Installer fix 2026-09-27
- Renamed migration 2026-09-10-120000-AddExamLoginGuard.php to CodeIgniter-compatible 2026-09-10-120000_AddExamLoginGuard.php so access_status is created before AddExamRoomMonitoring.
- Ensured writable/cache, debugbar, logs, session, patches, uploads are present in ZIP.
