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/league/uri-interfaces/Idna/Result.php

@@ -0,0 +1,64 @@
+<?php
+
+/**
+ * League.Uri (https://uri.thephpleague.com)
+ *
+ * (c) Ignace Nyamagana Butera <nyamsprod@gmail.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+declare(strict_types=1);
+
+namespace League\Uri\Idna;
+
+/**
+ * @see https://unicode-org.github.io/icu-docs/apidoc/released/icu4c/uidna_8h.html
+ */
+final class Result
+{
+    private function __construct(
+        private readonly string $domain,
+        private readonly bool $isTransitionalDifferent,
+        /** @var array<Error> */
+        private readonly array $errors
+    ) {
+    }
+
+    /**
+     * @param array{result:string, isTransitionalDifferent:bool, errors:int} $infos
+     */
+    public static function fromIntl(array $infos): self
+    {
+        return new self($infos['result'], $infos['isTransitionalDifferent'], Error::filterByErrorBytes($infos['errors']));
+    }
+
+    public function domain(): string
+    {
+        return $this->domain;
+    }
+
+    public function isTransitionalDifferent(): bool
+    {
+        return $this->isTransitionalDifferent;
+    }
+
+    /**
+     * @return array<Error>
+     */
+    public function errors(): array
+    {
+        return $this->errors;
+    }
+
+    public function hasErrors(): bool
+    {
+        return [] !== $this->errors;
+    }
+
+    public function hasError(Error $error): bool
+    {
+        return in_array($error, $this->errors, true);
+    }
+}