밑꺽쇠 수정했음!

frontend/lib/registry/components/pivot-grid/utils/pivotEngine.ts

@@ -129,6 +129,7 @@ function buildHeaderTree(
       caption: key,
       level: 0,
       isExpanded: expandedPaths.has(pathKey),
+      hasChildren: remainingFields.length > 0, // 다음 레벨 필드가 있으면 자식 있음
       path: path,
       span: 1,
     };
@@ -195,6 +196,7 @@ function buildChildNodes(
       caption: key,
       level: level,
       isExpanded: expandedPaths.has(pathKey),
+      hasChildren: remainingFields.length > 0, // 다음 레벨 필드가 있으면 자식 있음
       path: path,
       span: 1,
     };
@@ -238,7 +240,7 @@ function flattenRows(nodes: PivotHeaderNode[]): PivotFlatRow[] {
       level: node.level,
       caption: node.caption,
       isExpanded: node.isExpanded,
-      hasChildren: !!(node.children && node.children.length > 0),
+      hasChildren: node.hasChildren, // 노드에서 직접 가져옴 (다음 레벨 필드 존재 여부 기준)
     });
 
     if (node.isExpanded && node.children) {