API: add option to fetch only tags from ListInbounds

[Jolymmiles]

prev pr #4862

[Fangliding]

所以到底执着于输出一个tag列表做什么 而且还只有入站tag列表

[kastov]

所以到底执着于输出一个tag列表做什么 而且还只有入站tag列表

It can be useful if you need fast and guaranteed delete user X from all inbounds. As I know, currently there is no method for "delete user with email X from all inbounds at once". So you need to know all TAGs of all inbounds which currently in core configuration.

[Jolymmiles]

also we already have method ListOutbounds

[Fangliding]

。。我懂了，你们有一个面板一样的东西。有人订阅到期了要移除他的用户信息，因为是商业面板所以包含了大量用户数据，打印入站配置会打印出非常大量的user信息出来，所以只能这样，到底了还是个机场面板功能。。。

[kastov]

。。我懂了，你们有一个面板一样的东西。有人订阅到期了要移除他的用户信息，因为是商业面板所以包含了大量用户数据，打印入站配置会打印出非常大量的user信息出来，所以只能这样，到底了还是个机场面板功能。。。

yes, exactly. All user management is handled by Panel. In my case – Remnawave (I'm also maintainer of it :D).

https://github.com/remnawave/panel
https://github.com/remnawave/node

Also, we have Typescript wrapper to gRPC API – https://github.com/remnawave/xtls-sdk

Currently Remnawave Node (which handles Xray) is saving inbound tags from raw json config. It is okay, but if we use GRPC Core API, why there is no option just to get tags from core?

[Jolymmiles]

@Fangliding could you approve it, pls?

[Fangliding]

我的意见是至少为出站也添加这个功能
加不加看其他人意见吧

[yuhan6665]

感谢！
还有感谢风扇和大家的讨论让代码更合理