- Introduced `pyproject.toml` to centralize backend tool configurations (e.g., Ruff, mypy, coverage, pytest).
- Replaced Black, isort, and Flake8 with Ruff for linting, formatting, and import sorting.
- Updated `requirements.txt` to include Ruff and remove replaced tools.
- Added `Makefile` to streamline development workflows with commands for linting, formatting, type-checking, testing, and cleanup.
- Introduced comprehensive test coverage for user-related API endpoints (`/users`, `/users/me`), including edge cases and error scenarios.
- Added success and error path tests for admin routes, including user management (CRUD operations, bulk actions) and organization management.
- Enhanced test reliability through improved exception handling and validation.
- Included test-specific scenarios for handling unexpected errors and reporting gaps in coverage with actionable recommendations.
- Added detailed coverage report to track progress and identify improvement areas.
- Introduced comprehensive tests for session CRUD error cases, covering exception handling, rollback mechanics, and database failure propagation.
- Added robust API error handling tests for admin routes, including user and organization management.
- Enhanced test coverage for unexpected errors, edge cases, and validation flows in session and admin operations.
