- Fix grid visibility: show gray background cells always, animate mood
colors on top with scale 2x->1x effect
- Add smooth auto-scroll for MonthView: starts after first month is 50%
filled, scrolls at constant speed to match fill rate
- Remove pause between months for fluid continuous animation
- Add currentAnimatingMonthIndex tracking to DemoAnimationManager
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
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