Stand: SMTP-Test, Admin-Mail-Tab, Notifiable-Fix, Lazy-Quill

- Fix: Notifiable-Trait zum User-Model hinzugefuegt (behebt notify()-500er)
- Installer: SMTP-Verbindungstest mit EsmtpTransport + Ueberspringen-Link
- Admin: Neuer E-Mail-Tab mit SMTP-Konfiguration + Verbindungstest
- Admin: Lazy Quill-Initialisierung (nur sichtbare Locale wird geladen)
- Uebersetzungen: 17 neue Mail-Keys in allen 6 Sprachen

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

vendor/symfony/http-kernel/DataCollector/RouterDataCollector.php

@@ -0,0 +1,97 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\HttpKernel\DataCollector;
+
+use Symfony\Component\HttpFoundation\RedirectResponse;
+use Symfony\Component\HttpFoundation\Request;
+use Symfony\Component\HttpFoundation\Response;
+use Symfony\Component\HttpKernel\Event\ControllerEvent;
+
+/**
+ * @author Fabien Potencier <fabien@symfony.com>
+ */
+class RouterDataCollector extends DataCollector
+{
+    /**
+     * @var \SplObjectStorage<Request, callable>
+     */
+    protected \SplObjectStorage $controllers;
+
+    public function __construct()
+    {
+        $this->reset();
+    }
+
+    /**
+     * @final
+     */
+    public function collect(Request $request, Response $response, ?\Throwable $exception = null): void
+    {
+        if ($response instanceof RedirectResponse) {
+            $this->data['redirect'] = true;
+            $this->data['url'] = $response->getTargetUrl();
+
+            if ($this->controllers->offsetExists($request)) {
+                $this->data['route'] = $this->guessRoute($request, $this->controllers[$request]);
+            }
+        }
+
+        unset($this->controllers[$request]);
+    }
+
+    public function reset(): void
+    {
+        $this->controllers = new \SplObjectStorage();
+
+        $this->data = [
+            'redirect' => false,
+            'url' => null,
+            'route' => null,
+        ];
+    }
+
+    protected function guessRoute(Request $request, string|object|array $controller): string
+    {
+        return 'n/a';
+    }
+
+    /**
+     * Remembers the controller associated to each request.
+     */
+    public function onKernelController(ControllerEvent $event): void
+    {
+        $this->controllers[$event->getRequest()] = $event->getController();
+    }
+
+    /**
+     * @return bool Whether this request will result in a redirect
+     */
+    public function getRedirect(): bool
+    {
+        return $this->data['redirect'];
+    }
+
+    public function getTargetUrl(): ?string
+    {
+        return $this->data['url'];
+    }
+
+    public function getTargetRoute(): ?string
+    {
+        return $this->data['route'];
+    }
+
+    public function getName(): string
+    {
+        return 'router';
+    }
+}