feat(pwa): app instalável com service worker e shell offline

- manifest.webmanifest: standalone, theme/background color, ícones 192/512
  any+maskable+monochrome (PNGs em web/icons) e atalho 'Nova nota' (?new=1)
- sw.js: cache versionado (notas-shell-v1); navegação network-first com
  fallback ao shell (offline), estáticos stale-while-revalidate, /api/* e
  SSE sempre passthrough; activate limpa caches e notifica janelas
- app.js: registro do SW, beforeinstallprompt com item 'Instalar Aplicativo…'
  no menu Ajuda (escondido em standalone/após instalar), toast de atualização,
  aviso offline/online, deep-link ?new=1
- index.html: meta tags theme-color/mobile-web-app/apple-touch-icon/manifest
- server: staticHandler com MIME application/manifest+json e
  Cache-Control no-cache para /sw.js; embed inclui manifest, sw e ícones
- README: seção PWA + orientação de serving (Go atual e equivalente Rust)
This commit is contained in:
lgcosta committed 2026-11-05 08:04:27 -03:00
1 parent 63fd024f68
commit 18d33ed141
12 files changed
+243 -3

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