- Introduced new unit tests for session CRUD operations, including `update_refresh_token`, `cleanup_expired`, and multi-user session handling.
- Added comprehensive tests for `CRUDBase` methods, covering edge cases, error handling, and UUID validation.
- Reduced default test session creation from 5 to 2 for performance optimization.
- Enhanced pagination, filtering, and sorting validations in `get_multi_with_total`.
- Improved error handling with descriptive assertions for database exceptions.
- Introduced tests for eager-loaded relationships in user sessions for comprehensive coverage.
- Added `init_db.py` to handle async database initialization with the creation of the first superuser if configured.
- Introduced comprehensive tests for session management APIs, including session listing, revocation, and cleanup.
- Enhanced CRUD session logic with UUID utilities and improved error handling.
