* Add async support and dependencies to pyproject.toml files
- Added `asgi-lifespan>=2.1.0` to dependencies.
- Configured `asyncio_mode` and `asyncio_default_fixture_loop_scope` for pytest.
- Updated `tool.uv` section with `asgi-lifespan` in dev-dependencies.
* Convert test fixtures to async and use AsyncClient for HTTP requests
* Handle 'ImportFrom' nodes in AST validation to support module attribute imports
* Convert test cases to use async HTTP client
- Updated test cases in `test_database.py`, `test_endpoints.py`, `test_user.py`, `test_variable.py`, `test_files.py`, `test_chat_endpoint.py`, `test_misc.py`, `test_messages_endpoints.py`, `test_api_key.py`, `test_webhook.py`, and `test_login.py` to use `httpx.AsyncClient` instead of `fastapi.TestClient`.
- Modified test functions to be asynchronous and use `await` for HTTP requests.
- Adjusted fixtures and helper functions to support asynchronous operations.
- Ensured consistency in endpoint paths and request methods across all test cases.
* Refactor string concatenation to f-string in test_chat_endpoint.py
* [autofix.ci] apply automated fixes
* Refactor import validation to use pattern matching for AST nodes
* Set `startup_timeout` and `shutdown_timeout` to `None` in `LifespanManager` for test files.
* Convert test functions to async in `test_messages_endpoints.py`
* Add `api_key_required` marker to assistant component tests
---------
Co-authored-by: autofix-ci[bot] <114827586+autofix-ci[bot]@users.noreply.github.com>
