Nan Park ImagesAh, but is it art? In San Francisco, the term "Arts Commission" is misleading. This is not merely a roomful of wealthy dowagers deciding where to place a bust of Adolph Sutro. A small percentage of funds expended on development projects in the city, by law, are sent the commission's way -- and that translates into millions of dollars a year. The city owns nearly 3,300 works of art valued at roughly $86 million. The Arts Commission is a big deal. So it was a commensurate big dea