Every intra-doc link `cargo doc --workspace --no-deps` warned on now
resolves or is plain code: the private constant and helper, the removed
`InterpString::resolve`, the lithos `Message`, the sandbox-driver facets,
the `RunOptions::git_author` the cutover removed, and the stale
`platform_record_for` paragraph on the platform records. The `[@REF]`
segment of `fabro run`'s help text is allowed as help, not a link. A
`Rustdoc` job runs the same command with `-D warnings`.
Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>