feat(hooks): add condition edge label sync for switch nodes

Implement label synchronization for condition edges originating from switch nodes. The hook now automatically updates edge labels based on the connected condition's properties, similar to how it handles simple edges.

Author: Kshitiz1403

src/lib/src/hooks/useEdgeLabelSync.js

@@ -9,7 +9,9 @@ export function useEdgeLabelSync(nodes, edges, updateEdges) {
     let hasChanges = false;
     const updatedEdges = edges.map(edge => {
       const targetNode = nodes.find(node => node.id === edge.target);
+      const sourceNode = nodes.find(node => node.id === edge.source);
 
+      // Handle simple edges (non-switch nodes)
       if (targetNode && edge.label && edge.label.startsWith('→')) {
         const expectedLabel = `→ ${targetNode.data?.name || targetNode.data?.label || 'next'}`;
 
@@ -19,6 +21,30 @@ export function useEdgeLabelSync(nodes, edges, updateEdges) {
         }
       }
 
+      // Handle condition edges from switch nodes
+      if (sourceNode && sourceNode.type === 'switch' && edge.sourceHandle && edge.sourceHandle.startsWith('condition-')) {
+        const conditionIndex = parseInt(edge.sourceHandle.replace('condition-', ''));
+        const conditions = sourceNode.data?.dataConditions || sourceNode.data?.eventConditions || [];
+        const condition = conditions[conditionIndex];
+        
+        // Determine expected label based on condition type
+        let expectedLabel = '';
+        if (condition) {
+          if (sourceNode.data?.conditionType === 'event') {
+            expectedLabel = condition.name || condition.eventRef || `event${conditionIndex + 1}`;
+          } else {
+            expectedLabel = condition.name || condition.condition || `condition${conditionIndex + 1}`;
+          }
+        } else {
+          expectedLabel = `condition${conditionIndex + 1}`;
+        }
+        
+        if (edge.label !== expectedLabel) {
+          hasChanges = true;
+          return { ...edge, label: expectedLabel };
+        }
+      }
+      
       return edge;
     });