feat: 完成api接口搭建

Yi.Abp.Net8/module/ai-hub/Yi.Framework.AiHub.Application.Contracts/Dtos/OpenAiDto/ChatCompletionsInput.cs

@@ -0,0 +1,21 @@
+namespace Yi.Framework.AiHub.Application.Contracts.Dtos.OpenAiDto;
+
+public class ChatCompletionsInput
+{
+    public List<OpenAiMessage> Messages { get; set; }
+
+    public bool Stream { get; set; }
+
+    public string? Prompt { get; set; }
+    public string Model { get; set; }
+
+    public decimal Temperature { get; set; }
+
+    public int max_tokens { get; set; }
+}
+
+public class OpenAiMessage
+{
+    public string Role { get; set; }
+    public string Content { get; set; }
+}