Prompt: Create a single-file HTML/CSS/JS Canvas (800×800) mini game inspired by Angry Birds. The scene is a 2D side view with a simple slingshot on the left, a stack of blocks with enemy characters (e.g., pigs) on the right, and a blue sky with clouds in the background. Requirements: 1. Canvas and layout • Fixed canvas size: 800×800, centered in the page with a dark border. • Ground as a flat green strip at the bottom. • On the left: a wooden slingshot anchored to the ground. • On the right: a s