Added components to article

lib/feature/delivery/bloc/tour_state.dart

@@ -8,49 +8,38 @@ class TourLoading extends TourState {}
 
 class TourLoadingFailed extends TourState {}
 
-class TourRequestingDistances extends TourState {
-  Tour tour;
-  List<Payment> payments;
-
-  TourRequestingDistances({required this.tour, required this.payments});
-}
-
-class TourRequestingSortingInformation extends TourState {
-  Tour tour;
-  Map<String, double>? distances;
-  List<Payment> paymentOptions;
-
-  TourRequestingSortingInformation({
-    required this.tour,
-    this.distances,
-    required this.paymentOptions,
-  });
-}
-
 class TourLoaded extends TourState {
   Tour tour;
   Map<String, double>? distances;
   List<Payment> paymentOptions;
   Map<String, List<String>> sortingInformation;
 
+  /// Number of scan-related server requests currently in flight. Drives the
+  /// inline indicator on the scanner widget. Using a counter (not bool) lets
+  /// rapid-fire scans coexist without one prematurely clearing the indicator.
+  int pendingScanRequests;
+
   TourLoaded({
     required this.tour,
     this.distances,
     required this.paymentOptions,
-    required this.sortingInformation
+    required this.sortingInformation,
+    this.pendingScanRequests = 0,
   });
 
   TourLoaded copyWith({
     Tour? tour,
     Map<String, double>? distances,
     List<Payment>? paymentOptions,
-    Map<String, List<String>>? sortingInformation
+    Map<String, List<String>>? sortingInformation,
+    int? pendingScanRequests,
   }) {
     return TourLoaded(
       tour: tour ?? this.tour,
       distances: distances ?? this.distances,
       paymentOptions: paymentOptions ?? this.paymentOptions,
-      sortingInformation: sortingInformation ?? this.sortingInformation
+      sortingInformation: sortingInformation ?? this.sortingInformation,
+      pendingScanRequests: pendingScanRequests ?? this.pendingScanRequests,
     );
   }
 }