Requires updated repo secrets KEYSTORE_B64, KEYSTORE_PASSWORD, KEY_PASSWORD.
Until they are set, CI release builds fail instead of shipping an APK signed
with the old key that Obtainium would reject.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01YE5FmDZmFnWxH6RXCZLcjj
