### Changed

- Doctrine names the second `Closes #N` exception: a same-repo PR whose
  authorizing issue marks an acceptance criterion post-merge uses `Refs #N`,
  and triage closes the issue by hand on the evidence — merging #143
  auto-closed #137 with exactly such a criterion unmet, and no role had been
  told otherwise. TRIAGE.md now requires a post-merge criterion to carry its
  own mechanism (post-merge, triage closes, `Refs #N`), REVIEWER.md lists
  `Refs #N` beside `Closes #N` and `Part of <owner>/<repo>#N` and stops
  treating the reference-only PR as a defect, and CONTRIBUTING.md points at
  BUILDER.md as the rule's one home (#151).