DTOs for index mostly done, doing DB models

SVSim.EmulatedEntrypoint/Models/Dtos/UserRankInfo.cs

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+using MessagePack;
+
+namespace SVSim.EmulatedEntrypoint.Models.Dtos;
+
+[MessagePackObject]
+public class UserRankInfo
+{
+    [Key("deck_format")]
+    public int DeckFormat { get; set; }
+    [Key("rank")]
+    public int Rank { get; set; }
+    [Key("battle_point")]
+    public int BattlePoints { get; set; }
+    [Key("successive_win_number")]
+    public int WinStreak { get; set; }
+    [Key("successive_losses_number")]
+    public int LossStreak { get; set; }
+    [Key("is_promotion")]
+    public int IsPromotion { get; set; }
+    [Key("is_master_rank")]
+    public int IsMasterRank { get; set; }
+    [Key("is_grand_master_rank")]
+    public bool IsGrandMasterRank { get; set; }
+    [Key("master_point")]
+    public int MasterPoints { get; set; }
+    [Key("period_grand_master_point")]
+    public int PeriodGrandMasterPoints { get; set; }
+    [Key("target_grand_master_point")]
+    public int TargetGrandMasterPoints { get; set; }
+    [Key("current_grand_master_point")]
+    public int CurrentGrandMasterPoints { get; set; }
+    [Key("user_promotion_match")]
+    public UserPromotionMatch? UserPromotionMatch { get; set; }
+}