fix: incorrect phase reduction order

src/pages/VisProgPage/visualProgrammingUI/nodes/StartNode.tsx

@@ -1,9 +1,9 @@
 import {
-  Handle,
   type NodeProps,
   Position,
   type Node,
 } from '@xyflow/react';
+import LimitedConnectionCountHandle from "../components/CustomNodeHandles.tsx";
 import { Toolbar } from '../components/NodeComponents';
 import styles from '../../VisProg.module.css';
 
@@ -31,7 +31,13 @@ export default function StartNode(props: NodeProps<StartNode>) {
         <div className={"flex-row gap-sm"}>
           Start
         </div>
-        <Handle type="source" position={Position.Right} id="source"/>
+        <LimitedConnectionCountHandle
+          node_id={props.id}
+          type="source"
+          position={Position.Right}
+          connection_count={1}
+          id="source"
+        />
       </div>
     </>
   );