docs(design): one-screen jam dashboard concept + jam view (task D-50)
Slim loop strip (76px trimmed banner, big Now Playing chord removed),
two-column grid: compact instrument view (natural-scale cap 674/562px)
+ licks + related-progressions LEFT, height-bounded voicings rail
RIGHT (500px, internal scroll — honestly NOT sticky: zero travel in
the flex row); jam view = CSS h-screen lock + best-effort
requestFullscreen (Promise-caught), hiding everything below;
related-progressions ranking spec'd with the collapse rule
coordinated with D-62's matcher fix. Critic returned once (strip
height, inert sticky, double-counted padding, raw-vs-collapsed
ranking), fixed, PASS on scoped re-gate (all budgets recomputed).
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
vadimwit
d24bf352e1