Task 2: Admin Performance Entries API Route

- GET /admin/performance — paginated listing with removed/verified/search filters,
  joining games, gameVersions, hardware, and user tables
- PATCH /admin/performance/:id/verify — verify entry (contributor or admin)
- PATCH /admin/performance/:id/remove — soft-delete entry (admin only)
- PATCH /admin/performance/:id/restore — restore entry (admin only)
- Registered route in app/api/[[...slugs]]/route.ts and lib/api/index.ts

lib/api/index.ts

@@ -12,3 +12,4 @@ export { savedGamesRoutes } from "./saved-games"
 export { reportRoutes } from "./reports"
 export { contactRoutes } from "./contact"
 export { adminReportRoutes } from "./admin-reports"
+export { adminPerformanceRoutes } from "./admin-performance"