Align historical metrics with polygon semantics

backend/tests/test_sprint201_semantic_selection_metrics.py

@@ -144,6 +144,26 @@ def test_station_measurement_uses_numeric_mean_without_area_extrapolation() -> N
     assert result["warning"] == "Puntmeting; geen gebiedsdekkend watervolume."
 
 
+def test_regional_historical_polygons_do_not_emit_irrelevant_line_metrics() -> None:
+    dataset = themed_dataset("water", method="intersection_area")
+    dataset.source_metadata["selection_aggregation"].update(
+        {"metric_key": "water_area", "label": "Historische wateroppervlakte", "unit": "ha"}
+    )
+    dataset.provenance_metadata = {"operator_tool": "provision_regional_historical_landuse.py"}
+
+    result = VectorFeatureService.summarize_features_by_bbox(
+        SequenceScalarSession([52_500.0]),
+        dataset=dataset,
+        bbox=BBOX,
+        total_feature_count=23,
+    )
+
+    assert [(item["metric_key"], item["metric_unit"]) for item in result["metrics"]] == [
+        ("water_area", "ha"),
+        ("feature_count", "objecten"),
+    ]
+
+
 def test_future_regional_imports_persist_semantic_aggregation_configuration() -> None:
     buildings = (ROOT / "scripts/provision_regional_grb_buildings.py").read_text(encoding="utf-8")
     context = (ROOT / "scripts/provision_regional_grb_context.py").read_text(encoding="utf-8")

backend/tests/test_sprint209_regional_historical_landuse.py

@@ -228,6 +228,9 @@ def test_upload_contract_is_regional_temporal_and_partition_audited(tmp_path: Pa
     assert source_metadata["partitioned_source_audit"] is True
     assert source_metadata["geometry_clipped_to_area"] is True
     assert source_metadata["identity_stable"] is False
+    assert source_metadata["semantic_metrics"] is False
+    assert source_metadata["selection_aggregation"]["metric_key"] == "roads_area"
+    assert source_metadata["selection_aggregation"]["label"] == "Oppervlakte historische wegen"
     assert provenance["partition_count"] == 28
     assert provenance["raw_source_responses_retained"] is True
     assert provenance["geometry_clipped_to_area"] is True