control-api was the only component deployable via a bare Dockerfile alone
(no entrypoint/template, no default mountable config), and there was no
compose file wiring the four services' network, healthcheck ordering, or
DB volume together. Adds a base docker-compose.yml plus dev (override,
auto-loaded) and prod overlays, split by Compose profiles matching the
real deployment topology (control-plane/dashboard/prober/validator), a
ready-to-copy mock config for control-api so `docker compose up` works
out of the box, and the repo's first .gitignore for the local env/config
copies developers create from the committed examples.
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01NeVbMVEiE7XQAkBd7HQgj6
