feat(dashboard): modern color palette for citations chart#334
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Replace the rainbow HSL fallback with a curated Tableau-derived qualitative palette (10 saturated hues + 10 companion tones). Overflow beyond 20 series walks the HSL wheel by the golden angle so colors stay distinct and balanced instead of clustering.
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Summary
Modernizes the colors of the Publication Citations chart. Swaps the rainbow
hsl(hue, 62%, 48%)fallback for a curated Tableau-derived qualitative palette (10 saturated hues + 10 companion tones, 20 total), so the stacked series read as a clean, professional set. Communities tracking more than 20 papers fall back to golden-angle HSL spacing, which keeps overflow colors distinct rather than clustered.Dashboard-only change (vanilla JS + Chart.js); no API change.
Test plan