Macro Handler block SDK — source distribution notice

The LICENSE file applies only to this first-party SDK tooling, schema, examples
and documentation. The Android application, runtime, native engines, private
assets and third-party content are not included or relicensed. No third-party
executable libraries are bundled. PUBLIC_PACKAGE_LICENSE.txt preserves the
existing license notice for official package descriptors and public docs.

API/format compatibility is documented from application interfaces. This SDK
is not the Android compiler, interpreter or a copy of the Android application.
No publication, Play approval, runtime verification or author authentication
is implied by the presence of these files. Validate imported packages in the app.
