Add client-side search widget (per-version local index)
Add @easyops-cn/docusaurus-search-local as a theme, with a right-aligned navbar search box. The index is built at build time and sharded per docs version (current, 0.7.0, 0.6.0); results are scoped to the version being browsed, with no merged cross-version results. Runs entirely client-side, so it works on static hosting with no external service.
Co-Authored-By: Claude Opus 4.8 (1M context) noreply@anthropic.com