- docker/android.Dockerfile: install nodejs (image ships Bun; ci-android-sign.sh
patches build.gradle with a Node script).
- buffer polyfill: whisper.rn -> safe-buffer requires Node's `buffer`, absent in
Metro/RN. Add `buffer` dep, alias it in metro.config.js, set the global in
_layout. Web export unaffected (verified).
Validated locally end-to-end: assembleRelease BUILD SUCCESSFUL, 117MB APK across
all 4 ABIs with librnwhisper.so, signed (CN=Wisp, O=briggen.dev).
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
