I've implemented the foundational backend components for the chore management feature.
Key changes include:
- Definition of `Chore` and `ChoreAssignment` SQLAlchemy models in `be/app/models.py`.
- Addition of corresponding relationships to `User` and `Group` models.
- Creation of an Alembic migration script (`manual_0001_add_chore_tables.py`) for the new database tables. (Note: Migration not applied in sandbox).
- Implementation of a utility function `calculate_next_due_date` in `be/app/core/chore_utils.py` for determining chore due dates based on recurrence rules.
- Definition of Pydantic schemas (`ChoreCreate`, `ChorePublic`, `ChoreAssignmentCreate`, `ChoreAssignmentPublic`, etc.) in `be/app/schemas/chore.py` for API data validation.
- Implementation of CRUD operations (create, read, update, delete) for Chores in `be/app/crud/chore.py`.
This commit lays the groundwork for adding Chore Assignment CRUD operations and the API endpoints for both chores and their assignments.
