The Silvermine Market is kind of like a neighborhood clubhouse. Make that town hall, says Scott Kaluczky, chef and co-owner of the gourmet deli. “Silvermine has a rich history and a strong sense of community,” he says. The quaint area along the Silvermine River strattles the border of New Canaan, Wilton and Norwalk. The Market is an off-the-beaten path place to have a business breakfast, or lunch after a visit to the Silvermine Art Center’s classes and shows. But the Silvermine Market also holds a well-kept secret: on Friday and Saturday evenings, it transforms into a candlelit, table-clothed restaurant serving Italian-American and American fare. It’s called Nighttime at Silvermine.