fix(test): wrap handler construction in RequestDTOFactory patch

ListRequestsHandler now eagerly instantiates RequestDTOFactory in
__init__ (factory hoist).  The previous test patched the factory after
the handler was already constructed, so the patch had no effect and
the real factory accessed attributes the SimpleNamespace mock did
not define (e.g. last_status_check).  Move the construction inside
the patch context and re-target the patch at the import site.

Author: fgogolli

tests/unit/application/queries/test_list_requests_filter_by_type.py

@@ -82,22 +82,24 @@ def _run_handler_with_requests(all_requests, query):
     mock_uow_factory = MagicMock()
     mock_uow_factory.create_unit_of_work.return_value = mock_uow
 
-    handler = ListRequestsHandler(
-        uow_factory=mock_uow_factory,
-        logger=mock_logger,
-        error_handler=mock_error_handler,
-        generic_filter_service=mock_filter_service,
-    )
-
-    # Patch RequestDTOFactory so we don't need full domain wiring
-    with patch("orb.application.factories.request_dto_factory.RequestDTOFactory") as MockFactory:
+    # Patch RequestDTOFactory at the import site so we don't need full domain wiring.
+    # Patch must wrap handler construction because the handler eagerly instantiates
+    # self._dto_factory = RequestDTOFactory() in __init__.
+    with patch("orb.application.queries.request_query_handlers.RequestDTOFactory") as MockFactory:
         mock_dto_factory = MagicMock()
         MockFactory.return_value = mock_dto_factory
         mock_dto_factory.create_from_domain.side_effect = lambda req, machines: SimpleNamespace(
             request_id=str(req.request_id.value),
             request_type=req.request_type.value,
         )
 
+        handler = ListRequestsHandler(
+            uow_factory=mock_uow_factory,
+            logger=mock_logger,
+            error_handler=mock_error_handler,
+            generic_filter_service=mock_filter_service,
+        )
+
         import asyncio
 
         return asyncio.run(handler.execute_query(query))