- M12: note the editor that `git revert -m 1 HEAD` opens (save/close, or --no-edit);
the -m 1 / --no-ff merge teaching is unchanged.
- Refresh stale CI action pins to verified-current majors (actions/checkout @v4->@v7,
actions/setup-python @v5->@v6; confirmed via GitHub Releases, 2026-06) across
M14/M15/M18/M19/M25; add a Verify-before-publish item for pinned action versions.
- M15: scaffold the "slot security steps into the workflow" YAML merge (before/after
diff, indentation caution, copy-whole-job alternative). Planted devices intact.
Closes#43Closes#44Closes#50
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01TfzV5QvtPDz8LJS3Pu5VLT