saving name of the orders

apps/mobile/packages/domain/lib/src/entities/orders/one_time_order.dart

@@ -11,6 +11,7 @@ class OneTimeOrder extends Equatable {
     required this.location,
     required this.positions,
     this.hub,
+    this.eventName,
     this.vendorId,
     this.roleRates = const <String, double>{},
   });
@@ -26,6 +27,9 @@ class OneTimeOrder extends Equatable {
   /// Selected hub details for this order.
   final OneTimeOrderHubDetails? hub;
 
+  /// Optional order name.
+  final String? eventName;
+
   /// Selected vendor id for this order.
   final String? vendorId;
 
@@ -38,6 +42,7 @@ class OneTimeOrder extends Equatable {
     location,
     positions,
     hub,
+    eventName,
     vendorId,
     roleRates,
   ];