fix: enforce assistant data quality disclosures

backend/tests/test_sprint202_temporal_metrics_and_ollama.py

@@ -98,6 +98,51 @@ def test_geo_assistant_recognizes_dutch_historical_questions(question: str) -> N
     assert GeoAssistantService.history_requested(question) is True
 
 
+def test_geo_assistant_discloses_estimated_population_values() -> None:
+    metrics = [
+        AssistantContextMetric(
+            theme="population",
+            label="Geschatte bevolking",
+            value=74_254,
+            unit="personen",
+            source="Statbel",
+            dataset_id=uuid4(),
+            is_estimate=True,
+        )
+    ]
+
+    answer = GeoAssistantService.ensure_estimate_disclosure(
+        "De bevolking bedraagt 74.254 personen.",
+        metrics,
+    )
+
+    assert answer.startswith(
+        "Datakwaliteit: bevolkingswaarden in dit antwoord zijn schattingen volgens de bronmetadata, "
+        "geen exacte tellingen."
+    )
+
+
+def test_geo_assistant_does_not_add_irrelevant_estimate_disclosure() -> None:
+    metrics = [
+        AssistantContextMetric(
+            theme="population",
+            label="Geschatte bevolking",
+            value=74_254,
+            unit="personen",
+            source="Statbel",
+            dataset_id=uuid4(),
+            is_estimate=True,
+        )
+    ]
+
+    answer = GeoAssistantService.ensure_estimate_disclosure(
+        "De bosoppervlakte bedraagt 3.626,56 hectare.",
+        metrics,
+    )
+
+    assert answer == "De bosoppervlakte bedraagt 3.626,56 hectare."
+
+
 def test_geo_assistant_sends_grounded_context_without_thinking_trace(monkeypatch) -> None:
     service = GeoAssistantService(ollama_settings())
     project_id = uuid4()
@@ -161,6 +206,7 @@ def test_geo_assistant_sends_grounded_context_without_thinking_trace(monkeypatch
     assert "scope.label is het exact geanalyseerde gebied" in captured["payload"]["messages"][0]["content"]
     assert "noem de waarde verplicht een schatting" in captured["payload"]["messages"][0]["content"]
     assert "verzin geen oorzaak, voorspelling, verzadiging" in captured["payload"]["messages"][0]["content"]
+    assert "bereken zelf geen gemiddelde, tempo, oorzaak of afgeleide trend" in captured["payload"]["messages"][0]["content"]
     assert "zonder Markdown-symbolen" in captured["payload"]["messages"][0]["content"]
     assert "water_volume_available" in captured["payload"]["messages"][0]["content"]