Heatmap is now one component, two modes by data shape: matrix {x,y,value}
(columns × rows) and calendar {date,value} (GitHub-style weeks × weekdays,
with granularity year/month, orientation, locale-aware week start, fade).
New standalone charts: Gauge, Funnel (multicolor + labelPosition), Bubble
(size-encoded, axis-padded), PolarArea (Nightingale, padAngle gap between
sectors), CalendarHeatmap (internal renderer behind Heatmap).
Funnel/Bubble/Heatmap/PolarArea gain hover tooltips + dim. CalendarHeatmap
week start + month/weekday labels follow the uix langs locale reactively.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>