feat(helpdesk): align module with core list/drawer standards

- add helpdesk module pages, services, settings and tests

- standardize debtor list on drawer/grid contracts and robust filter drawer behavior

- add helpdesk aside panel navigation and settings visibility provider

- switch primary list slug to helpdesk/debitor and remove helpdesk/search compatibility

- include required core contract updates for list contracts and detail/drawer integration

modules/helpdesk/i18n/default_de.json

@@ -0,0 +1,116 @@
+{
+  "Helpdesk": "Helpdesk",
+  "Helpdesk settings": "Helpdesk-Einstellungen",
+  "Customers": "Kunden",
+  "Debtor search": "Debitorensuche",
+  "Search debtors": "Debitoren suchen",
+  "Search by name or debtor number...": "Suche nach Name oder Debitorennummer...",
+  "Search": "Suchen",
+  "Please provide a customer number": "Bitte geben Sie eine Debitorennummer an",
+  "Minimum 2 characters": "Mindestens 2 Zeichen",
+  "Please enter at least 2 characters.": "Bitte mindestens 2 Zeichen eingeben.",
+  "No debtors found": "Keine Debitoren gefunden",
+  "Try a different search term.": "Versuchen Sie einen anderen Suchbegriff.",
+  "Could not connect to Business Central.": "Verbindung zu Business Central fehlgeschlagen.",
+  "BC connection is not configured.": "BC-Verbindung ist nicht konfiguriert.",
+  "BC connection is not configured. Please configure the connection in the settings.": "BC-Verbindung ist nicht konfiguriert. Bitte konfigurieren Sie die Verbindung in den Einstellungen.",
+  "BC connection is not configured": "BC-Verbindung ist nicht konfiguriert",
+  "Open settings": "Einstellungen öffnen",
+  "Debtor No.": "Debitoren-Nr.",
+  "Name": "Name",
+  "City": "Ort",
+  "Phone": "Telefon",
+  "E-Mail": "E-Mail",
+  "Master data": "Stammdaten",
+  "Contacts": "Ansprechpartner",
+  "Tickets": "Tickets",
+  "Debtor details": "Debitoren-Details",
+  "Search name": "Suchname",
+  "Address": "Adresse",
+  "Postal code": "PLZ",
+  "Salesperson": "Verkäufer",
+  "No contacts found": "Keine Ansprechpartner gefunden",
+  "No contacts are linked to this debtor in Business Central.": "Diesem Debitor sind in Business Central keine Ansprechpartner zugeordnet.",
+  "No.": "Nr.",
+  "Type": "Typ",
+  "Job title": "Position",
+  "No tickets found": "Keine Tickets gefunden",
+  "No tickets are linked to this debtor in Business Central.": "Diesem Debitor sind in Business Central keine Tickets zugeordnet.",
+  "Ticket No.": "Ticket-Nr.",
+  "Description": "Beschreibung",
+  "Status": "Status",
+  "Category": "Kategorie",
+  "Contact": "Kontakt",
+  "Support": "Bearbeiter",
+  "Ticket": "Ticket",
+  "Debtor": "Debitor",
+  "Debtor not found": "Debitor nicht gefunden",
+  "Ticket not found": "Ticket nicht gefunden",
+  "Back to search": "Zurück zur Suche",
+  "Back": "Zurück",
+  "Settings": "Einstellungen",
+  "Save": "Speichern",
+  "Settings saved": "Einstellungen gespeichert",
+  "Configuration incomplete": "Konfiguration unvollständig",
+  "OData connection": "OData-Verbindung",
+  "OData Base URL": "OData-Basis-URL",
+  "Base URL without Company path segment": "Basis-URL ohne Company-Pfadsegment",
+  "Company name": "Firmenname",
+  "BC company name (URL-encoded automatically)": "BC-Firmenname (wird automatisch URL-kodiert)",
+  "Authentication": "Authentifizierung",
+  "Auth mode": "Auth-Modus",
+  "Basic Auth": "Basic Auth",
+  "OAuth2 (client credentials)": "OAuth2 (Client Credentials)",
+  "Basic Auth credentials": "Basic-Auth-Zugangsdaten",
+  "Username": "Benutzername",
+  "Password": "Passwort",
+  "Leave unchanged to keep current password": "Leer lassen, um das aktuelle Passwort beizubehalten",
+  "OAuth2 credentials": "OAuth2-Zugangsdaten",
+  "Azure Tenant ID": "Azure-Mandanten-ID",
+  "Client ID": "Client-ID",
+  "Client Secret": "Client-Secret",
+  "Token endpoint URL": "Token-Endpoint-URL",
+  "Connection test": "Verbindungstest",
+  "Test connection": "Verbindung testen",
+  "Connection successful": "Verbindung erfolgreich",
+  "Connection failed": "Verbindung fehlgeschlagen",
+  "Testing...": "Teste...",
+  "Form expired, please try again": "Formular abgelaufen, bitte erneut versuchen",
+  "OData Base URL must use HTTPS": "OData-Basis-URL muss HTTPS verwenden",
+  "Address & contact": "Adresse & Kontakt",
+  "Company": "Unternehmen",
+  "Company details": "Firmendetails",
+  "Contact & dates": "Kontakt & Termine",
+  "Could not load contacts.": "Ansprechpartner konnten nicht geladen werden.",
+  "Could not load tickets.": "Tickets konnten nicht geladen werden.",
+  "Last activity": "Letzte Aktivität",
+  "Ticket details": "Ticket-Details",
+  "Overview": "Übersicht",
+  "Open tickets": "Offene Tickets",
+  "All tickets": "Alle Tickets",
+  "All contacts": "Alle Ansprechpartner",
+  "Recent activity": "Letzte Aktivität",
+  "Support info & master data": "Support-Info & Stammdaten",
+  "Support type": "Supportart",
+  "Location": "Standort",
+  "No open tickets": "Keine offenen Tickets",
+  "No recent activity found.": "Keine aktuellen Aktivitäten gefunden.",
+  "Created": "Erstellt",
+  "Loading...": "Laden...",
+  "Mobile": "Mobil",
+  "Activity": "Aktivität",
+  "Activity timeline": "Aktivitätsverlauf",
+  "Message": "Nachricht",
+  "Status change": "Statusänderung",
+  "No activity found.": "Keine Aktivitäten gefunden.",
+  "Could not load activity log.": "Aktivitätsverlauf konnte nicht geladen werden.",
+  "sent a message": "hat eine Nachricht gesendet",
+  "changed status": "hat den Status geändert",
+  "Forwarded": "hat das Ticket weitergeleitet",
+  "attached a file": "hat eine Datei angehängt",
+  "Process": "Prozess",
+  "All": "Alle",
+  "Open": "Offen",
+  "In Progress": "In Bearbeitung",
+  "Closed": "Geschlossen"
+}