Added _disableInitializers and the unit tests

apps/blockchain/ethereum/src/Bridge.sol

@@ -13,6 +13,7 @@ import "./Messaging.sol";
 import "./UUPSProxied.sol";
 
 import "starknet/IStarknetMessaging.sol";
+import "openzeppelin-contracts/contracts/proxy/utils/Initializable.sol";
 
 import "./IStarklaneEvent.sol";
 
@@ -50,9 +51,12 @@ contract Starklane is
 
     /**
      * @notice Initializes the implementation, only callable once.
-     *
-     *    @param data Data to init the implementation.
      */
+
+     constructor() {
+        _disableInitializers();
+    }
+
     function initialize(bytes calldata data) public onlyInit {
         (
             address owner,

apps/blockchain/ethereum/test/Bridge.t.sol

@@ -55,6 +55,25 @@ contract BridgeTest is Test, IStarklaneEvent {
         IStarklane(bridge).enableBridge(true);
     }
 
+    //
+    function test_initializersDisabled() public {
+        // Deploy a new instance of Starklane
+        Starklane newStarklane = new Starklane();
+
+        // Try to initialize the contract directly
+        bytes memory initData = abi.encode(
+            address(this),
+            address(0),  // Mock Starknet Core address
+            uint256(0),  // Mock Starklane L2 address
+            uint256(0)   // Mock Starklane L2 selector
+        );
+
+        // Expect the initialization to revert
+        vm.expectRevert("Initializable: contract is already initialized");
+        newStarklane.initialize(initData);
+    }
+
+
     //
     function testFail_invalidIds() public {
         uint256[] memory ids = new uint256[](0);