- enters plate and sees vehicle info with CTA button:
types HDO732, verifies Peugeot 107 1.0, 2011, Gul, Bensin appear,
verifies Fortsatt till brevet link has correct href
- shows not found for unknown plate (ZZZ999)
- CTA navigates to compose when authenticated:
logs in as test@bilhalsning.se, performs lookup, clicks CTA,
verifies redirect to /compose?plate=HDO732
