"""
PitchEcho scoring validation framework.

Statistical validation of the Pass Score formula covering:
- Baseline comparison (random, distance-only, zone-only, etc.)
- Significance tests (Mann-Whitney, AUC-ROC, binomial)
- Sensitivity analysis (weight sweep, ablation, pressure deep-dive)
- Repeatability (split-half reliability, bootstrap CIs, cross-match)
- Consistency (dimension correlations, perturbation stability, stage-wise)
"""
