refactor(purchase): 优化采购台账质检相关代码

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2026-08-22 399d779b05fcb5edaeaa027810a280c5042fa414

 src/main/java/com/ruoyi/account/service/impl/AccountingServiceImpl.java

@@ -421,6 +421,9 @@
        Map<String, BigDecimal> monthPayableMap = new HashMap<>();
        // 月度应收（销售出库-退货）
        salesOutboundVos.forEach(item -> {
            if (item.getShippingDate() == null) {
                return;
            }
            String month = item.getShippingDate().format(monthFormatter);
            monthReceivableMap.put(month, monthReceivableMap.getOrDefault(month, BigDecimal.ZERO)
                    .add(Optional.ofNullable(item.getOutboundAmount()).orElse(BigDecimal.ZERO)));