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/translation/Loader/CsvFileLoader.php

@@ -0,0 +1,60 @@
+<?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\Translation\Loader;
+
+use Symfony\Component\Translation\Exception\NotFoundResourceException;
+
+/**
+ * CsvFileLoader loads translations from CSV files.
+ *
+ * @author Saša Stamenković <umpirsky@gmail.com>
+ */
+class CsvFileLoader extends FileLoader
+{
+    private string $delimiter = ';';
+    private string $enclosure = '"';
+
+    protected function loadResource(string $resource): array
+    {
+        $messages = [];
+
+        try {
+            $file = new \SplFileObject($resource, 'rb');
+        } catch (\RuntimeException $e) {
+            throw new NotFoundResourceException(\sprintf('Error opening file "%s".', $resource), 0, $e);
+        }
+
+        $file->setFlags(\SplFileObject::READ_CSV | \SplFileObject::SKIP_EMPTY | \SplFileObject::DROP_NEW_LINE);
+        $file->setCsvControl($this->delimiter, $this->enclosure, '');
+
+        foreach ($file as $data) {
+            if (false === $data) {
+                continue;
+            }
+
+            if (!str_starts_with($data[0], '#') && isset($data[1]) && 2 === \count($data)) {
+                $messages[$data[0]] = $data[1];
+            }
+        }
+
+        return $messages;
+    }
+
+    /**
+     * Sets the delimiter and enclosure character for CSV.
+     */
+    public function setCsvControl(string $delimiter = ';', string $enclosure = '"'): void
+    {
+        $this->delimiter = $delimiter;
+        $this->enclosure = $enclosure;
+    }
+}