release: bump version to 0.51.0

backend/tests/test_visualization_compute_centers.py

@@ -569,7 +569,19 @@ async def test_collect_compute_center_location_uses_llm_when_candidates_empty(mo
         lambda **_kwargs: ([], ["Mystery Cluster, France"]),
     )
 
-    from app.services.location.llm_fallback import LocationLLMFallbackResult
+    from app.services.location.llm_fallback import LocationLLMFallbackResult, LocationSearchEvidenceResult
+
+    async def _search_evidence(**_kwargs):
+        return LocationSearchEvidenceResult(
+            evidence=[
+                {
+                    "title": "Mystery Cluster source",
+                    "url": "https://example.test/mystery",
+                    "snippet": "Mystery Cluster is in Lyon.",
+                }
+            ],
+            attempted_queries=["web_search:compute_center:Mystery Cluster France physical location"],
+        )
 
     async def _fallback(**_kwargs):
         return LocationLLMFallbackResult(
@@ -578,6 +590,8 @@ async def test_collect_compute_center_location_uses_llm_when_candidates_empty(mo
         )
 
     monkeypatch.setattr(visualization_api, "get_ai_provider_client", AsyncMock(return_value=object()))
+    monkeypatch.setattr(visualization_api, "get_web_search_client", AsyncMock(return_value=object()))
+    monkeypatch.setattr(visualization_api, "collect_location_search_evidence", _search_evidence)
     monkeypatch.setattr(visualization_api, "collect_llm_location_fallback_candidate", _fallback)
 
     response = await visualization_api.collect_compute_center_location(
@@ -595,6 +609,7 @@ async def test_collect_compute_center_location_uses_llm_when_candidates_empty(mo
     assert response["best_candidate"]["needs_confirmation"] is True
     assert response["attempted_queries"] == [
         "Mystery Cluster, France",
+        "web_search:compute_center:Mystery Cluster France physical location",
         "llm_factcheck:compute_center:Mystery Cluster",
     ]