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/loyalty/locales/en.json

@@ -69,6 +69,16 @@
             "pin_locked": "PIN locked due to too many failed attempts"
         }
     },
+    "permissions": {
+        "view_programs": "View Programs",
+        "view_programs_desc": "View loyalty programs and details",
+        "manage_programs": "Manage Programs",
+        "manage_programs_desc": "Create and configure loyalty programs",
+        "view_rewards": "View Rewards",
+        "view_rewards_desc": "View loyalty rewards and redemptions",
+        "manage_rewards": "Manage Rewards",
+        "manage_rewards_desc": "Create and manage loyalty rewards"
+    },
     "menu": {
         "loyalty": "Loyalty",
         "loyalty_programs": "Loyalty Programs",