feat(auth): Laravel 13 + Breeze + Spatie RBAC

- Authentifizierung via Laravel Breeze (Blade)
- RBAC via Spatie Permission v8 (admin/manager/user)
- MariaDB-Anbindung konfiguriert
- Rollen & Permissions via Seeder angelegt
- Admin-Account: admin@mms-systemservice.de

Version: 0.2.0

.gitignore

@@ -0,0 +1,27 @@
+*.log
+.DS_Store
+.env
+.env.backup
+.env.production
+.phpactor.json
+.phpunit.result.cache
+/.codex
+/.cursor/
+/.idea
+/.nova
+/.phpunit.cache
+/.vscode
+/.zed
+/auth.json
+/node_modules
+/public/build
+/public/fonts-manifest.dev.json
+/public/hot
+/public/storage
+/storage/*.key
+/storage/pail
+/vendor
+_ide_helper.php
+Homestead.json
+Homestead.yaml
+Thumbs.db