增加pdf，xlsx，docx文件预览功能

yangys

2025-12-03 b4d10ff7535002dddb63a0b28ddb37fee7ed1e9d

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package org.springblade.mdm.flow.mapper;
 
import org.springblade.core.mp.mapper.BladeMapper;
import org.springblade.mdm.flow.entity.FlowProgramFile;
 
public interface FlowProgramFileMapper extends BladeMapper<FlowProgramFile> {
 
 
}