优化dnc，设备结构树查询，优化原有代码

lyh

2025-04-11 2cf1565485060fd56e1f1f1cffbba7a4d70d42a6

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package org.jeecg.modules.base.mapper;
 
import com.baomidou.mybatisplus.core.mapper.BaseMapper;
import org.jeecg.modules.base.entity.SupplierCategory;
 
public interface SupplierCategoryMapper extends BaseMapper<SupplierCategory> {
 
}