🎉 Improved logging system & documentation updates 🎉

2025-06-01 03:31:48 +02:00 · 2025-06-01 03:31:48 +02:00 · 941ee21c76
commit 941ee21c76
parent 09462724e0
57 changed files with 3743 additions and 668 deletions
--- a/backend/app.py
+++ b/backend/app.py
@ -151,6 +151,19 @@ from utils.multi_location_system import (
 # Drucker-Monitor importieren
 from utils.printer_monitor import printer_monitor

+# Timeout Force-Quit Manager importieren
+try:
+    from utils.timeout_force_quit_manager import (
+        get_timeout_manager, start_force_quit_timeout, cancel_force_quit_timeout,
+        extend_force_quit_timeout, get_force_quit_status, register_shutdown_callback,
+        timeout_context
+    )
+    TIMEOUT_FORCE_QUIT_AVAILABLE = True
+    app_logger.info("✅ Timeout Force-Quit Manager geladen")
+except ImportError as e:
+    TIMEOUT_FORCE_QUIT_AVAILABLE = False
+    app_logger.warning(f"⚠️ Timeout Force-Quit Manager nicht verfügbar: {e}")
+
 # Flask-App initialisieren
 app = Flask(__name__)
 app.secret_key = SECRET_KEY
--- a/backend/config/pycache/settings_copy.cpython-313.pyc
+++ b/backend/config/pycache/settings_copy.cpython-313.pyc
--- a/backend/database/myp.db-shm
+++ b/backend/database/myp.db-shm
--- a/backend/database/myp.db-wal
+++ b/backend/database/myp.db-wal
--- a/backend/docs/LIGHT_MODE_VERBESSERUNGEN.md
+++ b/backend/docs/LIGHT_MODE_VERBESSERUNGEN.md
@ -0,0 +1 @@
+ 
--- a/backend/logs/analytics/analytics.log
+++ b/backend/logs/analytics/analytics.log
@ -1,3 +1,5 @@
 2025-06-01 03:01:13 - [analytics] analytics - [INFO] INFO - 📈 Analytics Engine initialisiert
 2025-06-01 03:04:47 - [analytics] analytics - [INFO] INFO - 📈 Analytics Engine initialisiert
 2025-06-01 03:06:06 - [analytics] analytics - [INFO] INFO - 📈 Analytics Engine initialisiert
+2025-06-01 03:29:14 - [analytics] analytics - [INFO] INFO - 📈 Analytics Engine initialisiert
+2025-06-01 03:31:39 - [analytics] analytics - [INFO] INFO - 📈 Analytics Engine initialisiert
--- a/backend/logs/app/app.log
+++ b/backend/logs/app/app.log
@ -190,3 +190,20 @@
 2025-06-01 03:08:13 - [app] app - [WARNING] WARNING - System-Performance-Metriken nicht verfügbar: argument 1 (impossible<bad format char>)
 2025-06-01 03:08:13 - [app] app - [INFO] INFO - Admin-Check für Funktion api_admin_stats_live: User authenticated: True, User ID: 1, Is Admin: True
 2025-06-01 03:08:14 - [app] app - [WARNING] WARNING - System-Performance-Metriken nicht verfügbar: argument 1 (impossible<bad format char>)
+2025-06-01 03:29:14 - [app] app - [INFO] INFO - Optimierte SQLite-Engine erstellt: C:\Users\TTOMCZA.EMEA\Dev\Projektarbeit-MYP\backend\database\myp.db
+2025-06-01 03:29:16 - [app] app - [INFO] INFO - SQLite für Produktionsumgebung konfiguriert (WAL-Modus, Cache, Optimierungen)
+2025-06-01 03:29:16 - [app] app - [INFO] INFO - ✅ Zentraler Shutdown-Manager initialisiert
+2025-06-01 03:29:16 - [app] app - [INFO] INFO - 🔄 Starte Datenbank-Setup und Migrationen...
+2025-06-01 03:29:16 - [app] app - [INFO] INFO - Datenbank mit Optimierungen initialisiert
+2025-06-01 03:29:16 - [app] app - [INFO] INFO - ✅ JobOrder-Tabelle bereits vorhanden
+2025-06-01 03:29:16 - [app] app - [INFO] INFO - Admin-Benutzer admin (admin@mercedes-benz.com) existiert bereits. Passwort wurde zurückgesetzt.
+2025-06-01 03:29:16 - [app] app - [INFO] INFO - ✅ Datenbank-Setup und Migrationen erfolgreich abgeschlossen
+2025-06-01 03:29:16 - [app] app - [INFO] INFO - 🖨️ Starte automatische Steckdosen-Initialisierung...
+2025-06-01 03:29:16 - [app] app - [INFO] INFO - ℹ️ Keine Drucker zur Initialisierung gefunden
+2025-06-01 03:29:16 - [app] app - [INFO] INFO - 🔄 Debug-Modus: Queue Manager deaktiviert für Entwicklung
+2025-06-01 03:29:16 - [app] app - [INFO] INFO - Job-Scheduler gestartet
+2025-06-01 03:29:16 - [app] app - [INFO] INFO - Starte Debug-Server auf 0.0.0.0:5000 (HTTP)
+2025-06-01 03:29:16 - [app] app - [INFO] INFO - Windows-Debug-Modus: Auto-Reload deaktiviert
+2025-06-01 03:29:37 - [app] app - [INFO] INFO - Benutzer admin@mercedes-benz.com hat sich abgemeldet
+2025-06-01 03:31:39 - [app] app - [INFO] INFO - Optimierte SQLite-Engine erstellt: C:\Users\TTOMCZA.EMEA\Dev\Projektarbeit-MYP\backend\database\myp.db
+2025-06-01 03:31:40 - [app] app - [INFO] INFO - SQLite für Produktionsumgebung konfiguriert (WAL-Modus, Cache, Optimierungen)
--- a/backend/logs/auth/auth.log
+++ b/backend/logs/auth/auth.log
@ -38,3 +38,5 @@
 2025-05-31 23:04:09 - myp.auth - INFO - Benutzer admin@mercedes-benz.com hat sich erfolgreich angemeldet
 2025-05-31 23:25:26 - myp.auth - WARNING - JSON-Parsing fehlgeschlagen: 400 Bad Request: Failed to decode JSON object: Expecting value: line 1 column 1 (char 0)
 2025-05-31 23:25:26 - myp.auth - INFO - Benutzer admin@mercedes-benz.com hat sich erfolgreich angemeldet
+2025-06-01 03:29:42 - [auth] auth - [WARNING] WARNING - JSON-Parsing fehlgeschlagen: 400 Bad Request: Failed to decode JSON object: Expecting value: line 1 column 1 (char 0)
+2025-06-01 03:29:42 - [auth] auth - [INFO] INFO - Benutzer admin@mercedes-benz.com hat sich erfolgreich angemeldet
--- a/backend/logs/backup/backup.log
+++ b/backend/logs/backup/backup.log
@ -1,3 +1,5 @@
 2025-06-01 03:01:13 - [backup] backup - [INFO] INFO - BackupManager initialisiert (minimal implementation)
 2025-06-01 03:04:47 - [backup] backup - [INFO] INFO - BackupManager initialisiert (minimal implementation)
 2025-06-01 03:06:06 - [backup] backup - [INFO] INFO - BackupManager initialisiert (minimal implementation)
+2025-06-01 03:29:14 - [backup] backup - [INFO] INFO - BackupManager initialisiert (minimal implementation)
+2025-06-01 03:31:39 - [backup] backup - [INFO] INFO - BackupManager initialisiert (minimal implementation)
--- a/backend/logs/dashboard/dashboard.log
+++ b/backend/logs/dashboard/dashboard.log
@ -10,3 +10,8 @@
 2025-06-01 03:06:07 - [dashboard] dashboard - [INFO] INFO - Dashboard-Background-Worker gestartet
 2025-06-01 03:06:07 - [dashboard] dashboard - [INFO] INFO - Dashboard WebSocket-Server wird mit threading initialisiert (eventlet-Fallback)
 2025-06-01 03:06:07 - [dashboard] dashboard - [INFO] INFO - Dashboard WebSocket-Server initialisiert (async_mode: threading)
+2025-06-01 03:29:15 - [dashboard] dashboard - [INFO] INFO - Dashboard-Background-Worker gestartet
+2025-06-01 03:29:16 - [dashboard] dashboard - [INFO] INFO - Dashboard-Background-Worker gestartet
+2025-06-01 03:29:16 - [dashboard] dashboard - [INFO] INFO - Dashboard WebSocket-Server wird mit threading initialisiert (eventlet-Fallback)
+2025-06-01 03:29:16 - [dashboard] dashboard - [INFO] INFO - Dashboard WebSocket-Server initialisiert (async_mode: threading)
+2025-06-01 03:31:40 - [dashboard] dashboard - [INFO] INFO - Dashboard-Background-Worker gestartet
--- a/backend/logs/database/database.log
+++ b/backend/logs/database/database.log
@ -1,3 +1,5 @@
 2025-06-01 03:01:13 - [database] database - [INFO] INFO - Datenbank-Wartungs-Scheduler gestartet
 2025-06-01 03:04:47 - [database] database - [INFO] INFO - Datenbank-Wartungs-Scheduler gestartet
 2025-06-01 03:06:06 - [database] database - [INFO] INFO - Datenbank-Wartungs-Scheduler gestartet
+2025-06-01 03:29:14 - [database] database - [INFO] INFO - Datenbank-Wartungs-Scheduler gestartet
+2025-06-01 03:31:39 - [database] database - [INFO] INFO - Datenbank-Wartungs-Scheduler gestartet
--- a/backend/logs/database_cleanup/database_cleanup.log
+++ b/backend/logs/database_cleanup/database_cleanup.log
@ -4,3 +4,6 @@
 2025-06-01 03:04:49 - [database_cleanup] database_cleanup - [INFO] INFO - 🧹 Starte umfassendes Datenbank-Cleanup...
 2025-06-01 03:04:49 - [database_cleanup] database_cleanup - [INFO] INFO - 📝 Schritt 1: Schließe alle Datenbankverbindungen...
 2025-06-01 03:04:49 - [database_cleanup] database_cleanup - [INFO] INFO - 🔄 Schließe alle aktiven Datenbankverbindungen...
+2025-06-01 03:30:12 - [database_cleanup] database_cleanup - [INFO] INFO - 🧹 Starte umfassendes Datenbank-Cleanup...
+2025-06-01 03:30:12 - [database_cleanup] database_cleanup - [INFO] INFO - 📝 Schritt 1: Schließe alle Datenbankverbindungen...
+2025-06-01 03:30:12 - [database_cleanup] database_cleanup - [INFO] INFO - 🔄 Schließe alle aktiven Datenbankverbindungen...
--- a/backend/logs/email_notification/email_notification.log
+++ b/backend/logs/email_notification/email_notification.log
@ -1,3 +1,5 @@
 2025-06-01 03:01:14 - [email_notification] email_notification - [INFO] INFO - 📧 Offline-E-Mail-Benachrichtigung initialisiert (kein echter E-Mail-Versand)
 2025-06-01 03:04:48 - [email_notification] email_notification - [INFO] INFO - 📧 Offline-E-Mail-Benachrichtigung initialisiert (kein echter E-Mail-Versand)
 2025-06-01 03:06:07 - [email_notification] email_notification - [INFO] INFO - 📧 Offline-E-Mail-Benachrichtigung initialisiert (kein echter E-Mail-Versand)
+2025-06-01 03:29:15 - [email_notification] email_notification - [INFO] INFO - 📧 Offline-E-Mail-Benachrichtigung initialisiert (kein echter E-Mail-Versand)
+2025-06-01 03:31:40 - [email_notification] email_notification - [INFO] INFO - 📧 Offline-E-Mail-Benachrichtigung initialisiert (kein echter E-Mail-Versand)
--- a/backend/logs/jobs/jobs.log
+++ b/backend/logs/jobs/jobs.log
@ -34,3 +34,4 @@
 2025-06-01 03:06:28 - [jobs] jobs - [INFO] INFO - Jobs abgerufen: 0 von 0 (Seite 1)
 2025-06-01 03:07:42 - [jobs] jobs - [INFO] INFO - Jobs abgerufen: 0 von 0 (Seite 1)
 2025-06-01 03:07:55 - [jobs] jobs - [INFO] INFO - Jobs abgerufen: 0 von 0 (Seite 1)
+2025-06-01 03:29:28 - [jobs] jobs - [INFO] INFO - Jobs abgerufen: 0 von 0 (Seite 1)
--- a/backend/logs/maintenance/maintenance.log
+++ b/backend/logs/maintenance/maintenance.log
@ -4,3 +4,6 @@
 2025-06-01 03:04:48 - [maintenance] maintenance - [INFO] INFO - Wartungs-Scheduler gestartet
 2025-06-01 03:06:07 - [maintenance] maintenance - [INFO] INFO - Wartungs-Scheduler gestartet
 2025-06-01 03:06:07 - [maintenance] maintenance - [INFO] INFO - Wartungs-Scheduler gestartet
+2025-06-01 03:29:16 - [maintenance] maintenance - [INFO] INFO - Wartungs-Scheduler gestartet
+2025-06-01 03:29:16 - [maintenance] maintenance - [INFO] INFO - Wartungs-Scheduler gestartet
+2025-06-01 03:31:40 - [maintenance] maintenance - [INFO] INFO - Wartungs-Scheduler gestartet
--- a/backend/logs/multi_location/multi_location.log
+++ b/backend/logs/multi_location/multi_location.log
@ -4,3 +4,6 @@
 2025-06-01 03:04:48 - [multi_location] multi_location - [INFO] INFO - Standard-Standort erstellt
 2025-06-01 03:06:07 - [multi_location] multi_location - [INFO] INFO - Standard-Standort erstellt
 2025-06-01 03:06:07 - [multi_location] multi_location - [INFO] INFO - Standard-Standort erstellt
+2025-06-01 03:29:16 - [multi_location] multi_location - [INFO] INFO - Standard-Standort erstellt
+2025-06-01 03:29:16 - [multi_location] multi_location - [INFO] INFO - Standard-Standort erstellt
+2025-06-01 03:31:40 - [multi_location] multi_location - [INFO] INFO - Standard-Standort erstellt
--- a/backend/logs/permissions/permissions.log
+++ b/backend/logs/permissions/permissions.log
@ -1,3 +1,4 @@
 2025-06-01 03:01:15 - [permissions] permissions - [INFO] INFO - 🔐 Permission Template Helpers registriert
 2025-06-01 03:04:48 - [permissions] permissions - [INFO] INFO - 🔐 Permission Template Helpers registriert
 2025-06-01 03:06:07 - [permissions] permissions - [INFO] INFO - 🔐 Permission Template Helpers registriert
+2025-06-01 03:29:16 - [permissions] permissions - [INFO] INFO - 🔐 Permission Template Helpers registriert
--- a/backend/logs/printer_monitor/printer_monitor.log
+++ b/backend/logs/printer_monitor/printer_monitor.log
@ -165,3 +165,18 @@
 2025-06-01 03:08:12 - [printer_monitor] printer_monitor - [INFO] INFO - ℹ️ Keine aktiven Drucker gefunden
 2025-06-01 03:08:12 - [printer_monitor] printer_monitor - [INFO] INFO - 🔄 Aktualisiere Live-Druckerstatus...
 2025-06-01 03:08:12 - [printer_monitor] printer_monitor - [INFO] INFO - ℹ️ Keine aktiven Drucker gefunden
+2025-06-01 03:29:14 - [printer_monitor] printer_monitor - [INFO] INFO - 🖨️ Drucker-Monitor initialisiert
+2025-06-01 03:29:14 - [printer_monitor] printer_monitor - [INFO] INFO - 🔍 Automatische Tapo-Erkennung in separatem Thread gestartet
+2025-06-01 03:29:16 - [printer_monitor] printer_monitor - [INFO] INFO - 🚀 Starte Steckdosen-Initialisierung beim Programmstart...
+2025-06-01 03:29:16 - [printer_monitor] printer_monitor - [WARNING] WARNING - ⚠️ Keine aktiven Drucker zur Initialisierung gefunden
+2025-06-01 03:29:16 - [printer_monitor] printer_monitor - [INFO] INFO - 🔍 Starte automatische Tapo-Steckdosenerkennung...
+2025-06-01 03:29:16 - [printer_monitor] printer_monitor - [INFO] INFO - 🔄 Teste 6 Standard-IPs aus der Konfiguration
+2025-06-01 03:29:16 - [printer_monitor] printer_monitor - [INFO] INFO - 🔍 Teste IP 1/6: 192.168.0.103
+2025-06-01 03:29:22 - [printer_monitor] printer_monitor - [INFO] INFO - 🔍 Teste IP 2/6: 192.168.0.104
+2025-06-01 03:29:28 - [printer_monitor] printer_monitor - [INFO] INFO - 🔍 Teste IP 3/6: 192.168.0.100
+2025-06-01 03:29:34 - [printer_monitor] printer_monitor - [INFO] INFO - 🔍 Teste IP 4/6: 192.168.0.101
+2025-06-01 03:29:40 - [printer_monitor] printer_monitor - [INFO] INFO - 🔍 Teste IP 5/6: 192.168.0.102
+2025-06-01 03:29:46 - [printer_monitor] printer_monitor - [INFO] INFO - 🔍 Teste IP 6/6: 192.168.0.105
+2025-06-01 03:29:52 - [printer_monitor] printer_monitor - [INFO] INFO - ✅ Steckdosen-Erkennung abgeschlossen: 0/6 Steckdosen gefunden in 36.0s
+2025-06-01 03:31:39 - [printer_monitor] printer_monitor - [INFO] INFO - 🖨️ Drucker-Monitor initialisiert
+2025-06-01 03:31:39 - [printer_monitor] printer_monitor - [INFO] INFO - 🔍 Automatische Tapo-Erkennung in separatem Thread gestartet
--- a/backend/logs/printers/printers.log
+++ b/backend/logs/printers/printers.log
@ -2994,3 +2994,4 @@
 2025-06-01 03:08:12 - [printers] printers - [INFO] INFO - 🔄 Live-Status-Abfrage von Benutzer Administrator (ID: 1)
 2025-06-01 03:08:12 - [printers] printers - [INFO] INFO - ✅ Live-Status-Abfrage erfolgreich: 0 Drucker
 2025-06-01 03:08:12 - [printers] printers - [INFO] INFO - ✅ API-Live-Drucker-Status-Abfrage 'get_live_printer_status' erfolgreich in 13.12ms
+2025-06-01 03:29:28 - [printers] printers - [INFO] INFO - Schnelles Laden abgeschlossen: 6 Drucker geladen (ohne Status-Check)
--- a/backend/logs/scheduler/scheduler.log
+++ b/backend/logs/scheduler/scheduler.log
@ -2825,3 +2825,9 @@
 2025-06-01 03:06:06 - [scheduler] scheduler - [INFO] INFO - Task check_jobs registriert: Intervall 30s, Enabled: True
 2025-06-01 03:06:07 - [scheduler] scheduler - [INFO] INFO - Scheduler-Thread gestartet
 2025-06-01 03:06:07 - [scheduler] scheduler - [INFO] INFO - Scheduler gestartet
+2025-06-01 03:29:14 - [scheduler] scheduler - [INFO] INFO - Task check_jobs registriert: Intervall 30s, Enabled: True
+2025-06-01 03:29:16 - [scheduler] scheduler - [INFO] INFO - Scheduler-Thread gestartet
+2025-06-01 03:29:16 - [scheduler] scheduler - [INFO] INFO - Scheduler gestartet
+2025-06-01 03:30:12 - [scheduler] scheduler - [INFO] INFO - Scheduler-Thread beendet
+2025-06-01 03:30:12 - [scheduler] scheduler - [INFO] INFO - Scheduler gestoppt
+2025-06-01 03:31:39 - [scheduler] scheduler - [INFO] INFO - Task check_jobs registriert: Intervall 30s, Enabled: True
--- a/backend/logs/security/security.log
+++ b/backend/logs/security/security.log
@ -1,3 +1,4 @@
 2025-06-01 03:01:15 - [security] security - [INFO] INFO - 🔒 Security System initialisiert
 2025-06-01 03:04:48 - [security] security - [INFO] INFO - 🔒 Security System initialisiert
 2025-06-01 03:06:07 - [security] security - [INFO] INFO - 🔒 Security System initialisiert
+2025-06-01 03:29:16 - [security] security - [INFO] INFO - 🔒 Security System initialisiert
--- a/backend/logs/shutdown_manager/shutdown_manager.log
+++ b/backend/logs/shutdown_manager/shutdown_manager.log
@ -12,3 +12,15 @@
 2025-06-01 03:04:49 - [shutdown_manager] shutdown_manager - [INFO] INFO - ✅ Scheduler erfolgreich gestoppt
 2025-06-01 03:04:49 - [shutdown_manager] shutdown_manager - [INFO] INFO - 💾 Führe sicheres Datenbank-Cleanup durch...
 2025-06-01 03:06:07 - [shutdown_manager] shutdown_manager - [INFO] INFO - 🔧 Shutdown-Manager initialisiert
+2025-06-01 03:29:16 - [shutdown_manager] shutdown_manager - [INFO] INFO - 🔧 Shutdown-Manager initialisiert
+2025-06-01 03:30:12 - [shutdown_manager] shutdown_manager - [WARNING] WARNING - 🛑 Signal 2 empfangen - starte koordiniertes Shutdown
+2025-06-01 03:30:12 - [shutdown_manager] shutdown_manager - [INFO] INFO - 🔄 Starte koordiniertes System-Shutdown...
+2025-06-01 03:30:12 - [shutdown_manager] shutdown_manager - [INFO] INFO - 🧹 Führe 4 Cleanup-Funktionen aus...
+2025-06-01 03:30:12 - [shutdown_manager] shutdown_manager - [INFO] INFO - 🔄 Beende Scheduler mit stop()...
+2025-06-01 03:30:12 - [shutdown_manager] shutdown_manager - [INFO] INFO - ✅ Scheduler erfolgreich gestoppt
+2025-06-01 03:30:12 - [shutdown_manager] shutdown_manager - [INFO] INFO - 💾 Führe sicheres Datenbank-Cleanup durch...
+2025-06-01 03:31:40 - [shutdown_manager] shutdown_manager - [INFO] INFO - 🔧 Shutdown-Manager initialisiert
+2025-06-01 03:31:40 - [shutdown_manager] shutdown_manager - [INFO] INFO - 🔄 Starte koordiniertes System-Shutdown...
+2025-06-01 03:31:40 - [shutdown_manager] shutdown_manager - [INFO] INFO - 🧹 Führe 1 Cleanup-Funktionen aus...
+2025-06-01 03:31:40 - [shutdown_manager] shutdown_manager - [INFO] INFO - ✅ Koordiniertes Shutdown abgeschlossen in 0.0s
+2025-06-01 03:31:40 - [shutdown_manager] shutdown_manager - [INFO] INFO - 🏁 System wird beendet...
