Feature/phone register (#11)

Co-authored-by: ISMAIL MASSERAN <topaz@ISMAILs-Macbook.local>
Co-authored-by: ISMAIL MASSERAN <topaz@Mac.dlinkrouter.local>
Reviewed-on: #11

be/Modules/ExternalSystem/Exceptions/ExternalSystemLaunchException.php

@@ -0,0 +1,16 @@
+<?php
+
+namespace Modules\ExternalSystem\Exceptions;
+
+use Exception;
+
+class ExternalSystemLaunchException extends Exception
+{
+    public function __construct(
+        string $message,
+        public readonly string $errorCode,
+        public readonly int $status = 422,
+    ) {
+        parent::__construct($message);
+    }
+}