:url" content="https://igorroc.github.io/colcic" />
-		<meta
-			property="og:title"
-			content="COLCIC | Colegiado de Ciência da Computação"
-		/>
-		<meta
-			property="og:description"
-			content="O Curso de Bacharelado em Ciência da Computação da Universidade Estadual de Santa Cruz provê uma formação que capacita o profissional para a solução de problemas do mundo real, por meio da construção de modelos computacionais e de sua implementação."
-		/>
-		<meta
-			property="og:image"
-			content="https://raw.githubusercontent.com/igorroc/colcic/main/assets/banner.png"
-		/>
-
-		<!-- Twitter -->
-		<meta property="twitter:card" content="summary_large_image" />
-		<meta
-			property="twitter:url"
-			content="https://igorroc.github.io/colcic"
-		/>
-		<meta
-			property="twitter:title"
-			content="COLCIC | Colegiado de Ciência da Computação"
-		/>
-		<meta
-			property="twitter:description"
-			content="O Curso de Bacharelado em Ciência da Computação da Universidade Estadual de Santa Cruz provê uma formação que capacita o profissional para a solução de problemas do mundo real, por meio da construção de modelos computacionais e de sua implementação."
-		/>
-		<meta
-			property="twitter:image"
-			content="https://raw.githubusercontent.com/igorroc/colcic/main/assets/banner.png"
-		/>
-
-		<script src="https://code.iconify.design/iconify-icon/1.0.1/iconify-icon.min.js"></script>
-	</head>
-
-	<body>
-		<header>
-			<div class="wrapper">
-				<div class="wrapperContent">
-					<a class="logo" href="../">
-						<img src="../assets/logo.png" alt="Logo COLCIC" />
-					</a>
-					<div class="navList">
-						<ul>
-							<a href="../">Início</a>
-							<li class="dropdown">
-								<span class="title">
-									<span> Sobre o curso </span>
-									<iconify-icon
-										icon="dashicons:arrow-down-alt2"
-									></iconify-icon>
-								</span>
-								<ul>
-									<a href="../sobre"
-										>Ciência da Computação na UESC</a
-									>
-									<a href="../disciplinas"
-										>Programa das Disciplinas</a
-									>
-									<a
-										target="_blank"
-										href="../files/comp_curriculares/matriz_cic_2012.pdf"
-									>
-										<span> Fluxograma do Curso </span>
-										<iconify-icon
-											icon="akar-icons:download"
-										></iconify-icon>
-									</a>
-								</ul>
-							</li>
-							<li class="dropdown">
-								<span class="title">
-									<span> Apoio ao estudante </span>
-									<iconify-icon
-										icon="dashicons:arrow-down-alt2"
-									></iconify-icon>
-								</span>
-								<ul>
-									<a
-										target="_blank"
-										href="http://www.prograd.uesc.br/PortalSagres/Acesso.aspx"
-									>
-										<span> Portal Acadêmico </span>
-										<iconify-icon
-											icon="akar-icons:link-chain"
-										></iconify-icon>
-									</a>
-									<a
-										target="_blank"
-										href="https://igorroc.github.io/finalcountdown/"
-									>
-										<span>
-											Calculadora de Prova Final
-										</span>
-										<iconify-icon
-											icon="akar-icons:link-chain"
-										></iconify-icon>
-									</a>
-									<a
-										target="_blank"
-										href="https://uesc.ilrocha.com/emails/"
-									>
-										<span> Email dos professores </span>
-										<iconify-icon
-											icon="akar-icons:link-chain"
-										></iconify-icon>
-									</a>
-									<a href="../aproveitamentos">
-										Aproveitamento de Estudos
-									</a>
-									<a href="../matricula" class="displayNone">
-										Matrícula para Veteranos
-									</a>
-									<a href="../complementares">
-										Atividades complementares (Barema)
-									</a>
-									<a
-										target="_blank"
-										href="../files/comp_curriculares/regulamentoestagio.pdf"
-									>
-										<span> Regulamento do Estágio </span>
-										<iconify-icon
-											icon="akar-icons:download"
-										></iconify-icon>
-									</a>
-								</ul>
-							</li>
-							<li active class="dropdown">
-								<span class="title">
-									<span> Colegiado </span>
-									<iconify-icon
-										icon="dashicons:arrow-down-alt2"
-									></iconify-icon>
-								</span>
-								<ul>
-									<a href="../colegiado">
-										Composição do colegiado
-									</a>
-									<a active href="../calendario">
-										Calendário de Reuniões
-									</a>
-									<a
-										target="_blank"
-										href="http://nbcgib.uesc.br/dcetweb/"
-									>
-										<span>
-											Área para membros do COLCIC
-										</span>
-										<iconify-icon
-											icon="akar-icons:link-chain"
-										></iconify-icon>
-									</a>
-								</ul>
-							</li>
-							<li class="dropdown">
-								<span class="title">
-									<span> Diversos </span>
-									<iconify-icon
-										icon="dashicons:arrow-down-alt2"
-									></iconify-icon>
-								</span>
-								<ul>
-									<a
-										target="_blank"
-										href="http://sinform.tecnojr.com.br/"
-									>
-										<span> SINFORM </span>
-										<iconify-icon
-											icon="akar-icons:link-chain"
-										></iconify-icon>
-									</a>
-
-									<a href="../licencas">
-										Licenças acadêmicas de Software
-									</a>
-								</ul>
-							</li>
-							<a
-								target="_blank"
-								href="http://www.uesc.br/dcet/index.php?item=conteudo_informatica.php"
-							>
-								<span>Docentes</span>
-								<iconify-icon
-									icon="akar-icons:link-chain"
-								></iconify-icon>
-							</a>
-							<a href="../contato">Contato</a>
-						</ul>
-					</div>
-					<button class="iconMenu" onclick="toggleNavList()">
-						<div>
-							<span></span>
-							<span></span>
-							<span></span>
-						</div>
-					</button>
-				</div>
-			</div>
-			<div id="top"></div>
-		</header>
-
-		<a id="goToTop" href="#top" class="hide">
-			<iconify-icon icon="akar-icons:arrow-up"></iconify-icon>
-		</a>
-
-		<main>
-			<section variant>
-				<div class="MaxWidthWrapper">
-					<div class="mainWrapper">
-						<div class="mainContent">
-							<h1>
-								Calendário de <br />
-								<b>Reuniões para 2022</b>
-							</h1>
-						</div>
-						<div class="mainContentPhoto">
-							<img src="../assets/icon_calendar.png" alt="" />
-						</div>
-					</div>
-				</div>
-			</section>
-			<section>
-				<div class="MaxWidthWrapper">
-					<div class="composicao">
-						<h2>Calendário</h2>
-						<div class="centerTable">
-							<div class="wrapperTable">
-								<div class="table" id="tableCalendario">
-									<div class="header">
-										<h3>Mês</h3>
-										<h3>Dia do mês</h3>
-										<h3>Dia da semana</h3>
-									</div>
-									<div class="content"></div>
-								</div>
-							</div>
-						</div>
-					</div>
-				</div>
-			</section>
-		</main>
-
-		<footer>
-			<div class="footerWave">
-				<div class="left"></div>
-				<a class="footerLogo" href="#top">
-					<div class="logo">
-						<img
-							src="../assets/footerLogo.png"
-							alt="Logo do curso de Ciência da Computação"
-						/>
-					</div>
-				</a>
-				<div class="right"></div>
-			</div>
-			<div class="MaxWidthWrapper">
-				<div class="footerWrapper">
-					<div class="footerFloat">
-						<div class="footerContent">
-							<h1>Contato</h1>
-							<ul>
-								<a
-									target="_blank"
-									href="https://goo.gl/maps/FKcmwBJ76WYrLQSj8"
-								>
-									<iconify-icon
-										icon="heroicons:map-pin-solid"
-									></iconify-icon>
-									<span>
-										UESC, Pavilhão do DCET, 1º andar
-									</span>
-								</a>
-								<a target="_blank" href="mailto:colcic@uesc.br">
-									<iconify-icon
-										icon="bi:envelope-fill"
-									></iconify-icon>
-									<span> colcic@uesc.br </span>
-								</a>
-								<a target="_blank" href="tel:7336805110">
-									<iconify-icon
-										icon="ant-design:phone-filled"
-									></iconify-icon>
-									<span> (73) 3680-5110 </span>
-								</a>
-								<a
-									target="_blank"
-									href="https://www.facebook.com/groups/colcic/"
-								>
-									<iconify-icon
-										icon="akar-icons:facebook-fill"
-									></iconify-icon>
-									<span> Facebook </span>
-								</a>
-							</ul>
-						</div>
-						<div class="footerContent">
-							<h1>Endereço</h1>
-							<a target="_blank" href="#" class="linkEndereco">
-								<p>
-									UNIVERSIDADE ESTADUAL DE SANTA CRUZ - UESC
