added support for legacy tickets, fixed switching of modes and also style updates

Modules/Helpdesk/Http/Controllers/NativeAuthorizationController.php

@@ -0,0 +1,33 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Modules\Helpdesk\Http\Controllers;
+
+use Illuminate\Http\Request;
+use Illuminate\Routing\Controller;
+use Illuminate\View\View;
+
+final class NativeAuthorizationController extends Controller
+{
+    public function authorize(Request $request): View
+    {
+        $request->validate([
+            'client_id' => ['required', 'string'],
+            'redirect_uri' => ['required', 'string'],
+            'response_type' => ['required', 'in:code'],
+            'state' => ['required', 'string', 'min:32'],
+            'code_challenge' => ['required', 'string', 'size:43'],
+            'code_challenge_method' => ['required', 'in:S256'],
+        ]);
+
+        // Authorization-code issuance is not implemented yet.
+        // Never redirect a code or token to an unregistered URI.
+        abort(501, 'Native authorization is not yet implemented.');
+    }
+
+    public function approve(Request $request): void
+    {
+        abort(501, 'Native authorization approval is not yet implemented.');
+    }
+}