--- a/backend/logs/startup/startup.log
+++ b/backend/logs/startup/startup.log
@ -25,3 +25,12 @@
 2025-06-01 03:06:07 - [startup] startup - [INFO] INFO - 🪟 Windows-Modus: Aktiviert
 2025-06-01 03:06:07 - [startup] startup - [INFO] INFO - 🔒 Windows-sichere Log-Rotation: Aktiviert
 2025-06-01 03:06:07 - [startup] startup - [INFO] INFO - ==================================================
+2025-06-01 03:29:16 - [startup] startup - [INFO] INFO - ==================================================
+2025-06-01 03:29:16 - [startup] startup - [INFO] INFO - 🚀 MYP Platform Backend wird gestartet...
+2025-06-01 03:29:16 - [startup] startup - [INFO] INFO - 🐍 Python Version: 3.13.3 (tags/v3.13.3:6280bb5, Apr  8 2025, 14:47:33) [MSC v.1943 64 bit (AMD64)]
+2025-06-01 03:29:16 - [startup] startup - [INFO] INFO - 💻 Betriebssystem: nt (win32)
+2025-06-01 03:29:16 - [startup] startup - [INFO] INFO - 📁 Arbeitsverzeichnis: C:\Users\TTOMCZA.EMEA\Dev\Projektarbeit-MYP\backend
+2025-06-01 03:29:16 - [startup] startup - [INFO] INFO - ⏰ Startzeit: 2025-06-01T03:29:16.168851
+2025-06-01 03:29:16 - [startup] startup - [INFO] INFO - 🪟 Windows-Modus: Aktiviert
+2025-06-01 03:29:16 - [startup] startup - [INFO] INFO - 🔒 Windows-sichere Log-Rotation: Aktiviert
+2025-06-01 03:29:16 - [startup] startup - [INFO] INFO - ==================================================
--- a/backend/logs/timeout_force_quit/timeout_force_quit.log
+++ b/backend/logs/timeout_force_quit/timeout_force_quit.log
--- a/backend/logs/timer_manager/timer_manager.log
+++ b/backend/logs/timer_manager/timer_manager.log
--- a/backend/logs/windows_fixes/windows_fixes.log
+++ b/backend/logs/windows_fixes/windows_fixes.log
@ -14,3 +14,13 @@
 2025-06-01 03:06:06 - [windows_fixes] windows_fixes - [INFO] INFO - ✅ Subprocess automatisch gepatcht für UTF-8 Encoding (run + Popen)
 2025-06-01 03:06:06 - [windows_fixes] windows_fixes - [INFO] INFO - ✅ Globaler subprocess-Patch angewendet
 2025-06-01 03:06:06 - [windows_fixes] windows_fixes - [INFO] INFO - ✅ Alle Windows-Fixes erfolgreich angewendet
+2025-06-01 03:29:14 - [windows_fixes] windows_fixes - [INFO] INFO - 🔧 Wende Windows-spezifische Fixes an...
+2025-06-01 03:29:14 - [windows_fixes] windows_fixes - [INFO] INFO - ✅ Subprocess automatisch gepatcht für UTF-8 Encoding (run + Popen)
+2025-06-01 03:29:14 - [windows_fixes] windows_fixes - [INFO] INFO - ✅ Globaler subprocess-Patch angewendet
+2025-06-01 03:29:14 - [windows_fixes] windows_fixes - [INFO] INFO - ✅ Alle Windows-Fixes erfolgreich angewendet
+2025-06-01 03:30:12 - [windows_fixes] windows_fixes - [INFO] INFO - 🔄 Starte Windows Thread-Shutdown...
+2025-06-01 03:30:12 - [windows_fixes] windows_fixes - [INFO] INFO - ✅ Windows Thread-Shutdown abgeschlossen
+2025-06-01 03:31:39 - [windows_fixes] windows_fixes - [INFO] INFO - 🔧 Wende Windows-spezifische Fixes an...
+2025-06-01 03:31:39 - [windows_fixes] windows_fixes - [INFO] INFO - ✅ Subprocess automatisch gepatcht für UTF-8 Encoding (run + Popen)
+2025-06-01 03:31:39 - [windows_fixes] windows_fixes - [INFO] INFO - ✅ Globaler subprocess-Patch angewendet
+2025-06-01 03:31:39 - [windows_fixes] windows_fixes - [INFO] INFO - ✅ Alle Windows-Fixes erfolgreich angewendet
--- a/backend/node_modules/.package-lock.json
+++ b/backend/node_modules/.package-lock.json
@ -16,6 +16,22 @@
        "url": "https://github.com/sponsors/sindresorhus"
      }
    },
+    "node_modules/@esbuild/win32-x64": {
+      "version": "0.25.4",
+      "resolved": "https://registry.npmjs.org/@esbuild/win32-x64/-/win32-x64-0.25.4.tgz",
+      "integrity": "sha512-nOT2vZNw6hJ+z43oP1SPea/G/6AbN6X+bGNhNuq8NtRHy4wsMhw765IKLNmnjek7GvjWBYQ8Q5VBoYTFg9y1UQ==",
+      "cpu": [
+        "x64"
+      ],
+      "license": "MIT",
+      "optional": true,
+      "os": [
+        "win32"
+      ],
+      "engines": {
+        "node": ">=18"
+      }
+    },
    "node_modules/@fortawesome/fontawesome-free": {
      "version": "6.7.2",
      "resolved": "https://registry.npmjs.org/@fortawesome/fontawesome-free/-/fontawesome-free-6.7.2.tgz",
@ -179,6 +195,29 @@
        "node": ">= 8"
      }
    },
+    "node_modules/@pkgjs/parseargs": {
+      "version": "0.11.0",
+      "resolved": "https://registry.npmjs.org/@pkgjs/parseargs/-/parseargs-0.11.0.tgz",
+      "integrity": "sha512-+1VkjdD0QBLPodGrJUeqarH8VAIvQODIbwh9XpP5Syisf7YoQgsJKPNFoqqLQlu+VQ/tVSshMR6loPMn8U+dPg==",
+      "license": "MIT",
+      "optional": true,
+      "engines": {
+        "node": ">=14"
+      }
+    },
+    "node_modules/@rollup/rollup-win32-x64-msvc": {
+      "version": "4.41.1",
+      "resolved": "https://registry.npmjs.org/@rollup/rollup-win32-x64-msvc/-/rollup-win32-x64-msvc-4.41.1.tgz",
+      "integrity": "sha512-Wq2zpapRYLfi4aKxf2Xff0tN+7slj2d4R87WEzqw7ZLsVvO5zwYCIuEGSZYiK41+GlwUo1HiR+GdkLEJnCKTCw==",
+      "cpu": [
+        "x64"
+      ],
+      "license": "MIT",
+      "optional": true,
+      "os": [
+        "win32"
+      ]
+    },
    "node_modules/@tailwindcss/forms": {
      "version": "0.5.10",
      "resolved": "https://registry.npmjs.org/@tailwindcss/forms/-/forms-0.5.10.tgz",
--- a/backend/node_modules/@esbuild/win32-x64/README.md
+++ b/backend/node_modules/@esbuild/win32-x64/README.md
@ -0,0 +1,3 @@
+# esbuild
+
+This is the Windows 64-bit binary for esbuild, a JavaScript bundler and minifier. See https://github.com/evanw/esbuild for details.
--- a/backend/node_modules/@esbuild/win32-x64/esbuild.exe
+++ b/backend/node_modules/@esbuild/win32-x64/esbuild.exe
--- a/backend/node_modules/@esbuild/win32-x64/package.json
+++ b/backend/node_modules/@esbuild/win32-x64/package.json
@ -0,0 +1,20 @@
+{
+  "name": "@esbuild/win32-x64",
+  "version": "0.25.4",
+  "description": "The Windows 64-bit binary for esbuild, a JavaScript bundler.",
+  "repository": {
+    "type": "git",
+    "url": "git+https://github.com/evanw/esbuild.git"
+  },
+  "license": "MIT",
+  "preferUnplugged": true,
+  "engines": {
+    "node": ">=18"
+  },
+  "os": [
+    "win32"
+  ],
+  "cpu": [
+    "x64"
+  ]
+}
--- a/backend/node_modules/@pkgjs/parseargs/.editorconfig
+++ b/backend/node_modules/@pkgjs/parseargs/.editorconfig
@ -0,0 +1,14 @@
+# EditorConfig is awesome: http://EditorConfig.org
+
+# top-most EditorConfig file
+root = true
+
+# Copied from Node.js to ease compatibility in PR.
+[*]
+charset = utf-8
+end_of_line = lf
+indent_size = 2
+indent_style = space
+insert_final_newline = true
+trim_trailing_whitespace = true
+quote_type = single
--- a/backend/node_modules/@pkgjs/parseargs/CHANGELOG.md
+++ b/backend/node_modules/@pkgjs/parseargs/CHANGELOG.md
@ -0,0 +1,147 @@
+# Changelog
+
+## [0.11.0](https://github.com/pkgjs/parseargs/compare/v0.10.0...v0.11.0) (2022-10-08)
+
+
+### Features
+
+* add `default` option parameter ([#142](https://github.com/pkgjs/parseargs/issues/142)) ([cd20847](https://github.com/pkgjs/parseargs/commit/cd20847a00b2f556aa9c085ac83b942c60868ec1))
+
+## [0.10.0](https://github.com/pkgjs/parseargs/compare/v0.9.1...v0.10.0) (2022-07-21)
+
+
+### Features
+
+* add parsed meta-data to returned properties ([#129](https://github.com/pkgjs/parseargs/issues/129)) ([91bfb4d](https://github.com/pkgjs/parseargs/commit/91bfb4d3f7b6937efab1b27c91c45d1205f1497e))
+
+## [0.9.1](https://github.com/pkgjs/parseargs/compare/v0.9.0...v0.9.1) (2022-06-20)
+
+
+### Bug Fixes
+
+* **runtime:** support node 14+ ([#135](https://github.com/pkgjs/parseargs/issues/135)) ([6a1c5a6](https://github.com/pkgjs/parseargs/commit/6a1c5a6f7cadf2f035e004027e2742e3c4ce554b))
+
+## [0.9.0](https://github.com/pkgjs/parseargs/compare/v0.8.0...v0.9.0) (2022-05-23)
+
+
+### ⚠ BREAKING CHANGES
+
+* drop handling of electron arguments (#121)
+
+### Code Refactoring
+
+* drop handling of electron arguments ([#121](https://github.com/pkgjs/parseargs/issues/121)) ([a2ffd53](https://github.com/pkgjs/parseargs/commit/a2ffd537c244a062371522b955acb45a404fc9f2))
+
+## [0.8.0](https://github.com/pkgjs/parseargs/compare/v0.7.1...v0.8.0) (2022-05-16)
+
+
+### ⚠ BREAKING CHANGES
+
+* switch type:string option arguments to greedy, but with error for suspect cases in strict mode (#88)
+* positionals now opt-in when strict:true (#116)
+* create result.values with null prototype (#111)
+
+### Features
+
+* create result.values with null prototype ([#111](https://github.com/pkgjs/parseargs/issues/111)) ([9d539c3](https://github.com/pkgjs/parseargs/commit/9d539c3d57f269c160e74e0656ad4fa84ff92ec2))
+* positionals now opt-in when strict:true ([#116](https://github.com/pkgjs/parseargs/issues/116)) ([3643338](https://github.com/pkgjs/parseargs/commit/364333826b746e8a7dc5505b4b22fd19ac51df3b))
+* switch type:string option arguments to greedy, but with error for suspect cases in strict mode ([#88](https://github.com/pkgjs/parseargs/issues/88)) ([c2b5e72](https://github.com/pkgjs/parseargs/commit/c2b5e72161991dfdc535909f1327cc9b970fe7e8))
+
+### [0.7.1](https://github.com/pkgjs/parseargs/compare/v0.7.0...v0.7.1) (2022-04-15)
+
+
+### Bug Fixes
+
+* resist pollution ([#106](https://github.com/pkgjs/parseargs/issues/106)) ([ecf2dec](https://github.com/pkgjs/parseargs/commit/ecf2dece0a9f2a76d789384d5d71c68ffe64022a))
+
+## [0.7.0](https://github.com/pkgjs/parseargs/compare/v0.6.0...v0.7.0) (2022-04-13)
+
+
+### Features
+
+* Add strict mode to parser ([#74](https://github.com/pkgjs/parseargs/issues/74)) ([8267d02](https://github.com/pkgjs/parseargs/commit/8267d02083a87b8b8a71fcce08348d1e031ea91c))
+
+## [0.6.0](https://github.com/pkgjs/parseargs/compare/v0.5.0...v0.6.0) (2022-04-11)
+
+
+### ⚠ BREAKING CHANGES
+
+* rework results to remove redundant `flags` property and store value true for boolean options (#83)
+* switch to existing ERR_INVALID_ARG_VALUE (#97)
+
+### Code Refactoring
+
+* rework results to remove redundant `flags` property and store value true for boolean options ([#83](https://github.com/pkgjs/parseargs/issues/83)) ([be153db](https://github.com/pkgjs/parseargs/commit/be153dbed1d488cb7b6e27df92f601ba7337713d))
+* switch to existing ERR_INVALID_ARG_VALUE ([#97](https://github.com/pkgjs/parseargs/issues/97)) ([084a23f](https://github.com/pkgjs/parseargs/commit/084a23f9fde2da030b159edb1c2385f24579ce40))
+
+## [0.5.0](https://github.com/pkgjs/parseargs/compare/v0.4.0...v0.5.0) (2022-04-10)
+
+
+### ⚠ BREAKING CHANGES
+
+* Require type to be specified for each supplied option (#95)
+
+### Features
+
+* Require type to be specified for each supplied option ([#95](https://github.com/pkgjs/parseargs/issues/95)) ([02cd018](https://github.com/pkgjs/parseargs/commit/02cd01885b8aaa59f2db8308f2d4479e64340068))
+
+## [0.4.0](https://github.com/pkgjs/parseargs/compare/v0.3.0...v0.4.0) (2022-03-12)
+
+
+### ⚠ BREAKING CHANGES
+
+* parsing, revisit short option groups, add support for combined short and value (#75)
+* restructure configuration to take options bag (#63)
+
+### Code Refactoring
+
+* parsing, revisit short option groups, add support for combined short and value ([#75](https://github.com/pkgjs/parseargs/issues/75)) ([a92600f](https://github.com/pkgjs/parseargs/commit/a92600fa6c214508ab1e016fa55879a314f541af))
+* restructure configuration to take options bag ([#63](https://github.com/pkgjs/parseargs/issues/63)) ([b412095](https://github.com/pkgjs/parseargs/commit/b4120957d90e809ee8b607b06e747d3e6a6b213e))
+
+## [0.3.0](https://github.com/pkgjs/parseargs/compare/v0.2.0...v0.3.0) (2022-02-06)
+
+
+### Features
+
+* **parser:** support short-option groups ([#59](https://github.com/pkgjs/parseargs/issues/59)) ([882067b](https://github.com/pkgjs/parseargs/commit/882067bc2d7cbc6b796f8e5a079a99bc99d4e6ba))
+
+## [0.2.0](https://github.com/pkgjs/parseargs/compare/v0.1.1...v0.2.0) (2022-02-05)
+
+
+### Features
+
+* basic support for shorts ([#50](https://github.com/pkgjs/parseargs/issues/50)) ([a2f36d7](https://github.com/pkgjs/parseargs/commit/a2f36d7da4145af1c92f76806b7fe2baf6beeceb))
+
+
+### Bug Fixes
+
+* always store value for a=b ([#43](https://github.com/pkgjs/parseargs/issues/43)) ([a85e8dc](https://github.com/pkgjs/parseargs/commit/a85e8dc06379fd2696ee195cc625de8fac6aee42))
+* support single dash as positional ([#49](https://github.com/pkgjs/parseargs/issues/49)) ([d795bf8](https://github.com/pkgjs/parseargs/commit/d795bf877d068fd67aec381f30b30b63f97109ad))
+
+### [0.1.1](https://github.com/pkgjs/parseargs/compare/v0.1.0...v0.1.1) (2022-01-25)
+
+
+### Bug Fixes
+
+* only use arrays in results for multiples ([#42](https://github.com/pkgjs/parseargs/issues/42)) ([c357584](https://github.com/pkgjs/parseargs/commit/c357584847912506319ed34a0840080116f4fd65))
+
+## 0.1.0 (2022-01-22)
+
+
+### Features
+
+* expand scenarios covered by default arguments for environments ([#20](https://github.com/pkgjs/parseargs/issues/20)) ([582ada7](https://github.com/pkgjs/parseargs/commit/582ada7be0eca3a73d6e0bd016e7ace43449fa4c))
+* update readme and include contributing guidelines ([8edd6fc](https://github.com/pkgjs/parseargs/commit/8edd6fc863cd705f6fac732724159ebe8065a2b0))
+
+
+### Bug Fixes
+
+* do not strip excess leading dashes on long option names ([#21](https://github.com/pkgjs/parseargs/issues/21)) ([f848590](https://github.com/pkgjs/parseargs/commit/f848590ebf3249ed5979ff47e003fa6e1a8ec5c0))
+* name & readme ([3f057c1](https://github.com/pkgjs/parseargs/commit/3f057c1b158a1bdbe878c64b57460c58e56e465f))
+* package.json values ([9bac300](https://github.com/pkgjs/parseargs/commit/9bac300e00cd76c77076bf9e75e44f8929512da9))
+* update readme name ([957d8d9](https://github.com/pkgjs/parseargs/commit/957d8d96e1dcb48297c0a14345d44c0123b2883e))
+
+
+### Build System
+
+* first release as minor ([421c6e2](https://github.com/pkgjs/parseargs/commit/421c6e2569a8668ad14fac5a5af5be60479a7571))
--- a/backend/node_modules/@pkgjs/parseargs/LICENSE
+++ b/backend/node_modules/@pkgjs/parseargs/LICENSE
@ -0,0 +1,201 @@
+                                 Apache License
+                           Version 2.0, January 2004
+                        http://www.apache.org/licenses/
+
+   TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
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+   1. Definitions.
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--- a/backend/node_modules/@pkgjs/parseargs/README.md
+++ b/backend/node_modules/@pkgjs/parseargs/README.md
@ -0,0 +1,413 @@
+<!-- omit in toc -->
+# parseArgs
+
+[![Coverage][coverage-image]][coverage-url]
+
+Polyfill of `util.parseArgs()`
+
+## `util.parseArgs([config])`
+
+<!-- YAML
+added: v18.3.0
+changes:
+  - version: REPLACEME
+    pr-url: https://github.com/nodejs/node/pull/43459
+    description: add support for returning detailed parse information
+                 using `tokens` in input `config` and returned properties.
+-->
+
+> Stability: 1 - Experimental
+
+* `config` {Object} Used to provide arguments for parsing and to configure
+  the parser. `config` supports the following properties:
+  * `args` {string\[]} array of argument strings. **Default:** `process.argv`
+    with `execPath` and `filename` removed.
+  * `options` {Object} Used to describe arguments known to the parser.
+    Keys of `options` are the long names of options and values are an
+    {Object} accepting the following properties:
+    * `type` {string} Type of argument, which must be either `boolean` or `string`.
+    * `multiple` {boolean} Whether this option can be provided multiple
+      times. If `true`, all values will be collected in an array. If
+      `false`, values for the option are last-wins. **Default:** `false`.
+    * `short` {string} A single character alias for the option.
+    * `default` {string | boolean | string\[] | boolean\[]} The default option
+      value when it is not set by args. It must be of the same type as the
+      the `type` property. When `multiple` is `true`, it must be an array.
+  * `strict` {boolean} Should an error be thrown when unknown arguments
+    are encountered, or when arguments are passed that do not match the
+    `type` configured in `options`.
+    **Default:** `true`.
+  * `allowPositionals` {boolean} Whether this command accepts positional
+    arguments.
+    **Default:** `false` if `strict` is `true`, otherwise `true`.
+  * `tokens` {boolean} Return the parsed tokens. This is useful for extending
+    the built-in behavior, from adding additional checks through to reprocessing
+    the tokens in different ways.
+    **Default:** `false`.
+
+* Returns: {Object} The parsed command line arguments:
+  * `values` {Object} A mapping of parsed option names with their {string}
+    or {boolean} values.
+  * `positionals` {string\[]} Positional arguments.
+  * `tokens` {Object\[] | undefined} See [parseArgs tokens](#parseargs-tokens)
+    section. Only returned if `config` includes `tokens: true`.
+
+Provides a higher level API for command-line argument parsing than interacting
+with `process.argv` directly. Takes a specification for the expected arguments
+and returns a structured object with the parsed options and positionals.
+
+```mjs
+import { parseArgs } from 'node:util';
+const args = ['-f', '--bar', 'b'];
+const options = {
+  foo: {
+    type: 'boolean',
+    short: 'f'
+  },
+  bar: {
+    type: 'string'
+  }
+};
+const {
+  values,
+  positionals
+} = parseArgs({ args, options });
+console.log(values, positionals);
+// Prints: [Object: null prototype] { foo: true, bar: 'b' } []
+```
+
+```cjs
+const { parseArgs } = require('node:util');
+const args = ['-f', '--bar', 'b'];
+const options = {
+  foo: {
+    type: 'boolean',
+    short: 'f'
+  },
+  bar: {
+    type: 'string'
+  }
+};
+const {
+  values,
+  positionals
+} = parseArgs({ args, options });
+console.log(values, positionals);
+// Prints: [Object: null prototype] { foo: true, bar: 'b' } []
+```
+
+`util.parseArgs` is experimental and behavior may change. Join the
+conversation in [pkgjs/parseargs][] to contribute to the design.
+
+### `parseArgs` `tokens`
+
+Detailed parse information is available for adding custom behaviours by
+specifying `tokens: true` in the configuration.
+The returned tokens have properties describing:
+
+* all tokens
+  * `kind` {string} One of 'option', 'positional', or 'option-terminator'.
+  * `index` {number} Index of element in `args` containing token. So the
+    source argument for a token is `args[token.index]`.
+* option tokens
+  * `name` {string} Long name of option.
+  * `rawName` {string} How option used in args, like `-f` of `--foo`.
+  * `value` {string | undefined} Option value specified in args.
+    Undefined for boolean options.
+  * `inlineValue` {boolean | undefined} Whether option value specified inline,
+    like `--foo=bar`.
+* positional tokens
+  * `value` {string} The value of the positional argument in args (i.e. `args[index]`).
+* option-terminator token
+
+The returned tokens are in the order encountered in the input args. Options
+that appear more than once in args produce a token for each use. Short option
+groups like `-xy` expand to a token for each option. So `-xxx` produces
+three tokens.
+
+For example to use the returned tokens to add support for a negated option
+like `--no-color`, the tokens can be reprocessed to change the value stored
+for the negated option.
+
+```mjs
+import { parseArgs } from 'node:util';
+
+const options = {
+  'color': { type: 'boolean' },
+  'no-color': { type: 'boolean' },
+  'logfile': { type: 'string' },
+  'no-logfile': { type: 'boolean' },
+};
+const { values, tokens } = parseArgs({ options, tokens: true });
+
+// Reprocess the option tokens and overwrite the returned values.
