feat(aci): add description to detector serializer

Author: ameliahsu

src/sentry/workflow_engine/endpoints/serializers/detector_serializer.py

@@ -175,6 +175,7 @@ def serialize(self, obj: Detector, attrs: Mapping[str, Any], user, **kwargs) ->
             "id": str(obj.id),
             "projectId": str(obj.project_id),
             "name": obj.name,
+            "description": obj.description,
             "type": obj.type,
             "workflowIds": attrs.get("workflow_ids"),
             "owner": attrs.get("owner"),

tests/sentry/workflow_engine/endpoints/serializers/test_detector_serializer.py

@@ -33,6 +33,7 @@ def test_serialize_simple(self) -> None:
             "id": str(detector.id),
             "projectId": str(detector.project_id),
             "name": "Test Detector",
+            "description": None,
             "type": MetricIssue.slug,
             "createdBy": None,
             "dateCreated": detector.date_added,
@@ -75,6 +76,7 @@ def test_serialize_full(self) -> None:
         detector = self.create_detector(
             project_id=self.project.id,
             name="Test Detector",
+            description="A full featured detector",
             type=MetricIssue.slug,
             workflow_condition_group=condition_group,
             owner_user_id=self.user.id,
@@ -115,6 +117,7 @@ def test_serialize_full(self) -> None:
             "id": str(detector.id),
             "projectId": str(detector.project_id),
             "name": "Test Detector",
+            "description": "A full featured detector",
             "type": MetricIssue.slug,
             "createdBy": str(self.user.id),
             "dateCreated": detector.date_added,