/**
 * @api {get} /users/:id 获取用户信息
 * @apiName GetUser
 * @apiGroup User
 *
 * @apiParam {Number} id 用户ID
 *
 * @apiSuccess {String} name 用户名
 * @apiSuccess {String} email 邮箱
 * @apiSuccess {String} address 地址
 * @apiSuccess {String} phone 电话号码
 *
 * @apiSuccessExample 成功响应示例:
 *     HTTP/1.1 200 OK
 *     {
 *         "name": "John Doe",
 *         "email": "johndoe@example.com",
 *         "address": "123 Main St",
 *         "phone": "555-1234"
 *     }
 */