DTOs for index mostly done, doing DB models

SVSim.EmulatedEntrypoint/Models/Dtos/UserDeck.cs

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+using MessagePack;
+
+namespace SVSim.EmulatedEntrypoint.Models.Dtos;
+
+/// <summary>
+/// A deck belonging to a user.
+/// </summary>
+[MessagePackObject]
+public class UserDeck
+{
+    [Key("deck_no")]
+    public int DeckNumber { get; set; }
+    [Key("class_id")]
+    public int ClassId { get; set; }
+    [Key("sleeve_id")]
+    public int SleeveId { get; set; }
+    [Key("leader_skin_id")]
+    public int LeaderSkinId { get; set; }
+    [Key("deck_name")]
+    public string DeckName { get; set; } = string.Empty;
+    [Key("card_id_array")]
+    public List<int> Cards { get; set; } = new List<int>();
+    [Key("is_complete_deck")]
+    public int IsCompleteDeck { get; set; }
+    [Key("restricted_card_exists")]
+    public bool RestrictedCardExists { get; set; }
+    [Key("is_available_deck")]
+    public int IsAvailable { get; set; }
+    [Key("maintenance_card_ids")]
+    public List<int> MaintenanceCards { get; set; } = new List<int>();
+    [Key("is_include_un_possession_card")]
+    public bool IncludesNonCollectibleCards { get; set; }
+    [Key("is_random_leader_skin")]
+    public int IsRandomLeaderSkin { get; set; }
+    [Key("leader_skin_id_list")]
+    public List<int> LeaderSkinIds { get; set; } = new List<int> { 0 };
+    [Key("order_num")]
+    public int Order { get; set; }
+    [Key("create_deck_time")]
+    public DateTime DeckCreateTime { get; set; }
+}