feat: 前端配置和组件更新

- App.vue, Sidebar.vue
- main.ts, router/index.ts
- package.json, vite.config.ts

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

web/vite.config.ts

@@ -1,9 +1,13 @@
 import { defineConfig } from 'vite'
 import vue from '@vitejs/plugin-vue'
 import { resolve } from 'path'
+import monacoEditorPlugin from 'vite-plugin-monaco-editor'
 
 export default defineConfig({
-  plugins: [vue()],
+  plugins: [
+    vue(),
+    (monacoEditorPlugin as any).default({})
+  ],
   resolve: {
     alias: {
       '@': resolve(__dirname, 'src')