Dashboard graphs use theme colours

All dashboard charts now read from your theme tokens — light and dark modes flip cleanly, and a few legacy hard-coded colours have been retired.

## Improvement — Theme-coloured charts

CRM, engagement and accounting projections dashboards now reference the centralised --chart-1..8 design tokens. Charts re-tint on dark-mode switch without a refresh.

Three new chart tokens (chart-6/7/8) were added so the dashboard cards that already referenced them now resolve correctly.

![Side-by-side light and dark mode dashboard with theme-coloured charts](/changelog/2026-04-12-theme-graphs/theme-charts.png)

## Fix — Chart colour fix

Fixed an issue where some analytics charts used hsl(var(--chart-N)) wrappers around values that were already in oklch() — invalid CSS that fell back to default fills. Charts now use the bare token value.