refactor(ReadHistoryQuery): update to not throw exception.

- update controller to throw NotFound if the list is empty

EnvelopeGenerator.GeneratorAPI/Controllers/HistoryController.cs

@@ -5,6 +5,8 @@ using Microsoft.AspNetCore.Mvc;
 using Microsoft.Extensions.Caching.Memory;
 using static EnvelopeGenerator.Domain.Constants;
 using EnvelopeGenerator.Application.Histories.Queries;
+using DigitalData.Core.Client;
+using EnvelopeGenerator.Application.Extensions;
 
 namespace EnvelopeGenerator.GeneratorAPI.Controllers;
 
@@ -107,8 +109,7 @@ public class HistoryController : ControllerBase
     [Authorize]
     public async Task<IActionResult> GetAllAsync([FromQuery] ReadHistoryQuery historyQuery)
     {
-        var history = await _mediator.Send(historyQuery);
-
+        var history = await _mediator.Send(historyQuery).ThrowIfEmpty(Exceptions.NotFound);
         return Ok((historyQuery.OnlyLast ?? false) ? history.MaxBy(h => h.AddedWhen) : history);
     }
 }