- Updated test cases in `test_workers.py` to replace dictionary-based constraints with instances of `PreShiftConstraint`, `PostShiftConstraint`, and `MaxShiftsPerWeekConstraint`.
- Added a new test `test_worker_assign_as_block_preference2` to verify worker preferences for block assignments.
- Marked tests as slow where appropriate to improve test suite performance.
- Updated .gitignore to exclude 'cons/' directory.
- Refactored gen_cons.py to extract leave and rota assignments from calendar data, and added functionality to handle shift assignments from rota data.
- Modified timetable.css to include styles for force-assigned shifts.
- Enhanced shifts.py to manage forced assignments and handle leave conflicts, including new methods for date-based assignments.
- Updated workers.py to introduce structured hard day dependencies and exclusions, allowing for more flexible scheduling.
- Adjusted test_workers.py to reflect changes in hard day dependency and exclusion methods, ensuring compatibility with new data structures.
Ross