Docker image tags must start with a hostname — a `https://` prefix in
the REGISTRY_URL variable produced `invalid reference format`. Normalize
the value in a prep step (drop http/https scheme and trailing slash) so
the workflow works whether the variable is set as a URL or a bare host.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Replaces the Jenkinsfile with a .gitea/workflows/build-push.yml that
builds on pushes to main and pushes `latest` + `sha-<short>` tags to the
Gitea package registry using the REGISTRY_URL variable and
REGISTRY_TOKEN secret. Adds a docker-compose.yml that pulls the
published image for deployment.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
josh