android-release now runs on main as well as dev and tags, and image-release
requires its success on every ref. :latest carries the stable APK built from
main's own commit instead of the newest release's, so a merged app change
reaches stable phones on the next pull. Releases stay as optional bookmarks
that attach the APK for download.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>