Broadcasts matchmaking events to users.
Core publishes on the matchmaking:user:<id> PubSub topic; the user
channel subscribes on join and forwards to the client (same shape as the
tournament events). Core never references the web endpoint directly.
Summary
Functions
Notifies every matched user that a lobby has been found.
Functions
@spec match_found([map()], Ecto.UUID.t()) :: :ok
Notifies every matched user that a lobby has been found.