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/orders/locales/lb.json

@@ -79,5 +79,15 @@
         "store_operations": "Buttek-Operatiounen",
         "sales_orders": "Verkaf & Bestellungen",
         "orders": "Bestellungen"
+    },
+    "permissions": {
+        "orders_view": "Bestellunge kucken",
+        "orders_view_desc": "Bestelllëscht an Detailer kucken",
+        "orders_edit": "Bestellungen änneren",
+        "orders_edit_desc": "Bestellstatus an Detailer aktualiséieren",
+        "orders_cancel": "Bestellungen stornéieren",
+        "orders_cancel_desc": "Aussteesend oder a Veraarbechtung Bestellunge stornéieren",
+        "orders_refund": "Bestellungen erstatten",
+        "orders_refund_desc": "Réckerstattunge fir Bestellunge veraarbechten"
     }
 }