using Fitness_core_BE.Models.IOs; namespace Fitness_core_BE.Interfaces.Services { /// Outbound notification channels (SMS + email) — mirrors Core-Hex-Auth's ThirdPartyService. public interface IThirdPartyService { Task SendSmsAsync(string mobileNumber, string? otpCode = null, string? message = null); Task SendEmailAsync(string toEmail, string subject, string htmlBody, byte[]? attachment = null, string? attachmentName = null); } }