9b9aa35f13
- T4.2/T4.3 (M4): anomaly JSON parse 1.00, usability 0.92; stage2 ckpt 0.81 loss, 10.03GB. - T5.6 (M5): ablation change_rate 0.98 ✅, QA mean 2.45 vs pure_llm 0.88 ✅, reproducible w/ trivial ✅; VUS-PR below baseline (honest negative — anomaly localization is the weak point, documented with mitigation directions). - All M1-M5 tasks now closed; real-benchmark download deferred.