- Add TimeBlock approval status with manager approval workflow
- Create core mixins for staff permission restrictions (DenyStaffWritePermission, etc.)
- Add StaffDashboard page for staff-specific views
- Refactor MyAvailability page for time block management
- Update field mobile status machine and views
- Add per-user permission overrides via JSONField
- Document core mixins and permission system in CLAUDE.md
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Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>