refactor(Interfaces): move Interfaces to Common

EnvelopeGenerator.Application/Common/Interfaces/Services/IEnvelopeSmsHandler.cs

@@ -0,0 +1,26 @@
+using EnvelopeGenerator.Application.Common.Dto.EnvelopeReceiver;
+using EnvelopeGenerator.Application.Common.Dto.Messaging;
+
+namespace EnvelopeGenerator.Application.Common.Interfaces.Services;
+
+/// <summary>
+/// 
+/// </summary>
+public interface IEnvelopeSmsHandler
+{
+    /// <summary>
+    /// If expiration is passed then, sends sms and returns smsResponse and up-to-date expiration; otherwise send expiration.
+    /// </summary>
+    /// <param name="er_secret"></param>
+    /// <param name="cToken"></param>
+    /// <returns></returns>
+    Task<(SmsResponse? SmsResponse, DateTime Expiration)> SendTotpAsync(EnvelopeReceiverSecretDto er_secret, CancellationToken cToken = default);
+
+    /// <summary>
+    /// 
+    /// </summary>
+    /// <param name="totpCode"></param>
+    /// <param name="secretKey"></param>
+    /// <returns></returns>
+    bool VerifyTotp(string totpCode, string secretKey);
+}