- 2026-10-30 P0 passed: contract written.
- 2026-10-30 P1 passed: audit written, 215 missing rows, no violations.
- 2026-10-30 P2/P3 passed: analysis.py written; baseline RMSE and weekday model computed; Welch chosen for contrast.
- 2026-10-30 P4 passed: reproducibility & cross-checks; gate run 1 (P5 files pending).
- 2026-10-30 P5: report and claims written; final gate run.
- 2026-10-30 final gate PASSED (20261030T051949.894936Z). Task complete.