47e1e64b8c
- Added Train and TrainController classes in train.js - Created TrainRenderer for Three.js visualization - Integrated train controls into game.js - Updated index.html with train UI controls - Added train control styles to css/styles.css - Created test file for train module - Train can accelerate, brake, reverse and stop - Keyboard controls: W/↑ accelerate, S/↓ brake, R/D reverse, SPACE stop