feat(roles): add admin store roles page, permission i18n, and menu integration

- Add admin store roles page with merchant→store cascading for superadmin
  and store-only selection for platform admin
- Add permission catalog API with translated labels/descriptions (en/fr/de/lb)
- Add permission translations to all 15 module locale files (60 files total)
- Add info icon tooltips for permission descriptions in role editor
- Add store roles menu item and admin menu item in module definition
- Fix store-selector.js URL construction bug when apiEndpoint has query params
- Add admin store roles API (CRUD + platform scoping)
- Add integration tests for admin store roles and permission catalog

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

app/modules/tenancy/locales/de.json

@@ -112,5 +112,37 @@
             "name": "Audit-Protokoll",
             "description": "Alle Benutzeraktionen und Änderungen nachverfolgen"
         }
+    },
+    "permissions": {
+        "category": {
+            "dashboard": "Dashboard",
+            "products": "Produkte",
+            "stock": "Inventar",
+            "orders": "Bestellungen",
+            "customers": "Kunden",
+            "marketing": "Marketing",
+            "reports": "Berichte",
+            "settings": "Einstellungen",
+            "team": "Team",
+            "imports": "Importe",
+            "general": "Allgemein",
+            "analytics": "Analytik",
+            "billing": "Abrechnung",
+            "cart": "Warenkorb",
+            "checkout": "Kasse",
+            "cms": "Inhalte",
+            "loyalty": "Treue",
+            "marketplace": "Marktplatz",
+            "messaging": "Nachrichten",
+            "payments": "Zahlungen"
+        },
+        "team_view": "Team anzeigen",
+        "team_view_desc": "Teammitglieder und ihre Rollen anzeigen",
+        "team_invite": "Mitglieder einladen",
+        "team_invite_desc": "Neue Mitglieder ins Team einladen",
+        "team_edit": "Mitglieder bearbeiten",
+        "team_edit_desc": "Rollen und Berechtigungen der Mitglieder bearbeiten",
+        "team_remove": "Mitglieder entfernen",
+        "team_remove_desc": "Mitglieder aus dem Team entfernen"
     }
 }