refactor(coal): 提升仓库收货单相关计算精度

- 将 NumberUtils.round2 方法替换为 NumberUtils.round4，提高计算精度到小数点后四位- 修改 BigDecimal 设置小数位数的方法，从 setScale(2, RoundingMode.HALF_UP) 改为 setScale(4, RoundingMode.HALF_UP)

src/main/java/cn/lihongjie/coal/warehouseReceipt/service/WarehouseReceiptService.java

@@ -195,13 +195,13 @@ public class WarehouseReceiptService
         if (!receipt0.getDetail().isEmpty()) {
 
             receipt0.setNumber(
-                    NumberUtils.round2(
+                    NumberUtils.round4(
                             receipt0.getDetail().stream()
                                     .map(WarehouseReceiptDetailEntity::getNumber)
                                     .reduce(0.0, Double::sum)));
 
             receipt0.setAmount(
-                    NumberUtils.round2(
+                    NumberUtils.round4(
                             receipt0.getDetail().stream()
                                     .map(WarehouseReceiptDetailEntity::getAmount)
                                     .reduce(0.0, Double::sum)));
@@ -260,7 +260,7 @@ public class WarehouseReceiptService
                         BigDecimal.valueOf(
                                         ObjectUtils.defaultIfNull(
                                                 warehouseReceiptDetailEntity.getNumber(), 0.0))
-                                .setScale(2, RoundingMode.HALF_UP)
+                                .setScale(4, RoundingMode.HALF_UP)
                                 .doubleValue());
 
                 warehouseReceiptDetailEntity.setAmount(