Closes #50427.

Before you mark this PR as ready for review, make sure that you have:
- [x] Added a solid test coverage and/or screenshots from doing manual
testing
- [x] Done a self-review taking into account security and performance
aspects
- [x] Aligned any UI changes with the [UI
checklist](https://github.com/zed-industries/zed/blob/main/CONTRIBUTING.md#uiux-checklist)

The changes respect your current theme + mimic the existing UI when it
comes to font size+weight.

<img width="437" height="131" alt="image"
src="https://github.com/user-attachments/assets/89f6c5d0-d1a3-478a-88e9-7d203240416d"
/>


https://github.com/user-attachments/assets/a5fb6c82-fffd-494f-a374-9296d1690736

Release Notes:

- Allow selection of commands from tool calls