fix(app): Add Referer header to downloader request

- Add Referer header with value 'wms-liexin2026' to download request
- Improve request compatibility and security by including proper headers
- Refactor downloader.createDownload call to pass header configuration object

App.vue

@@ -38,7 +38,11 @@
                     title: '下载安装文件',
                     mask: true
                 });
-                let dtask = plus.downloader.createDownload(url, {}, (d, status) => {
+                let dtask = plus.downloader.createDownload(url, {
+                    header: {
+                        Referer: 'wms-liexin2026'
+                    }
+                }, (d, status) => {
                     if (status == 200) {
                         this.local_version = this.online_version; //更新最新版本号
                         uni.setStorageSync('wms_version', this.online_version); //更新本地存储最新版本号