fix(observability): T3 Connect tracing stops at the relay boundary (#16314)

Co-authored-by: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
25f0b2a1b7Julius Marminge committed on 10/6/2026, 5:04:51 AM· committed by GitHubparentff397a2
12 files changedLine totals unavailable