- Reclassify SQL migration, certbot, dialer, and release-update commands as extra/manual operations
- Keep the main install path focused on classic up.sh workflow without optional maintenance steps
- Update README section 2 to state DNS A/AAAA record alignment while editing .env
- Reduce setup ambiguity by tying domain host values and DNS changes to the same step
- Install docker.io only; add compose plugin from apt or GitHub release
- Fail clearly if docker compose is still missing after install
- README notes Compose v2 fallback on Debian