This is a ground-up rewrite. Every coordinate calculation now runs on Nx tensors, and charts are built through a new composable, immutable Chart / Axis / Canvas / Dataset API that compiles straight to SVG strings. This release nearly triples the available chart types, adding Area, Step, Bubble, Heatmap, Box Plot, Violin, Radar, Donut, Funnel, Candlestick, and Waterfall alongside the rebuilt Line, Bar, Pie, Spline, Histogram, and Scatter charts.