fix contract

contracts/ytVault/YTAssetFactory.sol

@@ -238,6 +238,17 @@ contract YTAssetFactory is Initializable, UUPSUpgradeable, OwnableUpgradeable {
         YTAssetVault(_vault).setManager(_manager);
     }
     
+    /**
+     * @notice 设置vault的价格过期阈值
+     * @param _vault vault地址
+     * @param _threshold 阈值（秒）
+     */
+    function setPriceStalenessThreshold(address _vault, uint256 _threshold) external onlyOwner {
+        if (!isVault[_vault]) revert VaultNotExists();
+        
+        YTAssetVault(_vault).setPriceStalenessThreshold(_threshold);
+    }
+    
     /**
      * @notice 设置vault的下一个赎回时间
      * @param _vault vault地址