chore: format code and fix bundle identifier for v3.0.0 release

- Format all TypeScript/React code with Prettier
- Format all Rust code with cargo fmt
- Fix bundle identifier from .app to .desktop to avoid macOS conflicts
- Prepare codebase for v3.0.0 Tauri release

src/main.tsx

@@ -1,24 +1,24 @@
-import React from 'react'
-import ReactDOM from 'react-dom/client'
-import App from './App'
-import './index.css'
+import React from "react";
+import ReactDOM from "react-dom/client";
+import App from "./App";
+import "./index.css";
 // 导入 Tauri API（自动绑定到 window.api）
-import './lib/tauri-api'
+import "./lib/tauri-api";
 
 // 根据平台添加 body class，便于平台特定样式
 try {
-  const ua = navigator.userAgent || ''
-  const plat = (navigator.platform || '').toLowerCase()
-  const isMac = /mac/i.test(ua) || plat.includes('mac')
+  const ua = navigator.userAgent || "";
+  const plat = (navigator.platform || "").toLowerCase();
+  const isMac = /mac/i.test(ua) || plat.includes("mac");
   if (isMac) {
-    document.body.classList.add('is-mac')
+    document.body.classList.add("is-mac");
   }
 } catch {
   // 忽略平台检测失败
 }
 
-ReactDOM.createRoot(document.getElementById('root')!).render(
+ReactDOM.createRoot(document.getElementById("root")!).render(
   <React.StrictMode>
     <App />
-  </React.StrictMode>
-)
+  </React.StrictMode>,
+);