fix: refactored the codebase

app/Http/Resources/ClosedRoomResource.php

@@ -0,0 +1,20 @@
+<?php
+
+namespace App\Http\Resources;
+
+use Illuminate\Http\Request;
+use Illuminate\Http\Resources\Json\JsonResource;
+
+class ClosedRoomResource extends JsonResource
+{
+    /**
+     * @return array<string, mixed>
+     */
+    public function toArray(Request $request): array
+    {
+        return [
+            'title' => $this->resource->title,
+            'join_code' => $this->resource->join_code,
+        ];
+    }
+}