refactor(yudao-module-llm): 调整模型服务日志输出顺序

- 将行数初始化移至循环开始前

yudao-module-llm/yudao-module-llm-biz/src/main/java/cn/iocoder/yudao/module/llm/service/http/ModelService.java

@@ -279,13 +279,13 @@ public class ModelService {
         try (InputStream inputStream = responseEntity.getContent();
              BufferedReader reader = new BufferedReader(new InputStreamReader(inputStream))) {
             String line;
+            int i = 0;
             while ((line = reader.readLine()) != null) {
                 if (StringUtils.isBlank(line)) {
                     continue;
                 }
 
                 log.info("接收到的响应行数据: {}", line);
-                int i = 0;
                 if (!"data: [DONE]".equals(line)) {
                     String jsonData = line.substring(line.indexOf("{"));
                     JSONObject jsonObject = JSON.parseObject(jsonData);