[codex] Fix chart edge case rendering

[iexitdev]

Summary

This PR fixes a set of small chart correctness issues from the open issue backlog:

• remove the direct lodash dependency by replacing the remaining range usage in ContributionGraph
• guard shared chart scaling/label calculations against empty, invalid, and non-finite data
• avoid LineChart crashes when datasets are empty or missing while vertical lines/scrollable dots are enabled
• prevent LineChart null placeholders in one dataset from inheriting the previous dataset's last rendered point
• normalize strokeDashArray arrays to SVG-compatible strings before rendering line strokes
• add a web onClick handler beside the existing SVG press handler for LineChart dots
• avoid NaN stacked-bar geometry when all stacked values are zero

Fixes #741
Fixes #707
Fixes #744
Fixes #472
Fixes #327
Fixes #743
Fixes #704
Fixes #576
Fixes #609
Fixes #747

Validation

• npm run typecheck
• npm run build
• npm test -- --watch=false --passWithNoTests

Jest has no test files in this repository, so the final command only verifies the test runner exits cleanly with the no-tests setting.

[daxaxelrod]

hey! nice!