feat(pwa): add Progressive Web App support — installable to homescreen
- vite-plugin-pwa with generateSW strategy (Workbox)
- manifest.webmanifest: name, short_name, display standalone, theme_color #e8a820
- Service worker: precaches JS/CSS/HTML shell; API routes network-first (60s);
Google Fonts cache-first (1 year)
- Icons: 192 + 512px regular + maskable variants generated from App.vue bird SVG
- index.html: theme-color meta, apple-touch-icon, apple-mobile-web-app-* tags
for iOS Safari homescreen support (iOS ignores the manifest icons array)
- autoUpdate mode: new versions install silently and activate on next navigation
pyr0ball
7e0722cc23
