feat: Phase 4 - Mailwizz integration with subscriber sync and retry

app/Http/Requests/Admin/QueueMailwizzSyncRequest.php

@@ -0,0 +1,29 @@
+<?php
+
+declare(strict_types=1);
+
+namespace App\Http\Requests\Admin;
+
+use App\Models\PreregistrationPage;
+use Illuminate\Foundation\Http\FormRequest;
+
+class QueueMailwizzSyncRequest extends FormRequest
+{
+    public function authorize(): bool
+    {
+        $page = $this->route('page');
+        if (! $page instanceof PreregistrationPage) {
+            return false;
+        }
+
+        return $this->user()?->can('update', $page) ?? false;
+    }
+
+    /**
+     * @return array<string, array<int, string>>
+     */
+    public function rules(): array
+    {
+        return [];
+    }
+}