- Add pipeline/manifest.py for packages.txt parsing
- Implement real numpy cross-compilation (rebuild.py) with OHOS NDK + vendored meson
- Extend CLI with --manifest, --build-from-source, --stage-integration modes
- Add recipes/, experiments/, and scripts/ for integration staging and artifact upload
- Update CI workflow with manifest validation, artifact upload, and release publishing
- Update Makefile and README with new targets and documentation