docs(en): merge reactjs.org/main into zh-hans.reactjs.org/main @ 2534424e

[docschina-bot]

此 PR 自动生成。

合并 reactjs/reactjs.org 的修改至本仓库（@ 2534424）

以下文件存在冲突，可能需要重新翻译：

• tree.
• src/components/Layout/HomeContent.js
• src/content/blog/2023/03/22/react-labs-what-we-have-been-working-on-march-2023.md
• src/content/blog/2024/12/05/react-19.md
• src/content/learn/add-react-to-an-existing-project.md
• src/content/learn/synchronizing-with-effects.md
• src/content/learn/typescript.md
• src/content/learn/you-might-not-need-an-effect.md
• src/content/learn/your-first-component.md
• src/content/reference/react-dom/client/createRoot.md
• src/content/reference/react-dom/client/index.md
• src/content/reference/react-dom/index.md
• src/content/reference/react-dom/preinit.md
• src/content/reference/react-dom/preinitModule.md
• src/content/reference/react-dom/preload.md
• src/content/reference/react-dom/preloadModule.md
• src/content/reference/react-dom/server/index.md
• src/content/reference/react-dom/static/index.md
• src/content/reference/react/useEffect.md
• src/content/reference/react/useTransition.md
• src/content/reference/rsc/directives.md
• src/content/reference/rsc/use-client.md

请解决所有冲突后提交到此 pull request，可直接在 Github 修改、切换到 sync-2534424e 分支进行修改或者使用 Github Desktop 拉取此 pr 修改并提交。

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使用该操作会导致上游仓库的内容丢失，并致使下一次合并产生冲突。

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Project	Deployment	Preview	Comments	Updated (UTC)
zh-hans-react-dev	Ready	Preview	Comment	Nov 16, 2025 0:05am

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Size changes

📦 Next.js Bundle Analysis for react-dev

This analysis was generated by the Next.js Bundle Analysis action. 🤖

Five Pages Changed Size

The following pages changed size from the code in this PR compared to its base branch:

Page	Size (compressed)	First Load
/404	130.32 KB (🟡 +5 B)	240.89 KB
/500	130.33 KB (🟡 +5 B)	240.9 KB
/[[...markdownPath]]	133 KB (🟡 +5 B)	243.58 KB
/errors	130.57 KB (🟡 +5 B)	241.15 KB
/errors/[errorCode]	130.55 KB (🟡 +5 B)	241.12 KB

Details

Only the gzipped size is provided here based on an expert tip.

First Load is the size of the global bundle plus the bundle for the individual page. If a user were to show up to your website and land on a given page, the first load size represents the amount of javascript that user would need to download. If next/link is used, subsequent page loads would only need to download that page's bundle (the number in the "Size" column), since the global bundle has already been downloaded.

Any third party scripts you have added directly to your app using the <script> tag are not accounted for in this analysis

Next to the size is how much the size has increased or decreased compared with the base branch of this PR. If this percentage has increased by 10% or more, there will be a red status indicator applied, indicating that special attention should be given to this.