- Dockerfile: python:3.14-slim, the Python CI tests on (was 3.13). tini from apt is PID 1 (ENTRYPOINT tini -- entrypoint.sh): it reaps the zombies ssh and ansible leave and forwards SIGTERM. - cli: Hypercorn's serve() with one worker (run, stream and scheduler state is in-process), a 10 s graceful timeout, and SIGTERM/SIGINT as the shutdown trigger. Access and error lines go through Steward's logging. --debug keeps Quart's reloading dev server. - Logging: steward/core/logging_setup.py installs one root handler before anything logs (until now a library's basicConfig on import was the only configuration). Its level is the `log.level` setting (DEBUG/INFO/WARNING/ ERROR, default INFO), applied at boot and on save in Settings → General. - CI publish: build, then "The image boots with no internet" (rule 164, snippet #3552), then push, so a broken image never reaches a tag (rule 177). On an --internal network with its own Postgres, the image must migrate and answer /health, run tini as PID 1, serve first-run setup with its assets from /static and no third-party host, and exit 0 on SIGTERM. Logs and clean-up run always. Tests: tests/core/test_logging_setup.py; the smoke step itself. Not in this commit: the dependency lockfile (it conflicts with rule 154 and is waiting on the operator). Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>