```

feat(fight): 实现精灵大乱斗模式并优化对战逻辑

新增大乱斗模式(PET_MELEE)支持，重构原有精灵王之战相关逻辑。
更新战斗初始化流程，添加随机精灵选择机制。
调整玩家匹配与取消邀请接口实现方式。
完善战斗结束处理函数，移除未实现异常抛出。
```

logic/controller/fight_pvp_king.go

@@ -3,14 +3,24 @@ package controller
 import (
 	"blazing/common/socket/errorcode"
 	"blazing/logic/service/fight"
+	"blazing/logic/service/fight/info"
 	"blazing/logic/service/player"
 )
 
-//精灵王之战
+//大乱斗
 
-func (h Controller) PvpKingFight(data *fight.StartPetWarInboundInfo, c *player.Player) (result *fight.NullOutboundInfo, err errorcode.ErrorCode) {
+func (h Controller) PET_MELEE(data *fight.StartPetWarInboundInfo, c *player.Player) (result *fight.NullOutboundInfo, err errorcode.ErrorCode) {
 	if !c.CanFight() {
 		return nil, errorcode.ErrorCodes.ErrPokemonNotEligible
 	}
+
+	c.PVPinfo = &info.PVPinfo{
+		Mode:   info.BattleMode.PET_MELEE,
+		Status: info.BattleStatus.FIGHT_WITH_PLAYER}
+	g := c.PET_MELEE()
+	if g != nil {
+		fight.NewFight(info.BattleMode.PET_MELEE, info.BattleStatus.FIGHT_WITH_PLAYER, c.PET_MELEE(), c) ///开始对战,房主方以及被邀请方
+	}
+
 	return
 }

logic/controller/fight_pvp_withplayer.go

@@ -35,7 +35,7 @@ func (h Controller) OnPlayerInviteOtherFight(data *fight.InviteToFightInboundInf
 
 // 取消和他人战斗
 func (h Controller) OnPlayerCanceledOtherInviteFight(data *fight.InviteFightCancelInboundInfo, c *player.Player) (result *fight.NullOutboundInfo, err errorcode.ErrorCode) {
-	c.CancelBattle()
+	c.PVPinfo = nil
 
 	return nil, 0
 }