Additional performance improvements for trackmap

[tariknz]

• Precalculate x/y coordinates for track percentage
• Update track direction list
• Hide broken tracks
• Better resize logic to use observer instead
• Reduce complexity around throttling

[Copilot]

Pull Request Overview

This PR enhances TrackMap performance by precalculating SVG points, refining direction logic, and improving rendering/resizing behavior.

• Pre-calculate SVG path points and total lengths via a new preCalculatePoints utility.
• Refactor findDirection to use a dedicated anticlockwiseTracks array.
• Introduce a broken-tracks registry and conditional rendering to hide unsupported tracks in production.

Reviewed Changes

Copilot reviewed 7 out of 8 changed files in this pull request and generated 4 comments.

Show a summary per file

File	Description
tools/svg-utils.ts	Extract anticlockwiseTracks array in findDirection and add preCalculatePoints.
tools/generate-paths-json.ts	Invoke preCalculatePoints and include totalLength in generated JSON.
src/frontend/components/TrackMap/tracks/broken-tracks.ts	New module listing broken tracks and helper functions.
src/frontend/components/TrackMap/hooks/useDriverProgress.tsx	Filter out pace car using useSessionStore.
src/frontend/components/TrackMap/TrackDebug.tsx	Add debug component for missing or broken track data.
src/frontend/components/TrackMap/TrackCanvas.tsx	Refactor canvas: remove manual throttling, use ResizeObserver, hide broken tracks.
src/frontend/components/TrackMap/TrackCanvas.stories.tsx	Add stories for single-driver view and a broken-tracks grid.

Comments suppressed due to low confidence (2)

tools/svg-utils.ts:111

• The function preCalculatePoints uses svgPathProperties but there is no import { svgPathProperties } at the top of the file; add the import to prevent a ReferenceError.

export const preCalculatePoints = (pathData: string): { x: number; y: number }[] => {

src/frontend/components/TrackMap/TrackCanvas.stories.tsx:429

• The variable sampleData is not defined in this scope, which will cause a runtime error; ensure you import or define a valid drivers array for the story.

                  drivers={sampleData}