chore: We have a sleep at home. The sleep at home:

src/agents/bash-tools.exec.background-abort.test.ts

@@ -1,4 +1,5 @@
 import { afterEach, expect, test } from "vitest";
+import { sleep } from "../utils.ts";
 import {
   getFinishedSession,
   getSession,
@@ -7,8 +8,6 @@ import {
 import { createExecTool } from "./bash-tools.exec";
 import { killProcessTree } from "./shell-utils";
 
-const sleep = (ms: number) => new Promise((resolve) => setTimeout(resolve, ms));
-
 afterEach(() => {
   resetProcessRegistryForTests();
 });