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/dompdf/php-svg-lib/composer.json

@@ -0,0 +1,31 @@
+{
+  "name": "dompdf/php-svg-lib",
+  "type": "library",
+  "description": "A library to read, parse and export to PDF SVG files.",
+  "homepage": "https://github.com/dompdf/php-svg-lib",
+  "license": "LGPL-3.0-or-later",
+  "authors": [
+    {
+      "name": "The SvgLib Community",
+      "homepage": "https://github.com/dompdf/php-svg-lib/blob/master/AUTHORS.md"
+    }
+  ],
+  "autoload": {
+    "psr-4": {
+      "Svg\\": "src/Svg"
+    }
+  },
+  "autoload-dev": {
+    "psr-4": {
+      "Svg\\Tests\\": "tests/Svg"
+    }
+  },
+  "require": {
+    "php": "^7.1 || ^8.0",
+    "ext-mbstring": "*",
+    "sabberworm/php-css-parser": "^8.4 || ^9.0"
+  },
+  "require-dev": {
+    "phpunit/phpunit": "^7.5 || ^8 || ^9 || ^10 || ^11"
+  }
+}