Why: The measured backup, PITR, and disconnect steps were only in the drill scripts, and the checklist still said those rows were not run. Evidence: Results pgbench-20261012-131948, fault-20261012-142734, and backup-20261012-153441 (SELF). K4 stays failed. Impact: Second-instance write traffic stays closed. The handbook records the upload panic and the short socket path. Refs: feature/u7-ops-drills Co-authored-by: Cursor <cursoragent@cursor.com>