chore: import upstream snapshot with attribution

dotnet/samples/Demos/AgentFrameworkWithAspire/ChatWithAgent.Configuration/AzureAISearchConfig.cs

@@ -0,0 +1,19 @@
+// Copyright (c) Microsoft. All rights reserved.
+
+namespace ChatWithAgent.Configuration;
+
+/// <summary>
+/// Azure AI Search service settings.
+/// </summary>
+public sealed class AzureAISearchConfig
+{
+    /// <summary>
+    /// Configuration section name.
+    /// </summary>
+    public const string ConfigSectionName = "AzureAISearch";
+
+    /// <summary>
+    /// The name of the connection string of Azure AI Search service.
+    /// </summary>
+    public const string ConnectionStringName = "AzureAISearch";
+}