new funcionality

app/Rules/SafeWebhookUrl.php

@@ -0,0 +1,17 @@
+<?php
+
+namespace App\Rules;
+
+use App\Support\WebhookEndpoints;
+use Closure;
+use Illuminate\Contracts\Validation\ValidationRule;
+
+class SafeWebhookUrl implements ValidationRule
+{
+    public function validate(string $attribute, mixed $value, Closure $fail): void
+    {
+        if (! is_string($value) || ! WebhookEndpoints::isSafeUrl($value)) {
+            $fail(__('messages.webhook_url_not_allowed'));
+        }
+    }
+}