Player.tsx:
- Track name now scrolls horizontally when hovered (marquee effect)
- Uses CSS @keyframes animation with duplicated text for seamless loop
- Animation duration scales with text length (min 6s, ~0.3s per char)
- Default state: truncate with ellipsis. Hover: whitespace-nowrap + animate
- Wrapped player in React fragment with inline <style> for keyframes
- Uses Tailwind group-hover to trigger animation only on hover
