feat: Add customer management, payments, and push notifications with security enhancements

Major Feature Additions:
- Customer management: Full CRUD with data export and privacy compliance
- Payment management: Centralized payment tracking and administration
- Push notification subscriptions: Manage and track web push subscriptions

Security Enhancements:
- IP whitelist middleware for administrative endpoints
- Data retention service with configurable policies
- Enhanced push notification security documentation
- Security fixes progress tracking (2025-11-14)

UI/UX Improvements:
- Enhanced navigation with improved mobile responsiveness
- Updated admin dashboard with order status counts
- Improved product CRUD forms
- New customer and payment management interfaces

Backend Improvements:
- Extended customer service with data export capabilities
- Enhanced order service with status count queries
- Improved crypto payment service with better error handling
- Updated validators and configuration

Documentation:
- DEPLOYMENT_NGINX_GUIDE.md: Nginx deployment instructions
- IP_STORAGE_ANALYSIS.md: IP storage security analysis
- PUSH_NOTIFICATION_SECURITY.md: Push notification security guide
- UI_UX_IMPROVEMENT_PLAN.md: Planned UI/UX enhancements
- UI_UX_IMPROVEMENTS_COMPLETED.md: Completed improvements

Cleanup:
- Removed temporary database WAL files
- Removed stale commit message file

🤖 Generated with [Claude Code](https://claude.com/claude-code)

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

LittleShop/Areas/Admin/Controllers/OrdersController.cs

@@ -56,12 +56,13 @@ public class OrdersController : Controller
                 break;
         }
 
-        // Get workflow counts for tab badges
-        ViewData["PendingCount"] = (await _orderService.GetOrdersByStatusAsync(LittleShop.Enums.OrderStatus.PendingPayment)).Count();
-        ViewData["AcceptCount"] = (await _orderService.GetOrdersRequiringActionAsync()).Count();
-        ViewData["PackingCount"] = (await _orderService.GetOrdersForPackingAsync()).Count();
-        ViewData["DispatchedCount"] = (await _orderService.GetOrdersByStatusAsync(LittleShop.Enums.OrderStatus.Dispatched)).Count();
-        ViewData["OnHoldCount"] = (await _orderService.GetOrdersOnHoldAsync()).Count();
+        // Get workflow counts for tab badges (single optimized query)
+        var statusCounts = await _orderService.GetOrderStatusCountsAsync();
+        ViewData["PendingCount"] = statusCounts.PendingPaymentCount;
+        ViewData["AcceptCount"] = statusCounts.RequiringActionCount;
+        ViewData["PackingCount"] = statusCounts.ForPackingCount;
+        ViewData["DispatchedCount"] = statusCounts.DispatchedCount;
+        ViewData["OnHoldCount"] = statusCounts.OnHoldCount;
 
         return View();
     }
@@ -137,15 +138,6 @@ public class OrdersController : Controller
     {
         if (!ModelState.IsValid)
         {
-            // Log validation errors for debugging
-            foreach (var error in ModelState)
-            {
-                if (error.Value?.Errors.Count > 0)
-                {
-                    Console.WriteLine($"Validation error for {error.Key}: {string.Join(", ", error.Value.Errors.Select(e => e.ErrorMessage))}");
-                }
-            }
-
             // Return to details page with error
             var order = await _orderService.GetOrderByIdAsync(id);
             if (order == null)