fix(pilot): freeze AI labels and enforce auditable execution

docs/experiments/P0-pilot.md

@@ -2,7 +2,18 @@
 
 Experiment ID **P0**, Phase 0. Registry and conventions: [README.md](README.md).
 
-Status: **approved 2026-10-22; labels pending. No detector has been run and no API spend has occurred.**
+Status: **approved 2026-10-22; 65 AI labels frozen 2026-10-28; detector execution pending explicit data-transfer approval. No pilot API request has been sent.**
+
+Owner amendment (2026-10-28, in the execution chat): Codex now handles preparation,
+annotation, detector execution and reporting; Kimi's participation is no longer required.
+The frozen labels are from one AI annotator, **not human ground truth**. The annotator saw
+the detector implementation and aggregate compile counts before labeling, but did not see
+per-item compiler outcomes or detector outputs. This departs from the original labeling plan;
+any resulting decision is provisional and cannot substitute for an independent human audit.
+Decision thresholds, detector prompts and the concept table remain fixed. Implementation
+repairs before the first paid call restore the complementary-signal PARTIAL rule, exclude
+minor drift from the primary wrong-versus-faithful comparison, enforce the cumulative HTTP
+request budget, and persist run identity and usage. See `experiments/P0-pilot/README.md`.
 Written 2026-10-22. Companion to `docs/research-plan.md` (what and why), `docs/TODO.md` (task list), `docs/acl-2027-bar.md` (bar). Target: ACL 2027 via ARR, deadline 4 Jan 2027 AoE.
 
 ## 1. Decision (approved by the owner on 2026-10-22)