-								</p>
-								<p>Campus Soane Nazaré de Andrade</p>
-								<p>Rodovia Jorge Amado, Km 16, Salobrinho</p>
-								<p>CEP 45662-900. Ilhéus-Bahia</p>
-							</a>
-						</div>
-					</div>
-
-					<div class="footerCopy">
-						<p>© 2022 - Todos os direitos reservados | COLCIC</p>
-						<p>
-							Desenvolvido por
-							<a
-								target="_blank"
-								href="https://ilrocha.com"
-								id="copyIgor"
-								>Igor Rocha</a
-							>
-						</p>
-					</div>
-				</div>
-			</div>
-		</footer>
-
-		<script src="../js/header.js"></script>
-		<script src="../js/calendario.js"></script>
-		<script src="../js/goToTop.js"></script>
-	</body>
-</html>
diff --git a/colegiado/index.html b/colegiado/index.html
index 5918abe..4d13a34 100644
--- a/colegiado/index.html
+++ b/colegiado/index.html
@@ -165,33 +165,7 @@
 									</a>
 								</ul>
 							</li>
-							<li active class="dropdown">
-								<span class="title">
-									<span> Colegiado </span>
-									<iconify-icon
-										icon="dashicons:arrow-down-alt2"
-									></iconify-icon>
-								</span>
-								<ul>
-									<a active href="../colegiado">
-										Composição do colegiado
-									</a>
-									<a href="../calendario">
-										Calendário de Reuniões
-									</a>
-									<a
-										target="_blank"
-										href="http://nbcgib.uesc.br/dcetweb/"
-									>
-										<span>
-											Área para membros do COLCIC
-										</span>
-										<iconify-icon
-											icon="akar-icons:link-chain"
-										></iconify-icon>
-									</a>
-								</ul>
-							</li>
+							
 							<li class="dropdown">
 								<span class="title">
 									<span> Diversos </span>
@@ -215,16 +189,10 @@
 									</a>
 								</ul>
 							</li>
-							<a
-								target="_blank"
-								href="http://www.uesc.br/dcet/index.php?item=conteudo_informatica.php"
-							>
-								<span>Docentes</span>
-								<iconify-icon
-									icon="akar-icons:link-chain"
-								></iconify-icon>
-							</a>
+
+							<a href="../colegiado"> Colegiado</a>
 							<a href="../contato">Contato</a>
+							<a href="../reserva">Reservas</a>
 						</ul>
 					</div>
 					<button class="iconMenu" onclick="toggleNavList()">
diff --git a/complementares/index.html b/complementares/index.html
index b057ae3..d6792ff 100644
--- a/complementares/index.html
+++ b/complementares/index.html
@@ -165,33 +165,7 @@
 									</a>
 								</ul>
 							</li>
-							<li class="dropdown">
-								<span class="title">
-									<span> Colegiado </span>
-									<iconify-icon
-										icon="dashicons:arrow-down-alt2"
-									></iconify-icon>
-								</span>
-								<ul>
-									<a href="../colegiado">
-										Composição do colegiado
-									</a>
-									<a href="../calendario">
-										Calendário de Reuniões
-									</a>
-									<a
-										target="_blank"
-										href="http://nbcgib.uesc.br/dcetweb/"
-									>
-										<span>
-											Área para membros do COLCIC
-										</span>
-										<iconify-icon
-											icon="akar-icons:link-chain"
-										></iconify-icon>
-									</a>
-								</ul>
-							</li>
+
 							<li class="dropdown">
 								<span class="title">
 									<span> Diversos </span>
@@ -215,16 +189,10 @@
 									</a>
 								</ul>
 							</li>
-							<a
-								target="_blank"
-								href="http://www.uesc.br/dcet/index.php?item=conteudo_informatica.php"
-							>
-								<span>Docentes</span>
-								<iconify-icon
-									icon="akar-icons:link-chain"
-								></iconify-icon>
-							</a>
+
+							<a href="../colegiado"> Colegiado</a>
 							<a href="../contato">Contato</a>
+							<a href="../reserva">Reservas</a>
 						</ul>
 					</div>
 					<button class="iconMenu" onclick="toggleNavList()">
@@ -277,16 +245,23 @@ <h1>
 					<div class="instrucoes">
 						<h2>Instruções</h2>
 						<div class="text">
-							<p class="scrollAnimation">
-								Leia o procedimento abaixo. Preencha e imprima o
-								Barema clicando
-								<a
-									target="_blank"
-									href="http://nbcgib.uesc.br/colcic/baremacompl.html"
-									>aqui</a
-								>
-							</p>
 							<ol>
+								<li
+									class="scrollAnimation"
+									style="transition-delay: 0ms !important"
+								>
+									Preencha e gere o PDF do
+									<b
+										>Barema de Ativiaddes Complementares.</b
+									>
+									Faça uma cópia do modelo para preenchimento clicando
+									<a
+									target="_blank"
+									href="https://docs.google.com/spreadsheets/d/1URTjQdUb_4VHg7V-VUo53xPQexYkQwLijmIjwIvMxIU/edit?usp=sharing"
+									><b>aqui</b></a
+									> 
+									;
+								</li>
 								<li
 									class="scrollAnimation"
 									style="transition-delay: 0ms !important"
@@ -333,21 +308,29 @@ <h2>Instruções</h2>
 									style="transition-delay: 400ms !important"
 								>
 									Ao final,
-									<b>clique no botão "TOTAL HORAS"</b>, caso
-									seja 200 horas ou mais, imprima, junte aos
-									comprovantes e entre com Requisição no
-									Protocolo;
+									<b>some o TOTAL HORAS</b> e, caso
+									seja superior ou igual a 200 horas, imprima, junte aos
+									comprovantes e entre com a requisição via 
+									<a
+									target="_blank"
+									href="http://www.uesc.br/proad/index.php?item=conteudo_gera_requerimento_academico.php"
+									><b>Protoco Digital</b></a
+									> ou 
+									<a
+									target="_blank"
+									href="https://www.uesc.br/proad/index.php?item=conteudo_gerad_protocolo.php"
+									><b>Peticionamento Eletrônico</b></a>;
 								</li>
 								<li
 									class="scrollAnimation"
 									style="transition-delay: 500ms !important"
 								>
-									Solicite ao atendente do Protocolo dar "fé
-									pública" nas cópias dos comprovantes
-									conforme os originais, para
-									<b>autenticação</b>.
+									Agora é só aguardar a resposta do Colegiado ou
+									o lançamento das horas no Sistema Acadêmico.
+									Você pode conferir ao emitir o seu histórico!
 								</li>
 							</ol>
+
 						</div>
 					</div>
 				</div>
diff --git a/contato/index.html b/contato/index.html
index 519f76e..2e22a50 100644
--- a/contato/index.html
+++ b/contato/index.html
@@ -165,33 +165,7 @@
 									</a>
 								</ul>
 							</li>
-							<li class="dropdown">
-								<span class="title">
-									<span> Colegiado </span>
-									<iconify-icon
-										icon="dashicons:arrow-down-alt2"
-									></iconify-icon>
-								</span>
-								<ul>
-									<a href="../colegiado">
-										Composição do colegiado
-									</a>
-									<a href="../calendario">
-										Calendário de Reuniões
-									</a>
-									<a
-										target="_blank"
-										href="http://nbcgib.uesc.br/dcetweb/"
-									>
-										<span>
-											Área para membros do COLCIC
-										</span>
-										<iconify-icon
-											icon="akar-icons:link-chain"
-										></iconify-icon>
-									</a>
-								</ul>
-							</li>
+
 							<li class="dropdown">
 								<span class="title">
 									<span> Diversos </span>
@@ -215,16 +189,10 @@
 									</a>
 								</ul>
 							</li>
-							<a
-								target="_blank"
-								href="http://www.uesc.br/dcet/index.php?item=conteudo_informatica.php"
-							>
-								<span>Docentes</span>
-								<iconify-icon
-									icon="akar-icons:link-chain"
-								></iconify-icon>
-							</a>
+
+							<a href="../colegiado"> Colegiado</a>
 							<a active href="../contato">Contato</a>
+							<a href="../reserva">Reservas</a>
 						</ul>
 					</div>
 					<button class="iconMenu" onclick="toggleNavList()">
diff --git a/css/pages/reserva.css b/css/pages/reserva.css
new file mode 100644
index 0000000..570fdd8
--- /dev/null
+++ b/css/pages/reserva.css
@@ -0,0 +1,245 @@
+/* --- Estilos da página de reserva --- */
+#reservaForm {
+    display: flex;
+    flex-direction: column;
+    gap: 0.8rem;
+    max-width: 900px;   
+    margin: 0 auto;    
+    padding: 1rem;     
+}
+
+#reservaForm .emailField input {
+    background-color: #fff;       /* mesma cor de fundo */
+    border: 1px solid #ccc;       /* mesma borda */
+    border-radius: 8px;           /* mesmo arredondamento dos outros campos */
+    padding: 0.5rem 0.75rem;      /* preenchimento igual */
+    font-family: 'Montserrat', sans-serif; /* mesma fonte do site */
+    font-size: 1rem;              /* tamanho igual ao restante */
