feat: delegatecall to executor in SwapExecutionDispatcher

foundry/test/SwapExecutionDispatcher.t.sol

@@ -0,0 +1,36 @@
+// SPDX-License-Identifier: UNLICENSED
+pragma solidity ^0.8.28;
+
+import "@src/SwapExecutionDispatcher.sol";
+import "./TychoRouterTestSetup.sol";
+
+
+contract SwapExecutionDispatcherExposed is SwapExecutionDispatcher {
+    function exposedDecodeExecutorAndSelector(bytes calldata data)
+        external
+        pure
+        returns (address executor, bytes4 selector, bytes memory protocolData)
+    {
+        return _decodeExecutorAndSelector(data);
+    }
+}
+
+contract SwapExecutionDispatcherTest is TychoRouterTestSetup {
+    SwapExecutionDispatcherExposed dispatcherExposed;
+
+    function setupExecutionDispatcher() public {
+        dispatcherExposed = new SwapExecutionDispatcherExposed();
+    }
+
+    function testDecodeExecutorAndSelector() public {
+        setupExecutionDispatcher();
+        bytes memory data =
+            hex"6611e616d2db3244244a54c754a16dd3ac7ca7a2aabbccdd1111111111111111";
+        (address executor, bytes4 selector, bytes memory protocolData) =
+            dispatcherExposed.exposedDecodeExecutorAndSelector(data);
+        assert(executor == address(0x6611e616d2db3244244A54c754A16dd3ac7cA7a2));
+        assert(selector == bytes4(0xaabbccdd));
+        // Direct bytes comparison not supported - must use keccak
+        assert(keccak256(protocolData) == keccak256(hex"1111111111111111"));
+    }
+}