Initial commit: AutonetSellCar platform with deployment system

- Frontend: Next.js 14 with TypeScript
- Backend: FastAPI with SQLAlchemy
- Agent: Carmodoo sync agent
- Deployment: Docker Compose based staging/production setup
- Scripts: Automated deployment with rollback support

🤖 Generated with [Claude Code](https://claude.com/claude-code)

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

frontend/public/sw.js

@@ -0,0 +1,92 @@
+// Service Worker for Push Notifications
+
+self.addEventListener('install', (event) => {
+  console.log('Service Worker installing.');
+  self.skipWaiting();
+});
+
+self.addEventListener('activate', (event) => {
+  console.log('Service Worker activated.');
+  event.waitUntil(clients.claim());
+});
+
+self.addEventListener('push', (event) => {
+  console.log('Push notification received:', event);
+
+  let data = {
+    title: 'AutonetSellCar',
+    body: 'You have a new notification',
+    icon: '/icon-192.png',
+    badge: '/badge-72.png',
+    url: '/'
+  };
+
+  if (event.data) {
+    try {
+      const payload = event.data.json();
+      data = {
+        ...data,
+        ...payload
+      };
+    } catch (e) {
+      data.body = event.data.text();
+    }
+  }
+
+  const options = {
+    body: data.body,
+    icon: data.icon || '/icon-192.png',
+    badge: data.badge || '/badge-72.png',
+    vibrate: [100, 50, 100],
+    data: {
+      url: data.url || '/',
+      dateOfArrival: Date.now()
+    },
+    actions: [
+      {
+        action: 'open',
+        title: 'View'
+      },
+      {
+        action: 'close',
+        title: 'Close'
+      }
+    ]
+  };
+
+  event.waitUntil(
+    self.registration.showNotification(data.title, options)
+  );
+});
+
+self.addEventListener('notificationclick', (event) => {
+  console.log('Notification clicked:', event);
+
+  event.notification.close();
+
+  if (event.action === 'close') {
+    return;
+  }
+
+  const url = event.notification.data?.url || '/';
+
+  event.waitUntil(
+    clients.matchAll({ type: 'window', includeUncontrolled: true }).then((clientList) => {
+      // Check if there's already a window open
+      for (const client of clientList) {
+        if (client.url.includes(self.location.origin) && 'focus' in client) {
+          client.navigate(url);
+          return client.focus();
+        }
+      }
+      // Open a new window if none exists
+      if (clients.openWindow) {
+        return clients.openWindow(url);
+      }
+    })
+  );
+});
+
+self.addEventListener('notificationclose', (event) => {
+  console.log('Notification closed:', event);
+});