1- 2026-10-30 P0 passed: contract written.2- 2026-10-30 P1: audit done; decided to ignore cpi_assembled.csv for computation (shift/vintage errors), keep 2025-10 missing.3- 2026-10-30 P2-P5 passed: results computed (308/309 months), verified (identical re-run), report and claims written.4