Phase 2 of turning the game into the company landing page.
- Delete the Apache motorcycle model, its BIKE handling spec, the
motorcycle row in the factory yard, rider and lean animation, and its
prompt and dialogue strings.
- The garage now holds cars only; the oriented-box collision, traffic
lane checks and other vehicles are unchanged.
- Rework the vehicle tests to cover gaps with a car instead of a bike,
and add a check that no motorcycle code or text remains.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>