Feature: Setup backend

.gitattributes

@@ -0,0 +1,3 @@
+/gradlew text eol=lf
+*.bat text eol=crlf
+*.jar binary

.github/workflows/ci.yml

@@ -1,65 +1,62 @@
-name: CI / Deploy
+name: CI
 
 on:
   push:
     branches: [main]
   pull_request:
     branches: [main]
 
-permissions:
-  contents: read
-  pages: write
-  id-token: write
-
-# Only one deployment at a time; don't cancel in-progress runs on main
 concurrency:
-  group: pages
-  cancel-in-progress: false
-
-env:
-  FORCE_JAVASCRIPT_ACTIONS_TO_NODE24: true
+  group: ci-${{ github.ref }}
+  cancel-in-progress: true
 
 jobs:
-  ci:
-    name: Lint, Typecheck & Build
+  build:
+    name: Build & Test
     runs-on: ubuntu-latest
 
     steps:
       - name: Checkout
         uses: actions/checkout@v4
 
+      - name: Setup GraalVM (Java 24)
+        uses: graalvm/setup-graalvm@v1
+        with:
+          java-version: '24'
+          distribution: 'graalvm-community'
+          cache: 'gradle'
+
       - name: Setup Bun
         uses: oven-sh/setup-bun@v2
+        with:
+          bun-version: '1.3.13'
 
-      - name: Install dependencies
+      - name: Install frontend dependencies
+        working-directory: frontend
         run: bun install --frozen-lockfile
 
-      - name: Lint
+      - name: Frontend — Lint
+        working-directory: frontend
         run: bun run lint
 
-      - name: Typecheck
+      - name: Frontend — Typecheck
+        working-directory: frontend
         run: bun run typecheck
 
-      - name: Build
-        run: bun run build
-
-      - name: Upload Pages artifact
-        if: github.ref == 'refs/heads/main'
-        uses: actions/upload-pages-artifact@v3
-        with:
-          path: dist
+      - name: Frontend — Test
+        working-directory: frontend
+        run: bun run test
 
-  deploy:
-    name: Deploy to GitHub Pages
-    needs: ci
-    if: github.ref == 'refs/heads/main'
-    runs-on: ubuntu-latest
+      - name: Backend — Test
+        run: ./gradlew :backend:test
 
-    environment:
-      name: github-pages
-      url: ${{ steps.deployment.outputs.page_url }}
+      - name: Build Single JAR (frontend embedded)
+        run: ./gradlew :backend:bootJar
 
-    steps:
-      - name: Deploy
-        id: deployment
-        uses: actions/deploy-pages@v4
+      - name: Upload JAR artifact
+        if: github.ref == 'refs/heads/main'
+        uses: actions/upload-artifact@v4
+        with:
+          name: mithril-forge-jar
+          path: backend/build/libs/*.jar
+          retention-days: 30

.gitignore

@@ -1,3 +1,42 @@
+HELP.md
+.gradle
+build/
+!gradle/wrapper/gradle-wrapper.jar
+!**/src/main/**/build/
+!**/src/test/**/build/
+
+### STS ###
+.apt_generated
+.classpath
+.factorypath
+.project
+.settings
+.springBeans
+.sts4-cache
+bin/
+!**/src/main/**/bin/
+!**/src/test/**/bin/
+
+### IntelliJ IDEA ###
+.idea
+*.iws
+*.iml
+*.ipr
+out/
+!**/src/main/**/out/
+!**/src/test/**/out/
+
+### NetBeans ###
+/nbproject/private/
+/nbbuild/
+/dist/
+/nbdist/
+/.nb-gradle/
+
+### Kotlin ###
+.kotlin
+
+
 # Logs
 logs
 *.log
@@ -11,11 +50,14 @@ node_modules
 dist
 dist-ssr
 *.local
+.vite
+
+# Frontend build output bundled into Spring Boot static resources
+backend/src/main/resources/static/
 
 # Editor directories and files
 .vscode/*
 !.vscode/extensions.json
-.idea
 .DS_Store
 *.suo
 *.ntvs*

.tool-versions

@@ -1 +1,3 @@
 bun 1.3.13
+kotlin 2.3.21
+java graalvm-community-24.0.1