chore: import upstream snapshot with attribution

dotnet/samples/Demos/AgentFrameworkWithAspire/ChatWithAgent.ApiService/Config/ServiceConfig.cs

@@ -0,0 +1,28 @@
+// Copyright (c) Microsoft. All rights reserved.
+
+using ChatWithAgent.Configuration;
+using Microsoft.Extensions.Configuration;
+
+namespace ChatWithAgent.ApiService.Config;
+
+/// <summary>
+/// Service configuration.
+/// </summary>
+public sealed class ServiceConfig
+{
+    private readonly HostConfig _hostConfig;
+
+    /// <summary>
+    /// Initializes a new instance of the <see cref="ServiceConfig"/> class.
+    /// </summary>
+    /// <param name="configurationManager">The configuration manager.</param>
+    public ServiceConfig(ConfigurationManager configurationManager)
+    {
+        this._hostConfig = new HostConfig(configurationManager);
+    }
+
+    /// <summary>
+    /// Host configuration.
+    /// </summary>
+    public HostConfig Host => this._hostConfig;
+}