feat: expose explicit source conflicts

apps/api/tests/test_api.py

@@ -55,6 +55,20 @@ def test_activity_filters_and_explains_score() -> None:
     assert payload["items"][0]["unique_players"] == 3
     assert "3 свежих улова" in payload["items"][0]["explanation"]
     assert payload["items"][0]["sources"] == ["manual-import"]
+    assert payload["items"][0]["source_conflicts"] == []
+
+
+def test_explicit_source_conflict_is_exposed_on_activity_and_spot() -> None:
+    with Session(engine) as db:
+        report = db.scalar(select(CatchReport).where(CatchReport.waterbody.has(slug="test-lake")))
+        assert report is not None
+        report.raw_payload = {"provenance": {"conflicts": ["координаты: 10:20 · 11:21"]}}
+        spot_id = report.spot_id
+        db.commit()
+    activity = client.get("/api/v1/activity?waterbody=test-lake&fish=pike&hours=6").json()
+    assert activity["items"][0]["source_conflicts"] == ["координаты: 10:20 · 11:21"]
+    spot = client.get(f"/api/v1/spots/{spot_id}").json()
+    assert spot["source_conflicts"] == ["координаты: 10:20 · 11:21"]
 
 
 def test_waterbody_catalog_exposes_nullable_source_provenance() -> None: