注意
当前版本的文件和目录已经统一成附件，无法直接从 v0.9 升级，

测试版暂时不提供升级文档，有问题请直接联系我。

重构

- 文件和目录统一成附件 #434
- 控制台移除文件和目录相关页面
- 服务端移除文件和目录相关代码

What's Changed
* optimize: entity and openapi tag and router path by li-guohao inhttps://github.com/ikaros-dev/ikaros/pull/478
* refactor: replace file and folder by attachment. by li-guohao inhttps://github.com/ikaros-dev/ikaros/pull/479
* fix: upload attachment issue by li-guohao inhttps://github.com/ikaros-dev/ikaros/pull/480
* feat: attachment ref update such as subject cover and episodes resources. by li-guohao inhttps://github.com/ikaros-dev/ikaros/pull/481


Full Changelog:https://github.com/ikaros-dev/ikaros/compare/v0.9.0...v0.10.0