chore: import upstream snapshot with attribution

dotnet/samples/Demos/VectorStoreRAG/Options/QdrantConfig.cs

@@ -0,0 +1,22 @@
+// Copyright (c) Microsoft. All rights reserved.
+
+using System.ComponentModel.DataAnnotations;
+
+namespace VectorStoreRAG.Options;
+
+/// <summary>
+/// Qdrant service settings.
+/// </summary>
+internal sealed class QdrantConfig
+{
+    public const string ConfigSectionName = "Qdrant";
+
+    [Required]
+    public string Host { get; set; } = string.Empty;
+
+    public int Port { get; set; } = 6334;
+
+    public bool Https { get; set; } = false;
+
+    public string ApiKey { get; set; } = string.Empty;
+}