- New 'Send plain test notification' button fires with zero criteria checks
(no geofence, no cheapest check, no permission gate) to isolate delivery
and tap behaviour
- ProximityMonitor is now the UNUserNotificationCenter delegate: banners
show even in the foreground (system suppresses them otherwise), and taps
complete the 'open FuelBoard' action
Fires a local notification shaped exactly like a real price alert (uses the
currently configured alerts fuel + radius), with permission-gated handling:
prompts on first use, guides to Settings when denied. Tapping it opens
FuelBoard, same as a real alert.
- 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