feat: 更新依赖版本，添加 cnb-board 环境检查功能

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

@@ -0,0 +1 @@
+export * from './is-cnb.ts';

assistant/src/routes/cnb-board/modules/is-cnb.ts

@@ -0,0 +1,6 @@
+import { useKey } from "@kevisual/context";
+
+export const isCnb = () => {
+  const CNB = useKey('CNB');
+  return !!CNB;
+}