Documents the new race-day Schedule feature (new section + overview
card), staggered-start car call-outs and the per-driver "Done" flag,
the new Settings and Event Manager tab layouts, and the driver
transponder-conflict warning. Also corrects a bullet that had gone
stale: it claimed Open/Free Practice was the only thing that skipped
the start ceremony, which stopped being true once scheduled "Practice"
sessions started getting the full sequence too.
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>