Fix multiple TeleBot and admin panel issues

- Fix admin panel to show all pending orders (PendingPayment + PaymentReceived)
- Fix currency display from USD ($) to GBP (£) throughout TeleBot
- Update payment methods to use dynamic SilverPay currency list
- Consolidate shipping address collection into single message
- Implement cart backup/restore on payment failure
- Remove unsupported XMR from TeleBot config

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

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

LittleShop/Services/OrderService.cs

@@ -511,7 +511,18 @@ public class OrderService : IOrderService
 
     public async Task<IEnumerable<OrderDto>> GetOrdersRequiringActionAsync()
     {
-        return await GetOrdersByStatusAsync(OrderStatus.PaymentReceived);
+        var orders = await _context.Orders
+            .Include(o => o.Customer)
+            .Include(o => o.Items)
+            .ThenInclude(oi => oi.Product)
+            .Include(o => o.Items)
+            .ThenInclude(oi => oi.ProductMultiBuy)
+            .Include(o => o.Payments)
+            .Where(o => o.Status == OrderStatus.PendingPayment || o.Status == OrderStatus.PaymentReceived)
+            .OrderByDescending(o => o.CreatedAt)
+            .ToListAsync();
+
+        return orders.Select(MapToDto);
     }
 
     public async Task<IEnumerable<OrderDto>> GetOrdersForPackingAsync()