- Math-rendering audits move to binder/tools/audit/math_render/, beside
the other book audits. Their repo anchor, usage lines, the CodeQL
ignore path, and binder's render-audit scope follow. The scope now
resolves the script from the repo root; it previously looked under
the book directory, where the script never lived.
- The Playwright release smoke checks move to scripts/release-smoke/.
- The StaffML lint-calibration consensus record moves to
staffml/vault/docs/lint_calibration/, where enums.py cites it.
- The one-off phase_b..phase_g cleanup manifests, the unused playbook
validator, and the tools README are removed; git history keeps them.
