Merge origin/t3/diff-entry-followup: reject repeated GitCafe diff cursors

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
d135b90addJulius Marminge committed on 10/25/2026, 7:25:15 AMparentsff1ecd71d59a56
2 files changedLine totals unavailable