feat: restart update failed and auto restore backup

update

@@ -36,6 +36,10 @@ install_backend_and_download_resources() {
                     cp -a /app/app/plugins/* /plugins/
                     # 不备份__init__.py
                     rm -f /plugins/__init__.py
+                    # 提前备份旧 resources 资源
+                    rm -rf /resources_bakcup
+                    mkdir /resources_bakcup
+                    cp -a /app/app/helper/* /resources_bakcup
                     # 清空目录
                     rm -rf /app
                     mkdir -p /app
@@ -69,9 +73,13 @@ install_backend_and_download_resources() {
                             rm -rf /tmp/*
                             echo "资源包更新成功"
                         else
+                            cp -a /resources_bakcup/* /app/app/helper/
+                            rm -rf /resources_bakcup
                             echo "资源包下载失败，继续使用旧的资源包来启动..."
                         fi
                     else
+                        cp -a /plugins/* /app/app/plugins/
+                        rm -rf /plugins
                         echo "插件下载失败，继续使用旧的插件来启动..."
                     fi
                 else