* test(#3177): failing-first guard for stale Agent() dispatch claim * fix(#3177): correct stale Claude Code Agent() dispatch claim * fix(#3177): apply review findings and cover debug.md dispatch * fix(#3177): fit execute-phase correction under the 93400 byte margin * docs(#3177): clarify changeset covers both debug dispatches * chore(#3177): backfill changeset PR number --------- Co-authored-by: sim <sim@local>