Revived API POST /api/v1/captcha.

Captcha validation has been adjusted.

app/ServiceResults/Api/V1/CaptchaService/CaptchaVerifiedResult.php

@@ -0,0 +1,17 @@
+<?php declare(strict_types=1);
+
+namespace App\ServiceResults\Api\V1\CaptchaService;
+
+use App\ServiceResults\ServiceResult;
+
+final class CaptchaVerifiedResult extends ServiceResult
+{
+    public function __construct(
+        private readonly string $key
+    ) { }
+
+    public function getKey(): string
+    {
+        return $this->key;
+    }
+}