- 네이티브 element props 상속 + className 병합(무의존 cn 헬퍼) - Button: variant(primary/secondary/outline/ghost/destructive)/size, hover 톤다운(brand-700) - React 19 기준 forwardRef 없이 ref 전달 Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
