Refactor EmailSenderWorker configuration handling

Introduced a dedicated `EmailSenderWorkerConfiguration` class to centralize and simplify configuration management for the `EmailSenderWorker`. Updated `Program.cs` to use this class for dependency injection and removed the inline configuration logic from `EmailSenderWorker.cs`.

Simplified the worker's constructor by leveraging `IOptions<EmailSenderWorkerConfiguration>`. Removed the unused `MaxRetryCount` property from the configuration class and `appsettings.json`.

Cleaned up `using` directives in `Program.cs` and `EmailSenderWorker.cs` to include the new namespace and remove redundant imports. These changes improve maintainability and align with best practices.

src/DigitalData.EmailProfiler.API/Configurations/EmailSenderWorkerConfiguration.cs

@@ -0,0 +1,11 @@
+namespace DigitalData.EmailProfiler.API.Configurations;
+
+/// <summary>
+/// Configuration for EmailSenderWorker
+/// </summary>
+public class EmailSenderWorkerConfiguration
+{
+    public const string SectionName = "Workers:EmailSender";
+
+    public bool Enabled { get; set; } = true;
+}

src/DigitalData.EmailProfiler.API/Program.cs

@@ -1,4 +1,4 @@
-using DigitalData.EmailProfiler.API;
+using DigitalData.EmailProfiler.API.Configurations;
 using DigitalData.EmailProfiler.API.Middleware;
 using DigitalData.EmailProfiler.API.Workers;
 using DigitalData.EmailProfiler.Application;
@@ -44,8 +44,7 @@ try
     builder.Services.AddInfrastructure(builder.Configuration);
 
     // Register EmailSenderWorker configuration
-    builder.Services.Configure<EmailSenderWorkerConfiguration>(
+    builder.Services.Configure<EmailSenderWorkerConfiguration>(builder.Configuration.GetSection(EmailSenderWorkerConfiguration.SectionName));
-        builder.Configuration.GetSection(EmailSenderWorkerConfiguration.SectionName));
 
     // Register EmailAccount configuration (IOptions<EmailAccountDto>)
     builder.Services.Configure<EmailAccountDto>(

src/DigitalData.EmailProfiler.API/Workers/EmailSenderWorker.cs

@@ -1,6 +1,8 @@
+using DigitalData.EmailProfiler.API.Configurations;
 using DigitalData.EmailProfiler.Application.Common.Events;
 using DigitalData.EmailProfiler.Application.Common.Interfaces;
 using DigitalData.EmailProfiler.Application.EmailSending.Commands;
+using Microsoft.Extensions.Options;
 
 namespace DigitalData.EmailProfiler.API.Workers;
 
@@ -13,11 +15,9 @@ public class EmailSenderWorker(
     IEmailQueue EmailQueue,
     IEmailService EmailService,
     ILogger<EmailSenderWorker> Logger,
-    IConfiguration configuration) : BackgroundService
+    IOptions<EmailSenderWorkerConfiguration> configuration) : BackgroundService
 {
-    private readonly EmailSenderWorkerConfiguration _config = 
+    private readonly EmailSenderWorkerConfiguration _config = configuration.Value;
-        configuration.GetSection(EmailSenderWorkerConfiguration.SectionName)
-            .Get<EmailSenderWorkerConfiguration>() ?? new EmailSenderWorkerConfiguration();
 
     protected override async Task ExecuteAsync(CancellationToken stoppingToken)
     {
@@ -80,20 +80,4 @@ public class EmailSenderWorker(
             throw;
         }
     }
-}
+}
-
-/// <summary>
-/// Configuration for EmailSenderWorker
-/// </summary>
-public class EmailSenderWorkerConfiguration
-{
-    public const string SectionName = "Workers:EmailSender";
-
-    public bool Enabled { get; set; } = true;
-
-    /// <summary>
-    /// Maximum retry attempts before moving to Dead Letter Queue
-    /// NOTE: Currently NOT used - all failed emails move directly to DLQ without retry
-    /// </summary>
-    public int MaxRetryCount { get; set; } = 3;
-}

src/DigitalData.EmailProfiler.API/appsettings.json

@@ -13,8 +13,7 @@
   "AllowedHosts": "*",
   "Workers": {
     "EmailSender": {
-      "Enabled": true,
+      "Enabled": true
-      "MaxRetryCount": 3
     }
   },
   "LuckyPennySoftLicenseKey": "eyJhbGciOiJSUzI1NiIsImtpZCI6Ikx1Y2t5UGVubnlTb2Z0d2FyZUxpY2Vuc2VLZXkvYmJiMTNhY2I1OTkwNGQ4OWI0Y2IxYzg1ZjA4OGNjZjkiLCJ0eXAiOiJKV1QifQ.eyJpc3MiOiJodHRwczovL2x1Y2t5cGVubnlzb2Z0d2FyZS5jb20iLCJhdWQiOiJMdWNreVBlbm55U29mdHdhcmUiLCJleHAiOiIxODE2MTI4MDAwIiwiaWF0IjoiMTc4NDYyNDU1NyIsImFjY291bnRfaWQiOiIwMTk4M2M1OWU0YjM3MjhlYmZkMzEwM2MyYTQ4NmU4NSIsImN1c3RvbWVyX2lkIjoiMDE5ODNjNTllNGIzNzI4ZWJmZDMxMDNjMmE0ODZlODUiLCJzdWJfaWQiOiItIiwiZWRpdGlvbiI6IjAiLCJ0eXBlIjoiMiJ9.IUUO926m9crYGYxMjjKD_n9BnUm-EDyjFIn0YmMUCo7C-QTwvB8WhXP8veTSFsBq-leIIDJ4jyl7Pgc_7ciwg1XhUSIs4mkQroEUaSFCGOxw7Pi41WM8MK5YFSaqLTYYXec9zxgiJbGzABbh3CHTSup3okGnVm_CMoPEs91l2c0A6N1JyZy74urd_tF0KGVKf0MOvzdlQIWLQ8o73S4pTv2N-F6UlzI0fdMtTHMLNNQyr0NdWdnuBk_jMBXO-gy5RE_oCRfMTTYRX2n3XLK6pTfXE0Ct338o9F5sH8Ph2lTXSu56cpdsfZOQZGqCH0LoFp1Dd7RJgIgNmBiTGfvDnA"