优化三重一大生成逻辑

src/main/java/com/gxwebsoft/ai/controller/AiCloudFileController.java

@@ -138,6 +138,10 @@ public class AiCloudFileController extends BaseController {
             if (files == null || files.length == 0) {
                 return fail("请选择要上传的文件");
             }
+
+            if (files.length > 10) {
+                return fail("一次最多只能上传10个文件");
+            }
             
             User loginUser = getLoginUser();