请求添加自定义前端入口

[j2rong4cn]

Please make sure of the following things

• [X] I have read the documentation.
• [X] I'm sure there are no duplicate issues or discussions.
• [X] I'm sure this feature is not implemented.
• [X] I'm sure it's a reasonable and popular requirement.

Description of the feature / 需求描述

我现在使用nginx反代alist直接占用一个域名，希望可以和网站共存。例如我的网址是abc.com是一个博客，而abc.com/alist是alist前端入口，abc.com/alist/dav是alist的webdav入口，，，是我记错了吗，我好像记得以前的版本有自定义入口这个功能的

Suggested solution / 实现思路

No response

Additional context / 附件

No response

[xhofe]

Available at v3