i18n front : facettes localisées + Web Push (SW push, abonnement, toggle profil)

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

app/service-worker/sw.ts

@@ -0,0 +1,46 @@
+/// <reference lib="webworker" />
+import { precacheAndRoute } from 'workbox-precaching'
+
+declare const self: ServiceWorkerGlobalScope & { __WB_MANIFEST: Array<{ url: string, revision: string | null }> }
+
+// Précache des assets de l'app (injecté au build).
+precacheAndRoute(self.__WB_MANIFEST)
+
+self.skipWaiting()
+self.addEventListener('activate', event => event.waitUntil(self.clients.claim()))
+
+// Réception d'un push : affiche la notification système (le contenu vient du back).
+self.addEventListener('push', (event: PushEvent) => {
+  let payload: { title?: string, body?: string, icon?: string, badge?: string, data?: { url?: string } } = {}
+  try {
+    payload = event.data?.json() ?? {}
+  } catch {
+    payload = { body: event.data?.text() }
+  }
+
+  const title = payload.title || 'StreakFit'
+  event.waitUntil(
+    self.registration.showNotification(title, {
+      body: payload.body,
+      icon: payload.icon || '/pwa-192.png',
+      badge: payload.badge || '/pwa-192.png',
+      data: payload.data || { url: '/' },
+      tag: 'streakfit-streak',
+      renotify: true
+    })
+  )
+})
+
+// Clic sur la notification : ouvre/focus l'app sur l'URL fournie.
+self.addEventListener('notificationclick', (event: NotificationEvent) => {
+  event.notification.close()
+  const url = (event.notification.data && event.notification.data.url) || '/'
+  event.waitUntil(
+    self.clients.matchAll({ type: 'window', includeUncontrolled: true }).then((clients) => {
+      for (const client of clients) {
+        if ('focus' in client) return client.focus()
+      }
+      return self.clients.openWindow(url)
+    })
+  )
+})