新增账号，超管体系

backend/src/models/DashboardUser.js

@@ -0,0 +1,57 @@
+const { DataTypes } = require('sequelize');
+const sequelize = require('../config/database');
+
+const DashboardUser = sequelize.define('DashboardUser', {
+  id: {
+    type: DataTypes.INTEGER,
+    primaryKey: true,
+    autoIncrement: true,
+    comment: '主键',
+  },
+  username: {
+    type: DataTypes.STRING(64),
+    allowNull: false,
+    unique: true,
+    comment: '登录账号',
+  },
+  password_hash: {
+    type: DataTypes.STRING(255),
+    allowNull: false,
+    comment: '密码哈希（bcrypt）',
+  },
+  is_super_admin: {
+    type: DataTypes.TINYINT,
+    allowNull: false,
+    defaultValue: 0,
+    comment: '是否超级管理员：1=是',
+  },
+  status: {
+    type: DataTypes.TINYINT,
+    allowNull: false,
+    defaultValue: 1,
+    comment: '状态：1=启用，0=禁用',
+  },
+  last_login_at: {
+    type: DataTypes.DATE,
+    allowNull: true,
+    comment: '最近登录时间',
+  },
+  create_at: {
+    type: DataTypes.DATE,
+    allowNull: false,
+    defaultValue: DataTypes.NOW,
+    comment: '创建时间',
+  },
+  update_at: {
+    type: DataTypes.DATE,
+    allowNull: false,
+    defaultValue: DataTypes.NOW,
+    comment: '更新时间',
+  },
+}, {
+  tableName: 'dashboard_user',
+  comment: 'Dashboard 后台账号',
+});
+
+module.exports = DashboardUser;
+

backend/src/models/index.js

@@ -2,5 +2,6 @@ const Brand = require('./Brand');
 const Model = require('./Model');
 const Ota = require('./Ota');
 const ShareCodeLog = require('./ShareCodeLog');
+const DashboardUser = require('./DashboardUser');
 
-module.exports = { Brand, Model, Ota, ShareCodeLog };
+module.exports = { Brand, Model, Ota, ShareCodeLog, DashboardUser };