Upgrade to laravel 13 and passport 13.

app/Http/Controllers/Profile/OAuthController.php

@@ -0,0 +1,51 @@
+<?php
+/*
+ * OAuthController.php
+ * Copyright (c) 2026 james@firefly-iii.org
+ *
+ * This file is part of Firefly III (https://github.com/firefly-iii).
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+namespace FireflyIII\Http\Controllers\Profile;
+
+use FireflyIII\Http\Controllers\Controller;
+use FireflyIII\Http\Middleware\IsDemoUser;
+use Illuminate\Support\Facades\Log;
+
+class OAuthController extends Controller
+{
+    protected bool $internalAuth;
+    public function __construct()
+    {
+        parent::__construct();
+
+        $this->middleware(static function ($request, $next) {
+            app('view')->share('title', (string) trans('firefly.oauth_tokens'));
+            app('view')->share('mainTitleIcon', 'fa-user');
+
+            return $next($request);
+        });
+        $authGuard          = config('firefly.authentication_guard');
+        $this->internalAuth = 'web' === $authGuard;
+        Log::debug(sprintf('ProfileController::__construct(). Authentication guard is "%s"', $authGuard));
+
+        $this->middleware(IsDemoUser::class)->except(['index']);
+    }
+
+    public function index() {
+        return view('profile.oauth.index');
+    }
+}