修复：设置默认截图回调URL，解决Edge回调WVP问题

src/main/java/com/genersoft/iot/vmp/aiot/service/impl/AiScreenshotServiceImpl.java

@@ -58,7 +58,7 @@ public class AiScreenshotServiceImpl implements IAiScreenshotService {
     @Autowired
     private CosUtil cosUtil;
 
-    @Value("${ai.screenshot.callback-url:}")
+    @Value("${ai.screenshot.callback-url:http://124.222.218.198:18080}")
     private String callbackUrl;
 
     @Override