Builds and pushes the backend container image to the Gitea registry on git.jpaul.io on push to main and version tags, so servers pull to deploy (no build on the host). Registry credentials come from repo secrets (REGISTRY_USERNAME/REGISTRY_PASSWORD); runner label may need adjusting to the configured Gitea runner.
Co-Authored-By: Claude Opus 4.8 (1M context) <[email protected]>
Signed-off-by: Justin Paul <[email protected]>
