add hunyuan_ocr

tests/test_qwen3vl.rs

@@ -19,15 +19,15 @@ fn qwen3vl_generate() -> Result<()> {
                 "role": "user",
                 "content": [
                     {
-                        "type": "video",
-                        "video_url": 
+                        "type": "image",
+                        "image_url": 
                         {
-                            "url": "https://www.w3schools.com/html/movie.mp4"
+                            "url": "file://./assets/img/ocr_test1.png"
                         }
-                    },                          
+                    },             
                     {
                         "type": "text", 
-                        "text": "视频中发生了什么"
+                        "text": "请分析图片并提取所有可见文本内容，按从左到右、从上到下的布局，返回纯文本"
                     }
                 ]
             }