Add missing admin action files and navigation links

- Add 11 missing server action files: badges, bulk-users, catalog, catalog-bc, catalog-items, import-badges, import-furni, multi-account-detect, permissions, rooms, soundtracks
- Add missing admin navigation links: tickets, sounds, translations, import, radio sub-pages
- Add translation keys for all new navigation items

src/app/api/shop/route.ts

@@ -55,9 +55,6 @@ export async function GET(req: Request) {
     });
   } catch {
     // DB unreachable — never 500; return an empty, well-formed payload.
-    return apiJson(
-      { data: [], meta: { page, perPage, total: 0, lastPage: 1 } },
-      { status: 200 },
-    );
+    return apiJson({ data: [], meta: { page, perPage, total: 0, lastPage: 1 } }, { status: 200 });
   }
 }