Sindbad~EG File Manager

Due to file size, I'll create areas.php, districts.php, and assemblies.php with:

FEATURES TO IMPLEMENT:
1. Full CRUD operations (Create, Read, Update, Delete)
2. Admin assignment modal with user search
3. View assigned admins per location
4. Remove admin assignments
5. Gradient UI with theme colors
6. Responsive design
7. Validation and error handling
8. Audit logging

FILES TO CREATE:
- areas.php (complete management for areas)
- districts.php (complete management for districts)
- assemblies.php (complete management for assemblies)
- assign_admin.php (API endpoint for assignments)

Let me create simplified, working versions now...