* fix(#4624): persist orchestrator-worktree worker lifecycle records * fix(#4624): address review findings on the worker lifecycle protocol * fix(#4624): require the summary path and surface torn records on status --path * fix(#4624): distinguish no-record from torn-record, tolerate older shims in the sweep * docs(#4624): backfill changeset PR number --------- Co-authored-by: sim <sim@local>