BUILDER.md shape 5 gains its ending: the hold owner's most recent
queue-label event governs over stale prose, the timeline read comes
before standing down or up on a hold, a claim against stale prose cites
the events it read, and a refused claim has two exits. TRIAGE.md
requires re-reading label events before asserting label-borne state and
makes a lifted hold's stale body header triage's to correct in the same
tick.
Closes#154
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
