update controllers logic

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

@@ -0,0 +1,29 @@
+<?php
+
+namespace App\Http\Controllers\Api\System;
+
+use App\Http\Controllers\Api\Core\BaseApiController;
+use App\Models\Stats;
+use Symfony\Component\HttpFoundation\Response;
+
+class StatsController extends BaseApiController
+{
+    protected Stats $stats;
+
+    public function __construct()
+    {
+        parent::__construct();
+        $this->stats = model(Stats::class);
+    }
+
+    public function index()
+    {
+        try {
+            $stats = $this->stats->findAll();
+            return $this->success($stats, 'Statistics retrieved successfully');
+        } catch (\Throwable $e) {
+            log_message('error', 'Stats retrieval error: ' . $e->getMessage());
+            return $this->respondError('Failed to retrieve statistics', Response::HTTP_INTERNAL_SERVER_ERROR);
+        }
+    }
+}