Approach 1: /etc/ttyd-user-map as source of truth; per-user t3-serve@.service
template (User=%i enforces file permissions); devvm reconcile; devvm
dispatch+auto-pair service (mints + injects the t3 session cookie on first
authenticated visit, replacing the in-cluster nginx). Spec for review before
writing the implementation plan.
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
