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/ResourceCaster.php

@@ -0,0 +1,92 @@
+<?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;
+
+/**
+ * Casts common resource types to array representation.
+ *
+ * @author Nicolas Grekas <p@tchwork.com>
+ *
+ * @final
+ *
+ * @internal since Symfony 7.3
+ */
+class ResourceCaster
+{
+    /**
+     * @deprecated since Symfony 7.3
+     */
+    public static function castCurl(\CurlHandle $h, array $a, Stub $stub, bool $isNested): array
+    {
+        trigger_deprecation('symfony/var-dumper', '7.3', 'The "%s()" method is deprecated without replacement.', __METHOD__);
+
+        return CurlCaster::castCurl($h, $a, $stub, $isNested);
+    }
+
+    /**
+     * @param resource|\Dba\Connection $dba
+     */
+    public static function castDba(mixed $dba, array $a, Stub $stub, bool $isNested): array
+    {
+        if (\PHP_VERSION_ID < 80402 && !\is_resource($dba)) {
+            // @see https://github.com/php/php-src/issues/16990
+            return $a;
+        }
+
+        $list = dba_list();
+        $a['file'] = $list[(int) $dba];
+
+        return $a;
+    }
+
+    public static function castProcess($process, array $a, Stub $stub, bool $isNested): array
+    {
+        return proc_get_status($process);
+    }
+
+    public static function castStream($stream, array $a, Stub $stub, bool $isNested): array
+    {
+        $a = stream_get_meta_data($stream) + static::castStreamContext($stream, $a, $stub, $isNested);
+        if ($a['uri'] ?? false) {
+            $a['uri'] = new LinkStub($a['uri']);
+        }
+
+        return $a;
+    }
+
+    public static function castStreamContext($stream, array $a, Stub $stub, bool $isNested): array
+    {
+        return @stream_context_get_params($stream) ?: $a;
+    }
+
+    /**
+     * @deprecated since Symfony 7.3
+     */
+    public static function castGd(\GdImage $gd, array $a, Stub $stub, bool $isNested): array
+    {
+        trigger_deprecation('symfony/var-dumper', '7.3', 'The "%s()" method is deprecated without replacement.', __METHOD__);
+
+        return GdCaster::castGd($gd, $a, $stub, $isNested);
+    }
+
+    /**
+     * @deprecated since Symfony 7.3
+     */
+    public static function castOpensslX509(\OpenSSLCertificate $h, array $a, Stub $stub, bool $isNested): array
+    {
+        trigger_deprecation('symfony/var-dumper', '7.3', 'The "%s()" method is deprecated without replacement.', __METHOD__);
+
+        return OpenSSLCaster::castOpensslX509($h, $a, $stub, $isNested);
+    }
+}