docs: README 增加 MCP 服务简介

[sunnylqm]

在中英文 README 的「优势 / Advantages」列表里各加一条 MCP 服务：把热更新服务接进 Claude Desktop、IDE 或自建 Agent，用自然语言排查"这台设备为什么没收到更新"，并可与 GitHub、Sentry、CI 组合定位问题；全程只读、按应用授权。

两条都链到对应站点的 /docs/mcp（Pushy 与 Cresc 各一份），排在开放 API 之后、技术支持之前 —— 它属于"能力"而不是"服务承诺"。

🤖 Generated with Claude Code

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Summary by CodeRabbit

• Documentation
  • Added information about read-only, app-scoped MCP server integration.
  • Documented support for troubleshooting through Claude Desktop, IDEs, or custom agents, with integrations for GitHub, Sentry, and CI.
  • Renumbered the paid technical support item.

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Pro Plus

Run ID: c3778698-c725-4887-ac37-f049a1105ec0

📥 Commits

Reviewing files that changed from the base of the PR and between 0aef8b5 and beb6a7a.

📒 Files selected for processing (2)

• README-CN.md
• README.md

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📝 Walkthrough

Walkthrough

The English and Chinese README files add an MCP server advantage. The text describes read-only, app-scoped access and integrations with Claude Desktop, IDEs, agents, GitHub, Sentry, and CI. Paid technical support is renumbered as item 10.

Changes

MCP documentation

Layer / File(s)	Summary
README advantage updates README.md, README-CN.md	The README files add the MCP server description and renumber paid technical support to item 10.

Estimated code review effort: 1 (Trivial) | ~2 minutes

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	标题准确概括了在 README 中新增 MCP 服务简介这一主要变更。
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch claude/mcp-readme

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