- Single system splash (core-splashscreen) kept on screen until the first
events load (StartupState), then reveals the ready app — removes the
two-stage 'icon then title' splash and the laggy half-loaded entry
- Month scrolling: dropped per-row BoxWithConstraints (measured grid width once
via onSizeChanged) and resolve bar colours once during packing instead of
every recomposition → much smoother scroll
- Serialize all event loads behind a Mutex and skip redundant state writes so
scroll-triggered month loads no longer pile up / thrash the UI
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
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