feat: support claude3 not stream

dto/text_response.go

@@ -61,3 +61,9 @@ type CompletionsStreamResponse struct {
 		FinishReason string `json:"finish_reason"`
 	} `json:"choices"`
 }
+
+type Usage struct {
+	PromptTokens     int `json:"prompt_tokens"`
+	CompletionTokens int `json:"completion_tokens"`
+	TotalTokens      int `json:"total_tokens"`
+}