struct RouterSwapParams {
    IERC20 tokenIn;
    IERC20 tokenOut;
    uint256 amountIn;
    uint256 amountOutMin;
    bytes swapData;
}

function _routerSwap(RouterSwapParams memory params)
    internal
    returns (uint256 amountInDelta, uint256 amountOutDelta)
{
    // Swap logic without deadline enforcement
}
