Introduce scripts to collect Tauri build artifacts across platforms and
generate a pacman package for Arch Linux. Update .gitignore to exclude
the releases directory and reorder existing entries.
- Add multi-stage Dockerfile with pnpm install and Nginx serving
- Add nginx.conf with gzip and SPA fallback
- Add docker-build.sh script for building and pushing images
- Add .dockerignore for build context optimization
- Remove unused pnpm-workspace.yaml
- Remove external android-signing.gradle.kts, inline keystore config
into app/build.gradle.kts
- Update compileSdk and targetSdk to 36
- Fix version format in package.json (v0.1 → 0.1.0)