feat: Implement review order flow for one-time, recurring, and permanent orders

- Added ReviewOrderPage to handle order review before submission.
- Created ReviewOrderArguments model to pass data between pages.
- Implemented schedule sections for one-time, recurring, and permanent orders.
- Enhanced navigation flow to confirm order submission after review.
- Refactored order submission logic in OneTimeOrderPage, PermanentOrderPage, and RecurringOrderPage.
- Introduced utility functions for time parsing and scheduling.
- Created reusable widgets for displaying order information in the review section.
- Updated navigation methods to use popSafe for safer back navigation.
- Added MainActivity for Android platform integration.

apps/mobile/packages/core/lib/src/routing/client/navigator.dart

@@ -210,6 +210,13 @@ extension ClientNavigator on IModularNavigator {
     safePush(ClientPaths.createOrderPermanent, arguments: arguments);
   }
 
+  /// Pushes the review order page before submission.
+  ///
+  /// Returns `true` if the user confirmed submission, `null` if they went back.
+  Future<bool?> toCreateOrderReview({Object? arguments}) async {
+    return safePush<bool>(ClientPaths.createOrderReview, arguments: arguments);
+  }
+
   // ==========================================================================
   // VIEW ORDER
   // ==========================================================================

apps/mobile/packages/core/lib/src/routing/client/route_paths.dart

@@ -154,4 +154,9 @@ class ClientPaths {
   ///
   /// Create a long-term or permanent staffing position.
   static const String createOrderPermanent = '/create-order/permanent';
+
+  /// Review order before submission.
+  ///
+  /// Summary page shown before posting any order type.
+  static const String createOrderReview = '/create-order/review';
 }