feat: migrate less to token for Checkbox

[poyiding]

[中文版模板 / Chinese template]

🤔 This is a ...

• New feature
• Bug fix
• Site / documentation update
• Demo update
• Component style update
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🔗 Related issue link

💡 Background and solution

ref #41884

📝 Changelog

Language	Changelog
🇺🇸 English	migrate less to token for Checkbox
🇨🇳 Chinese	Checkbox 组件less变量迁移

☑️ Self-Check before Merge

⚠️ Please check all items below before requesting a reviewing. ⚠️

• Doc is updated/provided or not needed
• Demo is updated/provided or not needed
• TypeScript definition is updated/provided or not needed
• Changelog is provided or not needed

---

🚀 Summary

🤖 Generated by Copilot at 8d7fece

Moved checkboxSize from less variable to component token for Checkbox component. Updated the migration guide for less variables to component tokens in both English and Chinese documentation.

🔍 Walkthrough

🤖 Generated by Copilot at 8d7fece

• Move checkboxSize property from CheckboxToken to ComponentToken interface to enable user customization of checkbox size through componentConfig prop (link)
• Remove checkboxSize property from getStyle function and use component token instead to calculate checkbox width and height (link, link)
• Modify genComponentStyleHook function to accept a function that returns component token based on style token, and use it to derive checkboxSize from controlInteractiveSize global variable (link)
• Add Checkbox component to migration guide for less variables to component tokens in English and Chinese documentation, and explain the deprecated or changed less variables and the new component token API (docs/react/migrate-less-variables.en-US.md, docs/react/migrate-less-variables.zh-CN.md, link, link)

[github-actions]

[MadCcc]

PR body 里 changelog 填一下

[MadCcc]

lint 有问题，类型需要改一下，可以参照其他的组件，checkbox 的 ComponentToken 这个类型没有使用过大概
参考：https://github.com/ant-design/ant-design/pull/42083/files#diff-1d8c7d2026da8b02ccc59970cea90849086b133e4b8f55d59ae475ac814d9e1bR95

[poyiding]

lint 有问题，类型需要改一下，可以参照其他的组件，checkbox 的 ComponentToken 这个类型没有使用过大概 参考：https://github.com/ant-design/ant-design/pull/42083/files#diff-1d8c7d2026da8b02ccc59970cea90849086b133e4b8f55d59ae475ac814d9e1bR95

需要 @MadCcc 给genComponentStyleHooks 加上组件依赖

[MadCcc]

这个可以加回来

[MadCcc]

这个这样的话就可以不用把 checkboxSize 移到 ComponentToken 里去了

[codecov]

Codecov Report

Patch coverage: 100.00% and no project coverage change.

Comparison is base (65d7a5b) 100.00% compared to head (eb2b62d) 100.00%.

Additional details and impacted files

@@            Coverage Diff            @@
##           feature    #42097   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files          640       640           
  Lines        10855     10855           
  Branches      2950      2950           
=========================================
  Hits         10855     10855           

Impacted Files	Coverage Δ
components/tag/index.tsx	100.00% <100.00%> (ø)

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