refactor(item): 统一物品操作接口并优化金币处理逻辑

logic/service/fight/input.go

@@ -163,17 +163,22 @@ func (f *FightC) initplayer(c common.PlayerI) (*input.Input, errorcode.ErrorCode
 	}
 
 	in.SortPet()
+	if len(in.AllPet) == 0 {
+		return nil, errorcode.ErrorCodes.ErrNoEligiblePokemon
+	}
 
 	switch f.Info.Mode {
 	case info.BattleMode.SINGLE_MODE:
 		in.AllPet = in.AllPet[:1]
 	case info.BattleMode.PET_MELEE:
 		in.AllPet = make([]*info.BattlePetEntity, 0)
-		if len(meetpet) == 0 {
-			initmeetpet()
-		}
+		// if len(meetpet) == 0 {
+		// 	initmeetpet()
+		// }
 		r := service.NewMELEEService().Def()
-
+		if len(r) == 0 {
+			return nil, errorcode.ErrorCodes.ErrNoEligiblePokemon
+		}
 		for i, v := range r {
 
 			if v.Lv == 0 {