Widget: per-widget distance, sanitised names, £ prices

- New Distance picker in Edit Widget (5/10/15 miles), independent of the
  app's distance filter; used for both the relay fetch radius and the
  strict in-widget filter.
- Brand text is now title-cased via sanitizedStationTitle (relay sends
  all-caps brands like SHELL/TESCO/MORRISONS).
- Prices now show as £1.399 (monospaced) matching the app, instead of
  139.9p.
- Directions deep-link (mapsDirectionsURL) already per-row on medium and
  whole-widget on small; unchanged. 35 tests pass.

FuelBoardWidgets/FuelPriceWidget.swift

@@ -77,9 +77,10 @@ struct FuelPriceTimelineProvider: AppIntentTimelineProvider {
     }
 
     private func makeEntry(configuration: FuelBoardWidgetConfigurationIntent) async -> FuelPriceEntry {
-        // Per-widget config: fuel + sort come from THIS widget instance.
+        // Per-widget config: fuel + sort + distance come from THIS widget instance.
         let fuel = FuelType(rawValue: configuration.fuel.rawValue) ?? .e10
         let sort: SortMode = configuration.sort == .closest ? .closest : .cheapest
+        let radiusKM = Double(configuration.distance.miles) * 1.60934
 
         // 1) Try a fresh location fix (bounded to a few seconds).
         var location = await WidgetLocationFetcher.shared.currentLocation().map {
@@ -108,7 +109,6 @@ struct FuelPriceTimelineProvider: AppIntentTimelineProvider {
         // shared cache, then to samples.
         var stations: [FuelStation] = []
         if let location {
-            let radiusKM = unitToKM()
             if let fetched = await Self.fetchFocused(near: location, fuel: fuel, radiusKM: radiusKM) {
                 stations = fetched
             }
@@ -116,7 +116,6 @@ struct FuelPriceTimelineProvider: AppIntentTimelineProvider {
         if stations.isEmpty { stations = FuelStore.loadStations() }
         if stations.isEmpty { stations = SampleFuelProvider.sampleStations }
         let unit = FuelStore.loadDistanceUnit()
-        let radiusKM = unitToKM()
         if let location {
             // STRICT: cached data fetched around another location must never
             // leak out-of-radius stations into the widget.
@@ -159,11 +158,6 @@ struct FuelPriceTimelineProvider: AppIntentTimelineProvider {
         )
     }
 
-    /// The search radius in km for the widget's own focused relay fetch.
-    private func unitToKM() -> Double {
-        FuelStore.loadDistanceUnit().toKM(Double(FuelStore.loadStationLimit()))
-    }
-
     /// One focused fetch from the relay around the widget's location — small
     /// response (radius + limit 500), bounded so a dead relay can't stall the
     /// timeline. Returns nil on any failure so callers fall back to cache.
@@ -230,12 +224,12 @@ struct FuelPriceWidgetView: View {
                     .font(.caption2)
                     .foregroundStyle(.secondary)
             }
-            Text(station.brand)
+            Text(station.brand.sanitizedStationTitle)
                 .font(.headline)
                 .lineLimit(1)
             if let price = station.prices[entry.fuel] {
-                Text(String(format: "%.1fp", price))
-                    .font(.system(size: 28, weight: .bold))
+                Text(String(format: "£%.3f", price / 100))
+                    .font(.system(size: 26, weight: .bold).monospaced())
                     .foregroundStyle(.green)
             }
             if let location = entry.location {
@@ -269,7 +263,7 @@ struct FuelPriceWidgetView: View {
             ForEach(entry.stations.prefix(3)) { station in
                 Link(destination: station.mapsDirectionsURL ?? URL(string: "http://maps.apple.com")!) {
                     HStack(spacing: 8) {
-                        Text(station.brand)
+                        Text(station.brand.sanitizedStationTitle)
                             .font(.caption.weight(.semibold))
                             .lineLimit(1)
                         if let location = entry.location {
@@ -283,8 +277,8 @@ struct FuelPriceWidgetView: View {
                                 Circle()
                                     .fill(ragColor(for: price, cheapest: cheapest))
                                     .frame(width: 6, height: 6)
-                                Text(String(format: "%.1fp", price))
-                                    .font(.caption.weight(.bold))
+                                Text(String(format: "£%.3f", price / 100))
+                                    .font(.caption.weight(.bold).monospaced())
                                     .foregroundStyle(.primary)
                             }
                         }