feat(web): PWA — manifest, icone, meta iOS

- src/app/manifest.ts (Next 14 file convention) → /manifest.webmanifest
- public/icons/icon.svg + icon-maskable.svg (vettoriali, palette editoriale)
- scripts/generate-icons.mjs (sharp): genera icon-192/512.png,
  apple-touch-icon-180.png, icon-maskable-512.png, badge-72.png
- layout.tsx: viewport con themeColor light/dark, manifest link,
  appleWebApp meta (capable + title), icons (svg + png + apple touch)
- .eslintrc: ignora scripts Node out-of-project; lint-staged: .mjs format-only

Display standalone, lang it, theme #221d18 (ink) / bg #f6f0df (carta).
Sblocca "Installa app" su Chrome/Edge/Android e "Aggiungi alla Home" su
iOS Safari — quest'ultimo è pre-requisito per ricevere le push su iOS.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

apps/web/.eslintrc.cjs

@@ -5,5 +5,7 @@ module.exports = {
   ignorePatterns: [
     // Service worker servito al browser: out-of-project per il TS parser.
     'public/**/*.js',
+    // Script Node ESM: out-of-project per il TS parser.
+    'scripts/**/*.mjs',
   ],
 };

apps/web/package.json

@@ -35,13 +35,14 @@
   "devDependencies": {
     "@ketopath/eslint-config": "workspace:*",
     "@ketopath/tsconfig": "workspace:*",
+    "@playwright/test": "^1.45.3",
     "@types/node": "^20.12.7",
     "@types/react": "^18.3.3",
     "@types/react-dom": "^18.3.0",
     "autoprefixer": "^10.4.19",
     "eslint-config-next": "^14.2.5",
     "postcss": "^8.4.39",
-    "tailwindcss": "^3.4.4",
-    "@playwright/test": "^1.45.3"
+    "sharp": "^0.34.5",
+    "tailwindcss": "^3.4.4"
   }
 }

apps/web/public/icons/icon-maskable.svg

@@ -0,0 +1,8 @@
+<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 512 512" role="img" aria-label="KetoPath">
+  <!-- Maskable: full-bleed background, contenuto entro safe area centrale (≈ 80%). -->
+  <rect width="512" height="512" fill="#f6f0df"/>
+  <!-- Wordmark centrato; nessun filetto perché può essere mascherato. -->
+  <text x="256" y="320" font-family="'Fraunces', 'Cormorant Garamond', 'Times New Roman', serif" font-size="240" font-weight="500" fill="#221d18" text-anchor="middle" letter-spacing="-10">
+    KP<tspan fill="#9a3f29">.</tspan>
+  </text>
+</svg>

apps/web/public/icons/icon.svg

@@ -0,0 +1,16 @@
+<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 512 512" role="img" aria-label="KetoPath">
+  <!-- Sfondo cream coerente con la palette del masthead. -->
+  <rect width="512" height="512" fill="#f6f0df"/>
+  <!-- Filetto editoriale superiore. -->
+  <rect x="56" y="80" width="400" height="2" fill="#221d18"/>
+  <!-- Filetto editoriale inferiore. -->
+  <rect x="56" y="430" width="400" height="2" fill="#221d18"/>
+  <!-- Eyebrow monospaziato. -->
+  <text x="256" y="118" font-family="ui-monospace, 'JetBrains Mono', monospace" font-size="22" letter-spacing="6" fill="#221d18" text-anchor="middle" opacity="0.65">KETOPATH</text>
+  <!-- Wordmark KP — Fraunces-like serif fallback. -->
+  <text x="256" y="320" font-family="'Fraunces', 'Cormorant Garamond', 'Times New Roman', serif" font-size="280" font-weight="500" fill="#221d18" text-anchor="middle" letter-spacing="-12">
+    KP<tspan fill="#9a3f29">.</tspan>
+  </text>
+  <!-- Dicitura editoriale al piedi. -->
+  <text x="256" y="410" font-family="'Fraunces', serif" font-style="italic" font-size="28" fill="#3d3530" text-anchor="middle" opacity="0.7">una keto italiana</text>
+</svg>

