Refactor RabbitMqEmailQueue to OutgoingEmailQueue

Replaced `RabbitMqEmailQueue` with `OutgoingEmailQueue` in the
dependency injection container to reflect the updated class name.
Renamed the class `RabbitMqEmailQueue` to `OutgoingEmailQueue`
in `OutgoingEmailQueue.cs`, including updates to the constructor
and logger type. This refactor aligns the class name with its
purpose and improves clarity in the codebase.

src/DigitalData.EmailProfiler.Infrastructure/DependencyInjection.cs

@@ -31,7 +31,7 @@ public static class DependencyInjection
         services.AddSingleton<IEncryptionService, DataProtectionEncryptionService>();
 
         // --- Email Queue (RabbitMQ) ---
-        services.AddSingleton<IEmailQueue, RabbitMqEmailQueue>();
+        services.AddSingleton<IEmailQueue, OutgoingEmailQueue>();
 
         // --- RabbitMQ Configuration ---
         services.Configure<RabbitMqConfiguration>(

src/DigitalData.EmailProfiler.Infrastructure/Queue/OutgoingEmailQueue.cs

@@ -16,16 +16,16 @@ namespace DigitalData.EmailProfiler.Infrastructure.Queue;
 /// Provides message persistence, scalability, and reliability.
 /// Uses Lazy<T> initialization pattern to avoid blocking constructor.
 /// </summary>
-public class RabbitMqEmailQueue : IEmailQueue, IDisposable
+public class OutgoingEmailQueue : IEmailQueue, IDisposable
 {
-    private readonly ILogger<RabbitMqEmailQueue> _logger;
+    private readonly ILogger<OutgoingEmailQueue> _logger;
     private readonly RabbitMqConfiguration _config;
     private IConnection? _connection;
     private IChannel _channel;
     private readonly IEmailService _emailService;
     
 #pragma warning disable CS8618 // channel and connection are initialized in InitAsync, not in constructor
-    public RabbitMqEmailQueue(IOptions<RabbitMqConfiguration> config, ILogger<RabbitMqEmailQueue> logger, IEmailService emailService)
+    public OutgoingEmailQueue(IOptions<RabbitMqConfiguration> config, ILogger<OutgoingEmailQueue> logger, IEmailService emailService)
 #pragma warning restore CS8618
     {
         _logger = logger;