webauthn: add controllers and transformers

app/Transformers/Api/Client/WebauthnKeyTransformer.php

@@ -0,0 +1,29 @@
+<?php
+
+namespace Pterodactyl\Transformers\Api\Client;
+
+use LaravelWebauthn\Models\WebauthnKey;
+
+class WebauthnKeyTransformer extends BaseClientTransformer
+{
+    /**
+     * Return the resource name for the JSONAPI output.
+     */
+    public function getResourceName(): string
+    {
+        return 'webauthn_key';
+    }
+
+    /**
+     * Return basic information about the currently logged in user.
+     */
+    public function transform(WebauthnKey $model): array
+    {
+        return [
+            'id' => $model->id,
+            'name' => $model->name,
+            'created_at' => $model->created_at->toIso8601String(),
+            'last_used_at' => now()->toIso8601String(),
+        ];
+    }
+}