+    width: 100%;                  /* ocupa toda a largura do container */
+    box-sizing: border-box;       /* para o padding não quebrar layout */
+}
+
+.form-group {
+    display: flex;
+    flex-direction: column;
+    margin-bottom: 1rem;  
+
+}
+
+.form-group label {
+    margin-bottom: 0.4rem;
+    font-weight: 600;
+}
+
+.form-group input,
+.form-group textarea {
+    padding: 8px;
+    border-radius: 8px;
+    border: 1px solid #ccc;
+    box-sizing: border-box;
+}
+
+.form-row {
+    display: flex;
+    gap: 1rem;
+}
+
+.form-row .form-group {
+    flex: 1;
+}
+
+.button-wrapper {
+    text-align: right;
+}
+
+.addBtn {
+    background: #4e73ff;
+    color: white;
+    padding: 0.6rem 1rem;
+    border: none;
+    border-radius: 8px;
+    cursor: pointer;
+    margin-bottom: 1rem;
+}
+
+.reserva-header {
+    display: flex;
+    justify-content: space-between;
+    align-items: center;
+    margin-bottom: 1rem;
+}
+
+.reserva-header h3 {
+    font-size: 1.2rem;
+    font-weight: bold;
+    margin: 0;
+}
+
+.removeBtn {
+    background: #dc3545;
+    color: white;
+    border: none;
+    border-radius: 6px;
+    cursor: pointer;
+    font-size: 1.1em;
+    padding: 0.4rem 0.8rem;
+    align-items: center;
+    gap: 0.5rem;
+	display: inline-flex;  
+    width: auto !important;
+}
+
+.reserva-block {
+    position: relative;
+    border: 1.5px solid #ccc;
+    padding: 1rem;
+    border-radius: 10px;
+    background: #f9f9f9;
+    margin-bottom: 1rem;
+}
+
+.reserva-section {
+    border: 1px solid #ccc;
+    border-radius: 8px;
+    padding: 1rem 1.2rem;
+    margin-bottom: 1rem;
+    background: #fff;
+}
+
+.reserva-section legend {
+    font-weight: bold;
+    padding: 0 0.5rem;
+}
+
+
+/* --- Estilos gerais que estavam inline no HTML --- */
+
+.mainWrapper {
+    display: flex;
+    align-items: center;
+    justify-content: space-between;
+    gap: 100px;
+}
+
+.mainWrapper .mainContentPhoto {
+    display: block;
+    max-width: 35%;
+    width: auto;
+}
+
+.contact h2, .contact .contactWrapper .contactItem .contactInfo .title { 
+	color: #fff; 
+}
+
+.contact .contactWrapper .contactItem .contactInfo,
+.contact .contactWrapper .contactItem .contactInfo * {
+    color: #fff !important;
+}
+
+.contact h2 {
+    margin-bottom: 10px; /* espaço extra só abaixo do título */
+}
+
+.contact h2, 
+.contact .contactWrapper .contactItem .contactInfo .title {
+    font-weight: bold;
+}
+
+
+.contact .contactWrapper .contactItem .contactIcon {
+    background: rgba(170, 179, 120, 0.479) !important; /* amarelo ouro */
+}
+
+.mainWrapper .mainContentPhoto img {
+    width: 100%;
+    height: 100%;
+    object-fit: cover;
+}
+
+.mainContent {
+    width: 100%;
+    display: flex;
+    flex-direction: column;
+    gap: 20px;
+}
+
+.mainContent h1 {
+    font-size: 2em;
+    text-align: center;
+    margin-bottom: 1.5rem; 
+}
+
+.mainContent form {
+    display: flex;
+    flex-direction: column;
+    gap: 20px;
+}
+.mainContent form input,
+.mainContent form textarea {
+    background: none;
+    border: 1px solid #232323;
+    border-radius: 10px;
+    padding: 10px;
+}
+.mainContent form textarea {
+    resize: vertical;
+    min-height: 3em;
+}
+.mainContent form button {
+    border: none;
+    width: 100%;
+}
+.mainContent form button:hover ~ .tooltipMouse {
+    opacity: 1;
+    visibility: visible;
+}
+.contact {
+    display: flex;
+    flex-direction: column;
+    gap: 20px;
+}
+.contact .contactWrapper {
+    display: flex;
+    flex-direction: column;
+    gap: 15px;
+}
+.contact .contactWrapper .contactItem {
+    display: flex;
+    align-items: center;
+    gap: 15px;
+}
+.contact .contactWrapper .contactItem .contactIcon {
+    background: var(--primary-color);
+    border-radius: 50%;
+    min-width: 50px;
+    min-height: 50px;
+    display: flex;
+    align-items: center;
+    justify-content: center;
+}
+.contact .contactWrapper .contactItem .contactIcon iconify-icon {
+    font-size: 2em;
+    color: #FFD700;
+}
+.contact .contactWrapper .contactItem .contactInfo {
+    display: flex;
+    flex-direction: column;
+    gap: 5px;
+}
+
+/* --- Fonte Montserrat aplicada ao bloco de reserva --- */
+.reserva-texto {
+    font-family: 'Montserrat', sans-serif;
+    color: #fff; /* garante o mesmo contraste do bloco de ciência */
+}
+
+.reserva-texto h2 {
+    font-weight: 700; /* título forte */
+    font-size: 2rem;  /* mesmo tamanho do outro bloco */
+}
+
+.reserva-texto b {
+    font-weight: 600; /* igual ao destaque do outro bloco */
+}
+
+
diff --git a/css/slideShow.css b/css/slideShow.css
index 27805a1..d1a1e36 100644
--- a/css/slideShow.css
+++ b/css/slideShow.css
@@ -37,7 +37,7 @@
 	height: 100%;
 	min-height: 200px;
 	position: relative;
-	overflow: auto;
+	overflow: hidden;
 	display: flex;
 	align-items: center;
 	scroll-snap-type: x mandatory;
@@ -81,3 +81,8 @@
 	font-weight: 500;
 	text-align: center;
 }
+
+.slideShow .slide p .comment {
+	font-size: smaller;
+    font-style: italic;
+}
\ No newline at end of file
diff --git a/disciplinas/index.html b/disciplinas/index.html
index 74d8992..7d4b372 100644
--- a/disciplinas/index.html
+++ b/disciplinas/index.html
@@ -170,33 +170,7 @@
 									</a>
 								</ul>
 							</li>
-							<li class="dropdown">
-								<span class="title">
-									<span> Colegiado </span>
-									<iconify-icon
-										icon="dashicons:arrow-down-alt2"
-									></iconify-icon>
-								</span>
-								<ul>
-									<a href="../colegiado">
-										Composição do colegiado
-									</a>
-									<a href="../calendario">
-										Calendário de Reuniões
-									</a>
-									<a
-										target="_blank"
-										href="http://nbcgib.uesc.br/dcetweb/"
-									>
-										<span>
-											Área para membros do COLCIC
-										</span>
-										<iconify-icon
-											icon="akar-icons:link-chain"
-										></iconify-icon>
-									</a>
-								</ul>
-							</li>
+
 							<li class="dropdown">
 								<span class="title">
 									<span> Diversos </span>
@@ -220,16 +194,10 @@
 									</a>
 								</ul>
 							</li>
-							<a
-								target="_blank"
-								href="http://www.uesc.br/dcet/index.php?item=conteudo_informatica.php"
-							>
-								<span>Docentes</span>
-								<iconify-icon
-									icon="akar-icons:link-chain"
-								></iconify-icon>
-							</a>
+
+							<a href="../colegiado"> Colegiado</a>
 							<a href="../contato">Contato</a>
+							<a href="../reserva">Reservas</a>
 						</ul>
 					</div>
 					<button class="iconMenu" onclick="toggleNavList()">
diff --git a/files/horarios/COLCIC_Horarios_2023.1_VERSAO_1.0.pdf b/files/horarios/COLCIC_Horarios_2023.1_VERSAO_1.0.pdf
new file mode 100644
index 0000000..9c25b55
Binary files /dev/null and b/files/horarios/COLCIC_Horarios_2023.1_VERSAO_1.0.pdf differ
diff --git a/files/horarios/COLCIC_Horarios_2023.1_VERSAO_0.2.pdf b/files/horarios/COLCIC_Horarios_2023.1_VERSAO_1.1.pdf
similarity index 70%
rename from files/horarios/COLCIC_Horarios_2023.1_VERSAO_0.2.pdf
rename to files/horarios/COLCIC_Horarios_2023.1_VERSAO_1.1.pdf
index 55a5045..af086f5 100644
Binary files a/files/horarios/COLCIC_Horarios_2023.1_VERSAO_0.2.pdf and b/files/horarios/COLCIC_Horarios_2023.1_VERSAO_1.1.pdf differ
diff --git a/files/horarios/COLCIC_Horarios_2023.1_VERSAO_1.2.pdf b/files/horarios/COLCIC_Horarios_2023.1_VERSAO_1.2.pdf
new file mode 100644
index 0000000..daf0717
Binary files /dev/null and b/files/horarios/COLCIC_Horarios_2023.1_VERSAO_1.2.pdf differ
diff --git a/files/horarios/V_aluno_COLCIC-Horarios-2025.2.pdf b/files/horarios/V_aluno_COLCIC-Horarios-2025.2.pdf
new file mode 100644
index 0000000..c5d300b
Binary files /dev/null and b/files/horarios/V_aluno_COLCIC-Horarios-2025.2.pdf differ
diff --git a/index.html b/index.html
index 7c1628c..4926474 100644
--- a/index.html
+++ b/index.html
@@ -73,6 +73,7 @@
 		/>
 
 		<script src="https://code.iconify.design/iconify-icon/1.0.1/iconify-icon.min.js"></script>
+
 	</head>
 
 	<body>
@@ -101,13 +102,22 @@
 									>
 									<a
 										target="_blank"
-										href="../files/comp_curriculares/matriz_cic_2012.pdf"
+										href="files/comp_curriculares/matriz_cic_2012.pdf"
 									>
 										<span> Fluxograma do Curso </span>
 										<iconify-icon
 											icon="akar-icons:download"
 										></iconify-icon>
 									</a>
+									<a
+										target="_self"
+										href="#horarios"
+									>
+										<span> Horários </span>
