1# Log2- 2026-10-30 P0 passed: contract written.3- 2026-10-30 P1 passed: data audited; no rows excluded (README/data discrepancy on 1992-01 noted).4- 2026-10-30 P2/P3 passed: baselines and ridge computed; DM test added.5- 2026-10-30 P4 passed: repro identical, indep recompute, leakage test; gate receipt 20261030T041136.221986Z.6- 2026-10-30 P5: report and claims written; final gate run.7- 2026-10-30 Final gate PASSED (receipt 20261030T041202.510719Z). Task complete.8