test(sw): shared Playwright runtime resolver

packages/sw/tests/viewer.browser.mjs

@@ -3,12 +3,11 @@
 // 2) Runs interaction checks on the Stories (menus, keyboard, Escape, outside click, panels, More, modal).
 // Usage: node packages/sw/tests/viewer.browser.mjs <storybook-url> <reference-url|-> <out-dir>
 //   e.g. node packages/sw/tests/viewer.browser.mjs http://127.0.0.1:6034 http://127.0.0.1:5182 docs/sw/viewer-qa
-import { createRequire } from 'node:module'
 import { mkdir, writeFile } from 'node:fs/promises'
 import path from 'node:path'
+import { runtimeRequire } from './playwright-runtime.mjs'
 
-const runtime = process.env.SW_RUNTIME_MODULES ?? 'C:/Users/user/.cache/codex-runtimes/codex-primary-runtime/dependencies/node/node_modules'
-const require = createRequire(path.join(runtime, 'index.js'))
+const require = runtimeRequire()
 const { chromium } = require('playwright')
 const [storybook, reference, outArg] = process.argv.slice(2)
 const out = path.resolve(outArg ?? 'docs/sw/viewer-qa')