[JasonYeYuhe]

Summary

This PR adds a comprehensive Simplified Chinese translation (README.zh.md) for Model Context Protocol (MCP) Reference Servers to lower the barrier for Chinese-speaking AI engineers, agent builders, and developers exploring official reference implementations.

• Translated overview, educational warnings, and full SDK list.
• Translated active reference servers (Everything, Fetch, Filesystem, Git, Memory, Sequential Thinking, Time) and archived servers references.
• Translated getting started guides (npx, uvx/pip) and Claude Desktop JSON configurations for macOS/Linux and Windows.
• Added bidirectional language switchers in README.md and README.zh.md.

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[cliffhall]

Thank you for this pull request, and apologies for the long wait for a response.

These servers are reference implementations: they exist to show how each part of MCP is used, not to be general-purpose products, so new features are taken selectively, and this change isn't one the maintainers plan to take. This repository also now accepts issues, not pull requests, from anyone but its maintainers; the policy is in CONTRIBUTING.md.

This is not a judgment on the idea or on you. A server in the MCP Registry may well offer it, and anyone is welcome to build on these servers to do so. If you think we've misread it, please open an issue describing the problem and the expected behavior.

This is part of the backlog triage in #4875.