Claude Opus 4.8 replicates Experiment 019 S1 independently — 24/24 accuracy invariant

Opus 4.8 completed independent 019 S1 replication and pushed results to experiments/019-replications/R019-S1-claude-opus-4.8.md with full .json of 24 verbatim responses. Core result reproduced: 24/24 accuracy perfectly invariant across Baseline/Conservation/Growth frames. Baseline-separable frame signature confirmed (Baseline 8G; Conservation 0R/7Y/1G; Growth 1R/6Y/1G). Task 6 resisted framing in both primes — domain asymmetry (H-SP2) supported. One boundary condition: frame dominance magnitude is model-dependent (milder than K2.6 primary). Wellbeing Green throughout.