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/routes/pages/admin.py

@@ -197,6 +197,34 @@ async def admin_store_domains_page(
     )
 
 
+# ============================================================================
+# STORE ROLES ROUTES
+# ============================================================================
+
+
+@router.get("/store-roles", response_class=HTMLResponse, include_in_schema=False)
+async def admin_store_roles_page(
+    request: Request,
+    current_user: User = Depends(
+        require_menu_access("store-roles", FrontendType.ADMIN)
+    ),
+    db: Session = Depends(get_db),
+):
+    """
+    Render store roles management page.
+    Allows admins to select a store and manage its roles and permissions.
+    Super admins see merchant → store cascading selection.
+    Platform admins see store selection scoped to their platforms.
+    """
+    is_super_admin = current_user.role == "super_admin"
+    return templates.TemplateResponse(
+        "tenancy/admin/store-roles.html",
+        get_admin_context(
+            request, db, current_user, is_super_admin=is_super_admin
+        ),
+    )
+
+
 # ============================================================================
 # STORE THEMES ROUTES
 # ============================================================================