EnterMatchmakingMatch broadcast OnSquadMatchmakingSuccess to Clients.All,
so one player deploying pulled every connected player into the match.
Map each player to their SignalR connection (GetSignalRConnection tags the
URL with uid; CycleHub records it via a SignalRConnectionRegistry) and
send the deploy signal only to that connection (broadcast fallback if
unmapped). Also enable m_automaticImportPlatformFriends (Steam friends).
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>