fix(update): 修复华为上传URL响应格式 urlInfo 单对象处理

华为实际返回格式为 urlInfo (单对象) 而非 urlList (列表)，
代码需同时支持两种格式：
- urlList: 列表形式（旧版API）
- urlInfo: 单对象形式（当前API，含 url/objectId/headers/method）

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

update-service/src/main/java/com/xuqm/update/service/StoreSubmissionService.java

@@ -292,13 +292,23 @@ public class StoreSubmissionService {
         String hwAppId = huaweiGetAppId(clientId, token, packageName);
 
         // 3. Request upload URL
+        // Huawei returns either urlList (list) or urlInfo (single object)
         Map<String, Object> uploadUrlResp = huaweiGetUploadUrl(clientId, token, hwAppId, file);
+        Map<String, Object> urlInfo;
         List<Map<String, Object>> urlList = asMapList(uploadUrlResp.get("urlList"));
-        if (urlList.isEmpty()) urlList = asMapList(uploadUrlResp.get("data"));
+        if (!urlList.isEmpty()) {
+            urlInfo = urlList.get(0);
+        } else if (uploadUrlResp.containsKey("urlInfo") && uploadUrlResp.get("urlInfo") instanceof Map) {
+            @SuppressWarnings("unchecked")
+            Map<String, Object> single = (Map<String, Object>) uploadUrlResp.get("urlInfo");
+            urlInfo = single;
+        } else {
+            urlList = asMapList(uploadUrlResp.get("data"));
             if (urlList.isEmpty()) {
-            throw new RuntimeException("Huawei: upload url response missing urlList, response=" + summarizeMap(uploadUrlResp));
+                throw new RuntimeException("Huawei: upload url response missing urlList/urlInfo, response=" + summarizeMap(uploadUrlResp));
+            }
+            urlInfo = urlList.get(0);
         }
-        Map<String, Object> urlInfo = urlList.get(0);
         String uploadUrl = (String) urlInfo.get("url");
         @SuppressWarnings("unchecked")
         Map<String, String> uploadHeaders = (Map<String, String>) urlInfo.get("headers");