DTOs for index mostly done, doing DB models

SVSim.EmulatedEntrypoint/Models/Dtos/UserPromotionMatch.cs

@@ -0,0 +1,16 @@
+using MessagePack;
+
+namespace SVSim.EmulatedEntrypoint.Models.Dtos;
+
+[MessagePackObject]
+public class UserPromotionMatch
+{
+    [Key("match_count")]
+    public int MatchCount { get; set; }
+    [Key("battle_result")]
+    public int BattleResult { get; set; }
+    [Key("win")]
+    public int Wins { get; set; }
+    [Key("lose")]
+    public int Losses { get; set; }
+}