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diff --git a/backend/logs/app/app.log b/backend/logs/app/app.log
index fc6ebc5f9..64c39d37a 100644
--- a/backend/logs/app/app.log
+++ b/backend/logs/app/app.log
@@ -40032,3 +40032,190 @@ jinja2.exceptions.UndefinedError: 'maintenance_info' is undefined
 2025-06-16 09:33:43 - [app] app - [INFO] INFO - [SHUTDOWN] 🧹 Cleanup wird ausgeführt...
 2025-06-16 09:33:43 - [app] app - [INFO] INFO - [SHUTDOWN] ✅ Queue Manager gestoppt
 2025-06-16 09:33:43 - [app] app - [ERROR] ERROR - [SHUTDOWN] ❌ Cleanup-Fehler: 'BackgroundTaskScheduler' object has no attribute 'shutdown'
+2025-06-16 09:33:45 - [app] app - [INFO] INFO - Optimierte SQLite-Engine erstellt: ./database/myp.db
+2025-06-16 09:33:46 - [app] app - [INFO] INFO - [CONFIG] Erkannte Umgebung: development
+2025-06-16 09:33:46 - [app] app - [INFO] INFO - [CONFIG] Production-Modus: False
+2025-06-16 09:33:46 - [app] app - [INFO] INFO - [CONFIG] Verwende Development-Konfiguration
+2025-06-16 09:33:46 - [app] app - [INFO] INFO - [DEVELOPMENT] Aktiviere Development-Konfiguration
+2025-06-16 09:33:46 - [app] app - [INFO] INFO - [DEVELOPMENT] ✅ MYP Development Environment Konfiguration aktiviert
+2025-06-16 09:33:46 - [app] app - [INFO] INFO - [DEVELOPMENT] ✅ Environment: Development/Testing
+2025-06-16 09:33:46 - [app] app - [INFO] INFO - [DEVELOPMENT] ✅ Debug Mode: True
+2025-06-16 09:33:46 - [app] app - [INFO] INFO - [DEVELOPMENT] ✅ SQL Echo: True
+2025-06-16 09:33:46 - [app] app - [INFO] INFO - SQLite für Raspberry Pi optimiert (reduzierte Cache-Größe, SD-Karten I/O)
+2025-06-16 09:33:46 - [app] app - [INFO] INFO - Admin-Berechtigungen beim Start korrigiert: 0 erstellt, 0 aktualisiert
+2025-06-16 09:33:46 - [app] app - [INFO] INFO - [STARTUP] 🚀 Starte MYP DEVELOPMENT-Umgebung
+2025-06-16 09:33:46 - [app] app - [INFO] INFO - [STARTUP] 🏢 Mercedes-Benz TBA Marienfelde
+2025-06-16 09:33:46 - [app] app - [INFO] INFO - [STARTUP] 🔒 Air-Gapped: True
+2025-06-16 09:33:46 - [app] app - [INFO] INFO - [STARTUP] Initialisiere Datenbank...
+2025-06-16 09:33:46 - [app] app - [INFO] INFO - Datenbank mit Optimierungen initialisiert
+2025-06-16 09:33:46 - [app] app - [INFO] INFO - [STARTUP] ✅ Datenbank initialisiert
+2025-06-16 09:33:46 - [app] app - [INFO] INFO - [STARTUP] Prüfe Initial-Admin...
+2025-06-16 09:33:47 - [app] app - [INFO] INFO - Admin-Benutzer admin (admin@mercedes-benz.com) existiert bereits. Passwort wurde zurückgesetzt.
+2025-06-16 09:33:47 - [app] app - [INFO] INFO - [STARTUP] ✅ Admin-Benutzer geprüft
+2025-06-16 09:33:47 - [app] app - [INFO] INFO - [STARTUP] Initialisiere statische Drucker...
