增加pdf，xlsx，docx文件预览功能

yangys

2025-12-03 fdb0ed498f295b50c072c4b3652c08e2d60a747a

 src/views/flow/todolist.vue

@@ -892,8 +892,9 @@
            let goApprove = true;
            if(this.row.taskDefinitionKey==='programmingTask' || this.row.taskDefinitionKey==='cureProgramTask'){
                programOnMachine = this.$refs.todolistLeft.programOnMachine?'Y':'N';

       
                let atts = this.$refs.todolistLeft.tableData;
                 console.error('atts',atts);
                let otherFileCOunt = atts.filter(att => att.program === false).length;
                if(otherFileCOunt == 0 && programOnMachine != 'Y'){
                    let confirResult = await this.$confirm('文件列表中无其他文件，确认要提交吗？', '', {