feat: stabilize multi-region runtime sync and worker orchestration

domain-api/tests/test_ops_service_activity.py

@@ -10,6 +10,35 @@ class OpsServiceActivityTests(unittest.TestCase):
     def _runtime_status(detect: Optional[dict] = None) -> dict:
         return {"detect": dict(detect or {})}
 
+    @patch("app.services.ops_service.get_ops_runbook", return_value={"control_sequences": []})
+    @patch("app.services.ops_service.list_release_rollouts", return_value=[])
+    @patch("app.services.ops_service.list_ops_jobs", return_value=[])
+    @patch("app.services.ops_service.get_recent_ops_playbook_runs", return_value={"runs": []})
+    @patch("app.services.ops_service.list_managed_nodes_with_agent_state", side_effect=AssertionError("should reuse managed nodes"))
+    @patch("app.services.ops_service.get_runtime_status", side_effect=AssertionError("should reuse runtime status"))
+    def test_activity_stream_reuses_provided_runtime_and_managed_snapshots(
+        self,
+        _mock_get_runtime_status,
+        _mock_list_managed_nodes_with_agent_state,
+        _mock_get_recent_ops_playbook_runs,
+        _mock_list_ops_jobs,
+        _mock_list_release_rollouts,
+        mock_get_ops_runbook,
+    ) -> None:
+        runtime_snapshot = self._runtime_status()
+        managed_snapshot = {"nodes": []}
+        payload = get_ops_activity_stream(
+            limit=10,
+            scan_limit=20,
+            runtime_status=runtime_snapshot,
+            managed_nodes_payload=managed_snapshot,
+        )
+
+        self.assertEqual([], payload["items"])
+        self.assertEqual(0, payload["summary"]["total"])
+        self.assertEqual(runtime_snapshot, mock_get_ops_runbook.call_args.kwargs["runtime_status"])
+        self.assertEqual(managed_snapshot, mock_get_ops_runbook.call_args.kwargs["managed_nodes_payload"])
+
     @patch("app.services.ops_service.get_ops_runbook")
     @patch("app.services.ops_service.list_release_rollouts")
     @patch("app.services.ops_service.list_ops_jobs")