WallMode development build 5.1

Automated signed development APK from commit 4aef37c.

Download the APK under Assets and install it on Android 8.0 or newer. The SHA-256 checksum is included; source archives match this build's tag.

Unit tests, release lint, APK signature and alignment checks passed. This is not a stable release: extended physical-device and Home Assistant acceptance checks remain open. See RELEASING.md at this tag for the full outstanding checklist, including media provenance and backup rules.

The app version is set in app/build.gradle.kts and is not automatically increased. These pre-releases are for manual installation, not the in-app stable update channel.