add shenyan-app RN project + PWA push/noise updates

PWA/public/sw-push.js

@@ -0,0 +1,26 @@
+self.addEventListener('push', function (event) {
+  var data = {};
+  try { data = event.data.json(); } catch (e) { data = { title: '沈晏', body: event.data ? event.data.text() : '' }; }
+  event.waitUntil(
+    self.registration.showNotification(data.title || '沈晏', {
+      body: data.body || '',
+      icon: '/icon-192.png',
+      badge: '/icon-192.png',
+      vibrate: [200, 100, 200],
+      tag: 'shenyan-push',
+      renotify: true,
+    })
+  );
+});
+
+self.addEventListener('notificationclick', function (event) {
+  event.notification.close();
+  event.waitUntil(
+    clients.matchAll({ type: 'window', includeUncontrolled: true }).then(function (list) {
+      for (var i = 0; i < list.length; i++) {
+        if (list[i].url && 'focus' in list[i]) return list[i].focus();
+      }
+      if (clients.openWindow) return clients.openWindow('/');
+    })
+  );
+});