fix tests

app/Http/Controllers/Api/System/StatsController.php

@@ -18,9 +18,11 @@ class StatsController extends BaseApiController
             }
 
             $stats = Stats::query()->get()->toArray();
+
             return $this->success($stats, 'Statistics retrieved successfully');
         } catch (\Throwable $e) {
             Log::error('Stats retrieval error: '.$e->getMessage());
+
             return $this->respondError('Failed to retrieve statistics', Response::HTTP_INTERNAL_SERVER_ERROR);
         }
     }