Anna Zavelson thought she was giving herself a break when she signed on to Chinese Republicans. After all, the actress had just performed every night in Masquerade"the guided and immersive take on The Phantom of the Opera. "I was running up the stairs and singing and dancing and doing all this crazy stuff," she says. "I thought there was no way a 90-minute play would be nearly as exhausting." She was wrong. As Zavels…