9dc6263b6e
Architect drift review: clean (two [low] items both expected audit by-products, not drift). Bench-regression check: all three exit-code gates green; the 5-metric latency.explicit_at_rc / gc_over_bump improvement cluster from audit-cma earlier today reappears, second consecutive audit showing the same shift uncorrelated with milestone work — baseline left pristine for one more audit before considering ratification. All seven spec acceptance criteria green. Milestone closed.