增加code唯一校验，修改导入返回值

lyh

2025-07-09 e70c3d7a34ad9e9023abd9fc669bdf4e4a082a38

 lxzn-module-eam/src/main/java/org/jeecg/modules/eam/service/IEamMaintenanceStandardService.java

@@ -52,7 +52,7 @@
     * @param maintenanceCategory 保养类型
     * @return
     */
    EamMaintenanceStandard checkDuplicate(String equipmentId, String maintenanceCategory);
    EamMaintenanceStandard checkDuplicate(String equipmentId, String maintenanceCategory,String standardStatus);

    /**
     * 查询标准列表-前端展示该用户拥有的标准