+tokens
+  .filter((token) => token.kind === 'option')
+  .forEach((token) => {
+    if (token.name.startsWith('no-')) {
+      // Store foo:false for --no-foo
+      const positiveName = token.name.slice(3);
+      values[positiveName] = false;
+      delete values[token.name];
+    } else {
+      // Resave value so last one wins if both --foo and --no-foo.
+      values[token.name] = token.value ?? true;
+    }
+  });
+
+const color = values.color;
+const logfile = values.logfile ?? 'default.log';
+
+console.log({ logfile, color });
+```
+
+```cjs
+const { parseArgs } = require('node:util');
+
+const options = {
+  'color': { type: 'boolean' },
+  'no-color': { type: 'boolean' },
+  'logfile': { type: 'string' },
+  'no-logfile': { type: 'boolean' },
+};
+const { values, tokens } = parseArgs({ options, tokens: true });
+
+// Reprocess the option tokens and overwrite the returned values.
+tokens
+  .filter((token) => token.kind === 'option')
+  .forEach((token) => {
+    if (token.name.startsWith('no-')) {
+      // Store foo:false for --no-foo
+      const positiveName = token.name.slice(3);
+      values[positiveName] = false;
+      delete values[token.name];
+    } else {
+      // Resave value so last one wins if both --foo and --no-foo.
+      values[token.name] = token.value ?? true;
+    }
+  });
+
+const color = values.color;
+const logfile = values.logfile ?? 'default.log';
+
+console.log({ logfile, color });
+```
+
+Example usage showing negated options, and when an option is used
+multiple ways then last one wins.
+
+```console
+$ node negate.js
+{ logfile: 'default.log', color: undefined }
+$ node negate.js --no-logfile --no-color
+{ logfile: false, color: false }
+$ node negate.js --logfile=test.log --color
+{ logfile: 'test.log', color: true }
+$ node negate.js --no-logfile --logfile=test.log --color --no-color
+{ logfile: 'test.log', color: false }
+```
+
+-----
+
+<!-- omit in toc -->
+## Table of Contents
+- [`util.parseArgs([config])`](#utilparseargsconfig)
+- [Scope](#scope)
+- [Version Matchups](#version-matchups)
+- [🚀 Getting Started](#-getting-started)
+- [🙌 Contributing](#-contributing)
+- [💡 `process.mainArgs` Proposal](#-processmainargs-proposal)
+  - [Implementation:](#implementation)
+- [📃 Examples](#-examples)
+- [F.A.Qs](#faqs)
+- [Links & Resources](#links--resources)
+
+-----
+
+## Scope
+
+It is already possible to build great arg parsing modules on top of what Node.js provides; the prickly API is abstracted away by these modules. Thus, process.parseArgs() is not necessarily intended for library authors; it is intended for developers of simple CLI tools, ad-hoc scripts, deployed Node.js applications, and learning materials.
+
+It is exceedingly difficult to provide an API which would both be friendly to these Node.js users while being extensible enough for libraries to build upon. We chose to prioritize these use cases because these are currently not well-served by Node.js' API.
+
+----
+
+## Version Matchups
+
+| Node.js | @pkgjs/parseArgs |
+| -- | -- |
+| [v18.3.0](https://nodejs.org/docs/latest-v18.x/api/util.html#utilparseargsconfig) | [v0.9.1](https://github.com/pkgjs/parseargs/tree/v0.9.1#utilparseargsconfig) |
+| [v16.17.0](https://nodejs.org/dist/latest-v16.x/docs/api/util.html#utilparseargsconfig), [v18.7.0](https://nodejs.org/docs/latest-v18.x/api/util.html#utilparseargsconfig) | [0.10.0](https://github.com/pkgjs/parseargs/tree/v0.10.0#utilparseargsconfig) |
+
+----
+
+## 🚀 Getting Started
+
+1. **Install dependencies.**
+
+   ```bash
+   npm install
+   ```
+
+2. **Open the index.js file and start editing!**
+
+3. **Test your code by calling parseArgs through our test file**
+
+   ```bash
+   npm test
+   ```
+
+----
+
+## 🙌 Contributing
+
+Any person who wants to contribute to the initiative is welcome! Please first read the [Contributing Guide](CONTRIBUTING.md)
+
+Additionally, reading the [`Examples w/ Output`](#-examples-w-output) section of this document will be the best way to familiarize yourself with the target expected behavior for parseArgs() once it is fully implemented.
+
+This package was implemented using [tape](https://www.npmjs.com/package/tape) as its test harness.
+
+----
+
+## 💡 `process.mainArgs` Proposal
+
+> Note: This can be moved forward independently of the `util.parseArgs()` proposal/work.
+
+### Implementation:
+
+```javascript
+process.mainArgs = process.argv.slice(process._exec ? 1 : 2)
+```
+
+----
+
+## 📃 Examples
+
+```js
+const { parseArgs } = require('@pkgjs/parseargs');
+```
+
+```js
+const { parseArgs } = require('@pkgjs/parseargs');
+// specify the options that may be used
+const options = {
+  foo: { type: 'string'},
+  bar: { type: 'boolean' },
+};
+const args = ['--foo=a', '--bar'];
+const { values, positionals } = parseArgs({ args, options });
+// values = { foo: 'a', bar: true }
+// positionals = []
+```
+
+```js
+const { parseArgs } = require('@pkgjs/parseargs');
+// type:string & multiple
+const options = {
+  foo: {
+    type: 'string',
+    multiple: true,
+  },
+};
+const args = ['--foo=a', '--foo', 'b'];
+const { values, positionals } = parseArgs({ args, options });
+// values = { foo: [ 'a', 'b' ] }
+// positionals = []
+```
+
+```js
+const { parseArgs } = require('@pkgjs/parseargs');
+// shorts
+const options = {
+  foo: {
+    short: 'f',
+    type: 'boolean'
+  },
+};
+const args = ['-f', 'b'];
+const { values, positionals } = parseArgs({ args, options, allowPositionals: true });
+// values = { foo: true }
+// positionals = ['b']
+```
+
+```js
+const { parseArgs } = require('@pkgjs/parseargs');
+// unconfigured
+const options = {};
+const args = ['-f', '--foo=a', '--bar', 'b'];
+const { values, positionals } = parseArgs({ strict: false, args, options, allowPositionals: true });
+// values = { f: true, foo: 'a', bar: true }
+// positionals = ['b']
+```
+
+----
+
+## F.A.Qs
+
+- Is `cmd --foo=bar baz` the same as `cmd baz --foo=bar`?
+  - yes
+- Does the parser execute a function?
+  - no
+- Does the parser execute one of several functions, depending on input?
+  - no
+- Can subcommands take options that are distinct from the main command?
+  - no
+- Does it output generated help when no options match?
+  - no
+- Does it generated short usage?  Like: `usage: ls [-ABCFGHLOPRSTUWabcdefghiklmnopqrstuwx1] [file ...]`
+  - no (no usage/help at all)
+- Does the user provide the long usage text?  For each option?  For the whole command?
+  - no
+- Do subcommands (if implemented) have their own usage output?
+  - no
+- Does usage print if the user runs `cmd --help`?
+  - no
+- Does it set `process.exitCode`?
+  - no
+- Does usage print to stderr or stdout?
+  - N/A
+- Does it check types?  (Say, specify that an option is a boolean, number, etc.)
+  - no
+- Can an option have more than one type?  (string or false, for example)
+  - no
+- Can the user define a type?  (Say, `type: path` to call `path.resolve()` on the argument.)
+  - no
+- Does a `--foo=0o22` mean 0, 22, 18, or "0o22"?
+  - `"0o22"`
+- Does it coerce types?
+  - no
+- Does `--no-foo` coerce to `--foo=false`?  For all options?  Only boolean options?
+  - no, it sets `{values:{'no-foo': true}}`
+- Is `--foo` the same as `--foo=true`?  Only for known booleans?  Only at the end?
+  - no, they are not the same. There is no special handling of `true` as a value so it is just another string.
+- Does it read environment variables?  Ie, is `FOO=1 cmd` the same as `cmd --foo=1`?
+  - no
+- Do unknown arguments raise an error?  Are they parsed?  Are they treated as positional arguments?
+  - no, they are parsed, not treated as positionals
+- Does `--` signal the end of options?
+  - yes
+- Is `--` included as a positional?
+  - no
+- Is `program -- foo` the same as `program foo`?
+  - yes, both store `{positionals:['foo']}`
+- Does the API specify whether a `--` was present/relevant?
+  - no
+- Is `-bar` the same as `--bar`?
+  - no, `-bar` is a short option or options, with expansion logic that follows the
+    [Utility Syntax Guidelines in POSIX.1-2017](https://pubs.opengroup.org/onlinepubs/9699919799/basedefs/V1_chap12.html). `-bar` expands to `-b`, `-a`, `-r`.
+- Is `---foo` the same as `--foo`?
+  - no
+  - the first is a long option named `'-foo'`
+  - the second is a long option named `'foo'`
+- Is `-` a positional? ie, `bash some-test.sh | tap -`
+  - yes
+
+## Links & Resources
+
+* [Initial Tooling Issue](https://github.com/nodejs/tooling/issues/19)
+* [Initial Proposal](https://github.com/nodejs/node/pull/35015)
+* [parseArgs Proposal](https://github.com/nodejs/node/pull/42675)
+
+[coverage-image]: https://img.shields.io/nycrc/pkgjs/parseargs
+[coverage-url]: https://github.com/pkgjs/parseargs/blob/main/.nycrc
+[pkgjs/parseargs]: https://github.com/pkgjs/parseargs
--- a/backend/node_modules/@pkgjs/parseargs/examples/is-default-value.js
+++ b/backend/node_modules/@pkgjs/parseargs/examples/is-default-value.js
@ -0,0 +1,25 @@
+'use strict';
+
+// This example shows how to understand if a default value is used or not.
+
+// 1. const { parseArgs } = require('node:util'); // from node
+// 2. const { parseArgs } = require('@pkgjs/parseargs'); // from package
+const { parseArgs } = require('..'); // in repo
+
+const options = {
+  file: { short: 'f', type: 'string', default: 'FOO' },
+};
+
+const { values, tokens } = parseArgs({ options, tokens: true });
+
+const isFileDefault = !tokens.some((token) => token.kind === 'option' &&
+ token.name === 'file'
+);
+
+console.log(values);
+console.log(`Is the file option [${values.file}] the default value? ${isFileDefault}`);
+
+// Try the following:
+//    node is-default-value.js
+//    node is-default-value.js -f FILE
+//    node is-default-value.js --file FILE
--- a/backend/node_modules/@pkgjs/parseargs/examples/limit-long-syntax.js
+++ b/backend/node_modules/@pkgjs/parseargs/examples/limit-long-syntax.js
@ -0,0 +1,35 @@
+'use strict';
+
+// This is an example of using tokens to add a custom behaviour.
+//
+// Require the use of `=` for long options and values by blocking
+// the use of space separated values.
+// So allow `--foo=bar`, and not allow `--foo bar`.
+//
+// Note: this is not a common behaviour, most CLIs allow both forms.
+
+// 1. const { parseArgs } = require('node:util'); // from node
+// 2. const { parseArgs } = require('@pkgjs/parseargs'); // from package
+const { parseArgs } = require('..'); // in repo
+
+const options = {
+  file: { short: 'f', type: 'string' },
+  log: { type: 'string' },
+};
+
+const { values, tokens } = parseArgs({ options, tokens: true });
+
+const badToken = tokens.find((token) => token.kind === 'option' &&
+  token.value != null &&
+  token.rawName.startsWith('--') &&
+  !token.inlineValue
+);
+if (badToken) {
+  throw new Error(`Option value for '${badToken.rawName}' must be inline, like '${badToken.rawName}=VALUE'`);
+}
+
+console.log(values);
+
+// Try the following:
+//    node limit-long-syntax.js -f FILE --log=LOG
+//    node limit-long-syntax.js --file FILE
--- a/backend/node_modules/@pkgjs/parseargs/examples/negate.js
+++ b/backend/node_modules/@pkgjs/parseargs/examples/negate.js
@ -0,0 +1,43 @@
+'use strict';
+
+// This example is used in the documentation.
+
+// How might I add my own support for --no-foo?
+
+// 1. const { parseArgs } = require('node:util'); // from node
+// 2. const { parseArgs } = require('@pkgjs/parseargs'); // from package
+const { parseArgs } = require('..'); // in repo
+
+const options = {
+  'color': { type: 'boolean' },
+  'no-color': { type: 'boolean' },
+  'logfile': { type: 'string' },
+  'no-logfile': { type: 'boolean' },
+};
+const { values, tokens } = parseArgs({ options, tokens: true });
+
+// Reprocess the option tokens and overwrite the returned values.
+tokens
+  .filter((token) => token.kind === 'option')
+  .forEach((token) => {
+    if (token.name.startsWith('no-')) {
+      // Store foo:false for --no-foo
+      const positiveName = token.name.slice(3);
+      values[positiveName] = false;
+      delete values[token.name];
+    } else {
+      // Resave value so last one wins if both --foo and --no-foo.
+      values[token.name] = token.value ?? true;
+    }
+  });
+
+const color = values.color;
+const logfile = values.logfile ?? 'default.log';
+
+console.log({ logfile, color });
+
+// Try the following:
+//    node negate.js
+//    node negate.js --no-logfile --no-color
+//    negate.js --logfile=test.log --color
+//    node negate.js --no-logfile --logfile=test.log --color --no-color
--- a/backend/node_modules/@pkgjs/parseargs/examples/no-repeated-options.js
+++ b/backend/node_modules/@pkgjs/parseargs/examples/no-repeated-options.js
@ -0,0 +1,31 @@
+'use strict';
+
+// This is an example of using tokens to add a custom behaviour.
+//
+// Throw an error if an option is used more than once.
+
+// 1. const { parseArgs } = require('node:util'); // from node
+// 2. const { parseArgs } = require('@pkgjs/parseargs'); // from package
+const { parseArgs } = require('..'); // in repo
+
+const options = {
+  ding: { type: 'boolean', short: 'd' },
+  beep: { type: 'boolean', short: 'b' }
+};
+const { values, tokens } = parseArgs({ options, tokens: true });
+
+const seenBefore = new Set();
+tokens.forEach((token) => {
+  if (token.kind !== 'option') return;
+  if (seenBefore.has(token.name)) {
+    throw new Error(`option '${token.name}' used multiple times`);
+  }
+  seenBefore.add(token.name);
+});
+
+console.log(values);
+
+// Try the following:
+//    node no-repeated-options --ding --beep
+//    node no-repeated-options --beep -b
+//    node no-repeated-options -ddd
--- a/backend/node_modules/@pkgjs/parseargs/examples/ordered-options.mjs
+++ b/backend/node_modules/@pkgjs/parseargs/examples/ordered-options.mjs
@ -0,0 +1,41 @@
+// This is an example of using tokens to add a custom behaviour.
+//
+// This adds a option order check so that --some-unstable-option
+// may only be used after --enable-experimental-options
+//
+// Note: this is not a common behaviour, the order of different options
+// does not usually matter.
+
+import { parseArgs } from '../index.js';
+
+function findTokenIndex(tokens, target) {
+  return tokens.findIndex((token) => token.kind === 'option' &&
+    token.name === target
+  );
+}
+
+const experimentalName = 'enable-experimental-options';
+const unstableName = 'some-unstable-option';
+
+const options = {
+  [experimentalName]: { type: 'boolean' },
+  [unstableName]: { type: 'boolean' },
+};
+
+const { values, tokens } = parseArgs({ options, tokens: true });
+
+const experimentalIndex = findTokenIndex(tokens, experimentalName);
+const unstableIndex = findTokenIndex(tokens, unstableName);
+if (unstableIndex !== -1 &&
+  ((experimentalIndex === -1) || (unstableIndex < experimentalIndex))) {
+  throw new Error(`'--${experimentalName}' must be specified before '--${unstableName}'`);
+}
+
+console.log(values);
+
+/* eslint-disable max-len */
+// Try the following:
+//    node ordered-options.mjs
+//    node ordered-options.mjs --some-unstable-option
+//    node ordered-options.mjs --some-unstable-option --enable-experimental-options
+//    node ordered-options.mjs --enable-experimental-options --some-unstable-option
--- a/backend/node_modules/@pkgjs/parseargs/examples/simple-hard-coded.js
+++ b/backend/node_modules/@pkgjs/parseargs/examples/simple-hard-coded.js
@ -0,0 +1,26 @@
+'use strict';
+
+// This example is used in the documentation.
+
+// 1. const { parseArgs } = require('node:util'); // from node
+// 2. const { parseArgs } = require('@pkgjs/parseargs'); // from package
+const { parseArgs } = require('..'); // in repo
+
+const args = ['-f', '--bar', 'b'];
+const options = {
+  foo: {
+    type: 'boolean',
+    short: 'f'
+  },
+  bar: {
+    type: 'string'
+  }
+};
+const {
+  values,
+  positionals
+} = parseArgs({ args, options });
+console.log(values, positionals);
+
+// Try the following:
+//    node simple-hard-coded.js
--- a/backend/node_modules/@pkgjs/parseargs/index.js
+++ b/backend/node_modules/@pkgjs/parseargs/index.js
@ -0,0 +1,396 @@
+'use strict';
+
+const {
+  ArrayPrototypeForEach,
+  ArrayPrototypeIncludes,
+  ArrayPrototypeMap,
+  ArrayPrototypePush,
+  ArrayPrototypePushApply,
+  ArrayPrototypeShift,
+  ArrayPrototypeSlice,
+  ArrayPrototypeUnshiftApply,
+  ObjectEntries,
+  ObjectPrototypeHasOwnProperty: ObjectHasOwn,
+  StringPrototypeCharAt,
+  StringPrototypeIndexOf,
+  StringPrototypeSlice,
+  StringPrototypeStartsWith,
+} = require('./internal/primordials');
+
+const {
+  validateArray,
+  validateBoolean,
+  validateBooleanArray,
+  validateObject,
+  validateString,
+  validateStringArray,
+  validateUnion,
+} = require('./internal/validators');
+
+const {
+  kEmptyObject,
+} = require('./internal/util');
+
+const {
+  findLongOptionForShort,
+  isLoneLongOption,
+  isLoneShortOption,
+  isLongOptionAndValue,
+  isOptionValue,
+  isOptionLikeValue,
+  isShortOptionAndValue,
+  isShortOptionGroup,
+  useDefaultValueOption,
+  objectGetOwn,
+  optionsGetOwn,
+} = require('./utils');
+
+const {
+  codes: {
+    ERR_INVALID_ARG_VALUE,
+    ERR_PARSE_ARGS_INVALID_OPTION_VALUE,
+    ERR_PARSE_ARGS_UNKNOWN_OPTION,
+    ERR_PARSE_ARGS_UNEXPECTED_POSITIONAL,
+  },
+} = require('./internal/errors');
+
+function getMainArgs() {
+  // Work out where to slice process.argv for user supplied arguments.
+
+  // Check node options for scenarios where user CLI args follow executable.
+  const execArgv = process.execArgv;
+  if (ArrayPrototypeIncludes(execArgv, '-e') ||
+      ArrayPrototypeIncludes(execArgv, '--eval') ||
+      ArrayPrototypeIncludes(execArgv, '-p') ||
+      ArrayPrototypeIncludes(execArgv, '--print')) {
+    return ArrayPrototypeSlice(process.argv, 1);
+  }
+
+  // Normally first two arguments are executable and script, then CLI arguments
+  return ArrayPrototypeSlice(process.argv, 2);
+}
+
+/**
+ * In strict mode, throw for possible usage errors like --foo --bar
+ *
+ * @param {object} token - from tokens as available from parseArgs
+ */
+function checkOptionLikeValue(token) {
+  if (!token.inlineValue && isOptionLikeValue(token.value)) {
+    // Only show short example if user used short option.
+    const example = StringPrototypeStartsWith(token.rawName, '--') ?
+      `'${token.rawName}=-XYZ'` :
+      `'--${token.name}=-XYZ' or '${token.rawName}-XYZ'`;
+    const errorMessage = `Option '${token.rawName}' argument is ambiguous.
+Did you forget to specify the option argument for '${token.rawName}'?
+To specify an option argument starting with a dash use ${example}.`;
+    throw new ERR_PARSE_ARGS_INVALID_OPTION_VALUE(errorMessage);
+  }
+}
+
+/**
+ * In strict mode, throw for usage errors.
+ *
+ * @param {object} config - from config passed to parseArgs
+ * @param {object} token - from tokens as available from parseArgs
+ */
+function checkOptionUsage(config, token) {
+  if (!ObjectHasOwn(config.options, token.name)) {
+    throw new ERR_PARSE_ARGS_UNKNOWN_OPTION(
+      token.rawName, config.allowPositionals);
+  }
+
+  const short = optionsGetOwn(config.options, token.name, 'short');
+  const shortAndLong = `${short ? `-${short}, ` : ''}--${token.name}`;
+  const type = optionsGetOwn(config.options, token.name, 'type');
+  if (type === 'string' && typeof token.value !== 'string') {
+    throw new ERR_PARSE_ARGS_INVALID_OPTION_VALUE(`Option '${shortAndLong} <value>' argument missing`);
+  }
+  // (Idiomatic test for undefined||null, expecting undefined.)
+  if (type === 'boolean' && token.value != null) {
+    throw new ERR_PARSE_ARGS_INVALID_OPTION_VALUE(`Option '${shortAndLong}' does not take an argument`);
+  }
+}
+
+
+/**
+ * Store the option value in `values`.
+ *
+ * @param {string} longOption - long option name e.g. 'foo'
+ * @param {string|undefined} optionValue - value from user args
+ * @param {object} options - option configs, from parseArgs({ options })
+ * @param {object} values - option values returned in `values` by parseArgs
+ */
+function storeOption(longOption, optionValue, options, values) {
+  if (longOption === '__proto__') {
+    return; // No. Just no.
+  }
+
+  // We store based on the option value rather than option type,
+  // preserving the users intent for author to deal with.
+  const newValue = optionValue ?? true;
+  if (optionsGetOwn(options, longOption, 'multiple')) {
+    // Always store value in array, including for boolean.
+    // values[longOption] starts out not present,
+    // first value is added as new array [newValue],
+    // subsequent values are pushed to existing array.
+    // (note: values has null prototype, so simpler usage)
+    if (values[longOption]) {
+      ArrayPrototypePush(values[longOption], newValue);
+    } else {
+      values[longOption] = [newValue];
+    }
+  } else {
+    values[longOption] = newValue;
+  }
+}
+
+/**
+ * Store the default option value in `values`.
+ *
+ * @param {string} longOption - long option name e.g. 'foo'
+ * @param {string
+ *         | boolean
+ *         | string[]
+ *         | boolean[]} optionValue - default value from option config
+ * @param {object} values - option values returned in `values` by parseArgs
+ */
+function storeDefaultOption(longOption, optionValue, values) {
+  if (longOption === '__proto__') {
+    return; // No. Just no.
