Separate database tests from API integration tests

Restructured the workflow into three distinct jobs:

1. unit-tests: Runs on all PRs, no external dependencies (93 tests)
   - No API keys required
   - No database connections required
   - Fast execution

2. database-integration-tests: Runs on all PRs with databases (NEW)
   - Requires Neo4j and FalkorDB services
   - No API keys required
   - Tests database operations without external API calls
   - Includes: test_graphiti_mock.py, test_falkordb_driver.py,
     and utils/maintenance tests

3. api-integration-tests: Runs only for internal contributors
   - Requires API keys (OPENAI_API_KEY, ANTHROPIC_API_KEY, etc.)
   - Conditional execution for same-repo PRs only
   - Tests that make actual API calls to LLM providers

This ensures external contributor PRs can run both unit tests and
database integration tests successfully, while API integration tests
requiring secrets only run for internal contributors.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

.github/workflows/unit_tests.yml

@@ -24,7 +24,7 @@ jobs:
           version: "latest"
       - name: Install dependencies
         run: uv sync --all-extras
-      - name: Run unit tests (no API keys required)
+      - name: Run unit tests (no external dependencies)
         env:
           PYTHONPATH: ${{ github.workspace }}
           DISABLE_NEPTUNE: 1
@@ -44,9 +44,67 @@ jobs:
             --ignore=tests/cross_encoder/test_bge_reranker_client_int.py \
             --ignore=tests/evals/
 
-  integration-tests:
+  database-integration-tests:
     runs-on: depot-ubuntu-22.04
-    # Only run integration tests for internal contributors (push to main or PRs from same repo)
+    services:
+      falkordb:
+        image: falkordb/falkordb:latest
+        ports:
+          - 6379:6379
+        options: --health-cmd "redis-cli ping" --health-interval 10s --health-timeout 5s --health-retries 5
+      neo4j:
+        image: neo4j:5.26-community
+        ports:
+          - 7687:7687
+          - 7474:7474
+        env:
+          NEO4J_AUTH: neo4j/testpass
+          NEO4J_PLUGINS: '["apoc"]'
+        options: --health-cmd "cypher-shell -u neo4j -p testpass 'RETURN 1'" --health-interval 10s --health-timeout 5s --health-retries 10
+    steps:
+      - uses: actions/checkout@v4
+      - name: Set up Python
+        uses: actions/setup-python@v5
+        with:
+          python-version: "3.10"
+      - name: Install uv
+        uses: astral-sh/setup-uv@v3
+        with:
+          version: "latest"
+      - name: Install redis-cli for FalkorDB health check
+        run: sudo apt-get update && sudo apt-get install -y redis-tools
+      - name: Install dependencies
+        run: uv sync --all-extras
+      - name: Wait for FalkorDB
+        run: |
+          timeout 60 bash -c 'until redis-cli -h localhost -p 6379 ping; do sleep 1; done'
+      - name: Wait for Neo4j
+        run: |
+          timeout 60 bash -c 'until wget -O /dev/null http://localhost:7474 >/dev/null 2>&1; do sleep 1; done'
+      - name: Run FalkorDB driver tests
+        env:
+          PYTHONPATH: ${{ github.workspace }}
+          FALKORDB_HOST: localhost
+          FALKORDB_PORT: 6379
+          DISABLE_NEO4J: 1
+          DISABLE_NEPTUNE: 1
+        run: |
+          uv run pytest tests/driver/test_falkordb_driver.py
+      - name: Run database integration tests
+        env:
+          PYTHONPATH: ${{ github.workspace }}
+          NEO4J_URI: bolt://localhost:7687
+          NEO4J_USER: neo4j
+          NEO4J_PASSWORD: testpass
+          FALKORDB_HOST: localhost
+          FALKORDB_PORT: 6379
+          DISABLE_NEPTUNE: 1
+        run: |
+          uv run pytest tests/test_graphiti_mock.py tests/utils/maintenance/test_bulk_utils.py tests/utils/maintenance/test_edge_operations.py tests/utils/maintenance/test_node_operations.py
+
+  api-integration-tests:
+    runs-on: depot-ubuntu-22.04
+    # Only run API integration tests for internal contributors (push to main or PRs from same repo)
     if: github.event_name == 'push' || github.event.pull_request.head.repo.full_name == github.repository
     environment:
       name: development
@@ -85,25 +143,6 @@ jobs:
       - name: Wait for Neo4j
         run: |
           timeout 60 bash -c 'until wget -O /dev/null http://localhost:7474 >/dev/null 2>&1; do sleep 1; done'
-      - name: Run FalkorDB integration tests
-        env:
-          PYTHONPATH: ${{ github.workspace }}
-          FALKORDB_HOST: localhost
-          FALKORDB_PORT: 6379
-          DISABLE_NEO4J: 1
-        run: |
-          uv run pytest tests/driver/test_falkordb_driver.py
-      - name: Run database integration tests (no API keys required)
-        env:
-          PYTHONPATH: ${{ github.workspace }}
-          NEO4J_URI: bolt://localhost:7687
-          NEO4J_USER: neo4j
-          NEO4J_PASSWORD: testpass
-          FALKORDB_HOST: localhost
-          FALKORDB_PORT: 6379
-          DISABLE_NEPTUNE: 1
-        run: |
-          uv run pytest tests/test_graphiti_mock.py tests/utils/maintenance/test_bulk_utils.py tests/utils/maintenance/test_edge_operations.py tests/utils/maintenance/test_node_operations.py
       - name: Run API integration tests (requires API keys)
         env:
           PYTHONPATH: ${{ github.workspace }}