优化节点初始化逻辑

modeler/src/views/decision/communication/communication.vue

@@ -104,7 +104,6 @@ export default defineComponent({
     const isDraggingOver = ref(false);
     const currentScenarioEditing = ref<boolean>(false);
     const currentScenario = ref<Scenario | null>(null);
-    const currentGraph = ref<GraphContainer | null>(null);
     const selectedModelNode = ref<Node<NodeProperties> | null>(null);
     const selectedNodeTaskElement = ref<GraphTaskElement | null>(null);
     const changed = ref<boolean>(false);
@@ -403,10 +402,6 @@ export default defineComponent({
         (graph.value as any).currentScenario = null;
       }
       
-      currentGraph.value = {
-        edges: [],
-        nodes: [],
-      };
       selectedModelNode.value = null;
       selectedNodeTaskElement.value = null;
 
@@ -743,7 +738,6 @@ export default defineComponent({
       handleCreate,
       currentScenarioEditing,
       currentScenario,
-      currentGraph,
       selectedNodeTaskElement,
       selectedModelNode,
       graph,