fix: 修复采购订单新增修改，报错

yuan

2026-07-15 e9fb84276805a01d6e665bc04b0999c842433d55

 src/main/java/com/ruoyi/basic/dto/StorageBlobDTO.java

@@ -14,4 +14,9 @@
     * 下载地址
     */
    private String downloadURL;

    /**
     * 文件类型
     */
    private String application;
}