refactor(fight): 重构战斗模块

- 移除未使用的结构体和接口
- 优化战斗准备和邀请逻辑
- 调整玩家和怪物信息的处理方式
- 更新战斗相关的数据结构
- 重构战斗模式和邀请相关代码

logic/controller/room.go

@@ -26,7 +26,7 @@ func (h Controller) OnGetRoomPetShowInfo(data *room.PetRoomListInboundInfo, c *s
 // 获取自己房间的家具
 func (h Controller) OnGetFitmentAll(data *room.FitmentAllInboundEmpty, c *socket.Player) (result *room.FitmentAllOutboundInfo, err errorcode.ErrorCode) {
 	result = &room.FitmentAllOutboundInfo{}
-	result.Fitments = make([]room.FitmentShowInfo, 0)
-	result.Fitments = append(result.Fitments, room.FitmentShowInfo{Id: 500001, Status: 1, X: 1, Y: 1, Dir: 1})
+	result.Fitments = make([]room.FitmentItemInfo, 0)
+
 	return
 }