fix(库存管理): 修正包装单位绑定逻辑，添加调试日志

src/views/warehouseManagement/stockManagement/add.vue

@@ -1580,9 +1580,11 @@
       },
       async computeNum(row, index, isClear) {
         row.packingQuantity = this.format3(row.packingQuantity);
+        console.log(row.packingSpecificationOption);
+        console.log(row.packingUnit);
 
         let data = row.packingSpecificationOption.find(
-          (item) => item.conversionUnit == row.packingUnit
+          (item) => item.id == row.packingUnitId
         );
         row.packingUnit = data.conversionUnit;
         // 清空仓库(包装数量输入)