docs: Split runtime hook docs into dedicated UI hook pages

[Copilot]

Runtime hook documentation was monolithic under api-runtime; split and polished per-hook docs in both English and Chinese, now living under ui/hooks for easier discovery.

• Docs structure
  • Added dedicated pages for usePageData, useLang, useVersion, useDark, and router hooks under website/docs/*/ui/hooks.
  • Updated _meta.json ordering for new hook pages.
• Runtime API overview
  • Converted api-runtime pages to an overview linking to the new hook docs.
  • Refreshed cross-references in plugin system intro to point to usePageData docs.

import { usePageData } from '@rspress/core/runtime';

export default function PageTitle() {
  const { page } = usePageData();
  return <h1>{page.title}</h1>;
}

Original prompt

修改文档

根据 docs/en/api/client-api/api-runtime，将这几个 react hooks 拆分为多个文档放在 website/docs/en/ui/hooks 下，并每篇文档润色

中英文都进行修改

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Rsdoctor Bundle Diff Analysis

📁 web

Path: website/doc_build/web/rsdoctor-data.json

⚠️ No baseline data found - Unable to perform comparison analysis

Metric	Current	Baseline	Change
📊 Total Size	14.5 MB	-	-
📄 JavaScript	13.9 MB	-	-
🎨 CSS	113.7 KB	-	-
🌐 HTML	0 B	-	-
📁 Other Assets	477.0 KB	-	-

Generated by Rsdoctor GitHub Action

[Copilot]

Pull request overview

This PR restructures the runtime hook documentation by splitting a monolithic API reference into dedicated, polished pages for each hook in both English and Chinese. The documentation is now organized under ui/hooks for improved discoverability.

• Split runtime hooks into individual documentation pages (usePageData, useLang, useVersion, useDark, router hooks)
• Updated all cross-references throughout the documentation to point to the new hook locations
• Removed the old api/client-api directory structure and integrated hooks into the UI section

Reviewed changes

Copilot reviewed 30 out of 30 changed files in this pull request and generated 3 comments.

Show a summary per file

File	Description
website/docs/{en,zh}/ui/hooks/use-version.mdx	New dedicated page documenting the useVersion hook for multi-version documentation support
website/docs/{en,zh}/ui/hooks/use-page-data.mdx	New page for usePageData hook, marked as deprecated with enhanced usage examples
website/docs/{en,zh}/ui/hooks/use-lang.mdx	New page documenting useLang hook for locale management with live preview example
website/docs/{en,zh}/ui/hooks/use-dark.mdx	New page for useDark hook with SSG/hydration warnings and CSS selector guidance
website/docs/{en,zh}/ui/hooks/router-hooks.mdx	New page documenting re-exported React Router hooks
website/docs/{en,zh}/ui/hooks/index.mdx	Overview page for the hooks section
website/docs/{en,zh}/ui/hooks/_meta.json	Updated navigation metadata to include all new hook pages in proper order
website/docs/{en,zh}/ui/custom-theme.mdx	Updated Runtime API reference link to point to new hooks location
website/docs/{en,zh}/ui/components/package-manager-tabs.mdx	Added frontmatter with tag: ejectable and updated component imports
website/docs/{en,zh}/plugin/system/introduction.mdx	Updated usePageData reference to new documentation path
website/docs/{en,zh}/plugin/official-plugins/algolia.mdx	Updated Runtime API link to new hooks overview page
website/docs/{en,zh}/api/client-api/api-runtime.mdx	Removed old monolithic runtime API documentation
website/docs/{en,zh}/api/client-api/api-components.mdx	Removed old components API page
website/docs/{en,zh}/api/client-api/_meta.json	Removed client-api directory metadata
website/docs/{en,zh}/api/_meta.json	Removed client-api directory entry from API navigation

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