Crate reference

One page per Rust workspace crate — its own README.md, unchanged, served here for browsing alongside the rest of the docs site. The crate's own README.md is the source of truth; nothing here is hand-maintained. Every page is generated at build time (nix/packages/reference-docs.nix, hyperhive#3051) straight from the crate's real README.md, so it can never drift out of sync the way a hand-copied mirror would — edit the crate's own README to change what shows up here.

For the one-line-per-crate index (which crate does what, at a glance) see the main CLAUDE.md repo map instead; this section is each crate's own, longer word on itself.