Add AnalyzeEarlySlotRegistrationsAsync method and update Program menu

Cli/Program.cs

@@ -19,6 +19,7 @@ logger.Info("Choose a task to execute:");
 logger.Info("1. Check Aldi Memberships");
 logger.Info("2. Confirm all Unconfirmed Pickups for Lindenberg");
 logger.Info("3. Analyze slot unregistrations for region Siegen");
+logger.Info("4. Analyze early slot registrations (calendar interval)");
 logger.Info("Enter the number of the task to execute (or any other key to exit): ");
 var choice = Console.ReadLine();   
 
@@ -33,6 +34,9 @@ switch (choice)
     case "3":
         await CustomTasks.AnalyzeSlotUnregistrationsAsync(httpClient);
         break;
+    case "4":
+        await CustomTasks.AnalyzeEarlySlotRegistrationsAsync(httpClient);
+        break;
     default:
         logger.Info("Exiting...");
         break;