- Ignored additional Ruff rules for test files, SQLAlchemy fixtures, and FastAPI-specific naming conventions.
- Suppressed passlib bcrypt warnings in `core.auth`.
- Improved exception handling in session marking with explicit logging for token parsing failures.
- 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.
