完善MECMAS21参数配置与分组交互

tests/test_reactflow_project_medium_reference.py

@@ -35,6 +35,11 @@ class ReactFlowProjectMediumReferenceVersionTests(unittest.TestCase):
         project = ReactFlowProjectPayload(name="legacy-project")
 
         self.assertIsNone(project.mediumReferenceVersion)
+        self.assertIsNone(project.amesimParameterEncodingVersion)
+        self.assertNotIn(
+            "amesimParameterEncodingVersion",
+            pydantic_to_jsonable(project),
+        )
 
     def test_xml_export_adds_default_property_model_to_legacy_medium_node(self) -> None:
         project = ReactFlowProjectPayload(