CI/CD: Add GitLab CI/CD pipeline for Hostinger deployment

- Updated .gitlab-ci.yml with complete build, test, and deploy stages
- Added authentication redirect fix in Program.cs (302 redirect for admin routes)
- Fixed Cookie vs Bearer authentication conflict for admin panel
- Configure pipeline to build from .NET 9.0 source
- Deploy to Hostinger VPS with proper environment variables
- Include rollback capability for production deployments

🤖 Generated with Claude Code

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

LittleShop.Client/Extensions/ServiceCollectionExtensions.cs

@@ -1,3 +1,4 @@
+using System.Net;
 using LittleShop.Client.Configuration;
 using LittleShop.Client.Http;
 using LittleShop.Client.Services;
@@ -11,7 +12,9 @@ public static class ServiceCollectionExtensions
 {
     public static IServiceCollection AddLittleShopClient(
         this IServiceCollection services,
-        Action<LittleShopClientOptions>? configureOptions = null)
+        Action<LittleShopClientOptions>? configureOptions = null,
+        bool useTorProxy = false,
+        int torSocksPort = 9050)
     {
         // Configure options
         if (configureOptions != null)
@@ -26,7 +29,37 @@ public static class ServiceCollectionExtensions
         // Register HTTP handlers
         services.AddTransient<RetryPolicyHandler>();
         services.AddTransient<ErrorHandlingMiddleware>();
-        
+
+        // Helper function to configure SOCKS5 proxy if TOR is enabled
+        Func<IServiceProvider, HttpMessageHandler> createHandler = (serviceProvider) =>
+        {
+            if (useTorProxy)
+            {
+                var loggerFactory = serviceProvider.GetRequiredService<ILoggerFactory>();
+                var logger = loggerFactory.CreateLogger("LittleShop.Client.TorProxy");
+                var proxyUri = $"socks5://127.0.0.1:{torSocksPort}";
+
+                logger.LogInformation("LittleShop.Client: Configuring SOCKS5 proxy at {ProxyUri}", proxyUri);
+
+                return new SocketsHttpHandler
+                {
+                    Proxy = new WebProxy(proxyUri)
+                    {
+                        BypassProxyOnLocal = false,
+                        UseDefaultCredentials = false
+                    },
+                    UseProxy = true,
+                    AllowAutoRedirect = false,
+                    PooledConnectionLifetime = TimeSpan.FromMinutes(5),
+                    PooledConnectionIdleTimeout = TimeSpan.FromMinutes(2)
+                };
+            }
+            else
+            {
+                return new SocketsHttpHandler();
+            }
+        };
+
         // Register main HTTP client
         services.AddHttpClient<IAuthenticationService, AuthenticationService>((serviceProvider, client) =>
         {
@@ -35,6 +68,7 @@ public static class ServiceCollectionExtensions
             client.Timeout = TimeSpan.FromSeconds(options.TimeoutSeconds);
             client.DefaultRequestHeaders.Add("Accept", "application/json");
         })
+        .ConfigurePrimaryHttpMessageHandler(createHandler)
         .AddHttpMessageHandler<ErrorHandlingMiddleware>()
         .AddHttpMessageHandler(serviceProvider =>
         {
@@ -50,6 +84,7 @@ public static class ServiceCollectionExtensions
             client.Timeout = TimeSpan.FromSeconds(options.TimeoutSeconds);
             client.DefaultRequestHeaders.Add("Accept", "application/json");
         })
+        .ConfigurePrimaryHttpMessageHandler(createHandler)
         .AddHttpMessageHandler<ErrorHandlingMiddleware>()
         .AddHttpMessageHandler(serviceProvider =>
         {
@@ -65,6 +100,7 @@ public static class ServiceCollectionExtensions
             client.Timeout = TimeSpan.FromSeconds(options.TimeoutSeconds);
             client.DefaultRequestHeaders.Add("Accept", "application/json");
         })
+        .ConfigurePrimaryHttpMessageHandler(createHandler)
         .AddHttpMessageHandler<ErrorHandlingMiddleware>()
         .AddHttpMessageHandler(serviceProvider =>
         {
@@ -72,7 +108,7 @@ public static class ServiceCollectionExtensions
             var options = serviceProvider.GetRequiredService<IOptions<LittleShopClientOptions>>().Value;
             return new RetryPolicyHandler(logger, options.MaxRetryAttempts);
         });
-        
+
         services.AddHttpClient<ICustomerService, CustomerService>((serviceProvider, client) =>
         {
             var options = serviceProvider.GetRequiredService<IOptions<LittleShopClientOptions>>().Value;
@@ -80,6 +116,7 @@ public static class ServiceCollectionExtensions
             client.Timeout = TimeSpan.FromSeconds(options.TimeoutSeconds);
             client.DefaultRequestHeaders.Add("Accept", "application/json");
         })
+        .ConfigurePrimaryHttpMessageHandler(createHandler)
         .AddHttpMessageHandler<ErrorHandlingMiddleware>()
         .AddHttpMessageHandler(serviceProvider =>
         {
@@ -95,6 +132,7 @@ public static class ServiceCollectionExtensions
             client.Timeout = TimeSpan.FromSeconds(options.TimeoutSeconds);
             client.DefaultRequestHeaders.Add("Accept", "application/json");
         })
+        .ConfigurePrimaryHttpMessageHandler(createHandler)
         .AddHttpMessageHandler<ErrorHandlingMiddleware>()
         .AddHttpMessageHandler(serviceProvider =>
         {