fix(sales): 修正统计起始日期计算月份数

buhuazhen

2026-04-21 c6cf54951e6692ecabf8c3e5b6cf5c66d315ce7f

 src/main/java/com/ruoyi/sales/dto/InvoiceRegistrationDto.java

@@ -23,4 +23,7 @@
    @ApiModelProperty(name = "合同金额")
    private BigDecimal contractAmount;

    @ApiModelProperty(name = "未开票金额")
    private BigDecimal noInvoiceAmountTotal;

}