Initial commit: AirCoding V1.0.0 Alpha architecture baseline

Complete architecture document set with multi-model review remediation:
- Frozen interface contracts, runtime semantics, DB schemas
- Event/tool/error/provider registries
- Scheduler and main agent state machines
- C4 module/code views, solution architecture, baseline V1
- Multi-model review reports and joint assessment
- Phase-gate remediation complete (P0/P1/P2/UX resolved)
- Implementation plan with T-000A through T-045
- Reference folders kept as placeholders only

reference/claude-hud-0.0.12/.github/workflows/build-dist.yml

@@ -0,0 +1,42 @@
+name: Build dist
+
+on:
+  push:
+    branches: [main]
+
+concurrency:
+  group: build-dist
+  cancel-in-progress: false
+
+permissions:
+  contents: write
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    if: "!contains(github.event.head_commit.message, '[auto]')"
+
+    steps:
+      - uses: actions/checkout@v6
+        with:
+          token: ${{ secrets.GITHUB_TOKEN }}
+
+      - uses: actions/setup-node@v6
+        with:
+          node-version: '20'
+          cache: 'npm'
+
+      - run: npm ci
+      - run: npm test
+      - run: npm run build
+
+      - name: Verify build output
+        run: test -f dist/index.js || exit 1
+
+      - name: Commit dist/
+        run: |
+          git config user.name "github-actions[bot]"
+          git config user.email "github-actions[bot]@users.noreply.github.com"
+          git add dist/ --force
+          git diff --staged --quiet || git commit -m "build: compile dist/ [auto]"
+          git push