Grilled Clambake Dinner

Name: Grilled Clambake Dinner
Ingredients: 8 tablespoons (1 stick) unsalted butter; 1 tablespoon seafood seasoning, such as Old Bay, plus more for serving; 1 small baguette, cut into 8 slices on a long bias; 2 ears fresh corn, shucked; One 14-ounce kielbasa; 1 pound large tail-on, peeled and deveined shrimp; 12 ounces small red potatoes, sliced 1/8 inch thick; 1 medium red onion, cut into 1/2-inch thick wedges; 12 littleneck clams (about 1 pound), scrubbed and rinsed; Kosher salt and freshly ground black pepper; 3/4 cup dry white wine; Juice of 1 lemon, plus more lemon wedges for serving; 1 clove garlic, grated; 1 tablespoon chopped chives