- Add .forgejo/workflows/docker-build.yml: builds API (production) and
nginx (nginx-frontend) images with plain docker build/push and pushes
to git.plexultra.com (native arm64 on the mac-mini runner)
- Remove .github/workflows/docker-build.yml (GHCR/GitHub-specific)
- Point docker-compose.deploy.yml images at git.plexultra.com registry
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>