fix: optimize tool node check in workflow (#3002)

* fix: optimize tool node check in workflow

* comment

projects/app/src/web/core/workflow/utils.ts

@@ -352,8 +352,16 @@ export const checkWorkflowNodeAndConnection = ({
       return [data.nodeId];
     }
 
-    // check empty node(not edge)
-    const hasEdge = edges.some(
+    // filter tools node edge
+    const edgeFilted = edges.filter(
+      (edge) =>
+        !(
+          data.flowNodeType === FlowNodeTypeEnum.tools &&
+          edge.sourceHandle === NodeOutputKeyEnum.selectedTools
+        )
+    );
+    // check node has edge
+    const hasEdge = edgeFilted.some(
       (edge) => edge.source === data.nodeId || edge.target === data.nodeId
     );
     if (!hasEdge) {