+2025-06-16 09:33:47 - [app] app - [INFO] INFO - Drucker aktualisiert: Drucker 1 (192.168.0.100)
+2025-06-16 09:33:47 - [app] app - [INFO] INFO - Drucker aktualisiert: Drucker 2 (192.168.0.101)
+2025-06-16 09:33:47 - [app] app - [INFO] INFO - Drucker aktualisiert: Drucker 3 (192.168.0.102)
+2025-06-16 09:33:47 - [app] app - [INFO] INFO - Drucker aktualisiert: Drucker 4 (192.168.0.103)
+2025-06-16 09:33:47 - [app] app - [INFO] INFO - Drucker aktualisiert: Drucker 5 (192.168.0.104)
+2025-06-16 09:33:47 - [app] app - [INFO] INFO - Drucker aktualisiert: Drucker 6 (192.168.0.106)
+2025-06-16 09:33:47 - [app] app - [INFO] INFO - ✅ Statische Drucker-Initialisierung abgeschlossen: 0 erstellt, 6 aktualisiert
+2025-06-16 09:33:47 - [app] app - [INFO] INFO - 📍 Alle Drucker sind für Standort 'TBA Marienfelde' konfiguriert
+2025-06-16 09:33:47 - [app] app - [INFO] INFO - 🌐 IP-Bereich: 192.168.0.100-106 (außer .105)
+2025-06-16 09:33:47 - [app] app - [INFO] INFO - [STARTUP] ✅ Statische Drucker konfiguriert
+2025-06-16 09:33:47 - [app] app - [INFO] INFO - [STARTUP] Starte Queue Manager...
+2025-06-16 09:33:47 - [app] app - [INFO] INFO - [STARTUP] ✅ Queue Manager gestartet
+2025-06-16 09:33:47 - [app] app - [INFO] INFO - [STARTUP] Starte Job Scheduler...
+2025-06-16 09:33:47 - [app] app - [INFO] INFO - [STARTUP] ✅ Job Scheduler gestartet
+2025-06-16 09:33:47 - [app] app - [INFO] INFO - [STARTUP] 🌐 Server startet auf http://0.0.0.0:5000
+2025-06-16 09:33:47 - [app] app - [INFO] INFO - Not Found (404): http://127.0.0.1:5000/api/printers/2/connect
+2025-06-16 09:33:50 - [app] app - [INFO] INFO - Not Found (404): http://127.0.0.1:5000/api/printers/4/connect
+2025-06-16 09:33:53 - [app] app - [INFO] INFO - Not Found (404): http://127.0.0.1:5000/api/printers/6/connect
+2025-06-16 09:33:55 - [app] app - [INFO] INFO - Not Found (404): http://127.0.0.1:5000/api/printers/5/connect
+2025-06-16 09:34:02 - [app] app - [INFO] INFO - ✅ API: 6 Drucker abgerufen (include_inactive=False)
+2025-06-16 09:34:03 - [app] app - [INFO] INFO - ✅ API: 6 Drucker abgerufen (include_inactive=False)
+2025-06-16 09:34:03 - [app] app - [INFO] INFO - ✅ API: 6 Drucker abgerufen (include_inactive=False)
+2025-06-16 09:34:17 - [app] app - [INFO] INFO - ✅ API: 6 Drucker abgerufen (include_inactive=False)
+2025-06-16 09:34:25 - [app] app - [INFO] INFO - Not Found (404): http://127.0.0.1:5000/api/printers/6/connect
+2025-06-16 09:34:33 - [app] app - [INFO] INFO - ✅ API: 6 Drucker abgerufen (include_inactive=False)
+2025-06-16 09:34:52 - [app] app - [INFO] INFO - ✅ API: 6 Drucker abgerufen (include_inactive=False)
+2025-06-16 09:35:03 - [app] app - [INFO] INFO - ✅ API: 6 Drucker abgerufen (include_inactive=False)
+2025-06-16 09:35:19 - [app] app - [INFO] INFO - ✅ API: 6 Drucker abgerufen (include_inactive=False)
+2025-06-16 09:35:33 - [app] app - [INFO] INFO - ✅ API: 6 Drucker abgerufen (include_inactive=False)
