zeta2: Support `edit prediction: clear history` (#38808)

Release Notes:

- N/A

Co-authored-by: Agus Zubiaga <agus@zed.dev>
6b646e3a14Bennet Bo Fenner committed on 9/24/2025, 5:44:03 PM· committed by GitHubparente653cc9
2 files changedLine totals unavailable