Serve the companion download as a plain .apk so a phone installs it
straight from the link/QR with no unzip step. Repoint the in-app
download URL, the ship + publish scripts, and the pre-push hook at
archipelago-companion.apk, and drop the legacy .apk.zip.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
5c43e12782
