1- 2026-10-30 P0: contract written.2- 2026-10-30 P1: audit done; assembled file found erroneous (stale overlap, missing 2016-07, one-month shift); decided to use vintage files only. 2025-10 missing in latest vintage -> g missing, feasibility "partial".3- 2026-10-30 P2/P3: analysis.py written; baseline = direct unconditional means (the task's sub-period mean 2001-2013 is labelled baseline).4- 2026-10-30 P4: reproducibility and consistency checks passed; gate run.5- 2026-10-30 P5: report and claims written; gate re-run.6- 2026-10-30 Final gate receipt 20261030T043506.713614Z PASSED; all phases passed.7