Upload files to lmfiles.com and return public download links via API. Use when a user wants CLI-based file hosting, quick share links, bot-accessible file upload, account registration with bootstrap token, file metadata lookup, listing account files, or deleting uploaded files.

将文件上传至 lmfiles.com 并通过 API 返回公共下载链接。适用于用户需要命令行文件托管、快速分享链接、机器人可访问的文件上传、使用引导令牌注册账户、查询文件元数据、列出账户文件或删除已上传文件的场景。