KnowPRO.NET Bug fixes (#1774)

* AI Client not sending temperature
* Fixed bug in Lookup filtering

Author: umeshma

dotnet/typeagent/examples/knowProConsole/TestCommands.cs

@@ -407,7 +407,9 @@ private async Task AnswerAsync(ParseResult args)
         }
         if (namedArgs.Get<bool>("debug"))
         {
-            var searchResults = await conversation.SearchAsync(query);
+            LangSearchDebugContext? debugContext = new LangSearchDebugContext();
+            var searchResults = await conversation.SearchAsync(query, null, null, debugContext);
+            KnowProWriter.WriteLine(ConsoleColor.Green, debugContext.ToJson());
             foreach (var searchResult in searchResults)
             {
                 AnswerContext context = await AnswerContext.FromSearchResultAsync(conversation, searchResult);

dotnet/typeagent/src/aiclient/OpenAIChatModel.cs

@@ -58,7 +58,7 @@ CancellationToken cancellationToken
         var request = Create(prompt, format);
         if (translationSettings is not null)
         {
-            if (translationSettings.Temperature > 0)
+            if (translationSettings.Temperature >= 0)
             {
                 request.temperature = translationSettings.Temperature;
             }

dotnet/typeagent/src/knowpro/Lang/LangSearchDebugContext.cs

@@ -15,4 +15,9 @@ public class LangSearchDebugContext
 
     // Indicates per expression whether similarity fallback was used
     public List<bool>? UsedSimilarityFallback { get; set; }
+
+    public string ToJson()
+    {
+        return Serializer.ToJsonIndented(this);
+    }
 }

dotnet/typeagent/src/knowpro/Query/LookupExtensions.cs

@@ -45,7 +45,7 @@ internal static class LookupExtensions
             scoreBooster
         ).ConfigureAwait(false);
 
-        return filtered ?? scoredOrdinals;
+        return filtered;
     }
 
     public static async ValueTask<IList<ScoredSemanticRefOrdinal>?> FilterAsync(
@@ -81,8 +81,9 @@ internal static class LookupExtensions
                 scoredOrdinals[i] = scoreBooster(semanticRef, scoredOrdinal);
             }
         }
-        return filtered ?? scoredOrdinals;
-
+        return (filter is not null)
+            ? filtered
+            : scoredOrdinals;
     }
 
     public static ValueTask<IList<ScoredSemanticRefOrdinal>?> LookupTermAsync(