creation one order time

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

@@ -10,6 +10,8 @@ class OneTimeOrder extends Equatable {
     required this.date,
     required this.location,
     required this.positions,
+    this.vendorId,
+    this.roleRates = const <String, double>{},
   });
   /// The specific date for the shift or event.
   final DateTime date;
@@ -20,6 +22,18 @@ class OneTimeOrder extends Equatable {
   /// The list of positions and headcounts required for this order.
   final List<OneTimeOrderPosition> positions;
 
+  /// Selected vendor id for this order.
+  final String? vendorId;
+
+  /// Role hourly rates keyed by role id.
+  final Map<String, double> roleRates;
+
   @override
-  List<Object?> get props => <Object?>[date, location, positions];
+  List<Object?> get props => <Object?>[
+    date,
+    location,
+    positions,
+    vendorId,
+    roleRates,
+  ];
 }