The image passes neither -config nor -url, so a deployment had no way to
set external_url and the server built invite links, device-approval pages
and the OIDC redirect URI on http://localhost:8765. The variable overrides
the configuration file and -url overrides it. The deployment values set it
to https://keeporg.tiredsysadmin.cc.
Also document every environment variable the server reads, and the
standard proxy and CA variables it honours for OIDC.
Server version 0.8.0.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>