Forgot unversioned xd

SVSim.EmulatedEntrypoint/Models/Dtos/Requests/Common/DeckFormatRequest.cs

@@ -0,0 +1,13 @@
+using MessagePack;
+
+namespace SVSim.EmulatedEntrypoint.Models.Dtos.Requests.Common;
+
+/// <summary>
+/// Common request shape for endpoints scoped by deck format (`/deck/info`,
+/// `/practice/deck_list`, etc.). Spec: common/types.ts.md#deck-format-scoped-requests.
+/// </summary>
+[MessagePackObject]
+public class DeckFormatRequest : BaseRequest
+{
+    [Key("deck_format")] public int DeckFormat { get; set; }
+}