Settings: price display toggle — station sign (£129.9) vs pounds & pence (£1.299); display-only, all surfaces (list, widgets, Live Activity, Siri cards); Siri dialog stays speech-safe pounds

FuelBoard/SettingsView.swift

@@ -14,6 +14,7 @@ import WidgetKit
 /// relay plumbing.
 struct SettingsView: View {
     @Binding var distanceUnit: DistanceUnit
+    @Binding var priceDisplayStyle: PriceDisplayStyle
     /// The fuel + radius currently configured for alerts (mirrors the Alerts
     /// tab) so the test notification matches what real alerts will say.
     var alertsFuel: FuelType = .e10
@@ -89,10 +90,20 @@ struct SettingsView: View {
                         FuelStore.saveDistanceUnit(newValue)
                         WidgetCenter.shared.reloadAllTimelines()
                     }
+                    Picker("Price display", selection: $priceDisplayStyle) {
+                        ForEach(PriceDisplayStyle.allCases) { style in
+                            Text(style.displayName).tag(style)
+                        }
+                    }
+                    .pickerStyle(.segmented)
+                    .onChange(of: priceDisplayStyle) { _, newValue in
+                        FuelStore.savePriceDisplayStyle(newValue)
+                        WidgetCenter.shared.reloadAllTimelines()
+                    }
                 } header: {
                     Text("Units")
                 } footer: {
-                    Text("Distances and search radii across the app, widget and alerts are shown in this unit.")
+                    Text("Distances and search radii across the app, widget and alerts are shown in this unit. Prices can be shown as on a station sign (£129.9) or in pounds and pence (£1.299).")
                 }
 
                 Section {