+										<iconify-icon
+											icon="dashicons:calendar-alt"
+										></iconify-icon>
+									</a>
 								</ul>
 							</li>
 							<li class="dropdown">
@@ -158,7 +168,7 @@
 									</a>
 									<a
 										target="_blank"
-										href="../files/comp_curriculares/regulamentoestagio.pdf"
+										href="files/comp_curriculares/regulamentoestagio.pdf"
 									>
 										<span> Regulamento do Estágio </span>
 										<iconify-icon
@@ -167,33 +177,7 @@
 									</a>
 								</ul>
 							</li>
-							<li class="dropdown">
-								<span class="title">
-									<span> Colegiado </span>
-									<iconify-icon
-										icon="dashicons:arrow-down-alt2"
-									></iconify-icon>
-								</span>
-								<ul>
-									<a href="./colegiado">
-										Composição do colegiado
-									</a>
-									<a href="./calendario">
-										Calendário de Reuniões
-									</a>
-									<a
-										target="_blank"
-										href="http://nbcgib.uesc.br/dcetweb/"
-									>
-										<span>
-											Área para membros do COLCIC
-										</span>
-										<iconify-icon
-											icon="akar-icons:link-chain"
-										></iconify-icon>
-									</a>
-								</ul>
-							</li>
+	
 							<li class="dropdown">
 								<span class="title">
 									<span> Diversos </span>
@@ -216,16 +200,10 @@
 									</a>
 								</ul>
 							</li>
-							<a
-								target="_blank"
-								href="http://www.uesc.br/dcet/index.php?item=conteudo_informatica.php"
-							>
-								<span>Docentes</span>
-								<iconify-icon
-									icon="akar-icons:link-chain"
-								></iconify-icon>
-							</a>
+
+							<a href="./colegiado"> Colegiado</a>
 							<a href="./contato">Contato</a>
+							<a href="./reserva">Reservas</a>
 						</ul>
 					</div>
 					<button class="iconMenu" onclick="toggleNavList()">
@@ -249,7 +227,7 @@
 				<div class="MaxWidthWrapper">
 					<div class="mainWrapper">
 						<div class="mainContent">
-							<h2>Bem vindo(a) ao</h2>
+							<h2>Bem vindo(a) à página do</h2>
 							<h1>
 								Colegiado de <br />
 								<b>Ciência da Computação</b>
@@ -296,25 +274,25 @@ <h1>
 								<p>Discord</p>
 							</a>
 							<a
-								class="item"
-								href="https://t.me/+eXbZLjiXlyA0NDcx"
-								target="_blank"
-							>
-								<iconify-icon
-									icon="akar-icons:telegram-fill"
-								></iconify-icon>
-								<p>Telegram</p>
-							</a>
-							<a
-								class="item"
-								href="https://www.instagram.com/colcic_uesc/"
-								target="_blank"
+							class="item"
+							href="https://www.instagram.com/colcic_uesc/"
+							target="_blank"
 							>
-								<iconify-icon
-									icon="ant-design:instagram-filled"
-								></iconify-icon>
-								<p>Instagram</p>
-							</a>
+							<iconify-icon
+							icon="ant-design:instagram-filled"
+							></iconify-icon>
+							<p>Instagram</p>
+						</a>
+						<a
+							class="item"
+							href="https://www.facebook.com/colcic.uesc/"
+							target="_blank"
+						>
+							<iconify-icon
+								icon="akar-icons:facebook-fill"
+							></iconify-icon>
+							<p>Facebook</p>
+						</a>
 						</div>
 					</div>
 				</div>
@@ -322,64 +300,23 @@ <h1>
 			<section variant>
 				<div class="MaxWidthWrapper">
 					<div class="entidades">
-						<h1>Entidades</h1>
+						<h1>Instituições e unidades parceiras</h1>
 						<div class="cardList">
-							<div class="card scrollAnimation">
-								<img
-									src="./assets/entidades/tecno.png"
-									alt="Logo da TecnoJr"
-								/>
-								<h2>TecnoJr</h2>
-								<p>Associação Empresa Júnior de Computação</p>
-								<a
-									target="_blank"
-									href="https://tecnojr.com.br"
-								>
-									<span>Saiba mais</span>
-									<iconify-icon
-										icon="dashicons:arrow-right-alt2"
-									></iconify-icon>
-								</a>
-							</div>
 							<div
 								class="card scrollAnimation"
 								style="transition-delay: 100ms !important"
 							>
 								<img
-									src="./assets/entidades/nbcgib.png"
-									alt="Logo da TecnoJr"
-								/>
-								<h2>NBCGIB</h2>
-								<p>
-									Núcleo de Biologia Computacional e Gestão de
-									Informações Biotecnológicas
-								</p>
-								<a
-									target="_blank"
-									href="http://labbi.uesc.br/nbcgib/"
-								>
-									<span>Saiba mais</span>
-									<iconify-icon
-										icon="dashicons:arrow-right-alt2"
-									></iconify-icon>
-								</a>
-							</div>
-							<div
-								class="card scrollAnimation"
-								style="transition-delay: 200ms !important"
-							>
-								<img
-									src="./assets/entidades/ppgmc.png"
-									alt="Logo da TecnoJr"
+									src="./assets/entidades/ccam.png"
+									alt="Logo do CCAM"
 								/>
-								<h2>PPGMC</h2>
+								<h2>CCAM</h2>
 								<p>
-									Programa de Pós-Graduação em Modelagem
-									Computacional
+									Centro de Computação Avançada e Multidisciplinar
 								</p>
 								<a
 									target="_blank"
-									href="http://nbcgib.uesc.br/ppgmc/"
+									href="http://ccam.uesc.br"
 								>
 									<span>Saiba mais</span>
 									<iconify-icon
@@ -387,22 +324,16 @@ <h2>PPGMC</h2>
 									></iconify-icon>
 								</a>
 							</div>
-							<div
-								class="card scrollAnimation"
-								style="transition-delay: 300ms !important"
-							>
+							<div class="card scrollAnimation">
 								<img
-									src="./assets/entidades/dcet.png"
+									src="./assets/entidades/tecno.png"
 									alt="Logo da TecnoJr"
 								/>
-								<h2>DCET</h2>
-								<p>
-									Departamento de Ciências Exatas e
-									Tecnológicas
-								</p>
+								<h2>TecnoJr</h2>
+								<p>Associação Empresa Júnior de Computação</p>
 								<a
 									target="_blank"
-									href="http://www.uesc.br/dcet/"
+									href="https://tecnojr.com.br"
 								>
 									<span>Saiba mais</span>
 									<iconify-icon
@@ -412,20 +343,20 @@ <h2>DCET</h2>
 							</div>
 							<div
 								class="card scrollAnimation"
-								style="transition-delay: 400ms !important"
+								style="transition-delay: 200ms !important"
 							>
 								<img
-									src="./assets/entidades/cepedi.png"
-									alt="Logo da TecnoJr"
+									src="./assets/entidades/ppgmc.png"
+									alt="Logo do PPGMC"
 								/>
-								<h2>CEPEDI</h2>
+								<h2>PPGMC</h2>
 								<p>
-									Centro de Pesquisa, Desenvolvimento e
-									Inovação
+									Programa de Pós-Graduação em Modelagem
+									Computacional
 								</p>
 								<a
 									target="_blank"
-									href="http://www.cepedi.org.br/"
+									href="http://nbcgib.uesc.br/ppgmc/"
 								>
 									<span>Saiba mais</span>
 									<iconify-icon
@@ -439,7 +370,7 @@ <h2>CEPEDI</h2>
 							>
 								<img
 									src="./assets/entidades/cacic.png"
-									alt="Logo da TecnoJr"
+									alt="Logo do CACIC"
 								/>
 								<h2>CACIC</h2>
 								<p>Centro Acadêmico de Ciência da Computação</p>
@@ -459,7 +390,7 @@ <h2>CACIC</h2>
 							>
 								<img
 									src="./assets/entidades/nit.png"
-									alt="Logo da TecnoJr"
+									alt="Logo do NIT"
 								/>
 								<h2>NIT</h2>
 								<p>Núcleo de Inovação e Tecnologia</p>
@@ -479,7 +410,7 @@ <h2>NIT</h2>
 							>
 								<img
 									src="./assets/entidades/sbc.png"
-									alt="Logo da TecnoJr"
+									alt="Logo da SBC"
 								/>
 								<h2>SBC</h2>
 								<p>Sociedade Brasileira de Computação</p>
@@ -493,29 +424,6 @@ <h2>SBC</h2>
 									></iconify-icon>
 								</a>
 							</div>
-							<div
-								class="card scrollAnimation"
-								style="transition-delay: 800ms !important"
-							>
-								<img
-									src="./assets/entidades/erbase.png"
-									alt="Logo da TecnoJr"
-								/>
-								<h2>ERBASE</h2>
-								<p>
-									Escola Regional de Computação Bahia, Alagoas
-									e Sergipe
-								</p>
-								<a
-									target="_blank"
-									href="http://www.sbc.org.br/erbase2019"
-								>
-									<span>Saiba mais</span>
-									<iconify-icon
-										icon="dashicons:arrow-right-alt2"
-									></iconify-icon>
-								</a>
-							</div>
 						</div>
 					</div>
 				</div>
@@ -523,84 +431,75 @@ <h2>ERBASE</h2>
 			<section>
 				<div class="MaxWidthWrapper">
 					<div class="academicos">
-						<h1>Acadêmicos</h1>
-						<p>
-							Clique no item desejado para ter acesso ao arquivo
-							ou ao site!
