assistant: Display edits from scripts in panel (#26441)

https://github.com/user-attachments/assets/a486ff2a-4aa1-4c0d-be6c-1dea2a8d60c8
 
- [x] Track buffer changes in `ScriptingSession`
- [x] Show edited files in thread

Reviewing diffs and displaying line counts will be part of an upcoming
PR.

Release Notes:

- N/A

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Co-authored-by: Antonio Scandurra <me@as-cii.com>
401342c6ecAgus Zubiaga committed on 3/11/2025, 10:12:52 AM· committed by GitHubparent0df1e4a
5 files changedLine totals unavailable