Add @bytelyst/charts + @bytelyst/data-viz as workspace:* deps (minimal
importer link entries in the lockfile). Replace the badge-pill breakdowns
on /dashboard with KpiCards (total/open/in-progress/done) and a dynamically
imported chart surface: Donut for By Status + By Type (centered total) and
a BarChart for By Priority, coloured from the bridged --bl-chart-* palette.
Pure transforms live in src/lib/overview-charts.ts (finite-coerced, no NaN
reaches the SVG); the heavy chart surface is split into overview-charts.tsx
and loaded via next/dynamic (ssr:false) to keep it out of the route bundle.
Add overview-charts.test.tsx rendering the surface with mocked stats via
react-dom/server (no NaN in paths) + transform unit tests; dedupe react in
vitest so the SSR render uses a single React instance.
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