- bouncer: Turnstile.Verify posts secret/response/remoteip to siteverify with
a 5 s bound and PHP's open and closed modes (503 unconfigured in production,
422 on a missing, rejected or overlong token, an error or a timeout); errors
never carry the secret or the token
- bouncer: Turnstile.Middleware reads the token from the query, a JSON body or
a form body, restores the body and writes refusals through a published
TurnstileWriter or neutral JSON
- surf: factory turnstile:open|closed from turnstile.secret/turnstile.field
(a published *bouncer.Turnstile wins), client IP with trusted proxies; any
other param fails boot
- docs: Turnstile section, middleware table, README rows