update

src/main/java/com/qmth/ops/biz/ai/client/aliyun/qwen_ocr/QwenOcrClient.java

@@ -46,6 +46,9 @@ public class QwenOcrClient extends OcrApiClient {
         content1.put("type", "image_url");
         Map<String, String> urlBase64 = new HashMap<>();
         String base64 = CodecUtils.toBase64(image);//默认：图片大小不超过10MB。
+        if (imageType == null) {
+            imageType = ImageType.JPG;
+        }
         urlBase64.put("url", imageType.getBase64Prefix() + base64);
         content1.put("image_url", urlBase64);
         content1.put("min_pixels", 3136);//最小值：3136