Add timezone support and auto-sync push subscriptions

- Install tzdata in Docker for proper Australia/Perth timezone handling
- Update VAPID email to standard placeholder
- Auto-sync browser push subscriptions to server on page load

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

Dockerfile

@@ -33,6 +33,8 @@ RUN npm run build
 FROM node:20-slim AS runner
 WORKDIR /app
 
+RUN apt-get update && apt-get install -y tzdata && rm -rf /var/lib/apt/lists/*
+
 ENV NODE_ENV=production
 ENV NEXT_TELEMETRY_DISABLED=1
 ENV TZ=Australia/Perth

docker-compose.yml

@@ -18,7 +18,7 @@ services:
       # Push notification VAPID keys
       - NEXT_PUBLIC_VAPID_PUBLIC_KEY=BEFs_VtoxY7SpNnd-ubz1ioliESlRI4sY6ny7Qp3rm7V1cm0gqyZX8TAHp4AaQ81yKC4LfWtJFQz_aHc25G-Tww
       - VAPID_PRIVATE_KEY=KgVQVO7XhfCklrJ3o9wowzK90AxI6Exg9pXPq76Qx4A
-      - VAPID_EMAIL=mailto:admin@nextstep.local
+      - VAPID_EMAIL=mailto:admin@example.com
     depends_on:
       db:
         condition: service_healthy

src/components/notifications/NotificationPermission.tsx

@@ -52,6 +52,18 @@ export function NotificationPermission({ workspaceId }: NotificationPermissionPr
         if (registration.pushManager) {
           const subscription = await registration.pushManager.getSubscription()
           setIsSubscribed(!!subscription)
+
+          // Auto-sync subscription to server to ensure it exists
+          if (subscription) {
+            fetch('/api/notifications/subscribe', {
+              method: 'POST',
+              headers: { 'Content-Type': 'application/json' },
+              body: JSON.stringify({
+                subscription: subscription.toJSON(),
+                workspaceId,
+              }),
+            }).catch(console.error)
+          }
         }
       } catch (err) {
         console.error('Failed to check subscription:', err)