add all controllers logic

app/Http/Controllers/Api/Utilities/PhoneFormatterController.php

@@ -0,0 +1,36 @@
+<?php
+
+namespace App\Http\Controllers\Api\Utilities;
+
+use App\Http\Controllers\Api\BaseApiController;
+use App\Http\Requests\Utilities\PhoneFormatRequest;
+use App\Http\Resources\Utilities\PhoneFormatResource;
+use App\Services\Phone\PhoneFormatterService;
+use Illuminate\Http\JsonResponse;
+use Symfony\Component\HttpFoundation\Response;
+
+class PhoneFormatterController extends BaseApiController
+{
+    public function __construct(private PhoneFormatterService $service)
+    {
+        parent::__construct();
+    }
+
+    public function format(PhoneFormatRequest $request): JsonResponse
+    {
+        $raw = (string) $request->validated()['number'];
+        $formatted = $this->service->format($raw);
+
+        if ($formatted === null) {
+            return $this->error('Invalid phone number.', Response::HTTP_UNPROCESSABLE_ENTITY);
+        }
+
+        return $this->success([
+            'phone' => new PhoneFormatResource([
+                'raw' => $raw,
+                'formatted' => $formatted,
+                'is_valid' => true,
+            ]),
+        ]);
+    }
+}