feat: complete stage 2 core refactor

src/main.tsx

@@ -7,6 +7,10 @@ import "./index.css";
 import "./lib/tauri-api";
 // 导入国际化配置
 import "./i18n";
+import { QueryClientProvider } from "@tanstack/react-query";
+import { ThemeProvider } from "@/components/theme-provider";
+import { queryClient } from "@/lib/query";
+import { Toaster } from "@/components/ui/sonner";
 
 // 根据平台添加 body class，便于平台特定样式
 try {
@@ -22,8 +26,13 @@ try {
 
 ReactDOM.createRoot(document.getElementById("root")!).render(
   <React.StrictMode>
-    <UpdateProvider>
-      <App />
-    </UpdateProvider>
+    <QueryClientProvider client={queryClient}>
+      <ThemeProvider defaultTheme="system" storageKey="cc-switch-theme">
+        <UpdateProvider>
+          <App />
+          <Toaster />
+        </UpdateProvider>
+      </ThemeProvider>
+    </QueryClientProvider>
   </React.StrictMode>,
 );