To make the poke. In a medium bowl, combine the tuna, soy sauce (or tamari), sesame chili oil, ginger, red pepper flakes, green onion, and sesame seeds. Toss to mix.To make the cucumber salad. Toss together the cucumbers, rice vinegar, honey, and a pinch each of chili flakes and salt. To make the Spicy Mayo. In a small bowl, stir together the mayo, sriracha, honey, and soy sauce (or tamari). To assemble, add the rice to bowls, top with avocado, cucumber salad, poke, pickled ginger, green onions, and nori. Spoon over the spicy mayo. Sprinkle on the crumbs. Serve with additional spicy mayo.