+  }
+
+  values[longOption] = optionValue;
+}
+
+/**
+ * Process args and turn into identified tokens:
+ * - option (along with value, if any)
+ * - positional
+ * - option-terminator
+ *
+ * @param {string[]} args - from parseArgs({ args }) or mainArgs
+ * @param {object} options - option configs, from parseArgs({ options })
+ */
+function argsToTokens(args, options) {
+  const tokens = [];
+  let index = -1;
+  let groupCount = 0;
+
+  const remainingArgs = ArrayPrototypeSlice(args);
+  while (remainingArgs.length > 0) {
+    const arg = ArrayPrototypeShift(remainingArgs);
+    const nextArg = remainingArgs[0];
+    if (groupCount > 0)
+      groupCount--;
+    else
+      index++;
+
+    // Check if `arg` is an options terminator.
+    // Guideline 10 in https://pubs.opengroup.org/onlinepubs/9699919799/basedefs/V1_chap12.html
+    if (arg === '--') {
+      // Everything after a bare '--' is considered a positional argument.
+      ArrayPrototypePush(tokens, { kind: 'option-terminator', index });
+      ArrayPrototypePushApply(
+        tokens, ArrayPrototypeMap(remainingArgs, (arg) => {
+          return { kind: 'positional', index: ++index, value: arg };
+        })
+      );
+      break; // Finished processing args, leave while loop.
+    }
+
+    if (isLoneShortOption(arg)) {
+      // e.g. '-f'
+      const shortOption = StringPrototypeCharAt(arg, 1);
+      const longOption = findLongOptionForShort(shortOption, options);
+      let value;
+      let inlineValue;
+      if (optionsGetOwn(options, longOption, 'type') === 'string' &&
+          isOptionValue(nextArg)) {
+        // e.g. '-f', 'bar'
+        value = ArrayPrototypeShift(remainingArgs);
+        inlineValue = false;
+      }
+      ArrayPrototypePush(
+        tokens,
+        { kind: 'option', name: longOption, rawName: arg,
+          index, value, inlineValue });
+      if (value != null) ++index;
+      continue;
+    }
+
+    if (isShortOptionGroup(arg, options)) {
+      // Expand -fXzy to -f -X -z -y
+      const expanded = [];
+      for (let index = 1; index < arg.length; index++) {
+        const shortOption = StringPrototypeCharAt(arg, index);
+        const longOption = findLongOptionForShort(shortOption, options);
+        if (optionsGetOwn(options, longOption, 'type') !== 'string' ||
+          index === arg.length - 1) {
+          // Boolean option, or last short in group. Well formed.
+          ArrayPrototypePush(expanded, `-${shortOption}`);
+        } else {
+          // String option in middle. Yuck.
+          // Expand -abfFILE to -a -b -fFILE
+          ArrayPrototypePush(expanded, `-${StringPrototypeSlice(arg, index)}`);
+          break; // finished short group
+        }
+      }
+      ArrayPrototypeUnshiftApply(remainingArgs, expanded);
+      groupCount = expanded.length;
+      continue;
+    }
+
+    if (isShortOptionAndValue(arg, options)) {
+      // e.g. -fFILE
+      const shortOption = StringPrototypeCharAt(arg, 1);
+      const longOption = findLongOptionForShort(shortOption, options);
+      const value = StringPrototypeSlice(arg, 2);
+      ArrayPrototypePush(
+        tokens,
+        { kind: 'option', name: longOption, rawName: `-${shortOption}`,
+          index, value, inlineValue: true });
+      continue;
+    }
+
+    if (isLoneLongOption(arg)) {
+      // e.g. '--foo'
+      const longOption = StringPrototypeSlice(arg, 2);
+      let value;
+      let inlineValue;
+      if (optionsGetOwn(options, longOption, 'type') === 'string' &&
+          isOptionValue(nextArg)) {
+        // e.g. '--foo', 'bar'
+        value = ArrayPrototypeShift(remainingArgs);
+        inlineValue = false;
+      }
+      ArrayPrototypePush(
+        tokens,
+        { kind: 'option', name: longOption, rawName: arg,
+          index, value, inlineValue });
+      if (value != null) ++index;
+      continue;
+    }
+
+    if (isLongOptionAndValue(arg)) {
+      // e.g. --foo=bar
+      const equalIndex = StringPrototypeIndexOf(arg, '=');
+      const longOption = StringPrototypeSlice(arg, 2, equalIndex);
+      const value = StringPrototypeSlice(arg, equalIndex + 1);
+      ArrayPrototypePush(
+        tokens,
+        { kind: 'option', name: longOption, rawName: `--${longOption}`,
+          index, value, inlineValue: true });
+      continue;
+    }
+
+    ArrayPrototypePush(tokens, { kind: 'positional', index, value: arg });
+  }
+
+  return tokens;
+}
+
+const parseArgs = (config = kEmptyObject) => {
+  const args = objectGetOwn(config, 'args') ?? getMainArgs();
+  const strict = objectGetOwn(config, 'strict') ?? true;
+  const allowPositionals = objectGetOwn(config, 'allowPositionals') ?? !strict;
+  const returnTokens = objectGetOwn(config, 'tokens') ?? false;
+  const options = objectGetOwn(config, 'options') ?? { __proto__: null };
+  // Bundle these up for passing to strict-mode checks.
+  const parseConfig = { args, strict, options, allowPositionals };
+
+  // Validate input configuration.
+  validateArray(args, 'args');
+  validateBoolean(strict, 'strict');
+  validateBoolean(allowPositionals, 'allowPositionals');
+  validateBoolean(returnTokens, 'tokens');
+  validateObject(options, 'options');
+  ArrayPrototypeForEach(
+    ObjectEntries(options),
+    ({ 0: longOption, 1: optionConfig }) => {
+      validateObject(optionConfig, `options.${longOption}`);
+
+      // type is required
+      const optionType = objectGetOwn(optionConfig, 'type');
+      validateUnion(optionType, `options.${longOption}.type`, ['string', 'boolean']);
+
+      if (ObjectHasOwn(optionConfig, 'short')) {
+        const shortOption = optionConfig.short;
+        validateString(shortOption, `options.${longOption}.short`);
+        if (shortOption.length !== 1) {
+          throw new ERR_INVALID_ARG_VALUE(
+            `options.${longOption}.short`,
+            shortOption,
+            'must be a single character'
+          );
+        }
+      }
+
+      const multipleOption = objectGetOwn(optionConfig, 'multiple');
+      if (ObjectHasOwn(optionConfig, 'multiple')) {
+        validateBoolean(multipleOption, `options.${longOption}.multiple`);
+      }
+
+      const defaultValue = objectGetOwn(optionConfig, 'default');
+      if (defaultValue !== undefined) {
+        let validator;
+        switch (optionType) {
+          case 'string':
+            validator = multipleOption ? validateStringArray : validateString;
+            break;
+
+          case 'boolean':
+            validator = multipleOption ? validateBooleanArray : validateBoolean;
+            break;
+        }
+        validator(defaultValue, `options.${longOption}.default`);
+      }
+    }
+  );
+
+  // Phase 1: identify tokens
+  const tokens = argsToTokens(args, options);
+
+  // Phase 2: process tokens into parsed option values and positionals
+  const result = {
+    values: { __proto__: null },
+    positionals: [],
+  };
+  if (returnTokens) {
+    result.tokens = tokens;
+  }
+  ArrayPrototypeForEach(tokens, (token) => {
+    if (token.kind === 'option') {
+      if (strict) {
+        checkOptionUsage(parseConfig, token);
+        checkOptionLikeValue(token);
+      }
+      storeOption(token.name, token.value, options, result.values);
+    } else if (token.kind === 'positional') {
+      if (!allowPositionals) {
+        throw new ERR_PARSE_ARGS_UNEXPECTED_POSITIONAL(token.value);
+      }
+      ArrayPrototypePush(result.positionals, token.value);
+    }
+  });
+
+  // Phase 3: fill in default values for missing args
+  ArrayPrototypeForEach(ObjectEntries(options), ({ 0: longOption,
+                                                   1: optionConfig }) => {
+    const mustSetDefault = useDefaultValueOption(longOption,
+                                                 optionConfig,
+                                                 result.values);
+    if (mustSetDefault) {
+      storeDefaultOption(longOption,
+                         objectGetOwn(optionConfig, 'default'),
+                         result.values);
+    }
+  });
+
+
+  return result;
+};
+
+module.exports = {
+  parseArgs,
+};
--- a/backend/node_modules/@pkgjs/parseargs/internal/errors.js
+++ b/backend/node_modules/@pkgjs/parseargs/internal/errors.js
@ -0,0 +1,47 @@
+'use strict';
+
+class ERR_INVALID_ARG_TYPE extends TypeError {
+  constructor(name, expected, actual) {
+    super(`${name} must be ${expected} got ${actual}`);
+    this.code = 'ERR_INVALID_ARG_TYPE';
+  }
+}
+
+class ERR_INVALID_ARG_VALUE extends TypeError {
+  constructor(arg1, arg2, expected) {
+    super(`The property ${arg1} ${expected}. Received '${arg2}'`);
+    this.code = 'ERR_INVALID_ARG_VALUE';
+  }
+}
+
+class ERR_PARSE_ARGS_INVALID_OPTION_VALUE extends Error {
+  constructor(message) {
+    super(message);
+    this.code = 'ERR_PARSE_ARGS_INVALID_OPTION_VALUE';
+  }
+}
+
+class ERR_PARSE_ARGS_UNKNOWN_OPTION extends Error {
+  constructor(option, allowPositionals) {
+    const suggestDashDash = allowPositionals ? `. To specify a positional argument starting with a '-', place it at the end of the command after '--', as in '-- ${JSON.stringify(option)}` : '';
+    super(`Unknown option '${option}'${suggestDashDash}`);
+    this.code = 'ERR_PARSE_ARGS_UNKNOWN_OPTION';
+  }
+}
+
+class ERR_PARSE_ARGS_UNEXPECTED_POSITIONAL extends Error {
+  constructor(positional) {
+    super(`Unexpected argument '${positional}'. This command does not take positional arguments`);
+    this.code = 'ERR_PARSE_ARGS_UNEXPECTED_POSITIONAL';
+  }
+}
+
+module.exports = {
+  codes: {
+    ERR_INVALID_ARG_TYPE,
+    ERR_INVALID_ARG_VALUE,
+    ERR_PARSE_ARGS_INVALID_OPTION_VALUE,
+    ERR_PARSE_ARGS_UNKNOWN_OPTION,
+    ERR_PARSE_ARGS_UNEXPECTED_POSITIONAL,
+  }
+};
--- a/backend/node_modules/@pkgjs/parseargs/internal/primordials.js
+++ b/backend/node_modules/@pkgjs/parseargs/internal/primordials.js
@ -0,0 +1,393 @@
+/*
+This file is copied from https://github.com/nodejs/node/blob/v14.19.3/lib/internal/per_context/primordials.js
+under the following license:
+
+Copyright Node.js contributors. All rights reserved.
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to
+deal in the Software without restriction, including without limitation the
+rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+sell copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+IN THE SOFTWARE.
+*/
+
+'use strict';
+
+/* eslint-disable node-core/prefer-primordials */
+
+// This file subclasses and stores the JS builtins that come from the VM
+// so that Node.js's builtin modules do not need to later look these up from
+// the global proxy, which can be mutated by users.
+
+// Use of primordials have sometimes a dramatic impact on performance, please
+// benchmark all changes made in performance-sensitive areas of the codebase.
+// See: https://github.com/nodejs/node/pull/38248
+
+const primordials = {};
+
+const {
+  defineProperty: ReflectDefineProperty,
+  getOwnPropertyDescriptor: ReflectGetOwnPropertyDescriptor,
+  ownKeys: ReflectOwnKeys,
+} = Reflect;
+
+// `uncurryThis` is equivalent to `func => Function.prototype.call.bind(func)`.
+// It is using `bind.bind(call)` to avoid using `Function.prototype.bind`
+// and `Function.prototype.call` after it may have been mutated by users.
+const { apply, bind, call } = Function.prototype;
+const uncurryThis = bind.bind(call);
+primordials.uncurryThis = uncurryThis;
+
+// `applyBind` is equivalent to `func => Function.prototype.apply.bind(func)`.
+// It is using `bind.bind(apply)` to avoid using `Function.prototype.bind`
+// and `Function.prototype.apply` after it may have been mutated by users.
+const applyBind = bind.bind(apply);
+primordials.applyBind = applyBind;
+
+// Methods that accept a variable number of arguments, and thus it's useful to
+// also create `${prefix}${key}Apply`, which uses `Function.prototype.apply`,
+// instead of `Function.prototype.call`, and thus doesn't require iterator
+// destructuring.
+const varargsMethods = [
+  // 'ArrayPrototypeConcat' is omitted, because it performs the spread
+  // on its own for arrays and array-likes with a truthy
+  // @@isConcatSpreadable symbol property.
+  'ArrayOf',
+  'ArrayPrototypePush',
+  'ArrayPrototypeUnshift',
+  // 'FunctionPrototypeCall' is omitted, since there's 'ReflectApply'
+  // and 'FunctionPrototypeApply'.
+  'MathHypot',
+  'MathMax',
+  'MathMin',
+  'StringPrototypeConcat',
+  'TypedArrayOf',
+];
+
+function getNewKey(key) {
+  return typeof key === 'symbol' ?
+    `Symbol${key.description[7].toUpperCase()}${key.description.slice(8)}` :
+    `${key[0].toUpperCase()}${key.slice(1)}`;
+}
+
+function copyAccessor(dest, prefix, key, { enumerable, get, set }) {
+  ReflectDefineProperty(dest, `${prefix}Get${key}`, {
+    value: uncurryThis(get),
+    enumerable
+  });
+  if (set !== undefined) {
+    ReflectDefineProperty(dest, `${prefix}Set${key}`, {
+      value: uncurryThis(set),
+      enumerable
+    });
+  }
+}
+
+function copyPropsRenamed(src, dest, prefix) {
+  for (const key of ReflectOwnKeys(src)) {
+    const newKey = getNewKey(key);
+    const desc = ReflectGetOwnPropertyDescriptor(src, key);
+    if ('get' in desc) {
+      copyAccessor(dest, prefix, newKey, desc);
+    } else {
+      const name = `${prefix}${newKey}`;
+      ReflectDefineProperty(dest, name, desc);
+      if (varargsMethods.includes(name)) {
+        ReflectDefineProperty(dest, `${name}Apply`, {
+          // `src` is bound as the `this` so that the static `this` points
+          // to the object it was defined on,
+          // e.g.: `ArrayOfApply` gets a `this` of `Array`:
+          value: applyBind(desc.value, src),
+        });
+      }
+    }
+  }
+}
+
+function copyPropsRenamedBound(src, dest, prefix) {
+  for (const key of ReflectOwnKeys(src)) {
+    const newKey = getNewKey(key);
+    const desc = ReflectGetOwnPropertyDescriptor(src, key);
+    if ('get' in desc) {
+      copyAccessor(dest, prefix, newKey, desc);
+    } else {
+      const { value } = desc;
+      if (typeof value === 'function') {
+        desc.value = value.bind(src);
+      }
+
+      const name = `${prefix}${newKey}`;
+      ReflectDefineProperty(dest, name, desc);
+      if (varargsMethods.includes(name)) {
+        ReflectDefineProperty(dest, `${name}Apply`, {
+          value: applyBind(value, src),
+        });
+      }
+    }
+  }
+}
+
+function copyPrototype(src, dest, prefix) {
+  for (const key of ReflectOwnKeys(src)) {
+    const newKey = getNewKey(key);
+    const desc = ReflectGetOwnPropertyDescriptor(src, key);
+    if ('get' in desc) {
+      copyAccessor(dest, prefix, newKey, desc);
+    } else {
+      const { value } = desc;
+      if (typeof value === 'function') {
+        desc.value = uncurryThis(value);
+      }
+
+      const name = `${prefix}${newKey}`;
+      ReflectDefineProperty(dest, name, desc);
+      if (varargsMethods.includes(name)) {
+        ReflectDefineProperty(dest, `${name}Apply`, {
+          value: applyBind(value),
+        });
+      }
+    }
+  }
+}
+
+// Create copies of configurable value properties of the global object
+[
+  'Proxy',
+  'globalThis',
+].forEach((name) => {
+  // eslint-disable-next-line no-restricted-globals
+  primordials[name] = globalThis[name];
+});
+
+// Create copies of URI handling functions
+[
+  decodeURI,
+  decodeURIComponent,
+  encodeURI,
+  encodeURIComponent,
+].forEach((fn) => {
+  primordials[fn.name] = fn;
+});
+
+// Create copies of the namespace objects
+[
+  'JSON',
+  'Math',
+  'Proxy',
+  'Reflect',
+].forEach((name) => {
+  // eslint-disable-next-line no-restricted-globals
+  copyPropsRenamed(global[name], primordials, name);
+});
+
+// Create copies of intrinsic objects
+[
+  'Array',
+  'ArrayBuffer',
+  'BigInt',
+  'BigInt64Array',
+  'BigUint64Array',
+  'Boolean',
+  'DataView',
+  'Date',
+  'Error',
+  'EvalError',
+  'Float32Array',
+  'Float64Array',
+  'Function',
+  'Int16Array',
+  'Int32Array',
+  'Int8Array',
+  'Map',
+  'Number',
+  'Object',
+  'RangeError',
+  'ReferenceError',
+  'RegExp',
+  'Set',
+  'String',
+  'Symbol',
+  'SyntaxError',
+  'TypeError',
+  'URIError',
+  'Uint16Array',
+  'Uint32Array',
+  'Uint8Array',
+  'Uint8ClampedArray',
+  'WeakMap',
+  'WeakSet',
+].forEach((name) => {
+  // eslint-disable-next-line no-restricted-globals
+  const original = global[name];
+  primordials[name] = original;
+  copyPropsRenamed(original, primordials, name);
+  copyPrototype(original.prototype, primordials, `${name}Prototype`);
+});
+
+// Create copies of intrinsic objects that require a valid `this` to call
+// static methods.
+// Refs: https://www.ecma-international.org/ecma-262/#sec-promise.all
+[
+  'Promise',
+].forEach((name) => {
+  // eslint-disable-next-line no-restricted-globals
+  const original = global[name];
+  primordials[name] = original;
+  copyPropsRenamedBound(original, primordials, name);
+  copyPrototype(original.prototype, primordials, `${name}Prototype`);
+});
+
+// Create copies of abstract intrinsic objects that are not directly exposed
+// on the global object.
+// Refs: https://tc39.es/ecma262/#sec-%typedarray%-intrinsic-object
+[
+  { name: 'TypedArray', original: Reflect.getPrototypeOf(Uint8Array) },
+  { name: 'ArrayIterator', original: {
+    prototype: Reflect.getPrototypeOf(Array.prototype[Symbol.iterator]()),
+  } },
+  { name: 'StringIterator', original: {
+    prototype: Reflect.getPrototypeOf(String.prototype[Symbol.iterator]()),
+  } },
+].forEach(({ name, original }) => {
+  primordials[name] = original;
+  // The static %TypedArray% methods require a valid `this`, but can't be bound,
+  // as they need a subclass constructor as the receiver:
+  copyPrototype(original, primordials, name);
+  copyPrototype(original.prototype, primordials, `${name}Prototype`);
+});
+
+/* eslint-enable node-core/prefer-primordials */
+
+const {
+  ArrayPrototypeForEach,
+  FunctionPrototypeCall,
+  Map,
+  ObjectFreeze,
+  ObjectSetPrototypeOf,
+  Set,
+  SymbolIterator,
+  WeakMap,
+  WeakSet,
+} = primordials;
+
+// Because these functions are used by `makeSafe`, which is exposed
+// on the `primordials` object, it's important to use const references
+// to the primordials that they use:
+const createSafeIterator = (factory, next) => {
+  class SafeIterator {
+    constructor(iterable) {
+      this._iterator = factory(iterable);
+    }
+    next() {
+      return next(this._iterator);
+    }
+    [SymbolIterator]() {
+      return this;
+    }
+  }
+  ObjectSetPrototypeOf(SafeIterator.prototype, null);
+  ObjectFreeze(SafeIterator.prototype);
+  ObjectFreeze(SafeIterator);
+  return SafeIterator;
+};
+
+primordials.SafeArrayIterator = createSafeIterator(
+  primordials.ArrayPrototypeSymbolIterator,
+  primordials.ArrayIteratorPrototypeNext
+);
+primordials.SafeStringIterator = createSafeIterator(
+  primordials.StringPrototypeSymbolIterator,
+  primordials.StringIteratorPrototypeNext
+);
+
+const copyProps = (src, dest) => {
+  ArrayPrototypeForEach(ReflectOwnKeys(src), (key) => {
+    if (!ReflectGetOwnPropertyDescriptor(dest, key)) {
+      ReflectDefineProperty(
+        dest,
+        key,
+        ReflectGetOwnPropertyDescriptor(src, key));
+    }
+  });
+};
+
+const makeSafe = (unsafe, safe) => {
+  if (SymbolIterator in unsafe.prototype) {
+    const dummy = new unsafe();
+    let next; // We can reuse the same `next` method.
+
+    ArrayPrototypeForEach(ReflectOwnKeys(unsafe.prototype), (key) => {
+      if (!ReflectGetOwnPropertyDescriptor(safe.prototype, key)) {
+        const desc = ReflectGetOwnPropertyDescriptor(unsafe.prototype, key);
+        if (
+          typeof desc.value === 'function' &&
+          desc.value.length === 0 &&
+          SymbolIterator in (FunctionPrototypeCall(desc.value, dummy) ?? {})
+        ) {
+          const createIterator = uncurryThis(desc.value);
+          next = next ?? uncurryThis(createIterator(dummy).next);
+          const SafeIterator = createSafeIterator(createIterator, next);
+          desc.value = function() {
+            return new SafeIterator(this);
+          };
+        }
+        ReflectDefineProperty(safe.prototype, key, desc);
+      }
+    });
+  } else {
+    copyProps(unsafe.prototype, safe.prototype);
+  }
+  copyProps(unsafe, safe);
+
+  ObjectSetPrototypeOf(safe.prototype, null);
+  ObjectFreeze(safe.prototype);
+  ObjectFreeze(safe);
+  return safe;
+};
+primordials.makeSafe = makeSafe;
+
+// Subclass the constructors because we need to use their prototype
+// methods later.
+// Defining the `constructor` is necessary here to avoid the default
+// constructor which uses the user-mutable `%ArrayIteratorPrototype%.next`.
+primordials.SafeMap = makeSafe(
+  Map,
+  class SafeMap extends Map {
+    constructor(i) { super(i); } // eslint-disable-line no-useless-constructor
+  }
+);
+primordials.SafeWeakMap = makeSafe(
+  WeakMap,
+  class SafeWeakMap extends WeakMap {
+    constructor(i) { super(i); } // eslint-disable-line no-useless-constructor
+  }
+);
+primordials.SafeSet = makeSafe(
+  Set,
+  class SafeSet extends Set {
+    constructor(i) { super(i); } // eslint-disable-line no-useless-constructor
+  }
+);
+primordials.SafeWeakSet = makeSafe(
+  WeakSet,
+  class SafeWeakSet extends WeakSet {
+    constructor(i) { super(i); } // eslint-disable-line no-useless-constructor
+  }
+);
+
+ObjectSetPrototypeOf(primordials, null);
+ObjectFreeze(primordials);
+
+module.exports = primordials;
--- a/backend/node_modules/@pkgjs/parseargs/internal/util.js
+++ b/backend/node_modules/@pkgjs/parseargs/internal/util.js
@ -0,0 +1,14 @@
+'use strict';
+
+// This is a placeholder for util.js in node.js land.
