PBZ-PLAN: correct the live-acceptance message text

The quoted rejection was from the first cut. Re-run against the spare
with the final code, and record that undici gave nothing usable on the
ErrorEvent for a real death.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01PZnUXRsLLnt2A7pR3X4Luj