Rework GH Project status logic to reflect triage runbook (#55845)

Self-Review Checklist:

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

Closes #ISSUE

Release Notes:

- N/A
538151a55eLucas White committed on 5/6/2026, 3:22:50 PM· committed by GitHubparent00d8d45
1 file changedLine totals unavailable