新增私聊相关

Hotfix/Social/Chat/Handler/C2S_GetOfflineMessageRequestHandler.cs

@@ -0,0 +1,24 @@
+// using Fantasy;
+// using Fantasy.Async;
+// using Fantasy.Network.Interface;
+//
+// namespace NB.Chat;
+//
+// public class
+//     C2S_GetOfflineMessageRequestHandler : RouteRPC<SocialUnit, C2S_GetOfflineMessageRequest,
+//     S2C_GetOfflineMessageResponse>
+// {
+//     protected override async FTask Run(SocialUnit entity, C2S_GetOfflineMessageRequest request,
+//         S2C_GetOfflineMessageResponse response,
+//         Action reply)
+//     {
+//         var chatUnitManage = entity.Scene.GetComponent<SocialUnitManageComponent>();
+//         if (chatUnitManage.NotSendMessage.TryGetValue(entity.Id, out var list))
+//         {
+//             response.Message.AddRange(list);
+//             chatUnitManage.NotSendMessage.RemoveByKey(entity.Id);
+//         }
+//
+//         await FTask.CompletedTask;
+//     }
+// }