refactor: Rename EmailPorifler to MessagingService

src/DigitalData.MessagingService.Infrastructure/Services/Background/AsyncInitWorker.cs

@@ -0,0 +1,32 @@
+using DigitalData.MessagingService.Application.Common.Interfaces;
+using DigitalData.MessagingService.Infrastructure.Queue;
+using Microsoft.Extensions.Hosting;
+using Microsoft.Extensions.Logging;
+
+namespace DigitalData.MessagingService.Infrastructure.Services.Background;
+
+/// <summary>
+/// A hosted background service responsible for initializing the outgoing email queue consumer.
+/// Leverages a push-based, event-driven RabbitMQ consumer to eliminate polling overhead.
+/// Email account configuration is resolved exclusively from application settings; no database access is performed.
+/// </summary>
+public class AsyncInitWorker(IOutgoingEmailQueue EmailQueue, ILogger<AsyncInitWorker> Logger) : BackgroundService
+{
+    protected override async Task ExecuteAsync(CancellationToken stoppingToken)
+    {
+        Logger.LogInformation("Outgoing email queue worker is starting. Initializing event-driven RabbitMQ consumer.");
+
+        try
+        {
+            // Initialize the RabbitMQ push-based consumer. This call is non-blocking;
+            // message processing is handled asynchronously via registered event callbacks.
+            if (EmailQueue is OutgoingEmailQueue outgoingEmailQueue)
+                await outgoingEmailQueue.InitAsync(stoppingToken);
+        }
+        catch (Exception ex)
+        {
+            Logger.LogError(ex, "A critical error occurred while initializing the outgoing email queue consumer. The worker cannot proceed.");
+            throw;
+        }
+    }
+}