Add per-sample YOLO dataset audit diagnostics

backend/tests/test_sprint146_operator_yolo_dataset_quality_audit.py

@@ -148,6 +148,20 @@ def test_operator_yolo_dataset_quality_audit_reports_dataset_risks(tmp_path: Pat
     assert report["label_stats"]["parsed_label_count"] == 3
     assert report["label_stats"]["invalid_label_count"] == 0
     assert report["min_label_visible_ratio"] == 0.25
+    sample_by_slug = {sample["sample_slug"]: sample for sample in report["sample_summaries"]}
+    assert sample_by_slug["geel"]["parsed_label_count"] == 2
+    assert sample_by_slug["geel"]["invalid_label_count"] == 0
+    assert sample_by_slug["geel"]["small_box_share"] == 0.5
+    assert sample_by_slug["geel"]["median_box_area"] == 0.00505
+    assert sample_by_slug["geel"]["quality_warnings"] == [
+        "median_box_area_below_gate",
+        "small_box_share_above_gate",
+    ]
+    assert sample_by_slug["turnhout"]["parsed_label_count"] == 1
+    assert sample_by_slug["turnhout"]["small_box_share"] == 0.0
+    assert sample_by_slug["turnhout"]["quality_warnings"] == ["median_box_area_below_gate"]
+    assert sample_by_slug["postel_bos"]["parsed_label_count"] == 0
+    assert sample_by_slug["postel_bos"]["quality_warnings"] == []
 
     warning_codes = {warning["code"] for warning in report["warnings"]}
     assert "positive_sample_count_below_gate" in warning_codes