- Add LOOKAHEAD embargo between train/val splits in all 3 WF functions
to prevent label leakage from 6h lookahead window
- Add --ablation flag to train_model.py for signal_strength/side
dependency diagnosis (A/B/C experiment with drop analysis)
- Criteria: A→C drop ≤0.05=good, 0.05-0.10=conditional, ≥0.10=redesign
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
