Merge pull request #35 from neuroglia-io/spec-v0.2.2-update

Upgraded solution to the A2A Protocol Specification `v0.2.2`

Author: cdavernas

.editorconfig

@@ -99,5 +99,5 @@ csharp_style_deconstructed_variable_declaration = true:suggestion
 csharp_style_unused_value_assignment_preference = discard_variable:suggestion
 csharp_style_unused_value_expression_statement_preference = discard_variable:silent
 
-file_header_template = Copyright � 2025-Present the a2a-net Authors\n\nLicensed under the Apache License, Version 2.0 (the "License"),\nyou may not use this file except in compliance with the License.\nYou may obtain a copy of the License at\nhttp://www.apache.org/licenses/LICENSE-2.0\n\nUnless required by applicable law or agreed to in writing, software\ndistributed under the License is distributed on an "AS IS" BASIS,\nWITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\nSee the License for the specific language governing permissions and\nlimitations under the License.
+file_header_template = Copyright © 2025-Present the a2a-net Authors\n\nLicensed under the Apache License, Version 2.0 (the "License"),\nyou may not use this file except in compliance with the License.\nYou may obtain a copy of the License at\nhttp://www.apache.org/licenses/LICENSE-2.0\n\nUnless required by applicable law or agreed to in writing, software\ndistributed under the License is distributed on an "AS IS" BASIS,\nWITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\nSee the License for the specific language governing permissions and\nlimitations under the License.
 csharp_style_prefer_primary_constructors = true:suggestion

samples/semantic-kernel/a2a-net.Samples.SemanticKernel.Client/Configuration/ApplicationOptions.cs

@@ -1,4 +1,4 @@
-// Copyright � 2025-Present the a2a-net Authors
+// Copyright © 2025-Present the a2a-net Authors
 //
 // Licensed under the Apache License, Version 2.0 (the "License"),
 // you may not use this file except in compliance with the License.
@@ -19,13 +19,13 @@ namespace A2A.Samples.SemanticKernel.Client.Configuration
     public class ApplicationOptions
     {
         /// <summary>
-        /// Gets/sets the URI of the A2A server to interact with
+        /// Gets or sets the URI of the A2A server to interact with
         /// </summary>
         [Required]
         public Uri? Server { get; set; } = null;
 
         /// <summary>
-        /// Gets/sets the URI, if any, of the endpoint to send push notifications to
+        /// Gets or sets the URI, if any, of the endpoint to send push notifications to
         /// </summary>
         public Uri? PushNotificationClient { get; set; }
 

samples/semantic-kernel/a2a-net.Samples.SemanticKernel.Client/MessageExtensions.cs

@@ -1,4 +1,4 @@
-// Copyright � 2025-Present the a2a-net Authors
+// Copyright © 2025-Present the a2a-net Authors
 //
 // Licensed under the Apache License, Version 2.0 (the "License"),
 // you may not use this file except in compliance with the License.

samples/semantic-kernel/a2a-net.Samples.SemanticKernel.Client/PartExtensions.cs

@@ -1,4 +1,4 @@
-// Copyright � 2025-Present the a2a-net Authors
+// Copyright © 2025-Present the a2a-net Authors
 //
 // Licensed under the Apache License, Version 2.0 (the "License"),
 // you may not use this file except in compliance with the License.
@@ -50,7 +50,7 @@ public static string ToText(this Part part)
                 jsonContentBuilder.AppendLine("```");
                 return jsonContentBuilder.ToString();
             default:
-                throw new NotSupportedException($"The specified part type '{part.Type ?? "None"}' is not supported");
+                throw new NotSupportedException($"The specified part type '{part.Kind ?? "None"}' is not supported");
         }
     }