Widget config: Distance picker as AppEntity so labels resolve dynamically from the app's units (AppEnum labels are static)

FuelBoardWidgets/WidgetConfigIntent.swift

@@ -35,35 +35,36 @@ enum WidgetSort: String, AppEnum, CaseIterable, Codable {
     ]
 }
 
-enum WidgetDistance: String, AppEnum, CaseIterable, Codable {
-    case five
-    case ten
-    case fifteen
+// Per-widget distance filter. Modelled as an AppEntity (not an AppEnum) so
+// the option labels can mirror the app's units setting at render time: an
+// AppEnum's caseDisplayRepresentations are STATIC, so the Edit-Widget picker
+// would always show "5 miles / 10 miles / 15 miles" regardless of the app's
+// km mode. An entity query resolves labels per value, so they can read the
+// shared unit preference ("8 km" in km mode).
+struct WidgetDistance: AppEntity, Identifiable, Hashable, Codable {
+    /// The distance in miles (5/10/15) — the persisted value. Labels are
+    /// unit-aware, the stored value stays in miles.
+    let id: Int
 
-    static var typeDisplayRepresentation: TypeDisplayRepresentation = "Distance"
+    var miles: Int { id }
 
-    static var caseDisplayRepresentations: [WidgetDistance: DisplayRepresentation] = [
-        .five: "5 miles",
-        .ten: "10 miles",
-        .fifteen: "15 miles",
-    ]
-
-    /// Mirror the app's units setting: the Edit-Widget picker labels show the
-    /// real distance in the user's chosen unit — "5 miles" in miles mode,
-    /// "8 km" in km mode (same stored value, labelled truthfully). Keeps the
-    /// widget config consistent with the Stations/Alerts pickers.
     var displayRepresentation: DisplayRepresentation {
         let unit = FuelStore.loadDistanceUnit()
-        let shown = unit.displayMiles(miles)
+        let shown = unit.displayMiles(id)
         return DisplayRepresentation(stringLiteral: "\(shown) \(unit.label(for: Double(shown)))")
     }
 
-    var miles: Int {
-        switch self {
-        case .five: return 5
-        case .ten: return 10
-        case .fifteen: return 15
+    static var typeDisplayRepresentation: TypeDisplayRepresentation = "Distance"
+    static var defaultQuery = WidgetDistanceQuery()
 }
+
+struct WidgetDistanceQuery: EntityQuery {
+    func entities(for identifiers: [Int]) async throws -> [WidgetDistance] {
+        identifiers.map { WidgetDistance(id: $0) }
+    }
+
+    func suggestedEntities() async throws -> [WidgetDistance] {
+        FuelStore.stationRadiusOptions.map { WidgetDistance(id: $0) }
     }
 }
 
@@ -77,7 +78,7 @@ struct FuelBoardWidgetConfigurationIntent: WidgetConfigurationIntent {
     @Parameter(title: "Sort by", default: .cheapest)
     var sort: WidgetSort
 
-    @Parameter(title: "Distance", default: .five)
+    @Parameter(title: "Distance", default: WidgetDistance(id: 5))
     var distance: WidgetDistance
 
     /// Edit-Widget UI: the Distance picker only makes sense for Cheapest