更新代码仓库相关功能，修改 API 参数，添加删除仓库功能，更新文档和测试用例

agent/app.ts

@@ -6,9 +6,8 @@ import { nanoid } from 'nanoid';
 
 export const config = useConfig()
 export const cnb = useContextKey<CNB>('cnb', () => {
-  const token = useKey('CNB_TOKEN') as string
+  const token = useKey('CNB_API_KEY') as string
   const cookie = useKey('CNB_COOKIE') as string
-
   return new CNB({ token: token, cookie: cookie });
 })
 export const appId = nanoid();