CI / ledger-and-tools (push) Successful in 20s
Containment (intersection over the smaller area) between human-drawn crystal pairs never exceeds 0.42, while the model-drawn duplicates sit at 0.96-1.0, so a rule at 0.9 cannot lose a real pair. On 231 unseen frames, v4: precision 0.831 -> 0.876, recall 0.881 -> 0.869, F1 0.855 -> 0.873, 46 outlines removed, 8 true positives lost where the less confident of two outlines was the one matching the label. Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>