Eight years after opening with great fanfare, San Francisco's city-subsidized, $12.3 million Lesbian, Gay, Bisexual and Transgender Community Center is on the verge of foreclosure - and is asking the cash-strapped city for a $1 million line of credit to help bail it out. And from the looks of things, the center will probably get it. The thinking: The city has already spent about $5.7 million on the building at Market and Octavia streets and needs to "make sure it doesn't go under," said Supervisor David Campos, who along with fellow gay Supervisor Bevan Dufty is seeking approval of a...