- Check if local.properties exists before reading
- Fallback to FLUTTER_ROOT environment variable
- Add FLUTTER_ROOT to CI variables
- Set default Flutter path to /opt/flutter for CI
- Fixes: 'local.properties (No such file or directory)' error
- Use saas-linux-medium-amd64 tag for TorrentEngine build (4GB RAM, 2 cores)
- Update documentation with Instance Runner setup guide
- Add comparison table for different runner sizes
- Keep docker tag for other jobs as fallback
- Reduce Gradle RAM from 4GB to 2GB with optimizations
- Add GitLab CI/CD with separate jobs for TorrentEngine and APK
- Add GitHub Actions workflow as alternative
- Enable parallel builds and caching
- Configure automated artifact uploads
- Add comprehensive CI/CD documentation
