{
  "threshold": 0.5,
  "abstain_low": 0.44,
  "abstain_high": 0.56,
  "tta_enabled": true,
  "tta_weights": [0.5, 0.25, 0.25],
  "note": "threshold fijo 0.50 | TTA sobre textos originales (no tokens) | pesos [original, truncate, span_mask]"
}