-						</p>
+						<h1>Horários</h1>
 						<div class="wrapperSlideShow">
-							<!-- <div class="controls">
-								<div class="prev">
-									<iconify-icon
-										icon="dashicons:arrow-left-alt2"
-									></iconify-icon>
-								</div>
-								<div class="next">
-									<iconify-icon
-										icon="dashicons:arrow-right-alt2"
-									></iconify-icon>
-								</div>
-							</div> -->
-							<div class="slideShow">
+							<div id="horarios" class="slideShow">
 								<a
 									class="slide"
 									target="_blank"
-									href="../files/horarios/COLCIC_Horarios_2023.1_VERSAO_0.2.pdf"
+									href="https://docs.google.com/spreadsheets/d/e/2PACX-1vS_d6uDCMhy7Dwnk6cajSxAo_vLqFwEooD-rVj88ZKpDVZ_P25vUCu0-vviI4BMSw/pubhtml"
 								>
 									<span class="icon">
 										<iconify-icon
 											icon="ant-design:calendar-filled"
 										></iconify-icon>
 									</span>
-									<p>Horário 2023.1<br><span class="">atualizado em 03/11/2022</span></p>
+									<p><b>Horário 2025.2</b>
+										<br>
+										<span class="comment">atualizado em 22/05/2025</span>
+									</p>
 								</a>
 								<a
 									class="slide"
 									target="_blank"
-									href="../files/horarios/COLCIC_Horarios_2022.2_Versao_1_final_prof_fisica.pdf"
+									href="https://docs.google.com/spreadsheets/u/1/d/e/2PACX-1vR9dwrJFP59H3OUOeDAXQuw62sVIaZpJakzMX0swI9m2cNWLnnsGAEpLef0efj7tv8Dn79soKyr00bP/pubhtml"
 								>
 									<span class="icon">
 										<iconify-icon
 											icon="ant-design:calendar-filled"
 										></iconify-icon>
 									</span>
-									<p>Horário de 2022.2<br><span class="">Final</span></p>
+									<p>Horário 2025.1
+										<br>
+										<span class="comment">atualizado em 13/03/2025</span>
+									</p>
 								</a>
 								<a
 									class="slide"
 									target="_blank"
-									href="../files/horarios/COLCIC_Horarios_2022_1_V1.10_20220312.pdf"
+									href="https://docs.google.com/spreadsheets/u/1/d/e/2PACX-1vSIbdhmxa9zbhcSG6rt21BGeT766s2cYh4ZerjSpfKWNMeJrZb31KpQMRn33aaYzZ2d0YnSR-ETKpym/pubhtml"
 								>
 									<span class="icon">
 										<iconify-icon
 											icon="ant-design:calendar-filled"
 										></iconify-icon>
 									</span>
-									<p>Horário de 2022.1<br><span class="">Final</span></p>
+									<p><i>Horário 2024.2</i>
+									</p>
 								</a>
 								<a
 									class="slide"
 									target="_blank"
-									href="http://www.prograd.uesc.br/PortalSagres/Acesso.aspx"
+									href="https://docs.google.com/spreadsheets/d/e/2PACX-1vQx05YZWSMf9Vx6-sLc4C8ZvbCU8l2qfn67_0CSaJf4VGbmxa1Qs_Jc8wUJGYlyDaCPcuTqXHNtZMWR/pubhtml"
 								>
 									<span class="icon">
 										<iconify-icon
-											icon="cib:stripe-s"
+											icon="ant-design:calendar-filled"
 										></iconify-icon>
 									</span>
-									<p>SAGRES<br><span class="">&nbsp;</span></p>
+									<p><i>Horário 2024.1</i></p>
 								</a>
 								<a
 									class="slide"
 									target="_blank"
-									href="http://www.uesc.br/biblioteca/"
+									href="https://docs.google.com/spreadsheets/d/e/2PACX-1vSLUIVH7DMLmD4vzATNGcSZJ_xXJo3Y6sUF_lFs-PlSYceFziosIYh30axEiTSNOlFCjC5IC-FYjQDO/pubhtml"
 								>
 									<span class="icon">
 										<iconify-icon
-											icon="ph:books-fill"
+											icon="ant-design:calendar-filled"
 										></iconify-icon>
 									</span>
-									<p>Biblioteca<br><span class="">&nbsp;</span></p>
+									<p><i>Horário 2023.2</i></p>
 								</a>
 							</div>
 						</div>
@@ -726,5 +625,14 @@ <h1>Endereço</h1>
 		<script src="./js/header.js"></script>
 		<script src="./js/goToTop.js"></script>
 		<script src="./js/scrollAnimation.js"></script>
+<!-- script de neve para o Natal
+	<script src='https://code.jquery.com/jquery-2.1.0.js'></script>
+		<script src='https://loktar00.github.io/JQuery-Snowfall/snowfall.jquery.min.js'></script>
+			<script>
+			$( document ).ready(function() {
+				$(document).snowfall({shadow : true, round : true,  minSize: 5, maxSize:8});
+			}); 
+			</script>
+-->
 	</body>
 </html>
diff --git a/js/calendario.js b/js/calendario.js
deleted file mode 100644
index 811e98d..0000000
--- a/js/calendario.js
+++ /dev/null
@@ -1,30 +0,0 @@
-const calendar = [
-	{
-		mes: "Janeiro",
-		diaDoMes: "28",
-		diaDaSemana: "Quinta-feira",
-	},
-	{ mes: "Fevereiro", diaDoMes: 25, diaDaSemana: "Quinta-feira" },
-	{ mes: "Março", diaDoMes: 29, diaDaSemana: "Segunda-feira" },
-	{ mes: "Abril", diaDoMes: 27, diaDaSemana: "Terça-feira" },
-	{ mes: "Maio", diaDoMes: 19, diaDaSemana: "Quarta-feira" },
-	{ mes: "Junho", diaDoMes: 30, diaDaSemana: "Quarta-feira" },
-	{ mes: "Julho", diaDoMes: 23, diaDaSemana: "Sexta-feira" },
-	{ mes: "Agosto", diaDoMes: 31, diaDaSemana: "Terça-feira" },
-	{ mes: "Setembro", diaDoMes: 20, diaDaSemana: "Segunda-feira" },
-	{ mes: "Outubro", diaDoMes: 22, diaDaSemana: "Sexta-feira" },
-	{ mes: "Novembro", diaDoMes: 18, diaDaSemana: "Quinta-feira" },
-	{ mes: "Dezembro", diaDoMes: 15, diaDaSemana: "Quarta-feira" },
-]
-
-const tblCalendario = document.querySelector("#tableCalendario .content")
-
-calendar.forEach((dia) => {
-	const row = document.createElement("div")
-	row.classList.add("row")
-	row.innerHTML += `<span>${dia.mes}</span>`
-	row.innerHTML += `<span>${dia.diaDoMes}</span>`
-	row.innerHTML += `<span>${dia.diaDaSemana}</span>`
-
-	tblCalendario.appendChild(row)
-})
diff --git a/js/colegiado.js b/js/colegiado.js
index 54b2e42..0b560b9 100644
--- a/js/colegiado.js
+++ b/js/colegiado.js
@@ -152,11 +152,10 @@ const composicao = [
 ]
 
 const coordenacao = [
-	{ name: "Hélder Conceição Almeida", role: "Coordenador" },
-	{ name: "Trícia Souto Santos", role: "Vice-Coordenadora" },
+	{ name: "Marta Magda Dornelles", role: "Coordenadora" },
+	{ name: "Jorge Lima de Oliveira Filho", role: "Vice-Coordenador" },
 	{ name: "Rita de Cássia Souza Dias da Silva", role: "Secretária" },
 	{ name: "Ramon Santos Costa", role: "Técnico de Informática" },
-	{ name: "Flávio Victor Souza de Melo", role: "Técnico de Informática" },
 ]
 
 const tblColegiado = document.querySelector("#tableColegiado .content")
diff --git a/licencas/index.html b/licencas/index.html
index bcb3441..2513044 100644
--- a/licencas/index.html
+++ b/licencas/index.html
@@ -164,33 +164,7 @@
 									</a>
 								</ul>
 							</li>
-							<li class="dropdown">
-								<span class="title">
-									<span> Colegiado </span>
-									<iconify-icon
-										icon="dashicons:arrow-down-alt2"
-									></iconify-icon>
-								</span>
-								<ul>
-									<a href="../colegiado">
-										Composição do colegiado
-									</a>
-									<a href="../calendario">
-										Calendário de Reuniões
-									</a>
-									<a
-										target="_blank"
-										href="http://nbcgib.uesc.br/dcetweb/"
-									>
-										<span>
-											Área para membros do COLCIC
-										</span>
-										<iconify-icon
-											icon="akar-icons:link-chain"
-										></iconify-icon>
-									</a>
-								</ul>
-							</li>
+
 							<li active class="dropdown">
 								<span class="title">
 									<span> Diversos </span>
@@ -214,16 +188,10 @@
 									</a>
 								</ul>
 							</li>
-							<a
-								target="_blank"
-								href="http://www.uesc.br/dcet/index.php?item=conteudo_informatica.php"
-							>
-								<span>Docentes</span>
-								<iconify-icon
-									icon="akar-icons:link-chain"
-								></iconify-icon>
-							</a>
+
+							<a href="../colegiado"> Colegiado</a>
 							<a href="../contato">Contato</a>
+							<a href="../reserva">Reservas</a>
 						</ul>
 					</div>
 					<button class="iconMenu" onclick="toggleNavList()">
diff --git a/matricula/index.html b/matricula/index.html
index 41acff6..64acbd4 100644
--- a/matricula/index.html
+++ b/matricula/index.html
@@ -170,33 +170,7 @@
 									</a>
 								</ul>
 							</li>
-							<li class="dropdown">
-								<span class="title">
-									<span> Colegiado </span>
-									<iconify-icon
-										icon="dashicons:arrow-down-alt2"
-									></iconify-icon>
-								</span>
-								<ul>
-									<a href="../colegiado">
-										Composição do colegiado
-									</a>
-									<a href="../calendario">
-										Calendário de Reuniões
-									</a>
-									<a
-										target="_blank"
-										href="http://nbcgib.uesc.br/dcetweb/"
-									>
-										<span>
-											Área para membros do COLCIC
-										</span>
-										<iconify-icon
-											icon="akar-icons:link-chain"
-										></iconify-icon>
-									</a>
-								</ul>
-							</li>
+
 							<li class="dropdown">
 								<span class="title">
 									<span> Diversos </span>
@@ -220,16 +194,10 @@
 									</a>
 								</ul>
 							</li>
-							<a
-								target="_blank"
-								href="http://www.uesc.br/dcet/index.php?item=conteudo_informatica.php"
-							>
-								<span>Docentes</span>
-								<iconify-icon
-									icon="akar-icons:link-chain"
-								></iconify-icon>
-							</a>
+
+							<a href="../colegiado"> Colegiado</a>
 							<a href="../contato">Contato</a>
+							<a href="../reserva">Reservas</a>
 						</ul>
 					</div>
 					<button class="iconMenu" onclick="toggleNavList()">
diff --git a/reserva/index.html b/reserva/index.html
new file mode 100644
index 0000000..b7f4da4
--- /dev/null
+++ b/reserva/index.html
@@ -0,0 +1,627 @@
