After seven years, Jeanty at Jack's foldedThe city's highest-profile closures last month were Jack Falstaff and Jeanty at Jack's. PlumpJack Group announced the closure of Falstaff, its SOMA fine-dining outpost, in April -- its Balboa Café (3119 Fillmore at Greenwich) remains open, and the company is focused on reconcepting and remodeling PlumpJack Café (3127 Fillmore at Filbert) by the end of the year or early next (see previous blog entry). The shuttering of Jeanty at Jack's on Friday, May 22