Idempotent attended update of the live coordinator to WS0-WS5: rsync repo +
handbook, install fastapi/uvicorn, append AGENT_TEAM_API_TOKEN/SEA_HAVEN_HANDBOOK_DIR
to secrev.env if absent, restart the daemon, smoke tests. HTTP API is an opt-in
separate step; P3 dispatch stays inert. Snapshot-first + confirm before restart.
