fix: 입고 목록 API 응답 필드 매핑 누락 수정

- transformApiToListItem에 specification, receivingDate, createdBy 필드 추가
- 리스트에서 규격, 입고일, 작성자가 정상 표시되도록 수정

src/components/material/ReceivingManagement/actions.ts

@@ -305,12 +305,15 @@ function transformApiToListItem(data: ReceivingApiData): ReceivingItem {
     orderNo: data.order_no || data.receiving_number,
     itemCode: data.item_code,
     itemName: data.item_name,
+    specification: data.specification,
     supplier: data.supplier,
     orderQty: parseFloat(String(data.order_qty)) || 0,
     orderUnit: data.order_unit || 'EA',
     receivingQty: data.receiving_qty ? parseFloat(String(data.receiving_qty)) : undefined,
+    receivingDate: data.receiving_date,
     lotNo: data.lot_no,
     unit: data.order_unit || 'EA',
+    createdBy: data.creator?.name,
     status: data.status,
   };
 }