1- 2026-10-30 P0 passed: contract written.2- 2026-10-30 P1 passed: design consistent, no exclusions.3- 2026-10-30 P2,P3 passed (baseline + full simulation); P4 passed (reproducibility, 17 checks). Decision: WCB critical value = ceil(0.95B)-th order statistic.4- 2026-10-30 P5 passed: report.md, claims.json written. Task complete.5