feat: eip-7702 proxy

contracts/core/upgradeable/UpgradeableOpenfortProxy7702.sol

@@ -0,0 +1,39 @@
+// SPDX-License-Identifier: GPL-3.0
+pragma solidity =0.8.19;
+
+import {ERC1967Proxy} from "@openzeppelin/contracts/proxy/ERC1967/ERC1967Proxy.sol";
+import {UpgradeableOpenfortAccount} from "./UpgradeableOpenfortAccount.sol";
+
+/**
+ * @title UpgradeableOpenfortProxy7702 (Non-upgradeable)
+ * @notice Proxy contract that support 7702 initialization
+ * It inherits from:
+ *  - ERC1967Proxy
+ */
+contract UpgradeableOpenfortProxy7702 is ERC1967Proxy {
+    constructor(address _logic, bytes memory _data) ERC1967Proxy(_logic, _data) {}
+
+    function implementation() external view returns (address) {
+        return _implementation();
+    }
+
+    function initializeAccount(
+        address _implementation,
+        address _entrypoint,
+        uint256 _recoveryPeriod,
+        uint256 _securityPeriod,
+        uint256 _securityWindow,
+        uint256 _lockPeriod,
+        address _initialGuardian
+    ) public {
+        // only callable by the EOA itself in an eip-7702 delegation
+        require(msg.sender == address(this));
+
+        // set implementation in the storage of the EOA
+        _upgradeTo(_implementation);
+
+        UpgradeableOpenfortAccount(payable(address(this))).initialize(
+            msg.sender, _entrypoint, _recoveryPeriod, _securityPeriod, _securityWindow, _lockPeriod, _initialGuardian
+        );
+    }
+}