5 real cc-ci runs (samever-deploy @ cc-ci main): Run B nightly steady-state step-back custom-html 1.11.0+1.29.0→1.13.0+1.31.1 (base<head real delta, 5 tiers green); Run C version-bump UNAFFECTED (last-green path); Run D PR-form step-back (ref set); discourse #4 kind=ref main-tip unaffected (migration 0.8.1→1.0.0 green); hedgedoc spot-check step-back 3.0.9→3.0.10 green. WHAT/HOW/EXPECTED/WHERE in STATUS-samever.md; logs /root/samever-*.log, artifacts /var/lib/cc-ci-runs/samever-*/ on cc-ci.
WHAT/HOW/EXPECTED/WHERE in STATUS-samever.md. Adversary: cold pytest tests/unit/test_upgrade_base.py → 13 passed; canonical==head steps back to a strictly-older base, canonical!=head unchanged, no-older→declared skip.