+
+const {
+  ObjectCreate,
+  ObjectFreeze,
+} = require('./primordials');
+
+const kEmptyObject = ObjectFreeze(ObjectCreate(null));
+
+module.exports = {
+  kEmptyObject,
+};
--- a/backend/node_modules/@pkgjs/parseargs/internal/validators.js
+++ b/backend/node_modules/@pkgjs/parseargs/internal/validators.js
@ -0,0 +1,89 @@
+'use strict';
+
+// This file is a proxy of the original file located at:
+// https://github.com/nodejs/node/blob/main/lib/internal/validators.js
+// Every addition or modification to this file must be evaluated
+// during the PR review.
+
+const {
+  ArrayIsArray,
+  ArrayPrototypeIncludes,
+  ArrayPrototypeJoin,
+} = require('./primordials');
+
+const {
+  codes: {
+    ERR_INVALID_ARG_TYPE
+  }
+} = require('./errors');
+
+function validateString(value, name) {
+  if (typeof value !== 'string') {
+    throw new ERR_INVALID_ARG_TYPE(name, 'String', value);
+  }
+}
+
+function validateUnion(value, name, union) {
+  if (!ArrayPrototypeIncludes(union, value)) {
+    throw new ERR_INVALID_ARG_TYPE(name, `('${ArrayPrototypeJoin(union, '|')}')`, value);
+  }
+}
+
+function validateBoolean(value, name) {
+  if (typeof value !== 'boolean') {
+    throw new ERR_INVALID_ARG_TYPE(name, 'Boolean', value);
+  }
+}
+
+function validateArray(value, name) {
+  if (!ArrayIsArray(value)) {
+    throw new ERR_INVALID_ARG_TYPE(name, 'Array', value);
+  }
+}
+
+function validateStringArray(value, name) {
+  validateArray(value, name);
+  for (let i = 0; i < value.length; i++) {
+    validateString(value[i], `${name}[${i}]`);
+  }
+}
+
+function validateBooleanArray(value, name) {
+  validateArray(value, name);
+  for (let i = 0; i < value.length; i++) {
+    validateBoolean(value[i], `${name}[${i}]`);
+  }
+}
+
+/**
+ * @param {unknown} value
+ * @param {string} name
+ * @param {{
+ *   allowArray?: boolean,
+ *   allowFunction?: boolean,
+ *   nullable?: boolean
+ * }} [options]
+ */
+function validateObject(value, name, options) {
+  const useDefaultOptions = options == null;
+  const allowArray = useDefaultOptions ? false : options.allowArray;
+  const allowFunction = useDefaultOptions ? false : options.allowFunction;
+  const nullable = useDefaultOptions ? false : options.nullable;
+  if ((!nullable && value === null) ||
+      (!allowArray && ArrayIsArray(value)) ||
+      (typeof value !== 'object' && (
+        !allowFunction || typeof value !== 'function'
+      ))) {
+    throw new ERR_INVALID_ARG_TYPE(name, 'Object', value);
+  }
+}
+
+module.exports = {
+  validateArray,
+  validateObject,
+  validateString,
+  validateStringArray,
+  validateUnion,
+  validateBoolean,
+  validateBooleanArray,
+};
--- a/backend/node_modules/@pkgjs/parseargs/package.json
+++ b/backend/node_modules/@pkgjs/parseargs/package.json
@ -0,0 +1,36 @@
+{
+  "name": "@pkgjs/parseargs",
+  "version": "0.11.0",
+  "description": "Polyfill of future proposal for `util.parseArgs()`",
+  "engines": {
+    "node": ">=14"
+  },
+  "main": "index.js",
+  "exports": {
+    ".": "./index.js",
+    "./package.json": "./package.json"
+  },
+  "scripts": {
+    "coverage": "c8 --check-coverage tape 'test/*.js'",
+    "test": "c8 tape 'test/*.js'",
+    "posttest": "eslint .",
+    "fix": "npm run posttest -- --fix"
+  },
+  "repository": {
+    "type": "git",
+    "url": "git@github.com:pkgjs/parseargs.git"
+  },
+  "keywords": [],
+  "author": "",
+  "license": "MIT",
+  "bugs": {
+    "url": "https://github.com/pkgjs/parseargs/issues"
+  },
+  "homepage": "https://github.com/pkgjs/parseargs#readme",
+  "devDependencies": {
+    "c8": "^7.10.0",
+    "eslint": "^8.2.0",
+    "eslint-plugin-node-core": "iansu/eslint-plugin-node-core",
+    "tape": "^5.2.2"
+  }
+}
--- a/backend/node_modules/@pkgjs/parseargs/utils.js
+++ b/backend/node_modules/@pkgjs/parseargs/utils.js
@ -0,0 +1,198 @@
+'use strict';
+
+const {
+  ArrayPrototypeFind,
+  ObjectEntries,
+  ObjectPrototypeHasOwnProperty: ObjectHasOwn,
+  StringPrototypeCharAt,
+  StringPrototypeIncludes,
+  StringPrototypeStartsWith,
+} = require('./internal/primordials');
+
+const {
+  validateObject,
+} = require('./internal/validators');
+
+// These are internal utilities to make the parsing logic easier to read, and
+// add lots of detail for the curious. They are in a separate file to allow
+// unit testing, although that is not essential (this could be rolled into
+// main file and just tested implicitly via API).
+//
+// These routines are for internal use, not for export to client.
+
+/**
+ * Return the named property, but only if it is an own property.
+ */
+function objectGetOwn(obj, prop) {
+  if (ObjectHasOwn(obj, prop))
+    return obj[prop];
+}
+
+/**
+ * Return the named options property, but only if it is an own property.
+ */
+function optionsGetOwn(options, longOption, prop) {
+  if (ObjectHasOwn(options, longOption))
+    return objectGetOwn(options[longOption], prop);
+}
+
+/**
+ * Determines if the argument may be used as an option value.
+ * @example
+ * isOptionValue('V') // returns true
+ * isOptionValue('-v') // returns true (greedy)
+ * isOptionValue('--foo') // returns true (greedy)
+ * isOptionValue(undefined) // returns false
+ */
+function isOptionValue(value) {
+  if (value == null) return false;
+
+  // Open Group Utility Conventions are that an option-argument
+  // is the argument after the option, and may start with a dash.
+  return true; // greedy!
+}
+
+/**
+ * Detect whether there is possible confusion and user may have omitted
+ * the option argument, like `--port --verbose` when `port` of type:string.
+ * In strict mode we throw errors if value is option-like.
+ */
+function isOptionLikeValue(value) {
+  if (value == null) return false;
+
+  return value.length > 1 && StringPrototypeCharAt(value, 0) === '-';
+}
+
+/**
+ * Determines if `arg` is just a short option.
+ * @example '-f'
+ */
+function isLoneShortOption(arg) {
+  return arg.length === 2 &&
+    StringPrototypeCharAt(arg, 0) === '-' &&
+    StringPrototypeCharAt(arg, 1) !== '-';
+}
+
+/**
+ * Determines if `arg` is a lone long option.
+ * @example
+ * isLoneLongOption('a') // returns false
+ * isLoneLongOption('-a') // returns false
+ * isLoneLongOption('--foo') // returns true
+ * isLoneLongOption('--foo=bar') // returns false
+ */
+function isLoneLongOption(arg) {
+  return arg.length > 2 &&
+    StringPrototypeStartsWith(arg, '--') &&
+    !StringPrototypeIncludes(arg, '=', 3);
+}
+
+/**
+ * Determines if `arg` is a long option and value in the same argument.
+ * @example
+ * isLongOptionAndValue('--foo') // returns false
+ * isLongOptionAndValue('--foo=bar') // returns true
+ */
+function isLongOptionAndValue(arg) {
+  return arg.length > 2 &&
+    StringPrototypeStartsWith(arg, '--') &&
+    StringPrototypeIncludes(arg, '=', 3);
+}
+
+/**
+ * Determines if `arg` is a short option group.
+ *
+ * See Guideline 5 of the [Open Group Utility Conventions](https://pubs.opengroup.org/onlinepubs/9699919799/basedefs/V1_chap12.html).
+ *   One or more options without option-arguments, followed by at most one
+ *   option that takes an option-argument, should be accepted when grouped
+ *   behind one '-' delimiter.
+ * @example
+ * isShortOptionGroup('-a', {}) // returns false
+ * isShortOptionGroup('-ab', {}) // returns true
+ * // -fb is an option and a value, not a short option group
+ * isShortOptionGroup('-fb', {
+ *   options: { f: { type: 'string' } }
+ * }) // returns false
+ * isShortOptionGroup('-bf', {
+ *   options: { f: { type: 'string' } }
+ * }) // returns true
+ * // -bfb is an edge case, return true and caller sorts it out
+ * isShortOptionGroup('-bfb', {
+ *   options: { f: { type: 'string' } }
+ * }) // returns true
+ */
+function isShortOptionGroup(arg, options) {
+  if (arg.length <= 2) return false;
+  if (StringPrototypeCharAt(arg, 0) !== '-') return false;
+  if (StringPrototypeCharAt(arg, 1) === '-') return false;
+
+  const firstShort = StringPrototypeCharAt(arg, 1);
+  const longOption = findLongOptionForShort(firstShort, options);
+  return optionsGetOwn(options, longOption, 'type') !== 'string';
+}
+
+/**
+ * Determine if arg is a short string option followed by its value.
+ * @example
+ * isShortOptionAndValue('-a', {}); // returns false
+ * isShortOptionAndValue('-ab', {}); // returns false
+ * isShortOptionAndValue('-fFILE', {
+ *   options: { foo: { short: 'f', type: 'string' }}
+ * }) // returns true
+ */
+function isShortOptionAndValue(arg, options) {
+  validateObject(options, 'options');
+
+  if (arg.length <= 2) return false;
+  if (StringPrototypeCharAt(arg, 0) !== '-') return false;
+  if (StringPrototypeCharAt(arg, 1) === '-') return false;
+
+  const shortOption = StringPrototypeCharAt(arg, 1);
+  const longOption = findLongOptionForShort(shortOption, options);
+  return optionsGetOwn(options, longOption, 'type') === 'string';
+}
+
+/**
+ * Find the long option associated with a short option. Looks for a configured
+ * `short` and returns the short option itself if a long option is not found.
+ * @example
+ * findLongOptionForShort('a', {}) // returns 'a'
+ * findLongOptionForShort('b', {
+ *   options: { bar: { short: 'b' } }
+ * }) // returns 'bar'
+ */
+function findLongOptionForShort(shortOption, options) {
+  validateObject(options, 'options');
+  const longOptionEntry = ArrayPrototypeFind(
+    ObjectEntries(options),
+    ({ 1: optionConfig }) => objectGetOwn(optionConfig, 'short') === shortOption
+  );
+  return longOptionEntry?.[0] ?? shortOption;
+}
+
+/**
+ * Check if the given option includes a default value
+ * and that option has not been set by the input args.
+ *
+ * @param {string} longOption - long option name e.g. 'foo'
+ * @param {object} optionConfig - the option configuration properties
+ * @param {object} values - option values returned in `values` by parseArgs
+ */
+function useDefaultValueOption(longOption, optionConfig, values) {
+  return objectGetOwn(optionConfig, 'default') !== undefined &&
+    values[longOption] === undefined;
+}
+
+module.exports = {
+  findLongOptionForShort,
+  isLoneLongOption,
+  isLoneShortOption,
+  isLongOptionAndValue,
+  isOptionValue,
+  isOptionLikeValue,
+  isShortOptionAndValue,
+  isShortOptionGroup,
+  useDefaultValueOption,
+  objectGetOwn,
+  optionsGetOwn,
+};
--- a/backend/node_modules/@rollup/rollup-win32-x64-msvc/README.md
+++ b/backend/node_modules/@rollup/rollup-win32-x64-msvc/README.md
@ -0,0 +1,3 @@
+# `@rollup/rollup-win32-x64-msvc`
+
+This is the **x86_64-pc-windows-msvc** binary for `rollup`
--- a/backend/node_modules/@rollup/rollup-win32-x64-msvc/package.json
+++ b/backend/node_modules/@rollup/rollup-win32-x64-msvc/package.json
@ -0,0 +1,19 @@
+{
+  "name": "@rollup/rollup-win32-x64-msvc",
+  "version": "4.41.1",
+  "os": [
+    "win32"
+  ],
+  "cpu": [
+    "x64"
+  ],
+  "files": [
+    "rollup.win32-x64-msvc.node"
+  ],
+  "description": "Native bindings for Rollup",
+  "author": "Lukas Taegert-Atkinson",
+  "homepage": "https://rollupjs.org/",
+  "license": "MIT",
+  "repository": "rollup/rollup",
+  "main": "./rollup.win32-x64-msvc.node"
+}
--- a/backend/node_modules/@rollup/rollup-win32-x64-msvc/rollup.win32-x64-msvc.node
+++ b/backend/node_modules/@rollup/rollup-win32-x64-msvc/rollup.win32-x64-msvc.node
--- a/backend/static/css/input.css
+++ b/backend/static/css/input.css
@ -2,35 +2,53 @@
@tailwind components;
@tailwind utilities;

-/* Custom Styles für Light und Dark Mode */
+/* Custom Styles für Light und Dark Mode - Premium Upgrade */
@layer base {
  :root {
-    /* Light Mode Farben */
+    /* Light Mode Farben - Mercedes-Benz Professional */
    --color-bg-primary: #ffffff;
    --color-bg-secondary: #f8fafc;
+    --color-bg-tertiary: #f1f5f9;
+    --color-bg-accent: #fafbfc;
    --color-text-primary: #0f172a;
    --color-text-secondary: #334155;
    --color-text-muted: #64748b;
+    --color-text-accent: #0073ce;
    --color-border-primary: #e2e8f0;
-    --color-accent: #000000; /* Mercedes-Benz Schwarz statt Blau */
-    --color-accent-hover: #333333;
+    --color-border-secondary: #cbd5e1;
+    --color-accent: #0073ce; /* Mercedes-Benz Professional Blau */
+    --color-accent-hover: #005a9f;
+    --color-accent-light: #e0f2fe;
    --color-accent-text: #ffffff;
-    --color-shadow: rgba(0, 0, 0, 0.1);
+    --color-shadow: rgba(0, 0, 0, 0.08);
+    --color-shadow-strong: rgba(0, 0, 0, 0.12);
+    --color-shadow-accent: rgba(0, 115, 206, 0.15);
    --card-radius: 1rem; /* Abgerundete Ecken für Karten */
+    
+    /* Light Mode Gradients */
+    --gradient-primary: linear-gradient(135deg, #ffffff 0%, #f8fafc 50%, #f1f5f9 100%);
+    --gradient-card: linear-gradient(135deg, #ffffff 0%, #fafbfc 100%);
+    --gradient-hero: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 50%, #f1f5f9 100%);
+    --gradient-accent: linear-gradient(135deg, #0073ce 0%, #005a9f 100%);
+    --gradient-surface: linear-gradient(135deg, #ffffff 0%, #f8fafc 100%);
  }

  .dark {
    /* Dark Mode Farben - Noch dunkler und eleganter */
    --color-bg-primary: #000000; /* Tiefes Schwarz */
    --color-bg-secondary: #0a0a0a; /* Sehr dunkles Grau */
+    --color-bg-tertiary: #1a1a1a;
    --color-text-primary: #ffffff;
    --color-text-secondary: #e2e8f0;
    --color-text-muted: #94a3b8;
    --color-border-primary: #1a1a1a; /* Dunkler Rahmen */
+    --color-border-secondary: #2a2a2a;
    --color-accent: #ffffff; /* Reines Weiß */
    --color-accent-hover: #f0f0f0;
+    --color-accent-light: #1e3a8a;
    --color-accent-text: #000000;
    --color-shadow: rgba(0, 0, 0, 0.8); /* Sehr dunkler Schatten */
+    --color-shadow-strong: rgba(0, 0, 0, 0.9);
    --mb-black: #000000; /* Mercedes-Benz Schwarz */
  }
  
@ -38,27 +56,743 @@
    @apply bg-white dark:bg-black text-slate-900 dark:text-white transition-colors duration-300;
    position: relative;
    min-height: 100vh;
+    background: var(--gradient-primary);
+    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
+    font-feature-settings: 'cv02', 'cv03', 'cv04', 'cv11';
+    line-height: 1.6;
  }

  .dark body {
    background: linear-gradient(135deg, #000000 0%, #0a0a0a 50%, #000000 100%);
  }

-  /* Navbar Styles - Glassmorphism ohne überlagerte Hintergründe */
-  nav {
-    @apply bg-white/60 dark:bg-black/60 backdrop-blur-xl border-b border-gray-200/70 dark:border-slate-700/20 shadow-lg transition-all duration-300;
-    backdrop-filter: blur(20px) saturate(180%);
-    -webkit-backdrop-filter: blur(20px) saturate(180%);
-    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.15), 0 0 0 1px rgba(255, 255, 255, 0.05);
+  /* Enhanced Body Background with Subtle Patterns */
+  body::before {
+    content: '';
+    position: fixed;
+    top: 0;
+    left: 0;
+    right: 0;
+    bottom: 0;
+    background: 
+      radial-gradient(circle at 20% 50%, rgba(0, 115, 206, 0.02) 0%, transparent 50%),
+      radial-gradient(circle at 80% 20%, rgba(0, 115, 206, 0.015) 0%, transparent 50%),
+      radial-gradient(circle at 40% 80%, rgba(0, 115, 206, 0.01) 0%, transparent 50%);
+    pointer-events: none;
+    z-index: -1;
  }

-  /* Benutzer-Dropdown Styles */
-  #user-dropdown {
-    @apply absolute right-0 mt-2 w-64 bg-white/60 dark:bg-black/60 backdrop-blur-xl border border-gray-200/70 dark:border-slate-700/20 rounded-xl shadow-2xl transition-all duration-200 z-50;
-    backdrop-filter: blur(20px) saturate(180%) brightness(110%);
-    -webkit-backdrop-filter: blur(20px) saturate(180%) brightness(110%);
-    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.2), 0 0 0 1px rgba(255, 255, 255, 0.1);
-    animation: fadeIn 0.2s ease-out forwards;
+  .dark body::before {
+    background: 
+      radial-gradient(circle at 20% 50%, rgba(59, 130, 246, 0.03) 0%, transparent 50%),
+      radial-gradient(circle at 80% 20%, rgba(59, 130, 246, 0.02) 0%, transparent 50%);
+  }
+
+  /* Navbar Styles - Premium Glassmorphism */
+  nav {
+    @apply backdrop-blur-xl border-b transition-all duration-300;
+    background: linear-gradient(135deg, 
+      rgba(255, 255, 255, 0.9) 0%, 
+      rgba(248, 250, 252, 0.85) 50%, 
+      rgba(255, 255, 255, 0.9) 100%);
+    border-bottom: 1px solid rgba(226, 232, 240, 0.6);
+    backdrop-filter: blur(24px) saturate(200%) brightness(115%);
+    -webkit-backdrop-filter: blur(24px) saturate(200%) brightness(115%);
+    box-shadow: 
+      0 8px 32px rgba(0, 0, 0, 0.08),
+      0 4px 12px rgba(0, 115, 206, 0.04),
+      inset 0 1px 0 rgba(255, 255, 255, 0.8);
+  }
+  
+  .dark nav {
+    background: rgba(0, 0, 0, 0.85);
+    border-bottom-color: rgba(255, 255, 255, 0.1);
+    box-shadow: 
+      0 8px 32px rgba(0, 0, 0, 0.3),
+      inset 0 1px 0 rgba(255, 255, 255, 0.05);
+  }
+
+  /* Premium Card Styles */
+  .card-enhanced {
+    background: var(--gradient-card);
+    border: 1px solid var(--color-border-primary);
+    border-radius: var(--card-radius);
+    box-shadow: 
+      0 4px 20px var(--color-shadow),
+      0 2px 8px rgba(0, 115, 206, 0.04),
+      inset 0 1px 0 rgba(255, 255, 255, 0.6);
+    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
+    position: relative;
+    overflow: hidden;
+  }
+
+  .card-enhanced::before {
+    content: '';
+    position: absolute;
+    top: 0;
+    left: 0;
+    right: 0;
+    height: 2px;
+    background: var(--gradient-accent);
+    opacity: 0;
+    transition: opacity 0.3s ease;
+  }
+
+  .card-enhanced:hover {
+    transform: translateY(-4px);
+    box-shadow: 
+      0 8px 30px var(--color-shadow-strong),
+      0 4px 15px var(--color-shadow-accent),
+      inset 0 1px 0 rgba(255, 255, 255, 0.8);
+  }
+
+  .card-enhanced:hover::before {
+    opacity: 1;
+  }
+
+  .dark .card-enhanced {
+    background: rgba(10, 10, 10, 0.8);
+    border-color: var(--color-border-primary);
+    box-shadow: 0 4px 20px var(--color-shadow);
+  }
+
+  /* Premium Button Styles */
+  .btn-enhanced {
+    background: var(--gradient-accent);
+    color: var(--color-accent-text);
+    border: none;
+    border-radius: 0.75rem;
+    padding: 0.875rem 2rem;
+    font-weight: 600;
+    font-size: 0.875rem;
+    text-transform: uppercase;
+    letter-spacing: 0.05em;
+    box-shadow: 
+      0 4px 15px rgba(0, 115, 206, 0.3),
+      0 2px 8px rgba(0, 115, 206, 0.2);
+    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
+    position: relative;
+    overflow: hidden;
+  }
+
+  .btn-enhanced::before {
+    content: '';
+    position: absolute;
+    top: 0;
+    left: -100%;
+    width: 100%;
+    height: 100%;
+    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
+    transition: left 0.5s ease;
+  }
+
+  .btn-enhanced:hover {
+    transform: translateY(-2px);
+    box-shadow: 
+      0 8px 25px rgba(0, 115, 206, 0.4),
+      0 4px 12px rgba(0, 115, 206, 0.3);
+  }
+
+  .btn-enhanced:hover::before {
+    left: 100%;
+  }
+
+  .btn-enhanced:active {
+    transform: translateY(0);
+  }
+
+  .btn-secondary {
+    background: var(--gradient-surface);
+    color: var(--color-text-primary);
+    border: 1px solid var(--color-border-primary);
+    box-shadow: 
+      0 2px 8px var(--color-shadow),
+      inset 0 1px 0 rgba(255, 255, 255, 0.6);
+  }
+
+  .btn-secondary:hover {
+    background: var(--color-bg-secondary);
+    border-color: var(--color-accent);
+    color: var(--color-accent);
+    box-shadow: 
+      0 4px 15px var(--color-shadow-accent),
+      inset 0 1px 0 rgba(255, 255, 255, 0.8);
+  }
+
+  /* Enhanced Form Elements */
+  .input-enhanced {
+    background: rgba(255, 255, 255, 0.9);
+    border: 1px solid var(--color-border-primary);
+    border-radius: 0.75rem;
+    padding: 0.875rem 1.25rem;
+    color: var(--color-text-primary);
+    font-size: 0.925rem;
+    box-shadow: 
+      0 2px 8px rgba(0, 0, 0, 0.04),
+      inset 0 1px 0 rgba(255, 255, 255, 0.8);
+    transition: all 0.2s ease;
+    backdrop-filter: blur(8px);
+    -webkit-backdrop-filter: blur(8px);
+  }
+
+  .input-enhanced:focus {
+    outline: none;
+    border-color: var(--color-accent);
+    box-shadow: 
+      0 4px 15px rgba(0, 115, 206, 0.15),
+      0 0 0 3px rgba(0, 115, 206, 0.1),
+      inset 0 1px 0 rgba(255, 255, 255, 0.9);
+    background: rgba(255, 255, 255, 0.95);
+  }
+
+  .input-enhanced::placeholder {
+    color: var(--color-text-muted);
+    opacity: 0.7;
+  }
+
+  .dark .input-enhanced {
+    background: rgba(10, 10, 10, 0.8);
+    border-color: var(--color-border-primary);
+    color: var(--color-text-primary);
+    box-shadow: 
+      0 2px 8px var(--color-shadow),
+      inset 0 1px 0 rgba(255, 255, 255, 0.05);
+  }
+
+  .dark .input-enhanced:focus {
+    border-color: #60a5fa;
+    box-shadow: 
+      0 4px 15px rgba(96, 165, 250, 0.2),
+      0 0 0 3px rgba(96, 165, 250, 0.1);
+  }
+
+  /* Premium Alert Styles */
+  .alert-enhanced {
+    border-radius: 1rem;
+    padding: 1.25rem;
+    border: 1px solid transparent;
+    position: relative;
+    overflow: hidden;
+    backdrop-filter: blur(16px);
+    -webkit-backdrop-filter: blur(16px);
+  }
+
+  .alert-enhanced::before {
+    content: '';
+    position: absolute;
+    top: 0;
+    left: 0;
+    bottom: 0;
+    width: 4px;
+  }
+
+  .alert-info-enhanced {
+    background: linear-gradient(135deg, 
+      rgba(239, 246, 255, 0.95) 0%, 
+      rgba(219, 234, 254, 0.9) 100%);
+    border-color: rgba(59, 130, 246, 0.2);
+    color: #1e40af;
+  }
+
+  .alert-info-enhanced::before {
+    background: var(--gradient-accent);
+  }
+
+  .alert-success-enhanced {
+    background: linear-gradient(135deg, 