+<!DOCTYPE html>
+<html lang="pt-br">
+	<head>
+		<meta charset="UTF-8" />
+		<meta http-equiv="X-UA-Compatible" content="IE=edge" />
+		<meta name="viewport" content="width=device-width, initial-scale=1.0" />
+		<title>Reserva | COLCIC</title>
+
+		<link rel="shortcut icon" href="../assets/favicon.png" type="image/x-icon" />
+        <link href="https://fonts.googleapis.com/css2?family=Montserrat:wght@400;600;700&display=swap" rel="stylesheet">
+
+		<link rel="stylesheet" type="text/css" href="../css/default.css" />
+        <link rel="stylesheet" type="text/css" href="../css/reset.css" />
+        <link rel="stylesheet" type="text/css" href="../css/header.css" />
+        <link rel="stylesheet" type="text/css" href="../css/buttons.css" />
+        <link rel="stylesheet" type="text/css" href="../css/pages/reserva.css" />
+        <link rel="stylesheet" type="text/css" href="../css/footer.css" />
+        <link rel="stylesheet" type="text/css" href="../css/tooltip.css" />
+        <link rel="stylesheet" type="text/css" href="../css/goToTop.css" />
+
+        <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.5.2/css/all.min.css">
+
+		<title>COLCIC | Colegiado de Ciência da Computação</title>
+		<meta
+			name="title"
+			content="COLCIC | Colegiado de Ciência da Computação"
+		/>
+		<meta
+			name="description"
+			content="O Curso de Bacharelado em Ciência da Computação da Universidade Estadual de Santa Cruz provê uma formação que capacita o profissional para a solução de problemas do mundo real, por meio da construção de modelos computacionais e de sua implementação."
+		/>
+
+		<meta property="og:type" content="website" />
+		<meta property="og:url" content="https://igorroc.github.io/colcic" />
+		<meta
+			property="og:title"
+			content="COLCIC | Colegiado de Ciência da Computação"
+		/>
+		<meta
+			property="og:description"
+			content="O Curso de Bacharelado em Ciência da Computação da Universidade Estadual de Santa Cruz provê uma formação que capacita o profissional para a solução de problemas do mundo real, por meio da construção de modelos computacionais e de sua implementação."
+		/>
+		<meta
+			property="og:image"
+			content="https://raw.githubusercontent.com/igorroc/colcic/main/assets/banner.png"
+		/>
+
+		<meta property="twitter:card" content="summary_large_image" />
+		<meta
+			property="twitter:url"
+			content="https://igorroc.github.io/colcic"
+		/>
+		<meta
+			property="twitter:title"
+			content="COLCIC | Colegiado de Ciência da Computação"
+		/>
+		<meta
+			property="twitter:description"
+			content="O Curso de Bacharelado em Ciência da Computação da Universidade Estadual de Santa Cruz provê uma formação que capacita o profissional para a solução de problemas do mundo real, por meio da construção de modelos computacionais e de sua implementação."
+		/>
+		<meta
+			property="twitter:image"
+			content="https://raw.githubusercontent.com/igorroc/colcic/main/assets/banner.png"
+		/>
+
+		<script src="https://code.iconify.design/iconify-icon/1.0.1/iconify-icon.min.js"></script>
+
+    </head>
+
+<body>
+    <header>
+        <div class="wrapper">
+            <div class="wrapperContent">
+                <a class="logo" href="../">
+                    <img src="../assets/logo.png" alt="Logo COLCIC" />
+                </a>
+                <div class="navList">
+                    <ul>
+                        <a href="../">Início</a>
+                        <li class="dropdown">
+                            <span class="title">
+                                <span> Sobre o curso </span>
+                                <iconify-icon
+                                    icon="dashicons:arrow-down-alt2"
+                                ></iconify-icon>
+                            </span>
+                            <ul>
+                                <a href="../sobre"
+                                    >Ciência da Computação na UESC</a
+                                >
+                                <a href="../disciplinas"
+                                    >Programa das Disciplinas</a
+                                >
+                                <a
+                                    target="_blank"
+                                    href="../files/comp_curriculares/matriz_cic_2012.pdf"
+                                >
+                                    <span> Fluxograma do Curso </span>
+                                    <iconify-icon
+                                        icon="akar-icons:download"
+                                    ></iconify-icon>
+                                </a>
+                            </ul>
+                        </li>
+                        <li class="dropdown">
+                            <span class="title">
+                                <span> Apoio ao estudante </span>
+                                <iconify-icon
+                                    icon="dashicons:arrow-down-alt2"
+                                ></iconify-icon>
+                            </span>
+                            <ul>
+                                <a
+                                    target="_blank"
+                                    href="http://www.prograd.uesc.br/PortalSagres/Acesso.aspx"
+                                >
+                                    <span> Portal Acadêmico </span>
+                                    <iconify-icon
+                                        icon="akar-icons:link-chain"
+                                    ></iconify-icon>
+                                </a>
+                                <a
+                                    target="_blank"
+                                    href="https://igorroc.github.io/finalcountdown/"
+                                >
+                                    <span>
+                                        Calculadora de Prova Final
+                                    </span>
+                                    <iconify-icon
+                                        icon="akar-icons:link-chain"
+                                    ></iconify-icon>
+                                </a>
+                                <a
+                                    target="_blank"
+                                    href="https://uesc.ilrocha.com/emails/"
+                                >
+                                    <span> Email dos professores </span>
+                                    <iconify-icon
+                                        icon="akar-icons:link-chain"
+                                    ></iconify-icon>
+                                </a>
+                                <a href="../aproveitamentos">
+                                    Aproveitamento de Estudos
+                                </a>
+                                <a href="../matricula" class="displayNone">
+                                    Matrícula para Veteranos
+                                </a>
+                                <a href="../complementares">
+                                    Atividades complementares (Barema)
+                                </a>
+                                <a
+                                    target="_blank"
+                                    href="../files/comp_curriculares/regulamentoestagio.pdf"
+                                >
+                                    <span> Regulamento do Estágio </span>
+                                    <iconify-icon
+                                        icon="akar-icons:download"
+                                    ></iconify-icon>
+                                </a>
+                            </ul>
+                        </li> 
+                                            
+                        <li class="dropdown">
+                            <span class="title">
+                                <span> Diversos </span>
+                                <iconify-icon
+                                    icon="dashicons:arrow-down-alt2"
+                                ></iconify-icon>
+                            </span>
+                            <ul>
+                                <a
+                                    target="_blank"
+                                    href="http://sinform.tecnojr.com.br/"
+                                >
+                                    <span> SINFORM </span>
+                                    <iconify-icon
+                                        icon="akar-icons:link-chain"
+                                    ></iconify-icon>
+                                </a>
+
+                                <a href="../licencas">
+                                    Licenças acadêmicas de Software
+                                </a>
+                            </ul>
+                        </li>
+
+                        <a href="../colegiado"> Colegiado</a>  
+                        <a href="../contato">Contato</a>
+                        <a active href="../reserva">Reservas</a>
+                    </ul>
+                </div>
+                <button class="iconMenu" onclick="toggleNavList()">
+                    <div>
+                        <span></span>
+                        <span></span>
+                        <span></span>
+                    </div>
+                </button>
