feat: 更新依赖版本，添加 cnb-board 环境检查功能

assistant/src/routes/cnb-board/index.ts

@@ -3,6 +3,20 @@ import { getLiveMdContent } from './live/live-content.ts';
 import './cnb-dev-env.ts';
 import z from 'zod';
 import { execCommand } from '@/module/npm-install.ts';
+import { useKey } from '@kevisual/context';
+
+app.route({
+  path: 'cnb-board',
+  key: 'is-cnb-board',
+  description: '检查是否是 cnb-board 环境',
+  middleware: ['auth-admin']
+}).define(async (ctx) => {
+  const isCNB = useKey('CNB');
+  ctx.body = {
+    isCNB: !!isCNB,
+  };
+}).addTo(app);
+
 app.route({
   path: 'cnb-board',
   key: 'live',