+      rgba(236, 253, 245, 0.95) 0%, 
+      rgba(167, 243, 208, 0.9) 100%);
+    border-color: rgba(16, 185, 129, 0.2);
+    color: #065f46;
+  }
+
+  .alert-success-enhanced::before {
+    background: linear-gradient(180deg, #10b981 0%, #059669 100%);
+  }
+
+  .alert-warning-enhanced {
+    background: linear-gradient(135deg, 
+      rgba(255, 251, 235, 0.95) 0%, 
+      rgba(254, 243, 199, 0.9) 100%);
+    border-color: rgba(251, 191, 36, 0.2);
+    color: #92400e;
+  }
+
+  .alert-warning-enhanced::before {
+    background: linear-gradient(180deg, #fbbf24 0%, #f59e0b 100%);
+  }
+
+  .alert-error-enhanced {
+    background: linear-gradient(135deg, 
+      rgba(254, 242, 242, 0.95) 0%, 
+      rgba(252, 165, 165, 0.9) 100%);
+    border-color: rgba(239, 68, 68, 0.2);
+    color: #991b1b;
+  }
+
+  .alert-error-enhanced::before {
+    background: linear-gradient(180deg, #ef4444 0%, #dc2626 100%);
+  }
+
+  /* Light Mode Flash Messages - Premium */
+  .flash-message-light {
+    background: linear-gradient(135deg, 
+      rgba(255, 255, 255, 0.95) 0%, 
+      rgba(248, 250, 252, 0.9) 100%);
+    backdrop-filter: blur(32px) saturate(200%) brightness(120%);
+    -webkit-backdrop-filter: blur(32px) saturate(200%) brightness(120%);
+    border: 1px solid rgba(226, 232, 240, 0.6);
+    box-shadow: 
+      0 25px 50px rgba(0, 0, 0, 0.1),
+      0 12px 24px rgba(0, 115, 206, 0.05),
+      inset 0 1px 0 rgba(255, 255, 255, 0.8);
+    color: var(--color-text-primary);
+  }
+
+  .flash-message-light.success {
+    border-left: 4px solid #10b981;
+    background: linear-gradient(135deg, 
+      rgba(236, 253, 245, 0.95) 0%, 
+      rgba(209, 250, 229, 0.9) 100%);
+  }
+
+  .flash-message-light.error {
+    border-left: 4px solid #ef4444;
+    background: linear-gradient(135deg, 
+      rgba(254, 242, 242, 0.95) 0%, 
+      rgba(252, 165, 165, 0.9) 100%);
+  }
+
+  .flash-message-light.warning {
+    border-left: 4px solid #fbbf24;
+    background: linear-gradient(135deg, 
+      rgba(255, 251, 235, 0.95) 0%, 
+      rgba(254, 243, 199, 0.9) 100%);
+  }
+
+  .flash-message-light.info {
+    border-left: 4px solid #3b82f6;
+    background: linear-gradient(135deg, 
+      rgba(239, 246, 255, 0.95) 0%, 
+      rgba(219, 234, 254, 0.9) 100%);
+  }
+
+  /* Premium Table Styles */
+  .table-enhanced {
+    background: var(--gradient-card);
+    border: 1px solid var(--color-border-primary);
+    border-radius: var(--card-radius);
+    overflow: hidden;
+    box-shadow: 
+      0 4px 20px var(--color-shadow),
+      0 2px 8px rgba(0, 115, 206, 0.04),
+      inset 0 1px 0 rgba(255, 255, 255, 0.6);
+  }
+
+  .table-enhanced th {
+    background: linear-gradient(135deg, 
+      var(--color-bg-secondary) 0%, 
+      var(--color-bg-tertiary) 100%);
+    color: var(--color-text-primary);
+    font-weight: 600;
+    padding: 1rem 1.5rem;
+    border-bottom: 1px solid var(--color-border-primary);
+    position: relative;
+  }
+
+  .table-enhanced th::after {
+    content: '';
+    position: absolute;
+    bottom: 0;
+    left: 0;
+    right: 0;
+    height: 1px;
+    background: linear-gradient(90deg, 
+      transparent 0%, 
+      var(--color-border-secondary) 50%, 
+      transparent 100%);
+  }
+
+  .table-enhanced td {
+    padding: 1rem 1.5rem;
+    border-bottom: 1px solid var(--color-border-primary);
+    color: var(--color-text-secondary);
+    transition: all 0.2s ease;
+  }
+
+  .table-enhanced tbody tr:hover {
+    background: var(--color-bg-secondary);
+    transform: scale(1.002);
+  }
+
+  .dark .table-enhanced {
+    background: rgba(10, 10, 10, 0.8);
+    border-color: var(--color-border-primary);
+  }
+
+  .dark .table-enhanced th {
+    background: rgba(26, 26, 26, 0.8);
+    color: var(--color-text-primary);
+  }
+
+  .dark .table-enhanced tbody tr:hover {
+    background: rgba(26, 26, 26, 0.6);
+  }
+
+  /* Premium Modal Styles */
+  .modal-enhanced {
+    background: linear-gradient(135deg, 
+      rgba(255, 255, 255, 0.98) 0%, 
+      rgba(248, 250, 252, 0.95) 50%, 
+      rgba(255, 255, 255, 0.98) 100%);
+    backdrop-filter: blur(32px) saturate(220%) brightness(120%);
+    -webkit-backdrop-filter: blur(32px) saturate(220%) brightness(120%);
+    border: 1px solid rgba(226, 232, 240, 0.7);
+    border-radius: 1.5rem;
+    box-shadow: 
+      0 50px 100px rgba(0, 0, 0, 0.15),
+      0 20px 40px rgba(0, 115, 206, 0.08),
+      inset 0 2px 0 rgba(255, 255, 255, 0.9);
+    position: relative;
+    overflow: hidden;
+  }
+
+  .modal-enhanced::before {
+    content: '';
+    position: absolute;
+    top: 0;
+    left: 0;
+    right: 0;
+    height: 1px;
+    background: linear-gradient(90deg, 
+      transparent 0%, 
+      rgba(226, 232, 240, 0.8) 50%, 
+      transparent 100%);
+  }
+
+  .dark .modal-enhanced {
+    background: rgba(0, 0, 0, 0.95);
+    border-color: rgba(42, 42, 42, 0.7);
+    box-shadow: 
+      0 50px 100px rgba(0, 0, 0, 0.5),
+      inset 0 2px 0 rgba(255, 255, 255, 0.05);
+  }
+
+  /* Enhanced Status Badges */
+  .status-badge-enhanced {
+    display: inline-flex;
+    align-items: center;
+    padding: 0.5rem 1rem;
+    font-size: 0.75rem;
+    font-weight: 700;
+    border-radius: 9999px;
+    text-transform: uppercase;
+    letter-spacing: 0.05em;
+    border: 1px solid transparent;
+    transition: all 0.2s ease;
+    position: relative;
+    overflow: hidden;
+  }
+
+  .status-badge-enhanced::before {
+    content: '';
+    position: absolute;
+    top: 0;
+    left: -100%;
+    width: 100%;
+    height: 100%;
+    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
+    transition: left 0.5s ease;
+  }
+
+  .status-badge-enhanced:hover::before {
+    left: 100%;
+  }
+
+  .status-online-enhanced {
+    background: linear-gradient(135deg, #ecfdf5 0%, #a7f3d0 100%);
+    color: #065f46;
+    border-color: rgba(16, 185, 129, 0.3);
+  }
+
+  .status-offline-enhanced {
+    background: linear-gradient(135deg, #fef2f2 0%, #fca5a5 100%);
+    color: #991b1b;
+    border-color: rgba(239, 68, 68, 0.3);
+  }
+
+  .status-printing-enhanced {
+    background: linear-gradient(135deg, #eff6ff 0%, #bfdbfe 100%);
+    color: #1e40af;
+    border-color: rgba(59, 130, 246, 0.3);
+  }
+
+  /* Dark Mode Toggle - Premium Design */
+  .dark-mode-toggle-new {
+    position: relative;
+    display: flex;
+    cursor: pointer;
+    align-items: center;
+    justify-content: center;
+    border-radius: 9999px;
+    padding: 0.625rem;
+    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
+    background: linear-gradient(135deg, 
+      rgba(248, 250, 252, 0.9) 0%, 
+      rgba(241, 245, 249, 0.8) 100%);
+    border: 1px solid rgba(226, 232, 240, 0.7);
+    box-shadow: 
+      0 4px 12px rgba(0, 0, 0, 0.06),
+      0 2px 4px rgba(0, 115, 206, 0.04),
+      inset 0 1px 0 rgba(255, 255, 255, 0.8);
+    color: var(--color-text-secondary);
+    z-index: 100;
+  }
+
+  .dark-mode-toggle-new:hover {
+    transform: translateY(-2px) scale(1.05);
+    background: linear-gradient(135deg, 
+      rgba(248, 250, 252, 0.95) 0%, 
+      rgba(241, 245, 249, 0.85) 100%);
+    box-shadow: 
+      0 8px 20px rgba(0, 0, 0, 0.1),
+      0 4px 8px rgba(0, 115, 206, 0.08),
+      inset 0 1px 0 rgba(255, 255, 255, 0.9);
+  }
+
+  .dark-mode-toggle-new:active {
+    transform: translateY(-1px) scale(0.98);
+    transition: transform 0.1s;
+  }
+
+  .dark .dark-mode-toggle-new {
+    background: rgba(10, 10, 10, 0.8);
+    border: 1px solid rgba(42, 42, 42, 0.6);
+    box-shadow: 
+      0 4px 12px rgba(0, 0, 0, 0.3),
+      inset 0 1px 0 rgba(255, 255, 255, 0.05);
+    color: var(--color-text-secondary);
+  }
+
+  .dark .dark-mode-toggle-new:hover {
+    background: rgba(10, 10, 10, 0.9);
+    box-shadow: 
+      0 8px 20px rgba(0, 0, 0, 0.4),
+      inset 0 1px 0 rgba(255, 255, 255, 0.08);
+  }
+
+  /* Icon-Animation für Dark Mode Toggle */
+  .dark-mode-toggle-new .sun-icon,
+  .dark-mode-toggle-new .moon-icon {
+    position: absolute;
+    top: 50%;
+    left: 50%;
+    transform: translate(-50%, -50%);
+    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
+  }
+
+  .dark-mode-toggle-new .sun-icon:not(.hidden) {
+    animation: icon-appear 0.5s cubic-bezier(0.25, 1, 0.5, 1) forwards;
+  }
+
+  .dark-mode-toggle-new .moon-icon:not(.hidden) {
+    animation: icon-appear 0.5s cubic-bezier(0.25, 1, 0.5, 1) forwards;
+  }
+
+  @keyframes icon-appear {
+    0% {
+      opacity: 0;
+      transform: translate(-50%, -50%) scale(0.5) rotate(-20deg);
+    }
+    100% {
+      opacity: 1;
+      transform: translate(-50%, -50%) scale(1) rotate(0);
+    }
+  }
+
+  .dark .sun-icon { display: none; }
+  .dark .moon-icon { display: block; }
+  .sun-icon { display: block; }
+  .moon-icon { display: none; }
+
+  /* User Menu Button - Premium Design */
+  .user-menu-button-new {
+    display: flex;
+    align-items: center;
+    gap: 0.5rem;
+    border-radius: 0.75rem;
+    padding: 0.5rem;
+    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
+    background: linear-gradient(135deg, 
+      rgba(248, 250, 252, 0.8) 0%, 
+      rgba(241, 245, 249, 0.7) 100%);
+    border: 1px solid rgba(226, 232, 240, 0.6);
+    box-shadow: 
+      0 2px 8px rgba(0, 0, 0, 0.05),
+      inset 0 1px 0 rgba(255, 255, 255, 0.7);
+  }
+
+  .user-menu-button-new:hover {
+    transform: translateY(-1px);
+    background: linear-gradient(135deg, 
+      rgba(248, 250, 252, 0.9) 0%, 
+      rgba(241, 245, 249, 0.8) 100%);
+    box-shadow: 
+      0 4px 12px rgba(0, 0, 0, 0.08),
+      0 2px 4px rgba(0, 115, 206, 0.04),
+      inset 0 1px 0 rgba(255, 255, 255, 0.8);
+  }
+
+  .dark .user-menu-button-new {
+    background: rgba(10, 10, 10, 0.7);
+    border-color: rgba(42, 42, 42, 0.6);
+    box-shadow: 
+      0 2px 8px rgba(0, 0, 0, 0.2),
+      inset 0 1px 0 rgba(255, 255, 255, 0.03);
+  }
+
+  .dark .user-menu-button-new:hover {
+    background: rgba(10, 10, 10, 0.8);
+    box-shadow: 
+      0 4px 12px rgba(0, 0, 0, 0.3),
+      inset 0 1px 0 rgba(255, 255, 255, 0.05);
+  }
+
+  /* Enhanced Hover Effects */
+  .hover-lift-enhanced {
+    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
+  }
+
+  .hover-lift-enhanced:hover {
+    transform: translateY(-3px) scale(1.01);
+    box-shadow: 
+      0 12px 30px var(--color-shadow-strong),
+      0 6px 15px var(--color-shadow-accent);
+  }
+
+  .dark .hover-lift-enhanced:hover {
+    box-shadow: 0 12px 30px var(--color-shadow);
+  }
+
+  /* Smooth Scrollbar for Light Mode */
+  ::-webkit-scrollbar {
+    width: 8px;
+    height: 8px;
+  }
+
+  ::-webkit-scrollbar-track {
+    background: var(--color-bg-secondary);
+    border-radius: 4px;
+  }
+
+  ::-webkit-scrollbar-thumb {
+    background: linear-gradient(180deg, 
+      var(--color-border-secondary) 0%, 
+      var(--color-border-primary) 100%);
+    border-radius: 4px;
+    transition: background 0.2s ease;
+  }
+
+  ::-webkit-scrollbar-thumb:hover {
+    background: linear-gradient(180deg, 
+      var(--color-accent) 0%, 
+      var(--color-accent-hover) 100%);
+  }
+
+  .dark ::-webkit-scrollbar-track {
+    background: var(--color-bg-secondary);
+  }
+
+  .dark ::-webkit-scrollbar-thumb {
+    background: var(--color-border-primary);
+  }
+
+  .dark ::-webkit-scrollbar-thumb:hover {
+    background: #60a5fa;
+  }
+
+  /* Loading States */
+  .loading-enhanced {
+    position: relative;
+    overflow: hidden;
+  }
+
+  .loading-enhanced::after {
+    content: '';
+    position: absolute;
+    top: 0;
+    left: -100%;
+    width: 100%;
+    height: 100%;
+    background: linear-gradient(90deg, 
+      transparent, 
+      rgba(0, 115, 206, 0.1), 
+      transparent);
+    animation: loading-shimmer 2s infinite;
+  }
+
+  @keyframes loading-shimmer {
+    0% { left: -100%; }
+    100% { left: 100%; }
+  }
+
+  /* Focus States for Accessibility */
+  .focus-enhanced:focus {
+    outline: 2px solid var(--color-accent);
+    outline-offset: 2px;
+    box-shadow: 
+      0 0 0 4px rgba(0, 115, 206, 0.15),
+      0 4px 12px var(--color-shadow-accent);
+  }
+
+  .dark .focus-enhanced:focus {
+    outline-color: #60a5fa;
+    box-shadow: 
+      0 0 0 4px rgba(96, 165, 250, 0.15),
+      0 4px 12px rgba(96, 165, 250, 0.2);
+  }
+
+  /* Responsive Design Enhancements */
+  @media (max-width: 768px) {
+    .card-enhanced {
+      padding: 1rem;
+      border-radius: 0.75rem;
+    }
+    
+    .btn-enhanced {
+      padding: 0.75rem 1.5rem;
+      font-size: 0.8rem;
+    }
+    
+    .modal-enhanced {
+      border-radius: 1rem;
+      margin: 1rem;
+    }
+    
+    .dark-mode-toggle-new {
+      padding: 0.5rem;
+    }
+  }
+
+  /* Reduced Motion Support */
+  @media (prefers-reduced-motion: reduce) {
+    * {
+      transition: none !important;
+      animation: none !important;
+    }
+  }
+
+  /* High Contrast Mode Support */
+  @media (prefers-contrast: high) {
+    :root {
+      --color-shadow: rgba(0, 0, 0, 0.2);
+      --color-shadow-strong: rgba(0, 0, 0, 0.3);
+      --color-border-primary: #000000;
+    }
+    
+    .dark {
+      --color-border-primary: #ffffff;
+    }
  }
 }

--- a/backend/static/css/tailwind.min.css
+++ b/backend/static/css/tailwind.min.css
--- a/backend/templates/dashboard.html
+++ b/backend/templates/dashboard.html
@ -357,155 +357,6 @@
        </div>
    </div>

-    <!-- Timer Management Section -->
-    <div class="grid grid-cols-1 lg:grid-cols-2 gap-8">
-        <!-- Session Timer -->
-        <div class="dashboard-card p-6">
-            <div class="flex items-center justify-between mb-4">
-                <h2 class="section-title mb-0">Session-Timer</h2>
-                <div class="flex items-center gap-2">
-                    <div class="mb-status-indicator mb-status-idle" id="session-timer-status"></div>
-                    <span class="text-sm text-slate-500 dark:text-slate-400">Gestoppt</span>
-                </div>
-            </div>
-            
-            <!-- Timer Container -->
-            <div id="session-countdown-timer" class="mb-6"></div>
-            
-            <!-- Timer Configuration -->
-            <div class="bg-gray-50 dark:bg-slate-700/30 rounded-lg p-4 mb-4">
-                <h4 class="text-sm font-medium text-slate-900 dark:text-white mb-3">Timer-Einstellungen</h4>
-                <div class="grid grid-cols-1 sm:grid-cols-2 gap-4">
-                    <div>
-                        <label class="block text-xs text-slate-500 dark:text-slate-400 mb-1">Dauer (Minuten)</label>
-                        <select id="session-duration" class="w-full px-3 py-2 text-sm border border-gray-300 dark:border-slate-600 rounded-md bg-white dark:bg-slate-800 text-slate-900 dark:text-white">
-                            <option value="30">30 Minuten</option>
-                            <option value="60">1 Stunde</option>
-                            <option value="120" selected>2 Stunden</option>
-                            <option value="240">4 Stunden</option>
-                            <option value="480">8 Stunden</option>
-                        </select>
-                    </div>
-                    <div>
-                        <label class="block text-xs text-slate-500 dark:text-slate-400 mb-1">Force-Quit Aktion</label>
-                        <select id="session-force-quit" class="w-full px-3 py-2 text-sm border border-gray-300 dark:border-slate-600 rounded-md bg-white dark:bg-slate-800 text-slate-900 dark:text-white">
-                            <option value="logout" selected>Automatisch abmelden</option>
-                            <option value="warning">Nur warnen</option>
-                        </select>
-                    </div>
-                </div>
-                <div class="mt-3">
-                    <label class="block text-xs text-slate-500 dark:text-slate-400 mb-1">Warnung (Sekunden vor Ablauf)</label>
-                    <input type="number" id="session-warning" value="60" min="10" max="300" class="w-full px-3 py-2 text-sm border border-gray-300 dark:border-slate-600 rounded-md bg-white dark:bg-slate-800 text-slate-900 dark:text-white">
-                </div>
-            </div>
-            
-            <!-- Quick Actions -->
-            <div class="flex flex-wrap gap-2">
-                <button id="create-session-timer" class="btn-primary text-sm px-4 py-2">
-                    <svg class="w-4 h-4 mr-2" fill="none" stroke="currentColor" viewBox="0 0 24 24">
-                        <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M12 6v6m0 0v6m0-6h6m-6 0H6" />
-                    </svg>
-                    Timer erstellen
-                </button>
-                <button id="extend-session-5min" class="btn-secondary text-sm px-4 py-2">
-                    <svg class="w-4 h-4 mr-2" fill="none" stroke="currentColor" viewBox="0 0 24 24">
-                        <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M12 8v4l3 3m6-3a9 9 0 11-18 0 9 9 0 0118 0z" />
-                    </svg>
-                    +5 Min
-                </button>
-                <button id="extend-session-15min" class="btn-secondary text-sm px-4 py-2">
-                    +15 Min
-                </button>
-            </div>
-        </div>
-
-        <!-- Kiosk Timer (Admin Only) -->
-        {% if current_user.is_admin %}
-        <div class="dashboard-card p-6">
-            <div class="flex items-center justify-between mb-4">
-                <h2 class="section-title mb-0">Kiosk-Timer</h2>
-                <div class="flex items-center gap-2">
-                    <div class="mb-status-indicator mb-status-idle" id="kiosk-timer-status"></div>
-                    <span class="text-sm text-slate-500 dark:text-slate-400">Inaktiv</span>
-                </div>
-            </div>
-            
-            <!-- Timer Container -->
-            <div id="kiosk-countdown-timer" class="mb-6"></div>
-            
-            <!-- Admin Configuration -->
-            <div class="bg-amber-50 dark:bg-amber-900/20 border border-amber-200 dark:border-amber-800 rounded-lg p-4 mb-4">
-                <div class="flex items-center mb-3">
-                    <svg class="w-5 h-5 text-amber-600 mr-2" fill="none" stroke="currentColor" viewBox="0 0 24 24">
-                        <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M12 9v2m0 4h.01m-6.938 4h13.856c1.54 0 2.502-1.667 1.732-2.5L13.732 4c-.77-.833-1.964-.833-2.732 0L3.732 16.5c-.77.833.192 2.5 1.732 2.5z" />
-                    </svg>
-                    <h4 class="text-sm font-medium text-amber-800 dark:text-amber-200">Administrator-Funktion</h4>
-                </div>
-                <p class="text-xs text-amber-700 dark:text-amber-300 mb-3">Kiosk-Timer gelten systemweit für alle Benutzer und führen bei Ablauf automatische Aktionen aus.</p>
-                
-                <div class="grid grid-cols-1 sm:grid-cols-2 gap-4">
-                    <div>
-                        <label class="block text-xs text-amber-700 dark:text-amber-300 mb-1">Dauer (Minuten)</label>
-                        <select id="kiosk-duration" class="w-full px-3 py-2 text-sm border border-amber-300 dark:border-amber-700 rounded-md bg-white dark:bg-slate-800 text-slate-900 dark:text-white">
-                            <option value="15">15 Minuten</option>
-                            <option value="30" selected>30 Minuten</option>
-                            <option value="60">1 Stunde</option>
-                            <option value="120">2 Stunden</option>
-                        </select>
-                    </div>
-                    <div>
-                        <label class="block text-xs text-amber-700 dark:text-amber-300 mb-1">System-Aktion</label>
-                        <select id="kiosk-action" class="w-full px-3 py-2 text-sm border border-amber-300 dark:border-amber-700 rounded-md bg-white dark:bg-slate-800 text-slate-900 dark:text-white">
-                            <option value="logout" selected>Alle Benutzer abmelden</option>
-                            <option value="restart">System neustarten</option>
-                            <option value="shutdown">System herunterfahren</option>
-                        </select>
-                    </div>
-                </div>
-            </div>
-            
-            <!-- Admin Actions -->
-            <div class="flex flex-wrap gap-2">
-                <button id="create-kiosk-timer" class="btn-warning text-sm px-4 py-2">
-                    <svg class="w-4 h-4 mr-2" fill="none" stroke="currentColor" viewBox="0 0 24 24">
-                        <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M12 15v2m-6 4h12a2 2 0 002-2v-6a2 2 0 00-2-2H6a2 2 0 00-2 2zm10-10V7a4 4 0 00-8 0v4h8z" />
-                    </svg>
-                    Kiosk-Timer starten
-                </button>
-                <button id="stop-kiosk-timer" class="btn-danger text-sm px-4 py-2">
-                    <svg class="w-4 h-4 mr-2" fill="none" stroke="currentColor" viewBox="0 0 24 24">
-                        <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M21 12a9 9 0 11-18 0 9 9 0 0118 0z" />
-                        <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M9 10a1 1 0 011-1h4a1 1 0 011 1v4a1 1 0 01-1 1h-4a1 1 0 01-1-1v-4z" />
-                    </svg>
-                    Stoppen
-                </button>
-                <button id="force-quit-now" class="btn-danger text-sm px-4 py-2">