+2025-06-16 09:35:49 - [app] app - [INFO] INFO - ✅ API: 6 Drucker abgerufen (include_inactive=False)
+2025-06-16 09:36:03 - [app] app - [INFO] INFO - ✅ API: 6 Drucker abgerufen (include_inactive=False)
+2025-06-16 09:36:19 - [app] app - [INFO] INFO - ✅ API: 6 Drucker abgerufen (include_inactive=False)
+2025-06-16 09:36:33 - [app] app - [INFO] INFO - ✅ API: 6 Drucker abgerufen (include_inactive=False)
+2025-06-16 09:36:49 - [app] app - [INFO] INFO - ✅ API: 6 Drucker abgerufen (include_inactive=False)
+2025-06-16 09:37:03 - [app] app - [INFO] INFO - ✅ API: 6 Drucker abgerufen (include_inactive=False)
+2025-06-16 09:37:19 - [app] app - [INFO] INFO - ✅ API: 6 Drucker abgerufen (include_inactive=False)
+2025-06-16 09:37:33 - [app] app - [INFO] INFO - ✅ API: 6 Drucker abgerufen (include_inactive=False)
+2025-06-16 09:37:49 - [app] app - [INFO] INFO - ✅ API: 6 Drucker abgerufen (include_inactive=False)
+2025-06-16 09:38:03 - [app] app - [INFO] INFO - ✅ API: 6 Drucker abgerufen (include_inactive=False)
+2025-06-16 09:38:19 - [app] app - [INFO] INFO - ✅ API: 6 Drucker abgerufen (include_inactive=False)
+2025-06-16 09:38:33 - [app] app - [INFO] INFO - ✅ API: 6 Drucker abgerufen (include_inactive=False)
+2025-06-16 09:38:49 - [app] app - [INFO] INFO - ✅ API: 6 Drucker abgerufen (include_inactive=False)
+2025-06-16 09:39:03 - [app] app - [INFO] INFO - ✅ API: 6 Drucker abgerufen (include_inactive=False)
+2025-06-16 09:39:19 - [app] app - [INFO] INFO - ✅ API: 6 Drucker abgerufen (include_inactive=False)
+2025-06-16 09:39:33 - [app] app - [INFO] INFO - ✅ API: 6 Drucker abgerufen (include_inactive=False)
+2025-06-16 09:39:56 - [app] app - [INFO] INFO - ✅ API: 6 Drucker abgerufen (include_inactive=False)
+2025-06-16 09:40:03 - [app] app - [INFO] INFO - ✅ API: 6 Drucker abgerufen (include_inactive=False)
+2025-06-16 09:40:19 - [app] app - [INFO] INFO - ✅ API: 6 Drucker abgerufen (include_inactive=False)
+2025-06-16 09:40:33 - [app] app - [INFO] INFO - Locating template 'dashboard.html':
+    1: trying loader of application '__main__'
+       class: jinja2.loaders.FileSystemLoader
+       encoding: 'utf-8'
+       followlinks: False
+       searchpath:
+         - C:\Users\TTOMCZA.EMEA\Dev\Projektarbeit-MYP\backend\templates
+       -> found ('C:\\Users\\TTOMCZA.EMEA\\Dev\\Projektarbeit-MYP\\backend\\templates\\dashboard.html')
+2025-06-16 09:40:33 - [app] app - [INFO] INFO - Locating template 'base.html':
+    1: trying loader of application '__main__'
+       class: jinja2.loaders.FileSystemLoader
+       encoding: 'utf-8'
+       followlinks: False
+       searchpath:
+         - C:\Users\TTOMCZA.EMEA\Dev\Projektarbeit-MYP\backend\templates
+       -> found ('C:\\Users\\TTOMCZA.EMEA\\Dev\\Projektarbeit-MYP\\backend\\templates\\base.html')
+2025-06-16 09:40:33 - [app] app - [DEBUG] DEBUG - Response: 200
+2025-06-16 09:40:49 - [app] app - [DEBUG] DEBUG - Request: GET /api/printers
