test(sw): shared Playwright runtime resolver

packages/sw/tests/theme-inheritance.browser.mjs

@@ -8,13 +8,12 @@
 //    so any difference would be a regression. Pixels are compared with a control shot taken after the CURRENT token
 //    blocks are injected once more (2026-10-20): re-declaring them alone re-rasterizes a few gradient pixels.
 // Usage: node packages/sw/tests/theme-inheritance.browser.mjs <storybook-url> <out-dir>
-import { createRequire } from 'node:module'
 import { mkdir, readFile, writeFile } from 'node:fs/promises'
 import path from 'node:path'
 import { fileURLToPath } from 'node:url'
+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 { PNG } = require('pngjs')
 const pixelmatch = require('pixelmatch').default ?? require('pixelmatch')