next.js

dcdacfd0 - test: skip hybrid not-found coverage for the legacy builder (#96534)

test: skip hybrid not-found coverage for the legacy builder (#96534) ## Summary The `pages-router-app-not-found` test verifies behavior implemented by the Next.js adapter. The legacy `@vercel/next` builder has a pre-existing behavior where it prefers the Pages Router error page for this hybrid routing case. Skip this test when deployment tests run without the adapter. It will continue running in development, `next start`, and adapter deployment tests. ## Verification - `NEXT_TEST_MODE=deploy NEXT_ENABLE_ADAPTER=0 pnpm testheadless test/e2e/app-dir/pages-router-app-not-found/pages-router-app-not-found.test.ts` - `pnpm testheadless test/e2e/app-dir/pages-router-app-not-found/pages-router-app-not-found.test.ts`