Spicy Ahi Tuna Nachos

Name: Spicy Ahi Tuna Nachos
Ingredients: 1 1/2 tbsp. reduced-sodium soy sauce; 2 tsp. toasted sesame oil; 1 teaspoon mirin; 1 lb. sushi-grade ahi tuna, cut into small cubes; Vegetable oil, for frying; 18 to 20 wonton wrappers; Kosher salt; 3/4 c. very thinly shredded cabbage; 3 scallions, cut into thin matchsticks; 1/3 c. mayonnaise (preferably Kewpie); 1 1/2 tbsp. sriracha; 1 avocado, finely chopped; 1 to 2 jalapeños, thinly sliced; White and/or black sesame seeds and lime wedges, for serving