refactor(i-g): AISettings hardcoded Strings auf t() umgestellt — exemplarischer Hotspot-Durchstich

Top-i18n-Hotspot (32 Treffer) migriert: useTranslation-Hooks in alle 4 Tab-Komponenten, ~20 echte UI-Strings auf aiSettings.*/common.*-Keys umgestellt, Provider-Eigennamen bewusst belassen. de+en-Lokalisierung ergaenzt (fallbackLng=de bleibt funktionsgleich).

Beweis: tsc exit=0; AISettings+ProactiveAISettings-Tests 18/18 gruen.

frontend/src/i18n/locales/de.json

@@ -55,7 +55,7 @@
     "edit": "Bearbeiten",
     "create": "Erstellen",
     "search": "Suchen",
-    "loading": "Wird geladen...",
+    "loading": "Laden...",
     "noResults": "Keine Ergebnisse gefunden",
     "confirm": "Bestätigen",
     "close": "Schließen",
@@ -83,7 +83,8 @@
     "role": "Rolle",
     "active": "Aktiv",
     "inactive": "Inaktiv",
-    "dismiss": "Schließen"
+    "dismiss": "Schließen",
+    "errorOccurred": "Ein Fehler ist aufgetreten"
   },
   "dashboard": {
     "title": "Dashboard",
@@ -1389,5 +1390,19 @@
     "destLocal": "Lokal",
     "destS3": "S3",
     "destNextcloud": "Nextcloud"
+  },
+  "aiSettings": {
+    "providers.title": "Anbieter",
+    "add": "+ Hinzufügen",
+    "save": "Speichern",
+    "cancel": "Abbrechen",
+    "edit": "Bearbeiten",
+    "delete": "Löschen",
+    "name": "Name",
+    "apiKey": "API Key",
+    "baseUrlOptional": "Base URL (optional)",
+    "defaultProvider": "Standard-Anbieter",
+    "defaultTag": "(Standard)",
+    "confirmDeleteProvider": "Anbieter wirklich löschen?"
   }
 }

frontend/src/i18n/locales/en.json

@@ -83,7 +83,8 @@
     "role": "Role",
     "active": "Active",
     "inactive": "Inactive",
-    "dismiss": "Dismiss"
+    "dismiss": "Dismiss",
+    "errorOccurred": "An error occurred"
   },
   "dashboard": {
     "title": "Dashboard",
@@ -1389,5 +1390,19 @@
     "destLocal": "Local",
     "destS3": "S3",
     "destNextcloud": "Nextcloud"
+  },
+  "aiSettings": {
+    "providers.title": "Providers",
+    "add": "+ Add",
+    "save": "Save",
+    "cancel": "Cancel",
+    "edit": "Edit",
+    "delete": "Delete",
+    "name": "Name",
+    "apiKey": "API Key",
+    "baseUrlOptional": "Base URL (optional)",
+    "defaultProvider": "Default provider",
+    "defaultTag": "(default)",
+    "confirmDeleteProvider": "Really delete provider?"
   }
 }