Update database paths and fix foreign key references across coordinator API

- Change SQLite database path from `/home/oib/windsurf/aitbc/data/` to `/opt/data/`
- Fix foreign key references to use correct table names (users, wallets, gpu_registry)
- Replace governance router with new governance and community routers
- Add multi-modal RL router to main application
- Simplify DEPLOYMENT_READINESS_REPORT.md to focus on production deployment status
- Update governance router with decentralized DAO voting

.github/workflows/phase8-integration.yml

@@ -0,0 +1,48 @@
+name: Phase 8 Integration Tests
+
+on:
+  push:
+    branches: [main]
+    paths:
+      - 'apps/coordinator-api/tests/test_phase8_tasks.py'
+      - 'apps/coordinator-api/tests/test_phase8_optional_endpoints.py'
+      - 'apps/coordinator-api/**'
+  pull_request:
+    branches: [main]
+    paths:
+      - 'apps/coordinator-api/tests/test_phase8_tasks.py'
+      - 'apps/coordinator-api/tests/test_phase8_optional_endpoints.py'
+      - 'apps/coordinator-api/**'
+
+jobs:
+  phase8-integration:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        python-version: ['3.13']
+      fail-fast: false
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Set up Python ${{ matrix.python-version }}
+        uses: actions/setup-python@v5
+        with:
+          python-version: ${{ matrix.python-version }}
+
+      - name: Install dependencies
+        run: |
+          python -m pip install --upgrade pip
+          pip install -e .
+          pip install -e packages/py/aitbc-crypto
+          pip install fastapi uvicorn sqlmodel pydantic-settings aiosqlite slowapi orjson prometheus-client
+          pip install pytest pytest-asyncio pytest-cov
+
+      - name: Run Phase 8 health tests (skips if env not set)
+        run: |
+          cd apps/coordinator-api
+          python -m pytest tests/test_phase8_tasks.py -v --tb=short --disable-warnings
+
+      - name: Run optional Phase 8 endpoint tests (skips if env not set)
+        run: |
+          cd apps/coordinator-api
+          python -m pytest tests/test_phase8_optional_endpoints.py -v --tb=short --disable-warnings