DTOs for index mostly done, doing DB models

SVSim.EmulatedEntrypoint/Models/Dtos/ArenaFormatInfo.cs

@@ -0,0 +1,21 @@
+using MessagePack;
+using SVSim.Database.Enums;
+
+namespace SVSim.EmulatedEntrypoint.Models.Dtos;
+
+[MessagePackObject]
+public class ArenaFormatInfo
+{
+    [Key("two_pick_type")]
+    public PickTwoFormat PickTwoFormat { get; set; }
+    [Key("card_pool_name")]
+    public string CardPoolName { get; set; } = string.Empty;
+    [Key("announce_id")]
+    public string AnnounceId { get; set; } = "0";
+    [Key("card_pool_url")]
+    public string CardPoolUrl { get; set; } = string.Empty;
+    [Key("start_time")]
+    public DateTime StartTime { get; set; }
+    [Key("end_time")]
+    public DateTime EndTime { get; set; }
+}