Add tree-sitter example to the eval (#29321)

Interesting things about this example:
* It's a useful, non-trivial change I made with the agent in Tree-sitter
* It runs fast
* It frequently showcases edit file errors
* It occasionally completely errors out due to errors parsing tool call
input JSON

Release Notes:

- N/A
f125353b6fMax Brunsfeld committed on 4/24/2025, 1:46:38 AM· committed by GitHubparentfef2681
2 files changedLine totals unavailable