New chillwave pop lane (vertical 9:16). render.mjs: dynamic wave composition, resonant-noise bed, pfft snare, sub/kick, sinebells + high sung melody, AC zoo samples, ac-native boot/shutdown chime (struct sfx). gen-illy.mjs: per-section illys via gpt-image-2 with jeffrey identity + whistlegraph-butterfly reference, day/age arc, --portrait. preview-score.mjs (+ pop/lib/preview-shared.mjs): rotating-record score-train — verlet string (segmented colour, world-lit), record-groove waveform curvature, vibe image displacement, cinema push transitions, beep ripples, sunset backlight, pals side-stamp watermark, perfect-loop dissolve. Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>