architecture.md opens on the three services, how a trace crosses them, and the directory's
modules; sso.md's diagram and config show ipx-web in front, trusting Caddy and passing headers
only from TUNNEL_PEER; configuration.md has ipx-web's variables and the Directory as the
service's; cli.md and users.md stop describing the old local Directory; directory.md has its
traces and version.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>