refactor(ReadHistoryQuery): update to not throw exception.

- update controller to throw NotFound if the list is empty

EnvelopeGenerator.Application/Extensions/TaskExtensions.cs

@@ -33,7 +33,7 @@ public static class TaskExtensions
     /// <param name="factory">Exception provider</param>
     /// <returns>The awaited collection if it is not <c>null</c> or empty.</returns>
     /// <exception cref="NotFoundException">Thrown if the result is <c>null</c> or empty.</exception>
-    public static async Task<IEnumerable<T>> ThrowIfNull<T, TException>(this Task<IEnumerable<T>> task, Func<TException> factory) where TException : Exception
+    public static async Task<IEnumerable<T>> ThrowIfEmpty<T, TException>(this Task<IEnumerable<T>> task, Func<TException> factory) where TException : Exception
     {
         var result = await task;
         return result?.Any() ?? false ? result : throw factory();