Two follow-up fixes inside the same install-experience surface as
the previous commit:
1. **Removed `docker compose exec -T backend npm run migrate`** in
both install_docker and update_docker_installation. The backend
container's wait-for-db.sh already runs `npm run migrate:safe`
on startup; the script was racing it with a separate (and
non-safe) `npm run migrate`. That race is the most likely
actual mechanism behind #484's "relation 'photos' does not
exist" error on the second install attempt — partial schema
visible to one of the two parallel migrators. Replaced with a
bounded wait for the backend container to become healthy
(Docker healthcheck reports green only after wait-for-db.sh
finishes its migration pass).
2. **Added the missing frontend container** to the script-generated
compose. The script previously generated a postgres + redis +
backend stack with no frontend at all (backend on host port
3001), while the documented production install
(docker-compose.production.yml) ships postgres + redis +
backend + frontend (nginx /api proxy on host port 3000). That
shape divergence is half of issue B in #484 — script-installed
admins had no frontend container and were left wondering where
the UI lived. Aligning both compose files on the same shape
eliminates the divergence; the frontend uses curl in its
healthcheck (frontend/Dockerfile explicitly `apk add curl`)
unlike the backend.
The remaining piece of issue B — picking ONE canonical install
path (build-from-source script vs. prebuilt-image production
compose) and deprecating the other — is a deployment-strategy
call that deserves its own design pass. Both paths now produce
architecturally-equivalent stacks.