Spicy Steak Lettuce Wraps

Name: Spicy Steak Lettuce Wraps
Ingredients: 1 lb. boneless beef short ribs; 1 cup short-, medium-, or long-grain white rice (NOT parboiled, converted, or quick-cooking) (optional); 1 red Fresno chile; 1 2 piece ginger; 4 garlic cloves; 3 limes, divided; 1 Tbsp. light brown sugar; 2 tsp. toasted sesame oil; 2 tsp. kosher salt, plus more; 1 head of red leaf lettuce; ¾ cup roasted, salted peanuts; 1 English hothouse cucumber; 1 cup cilantro leaves with tender stems; 2 Tbsp. vegetable oil, divided