chore: import upstream snapshot with attribution

dotnet/samples/Demos/ProcessWithCloudEvents/ProcessWithCloudEvents.Grpc/Options/OpenAIOptions.cs

@@ -0,0 +1,19 @@
+// Copyright (c) Microsoft. All rights reserved.
+
+using System.ComponentModel.DataAnnotations;
+
+namespace ProcessWithCloudEvents.Grpc.Options;
+
+/// <summary>
+/// Configuration for OpenAI chat completion service.
+/// </summary>
+public class OpenAIOptions
+{
+    public const string SectionName = "OpenAI";
+
+    [Required]
+    public string ChatModelId { get; set; } = string.Empty;
+
+    [Required]
+    public string ApiKey { get; set; } = string.Empty;
+}