feat: full FrontOffice updates - discount store, blog, payment gateway, UI improvements

- Discount store pages (products, cart, orders, order detail)
- Blog pages and services
- Payment gateway callback page
- AppImage component, EmptyState, LoadingState, PageHeader
- DiscountCartService, DiscountOrderService, DiscountProductService
- BlogCategoryService, BlogPostService, SitePageService, ImageCacheService
- PhoneVerifyForm component
- Profile Hub page
- UI/UX improvements across all pages
- landing.js for homepage
- Config and routing updates

src/FrontOffice.Main/Utilities/RouteConstants.cs

@@ -15,6 +15,7 @@ public static class RouteConstants
     public static class Profile
     {
         public const string Index = "/profile";
+        public const string Hub = "/profile/hub";
         public const string Personal = "/profile/personal";
         public const string Addresses = "/profile/addresses";
         public const string Settings = "/profile/settings";
@@ -66,6 +67,12 @@ public static class RouteConstants
         public const string Index = "/contact";
     }
 
+    public static class Blog
+    {
+        public const string Index = "/blog";
+        public const string Post = "/blog/"; // usage: /blog/{slug}
+    }
+
     public static class Checkout
     {
         public const string Index = "/checkout";
@@ -82,4 +89,24 @@ public static class RouteConstants
         public const string OrderTracking = "/order-tracking/"; // usage: /order-tracking/{id}
         public const string Categories = "/categories";
     }
+
+    public static class DiscountStore
+    {
+        public const string Products = "/discount-store";
+        public const string ProductDetail = "/discount-store/product/"; // usage: /discount-store/product/{id}
+        public const string Cart = "/discount-store/cart";
+        public const string Checkout = "/discount-store/checkout";
+        public const string Orders = "/discount-store/orders";
+        public const string OrderDetail = "/discount-store/order/"; // usage: /discount-store/order/{id}
+    }
+
+    /// <summary>
+    /// Gateway/chooser pages — when a concept exists in both stores
+    /// </summary>
+    public static class Gateway
+    {
+        public const string StoreChooser = "/stores";
+        public const string OrdersChooser = "/my-orders";
+        public const string CartChooser = "/my-cart";
+    }
 }