fix: serve design studio through the component app production route

deploy/nginx-design-studio.conf

@@ -1,14 +1,5 @@
-# Include INSIDE the existing component site's nginx server block.
-# The existing location / continues to proxy the component app on its usual port.
-location = /design-studio {
-    return 308 /design-studio/;
-}
-location /design-studio/ {
-    # Preserve the path and the external Host so same-origin validation works.
-    proxy_pass http://127.0.0.1:4320;
-    proxy_set_header Host $http_host;
-    proxy_set_header X-Forwarded-Proto $scheme;
-    proxy_http_version 1.1;
-    proxy_read_timeout 60s;
-    client_max_body_size 2m;
-}
+# Studio is now mounted in the component app on its existing port.
+# No separate nginx location is required.
+# Remove the old /design-studio/ location that proxied to port 4320.
+# Let the existing location / forward Studio and normal pages to the same app.
+# Preserve Host, Origin and X-Forwarded-Proto in that existing proxy location.