docs/signals.md says what the admin's setting does and that a key is
checked before it is saved; the install guide lists TYPESAFE_KEY; the API
reference has Signals' routes and types and the new fields of Me and
Settings; the home page says an admin may provide the key.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
site/gen.mjs writes them from site/api.mjs, which holds each endpoint and type as the handlers
have them, and site/docs.mjs, the guides. A misspelt type in api.mjs fails the build rather than
leaving a name that links nowhere.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>