Chicken Milanese Sandwich

Name: Chicken Milanese Sandwich
Ingredients: 2 cloves garlic, grated; 4 teaspoons lemon juice plus 1 tablespoon lemon zest; 1/2 teaspoon Dijon mustard; 2 large egg yolks; Kosher salt and freshly cracked black pepper; 1/2 cup neutral oil, such as avocado oil; 1/2 cup extra-virgin olive oil; 1/2 red onion, very thinly sliced; 2 tablespoons lemon juice, plus lemon wedges, for serving; Kosher salt and freshly ground black pepper; 2 cups arugula, tough stems removed; 2 cups chopped radicchio; 1/4 cup fresh basil leaves, sliced thin; 4 boneless, skinless chicken breasts (about 6 ounces each); 2 cups all-purpose flour; 2 large eggs, whisked; 2 cups panko breadcrumbs; 2 tablespoons fresh thyme leaves; 1 teaspoon garlic salt; 1 teaspoon onion powder; 1/2 cup grated Parmesan; 1/2 cup clarified butter or ghee; 2 ciabatta loaves or 4 ciabatta rolls; Extra-virgin olive oil, for drizzling; 1 clove garlic