feat: change theme for mobile site is ready

api/handler/chatimpl/chat_handler.go

@@ -139,6 +139,7 @@ func (h *ChatHandler) ChatHandle(c *gin.Context) {
 			if err != nil {
 				client.Close()
 				h.App.ChatClients.Delete(sessionId)
+				h.App.ChatSession.Delete(sessionId)
 				cancelFunc := h.App.ReqCancelFunc.Get(sessionId)
 				if cancelFunc != nil {
 					cancelFunc()

api/handler/chatimpl/openai_handler.go

@@ -115,11 +115,8 @@ func (h *ChatHandler) sendOpenAiMessage(
 				break
 			}
 
-			// 初始化 role
-			if responseBody.Choices[0].Delta.Role != "" && message.Role == "" {
-				message.Role = responseBody.Choices[0].Delta.Role
-				continue
-			} else if responseBody.Choices[0].FinishReason != "" {
+			// output stopped
+			if responseBody.Choices[0].FinishReason != "" {
 				break // 输出完成或者输出中断了
 			} else {
 				content := responseBody.Choices[0].Delta.Content