+2025-06-16 09:40:49 - [app] app - [INFO] INFO - ✅ API: 6 Drucker abgerufen (include_inactive=False)
+2025-06-16 09:40:49 - [app] app - [DEBUG] DEBUG - Response: 200
+2025-06-16 09:41:03 - [app] app - [DEBUG] DEBUG - Request: GET /api/printers
+2025-06-16 09:41:03 - [app] app - [DEBUG] DEBUG - Request: GET /api/notifications
+2025-06-16 09:41:03 - [app] app - [DEBUG] DEBUG - Response: 200
+2025-06-16 09:41:03 - [app] app - [INFO] INFO - ✅ API: 6 Drucker abgerufen (include_inactive=False)
+2025-06-16 09:41:03 - [app] app - [DEBUG] DEBUG - Response: 200
+2025-06-16 09:41:23 - [app] app - [DEBUG] DEBUG - Request: GET /api/notifications
+2025-06-16 09:41:23 - [app] app - [DEBUG] DEBUG - Request: GET /api/printers
+2025-06-16 09:41:23 - [app] app - [DEBUG] DEBUG - Response: 200
+2025-06-16 09:41:23 - [app] app - [INFO] INFO - ✅ API: 6 Drucker abgerufen (include_inactive=False)
+2025-06-16 09:41:23 - [app] app - [DEBUG] DEBUG - Response: 200
+2025-06-16 09:42:23 - [app] app - [DEBUG] DEBUG - Request: GET /api/notifications
+2025-06-16 09:42:23 - [app] app - [DEBUG] DEBUG - Request: GET /api/printers
+2025-06-16 09:42:23 - [app] app - [DEBUG] DEBUG - Response: 200
+2025-06-16 09:42:23 - [app] app - [INFO] INFO - ✅ API: 6 Drucker abgerufen (include_inactive=False)
+2025-06-16 09:42:23 - [app] app - [DEBUG] DEBUG - Response: 200
+2025-06-16 09:42:23 - [app] app - [DEBUG] DEBUG - Request: GET /api/notifications
+2025-06-16 09:42:23 - [app] app - [DEBUG] DEBUG - Request: GET /api/printers
+2025-06-16 09:42:23 - [app] app - [DEBUG] DEBUG - Response: 200
+2025-06-16 09:42:23 - [app] app - [INFO] INFO - ✅ API: 6 Drucker abgerufen (include_inactive=False)
+2025-06-16 09:42:23 - [app] app - [DEBUG] DEBUG - Response: 200
+2025-06-16 09:43:23 - [app] app - [DEBUG] DEBUG - Request: GET /api/notifications
+2025-06-16 09:43:23 - [app] app - [DEBUG] DEBUG - Response: 200
+2025-06-16 09:43:23 - [app] app - [DEBUG] DEBUG - Request: GET /api/printers
+2025-06-16 09:43:23 - [app] app - [INFO] INFO - ✅ API: 6 Drucker abgerufen (include_inactive=False)
+2025-06-16 09:43:23 - [app] app - [DEBUG] DEBUG - Response: 200
+2025-06-16 09:43:23 - [app] app - [DEBUG] DEBUG - Request: GET /api/notifications
+2025-06-16 09:43:23 - [app] app - [DEBUG] DEBUG - Response: 200
+2025-06-16 09:43:23 - [app] app - [DEBUG] DEBUG - Request: GET /api/printers
+2025-06-16 09:43:23 - [app] app - [INFO] INFO - ✅ API: 6 Drucker abgerufen (include_inactive=False)
+2025-06-16 09:43:23 - [app] app - [DEBUG] DEBUG - Response: 200
+2025-06-16 09:44:23 - [app] app - [DEBUG] DEBUG - Request: GET /api/notifications
+2025-06-16 09:44:23 - [app] app - [DEBUG] DEBUG - Request: GET /api/printers
+2025-06-16 09:44:23 - [app] app - [DEBUG] DEBUG - Response: 200
+2025-06-16 09:44:23 - [app] app - [INFO] INFO - ✅ API: 6 Drucker abgerufen (include_inactive=False)
+2025-06-16 09:44:23 - [app] app - [DEBUG] DEBUG - Response: 200
