feat(test): enable React Compiler in vitest#2711
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Run `babel-plugin-react-compiler` through `@rolldown/plugin-babel` + `reactCompilerPreset` so the memoize behavior in unit tests matches production (Next.js). Keeps hooks and components free of manual `useCallback` / `useMemo` while still catching regressions in tests. Co-Authored-By: Claude Opus 4.7 (1M context) <[email protected]>
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Summary
@rolldown/plugin-babel+reactCompilerPresetを vitest の unit プロジェクトに配線し、babel-plugin-react-compilerを有効化useCallback/useMemoを書かなくてもuseSyncExternalStore等の参照安定性を前提にしたコードがテストで検証できる@vitejs/plugin-reactv6 以降babelオプションが削除されたため、公式 README が案内する@rolldown/plugin-babel経由の構成を採用依存追加
@rolldown/plugin-babel@babel/core@types/babel__core(TS 用)Test plan
pnpm test:unitが通るpnpm checkが通るuseSyncExternalStoreを使うもの）で再レンダー時の参照安定をテストで担保できるReference
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