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/console/Event/ConsoleEvent.php

@@ -0,0 +1,56 @@
+<?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\Console\Event;
+
+use Symfony\Component\Console\Command\Command;
+use Symfony\Component\Console\Input\InputInterface;
+use Symfony\Component\Console\Output\OutputInterface;
+use Symfony\Contracts\EventDispatcher\Event;
+
+/**
+ * Allows to inspect input and output of a command.
+ *
+ * @author Francesco Levorato <git@flevour.net>
+ */
+class ConsoleEvent extends Event
+{
+    public function __construct(
+        protected ?Command $command,
+        private InputInterface $input,
+        private OutputInterface $output,
+    ) {
+    }
+
+    /**
+     * Gets the command that is executed.
+     */
+    public function getCommand(): ?Command
+    {
+        return $this->command;
+    }
+
+    /**
+     * Gets the input instance.
+     */
+    public function getInput(): InputInterface
+    {
+        return $this->input;
+    }
+
+    /**
+     * Gets the output instance.
+     */
+    public function getOutput(): OutputInterface
+    {
+        return $this->output;
+    }
+}