perf(server): pull request sync reads only threads with linked pull requests (#13704)

Co-authored-by: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
6530de0339Theo Browne committed on 9/26/2026, 2:29:13 AM· committed by GitHubparent75bf92e
12 files changedLine totals unavailable