DTOs for index mostly done, doing DB models

SVSim.EmulatedEntrypoint/Models/Dtos/BattlePassLevel.cs

@@ -0,0 +1,12 @@
+using MessagePack;
+
+namespace SVSim.EmulatedEntrypoint.Models.Dtos;
+
+[MessagePackObject]
+public class BattlePassLevel
+{
+    [Key("level")]
+    public int Level { get; set; }
+    [Key("required_point")]
+    public int RequiredPoints { get; set; }
+}