All auth config literals in the CLI were missing the required
disableSignUp field after it was added to authConfigSchema.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Reject requests from unrecognised Host headers when running
authenticated/private. Adds server middleware, CLI `allowed-hostname`
command, config-schema field, and prompt support for configuring
allowed hostnames during onboard/configure.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>