Backend:
- Add phone, operating_hours, is_24_hours fields to Tenant model
- Create migration 0005_tenants_operating_hours.sql for new columns
- Update postgres repository queries for new fields
Frontend Company.tsx:
- Expand company edit form with phone, city, state
- Add operating hours section with 24h toggle
- Add user edit/delete buttons with Actions column
- Add user edit modal with name, email, role fields
- Add handleDeleteUser and handleSaveUser functions
