Add a web app manifest, icons, and a runtime-caching service worker so the
UI can be installed on Android Chrome (and added to the iOS home screen).
- web/public/manifest.webmanifest: standalone display, theme/bg colors, icon set
- web/public/icon.svg + generated icon-192/512 and apple-touch-icon PNGs
- web/public/sw.js: caches the static shell for offline launch; never touches
/api (HTTP or WS), so live-daemon behavior is unchanged
- index.html: link manifest + apple-touch-icon, iOS standalone metas
- main.ts: register the service worker (production only)
Assets land in web/dist via Vite's public/ dir and are embedded by the
existing include_dir! in maestro-web, so no Rust changes are needed.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
