feat: ai完成接入deepseek

Yi.Abp.Net8/module/ai-hub/Yi.Framework.AiHub.Domain/Extensions/ChatMessageExtensions.cs

@@ -0,0 +1,21 @@
+using System.Reflection;
+using OpenAI.Chat;
+
+namespace Yi.Framework.AiHub.Domain.Extensions;
+
+public static class ChatMessageExtensions
+{
+    public static string GetRoleAsString(this ChatMessage message)
+    {
+        var type = message.GetType();
+        var propertyInfo = type.GetProperty("Role", BindingFlags.NonPublic | BindingFlags.Instance);
+        
+        if (propertyInfo != null)
+        {
+            var value = propertyInfo.GetValue(message) as ChatMessageRole?;
+            return value.ToString().ToLower();
+        }
+        
+        return string.Empty;
+    }
+}