- Buildings slowly grow and shrink using sine wave animation
- Speed: 0.001 (slow breathing), Range: ±30% height variation
- Uses requestAnimationFrame for smooth 60fps animation
- toggleBuildingAnimation() function to enable/disable
- Enabled by default
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>