feat(application): register AutoMapper mappings for new commands and add SendAndAppend to IImapEmailService

src/core/DigitalData.MessagingService.Application/Common/Interfaces/IImapEmailService.cs

@@ -37,5 +37,14 @@ public interface IImapEmailService
     /// <param name="folder"></param>
     /// <returns></returns>
     DateTime? GetLastImapSyncDate(int accountId, string folder = "INBOX");
+
+    /// <summary>
+    /// Sends an email via SMTP using the account credentials and appends the sent message
+    /// to the account's IMAP Sent Items folder.
+    /// </summary>
+    Task SendAndAppendAsync(
+        EmailContext context,
+        string sentFolder = "Sent",
+        CancellationToken cancellationToken = default);
 }
 #endif