Forgot unversioned xd

SVSim.EmulatedEntrypoint/Models/Dtos/Responses/Practice/PracticeDeckListResponse.cs

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+using MessagePack;
+
+namespace SVSim.EmulatedEntrypoint.Models.Dtos.Responses.Practice;
+
+/// <summary>
+/// Same shape consumed by DeckGroupListData(jsonData, Format.All). Per-format keys are
+/// conditional — omit (don't send empty arrays) for formats the server doesn't enable.
+/// </summary>
+[MessagePackObject]
+public class PracticeDeckListResponse
+{
+    /// <summary>Card ids currently disabled for maintenance (client unions with global list).</summary>
+    [Key("maintenance_card_list")] public List<long> MaintenanceCardList { get; set; } = new();
+
+    [Key("user_deck_rotation")] public List<UserDeck>? UserDeckRotation { get; set; }
+    [Key("user_deck_unlimited")] public List<UserDeck>? UserDeckUnlimited { get; set; }
+
+    // The remaining format keys (pre_rotation, crossover, my_rotation, avatar, default_deck_list,
+    // trial_deck_list, crossover_trial_deck_list, build_deck_list, user_leader_skin_setting_list)
+    // are all conditional — added when those formats are enabled.
+}