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/mime/Part/SMimePart.php

@@ -0,0 +1,199 @@
+<?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\Mime\Part;
+
+use Symfony\Component\Mime\Header\Headers;
+
+/**
+ * @author Sebastiaan Stok <s.stok@rollerscapes.net>
+ */
+class SMimePart extends AbstractPart
+{
+    /** @internal, to be removed in 8.0 */
+    protected Headers $_headers;
+
+    public function __construct(
+        private iterable|string $body,
+        private string $type,
+        private string $subtype,
+        private array $parameters,
+    ) {
+        parent::__construct();
+    }
+
+    public function getMediaType(): string
+    {
+        return $this->type;
+    }
+
+    public function getMediaSubtype(): string
+    {
+        return $this->subtype;
+    }
+
+    public function bodyToString(): string
+    {
+        if (\is_string($this->body)) {
+            return $this->body;
+        }
+
+        $body = '';
+        foreach ($this->body as $chunk) {
+            $body .= $chunk;
+        }
+        $this->body = $body;
+
+        return $body;
+    }
+
+    public function bodyToIterable(): iterable
+    {
+        if (\is_string($this->body)) {
+            yield $this->body;
+
+            return;
+        }
+
+        $body = '';
+        foreach ($this->body as $chunk) {
+            $body .= $chunk;
+            yield $chunk;
+        }
+        $this->body = $body;
+    }
+
+    public function getPreparedHeaders(): Headers
+    {
+        $headers = clone parent::getHeaders();
+
+        $headers->setHeaderBody('Parameterized', 'Content-Type', $this->getMediaType().'/'.$this->getMediaSubtype());
+
+        foreach ($this->parameters as $name => $value) {
+            $headers->setHeaderParameter('Content-Type', $name, $value);
+        }
+
+        return $headers;
+    }
+
+    public function __serialize(): array
+    {
+        if (self::class === (new \ReflectionMethod($this, '__sleep'))->class || self::class !== (new \ReflectionMethod($this, '__serialize'))->class) {
+            // convert iterables to strings for serialization
+            if (is_iterable($this->body)) {
+                $this->body = $this->bodyToString();
+            }
+
+            return [
+                '_headers' => $this->getHeaders(),
+                'body' => $this->body,
+                'type' => $this->type,
+                'subtype' => $this->subtype,
+                'parameters' => $this->parameters,
+            ];
+        }
+
+        trigger_deprecation('symfony/mime', '7.4', 'Implementing "%s::__sleep()" is deprecated, use "__serialize()" instead.', get_debug_type($this));
+
+        $data = [];
+        foreach ($this->__sleep() as $key) {
+            try {
+                if (($r = new \ReflectionProperty($this, $key))->isInitialized($this)) {
+                    $data[$key] = $r->getValue($this);
+                }
+            } catch (\ReflectionException) {
+                $data[$key] = $this->$key;
+            }
+        }
+
+        return $data;
+    }
+
+    public function __unserialize(array $data): void
+    {
+        if ($wakeup = self::class !== (new \ReflectionMethod($this, '__wakeup'))->class && self::class === (new \ReflectionMethod($this, '__unserialize'))->class) {
+            trigger_deprecation('symfony/mime', '7.4', 'Implementing "%s::__wakeup()" is deprecated, use "__unserialize()" instead.', get_debug_type($this));
+        }
+
+        if (['_headers', 'body', 'type', 'subtype', 'parameters'] === array_keys($data)) {
+            parent::__unserialize(['headers' => $data['_headers']]);
+            $this->body = $data['body'];
+            $this->type = $data['type'];
+            $this->subtype = $data['subtype'];
+            $this->parameters = $data['parameters'];
+
+            if ($wakeup) {
+                $this->__wakeup();
+            }
+
+            return;
+        }
+
+        $p = "\0".self::class."\0";
+        if (["\0*\0_headers", $p.'body', $p.'type', $p.'subtype', $p.'parameters'] === array_keys($data)) {
+            $r = new \ReflectionProperty(parent::class, 'headers');
+            $r->setValue($this, $data["\0*\0_headers"]);
+
+            $this->body = $data[$p.'body'];
+            $this->type = $data[$p.'type'];
+            $this->subtype = $data[$p.'subtype'];
+            $this->parameters = $data[$p.'parameters'];
+
+            if ($wakeup) {
+                $this->_headers = $data["\0*\0_headers"];
+                $this->__wakeup();
+            }
+
+            return;
+        }
+
+        trigger_deprecation('symfony/mime', '7.4', 'Passing extra keys to "%s::__unserialize()" is deprecated, populate properties in "%s::__unserialize()" instead.', self::class, get_debug_type($this));
+
+        \Closure::bind(function ($data) use ($wakeup) {
+            foreach ($data as $key => $value) {
+                $this->{("\0" === $key[0] ?? '') ? substr($key, 1 + strrpos($key, "\0")) : $key} = $value;
+            }
+
+            if ($wakeup) {
+                $this->__wakeup();
+            }
+        }, $this, static::class)($data);
+    }
+
+    /**
+     * @deprecated since Symfony 7.4, will be replaced by `__serialize()` in 8.0
+     */
+    public function __sleep(): array
+    {
+        trigger_deprecation('symfony/mime', '7.4', 'Calling "%s::__sleep()" is deprecated, use "__serialize()" instead.', get_debug_type($this));
+
+        // convert iterables to strings for serialization
+        if (is_iterable($this->body)) {
+            $this->body = $this->bodyToString();
+        }
+
+        $this->_headers = $this->getHeaders();
+
+        return ['_headers', 'body', 'type', 'subtype', 'parameters'];
+    }
+
+    /**
+     * @deprecated since Symfony 7.4, will be replaced by `__unserialize()` in 8.0
+     */
+    public function __wakeup(): void
+    {
+        trigger_deprecation('symfony/mime', '7.4', 'Calling "%s::__wakeup()" is deprecated, use "__unserialize()" instead.', get_debug_type($this));
+
+        $r = new \ReflectionProperty(AbstractPart::class, 'headers');
+        $r->setValue($this, $this->_headers);
+        unset($this->_headers);
+    }
+}