feat: add Backend mit allen aktuellen features + Demo Daten

development-system/public/.htaccess

@@ -44,6 +44,10 @@
     # directory request to Contao's front controller.
     RewriteRule ^perspektivwerk/?$ perspektivwerk/index.html [L]
 
+    # The independent booking administration is a plain PHP application, not a
+    # Contao route. Serve its directory URL directly as well.
+    RewriteRule ^booking-admin/?$ booking-admin/index.php [L]
+
     # If the requested filename exists, simply serve it.
     # We only want to let Apache serve files and not directories.
     RewriteCond %{REQUEST_FILENAME} -f