Refactor payment verification to manual workflow and add comprehensive cleanup tools

Major changes:
• Remove BTCPay Server integration in favor of SilverPAY manual verification
• Add test data cleanup mechanisms (API endpoints and shell scripts)
• Fix compilation errors in TestController (IdentityReference vs CustomerIdentity)
• Add deployment automation scripts for Hostinger VPS
• Enhance integration testing with comprehensive E2E validation
• Add Blazor components and mobile-responsive CSS for admin interface
• Create production environment configuration scripts

Key Features Added:
• Manual payment verification through Admin panel Order Details
• Bulk test data cleanup with proper cascade handling
• Deployment automation with systemd service configuration
• Comprehensive E2E testing suite with SilverPAY integration validation
• Mobile-first admin interface improvements

Security & Production:
• Environment variable configuration for production secrets
• Proper JWT and VAPID key management
• SilverPAY API integration with live credentials
• Database cleanup and maintenance tools

🤖 Generated with Claude Code

Co-Authored-By: Claude <noreply@anthropic.com>

LittleShop/Program.cs

@@ -20,6 +20,8 @@ builder.Host.UseSerilog();
 // Add services to the container.
 builder.Services.AddControllers();
 builder.Services.AddControllersWithViews(); // Add MVC for Admin Panel
+builder.Services.AddRazorPages(); // Add Razor Pages for Blazor
+builder.Services.AddServerSideBlazor(); // Add Blazor Server
 
 // Configure Antiforgery
 builder.Services.AddAntiforgery(options =>
@@ -268,6 +270,9 @@ app.MapControllerRoute(
     pattern: "{controller=Home}/{action=Index}/{id?}");
 
 app.MapControllers(); // API routes
+app.MapBlazorHub(); // Map Blazor Server hub
+app.MapRazorPages(); // Enable Razor Pages for Blazor
+app.MapFallbackToPage("/blazor/{*path}", "/_Host"); // Fallback for all Blazor routes
 
 // Map SignalR hub
 app.MapHub<LittleShop.Hubs.ActivityHub>("/activityHub");