MCP enabled but frontend proxy route /mcp/stream missing in penpot-aio 2.16.0

[stewartmcfarland]

Using:

jsonbored/penpot-aio:latest

Image revision:
715bd1c09e8a8cf3f9911cb94b24c5803c5b7e2f

MCP is enabled:

PENPOT_AIO_ENABLE_MCP=true
PENPOT_AIO_DEFAULT_FLAGS=enable-smtp enable-mcp enable-access-tokens

The bundled MCP service starts correctly:

Modern Streamable HTTP endpoint:
http://127.0.0.1:4401/mcp

However the generated frontend nginx config contains no MCP routes.

Checked:

/tmp/nginx.conf.template
/etc/nginx/nginx.conf
/etc/nginx/overrides

No references to:

/mcp
/mcp/stream
4401
4402

The public MCP URL generated by Penpot:

https://domain/mcp/stream?userToken=...

returns:

HTTP/2 301
Location: /404

because it falls through to the frontend catch-all.

The README/template states MCP should be:
"proxied through the frontend by default"

Expected:
Frontend nginx should proxy /mcp/stream to the bundled MCP service.