Previously, Phase 1 optimization restricted feature branch pushes to
linux/amd64 only for faster builds. This unintentionally prevented
arm64 images from being published to Docker Hub.
Changes:
- Feature branches now build for both linux/amd64 and linux/arm64
- PRs remain single-platform (amd64) for fast feedback
- Only PRs create artifacts (multi-platform manifests can't be loaded locally)
- Updated comments to reflect new platform behavior
Result: feature/beta-release will now publish both amd64 and arm64
images to Docker Hub on every push.
Closes: User report - arm64 missing from Docker Hub
57417d514c