+2025-06-16 09:44:23 - [app] app - [DEBUG] DEBUG - Request: GET /api/notifications
+2025-06-16 09:44:23 - [app] app - [DEBUG] DEBUG - Request: GET /api/printers
+2025-06-16 09:44:23 - [app] app - [DEBUG] DEBUG - Response: 200
+2025-06-16 09:44:23 - [app] app - [INFO] INFO - ✅ API: 6 Drucker abgerufen (include_inactive=False)
+2025-06-16 09:44:23 - [app] app - [DEBUG] DEBUG - Response: 200
+2025-06-16 09:45:23 - [app] app - [DEBUG] DEBUG - Request: GET /api/notifications
+2025-06-16 09:45:23 - [app] app - [DEBUG] DEBUG - Request: GET /api/printers
+2025-06-16 09:45:23 - [app] app - [DEBUG] DEBUG - Response: 200
+2025-06-16 09:45:23 - [app] app - [INFO] INFO - ✅ API: 6 Drucker abgerufen (include_inactive=False)
+2025-06-16 09:45:23 - [app] app - [DEBUG] DEBUG - Response: 200
+2025-06-16 09:45:23 - [app] app - [DEBUG] DEBUG - Request: GET /api/notifications
+2025-06-16 09:45:23 - [app] app - [DEBUG] DEBUG - Response: 200
+2025-06-16 09:45:23 - [app] app - [DEBUG] DEBUG - Request: GET /api/printers
+2025-06-16 09:45:23 - [app] app - [INFO] INFO - ✅ API: 6 Drucker abgerufen (include_inactive=False)
+2025-06-16 09:45:23 - [app] app - [DEBUG] DEBUG - Response: 200
+2025-06-16 09:46:23 - [app] app - [DEBUG] DEBUG - Request: GET /api/notifications
+2025-06-16 09:46:23 - [app] app - [DEBUG] DEBUG - Request: GET /api/printers
+2025-06-16 09:46:23 - [app] app - [DEBUG] DEBUG - Response: 200
+2025-06-16 09:46:23 - [app] app - [INFO] INFO - ✅ API: 6 Drucker abgerufen (include_inactive=False)
+2025-06-16 09:46:23 - [app] app - [DEBUG] DEBUG - Response: 200
+2025-06-16 09:46:23 - [app] app - [DEBUG] DEBUG - Request: GET /api/notifications
+2025-06-16 09:46:23 - [app] app - [DEBUG] DEBUG - Request: GET /api/printers
+2025-06-16 09:46:23 - [app] app - [DEBUG] DEBUG - Response: 200
+2025-06-16 09:46:23 - [app] app - [INFO] INFO - ✅ API: 6 Drucker abgerufen (include_inactive=False)
+2025-06-16 09:46:23 - [app] app - [DEBUG] DEBUG - Response: 200
+2025-06-16 09:47:23 - [app] app - [DEBUG] DEBUG - Request: GET /api/notifications
+2025-06-16 09:47:23 - [app] app - [DEBUG] DEBUG - Request: GET /api/printers
+2025-06-16 09:47:23 - [app] app - [DEBUG] DEBUG - Response: 200
+2025-06-16 09:47:23 - [app] app - [INFO] INFO - ✅ API: 6 Drucker abgerufen (include_inactive=False)
+2025-06-16 09:47:23 - [app] app - [DEBUG] DEBUG - Response: 200
+2025-06-16 09:47:23 - [app] app - [DEBUG] DEBUG - Request: GET /api/notifications
+2025-06-16 09:47:23 - [app] app - [DEBUG] DEBUG - Request: GET /api/printers
+2025-06-16 09:47:23 - [app] app - [DEBUG] DEBUG - Response: 200
+2025-06-16 09:47:23 - [app] app - [INFO] INFO - ✅ API: 6 Drucker abgerufen (include_inactive=False)
+2025-06-16 09:47:23 - [app] app - [DEBUG] DEBUG - Response: 200
+2025-06-16 09:48:23 - [app] app - [DEBUG] DEBUG - Request: GET /api/notifications
+2025-06-16 09:48:23 - [app] app - [DEBUG] DEBUG - Request: GET /api/printers
