fix(update): 修复版本列表排序并改进Android包上传功能

- 将版本查询排序从versionCode改为createdAt以正确显示最新版本
- 为Android包上传表单添加已上传文件显示区域
- 实现删除已上传文件的功能以便重新上传
- 添加上传组件引用以支持文件清除操作
- 增加Document和Delete图标导入用于文件管理界面
- 添加已上传文件信息的样式和布局支持

update-service/src/main/java/com/xuqm/update/controller/AppVersionController.java

@@ -471,7 +471,7 @@ public class AppVersionController {
     public ResponseEntity<ApiResponse<List<AppVersionEntity>>> list(
             @RequestParam String appKey, @RequestParam AppVersionEntity.Platform platform) {
         return ResponseEntity.ok(ApiResponse.success(
-                versionRepository.findByAppKeyAndPlatformOrderByVersionCodeDesc(appKey, platform)));
+                versionRepository.findByAppKeyAndPlatformOrderByCreatedAtDesc(appKey, platform)));
     }
 
     private String publishAction(AppVersionEntity.PublishStatus previousStatus,

update-service/src/main/java/com/xuqm/update/repository/AppVersionRepository.java

@@ -11,6 +11,9 @@ import java.util.Optional;
 public interface AppVersionRepository extends JpaRepository<AppVersionEntity, String> {
     List<AppVersionEntity> findByAppKeyAndPlatformOrderByVersionCodeDesc(
             String appKey, AppVersionEntity.Platform platform);
+
+    List<AppVersionEntity> findByAppKeyAndPlatformOrderByCreatedAtDesc(
+            String appKey, AppVersionEntity.Platform platform);
     Optional<AppVersionEntity> findTopByAppKeyAndPlatformAndPublishStatusOrderByVersionCodeDesc(
             String appKey, AppVersionEntity.Platform platform, AppVersionEntity.PublishStatus status);
     Optional<AppVersionEntity> findTopByAppKeyAndPlatformAndPublishStatusAndVersionCodeGreaterThanOrderByVersionCodeDesc(