Shrimp Scampi with Garlic Toasts

Name: Shrimp Scampi with Garlic Toasts
Ingredients: 3 tablespoons extra-virgin olive oil; 3 tablespoons unsalted butter; 5 cloves garlic, chopped; Kosher salt; Pinch of red pepper flakes; Eight 1/2-inch-thick slices crusty bread; 1 1/4 pounds large shrimp, peeled and deveined, tails intact; 3/4 cup dry white wine or low-sodium chicken broth; Grated zest and juice of 1/2 lemon, plus lemon wedges for serving; 1/3 cup chopped fresh parsley; 1/3 cup chopped fresh chives