Curl-and-pipe repair for nodes whose companion-UI manifests are stale
(no session_passthrough): fetches the four current manifests from the
public repo, installs them into /opt/archipelago/apps AND the frontend
runtime payload (which restores over apps/ at every boot), restarts,
and reports the gate probe. Long paste-blocks kept mangling in the
operator's terminal — this replaces them with one short line.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>