画布清除

src/components/Canvas/FlowCanvas/manager/StateManager.ts

@@ -183,4 +183,8 @@ export class StateManager {
 		this.nodes.value = JSON.parse(state.nodes)
 	}
 
+	dispose() {
+		this.historyList.value = []
+		this.historyIndex.value = 0
+	}
 }