add redirects for keymaster for those coming from search engines with old data.

nginx.conf

@@ -39,6 +39,12 @@ server {
         access_log off;
     }
 
+    # Legacy Keymaster paths moved permanently to the dedicated domain.
+    # Match both localized and non-localized URLs.
+    location ~* ^/(?:[a-z]{2}/)?(?:keymaster|k/dashboard)/?$ {
+        return 301 https://keymaster.beammp.com/;
+    }
+
     # SPA fallback: all other paths go to index.html so Vue Router can render the
     # correct view (including the NotFound page for unknown routes).
     location / {