1- 2026-10-30 P0 passed: contract written. P1 started.2- 2026-10-30 P1 passed: data audited, hashes match; 2025-10 UNRATE missing (outside window).3- 2026-10-30 P2/P3 passed: analysis.py written; HAC lag 4; decided to add supplementary HAC Wald/variance-ratio tests because classical Chow assumes equal variances.4- 2026-10-30 P4 passed: deterministic rerun, all checks pass.5- 2026-10-30 P5 passed: report and claims written. Task complete.6