Add some more logging to diagnose lost FS events and stale git state (#57173)

Self-Review Checklist:

- [x] I've reviewed my own diff for quality, security, and reliability
- [x] Unsafe blocks (if any) have justifying comments
- [x] The content is consistent with the [UI/UX
checklist](https://github.com/zed-industries/zed/blob/main/CONTRIBUTING.md#uiux-checklist)
- [x] Tests cover the new/changed behavior
- [x] Performance impact has been considered and is acceptable

Release Notes:

- N/A

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Co-authored-by: Ben Kunkle <ben@zed.dev>
57a64fc824Cole Miller committed on 5/19/2026, 5:53:00 PM· committed by GitHubparent0d832bc
5 files changedLine totals unavailable