Add Smart data checking mode

FuelBoard/ContentView.swift

@@ -16,6 +16,7 @@ struct ContentView: View {
 
     @State private var stations: [FuelStation] = FuelStore.loadStations()
     @State private var selectedFuel: FuelType = FuelStore.loadSelectedFuel()
+    @State private var dataRefreshMode: DataRefreshMode = FuelStore.loadDataRefreshMode()
     @State private var sortMode: SortMode = FuelStore.loadSortMode()
     @State private var stationLimit: Int = FuelStore.loadStationLimit()
     @State private var distanceUnit: DistanceUnit = FuelStore.loadDistanceUnit()
@@ -365,6 +366,7 @@ struct ContentView: View {
             if !showing, FuelStore.loadHasCompletedOnboarding() {
                 locationManager.startForegroundTracking()
                 installLocationUpdateHook()
+                SmartDataRefreshScheduler.scheduleNextIfNeeded()
                 ensureBackgroundMotionTrackingIfNeeded()
                 monitor.update(stations: stations, favourites: refreshedFavourites,
                                fuel: alertsFuel, radiusKM: effectiveAlertsRadiusKM)
@@ -380,6 +382,7 @@ struct ContentView: View {
                 if !showOnboarding, FuelStore.loadHasCompletedOnboarding() {
                     locationManager.startForegroundTracking()
                 }
+                SmartDataRefreshScheduler.scheduleNextIfNeeded()
                 monitor.update(stations: stations, favourites: refreshedFavourites,
                                fuel: alertsFuel, radiusKM: effectiveAlertsRadiusKM)
                 updateLiveActivity()
@@ -787,6 +790,7 @@ struct ContentView: View {
             tipStore: tipStore,
             distanceUnit: $distanceUnit,
             priceDisplayStyle: $priceDisplayStyle,
+            dataRefreshMode: $dataRefreshMode,
             alertsFuel: alertsFuel,
             alertsRadiusKM: alertsRadius,
             testAlertResult: monitor.lastTestResult,
@@ -849,6 +853,7 @@ struct ContentView: View {
             stations = fetched
             FuelStore.saveStations(fetched)
             FuelStore.saveLastRefresh()
+            FuelStore.saveLastSmartProbe()
             // Persist envelope metadata (source, station count, GOV.UK
             // dataset update time) for the Settings → About section — the
             // live chain records whichever leg served the fetch.