Add scatter, range, and horizontal bar charts

[oshtz]

Summary

Adds the missing Cartesian geometries needed for numeric comparisons while preserving existing chart APIs. This revision is rebased onto the current registry/CLI architecture.

• Add ScatterChart and Scatter with numeric axes, dithered points, labels, X/Y tooltip values, nearest-point hover across every series, and selection.
• Add RangeChart and Range for horizontal low/value/high intervals with dithered value markers and auto-domains derived only from registered range fields.
• Add opt-in layout="horizontal" support to BarChart.
• Preserve vertical bars as the default, including existing grouped and stacked behavior.
• Generalize Cartesian scaling, axes, grid rendering, hit testing, and reusable dither painting for the new geometries.
• Add exports, current-format registry entries/generated JSON, docs, mount regressions, and focused geometry tests.
• Normalize generated registry source line endings so builds are deterministic across platforms.

Example

<ScatterChart
  data={data}
  config={config}
  xKey="cost"
  xDomain={[0, maxCost]}
  yDomain={[0, 1]}
>
  <XAxis />
  <YAxis />
  <Tooltip labelKey="model" />
  <Scatter dataKey="score" labelKey="model" radius={5} />
</ScatterChart>

<RangeChart
  data={data}
  config={config}
  categoryKey="model"
  domain={[0, 1]}
>
  <XAxis />
  <YAxis dataKey="model" />
  <Tooltip labelKey="model" />
  <Range dataKey="mean" lowKey="low" highKey="high" />
</RangeChart>

Horizontal bars use layout="horizontal", category labels on YAxis, and numeric values on XAxis.

Compatibility

Existing BarChart callers remain vertical by default. Existing grouped and stacked behavior is unchanged. No application-specific UI or SVG export changes are included.

Validation

• npm test ? 35 Vitest component/geometry tests and 27 CLI tests passed
• npm run build ? generated 11 registry items with 51 file references; CLI build passed
• npx tsc --noEmit ? passed
• Temporary Vite consumer previously verified at desktop/narrow widths in light and dark themes

Summary by Comp AI

No blocking issues found.

_{Written for commit 9d11218. New commits will trigger a re-review. Generated by Comp AI.}

[tripwire-dev]

passed — nothing tripped. good to merge.

[ripgrim]

@oshtz Could you give some screenshots of your change?

[oshtz]

@ripgrim sure (:

screenshot dark mode w/ tooltips for vis.

[comp-ai-code-review]

✅ Comp AI code review complete — no issues found.

_{Reviewed commit 9d11218.}

_{Posted by Comp AI Code Reviews.}

[comp-ai-code-review]

No blocking issues found across the changed files.

_{Posted by Comp AI Code Reviews.}