- Added `.github/workflows/release.yml` for multi-platform Docker builds. - Configured triggers for `main` branch pushes and `v*` tags. - Uses `docker/metadata-action` for tagging: - `latest` is only updated on semantic version tags (e.g., `v1.0.0`). - `main` branch pushes are tagged with `main` and commit SHA. - Supports `linux/amd64` and `linux/arm64`. - Requires `DOCKERHUB_USERNAME` and `DOCKERHUB_TOKEN` secrets.