Chicken Pho with Radish and Zucchini Noodles

Name: Chicken Pho with Radish and Zucchini Noodles
Ingredients: 2 Tbs. vegetable oil; 1 yellow onion, thinly sliced; 2 garlic cloves, minced; 2-inch (5-cm) piece fresh ginger, peeled and minced; 2 jalapeño chiles, thinly sliced; 1 star anise pod; 1 tsp. ground cinnamon; 8 cups (64 fl. oz./2 l) chicken broth; 2 bone-in, skin-on chicken breasts (about 1 1/2 lb./750 g); 2 zucchini; 1 daikon radish, peeled; 2 watermelon radishes, peeled; 1 Tbs. soy sauce; Fresh mint leaves for serving; Lime wedges for serving