Initial commit: Schedule Planner

sw.js

@@ -0,0 +1,27 @@
+// Service Worker for Hera's Planner — 后台提醒通知
+self.addEventListener('install', () => self.skipWaiting());
+self.addEventListener('activate', () => self.clients.claim());
+
+// 接收主页面发来的通知请求
+self.addEventListener('message', event => {
+  if (event.data && event.data.type === 'SHOW_NOTIFICATION') {
+    self.registration.showNotification(event.data.title, {
+      body: event.data.body,
+      icon: 'icon-180.png',
+      badge: 'icon-180.png',
+      requireInteraction: true,
+      tag: event.data.tag || 'planner-reminder',
+    });
+  }
+});
+
+// 点击通知时打开页面
+self.addEventListener('notificationclick', event => {
+  event.notification.close();
+  event.waitUntil(
+    self.clients.matchAll({ type: 'window' }).then(clients => {
+      if (clients.length > 0) { clients[0].focus(); }
+      else { self.clients.openWindow('/'); }
+    })
+  );
+});