Location and network fetches no longer fire at launch before onboarding
reaches the relevant step: foreground tracking and the first refresh are
gated behind onboarding completion (scenePhase no longer starts tracking
while the cover is up, and onAppear defers its fetch until after
finish). A new Data page sits just before 'You're all set': it probes
the FuelBoard Relay, which surfaces the iOS Local Network permission
prompt in context (NSLocalNetworkUsageDescription added), verifies
connectivity, and offers Open Settings/Check again on denial. Onboarding
is now 5 pages: Welcome, Location, Notifications, Data, Done. 35 tests
pass.
- FuelType labels: 'Unleaded (E10)'/'Premium (E5)' -> 'Unleaded'/'Premium'
- New DistanceUnit (miles/km) preference; all app + widget distances,
radii and alert text convert/display in the chosen unit
- Settings tab (4th tab): segmented miles/km picker, 'Show introduction'
replay button (onboarding moved out of Alerts tab), StoreKit tip £4.99
- ProximityMonitor + widget notifications use the chosen unit
- Tests: label expectations updated, DistanceUnit conversion + format tests