- Add LLMEndpoint model to models.py with encrypted api_key field
- Create encryption.py with Fernet symmetric encryption (key derived from JWT_SECRET via PBKDF2)
- Implement full endpoints router: list, get, create, update, delete + test_connection
- Test endpoint calls adapter.test_connection() and list_models()
- API keys never exposed in responses; has_api_key boolean flag added
- 25 tests in test_endpoints.py, all 444 tests passing
Set up all directories from the spec's Project Structure section:
- backend/ with routers/, engine/adapters/, engine/scorers/, mcp/,
websocket/, tests/ (all with __init__.py)
- frontend/src/ with pages/, components/, api/ (.gitkeep)
- docker/ (.gitkeep)
- alembic/versions/ (.gitkeep)
