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/purchase/service/IPurchaseLedgerService.java

@@ -43,4 +43,6 @@
    String getPurchaseNo();

    AjaxResult importData(MultipartFile file);

    PurchaseLedgerDto getPurchaseByCode(PurchaseLedgerDto purchaseLedgerDto);
}