refactor(backend): 将ApiUser模型重命名为Admin并更新相关引用

backend/routes/users.js

@@ -4,7 +4,7 @@ const Joi = require('joi')
 const router = express.Router()
 
 // 引入数据库模型
-const { ApiUser } = require('../models')
+const { Admin } = require('../models')
 const sequelize = require('sequelize')
 
 /**
@@ -195,7 +195,7 @@ router.get('/', async (req, res) => {
     if (status) where.status = status
     
     // 分页查询
-    const result = await ApiUser.findAndCountAll({
+    const result = await Admin.findAndCountAll({
       where,
       limit: parseInt(pageSize),
       offset: (parseInt(page) - 1) * parseInt(pageSize),
@@ -260,7 +260,7 @@ router.get('/:id', async (req, res) => {
   try {
     const { id } = req.params
     
-    const user = await ApiUser.findByPk(id)
+    const user = await Admin.findByPk(id)
     
     if (!user) {
       return res.status(404).json({
@@ -332,7 +332,7 @@ router.post('/', async (req, res) => {
     const { username, email, phone, password, user_type, status } = value
     
     // 检查用户名、邮箱是否已存在
-    const existingUser = await ApiUser.findOne({
+    const existingUser = await Admin.findOne({
       where: {
         [sequelize.Op.or]: [
           { username },
@@ -352,7 +352,7 @@ router.post('/', async (req, res) => {
     const hashedPassword = await bcrypt.hash(password, 10)
     
     // 创建用户
-    const user = await ApiUser.create({
+    const user = await Admin.create({
       username,
       email,
       phone,
@@ -438,7 +438,7 @@ router.put('/:id', async (req, res) => {
     }
     
     // 查找用户
-    const user = await ApiUser.findByPk(id)
+    const user = await Admin.findByPk(id)
     
     if (!user) {
       return res.status(404).json({
@@ -503,7 +503,7 @@ router.delete('/:id', async (req, res) => {
   try {
     const { id } = req.params
     
-    const user = await ApiUser.findByPk(id)
+    const user = await Admin.findByPk(id)
     
     if (!user) {
       return res.status(404).json({