+2025-06-16 09:48:23 - [app] app - [DEBUG] DEBUG - Response: 200
+2025-06-16 09:48:23 - [app] app - [INFO] INFO - ✅ API: 6 Drucker abgerufen (include_inactive=False)
+2025-06-16 09:48:23 - [app] app - [DEBUG] DEBUG - Response: 200
+2025-06-16 09:48:23 - [app] app - [DEBUG] DEBUG - Request: GET /api/notifications
+2025-06-16 09:48:23 - [app] app - [DEBUG] DEBUG - Request: GET /api/printers
+2025-06-16 09:48:23 - [app] app - [DEBUG] DEBUG - Response: 200
+2025-06-16 09:48:23 - [app] app - [INFO] INFO - ✅ API: 6 Drucker abgerufen (include_inactive=False)
+2025-06-16 09:48:23 - [app] app - [DEBUG] DEBUG - Response: 200
+2025-06-16 09:49:23 - [app] app - [DEBUG] DEBUG - Request: GET /api/notifications
+2025-06-16 09:49:23 - [app] app - [DEBUG] DEBUG - Response: 200
+2025-06-16 09:49:23 - [app] app - [DEBUG] DEBUG - Request: GET /api/printers
+2025-06-16 09:49:23 - [app] app - [DEBUG] DEBUG - Request: GET /api/notifications
+2025-06-16 09:49:23 - [app] app - [INFO] INFO - ✅ API: 6 Drucker abgerufen (include_inactive=False)
+2025-06-16 09:49:23 - [app] app - [DEBUG] DEBUG - Response: 200
+2025-06-16 09:49:23 - [app] app - [DEBUG] DEBUG - Response: 200
+2025-06-16 09:49:23 - [app] app - [DEBUG] DEBUG - Request: GET /api/printers
+2025-06-16 09:49:23 - [app] app - [INFO] INFO - ✅ API: 6 Drucker abgerufen (include_inactive=False)
+2025-06-16 09:49:23 - [app] app - [DEBUG] DEBUG - Response: 200
+2025-06-16 09:49:44 - [app] app - [DEBUG] DEBUG - Request: GET /api/printers
+2025-06-16 09:49:44 - [app] app - [DEBUG] DEBUG - Request: GET /api/notifications
+2025-06-16 09:49:44 - [app] app - [DEBUG] DEBUG - Response: 200
+2025-06-16 09:49:44 - [app] app - [INFO] INFO - ✅ API: 6 Drucker abgerufen (include_inactive=False)
+2025-06-16 09:49:44 - [app] app - [DEBUG] DEBUG - Response: 200
+2025-06-16 09:49:49 - [app] app - [DEBUG] DEBUG - Request: GET /api/printers
+2025-06-16 09:49:49 - [app] app - [INFO] INFO - ✅ API: 6 Drucker abgerufen (include_inactive=False)
+2025-06-16 09:49:49 - [app] app - [DEBUG] DEBUG - Response: 200
diff --git a/backend/logs/job_queue_system/job_queue_system.log b/backend/logs/job_queue_system/job_queue_system.log
index feb7044fa..458d9da7d 100644
--- a/backend/logs/job_queue_system/job_queue_system.log
+++ b/backend/logs/job_queue_system/job_queue_system.log
@@ -1133,3 +1133,5 @@
 2025-06-16 09:33:45 - [job_queue_system] job_queue_system - [INFO] INFO - ✅ Job & Queue System Module initialisiert
 2025-06-16 09:33:45 - [job_queue_system] job_queue_system - [INFO] INFO - 📊 MASSIVE Konsolidierung: 4 Dateien → 1 Datei (75% Reduktion)
 2025-06-16 09:33:47 - [job_queue_system] job_queue_system - [INFO] INFO - Queue Manager gestartet (Legacy-Kompatibilität)
+2025-06-16 09:50:00 - [job_queue_system] job_queue_system - [INFO] INFO - Queue Manager gestoppt (Legacy-Kompatibilität)
+2025-06-16 09:50:00 - [job_queue_system] job_queue_system - [INFO] INFO - Queue Manager gestoppt (Legacy-Kompatibilität)