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/var-dumper/Caster/MemcachedCaster.php

@@ -0,0 +1,83 @@
+<?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\VarDumper\Caster;
+
+use Symfony\Component\VarDumper\Cloner\Stub;
+
+/**
+ * @author Jan Schädlich <jan.schaedlich@sensiolabs.de>
+ *
+ * @final
+ *
+ * @internal since Symfony 7.3
+ */
+class MemcachedCaster
+{
+    private static array $optionConstants;
+    private static array $defaultOptions;
+
+    public static function castMemcached(\Memcached $c, array $a, Stub $stub, bool $isNested): array
+    {
+        $a += [
+            Caster::PREFIX_VIRTUAL.'servers' => $c->getServerList(),
+            Caster::PREFIX_VIRTUAL.'options' => new EnumStub(
+                self::getNonDefaultOptions($c)
+            ),
+        ];
+
+        return $a;
+    }
+
+    private static function getNonDefaultOptions(\Memcached $c): array
+    {
+        self::$defaultOptions ??= self::discoverDefaultOptions();
+        self::$optionConstants ??= self::getOptionConstants();
+
+        $nonDefaultOptions = [];
+        foreach (self::$optionConstants as $constantKey => $value) {
+            if (self::$defaultOptions[$constantKey] !== $option = $c->getOption($value)) {
+                $nonDefaultOptions[$constantKey] = $option;
+            }
+        }
+
+        return $nonDefaultOptions;
+    }
+
+    private static function discoverDefaultOptions(): array
+    {
+        $defaultMemcached = new \Memcached();
+        $defaultMemcached->addServer('127.0.0.1', 11211);
+
+        $defaultOptions = [];
+        self::$optionConstants ??= self::getOptionConstants();
+
+        foreach (self::$optionConstants as $constantKey => $value) {
+            $defaultOptions[$constantKey] = $defaultMemcached->getOption($value);
+        }
+
+        return $defaultOptions;
+    }
+
+    private static function getOptionConstants(): array
+    {
+        $reflectedMemcached = new \ReflectionClass(\Memcached::class);
+
+        $optionConstants = [];
+        foreach ($reflectedMemcached->getConstants() as $constantKey => $value) {
+            if (str_starts_with($constantKey, 'OPT_')) {
+                $optionConstants[$constantKey] = $value;
+            }
+        }
+
+        return $optionConstants;
+    }
+}