There is exactly one rule that has never bent at House of Nanking, the cramped, beloved Shanghainese spot in San Francisco’s Chinatown: everyone waits. No one skips the line. Not Francis Ford Coppola, not anyone. So, in 1997, when a young actor in all black turned up hoping for a table, Peter Fang did what he did to everybody. His daughter Kathy, then a starstruck fan, recognized the man instantly and begged her father to let him skip the line. …