Changes:
1. Fixed create_user_handler to properly initialize modules JSON for new users
2. Fixed edit_user_handler to manage module assignments instead of non-existent email field
3. Updated settings_handler to select modules column instead of email from users table
4. Added validate_and_repair_user_modules function in setup_complete_database.py to ensure all users have correct module assignments
5. Added create_app_license function to create development license file during database setup
6. Added ensure_app_license function to docker-entrypoint.sh for license creation on container startup
7. Added user modules validation on Flask app startup to repair any malformed modules
8. License file is automatically created with 1-year validity on deployment
This ensures:
- New users created via UI get proper module assignments
- Existing users are validated/repaired on app startup
- Non-superadmin users can login after license check passes
- All deployments have a valid development license by default
