bugfix：目录订阅收到更新事件时，sql字段update_time为空导致的报错

lishuyuan

2023-11-02 8bd2f47c9a92ffcf5ae43fae965eaefd4748e263

 web_src/build/webpack.base.conf.js

@@ -27,6 +27,7 @@
    alias: {
      'vue$': 'vue/dist/vue.esm.js',
      '@': resolve('src'),
      '@static': resolve('static'),
    }
  },
  module: {