apps/web/scripts/generate-icons.mjs

@@ -0,0 +1,28 @@
+// Genera i PNG dell'icona PWA a partire dalle SVG sorgente.
+// Eseguilo dopo aver modificato icon.svg / icon-maskable.svg.
+//
+//   pnpm --filter @ketopath/web exec node scripts/generate-icons.mjs
+
+import { readFile, writeFile } from 'node:fs/promises';
+import { fileURLToPath } from 'node:url';
+import path from 'node:path';
+import sharp from 'sharp';
+
+const here = path.dirname(fileURLToPath(import.meta.url));
+const PUBLIC_ICONS = path.join(here, '..', 'public', 'icons');
+
+const targets = [
+  { src: 'icon.svg', out: 'icon-192.png', size: 192 },
+  { src: 'icon.svg', out: 'icon-512.png', size: 512 },
+  { src: 'icon.svg', out: 'apple-touch-icon.png', size: 180 },
+  { src: 'icon-maskable.svg', out: 'icon-maskable-512.png', size: 512 },
+  { src: 'icon-maskable.svg', out: 'badge-72.png', size: 72 },
+];
+
+for (const t of targets) {
+  const svg = await readFile(path.join(PUBLIC_ICONS, t.src));
+  const png = await sharp(svg, { density: 384 }).resize(t.size, t.size).png().toBuffer();
+  await writeFile(path.join(PUBLIC_ICONS, t.out), png);
+  // eslint-disable-next-line no-console
+  console.info(`✓ ${t.out} (${t.size}×${t.size})`);
+}

apps/web/src/app/[locale]/layout.tsx

@@ -1,4 +1,4 @@
-import type { Metadata } from 'next';
+import type { Metadata, Viewport } from 'next';
 import { Fraunces, Inter_Tight, JetBrains_Mono } from 'next/font/google';
 import { notFound } from 'next/navigation';
 import { NextIntlClientProvider } from 'next-intl';
@@ -35,6 +35,16 @@ export function generateStaticParams() {
   return locales.map((locale) => ({ locale }));
 }
 
+export const viewport: Viewport = {
+  themeColor: [
+    { media: '(prefers-color-scheme: light)', color: '#f6f0df' },
+    { media: '(prefers-color-scheme: dark)', color: '#221d18' },
+  ],
+  width: 'device-width',
+  initialScale: 1,
+  // Su iOS standalone mode mantiene il colore della status bar coerente.
+};
+
 export async function generateMetadata({
   params: { locale },
 }: {
@@ -44,6 +54,21 @@ export async function generateMetadata({
   return {
     title: t('title'),
     description: t('description'),
+    manifest: '/manifest.webmanifest',
+    applicationName: 'KetoPath',
+    appleWebApp: {
+      capable: true,
+      title: 'KetoPath',
+      statusBarStyle: 'default',
+    },
+    icons: {
+      icon: [
+        { url: '/icons/icon.svg', type: 'image/svg+xml' },
+        { url: '/icons/icon-192.png', sizes: '192x192', type: 'image/png' },
+        { url: '/icons/icon-512.png', sizes: '512x512', type: 'image/png' },
+      ],
+      apple: [{ url: '/icons/apple-touch-icon.png', sizes: '180x180', type: 'image/png' }],
+    },
   };
 }
 

apps/web/src/app/manifest.ts

@@ -0,0 +1,48 @@
+// Web App Manifest (Next.js 14 file convention).
+// Servito a /manifest.webmanifest. PRD §5.6 — installabile su iOS/Android per
+// abilitare le notifiche push sui dispositivi mobili (vedi ADR 0003).
+
+import type { MetadataRoute } from 'next';
+
+export default function manifest(): MetadataRoute.Manifest {
+  return {
+    name: 'KetoPath — Una keto italiana',
+    short_name: 'KetoPath',
+    description:
+      'Chetogenica e digiuno intermittente personalizzati: piani settimanali, lista spesa, notifiche.',
+    lang: 'it',
+    start_url: '/',
+    scope: '/',
+    display: 'standalone',
+    orientation: 'portrait',
+    background_color: '#f6f0df',
+    theme_color: '#221d18',
+    categories: ['health', 'lifestyle', 'food'],
+    icons: [
+      {
+        src: '/icons/icon.svg',
+        sizes: 'any',
+        type: 'image/svg+xml',
+        purpose: 'any',
+      },
+      {
+        src: '/icons/icon-192.png',
+        sizes: '192x192',
+        type: 'image/png',
+        purpose: 'any',
+      },
+      {
+        src: '/icons/icon-512.png',
+        sizes: '512x512',
+        type: 'image/png',
+        purpose: 'any',
+      },
+      {
+        src: '/icons/icon-maskable-512.png',
+        sizes: '512x512',
+        type: 'image/png',
+        purpose: 'maskable',
+      },
+    ],
+  };
+}

package.json

@@ -47,11 +47,11 @@
     "@vitest/coverage-v8": "^1.6.0"
   },
   "lint-staged": {
-    "*.{ts,tsx,jsx,cjs,mjs}": [
+    "*.{ts,tsx,jsx,cjs}": [
       "eslint --fix --max-warnings=0",
       "prettier --write"
     ],
-    "*.js": [
+    "*.{js,mjs}": [
       "prettier --write"
     ],
     "*.{json,md,yml,yaml,css}": [