Grilled Zucchini and Herb Pizza

Name: Grilled Zucchini and Herb Pizza
Ingredients: 1 1/3 cups water; 1 teaspoon granulated sugar; 1 packet (1/4-ounce) active dry yeast; 4 cups all-purpose flour; 2 teaspoons kosher salt; 3 tablespoons olive oil, plus oil for drizzling; 2 tablespoons olive oil, plus more for grill grate; 2 pounds zucchini, trimmed and cut on bias into 1/2-inch slices; 2 teaspoons red wine vinegar; 1 teaspoon red pepper flakes; 1 teaspoon kosher salt; Freshly ground black pepper; 1 tablespoon olive oil; 12 ounces part-skim mozzarella cheese, sliced into 1/4-inch-thick slices; 8 ounces goat cheese, crumbled; 16 large basil leaves, torn; 1 cup sun-dried tomatoes