v0.7.0

Built by GitHub Actions from the tagged commit. The workflow that produced this
APK is public, so you can verify it against the source rather than taking anyone's
word for it.

Install: see the install page or sideload the APK directly.

Signing: yes. A build signed with the debug key
is installable and safe to test, but cannot be upgraded in place once the project
moves to a real keystore — see docs/RELEASING.md.

Full Changelog: v0.6.0...v0.7.0