feat: implement Stalwart admin authentication and role check across admin routes

locales/de/common.json

@@ -75,6 +75,7 @@
     "contacts": "Kontakte",
     "calendar": "Kalender",
     "settings": "Einstellungen",
+    "admin": "Admin",
     "files": "Dateien",
     "loading_mailboxes": "Postfächer werden geladen...",
     "push_connected": "Echtzeit-Updates aktiv",

locales/en/common.json

@@ -75,6 +75,7 @@
     "contacts": "Contacts",
     "calendar": "Calendar",
     "settings": "Settings",
+    "admin": "Admin",
     "files": "Files",
     "loading_mailboxes": "Loading mailboxes...",
     "push_connected": "Real-time updates active",

locales/es/common.json

@@ -75,6 +75,7 @@
     "contacts": "Contactos",
     "calendar": "Calendario",
     "settings": "Configuración",
+    "admin": "Admin",
     "files": "Archivos",
     "loading_mailboxes": "Cargando buzones...",
     "push_connected": "Actualizaciones en tiempo real activas",

locales/fr/common.json

@@ -75,6 +75,7 @@
     "contacts": "Contacts",
     "calendar": "Calendrier",
     "settings": "Paramètres",
+    "admin": "Admin",
     "files": "Fichiers",
     "loading_mailboxes": "Chargement des boîtes mail...",
     "push_connected": "Mises à jour en temps réel actives",

locales/it/common.json

@@ -75,6 +75,7 @@
     "contacts": "Contatti",
     "calendar": "Calendario",
     "settings": "Impostazioni",
+    "admin": "Admin",
     "files": "File",
     "loading_mailboxes": "Caricamento caselle di posta...",
     "push_connected": "Aggiornamenti in tempo reale attivi",

locales/ja/common.json

@@ -75,6 +75,7 @@
     "contacts": "連絡先",
     "calendar": "カレンダー",
     "settings": "設定",
+    "admin": "管理",
     "files": "ファイル",
     "loading_mailboxes": "メールボックスを読み込み中...",
     "push_connected": "リアルタイム更新が有効",

locales/nl/common.json

@@ -75,6 +75,7 @@
     "contacts": "Contacten",
     "calendar": "Agenda",
     "settings": "Instellingen",
+    "admin": "Admin",
     "files": "Bestanden",
     "loading_mailboxes": "Mappen laden...",
     "push_connected": "Real-time updates actief",

locales/pt/common.json

@@ -75,6 +75,7 @@
     "contacts": "Contatos",
     "calendar": "Calendário",
     "settings": "Configurações",
+    "admin": "Admin",
     "files": "Ficheiros",
     "loading_mailboxes": "Carregando caixas de entrada...",
     "push_connected": "Atualizações em tempo real ativas",

locales/ru/common.json

@@ -75,6 +75,7 @@
     "contacts": "Контакты",
     "calendar": "Календарь",
     "settings": "Настройки",
+    "admin": "Админ",
     "files": "Файлы",
     "loading_mailboxes": "Загрузка папок...",
     "push_connected": "Обновления в реальном времени активны",