Add the starlight-llms-txt plugin so the docs build emits llms.txt,
llms-full.txt, and llms-small.txt alongside the regular pages, making
the manual queryable by MCP-compatible agents without depending on a
third-party indexing service.
Also bump js-yaml, nanoid, and sharp in docs/site to clear three
high-severity advisories (quadratic YAML omap parsing, a zero-size
nanoid loop, and inherited libvips CVEs) flagged by npm audit while
touching the same lockfile.