feat(race-story): polish chapter strip, controls, graph, and map UX (#68)

Consolidate the Race Story section into a cohesive timeline surface: custom
chapter-strip scrolling with active-card sync, unified segmented playback
controls, chapter bands on the position graph with decimated axes and
de-collided labels, map toggle gated by an on-mount replay/outline probe,
and shared empty-state cards. Adds vitest coverage and visual snapshots.

Note: replay/outline queries now probe on mount (not only when Map opens) so
the toggle can be hidden before users hit a dead panel.

Co-authored-by: Cursor <cursoragent@cursor.com>
This commit is contained in:
2026-07-12 13:23:07 -04:00
parent f0a8e4e631
commit 02a84f67b4
20 changed files with 759 additions and 224 deletions

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