The wget healthcheck always failed (exit 127, no wget in image) → container
unhealthy → Traefik refused to route it. Pre-existing, never caught because the
3.12.1 image pin didn't exist.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
All 51 docker-compose.yml: replaced hardcoded subdomain.${DOMAIN}
with ${SUBDOMAIN}.${DOMAIN} in Traefik labels, app env vars, and
comments.
All 51 .felhom.yml: added SUBDOMAIN deploy field (type: subdomain)
with default matching existing subdomain metadata value.
Works with felhom-controller v0.27.0 which validates and stores the
user-chosen subdomain in app.yaml. Existing deployed apps get
SUBDOMAIN auto-injected via InjectMissingFields() on next sync.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>