Add store log analysis feature and related data structures

- Implement AnalyzeSlotUnregistrationsAsync method to retrieve and report store log data for cooperating stores in region 139.
- Introduce StoreLogProfileEntry record to aggregate log information.
- Add StoreLog endpoint for API access.
- Create GetStoreLogAsync and GetStoreLogEntriesAsync methods for fetching and deserializing store log entries.
- Update Program.cs to include the new analysis task option.

Cli/Program.cs

@@ -18,6 +18,7 @@ using var httpClient = new HttpClient();
 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("Enter the number of the task to execute (or any other key to exit): ");
 var choice = Console.ReadLine();   
 
@@ -29,6 +30,9 @@ switch (choice)
     case "2":
         await CustomTasks.ConfirmUnconfirmedPickupsLindenbergAsync(httpClient);
         break;
+    case "3":
+        await CustomTasks.AnalyzeSlotUnregistrationsAsync(httpClient);
+        break;
     default:
         logger.Info("Exiting...");
         break;