add StakeManager contract

script/StakeManager.s.sol

@@ -2,17 +2,17 @@
 pragma solidity ^0.8.13;
 
 import {Script, console} from "forge-std/Script.sol";
-import {Counter} from "../src/Counter.sol";
+import {StakeManager} from "../src/StakeManager.sol";
 
-contract CounterScript is Script {
-    Counter public counter;
+contract StakeManagerScript is Script {
+    StakeManager public stakeManager;
 
     function setUp() public {}
 
     function run() public {
         vm.startBroadcast();
 
-        counter = new Counter();
+        stakeManager = new StakeManager();
 
         vm.stopBroadcast();
     }

src/StakeManager.sol

@@ -1,7 +1,7 @@
 // SPDX-License-Identifier: UNLICENSED
 pragma solidity ^0.8.13;
 
-contract Counter {
+contract StakeManager {
     uint256 public number;
 
     function setNumber(uint256 newNumber) public {

test/Counter.t.sol

@@ -1,24 +0,0 @@
-// SPDX-License-Identifier: UNLICENSED
-pragma solidity ^0.8.13;
-
-import {Test, console} from "forge-std/Test.sol";
-import {Counter} from "../src/Counter.sol";
-
-contract CounterTest is Test {
-    Counter public counter;
-
-    function setUp() public {
-        counter = new Counter();
-        counter.setNumber(0);
-    }
-
-    function test_Increment() public {
-        counter.increment();
-        assertEq(counter.number(), 1);
-    }
-
-    function testFuzz_SetNumber(uint256 x) public {
-        counter.setNumber(x);
-        assertEq(counter.number(), x);
-    }
-}

test/StakeManager.t.sol

@@ -0,0 +1,13 @@
+// SPDX-License-Identifier: UNLICENSED
+pragma solidity ^0.8.13;
+
+import {Test, console} from "forge-std/Test.sol";
+import {StakeManager} from "../src/StakeManager.sol";
+
+contract StakeManagerTest is Test {
+    StakeManager public stakeManager;
+
+    function setUp() public {
+        stakeManager = new StakeManager();
+    }
+}