+            </div>
+        </div>
+        <div id="top"></div>
+    </header>
+
+    <main>
+        <section variant>
+            <div class="MaxWidthWrapper">
+                <div class="mainWrapper">
+                    
+                    <div class="contact">
+                        <h2>Quem Pode Solicitar Reserva de Laboratório?</h2>
+                        <div class="contactWrapper">
+                            
+                            <div class="contactItem">
+                                <div class="contactIcon">
+                                    <iconify-icon icon="bi:check-circle-fill"></iconify-icon>
+                                </div>
+                                <div class="contactInfo">
+                                    <div class="title">Órgãos de Administração Setorial</div>
+                                    <div class="content">
+                                        <p>Departamentos e Colegiados de Curso.</p>
+                                    </div>
+                                </div>
+                            </div>
+
+                            <div class="contactItem">
+                                <div class="contactIcon">
+                                    <iconify-icon icon="bi:check-circle-fill"></iconify-icon>
+                                </div>
+                                <div class="contactInfo">
+                                    <div class="title">Órgãos de Administração Superior</div>
+                                    <div class="content">
+                                        <p>CONSAD, CONSEP, CONSU e Reitoria.</p>
+                                    </div>
+                                </div>
+                            </div>
+
+                            <div class="contactItem">
+                                <div class="contactIcon">
+                                    <iconify-icon icon="bi:check-circle-fill"></iconify-icon>
+                                </div>
+                                <div class="contactInfo">
+                                    <div class="title">Órgãos de Apoio Administrativo</div>
+                                    <div class="content">
+                                        <p>Secretaria de Registro de Diplomas, ASCOM, EDITUS, PROJUS e UDO.</p>
+                                    </div>
+                                </div>
+                            </div>
+
+                            <div class="contactItem">
+                                <div class="contactIcon">
+                                    <iconify-icon icon="bi:check-circle-fill"></iconify-icon>
+                                </div>
+                                <div class="contactInfo">
+                                    <div class="title">Órgãos Suplementares</div>
+                                    <div class="content">
+                                        <p>Biblioteca Central, Prefeitura do Campus, Gráfica Universitária, Hospital Veterinário, CEDOC, SECREGE e Rádio e TV Universitária.</p>
+                                    </div>
+                                </div>
+                            </div>
+                        </div>
+                    </div>
+
+                    <div class="mainContentPhoto">
+                        <img src="../assets/sobre2.png" alt="" />
+                    </div>
+                
+                </div>
+            </div>
+        </section>
+	
+        <section>
+            <div class="MaxWidthWrapper">
+                <div class="mainWrapper">
+                    <div class="mainContent">
+						
+                        <h1>Solicitação de Reserva de Laboratório</h1>
+
+                        <form id="reservaForm" novalidate>
+
+                            <div class="form-group emailField">
+                                <label>Email do Solicitante *</label>
+                                <input type="email" name="email" required />
+                            </div>
+                     
+                            <div id="disciplinasContainer">
+
+                                <!-- Bloco de reserva (um conjunto de campos) -->
+                                <div class="reserva-block">
+                                    <div class="reserva-header">
+                                        <h3>Reserva 1</h3>
+                                        <button type="button" class="removeBtn" style="display:none;">
+                                            <i class="fa-solid fa-trash-can"></i>
+                                            <span>Remover</span>
+                                        </button>
+                                    </div>
+
+                                    <!-- Seção 1: Responsável -->
+                                    <fieldset class="reserva-section">
+                                        <legend>Informações do responsável</legend>
+                                        <div class="form-row">
+                                            <div class="form-group">
+                                                <label>Nome do docente responsável *</label>
+                                                <input type="text" name="nome" required />
+                                            </div>
+                                            <div class="form-group matriculaDiv">
+                                                <label>Matrícula UESC *</label>
+                                                <input type="text" name="matricula" required />
+                                            </div>
+                                        </div>
+
+                                        <div class="form-row">
+                                            <div class="form-group">
+                                                <label>Cargo / Função *</label>
+                                                <input type="text" name="cargo" required />
+                                            </div>
+                                            <div class="form-group">
+                                                <label>Setor / Lotação *</label>
+                                                <input type="text" name="setor" required />
+                                            </div>
+                                        </div>
+                                    </fieldset>
+
+                                    <!-- Seção 2: Informações da reserva -->
+                                    <fieldset class="reserva-section">
+                                        <legend>Informações da reserva</legend>
+                                        <div class="form-row">
+                                            <div class="form-group">
+                                                <label>Data de início *</label>
+                                                <input type="date" name="dataInicio" required />
+                                            </div>
+                                            <div class="form-group">
+                                                <label>Data de término *</label>
+                                                <input type="date" name="dataFim" required />
+                                            </div>
+                                        </div>
+
+                                        <div class="form-row">
+                                            <div class="form-group">
+                                                <label>Horário início *</label>
+                                                <input type="time" name="inicio" required />
+                                            </div>
+                                            <div class="form-group">
+                                                <label>Horário término *</label>
+                                                <input type="time" name="fim" required />
+                                            </div>
+                                        </div>
+
+                                        <div class="form-row">
+                                            <div class="form-group">
+                                                <label>Número de alunos *</label>
+                                                <input type="number" name="numAlunos" min="1" required />
+                                            </div>
+                                            <div class="form-group">
+                                                <label>Disciplina / Conteúdo *</label>
+                                                <input type="text" name="disciplina" required />
+                                            </div>
+                                        </div>
+                                    </fieldset>
+
+                                    <!-- Seção 3: Recursos -->
+                                    <fieldset class="reserva-section">
+                                        <legend>Informações sobre utilização de recursos</legend>
+                                        <p style="font-size: 0.9rem; color: rgba(0, 0, 0, 0.452); margin-bottom: 0.8rem;">
+                                            Observação: Solicitação de softwares deve ser feita com antecedência mínima de 15 dias, para outros recursos, 5 dias.
