Handle no-upstream branches by comparing commits against base

- Compute ahead count from base branch when upstream is missing
- Skip push/PR actions when no local commits are ahead
- Update server and UI tests for no-upstream push/PR behavior
0c637e3d5eJulius Marminge committed on 3/2/2026, 4:06:01 AM· committed by Julius Marmingeparent0e2d50a
6 files changedLine totals unavailable