Refresh git upstream before status and tune Git query polling

- Fetch tracked upstream (throttled + timeout) before `statusDetails` so ahead/behind reflects remote updates
- Add integration coverage for behind-count updates after remote commits
- Configure React Query stale/refetch intervals for git status and branch lists
15959097e5Julius Marminge committed on 2/18/2026, 12:59:57 AMparentba4a62e
3 files changedLine totals unavailable