+                                        </p>
+
+                                        <div class="form-group full-width">
+                                            <label>Softwares/Recursos que serão utilizados *</label>
+                                            <textarea name="softwares" rows="3" required></textarea>
+                                        </div>
+
+                                        <div class="form-group full-width">
+                                            <label>Procedimentos para Instalação / Links / Comandos / Outros</label>
+                                            <textarea name="observacoes" rows="3"></textarea>
+                                        </div>
+
+                                        <div class="form-group">
+                                            <label>Plataforma *</label>
+                                            <select name="plataforma" required style="width: 150px;">
+                                                <option value="">Selecione...</option>
+                                                <option value="Windows">Windows</option>
+                                                <option value="Linux">Linux</option>
+                                                <option value="Ambos">Ambos</option>
+                                            </select>
+                                        </div>
+                                    </fieldset>
+                                </div>
+                            </div>
+
+                            <button type="button" class="addBtn" style="font-weight:bold;">+ Adicionar nova solicitação</button>
+
+                            <p>Todos os campos com (*) são obrigatórios.</p>
+
+                            <div class="button-wrapper">
+                                <button type="submit" class="PrimaryButton">Solicitar reserva</button>
+                            </div>
+                        </form>
+
+                        <div id="msgFeedback" style="margin-top:1rem; color:green; font-weight:bold;"></div>
+                    </div>
+                </div>
+            </div>
+        </section>
+    </main>
+
+    <footer>
+        <div class="footerWave">
+            <div class="left"></div>
+            <a class="footerLogo" href="#top">
+                <div class="logo">
+                    <img
+                        src="../assets/footerLogo.png"
+                        alt="Logo do curso de Ciência da Computação"
+                    />
+                </div>
+            </a>
+            <div class="right"></div>
+        </div>
+        <div class="MaxWidthWrapper">
+            <div class="footerWrapper">
+                <div class="footerFloat">
+                    <div class="footerContent">
+                        <h1>Contato</h1>
+                        <ul>
+                            <a
+                                target="_blank"
+                                href="https://goo.gl/maps/FKcmwBJ76WYrLQSj8"
+                            >
+                                <iconify-icon icon="heroicons:map-pin-solid"></iconify-icon>
+                                <span>
+                                    UESC, Pavilhão do DCET, 1º andar
+                                </span>
+                            </a>
+                            <a target="_blank" href="mailto:colcic@uesc.br">
+                                <iconify-icon icon="bi:envelope-fill"></iconify-icon>
+                                <span> colcic@uesc.br </span>
+                            </a>
+                            <a target="_blank" href="tel:7336805110">
+                                <iconify-icon icon="ant-design:phone-filled"></iconify-icon>
+                                <span> (73) 3680-5110 </span>
+                            </a>
+                            <a
+                                target="_blank"
+                                href="https://www.facebook.com/groups/colcic/"
+                            >
+                                <iconify-icon icon="akar-icons:facebook-fill"></iconify-icon>
+                                <span> Facebook </span>
+                            </a>
+                        </ul>
+                    </div>
+                    <div class="footerContent">
+                        <h1>Endereço</h1>
+                        <a target="_blank" href="#" class="linkEndereco">
+                            <p>UNIVERSIDADE ESTADUAL DE SANTA CRUZ - UESC</p>
+                            <p>Campus Soane Nazaré de Andrade</p>
+                            <p>Rodovia Jorge Amado, Km 16, Salobrinho</p>
+                            <p>CEP 45662-900. Ilhéus-Bahia</p>
+                        </a>
+                    </div>
+                </div>
+
+                <div class="footerCopy">
+                    <p>© 2022 - Todos os direitos reservados | COLCIC</p>
+                    <p>
+                        Desenvolvido por
+                        <a
+                            target="_blank"
+                            href="https://ilrocha.com"
+                            id="copyIgor"
+                            >Igor Rocha</a
+                        >
+                    </p>
+                </div>
+            </div>
+        </div>
+    </footer>
+
+    <script>
+    document.addEventListener('DOMContentLoaded', () => {
+        const form = document.getElementById("reservaForm");
+        const msgFeedback = document.getElementById("msgFeedback");
+        const submitButton = form.querySelector('button[type="submit"]');
+        const container = document.getElementById("disciplinasContainer");
+        const addBtn = document.querySelector(".addBtn");
+
+        // --- FUNÇÕES PARA MÚLTIPLAS RESERVAS ---
+
+        const updateReservaBlocks = () => {
+            const blocks = container.querySelectorAll('.reserva-block');
+            blocks.forEach((block, index) => {
+                const header = block.querySelector('h3');
+                if (header) {
+                    header.innerText = `Reserva ${index + 1}`;
+                }
+                const removeBtn = block.querySelector('.removeBtn');
+                if (removeBtn) {
+                    removeBtn.style.display = blocks.length > 1 ? 'flex' : 'none';
+                }
+            });
+        };
+
+        // Evento para ADICIONAR uma nova reserva
+        addBtn.addEventListener("click", () => {
+            const firstBlock = container.querySelector('.reserva-block');
+            const newBlock = firstBlock.cloneNode(true);
+
+            // Limpa todos os campos de input, select e textarea apenas do bloco que foi clonado.
+            const fieldsToClear = newBlock.querySelectorAll('input, select, textarea');
+            fieldsToClear.forEach(field => {
+                field.value = '';
+            });
+            
+            container.appendChild(newBlock);
+            updateReservaBlocks();
+        });
+
+        // Evento para REMOVER uma reserva
+        container.addEventListener('click', (e) => {
+            if (e.target.closest('.removeBtn')) {
+                const blockToRemove = e.target.closest('.reserva-block');
+                blockToRemove.remove();
+                updateReservaBlocks();
+            }
+        });
+
+        // --- FUNÇÃO PARA FORMATAR A DATA ---
+        function formatarData(data) {
+            if (!data) return '';
+            const [ano, mes, dia] = data.split('-');
+            return `${dia}/${mes}/${ano}`;
+        }
+
+        // --- EVENTO DE SUBMISSÃO DO FORMULÁRIO ---
+        form.addEventListener("submit", async (e) => {
+            e.preventDefault();
+            
+            submitButton.disabled = true;
+            submitButton.innerText = "Enviando...";
+
+            const email = form.querySelector("input[name='email']").value.trim();
+            const reservas = [];
+
+            document.querySelectorAll(".reserva-block").forEach((block, index) => {
+                reservas.push({
+                    numero: index + 1,
+                    nome: block.querySelector("input[name='nome']").value.trim(),
+                    matricula: block.querySelector("input[name='matricula']").value.trim(),
+                    cargo: block.querySelector("input[name='cargo']").value.trim(),
+                    setor: block.querySelector("input[name='setor']").value.trim(),
+                    dataInicio: block.querySelector("input[name='dataInicio']").value,
+                    dataFim: block.querySelector("input[name='dataFim']").value,
+                    inicio: block.querySelector("input[name='inicio']").value,
+                    fim: block.querySelector("input[name='fim']").value,
+                    numAlunos: block.querySelector("input[name='numAlunos']").value,
+                    disciplina: block.querySelector("input[name='disciplina']").value.trim(),
+                    softwares: block.querySelector("textarea[name='softwares']").value.trim(),
+                    observacoes: block.querySelector("textarea[name='observacoes']").value.trim(),
+                    plataforma: block.querySelector("select[name='plataforma']").value
+                });
+            });
+
+            let corpoEmail = `Solicitação de Reserva de Laboratório\n\nSolicitante: ${email}\n\n`;
+            reservas.forEach(r => {
+                const dataInicioFormatada = formatarData(r.dataInicio);
+                const dataFimFormatada = formatarData(r.dataFim);
+
+                corpoEmail += `
+    ===========================
+    Reserva ${r.numero}
+    ===========================
+    Nome: ${r.nome}
+    Matrícula: ${r.matricula}
+    Cargo: ${r.cargo}
+    Setor: ${r.setor}
+
+    Data: ${dataInicioFormatada} até ${dataFimFormatada}
+    Horário: ${r.inicio} - ${r.fim}
+    Nº Alunos: ${r.numAlunos}
+    Disciplina: ${r.disciplina}
+
+    Softwares/Recursos: ${r.softwares}
+    Observações: ${r.observacoes || 'Nenhuma'}
+    Plataforma: ${r.plataforma}
+    \n\n`;
+            });
+
+            try {
+                const res = await fetch("http://172.17.1.215:3001/enviar-reserva", {
+                    method: "POST",
+                    headers: { "Content-Type": "application/json" },
+                    body: JSON.stringify({ emailProfessor: email, corpoEmail })
+                });
+                
+                if (res.ok) {
+                    const data = await res.json();
+                    msgFeedback.style.color = "green";
+                    msgFeedback.innerText = data.message;
+                    
+                    const allBlocks = document.querySelectorAll('.reserva-block');
+                    allBlocks.forEach((block, index) => {
+                        if (index > 0) block.remove();
+                    });
+                    form.reset();
+                    updateReservaBlocks();
+
+                } else {
+                    const errorData = await res.json();
+                    msgFeedback.style.color = "red";
+                    msgFeedback.innerText = errorData.message || "Erro ao enviar a solicitação.";
+                }
+
+            } catch (err) {
+                msgFeedback.style.color = "red";
+                msgFeedback.innerText = "Erro de conexão. Verifique se o servidor está rodando.";
+            } finally {
+                submitButton.disabled = false;
+                submitButton.innerText = "Solicitar reserva";
+            }
+        });
+
+        updateReservaBlocks();
+    });
+    </script>
+
+    <script src="../js/header.js"></script>
+</body>
+</html>
diff --git a/sobre/index.html b/sobre/index.html
index db3d81b..94f457b 100644
--- a/sobre/index.html
+++ b/sobre/index.html
@@ -165,33 +165,7 @@
 									</a>
 								</ul>
 							</li>
-							<li class="dropdown">
-								<span class="title">
-									<span> Colegiado </span>
-									<iconify-icon
-										icon="dashicons:arrow-down-alt2"
-									></iconify-icon>
-								</span>
-								<ul>
-									<a href="../colegiado">
-										Composição do colegiado
-									</a>
-									<a href="../calendario">
-										Calendário de Reuniões
-									</a>
-									<a
-										target="_blank"
-										href="http://nbcgib.uesc.br/dcetweb/"
-									>
-										<span>
-											Área para membros do COLCIC
-										</span>
-										<iconify-icon
-											icon="akar-icons:link-chain"
-										></iconify-icon>
-									</a>
-								</ul>
-							</li>
+							
 							<li class="dropdown">
 								<span class="title">
 									<span> Diversos </span>
@@ -215,16 +189,10 @@
 									</a>
 								</ul>
 							</li>
-							<a
-								target="_blank"
-								href="http://www.uesc.br/dcet/index.php?item=conteudo_informatica.php"
-							>
-								<span>Docentes</span>
-								<iconify-icon
-									icon="akar-icons:link-chain"
-								></iconify-icon>
-							</a>
+
+							<a href="../colegiado"> Colegiado</a>
 							<a href="../contato">Contato</a>
+							<a href="../reserva">Reservas</a>
 						</ul>
 					</div>
 					<button class="iconMenu" onclick="toggleNavList()">