Enhancement: Show proper order details instead of GUIDs

- OrderListMenu now shows item summary (e.g., '2x Product Name' or 'Product Name +2 more')
- FormatCart enhanced to show variant selections and multi-buy indicators
- FormatOrder enhanced to show variant names and detailed item breakdown
- Cart now clearly distinguishes between multi-buy bundles and regular items
- Order confirmations now show full product and variant details

Replaced generic GUID displays with human-readable product information for better UX.

TeleBot/TeleBot/UI/MenuBuilder.cs

@@ -333,9 +333,29 @@ namespace TeleBot.UI
             foreach (var order in orders.Take(10)) // Limit to 10 most recent
             {
                 var status = GetOrderStatusEmoji(order.Status);
+
+                // Build a summary of items in the order
+                var itemSummary = "";
+                if (order.Items.Any())
+                {
+                    var firstItem = order.Items.First();
+                    if (order.Items.Count == 1)
+                    {
+                        itemSummary = $"{firstItem.Quantity}x {firstItem.ProductName}";
+                    }
+                    else
+                    {
+                        itemSummary = $"{firstItem.ProductName} +{order.Items.Count - 1} more";
+                    }
+                }
+                else
+                {
+                    itemSummary = "Empty order";
+                }
+
                 buttons.Add(new[] {
                     InlineKeyboardButton.WithCallbackData(
-                        $"{status} Order {order.Id.ToString().Substring(0, 8)} - £{order.TotalAmount:F2}",
+                        $"{status} {itemSummary} - £{order.TotalAmount:F2}",
                         $"order:{order.Id}"
                     )
                 });

TeleBot/TeleBot/UI/MessageFormatter.cs

@@ -202,9 +202,31 @@ namespace TeleBot.UI
 
             foreach (var item in cart.Items)
             {
-                sb.AppendLine($"• *{item.ProductName}*");
+                // Build item display with variants/multi-buy info
+                var itemDisplay = item.ProductName;
+
+                // Show variant if selected
+                if (item.SelectedVariants?.Any() == true)
+                {
+                    itemDisplay += $" ({string.Join(", ", item.SelectedVariants)})";
+                }
+                else if (!string.IsNullOrEmpty(item.SelectedVariant))
+                {
+                    itemDisplay += $" ({item.SelectedVariant})";
+                }
+
+                // Show if it's a multi-buy
+                if (item.MultiBuyId.HasValue)
+                {
+                    sb.AppendLine($"• *{itemDisplay}* _(Multi-buy Bundle)_");
+                    sb.AppendLine($"  Bundle Price: *£{item.UnitPrice:F2}*");
+                }
+                else
+                {
+                    sb.AppendLine($"• *{itemDisplay}*");
                     sb.AppendLine($"  Qty: {item.Quantity} × £{item.UnitPrice:F2} = *£{item.TotalPrice:F2}*");
                 }
+            }
 
             sb.AppendLine($"\n📊 *Summary:*");
             sb.AppendLine($"Items: {cart.GetTotalItems()}");
@@ -276,7 +298,16 @@ namespace TeleBot.UI
                 sb.AppendLine("\n*Items:*");
                 foreach (var item in order.Items)
                 {
-                    sb.AppendLine($"• {item.ProductName} - Qty: {item.Quantity} - £{item.TotalPrice:F2}");
+                    var itemDisplay = item.ProductName ?? "Unknown Product";
+
+                    // Add variant info if available
+                    if (!string.IsNullOrEmpty(item.ProductVariantName))
+                    {
+                        itemDisplay += $" ({item.ProductVariantName})";
+                    }
+
+                    sb.AppendLine($"• {itemDisplay}");
+                    sb.AppendLine($"  Qty: {item.Quantity} × £{item.UnitPrice:F2} = £{item.TotalPrice:F2}");
                 }
             }