fix(server): threads settle as soon as a client sees their PR merge (#16761)

Co-authored-by: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
cd41c4ada0Theo Browne committed on 10/7/2026, 8:38:47 AM· committed by GitHubparentc93080b
4 files changedLine totals unavailable