chore: reuse shared test utilities

package.json

@@ -36,6 +36,7 @@
     "@astrojs/sitemap": "^3.7.3",
     "@rslib/core": "0.23.1",
     "@rslint/core": "^0.6.4",
+    "@rstackjs/test-utils": "^0.2.0",
     "@rstest/core": "^0.10.6",
     "@types/fs-extra": "^11.0.4",
     "@types/node": "24.13.2",

pnpm-workspace.yaml

@@ -1,2 +1,4 @@
 allowBuilds:
   core-js: false
+minimumReleaseAgeExclude:
+  - '@rstackjs/*'

tests/prebundle.test.ts

@@ -1,6 +1,7 @@
 import { afterAll, beforeAll, describe, expect, it } from '@rstest/core';
+import { prepareDist } from '@rstackjs/test-utils';
 import { execFile } from 'node:child_process';
-import { promises as fs, readdirSync } from 'node:fs';
+import { readdirSync } from 'node:fs';
 import { join, relative, sep } from 'node:path';
 import { pathToFileURL } from 'node:url';
 import { promisify } from 'node:util';
@@ -46,14 +47,14 @@ beforeAll(async () => {
   for (const target of targetPackages) {
     const distPath = join(process.cwd(), 'compiled', target.name);
     bundledPaths.set(target.name, distPath);
-    await resetDist(distPath);
+    await prepareDist(distPath);
   }
   await runPrebundle();
 });
 
 afterAll(async () => {
   for (const distPath of bundledPaths.values()) {
-    await resetDist(distPath);
+    await prepareDist(distPath);
   }
 });
 
@@ -67,13 +68,6 @@ describe('prebundle integration smoke tests', () => {
   });
 });
 
-async function resetDist(distPath?: string) {
-  if (!distPath) {
-    return;
-  }
-  await fs.rm(distPath, { recursive: true, force: true });
-}
-
 function readRelativeFileTree(distPath: string) {
   const results: string[] = [];
   const walk = (dir: string) => {