The list('/') call fired immediately after connect(), but the
WebSocket was still in CONNECTING state so send() silently dropped
the message. Now buffers the initial list request and sends it
in the onopen callback.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
NPM forwards /api/* correctly but silently drops WebSocket upgrades on
/ws/* despite toggle being enabled and custom nginx config. Moving
gateways to /api/ws/terminal and /api/ws/sftp so they ride the same
proxy rules that already work for REST endpoints.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>