PraisonAI A2U incomplete authentication fix leaves current serve command unauthenticated by default

Summary The published A2U advisory GHSA-f292-66h9-fpmf says unauthenticated A2U event streaming was fixed in praisonai 4.5.115. Current head still exposes the same A2U subscription and event routes without authentication when the operator starts the documented CLI entrypoint: text praisonai serve...