Performance Notes - Take your time to do this thoroughly - Quality is more important than speed - Do not skip validation steps Add Feature Add a new feature to your game. Just describe what you want in plain English — for example, "add a double-jump power-up" or "add a high score leaderboard" — and the feature will be built following your game's existing patterns. Instructions The user wants to add: $ARGUMENTS Step 1: Understand the codebase - Read to identify the engine (Three.js or Phaser) - Read for existing configuration - Read for existing events - Read for existing state - Read (or Game…