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/Pages/Package/MyPackages.razor

@@ -3,16 +3,7 @@
 <PageTitle>پکیج‌های من</PageTitle>
 
 <MudContainer MaxWidth="MaxWidth.Large" Class="py-8">
-    <!-- Breadcrumb -->
-    <MudBreadcrumbs Items="_breadcrumbItems" Class="mb-4" />
-
-    <!-- Header -->
-    <MudStack Class="mb-6">
-        <MudText Typo="Typo.h4">پکیج‌های من</MudText>
-        <MudText Typo="Typo.body1" Class="mud-text-secondary">
-            وضعیت پکیج‌های خریداری شده و عضویت باشگاه مشتریان
-        </MudText>
-    </MudStack>
+    <PageHeader Title="پکیج‌های من" BackHref="@RouteConstants.Profile.Index" />
 
     @if (_isLoading)
     {