refactor: consolidate async timing helpers (#99721)

scripts/dev/discord-acp-plain-language-smoke.ts

@@ -17,6 +17,7 @@ import {
   redactForDevToolLog,
   redactHomePath,
 } from "../lib/dev-tooling-safety.ts";
+import { sleep } from "../lib/sleep.mjs";
 
 function writeStdoutLine(message: string): void {
   process.stdout.write(`${message}\n`);
@@ -157,12 +158,6 @@ class CliArgumentError extends Error {
   override name = "CliArgumentError";
 }
 
-function sleep(ms: number): Promise<void> {
-  return new Promise((resolve) => {
-    setTimeout(resolve, ms);
-  });
-}
-
 function remainingTimeoutMs(deadlineMs: number, nowMs = Date.now()): number {
   const remaining = Math.floor(deadlineMs - nowMs);
   if (!Number.isFinite(deadlineMs) || remaining <= 0) {

scripts/dev/tui-pty-test-watch.ts

@@ -4,6 +4,7 @@ import { mkdir, open, writeFile } from "node:fs/promises";
 import { createRequire } from "node:module";
 import path from "node:path";
 import { pathToFileURL } from "node:url";
+import { sleep as delay } from "../lib/sleep.mjs";
 import { resolveWindowsTaskkillPath } from "../lib/windows-taskkill.mjs";
 
 type Options = {
@@ -119,12 +120,6 @@ function parseOptions(args = process.argv.slice(2)): Options {
   };
 }
 
-function delay(ms: number): Promise<void> {
-  return new Promise((resolve) => {
-    setTimeout(resolve, ms);
-  });
-}
-
 function shouldUseAltScreen(options: Options) {
   return options.altScreen && process.stdout.isTTY;
 }