docs(en): merge docs-cn/sync-docs into docs-cn/dev @ 941b14f8

[docschina-bot]

此 PR 自动生成。

合并 vitest-dev/docs-cn 的修改至本仓库（@ 941b14f）

以下文件存在冲突，可能需要重新翻译：

• guide/learn/writing-tests-with-ai.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-941b14f8-1 分支进行修改或者使用 Github Desktop 拉取此 pr 修改并提交。

禁止使用 Squash Merge 来合并此 Pull Request！

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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[chatgpt-codex-connector]

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[chatgpt-codex-connector]

Remove unresolved merge conflict markers

This section still contains the merge-conflict marker from the sync commit, so the generated documentation will publish both the Chinese and English variants along with <<<<<<<, =======, and >>>>>>> artifacts instead of a resolved translation. Resolve the conflict and keep the intended Chinese content before merging.

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