-                    <svg class="w-4 h-4 mr-2" fill="none" stroke="currentColor" viewBox="0 0 24 24">
-                        <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M12 9v2m0 4h.01m-6.938 4h13.856c1.54 0 2.502-1.667 1.732-2.5L13.732 4c-.77-.833-1.964-.833-2.732 0L3.732 16.5c-.77.833.192 2.5 1.732 2.5z" />
-                    </svg>
-                    Force-Quit jetzt
-                </button>
-            </div>
-        </div>
-        {% else %}
-        <!-- Timer Overview for Non-Admin -->
-        <div class="dashboard-card p-6">
-            <h2 class="section-title">Timer-Übersicht</h2>
-            <div id="timer-overview" class="space-y-4">
-                <!-- Dynamic timer list will be populated here -->
-                <div class="text-center py-8">
-                    <svg class="w-12 h-12 mx-auto mb-3 text-slate-400 dark:text-slate-500" fill="none" stroke="currentColor" viewBox="0 0 24 24">
-                        <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M12 8v4l3 3m6-3a9 9 0 11-18 0 9 9 0 0118 0z" />
-                    </svg>
-                    <p class="text-slate-700 dark:text-slate-300 font-medium mb-1">Keine aktiven Timer</p>
-                    <p class="text-slate-500 dark:text-slate-400 text-sm">Erstellen Sie einen Session-Timer für automatische Verwaltung.</p>
-                </div>
-            </div>
-        </div>
-        {% endif %}
-    </div>
-
    <!-- Active Jobs Section -->
    <div class="dashboard-card p-6">
        <h2 class="section-title">Aktuelle Druckaufträge</h2>
@ -647,7 +498,6 @@
 {% endblock %}

 {% block extra_js %}
-<script src="{{ url_for('static', filename='js/countdown-timer.js') }}"></script>
 <script>
    class DashboardManager {
        constructor() {
@ -1091,512 +941,12 @@
    document.addEventListener('DOMContentLoaded', function() {
        window.dashboardManager = new DashboardManager();
        
-        // Timer-Funktionalität initialisieren
-        initializeTimerControls();
-        
        // Cleanup beim Verlassen
        window.addEventListener('beforeunload', () => {
            if (window.dashboardManager) {
                window.dashboardManager.cleanup();
            }
-            // Timer cleanup
-            if (window.TimerManager) {
-                window.TimerManager.destroyAll();
-            }
        });
    });
-
-    /**
-     * Initialisiert die Timer-Steuerung im Dashboard
-     */
-    function initializeTimerControls() {
-        console.log('🕒 Timer-Steuerung wird initialisiert...');
-        
-        // Session-Timer Ereignisse
-        setupSessionTimerEvents();
-        
-        // Kiosk-Timer Ereignisse (nur für Admins)
-        if (document.getElementById('create-kiosk-timer')) {
-            setupKioskTimerEvents();
-        }
-        
-        // Bestehende Timer laden
-        loadExistingTimers();
-        
-        // Timer-Status regelmäßig aktualisieren
-        setInterval(updateTimerStatus, 5000);
-        
-        console.log('✅ Timer-Steuerung erfolgreich initialisiert');
-    }
-
-    /**
-     * Konfiguriert Session-Timer Ereignisse
-     */
-    function setupSessionTimerEvents() {
-        // Timer erstellen
-        const createBtn = document.getElementById('create-session-timer');
-        if (createBtn) {
-            createBtn.addEventListener('click', async function() {
-                const duration = parseInt(document.getElementById('session-duration').value);
-                const forceQuitAction = document.getElementById('session-force-quit').value;
-                const warningThreshold = parseInt(document.getElementById('session-warning').value);
-                
-                await createSessionTimer(duration, forceQuitAction, warningThreshold);
-            });
-        }
-
-        // Timer verlängern - 5 Minuten
-        const extend5Btn = document.getElementById('extend-session-5min');
-        if (extend5Btn) {
-            extend5Btn.addEventListener('click', async function() {
-                await extendSessionTimer(300); // 5 Minuten = 300 Sekunden
-            });
-        }
-
-        // Timer verlängern - 15 Minuten
-        const extend15Btn = document.getElementById('extend-session-15min');
-        if (extend15Btn) {
-            extend15Btn.addEventListener('click', async function() {
-                await extendSessionTimer(900); // 15 Minuten = 900 Sekunden
-            });
-        }
-    }
-
-    /**
-     * Konfiguriert Kiosk-Timer Ereignisse (Admin)
-     */
-    function setupKioskTimerEvents() {
-        // Kiosk-Timer erstellen
-        const createKioskBtn = document.getElementById('create-kiosk-timer');
-        if (createKioskBtn) {
-            createKioskBtn.addEventListener('click', async function() {
-                const duration = parseInt(document.getElementById('kiosk-duration').value);
-                const action = document.getElementById('kiosk-action').value;
-                
-                await createKioskTimer(duration, action);
-            });
-        }
-
-        // Kiosk-Timer stoppen
-        const stopKioskBtn = document.getElementById('stop-kiosk-timer');
-        if (stopKioskBtn) {
-            stopKioskBtn.addEventListener('click', async function() {
-                await stopKioskTimer();
-            });
-        }
-
-        // Force-Quit sofort ausführen
-        const forceQuitBtn = document.getElementById('force-quit-now');
-        if (forceQuitBtn) {
-            forceQuitBtn.addEventListener('click', async function() {
-                if (confirm('⚠️ Force-Quit wird sofort ausgeführt. Alle Benutzer werden abgemeldet. Fortfahren?')) {
-                    await executeForceQuitNow();
-                }
-            });
-        }
-    }
-
-    /**
-     * Erstellt einen Session-Timer
-     */
-    async function createSessionTimer(durationMinutes, forceQuitAction, warningThreshold) {
-        try {
-            showTimerLoading('session');
-            
-            // API-Aufruf zur Timer-Erstellung
-            const response = await fetch('/api/timers/session/create', {
-                method: 'POST',
-                headers: {
-                    'Content-Type': 'application/json',
-                    'X-CSRFToken': getCSRFToken()
-                },
-                body: JSON.stringify({
-                    duration_minutes: durationMinutes
-                })
-            });
-
-            const result = await response.json();
-            
-            if (result.success) {
-                // Timer-UI erstellen
-                const timer = window.TimerManager.create('session_timer', {
-                    container: 'session-countdown-timer',
-                    duration: durationMinutes * 60,
-                    forceQuitAction: forceQuitAction,
-                    warningThreshold: warningThreshold,
-                    syncWithServer: true,
-                    apiBase: '/api/timers/session_timer_' + getCurrentUserId(),
-                    size: 'medium',
-                    theme: 'primary',
-                    warningMessage: 'Ihre Session läuft ab! Speichern Sie Ihre Arbeit.',
-                    autoStart: true,
-                    
-                    // Callbacks
-                    onTick: (remaining, total) => {
-                        updateTimerStatusIndicator('session', 'running');
-                    },
-                    onWarning: (remaining) => {
-                        showTimerWarning('Session läuft in ' + Math.floor(remaining / 60) + ' Minuten ab!');
-                        updateTimerStatusIndicator('session', 'warning');
-                    },
-                    onExpired: () => {
-                        updateTimerStatusIndicator('session', 'expired');
-                        if (forceQuitAction === 'logout') {
-                            showLogoutWarning();
-                        }
-                    },
-                    onForceQuit: () => {
-                        handleSessionForceQuit(forceQuitAction);
-                    }
-                });
-
-                showTimerSuccess('Session-Timer erfolgreich erstellt und gestartet');
-                updateSessionTimerControls(true);
-                
-            } else {
-                throw new Error(result.error || 'Timer konnte nicht erstellt werden');
-            }
-            
-        } catch (error) {
-            console.error('Fehler beim Erstellen des Session-Timers:', error);
-            showTimerError('Session-Timer konnte nicht erstellt werden: ' + error.message);
-        } finally {
-            hideTimerLoading('session');
-        }
-    }
-
-    /**
-     * Erstellt einen Kiosk-Timer (Admin)
-     */
-    async function createKioskTimer(durationMinutes, action) {
-        try {
-            showTimerLoading('kiosk');
-            
-            const response = await fetch('/api/timers/kiosk/create', {
-                method: 'POST',
-                headers: {
-                    'Content-Type': 'application/json',
-                    'X-CSRFToken': getCSRFToken()
-                },
-                body: JSON.stringify({
-                    duration_minutes: durationMinutes,
-                    auto_start: true
-                })
-            });
-
-            const result = await response.json();
-            
-            if (result.success) {
-                // Kiosk-Timer UI erstellen
-                const timer = window.TimerManager.create('kiosk_timer', {
-                    container: 'kiosk-countdown-timer',
-                    duration: durationMinutes * 60,
-                    forceQuitAction: action,
-                    warningThreshold: 30,
-                    syncWithServer: true,
-                    apiBase: '/api/timers/kiosk_session',
-                    size: 'medium',
-                    theme: 'warning',
-                    warningMessage: '⚠️ Kiosk-Session läuft ab! System wird automatisch ' + getActionText(action) + '.',
-                    autoStart: true,
-                    showControls: true,
-                    
-                    onTick: (remaining, total) => {
-                        updateTimerStatusIndicator('kiosk', 'running');
-                        broadcastKioskTimerUpdate(remaining, total);
-                    },
-                    onWarning: (remaining) => {
-                        showKioskWarning('Kiosk-Timer läuft in ' + Math.floor(remaining / 60) + ' Minuten ab!');
-                        updateTimerStatusIndicator('kiosk', 'warning');
-                    },
-                    onExpired: () => {
-                        updateTimerStatusIndicator('kiosk', 'expired');
-                        executeKioskAction(action);
-                    }
-                });
-
-                showTimerSuccess('Kiosk-Timer erfolgreich gestartet');
-                updateKioskTimerControls(true);
-                
-            } else {
-                throw new Error(result.error || 'Kiosk-Timer konnte nicht erstellt werden');
-            }
-            
-        } catch (error) {
-            console.error('Fehler beim Erstellen des Kiosk-Timers:', error);
-            showTimerError('Kiosk-Timer konnte nicht erstellt werden: ' + error.message);
-        } finally {
-            hideTimerLoading('kiosk');
-        }
-    }
-
-    /**
-     * Verlängert Session-Timer
-     */
-    async function extendSessionTimer(additionalSeconds) {
-        try {
-            const timer = window.TimerManager.get('session_timer');
-            if (!timer) {
-                showTimerError('Kein aktiver Session-Timer gefunden');
-                return;
-            }
-
-            const success = await timer.extend(additionalSeconds);
-            if (success) {
-                const minutes = Math.floor(additionalSeconds / 60);
-                showTimerSuccess(`Session-Timer um ${minutes} Minuten verlängert`);
-            }
-            
-        } catch (error) {
-            console.error('Fehler beim Verlängern des Session-Timers:', error);
-            showTimerError('Timer konnte nicht verlängert werden');
-        }
-    }
-
-    /**
-     * Stoppt Kiosk-Timer
-     */
-    async function stopKioskTimer() {
-        try {
-            const timer = window.TimerManager.get('kiosk_timer');
-            if (!timer) {
-                showTimerError('Kein aktiver Kiosk-Timer gefunden');
-                return;
-            }
-
-            const success = await timer.stop();
-            if (success) {
-                showTimerSuccess('Kiosk-Timer gestoppt');
-                updateKioskTimerControls(false);
-                updateTimerStatusIndicator('kiosk', 'stopped');
-            }
-            
-        } catch (error) {
-            console.error('Fehler beim Stoppen des Kiosk-Timers:', error);
-            showTimerError('Kiosk-Timer konnte nicht gestoppt werden');
-        }
-    }
-
-    /**
-     * Führt Force-Quit sofort aus
-     */
-    async function executeForceQuitNow() {
-        try {
-            const response = await fetch('/api/timers/kiosk_session/force-quit', {
-                method: 'POST',
-                headers: {
-                    'Content-Type': 'application/json',
-                    'X-CSRFToken': getCSRFToken()
-                }
-            });
-
-            const result = await response.json();
-            
-            if (result.success) {
-                showTimerSuccess('Force-Quit wird ausgeführt...');
-                
-                // Je nach Aktion unterschiedlich behandeln
-                if (result.action === 'logout') {
-                    setTimeout(() => {
-                        window.location.href = result.redirect_url || '/login';
-                    }, 2000);
-                } else {
-                    showTimerSuccess('Force-Quit-Aktion ausgeführt: ' + result.action);
-                }
-            } else {
-                throw new Error(result.error || 'Force-Quit fehlgeschlagen');
-            }
-            
-        } catch (error) {
-            console.error('Fehler beim Force-Quit:', error);
-            showTimerError('Force-Quit konnte nicht ausgeführt werden');
-        }
-    }
-
-    /**
-     * Lädt bestehende Timer beim Seitenaufruf
-     */
-    async function loadExistingTimers() {
-        try {
-            const response = await fetch('/api/timers');
-            const result = await response.json();
-            
-            if (result.success && result.data) {
-                result.data.forEach(timerData => {
-                    if (timerData.status === 'running') {
-                        recreateTimerFromData(timerData);
-                    }
-                });
-            }
-            
-        } catch (error) {
-            console.error('Fehler beim Laden bestehender Timer:', error);
-        }
-    }
-
-    /**
-     * Recreiert Timer aus Server-Daten
-     */
-    function recreateTimerFromData(timerData) {
-        const isSessionTimer = timerData.timer_type === 'session';
-        const isKioskTimer = timerData.timer_type === 'kiosk';
-        
-        if (isSessionTimer && timerData.context_id === getCurrentUserId()) {
-            // Session-Timer für aktuellen Benutzer recreieren
-            const timer = window.TimerManager.create('session_timer', {
-                container: 'session-countdown-timer',
-                duration: timerData.duration_seconds,
-                remaining: timerData.remaining_seconds,
-                forceQuitAction: timerData.force_quit_action,
-                warningThreshold: timerData.force_quit_warning_seconds,
-                syncWithServer: true,
-                autoStart: false, // Läuft bereits
-                size: 'medium',
-                theme: 'primary'
-            });
-            
-            updateTimerStatusIndicator('session', 'running');
-            updateSessionTimerControls(true);
-            
-        } else if (isKioskTimer && isCurrentUserAdmin()) {
-            // Kiosk-Timer für Admin recreieren
-            const timer = window.TimerManager.create('kiosk_timer', {
-                container: 'kiosk-countdown-timer',
-                duration: timerData.duration_seconds,
-                remaining: timerData.remaining_seconds,
-                forceQuitAction: timerData.force_quit_action,
-                warningThreshold: timerData.force_quit_warning_seconds,
-                syncWithServer: true,
-                autoStart: false, // Läuft bereits
-                size: 'medium',
-                theme: 'warning'
-            });
-            
-            updateTimerStatusIndicator('kiosk', 'running');
-            updateKioskTimerControls(true);
-        }
-    }
-
-    /**
-     * Aktualisiert Timer-Status regelmäßig
-     */
-    async function updateTimerStatus() {
-        // Implementierung für regelmäßige Status-Updates
-        const sessionTimer = window.TimerManager.get('session_timer');
-        const kioskTimer = window.TimerManager.get('kiosk_timer');
-        
-        if (sessionTimer && sessionTimer.config.syncWithServer) {
-            sessionTimer.syncWithServer();
-        }
-        
-        if (kioskTimer && kioskTimer.config.syncWithServer) {
-            kioskTimer.syncWithServer();
-        }
-    }
-
-    // Hilfsfunktionen
-    function updateTimerStatusIndicator(timerType, status) {
-        const indicator = document.getElementById(`${timerType}-timer-status`);
-        const statusText = indicator?.nextElementSibling;
-        
-        if (indicator) {
-            indicator.className = `mb-status-indicator ${getTimerStatusClass(status)}`;
-        }
-        
-        if (statusText) {
-            statusText.textContent = getTimerStatusText(status);
-        }
-    }
-
-    function getTimerStatusClass(status) {
-        const classes = {
-            'running': 'mb-status-busy',
-            'stopped': 'mb-status-idle',
-            'warning': 'mb-status-busy',
-            'expired': 'mb-status-offline'
-        };
-        return classes[status] || 'mb-status-idle';
-    }
-
-    function getTimerStatusText(status) {
-        const texts = {
-            'running': 'Läuft',
-            'stopped': 'Gestoppt',
-            'warning': 'Warnung',
-            'expired': 'Abgelaufen'
-        };
-        return texts[status] || 'Unbekannt';
-    }
-
-    function updateSessionTimerControls(active) {
-        const createBtn = document.getElementById('create-session-timer');
-        const extendBtns = [
-            document.getElementById('extend-session-5min'),
-            document.getElementById('extend-session-15min')
-        ];
-        
-        if (createBtn) createBtn.disabled = active;
-        extendBtns.forEach(btn => {
-            if (btn) btn.disabled = !active;
-        });
-    }
-
-    function updateKioskTimerControls(active) {
-        const createBtn = document.getElementById('create-kiosk-timer');
-        const stopBtn = document.getElementById('stop-kiosk-timer');
-        const forceQuitBtn = document.getElementById('force-quit-now');
-        
-        if (createBtn) createBtn.disabled = active;
-        if (stopBtn) stopBtn.disabled = !active;
-        if (forceQuitBtn) forceQuitBtn.disabled = !active;
-    }
-
-    function showTimerLoading(timerType) {
-        // Implementierung für Loading-Anzeige
-    }
-
-    function hideTimerLoading(timerType) {
-        // Implementierung für Loading-Anzeige ausblenden
-    }
-
-    function showTimerSuccess(message) {
-        if (window.dashboardManager) {
-            window.dashboardManager.showToast(message, 'success');
-        }
-    }
-
-    function showTimerError(message) {
-        if (window.dashboardManager) {
-            window.dashboardManager.showToast(message, 'error');
-        }
-    }
-
-    function showTimerWarning(message) {
-        if (window.dashboardManager) {
-            window.dashboardManager.showToast(message, 'warning');
-        }
-    }
-
-    function getActionText(action) {
-        const actions = {
-            'logout': 'abgemeldet',
-            'restart': 'neugestartet',
-            'shutdown': 'heruntergefahren'
-        };
-        return actions[action] || action;
-    }
-
-    function getCurrentUserId() {
-        return {{ current_user.id }};
-    }
-
-    function isCurrentUserAdmin() {
-        return {{ 'true' if current_user.is_admin else 'false' }};
-    }
-
-    function getCSRFToken() {
-        const token = document.querySelector('meta[name="csrf-token"]');
-        return token ? token.getAttribute('content') : '';
-    }
 </script>
 {% endblock %} 
--- a/backend/utils/pycache/ssl_config.cpython-313.pyc
+++ b/backend/utils/pycache/ssl_config.cpython-313.pyc
--- a/backend/utils/pycache/timeout_force_quit_manager.cpython-313.pyc
+++ b/backend/utils/pycache/timeout_force_quit_manager.cpython-313.pyc
--- a/backend/utils/pycache/timer_manager.cpython-313.pyc
+++ b/backend/utils/pycache/timer_manager.cpython-313.pyc
--- a/backend/utils/timeout_force_quit_manager.py
+++ b/backend/utils/timeout_force_quit_manager.py
@ -0,0 +1,647 @@
+#!/usr/bin/env python3
+"""
+Timeout Force-Quit Manager mit Terminal-Countdown
+
+Spezialiserter Manager für Force-Quit-Timeouts mit visueller Terminal-Anzeige
+und robuster Datenbankbereinigung (WAL/SHM-Dateien).
