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/CustomTasks.Regions.cs

@@ -14,5 +14,17 @@ namespace FsToolbox.Cli
         private record AldiMember(RegionTasks.Store Store, StoreTasks.Member Member);
 
         #endregion
+
+        #region Record StoreLogProfileEntry
+
+        /// <summary>
+        ///     Aggregates store log information by profile and store.
+        /// </summary>
+        /// <param name="Profile">The foodsaver profile that performed the action.</param>
+        /// <param name="Store">The store for which the log entry applies.</param>
+        /// <param name="DateReference">The log entry date reference.</param>
+        private record StoreLogProfileEntry(StoreTasks.FoodsaverProfile Profile, RegionTasks.Store Store, DateTime? DateReference, DateTime? PerformedAt);
+
+        #endregion
     }
 }