feat(protocol): Use taikoL2's address as the treasury address in circuits

packages/protocol/contracts/L1/TaikoL1.sol

@@ -199,7 +199,7 @@ contract TaikoL1 is
     /// @return Config struct containing configuration parameters.
     function getConfig() public view virtual returns (TaikoData.Config memory) {
         // All hard-coded configurations:
-        // - treasury: 0xdf09A0afD09a63fb04ab3573922437e1e637dE8b
+        // - treasury: the actual TaikoL2 address.
         // - blockMaxTxs: 150 (limited by the PSE zkEVM circuits)
         // - anchorGasLimit: 250_000 (based on internal devnet, its ~220_000
         // after 256 L2 blocks)

packages/protocol/contracts/L2/TaikoL2.sol

@@ -6,8 +6,11 @@
 
 pragma solidity 0.8.20;
 
+import "lib/openzeppelin-contracts/contracts/token/ERC20/IERC20.sol";
+
 import "../common/EssentialContract.sol";
 import "../common/ICrossChainSync.sol";
+import "../libs/LibAddress.sol";
 import "../libs/LibMath.sol";
 import "../signal/ISignalService.sol";
 import "./Lib1559Math.sol";
@@ -20,6 +23,7 @@ import "./TaikoL2Signer.sol";
 /// communication, manage EIP-1559 parameters for gas pricing, and store
 /// verified L1 block information.
 contract TaikoL2 is EssentialContract, TaikoL2Signer, ICrossChainSync {
+    using LibAddress for address;
     using LibMath for uint256;
 
     struct Config {
@@ -50,6 +54,8 @@ contract TaikoL2 is EssentialContract, TaikoL2Signer, ICrossChainSync {
     error L2_PUBLIC_INPUT_HASH_MISMATCH();
     error L2_TOO_LATE();
 
+    receive() external payable { }
+
     /// @notice Initializes the TaikoL2 contract.
     /// @param _signalService Address of the {ISignalService} contract.
     /// @param _gasExcess The initial gasExcess.
@@ -138,6 +144,17 @@ contract TaikoL2 is EssentialContract, TaikoL2Signer, ICrossChainSync {
         emit Anchored(blockhash(parentId), gasExcess);
     }
 
+    /// @notice Withdraw token or Ether from this address
+    function withdraw(address token, address to) external onlyOwner {
+        if (to == address(0)) revert L2_INVALID_PARAM();
+        if (token == address(0)) {
+            to.sendEther(address(this).balance);
+        } else {
+            IERC20 t = IERC20(token);
+            t.transfer(to, t.balanceOf(address(this)));
+        }
+    }
+
     /// @inheritdoc ICrossChainSync
     function getSyncedSnippet(uint64 blockId)
         public

packages/protocol/test/L2/TaikoL2.t.sol

@@ -46,22 +46,26 @@ contract TestTaikoL2 is TaikoTest {
         uint32 gasTarget = 60_000_000;
 
         L2 = TaikoL2EIP1559Configurable(
-            deployProxy({
-                name: "taiko_l2",
-                impl: address(new TaikoL2EIP1559Configurable()),
-                data: bytes.concat(TaikoL2.init.selector, abi.encode(address(ss), gasExcess))
-            })
+            payable(
+                deployProxy({
+                    name: "taiko_l2",
+                    impl: address(new TaikoL2EIP1559Configurable()),
+                    data: bytes.concat(TaikoL2.init.selector, abi.encode(address(ss), gasExcess))
+                })
+            )
         );
 
         L2.setConfigAndExcess(TaikoL2.Config(gasTarget, quotient), gasExcess);
 
         gasExcess = 195_420_300_100;
         L2skip = SkipBasefeeCheckL2(
-            deployProxy({
-                name: "taiko_l2",
-                impl: address(new SkipBasefeeCheckL2()),
-                data: bytes.concat(TaikoL2.init.selector, abi.encode(address(ss), gasExcess))
-            })
+            payable(
+                deployProxy({
+                    name: "taiko_l2",
+                    impl: address(new SkipBasefeeCheckL2()),
+                    data: bytes.concat(TaikoL2.init.selector, abi.encode(address(ss), gasExcess))
+                })
+            )
         );
 
         L2skip.setConfigAndExcess(TaikoL2.Config(gasTarget, quotient), gasExcess);