v0.0.10: Progressive Web App (PWA)
- Web manifest (standalone mode, theme, icon)
- Service worker: caches shell (HTML, WASM, icon) for offline
- SVG app icon (chat bubble with encryption indicator)
- iOS meta tags: apple-mobile-web-app-capable, status bar style
- Android: beforeinstallprompt → /install command
- Offline fallback: loads cached shell, shows reconnecting state
- Cache versioning with automatic old cache cleanup
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
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