Added shared projects

LiteCharms.Models/OrderRefund.cs

@@ -0,0 +1,14 @@
+namespace LiteCharms.Models;
+
+public class OrderRefund
+{
+    public Guid Id { get; set; }
+
+    public DateTimeOffset CreatedAt { get; set; }
+
+    public Guid OrderId { get; set; }
+
+    public string? Reason { get; set; }
+
+    public decimal Amount { get; set; }
+}