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/nikic/php-parser/lib/PhpParser/Node/Const_.php

@@ -0,0 +1,36 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node;
+
+use PhpParser\NodeAbstract;
+
+class Const_ extends NodeAbstract {
+    /** @var Identifier Name */
+    public Identifier $name;
+    /** @var Expr Value */
+    public Expr $value;
+
+    /** @var Name|null Namespaced name (if using NameResolver) */
+    public ?Name $namespacedName;
+
+    /**
+     * Constructs a const node for use in class const and const statements.
+     *
+     * @param string|Identifier $name Name
+     * @param Expr $value Value
+     * @param array<string, mixed> $attributes Additional attributes
+     */
+    public function __construct($name, Expr $value, array $attributes = []) {
+        $this->attributes = $attributes;
+        $this->name = \is_string($name) ? new Identifier($name) : $name;
+        $this->value = $value;
+    }
+
+    public function getSubNodeNames(): array {
+        return ['name', 'value'];
+    }
+
+    public function getType(): string {
+        return 'Const';
+    }
+}