POST `/auth/re-authenticate`

高风险操作前的重新认证，通过密码验证提升当前会话的安全级别返回step_up_token，有效期5分钟，可用于后续高安全操作的身份令牌传递

身份认证 `bearerAuth` application/json

Request Body

Schema: dto.ReAuthenticateRequest

Field	Type	Required	Example	Constraints	Description
`password`	`string`	Yes		length: 1–?	当前密码
`mfa_code`	`string`	No			MFA验证码

Status	Description	Schema
200	操作成功	`dto.ReAuthenticateDataWrapper`

Field	Type	Required	Example
`code`	`integer`	No	`0`
`data`	`dto.ReAuthenticateResponse`	No
`message`	`string`	No	`success`

重新认证成功响应

Field	Type	Required	Example	Description
`expires_in`	`integer`	No	`300`	有效期
`message`	`string`	No	`re-authentication successful`	结果消息
`step_up_token`	`string`	No	`stepup_abc...`	Step-up token