fix(agent): stabilize post-merge release paths

web/playwright.config.ts

@@ -5,6 +5,7 @@ export default defineConfig({
   fullyParallel: true,
   forbidOnly: !!process.env.CI,
   retries: process.env.CI ? 1 : 0,
+  workers: process.env.CI ? undefined : 1,
   reporter: process.env.CI ? [['github'], ['list']] : 'list',
   use: {
     baseURL: 'http://127.0.0.1:4173',