Add public contribution templates

.github/ISSUE_TEMPLATE/bug.yml

@@ -0,0 +1,62 @@
+name: Bug report
+description: Report something that is not working as expected.
+title: "[Bug]: "
+labels:
+  - bug
+body:
+  - type: textarea
+    id: reproduction
+    attributes:
+      label: Reproduction steps
+      description: List the exact commands or steps that reproduce the problem.
+      placeholder: |
+        1. Run ...
+        2. Observe ...
+    validations:
+      required: true
+  - type: textarea
+    id: expected
+    attributes:
+      label: Expected behavior
+      description: What should have happened?
+    validations:
+      required: true
+  - type: textarea
+    id: actual
+    attributes:
+      label: Actual behavior
+      description: What happened instead?
+    validations:
+      required: true
+  - type: input
+    id: version
+    attributes:
+      label: mpi --version
+      placeholder: mpi 0.1.0
+    validations:
+      required: true
+  - type: textarea
+    id: doctor
+    attributes:
+      label: mpi doctor output
+      render: text
+      placeholder: Paste the full `mpi doctor` output.
+    validations:
+      required: true
+  - type: input
+    id: os
+    attributes:
+      label: OS and Python
+      placeholder: macOS 15.5, Python 3.12.9
+    validations:
+      required: true
+  - type: dropdown
+    id: mode
+    attributes:
+      label: Runtime mode
+      options:
+        - Fixture mode only
+        - Live adapter mode
+        - Not sure
+    validations:
+      required: true

.github/ISSUE_TEMPLATE/config.yml

@@ -0,0 +1,5 @@
+blank_issues_enabled: false
+contact_links:
+  - name: Security vulnerability
+    url: https://github.com/OMT-Global/mailplus-intelligence/security/policy
+    about: Please follow SECURITY.md for private vulnerability reports.

.github/ISSUE_TEMPLATE/feature.yml

@@ -0,0 +1,36 @@
+name: Feature request
+description: Propose a scoped improvement.
+title: "[Feature]: "
+labels:
+  - feature
+body:
+  - type: textarea
+    id: motivation
+    attributes:
+      label: Motivation
+      description: What operator problem would this solve?
+    validations:
+      required: true
+  - type: textarea
+    id: alternatives
+    attributes:
+      label: Alternatives considered
+      description: What existing workflow or smaller change did you consider?
+    validations:
+      required: true
+  - type: dropdown
+    id: scope
+    attributes:
+      label: Scope
+      options:
+        - v0.1
+        - Phase 2
+        - Out of scope
+        - Not sure
+    validations:
+      required: true
+  - type: textarea
+    id: notes
+    attributes:
+      label: Additional context
+      description: Add links, examples, or constraints.

.github/PULL_REQUEST_TEMPLATE.md

@@ -0,0 +1,22 @@
+## Summary
+
+- 
+
+## Scope
+
+- R milestone:
+- Linked issue:
+
+## Test Plan
+
+- [ ] `bash scripts/ci/run-fast-checks.sh`
+
+## Documentation
+
+- [ ] README/docs updated or not needed
+- [ ] Public scope/stub status still accurate
+
+## Fixtures
+
+- [ ] Fixture changes are synthetic metadata only
+- [ ] No raw mail bodies, secrets, runtime auth, generated databases, or caches

CODEOWNERS

@@ -1,2 +1,2 @@
 # Managed CODEOWNERS for OMT-Global native repos.
-* @pheidon @jmcte
+* @jmcte

CONTRIBUTING.md

@@ -34,3 +34,10 @@ people, accounts, hosts, messages, or credentials.
 
 Review `docs/privacy-redaction-boundaries.md` before adding data fixtures,
 semantic outputs, logs, or documentation examples.
+
+## Good First Issues
+
+Good newcomer tasks are tracked with the
+[`good first issue` label](https://github.com/OMT-Global/mailplus-intelligence/issues?q=is%3Aissue+is%3Aopen+label%3A%22good+first+issue%22).
+Prefer fixture-mode changes, docs clarifications, or tests that do not require
+live MailPlus credentials.