Feature request: show which subagents are working on the sidebar

[yosit]

It would be helpful to see which subagents are working, how many queued tasks they have and maybe a simpler way to jump to their context. I find the ctrl+x + right/left to be nice but not simple enough to go directly to where you want to go.
Also looking at the current state of which agents are working is useful to see that things are not stuck.

[junhoyeo]

Right now OpenCode doesn't support accessing/changing its TUI from plugins, I'll try to contribute to the main repo thanks!
Trust me I need this too, @yosit 🙏

Duplicated request with #478 (comment)

[Mikec78660]

Would be great if token count could be tracked in the side panel for subagents as well.