Add incrementCounters script

script/incrementCounters.s.sol

@@ -0,0 +1,49 @@
+// SPDX-License-Identifier: MIT
+pragma solidity ^0.8.0;
+
+import {Script} from "forge-std/Script.sol";
+import {console} from "forge-std/Console.sol";
+import {CounterDeployer} from "../src/CounterDeployer.sol";
+import {CounterAppGateway} from "../src/CounterAppGateway.sol";
+
+contract IncrementCounters is Script {
+    function run() external {
+        string memory socketRPC = vm.envString("SOCKET_RPC");
+        uint256 deployerPrivateKey = vm.envUint("PRIVATE_KEY");
+
+        vm.createSelectFork(socketRPC);
+
+        CounterDeployer deployer = CounterDeployer(
+            vm.envAddress("COUNTER_DEPLOYER")
+        );
+        CounterAppGateway gateway = CounterAppGateway(
+            vm.envAddress("COUNTER_APP_GATEWAY")
+        );
+
+        address counterForwarderArbitrumSepolia = deployer.forwarderAddresses(
+            deployer.counter(),
+            421614
+        );
+        address counterForwarderOptimismSepolia = deployer.forwarderAddresses(
+            deployer.counter(),
+            11155420
+        );
+        address counterForwarderBaseSepolia = deployer.forwarderAddresses(
+            deployer.counter(),
+            84532
+        );
+        address counterForwarderSepolia = deployer.forwarderAddresses(
+            deployer.counter(),
+            11155111
+        );
+
+        address[] memory instances = new address[](4);
+        instances[0] = counterForwarderArbitrumSepolia;
+        instances[1] = counterForwarderOptimismSepolia;
+        instances[2] = counterForwarderBaseSepolia;
+        instances[3] = counterForwarderSepolia;
+
+        vm.startBroadcast(deployerPrivateKey);
+        gateway.incrementCounters(instances);
+    }
+}