“Universal Fan Fest Nights” is a weirdly muted name for what has quickly become Universal Hollywood’s best event. It evokes meet-and-greets and celebrity signings, fans lining up at folding tables in stark convention centers to spend a few seconds with a Star Trek actor. Last year’s debut Fan Fest made it clear Universal had far grander ambitions, though; its Star Trek experience took guests through a detailed recreation of the Enterprise, using…