文件实体增加文件预览标记，标识是否生成了浏览器支持的格式预览文件。

modules/core/src/main/resources/config/jeesite-core.yml

@@ -265,6 +265,8 @@ job:
     isClustered: true
     dataSourceName: job
     clusterCheckinInterval: 1000
+#    className: org.quartz.impl.jdbcjobstore.JobStoreTX
+#    className: org.quartz.impl.jdbcjobstore.JobStoreCMT
 
   # 调度日志配置
   log:

modules/core/src/main/resources/db/upgrade/core/mysql/mysql_4.2.0.sql

@@ -2,3 +2,7 @@
 -- 新增权限审计菜单
 INSERT INTO ${_prefix}sys_menu(menu_code, parent_code, parent_codes, tree_sort, tree_sorts, tree_leaf, tree_level, tree_names, menu_name, menu_type, menu_href, menu_target, menu_icon, menu_color, menu_title, permission, weight, is_show, sys_code, module_codes, status, create_by, create_date, update_by, update_date, remarks, extend_s1, extend_s2, extend_s3, extend_s4, extend_s5, extend_s6, extend_s7, extend_s8, extend_i1, extend_i2, extend_i3, extend_i4, extend_f1, extend_f2, extend_f3, extend_f4, extend_d1, extend_d2, extend_d3, extend_d4) 
 VALUES ('1238121573028433920', '0', '0,', 10, '0000000010,', '1', 0, '安全审计', '安全审计', '1', '/sys/audit/list', '', 'icon-energy', '', '', 'sys:audit', 80, '1', 'default', 'core', '0', 'system', now(), 'system', now(), '', '', '', '', '', '', '', '', '', NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL);
+
+-- 文件表增加文件预览标记
+ALTER TABLE `${_prefix}sys_file_entity` 
+ADD COLUMN `file_preview` char(1) NULL COMMENT '文件预览标记' AFTER `file_meta`;