update

contracts/ytLp/core/YTPriceFeed.sol

@@ -77,6 +77,12 @@ contract YTPriceFeed is Initializable, UUPSUpgradeable {
         priceStalenesThreshold = 3600; // 默认1小时
     }
 
+    /**
+     * @notice 授权升级（仅gov可调用）
+     * @param newImplementation 新实现合约地址
+     */
+    function _authorizeUpgrade(address newImplementation) internal override onlyGov {}
+
     /**
      * @notice 设置USDC地址
      * @param _usdcAddress USDC地址
@@ -94,12 +100,6 @@ contract YTPriceFeed is Initializable, UUPSUpgradeable {
         usdcPriceFeed = AggregatorV3Interface(_usdcPriceFeed);
     }
     
-    /**
-     * @notice 授权升级（仅gov可调用）
-     * @param newImplementation 新实现合约地址
-     */
-    function _authorizeUpgrade(address newImplementation) internal override onlyGov {}
-    
     /**
      * @notice 设置keeper权限
      * @param _keeper keeper地址