Adding benchmarks/* to the workspace in the vite v8 bump caused pnpm to
hoist next out of benchmarks/nextjs/node_modules into the monorepo root.
Turbopack then couldn't find next/package.json from the project directory,
failing with a workspace root inference error.
Fix by listing benchmarks/vinext and benchmarks/vinext-rolldown explicitly
instead of using the glob, leaving benchmarks/nextjs isolated with its own
node_modules.
Also remove the eslint key from next.config.ts — it was removed from the
NextConfig type in Next.js 16 and caused an 'Unrecognized key' warning.
* add oxfmt formatter: config, scripts, CI, editor setup, docs
* rebuild lockfile
* fix: add Format to required checks list, remove dead ignore pattern
* run fmt
* add format to agents.md again
James Anderson