- Introduce dynamic 3D geometry objects (torusKnot, trefoil, hyperboloid, etc.) rendered with Three.js on both sides of the screen when lightbox or now-playing overlay is open; only active on viewports ≥1280px wide.
- Add CSS styling for `.oo-canvas` (z-index 3100) and `.card.playlist-active` to highlight the currently active playlist card with neon-cyan glow effects.
- Extend player.js to track `briTunesActivePlaylistId` and toggle `playlist-active` class on cards via data attributes.
- Add `data-playlist-id` attributes to playlist cards in home, playlists, profile views and play buttons in playlist view for highlighting support.
