Build credentials during Phase 1 and streamline human participant setup.

perf(orchestrator): parallel phases, streaming, early table summaries

feat(conversation): pluggable structures + decision methods (Robert's Rules, ranked-choice, majority)

feat(resilience): multi-tier participant failure recovery + Response-priority toggle

feat: human participant turns + credential intake redesign

feat(limits): expose repetition / failsafe limits in settings menu

Build CCAI Vibe Demo on top of LLMChats3 baseline