🎉 Initial commit: PiAgentUI — AI Agent Desktop & Web UI

A professional workspace for AI coding agents with:
- Real-time streaming chat with SSE
- Session management (fork, clone, tree navigation)
- MCP tools browser & metadata panel
- Skills browser (global, project, package sources)
- Voice input & STT provider configuration
- Integrated terminal & file explorer
- Model selector with capability metadata
- Keyboard-first UI with command palette
- 8 languages (en, pt-BR, es, ja, zh-CN, ar, bn, hi)
- Tauri 2 desktop app
- React 19 + TypeScript + Vite 8 + Tailwind CSS 4
- Pi Agent extension runtime

Originally forked from OpenCodeUI, now an independent project.
License: GPL-3.0-only

public/notification-sw.js

@@ -0,0 +1,39 @@
+// ============================================
+// Notification Service Worker
+// ============================================
+// 专门用于显示通知（Android Chrome 不支持 new Notification()）
+// 不做缓存、不拦截 fetch，只处理通知相关事件
+
+self.addEventListener('notificationclick', event => {
+  event.notification.close()
+
+  const data = event.notification.data
+  if (!data) return
+
+  // 构建跳转 URL
+  let url = '/'
+  if (data.sessionId) {
+    const dir = data.directory ? `?dir=${data.directory}` : ''
+    url = `/#/session/${data.sessionId}${dir}`
+  }
+
+  // 聚焦已有窗口或打开新窗口
+  event.waitUntil(
+    clients.matchAll({ type: 'window', includeUncontrolled: true }).then(windowClients => {
+      // 找到同源的已有窗口
+      for (const client of windowClients) {
+        if (client.url.startsWith(self.location.origin) && 'focus' in client) {
+          // 导航到目标 session
+          client.postMessage({
+            type: 'notification-click',
+            sessionId: data.sessionId,
+            directory: data.directory,
+          })
+          return client.focus()
+        }
+      }
+      // 没有已有窗口，打开新的
+      return clients.openWindow(url)
+    }),
+  )
+})