merge transactions and update

internal/blockchain/eth/draft/multiSend_eth.sol

@@ -0,0 +1,13 @@
+// SPDX-License-Identifier: MIT 
+pragma solidity ^0.8.0;
+
+contract MultiSend {
+    function multiTransfer(address[] calldata to, uint256[] calldata amounts) external payable {
+        uint256 length = to.length;
+        require(length == amounts.length, "Arrays must have the same length");
+
+        for (uint256 i = 0; i < length; i++) {
+            payable(to[i]).transfer(amounts[i]);
+        }
+    }
+}

internal/blockchain/eth/draft/multiSend_usdt.sol

@@ -0,0 +1,24 @@
+// SPDX-License-Identifier: MIT 
+pragma solidity ^0.8.0;
+
+interface IERC20 {
+    function transfer(address recipient, uint256 amount) external returns (bool);
+}
+
+contract MultiSendUSDT {
+    address public tokenAddress;
+
+    constructor(address _tokenAddress) {
+        tokenAddress = _tokenAddress;
+    }
+
+    function multiTransfer(address[] calldata to, uint256[] calldata amounts) external {
+        IERC20 token = IERC20(tokenAddress);
+        uint256 length = to.length;
+        require(length == amounts.length, "Arrays must have the same length");
+
+        for (uint256 i = 0; i < length; i++) {
+            token.transfer(to[i], amounts[i]);
+        }
+    }
+}