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/console/Resources/completion.fish

@@ -0,0 +1,25 @@
+# This file is part of the Symfony package.
+#
+# (c) Fabien Potencier <fabien@symfony.com>
+#
+# For the full copyright and license information, please view
+# https://symfony.com/doc/current/contributing/code/license.html
+
+function _sf_{{ COMMAND_NAME }}
+    set sf_cmd (commandline -o)
+    set c (count (commandline -oc))
+
+    set completecmd "$sf_cmd[1]" "_complete" "--no-interaction" "-sfish" "-a{{ VERSION }}"
+
+    for i in $sf_cmd
+        if [ $i != "" ]
+            set completecmd $completecmd "-i$i"
+        end
+    end
+
+    set completecmd $completecmd "-c$c"
+
+    $completecmd
+end
+
+complete -c '{{ COMMAND_NAME }}' -a '(_sf_{{ COMMAND_NAME }})' -f