fix: bom结构支持拖拉拽

gongchunyi

2026-09-01 af9bd8d2f33bdac39400a94c46db45f48094d8cc

 src/components/Dialog/FileListDialog.vue

@@ -77,6 +77,7 @@
                @pagination="paginationSearch"
                @change="handleChange" />
  </el-dialog>
<!-- // todo 附件预览相关 -->
  <filePreview v-if="showPreview"
               ref="filePreviewRef" />
</template>