add money return / credit note receipt type with HTML test

EpsonTest/TestHelpers.cs

@@ -5,6 +5,7 @@ using Inspectron.Epson.PrintServer.Printers.Utils.BarReceipt;
 using Inspectron.Epson.PrintServer.Printers.Utils.FinalRecipe;
 using Inspectron.Epson.PrintServer.Printers.Utils.InvoiceReceipt;
 using Inspectron.Epson.PrintServer.Printers.Utils.KitchenReceipt;
+using Inspectron.Epson.PrintServer.Printers.Utils.MoneyReturnReceipt;
 using Inspectron.Epson.PrintServer.Printers.Utils.OrderItems;
 
 namespace EpsonTest;
@@ -462,6 +463,66 @@ public static class TestHelpers
         };
     }
 
+    // Mirrors money_return_receipt_data.json plus the credit-note specific fields
+    // shown in money_return_receipt.jpg (original invoice reference, refund type, tip).
+    public static MoneyReturnReceipt BuildSampleMoneyReturnReceipt()
+    {
+        var receipt = new MoneyReturnReceipt
+        {
+            CompanyName = "Big Mac Bistro",
+            Address1 = "Zelena 186",
+            Address2 = "79000 Lviv",
+            Phone = "080 039 47 69",
+            ReceiptNumber = "25",
+            DateTime = new DateTime(2026, 7, 4, 11, 8, 13),
+            Guests = 1,
+            Total = 20.00m,
+            Currency = "CHF",
+            PaymentMethod = "Cash",
+            PaymentAmount = 13.00m,
+            WaiterName = "Ronald McDonald",
+            VatNumber = " MWST",
+            ThankYouMessage = "Thank you for your order!",
+            GoodbyeMessageLine1 = "Auf Wiedersehen.",
+            GoodbyeMessageLine2 = "Powered by James",
+            // Credit-note specific fields
+            OriginalInvoiceNumber = "773",
+            OriginalDateTime = new DateTime(2026, 7, 4, 11, 7, 0),
+            RefundType = "Full refund",
+            Tip = 7.00m
+        };
+
+        receipt.Items.Add(new MoneyReturnReceiptItem
+        {
+            Quantity = 1,
+            Description = "Cloudy Bay Sauvignon Blanc 2024",
+            UnitPrice = 13.00m,
+            TotalPrice = 13.00m,
+            TaxCategory = "D"
+        });
+
+        receipt.Items.Add(new MoneyReturnReceiptItem
+        {
+            Quantity = 1,
+            Description = "Trinkgeld",
+            UnitPrice = 7.00m,
+            TotalPrice = 7.00m,
+            TaxCategory = "D"
+        });
+
+        receipt.TaxBreakdown.Add(new MoneyReturnTaxInfo
+        {
+            Category = "D",
+            Rate = 0m,
+            Gross = 20.00m,
+            Net = 20.00m,
+            TaxAmount = 0.00m,
+            Currency = "CHF"
+        });
+
+        return receipt;
+    }
+
     #endregion
 
     #region Print Helpers