Fix calibration f1 metric fallback

backend/tests/test_sprint124_detection_calibration_sweep.py

@@ -22,6 +22,7 @@ def test_detection_calibration_sweep_reuses_real_data_workflow_and_reports_qa_me
     assert "false_positives" in script
     assert "false_negatives" in script
     assert "quality_score" in script
+    assert 'metrics.get("f1")' in script
     assert "best_by_score" in script
     assert "calibration_summary.json" in script
     assert "demo/workflow" not in script

scripts/run_detection_calibration_sweep.sh

@@ -159,7 +159,7 @@ summary = {
     "quality_score": quality_check.get("score"),
     "precision": metrics.get("precision"),
     "recall": metrics.get("recall"),
-    "f1_score": metrics.get("f1_score"),
+    "f1_score": metrics.get("f1_score", metrics.get("f1")),
     "mean_iou": metrics.get("mean_iou"),
     "matches": findings.get("matches"),
     "false_positives": findings.get("false_positives"),