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/Builder/Use_.php

@@ -0,0 +1,49 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Builder;
+
+use PhpParser\Builder;
+use PhpParser\BuilderHelpers;
+use PhpParser\Node;
+use PhpParser\Node\Stmt;
+
+class Use_ implements Builder {
+    protected Node\Name $name;
+    /** @var Stmt\Use_::TYPE_* */
+    protected int $type;
+    protected ?string $alias = null;
+
+    /**
+     * Creates a name use (alias) builder.
+     *
+     * @param Node\Name|string $name Name of the entity (namespace, class, function, constant) to alias
+     * @param Stmt\Use_::TYPE_* $type One of the Stmt\Use_::TYPE_* constants
+     */
+    public function __construct($name, int $type) {
+        $this->name = BuilderHelpers::normalizeName($name);
+        $this->type = $type;
+    }
+
+    /**
+     * Sets alias for used name.
+     *
+     * @param string $alias Alias to use (last component of full name by default)
+     *
+     * @return $this The builder instance (for fluid interface)
+     */
+    public function as(string $alias) {
+        $this->alias = $alias;
+        return $this;
+    }
+
+    /**
+     * Returns the built node.
+     *
+     * @return Stmt\Use_ The built node
+     */
+    public function getNode(): Node {
+        return new Stmt\Use_([
+            new Node\UseItem($this->name, $this->alias)
+        ], $this->type);
+    }
+}