fix(gateApi): 更新网格交易盈亏计算逻辑

Administrator

2026-05-21 526dc9bd7e7e71e5e18c4dd966d3996e628ae6fa

 src/main/java/com/xcong/excoin/modules/contract/entity/ContractHoldOrderEntity.java

@@ -146,4 +146,9 @@
     * 批次号 队列平仓时使用，避免重复
     */
    public String batchNo;

    /**
     * 持仓费
     */
    private BigDecimal holdAmount;
}