Wheat Berry Bowl with Merguez and Pomegranate

Name: Wheat Berry Bowl with Merguez and Pomegranate
Ingredients: 2 cups wheat berries; Kosher salt; 4 tablespoons extra-virgin olive oil, divided; 1 pound merguez sausage, casings removed; 1 garlic clove, finely grated; 1/2 cup plain whole-milk Greek yogurt; 2 tablespoons fresh lemon juice, divided; 2 teaspoons za’atar, plus more for serving; Freshly ground black pepper; 1/2 cup pomegranate seeds; 1/4 cup coarsely chopped mint, plus leaves for serving; 4 scallions, thinly sliced, divided; 3 Persian cucumbers, thinly sliced into rounds