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/doctrine/inflector/src/Rules/Esperanto/Inflectible.php

@@ -0,0 +1,31 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Doctrine\Inflector\Rules\Esperanto;
+
+use Doctrine\Inflector\Rules\Pattern;
+use Doctrine\Inflector\Rules\Substitution;
+use Doctrine\Inflector\Rules\Transformation;
+use Doctrine\Inflector\Rules\Word;
+
+class Inflectible
+{
+    /** @return Transformation[] */
+    public static function getSingular(): iterable
+    {
+        yield new Transformation(new Pattern('oj$'), 'o');
+    }
+
+    /** @return Transformation[] */
+    public static function getPlural(): iterable
+    {
+        yield new Transformation(new Pattern('o$'), 'oj');
+    }
+
+    /** @return Substitution[] */
+    public static function getIrregular(): iterable
+    {
+        yield new Substitution(new Word(''), new Word(''));
+    }
+}