refactor(service): 重构物品、宠物和任务服务，统一使用EX模型和回调函数处理数据操作

modules/blazing/model/item.go

@@ -10,8 +10,13 @@ const TableNamePlayerBagItem = "player_bag_item"
 type Item struct {
 	*cool.Model
 	PlayerID uint64 `gorm:"not null;index:idx_player_bag_item_by_player_id;comment:'所属玩家ID'" json:"player_id"`
-	Data     string `gorm:"type:text;not null;comment:'全部数据'" json:"data"`
+	Data     string ` gorm:"type:text;not null;comment:'全部数据'" json:"data"`
 }
+type ItemEX struct {
+	Item
+	Data map[uint32]SingleItemInfo `orm:"data" json:"data"`
+}
+
 type SingleItemInfo struct {
 	// 物品Id，
 	ItemId uint32 `json:"itemId"`