docs: ApiLink generates correct URL for versioned docs

[Copilot]

ApiLink always resolved to /api/<ClassName> regardless of the active Docusaurus version, causing broken-link CI failures for PRs that introduce new public classes (which only exist in the unreleased next API docs).

Changes

• website/src/components/ApiLink.jsx
  • Replaced static /api/${to} link with version-aware routing using useDocsVersion (mirrors the approach in the JS Crawlee sister project)
  • Updated import from deprecated @docusaurus/theme-common/internal → @docusaurus/plugin-content-docs/client (correct Docusaurus 3.x API)
  • Routing logic:
    • Versioning disabled or latest stable (version.isLast) → /api/${to}
    • current/unreleased version → /api/next/${to}
    • Older versions → /api/${version}/${to}

Issues

Testing

Verified routing logic covers all version states. No unit test infrastructure exists for the website components.

Checklist

• CI passed

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 92.53%. Comparing base (6b91edc) to head (89d30b7).

Additional details and impacted files

@@           Coverage Diff           @@
##           master    #1870   +/-   ##
=======================================
  Coverage   92.53%   92.53%           
=======================================
  Files         158      158           
  Lines       11078    11078           
=======================================
  Hits        10251    10251           
  Misses        827      827           

Flag	Coverage Δ
unit	92.53% <ø> (ø)

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[vdusek]

thanks, and do it also for SDK and client please