- 2026-10-30 P0 passed: contract written.
- 2026-10-30 P1 audit done: 40 exact dups to drop, 300 missing-outcome 2022 rows, rating_2025 excluded (leakage).
- 2026-10-30 P2/P3 passed (beta 0.264, se 0.041, n 1800). P4 checks pass; running gate.
- 2026-10-30 P4, P5 passed; final gate PASSED.