Flash unwinder contracts and scripts, relay lane tuning, trustless bridge and token-aggregation updates.

Made-with: Cursor

script/deploy/DeployUniswapV3ExternalUnwinder.s.sol

@@ -0,0 +1,37 @@
+// SPDX-License-Identifier: MIT
+pragma solidity ^0.8.20;
+
+import {Script, console} from "forge-std/Script.sol";
+import {UniswapV3ExternalUnwinder} from "../../contracts/flash/UniswapV3ExternalUnwinder.sol";
+
+/**
+ * @title DeployUniswapV3ExternalUnwinder
+ * @notice Deploy UniswapV3ExternalUnwinder for quote-push unwind legs (cW* -> USDC on V3).
+ *
+ * Env:
+ *   PRIVATE_KEY                        required
+ *   UNISWAP_V3_SWAP_ROUTER_MAINNET     optional; defaults to legacy SwapRouter `0xE592...` on Ethereum mainnet
+ *
+ * Usage:
+ *   forge script script/deploy/DeployUniswapV3ExternalUnwinder.s.sol:DeployUniswapV3ExternalUnwinder \
+ *     --rpc-url $ETHEREUM_MAINNET_RPC --broadcast -vvvv
+ */
+contract DeployUniswapV3ExternalUnwinder is Script {
+    /// @dev SwapRouter02 (`0x68b3…`) is multicall-based and does not expose the legacy `exactInputSingle` ABI used by `UniswapV3ExternalUnwinder`.
+    address internal constant DEFAULT_UNISWAP_V3_ROUTER_MAINNET = 0xE592427A0AEce92De3Edee1F18E0157C05861564;
+
+    function run() external {
+        uint256 pk = vm.envUint("PRIVATE_KEY");
+        address router = vm.envOr("UNISWAP_V3_SWAP_ROUTER_MAINNET", DEFAULT_UNISWAP_V3_ROUTER_MAINNET);
+        address deployer = vm.addr(pk);
+
+        console.log("Deployer:", deployer);
+        console.log("Uniswap V3 router:", router);
+
+        vm.startBroadcast(pk);
+        UniswapV3ExternalUnwinder unwinder = new UniswapV3ExternalUnwinder(router);
+        vm.stopBroadcast();
+
+        console.log("UniswapV3ExternalUnwinder:", address(unwinder));
+    }
+}