feat: include data connections and SMTP in artifact deployment

src/ScadaLink.SiteRuntime/Actors/DeploymentManagerActor.cs

@@ -479,6 +479,27 @@ public class DeploymentManagerActor : ReceiveActor, IWithTimers
                     }
                 }
 
+                // Store data connection definitions (OPC UA endpoints, etc.)
+                if (command.DataConnections != null)
+                {
+                    foreach (var dc in command.DataConnections)
+                    {
+                        await _storage.StoreDataConnectionDefinitionAsync(
+                            dc.Name, dc.Protocol, dc.ConfigurationJson);
+                    }
+                }
+
+                // Store SMTP configurations
+                if (command.SmtpConfigurations != null)
+                {
+                    foreach (var smtp in command.SmtpConfigurations)
+                    {
+                        await _storage.StoreSmtpConfigurationAsync(
+                            smtp.Name, smtp.Server, smtp.Port, smtp.AuthMode,
+                            smtp.FromAddress, smtp.Username, smtp.Password, smtp.OAuthConfig);
+                    }
+                }
+
                 return new ArtifactDeploymentResponse(
                     command.DeploymentId, "", true, null, DateTimeOffset.UtcNow);
             }