refactor(approve): 将开始和结束时间字段改为LocalDateTime类型并更新格式

buhuazhen

2026-04-10 1273fd597cbf2fbb710ec32f2cbd5fe00b156d6c

 src/main/java/com/ruoyi/purchase/service/IPurchaseLedgerService.java

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

    AjaxResult importData(MultipartFile file);

    PurchaseLedgerDto getPurchaseByCode(PurchaseLedgerDto purchaseLedgerDto);
}