Fix serialization of Boolean activity input (elsa-workflows#4922)

* Improve InputJsonConverter handling and trimming suppression

A new switch case block has been added for better handling of different types of JsonValueKind in InputJsonConverter. Also, a suppression message for the IL2026 trimming warning has been included to prevent potential runtime issues caused by code trimming, although justifications for this suppression are still pending.

* Add UIHint to While activity's Condition input

The Condition input in the While activity in Elsa.Workflows.Core has been updated to also include a UIHint. This aims to improve user input by specifically defining it as a SingleLine type.

src/modules/Elsa.Workflows.Core/Activities/While.cs

@@ -5,6 +5,7 @@
 using Elsa.Workflows.Behaviors;
 using Elsa.Workflows.Contracts;
 using Elsa.Workflows.Models;
+using Elsa.Workflows.UIHints;
 using JetBrains.Annotations;
 
 namespace Elsa.Workflows.Activities;
@@ -69,7 +70,7 @@ public While(Func<bool> condition, IActivity? body = default, [CallerFilePath] s
  /// <summary>
  /// The condition to evaluate.
  /// </summary>
- [Input(AutoEvaluate = false)]
+ [Input(AutoEvaluate = false, UIHint = InputUIHints.SingleLine)]
  public Input<bool> Condition { get; set; } = new(false);
 
  /// <summary>

src/modules/Elsa.Workflows.Core/Serialization/Converters/InputJsonConverter.cs

@@ -1,3 +1,4 @@
+using System.Diagnostics.CodeAnalysis;
 using System.Text.Json;
 using System.Text.Json.Serialization;
 using Elsa.Expressions.Contracts;
@@ -24,6 +25,7 @@ public InputJsonConverter(IExpressionDescriptorRegistry expressionDescriptorRegi
  public override bool CanConvert(Type typeToConvert) => typeof(Input).IsAssignableFrom(typeToConvert);
 
  /// <inheritdoc />
+ [UnconditionalSuppressMessage("Trimming", "IL2026:Members annotated with 'RequiresUnreferencedCodeAttribute' require dynamic access otherwise can break functionality when trimming application code", Justification = "<Pending>")]
  public override Input<T> Read(ref Utf8JsonReader reader, Type typeToConvert, JsonSerializerOptions options)
  {
  if (!JsonDocument.TryParseValue(ref reader, out var doc))
@@ -42,11 +44,17 @@ public override Input<T> Read(ref Utf8JsonReader reader, Type typeToConvert, Jso
  var memoryBlockReference = expressionDescriptor?.MemoryBlockReferenceFactory();
  var memoryBlockReferenceType = memoryBlockReference?.GetType();
  var expressionValueElement = expressionElement.TryGetProperty("value", out var expressionElementValueValue) ? expressionElementValueValue : default;
- var expressionValue = expressionValueElement.ValueKind == JsonValueKind.String
- ? expressionValueElement.GetString()
- : expressionValueElement.ValueKind != JsonValueKind.Undefined && memoryBlockReferenceType != null
- ? expressionValueElement.Deserialize(memoryBlockReferenceType, options)!
- : default;
+
+ var expressionValue = expressionValueElement.ValueKind switch
+ {
+ JsonValueKind.String => expressionValueElement.GetString(),
+ JsonValueKind.False => false,
+ JsonValueKind.True => true,
+ JsonValueKind.Number => expressionValueElement.GetDouble(),
+ JsonValueKind.Undefined => default,
+ _ => memoryBlockReferenceType != null ? expressionValueElement.Deserialize(memoryBlockReferenceType, options)! : default
+ };
+
  var expression = new Expression(expressionTypeName, expressionValue);
 
  if (memoryBlockReference == null)