feat:add Web Push notification system

src/service-worker.ts

@@ -222,3 +222,52 @@ self.addEventListener('fetch', (event) => {
 
 	event.respondWith(respond());
 });
+
+// Handle push notifications
+self.addEventListener('push', (event) => {
+	if (!event.data) {
+		return;
+	}
+
+	const data = event.data.json();
+	const title = data.title || 'Serengo';
+	const options = {
+		body: data.body || '',
+		icon: data.icon || '/logo.svg',
+		badge: data.badge || '/logo.svg',
+		tag: data.tag || 'default',
+		data: data.data || {},
+		requireInteraction: false,
+		vibrate: [200, 100, 200]
+	};
+
+	event.waitUntil(self.registration.showNotification(title, options));
+});
+
+// Handle notification clicks
+self.addEventListener('notificationclick', (event) => {
+	event.notification.close();
+
+	const urlToOpen = event.notification.data?.url || '/';
+
+	event.waitUntil(
+		self.clients
+			.matchAll({
+				type: 'window',
+				includeUncontrolled: true
+			})
+			.then((clientList) => {
+				// Check if there's already a window open
+				for (const client of clientList) {
+					if (client.url === urlToOpen && 'focus' in client) {
+						return client.focus();
+					}
+				}
+
+				// Otherwise, open a new window
+				if (self.clients.openWindow) {
+					return self.clients.openWindow(urlToOpen);
+				}
+			})
+	);
+});