backend/models/runtime_refinement_report.json

{
  "version": "runtime-screening-refiner-v1",
  "method": "logistic-regression",
  "validation_size": 44,
  "selected_threshold": 0.54,
  "metrics_before": {
    "accuracy": 0.8636,
    "precision": 0.75,
    "recall": 0.8571,
    "f1": 0.8
  },
  "metrics_after": {
    "accuracy": 0.8864,
    "precision": 0.8462,
    "recall": 0.7857,
    "f1": 0.8148
  },
  "stage_metrics_after": {
    "accuracy": 0.9091,
    "precision": 0.8571,
    "recall": 0.8571,
    "f1": 0.8571
  }
}