Code review panel doesn't refresh after .git/info/exclude changes

Describe the bug After adding a path to .git/info/exclude, Warp's code review panel keeps showing the excluded files as changes. Git reports a clean working tree. Restarting Warp clears the stale entries, so the exclude file is respected, but changes to it are not picked up live.

To reproduce

1. In any git repo, create an untracked directory, e.g. .codegraph/.
2. Open the code review panel — .codegraph/ is listed as a change (expected).
3. Add it to the local exclude file: echo .codegraph/ >> .git/info/exclude
4. Run git status --short — output is empty.
5. Check the code review panel again.

Expected behavior The panel updates to match git status and drops the excluded files, the same way it would after a .gitignore edit.

Actual behavior The panel keeps showing the excluded files until Warp restarts.

Environment

• OS: macOS (Darwin 25.6.0)
• Warp version: v0.2026.10.21.08.25.stable_02