- Add sqlalchemy-utc package to handle timezone-aware datetimes
- Replace DateTime(timezone=True) with UtcDateTime in benchmark models
- Replace func.now() with utcnow() for proper UTC defaults
- Update pre-commit hook to enforce UtcDateTime usage
- Fixes timezone mismatch errors when SQLite returns naive datetimes
SQLite doesn't natively support timezone-aware datetimes, causing
issues when comparing timestamps. The sqlalchemy-utc package provides
a TypeDecorator that automatically converts between naive and aware
datetimes, ensuring consistent UTC handling across the application.
- Fixed timezone-aware/naive datetime subtraction error in benchmark
- Added timezone=True to all DateTime columns in benchmark models
- Created pre-commit hook to enforce timezone=True on DateTime columns
- Prevents future timezone-related bugs in database models
