Co-op room creation and matchmaking stubs to prevent related softlocks

AscNet.GameServer/Handlers/CoopModule.cs

@@ -0,0 +1,50 @@
+using MessagePack;
+
+namespace AscNet.GameServer.Handlers
+{
+
+    #region MsgPackScheme
+#pragma warning disable CS8618 // Non-nullable field must contain a non-null value when exiting constructor. Consider declaring as nullable.
+    [MessagePackObject(true)]
+    public class CreateRoomRequest
+    {
+        public int StageId;
+        public int StageLevel;
+        public bool Automatch;
+    }
+
+    [MessagePackObject(true)]
+    public class CreateRoomResponse
+    {
+        public int Code;
+    }
+
+    [MessagePackObject(true)]
+    public class MatchRoomRequest
+    {
+        public int StageId;
+    }
+    
+    [MessagePackObject(true)]
+    public class MatchRoomResponse
+    {
+        public int Code;
+    }
+#pragma warning restore CS8618 // Non-nullable field must contain a non-null value when exiting constructor. Consider declaring as nullable.
+    #endregion
+
+    internal class CoopModule
+    {
+        [RequestPacketHandler("CreateRoomRequest")]
+        public static void CreateRoomRequestHandler(Session session, Packet.Request packet)
+        {
+            session.SendResponse(new CreateRoomResponse() { Code = 1 }, packet.Id);
+        }
+
+        [RequestPacketHandler("MatchRoomRequest")]
+        public static void MatchRoomRequestHandler(Session session, Packet.Request packet)
+        {
+            session.SendResponse(new MatchRoomResponse() { Code = 1 }, packet.Id);
+        }
+    }
+}