perf(client-runtime): keep turn and checkpoint refs stable while streaming (#9145)

Co-authored-by: Claude Fable 5.1 <noreply@anthropic.com>
6866fd6b5cTheo Browne committed on 9/2/2026, 1:10:00 AM· committed by GitHubparent7e460f4
2 files changedLine totals unavailable