1- 2026-10-30 P0 passed: contract written.2- 2026-10-30 P1: audit done; decision to exclude COVID months 2020-03..2021-12 from model training rows.3- 2026-10-30 P2/P3 passed: naive and adl_direct_emp computed; DM test and no-COVID-exclusion sensitivity added.4- 2026-10-30 P4 passed: clean rerun identical, checks in checks.md; gate run (P5 files missing at that time).5- 2026-10-30 P5: report and claims written; final gate run.6