public async Task<IActionResult> Register(RegisterDto register)
{
    //return new JsonResult(new { status = "0" });
    if (register == null)
    {
        return BadRequest("檢查輸入資料");
    }
    var result = await _registerService.Register(register);
    return result;
}

public class RegisterDto
{
    [EmailAddress]
    [MaxLength(100)]
    public string? Email { get; set; }

    [MaxLength(100)]
    public string? Password { get; set; }
}