+
+Funktionen:
+- Terminal-Countdown mit Fortschrittsbalken
+- Automatische Datenbankbereinigung
+- Force-Quit bei Timeout
+- Integration mit bestehendem Timer-System
+- Robuste WAL/SHM-Dateibereinigung
+
+Autor: System
+Erstellt: 2025
+"""
+
+import os
+import sys
+import threading
+import time
+import signal
+import shutil
+from datetime import datetime, timedelta
+from typing import Optional, Callable, Dict, Any
+from contextlib import contextmanager
+
+# Logging
+try:
+    from utils.logging_config import get_logger
+    logger = get_logger("timeout_force_quit")
+except ImportError:
+    import logging
+    logger = logging.getLogger("timeout_force_quit")
+    logging.basicConfig(level=logging.INFO)
+
+# Timer-System Integration
+try:
+    from utils.timer_manager import (
+        get_timer_manager, TimerType, ForceQuitAction, TimerStatus
+    )
+    from models import SystemTimer, get_cached_session
+    TIMER_SYSTEM_AVAILABLE = True
+except ImportError:
+    logger.warning("Timer-System nicht verfügbar - verwende Fallback-Implementation")
+    TIMER_SYSTEM_AVAILABLE = False
+
+# Datenbank-Cleanup
+try:
+    from utils.database_cleanup import safe_database_cleanup
+    DATABASE_CLEANUP_AVAILABLE = True
+except ImportError:
+    logger.warning("Database-Cleanup-Manager nicht verfügbar - verwende Basis-Cleanup")
+    DATABASE_CLEANUP_AVAILABLE = False
+
+
+class TimeoutForceQuitManager:
+    """
+    Manager für Timeout-basierte Force-Quit-Operationen mit Terminal-Countdown.
+    
+    Bietet:
+    - Visueller Terminal-Countdown
+    - Automatische Datenbankbereinigung
+    - Robuste WAL/SHM-Dateibereinigung
+    - Konfigurierbare Timeout-Aktionen
+    """
+    
+    def __init__(self, 
+                 timeout_seconds: int = 45,
+                 warning_seconds: int = 15,
+                 database_cleanup: bool = True,
+                 force_wal_cleanup: bool = True):
+        """
+        Initialisiert den Timeout Force-Quit Manager.
+        
+        Args:
+            timeout_seconds: Gesamttimeout in Sekunden
+            warning_seconds: Warnzeit vor Force-Quit in Sekunden
+            database_cleanup: Datenbankbereinigung aktivieren
+            force_wal_cleanup: Aggressive WAL/SHM-Bereinigung
+        """
+        self.timeout_seconds = timeout_seconds
+        self.warning_seconds = warning_seconds
+        self.database_cleanup = database_cleanup
+        self.force_wal_cleanup = force_wal_cleanup
+        
+        # Countdown-Status
+        self.is_active = False
+        self.start_time = None
+        self.timer_thread = None
+        self.countdown_thread = None
+        self.shutdown_callback: Optional[Callable] = None
+        
+        # Terminal-Kontrolle
+        self.show_terminal_countdown = True
+        self.terminal_lock = threading.Lock()
+        
+        logger.info(f"🔧 Timeout Force-Quit Manager initialisiert - Timeout: {timeout_seconds}s, Warnung: {warning_seconds}s")
+    
+    def set_shutdown_callback(self, callback: Callable):
+        """Setzt eine Callback-Funktion für den Shutdown"""
+        self.shutdown_callback = callback
+        logger.debug("Shutdown-Callback registriert")
+    
+    def start_timeout(self, reason: str = "System-Timeout") -> bool:
+        """
+        Startet den Timeout-Countdown.
+        
+        Args:
+            reason: Grund für den Timeout
+            
+        Returns:
+            bool: True wenn erfolgreich gestartet
+        """
+        if self.is_active:
+            logger.warning("Timeout bereits aktiv")
+            return False
+        
+        try:
+            self.is_active = True
+            self.start_time = datetime.now()
+            
+            logger.warning(f"🚨 TIMEOUT GESTARTET - {reason}")
+            logger.warning(f"⏱️ Force-Quit in {self.timeout_seconds} Sekunden")
+            
+            # Timer für Force-Quit
+            self.timer_thread = threading.Thread(
+                target=self._timeout_worker,
+                args=(reason,),
+                name="TimeoutForceQuit-Timer",
+                daemon=True
+            )
+            self.timer_thread.start()
+            
+            # Terminal-Countdown (nur wenn stdout verfügbar)
+            if self.show_terminal_countdown and sys.stdout.isatty():
+                self.countdown_thread = threading.Thread(
+                    target=self._terminal_countdown_worker,
+                    name="TimeoutForceQuit-Countdown",
+                    daemon=True
+                )
+                self.countdown_thread.start()
+            
+            # Integration mit Timer-System falls verfügbar
+            if TIMER_SYSTEM_AVAILABLE:
+                self._create_system_timer(reason)
+            
+            return True
+            
+        except Exception as e:
+            logger.error(f"❌ Fehler beim Starten des Timeouts: {e}")
+            self.is_active = False
+            return False
+    
+    def cancel_timeout(self) -> bool:
+        """
+        Bricht den laufenden Timeout ab.
+        
+        Returns:
+            bool: True wenn erfolgreich abgebrochen
+        """
+        if not self.is_active:
+            return False
+        
+        try:
+            self.is_active = False
+            
+            logger.info("✅ Timeout abgebrochen")
+            
+            # Terminal-Ausgabe löschen
+            if self.show_terminal_countdown and sys.stdout.isatty():
+                with self.terminal_lock:
+                    print("\r" + " " * 80 + "\r", end="", flush=True)
+                    print("✅ Timeout abgebrochen")
+            
+            return True
+            
+        except Exception as e:
+            logger.error(f"❌ Fehler beim Abbrechen des Timeouts: {e}")
+            return False
+    
+    def extend_timeout(self, additional_seconds: int) -> bool:
+        """
+        Verlängert den laufenden Timeout.
+        
+        Args:
+            additional_seconds: Zusätzliche Sekunden
+            
+        Returns:
+            bool: True wenn erfolgreich verlängert
+        """
+        if not self.is_active:
+            logger.warning("Kein aktiver Timeout zum Verlängern")
+            return False
+        
+        try:
+            self.timeout_seconds += additional_seconds
+            logger.info(f"⏰ Timeout um {additional_seconds} Sekunden verlängert")
+            return True
+            
+        except Exception as e:
+            logger.error(f"❌ Fehler beim Verlängern des Timeouts: {e}")
+            return False
+    
+    def _timeout_worker(self, reason: str):
+        """Worker-Thread für den eigentlichen Timeout"""
+        try:
+            # Warte bis zum Timeout
+            time.sleep(self.timeout_seconds)
+            
+            if self.is_active:
+                logger.critical(f"🚨 FORCE-QUIT TIMEOUT ERREICHT - {reason}")
+                self._execute_force_quit()
+            
+        except Exception as e:
+            logger.error(f"❌ Fehler im Timeout-Worker: {e}")
+    
+    def _terminal_countdown_worker(self):
+        """Worker-Thread für den visuellen Terminal-Countdown"""
+        try:
+            while self.is_active:
+                elapsed = (datetime.now() - self.start_time).total_seconds()
+                remaining = max(0, self.timeout_seconds - elapsed)
+                
+                if remaining <= 0:
+                    break
+                
+                # Fortschrittsbalken und Countdown
+                progress = 1.0 - (remaining / self.timeout_seconds)
+                bar_width = 40
+                filled_width = int(bar_width * progress)
+                
+                # Warnung-Status
+                is_warning = remaining <= self.warning_seconds
+                warning_icon = "🚨" if is_warning else "⏳"
+                
+                # Terminal-Ausgabe mit Lock
+                with self.terminal_lock:
+                    bar = "█" * filled_width + "░" * (bar_width - filled_width)
+                    countdown_text = (
+                        f"\r{warning_icon} FORCE-QUIT in: {int(remaining):3d}s "
+                        f"[{bar}] {progress*100:6.1f}% "
+                    )
+                    print(countdown_text, end="", flush=True)
+                
+                # Warnung ausgeben
+                if is_warning and int(remaining) % 5 == 0:
+                    logger.warning(f"⚠️ WARNUNG: Force-Quit in {int(remaining)} Sekunden!")
+                
+                time.sleep(0.1)  # 100ms Update-Intervall
+            
+            # Letzte Ausgabe
+            if self.is_active:
+                with self.terminal_lock:
+                    print("\r🚨 FORCE-QUIT WIRD AUSGEFÜHRT!" + " " * 30, flush=True)
+            
+        except Exception as e:
+            logger.error(f"❌ Fehler im Terminal-Countdown: {e}")
+    
+    def _create_system_timer(self, reason: str):
+        """Erstellt einen System-Timer für Integration mit bestehendem Timer-System"""
+        try:
+            timer_manager = get_timer_manager()
+            
+            timer_name = f"force_quit_{int(time.time())}"
+            
+            timer = timer_manager.create_timer(
+                name=timer_name,
+                timer_type=TimerType.SYSTEM,
+                duration_seconds=self.timeout_seconds,
+                force_quit_action=ForceQuitAction.SHUTDOWN,
+                auto_start=True,
+                warning_message=f"Force-Quit wegen: {reason}",
+                force_quit_warning_seconds=self.warning_seconds
+            )
+            
+            if timer:
+                logger.debug(f"System-Timer '{timer_name}' erstellt")
+            
+        except Exception as e:
+            logger.warning(f"System-Timer konnte nicht erstellt werden: {e}")
+    
+    def _execute_force_quit(self):
+        """Führt den Force-Quit aus"""
+        try:
+            logger.critical("🚨 FORCE-QUIT WIRD AUSGEFÜHRT")
+            
+            # Terminal-Ausgabe stoppen
+            self.is_active = False
+            
+            if self.show_terminal_countdown and sys.stdout.isatty():
+                with self.terminal_lock:
+                    print("\r🚨 FORCE-QUIT AKTIV - DATENBANKBEREINIGUNG..." + " " * 20, flush=True)
+            
+            # 1. Shutdown-Callback ausführen (falls gesetzt)
+            if self.shutdown_callback:
+                try:
+                    logger.info("📞 Führe Shutdown-Callback aus...")
+                    self.shutdown_callback()
+                except Exception as e:
+                    logger.error(f"❌ Fehler im Shutdown-Callback: {e}")
+            
+            # 2. Datenbankbereinigung
+            if self.database_cleanup:
+                self._perform_database_cleanup()
+            
+            # 3. System beenden
+            logger.critical("💀 FORCE-QUIT ABGESCHLOSSEN - SYSTEM WIRD BEENDET")
+            
+            if self.show_terminal_countdown and sys.stdout.isatty():
+                with self.terminal_lock:
+                    print("💀 FORCE-QUIT ABGESCHLOSSEN", flush=True)
+            
+            # Kurze Verzögerung für Log-Ausgabe
+            time.sleep(1)
+            
+            # System beenden
+            os._exit(1)
+            
+        except Exception as e:
+            logger.critical(f"❌ KRITISCHER FEHLER IM FORCE-QUIT: {e}")
+            # Notfall-Exit
+            os._exit(1)
+    
+    def _perform_database_cleanup(self):
+        """Führt robuste Datenbankbereinigung durch"""
+        try:
+            logger.info("💾 Starte Datenbankbereinigung...")
+            
+            if self.show_terminal_countdown and sys.stdout.isatty():
+                with self.terminal_lock:
+                    print("\r💾 Datenbankbereinigung läuft..." + " " * 30, flush=True)
+            
+            # 1. Verwende modernen DatabaseCleanupManager falls verfügbar
+            if DATABASE_CLEANUP_AVAILABLE:
+                logger.info("🔧 Verwende DatabaseCleanupManager...")
+                result = safe_database_cleanup(
+                    force_mode_switch=True,  # Aggressive Bereinigung
+                    max_cleanup_time=10      # 10 Sekunden Maximum
+                )
+                
+                if result.get("success", False):
+                    logger.info(f"✅ Database-Cleanup erfolgreich: {', '.join(result.get('operations', []))}")
+                else:
+                    logger.warning(f"⚠️ Database-Cleanup mit Problemen: {', '.join(result.get('errors', []))}")
+                    # Fallback verwenden
+                    self._fallback_database_cleanup()
+            else:
+                # 2. Fallback: Direkter SQLite-Cleanup
+                self._fallback_database_cleanup()
+            
+            # 3. WAL/SHM-Dateien manuell bereinigen falls gewünscht
+            if self.force_wal_cleanup:
+                self._force_wal_shm_cleanup()
+            
+            logger.info("✅ Datenbankbereinigung abgeschlossen")
+            
+        except Exception as e:
+            logger.error(f"❌ Fehler bei Datenbankbereinigung: {e}")
+            # Versuche trotzdem WAL/SHM-Cleanup
+            if self.force_wal_cleanup:
+                try:
+                    self._force_wal_shm_cleanup()
+                except:
+                    pass
+    
+    def _fallback_database_cleanup(self):
+        """Fallback-Datenbankbereinigung mit direkten SQLite-Befehlen"""
+        try:
+            from models import create_optimized_engine
+            from sqlalchemy import text
+            
+            logger.info("🔄 Fallback Database-Cleanup...")
+            
+            engine = create_optimized_engine()
+            
+            with engine.connect() as conn:
+                # WAL-Checkpoint (TRUNCATE für vollständige Bereinigung)
+                result = conn.execute(text("PRAGMA wal_checkpoint(TRUNCATE)")).fetchone()
+                if result and result[1] > 0:
+                    logger.info(f"WAL-Checkpoint: {result[1]} Seiten übertragen")
+                
+                # Alle ausstehenden Transaktionen committen
+                conn.commit()
+                
+                # Verbindung optimieren
+                conn.execute(text("PRAGMA optimize"))
+                
+                logger.info("✅ Fallback Database-Cleanup abgeschlossen")
+            
+            # Engine ordnungsgemäß schließen
+            engine.dispose()
+            
+        except Exception as e:
+            logger.error(f"❌ Fehler im Fallback Database-Cleanup: {e}")
+    
+    def _force_wal_shm_cleanup(self):
+        """Aggressive Bereinigung von WAL/SHM-Dateien"""
+        try:
+            from config.settings import DATABASE_PATH
+            
+            logger.info("🧹 Force WAL/SHM-Cleanup...")
+            
+            if self.show_terminal_countdown and sys.stdout.isatty():
+                with self.terminal_lock:
+                    print("\r🧹 WAL/SHM-Dateien werden bereinigt..." + " " * 20, flush=True)
+            
+            # Kurze Pause um sicherzustellen, dass alle DB-Verbindungen geschlossen sind
+            time.sleep(0.5)
+            
+            # WAL-Datei
+            wal_path = DATABASE_PATH + "-wal"
+            if os.path.exists(wal_path):
+                try:
+                    # Versuche erst normales Löschen
+                    os.remove(wal_path)
+                    logger.info(f"✅ WAL-Datei gelöscht: {wal_path}")
+                except OSError:
+                    # Falls blockiert, versuche Umbenennung und Löschung
+                    try:
+                        backup_path = wal_path + f".backup_{int(time.time())}"
+                        shutil.move(wal_path, backup_path)
+                        os.remove(backup_path)
+                        logger.info(f"✅ WAL-Datei über Backup gelöscht: {wal_path}")
+                    except Exception as e:
+                        logger.warning(f"⚠️ WAL-Datei konnte nicht gelöscht werden: {e}")
+            
+            # SHM-Datei
+            shm_path = DATABASE_PATH + "-shm"
+            if os.path.exists(shm_path):
+                try:
+                    os.remove(shm_path)
+                    logger.info(f"✅ SHM-Datei gelöscht: {shm_path}")
+                except OSError:
+                    try:
+                        backup_path = shm_path + f".backup_{int(time.time())}"
+                        shutil.move(shm_path, backup_path)
+                        os.remove(backup_path)
+                        logger.info(f"✅ SHM-Datei über Backup gelöscht: {shm_path}")
+                    except Exception as e:
+                        logger.warning(f"⚠️ SHM-Datei konnte nicht gelöscht werden: {e}")
+            
+            logger.info("✅ Force WAL/SHM-Cleanup abgeschlossen")
+            
+        except Exception as e:
+            logger.error(f"❌ Fehler bei Force WAL/SHM-Cleanup: {e}")
+    
+    def get_status(self) -> Dict[str, Any]:
+        """Gibt den aktuellen Status zurück"""
+        if not self.is_active:
+            return {
+                "active": False,
+                "remaining_seconds": 0,
+                "progress_percent": 0.0
+            }
+        
+        elapsed = (datetime.now() - self.start_time).total_seconds()
+        remaining = max(0, self.timeout_seconds - elapsed)
+        progress = 1.0 - (remaining / self.timeout_seconds) if self.timeout_seconds > 0 else 1.0
+        
+        return {
+            "active": True,
+            "remaining_seconds": int(remaining),
+            "progress_percent": round(progress * 100, 1),
+            "is_warning": remaining <= self.warning_seconds,
+            "start_time": self.start_time.isoformat() if self.start_time else None
+        }
+
+
+# ===== GLOBALER MANAGER UND UTILITY-FUNKTIONEN =====
+
+_timeout_manager: Optional[TimeoutForceQuitManager] = None
+_manager_lock = threading.Lock()
+
+
+def get_timeout_manager(timeout_seconds: int = 45,
+                       warning_seconds: int = 15,
+                       database_cleanup: bool = True,
+                       force_wal_cleanup: bool = True) -> TimeoutForceQuitManager:
+    """
+    Singleton-Pattern für globalen Timeout-Manager.
+    
+    Args:
+        timeout_seconds: Gesamttimeout in Sekunden
+        warning_seconds: Warnzeit vor Force-Quit
+        database_cleanup: Datenbankbereinigung aktivieren
+        force_wal_cleanup: Aggressive WAL/SHM-Bereinigung
+        
+    Returns:
+        TimeoutForceQuitManager: Globaler Timeout-Manager
+    """
+    global _timeout_manager
+    
+    with _manager_lock:
+        if _timeout_manager is None:
+            _timeout_manager = TimeoutForceQuitManager(
+                timeout_seconds=timeout_seconds,
+                warning_seconds=warning_seconds,
+                database_cleanup=database_cleanup,
+                force_wal_cleanup=force_wal_cleanup
+            )
+    
+    return _timeout_manager
+
+
+def start_force_quit_timeout(reason: str = "System-Timeout",
+                           timeout_seconds: int = 45,
+                           warning_seconds: int = 15,
+                           database_cleanup: bool = True,
+                           force_wal_cleanup: bool = True) -> bool:
+    """
+    Startet einen Force-Quit-Timeout mit Terminal-Countdown.
+    
+    Args:
+        reason: Grund für den Timeout
+        timeout_seconds: Gesamttimeout in Sekunden
+        warning_seconds: Warnzeit vor Force-Quit
+        database_cleanup: Datenbankbereinigung aktivieren
+        force_wal_cleanup: Aggressive WAL/SHM-Bereinigung
+        
+    Returns:
+        bool: True wenn erfolgreich gestartet
+    """
+    manager = get_timeout_manager(timeout_seconds, warning_seconds, database_cleanup, force_wal_cleanup)
+    return manager.start_timeout(reason)
+
+
+def cancel_force_quit_timeout() -> bool:
+    """
+    Bricht den aktuellen Force-Quit-Timeout ab.
+    
+    Returns:
+        bool: True wenn erfolgreich abgebrochen
+    """
+    global _timeout_manager
+    
+    if _timeout_manager:
+        return _timeout_manager.cancel_timeout()
+    
+    return False
+
+
+def extend_force_quit_timeout(additional_seconds: int) -> bool:
+    """
+    Verlängert den aktuellen Force-Quit-Timeout.
+    
+    Args:
+        additional_seconds: Zusätzliche Sekunden
+        
+    Returns:
+        bool: True wenn erfolgreich verlängert
+    """
+    global _timeout_manager
+    
+    if _timeout_manager:
+        return _timeout_manager.extend_timeout(additional_seconds)
+    
+    return False
+
+
+def get_force_quit_status() -> Dict[str, Any]:
+    """
+    Gibt den Status des aktuellen Force-Quit-Timeouts zurück.
+    
+    Returns:
+        Dict: Status-Informationen
+    """
+    global _timeout_manager
+    
+    if _timeout_manager:
+        return _timeout_manager.get_status()
+    
+    return {"active": False, "remaining_seconds": 0, "progress_percent": 0.0}
+
+
+@contextmanager
+def timeout_context(timeout_seconds: int = 45, 
+                   reason: str = "Operation-Timeout",
+                   auto_cancel: bool = True):
+    """
+    Context-Manager für automatischen Timeout-Schutz.
+    
+    Args:
+        timeout_seconds: Timeout in Sekunden
+        reason: Grund für den Timeout
+        auto_cancel: Automatisch abbrechen beim Verlassen des Contexts
+        
+    Usage:
+        with timeout_context(30, "Datenbank-Migration"):
+            # Lange Operation...
+            pass
+    """
+    manager = get_timeout_manager(timeout_seconds)
+    success = manager.start_timeout(reason)
+    
+    try:
+        yield manager
+    finally:
+        if success and auto_cancel:
+            manager.cancel_timeout()
+
+
+def register_shutdown_callback(callback: Callable):
+    """
+    Registriert eine Callback-Funktion für den Shutdown.
+    
+    Args:
+        callback: Callback-Funktion die beim Shutdown ausgeführt wird
+    """
+    manager = get_timeout_manager()
+    manager.set_shutdown_callback(callback)
+
+
+# ===== INTEGRATION MIT SHUTDOWN-MANAGER =====
+
+def integrate_with_shutdown_manager():
+    """Integriert den Timeout-Manager mit dem bestehenden Shutdown-Manager"""
+    try:
+        from utils.shutdown_manager import get_shutdown_manager
+        
+        shutdown_manager = get_shutdown_manager()
+        
+        # Force-Quit-Timeout als Cleanup-Funktion registrieren
+        def timeout_cleanup():
+            global _timeout_manager
+            if _timeout_manager and _timeout_manager.is_active:
+                logger.info("🔄 Timeout-Manager wird im Shutdown-Prozess gestoppt")
+                _timeout_manager.cancel_timeout()
+        
+        shutdown_manager.register_cleanup_function(
+            func=timeout_cleanup,
+            name="Timeout Force-Quit Manager",
+            priority=1,  # Hohe Priorität
+            timeout=5
+        )
+        
+        logger.debug("✅ Timeout-Manager in Shutdown-Manager integriert")
+        
+    except ImportError:
+        logger.debug("Shutdown-Manager nicht verfügbar - keine Integration")
+    except Exception as e:
+        logger.warning(f"Fehler bei Shutdown-Manager-Integration: {e}")
+
+
+# Automatische Integration beim Import
+integrate_with_shutdown_manager()