修正一个可能会引起无限刷箱子的bug

src/controllers/nft.controller.ts

@@ -180,7 +180,6 @@ class NftController extends BaseController {
     }
     let chestLevel = cfg.tier || 1
     let chest = generateNewChest(user.id, user.activity, chestLevel, ChestStatusEnum.NORMAL)
-    await chest.save()
     let recordNew = new NFTHolderRecord({
       user: user.id,
       contract,
@@ -190,6 +189,7 @@ class NftController extends BaseController {
       rewards: [chest.id],
     })
     await recordNew.save()
+    await chest.save()
     return { chests: [chest.toJson()] }
   }
 }