Element: #198 Calendar heatmap (charts/heatmap) What it shows: A calendar heatmap of daily commit counts from 2026-01-01 to 2026-09-15. When to use: Showing activity over a year, like contributions, logins or deploys per day. Spec: - ` `${v} commits`}` - `height="160px"` inside `` Tags: heatmap-chart, calendar, activity, range, tooltip-formatter, card Needs: @codeatlasdev/ui@4.4.0 + echarts Components: Card, HeatmapChart Live demo: https://ui.codeatlas.com.br/docs/charts/heatmap#calendar-heatmap `${v} commits`} height="160px" />