MRBS 1.12.2 等保2.0二级整改完整提交

包含：登录失败锁定、90天密码有效期、30分钟会话超时、
强制改密、登录审计日志、屏幕水印、企业背景图、
备案信息固定底部、favicon、JS空集合保护、
会话过期体验优化（403 JSON）、display_errors 关闭、
固定 key 根治 Integrity check failed 等全部改动

注意：config.inc.php/.htaccess/.user.ini 含敏感信息，
通过 .gitignore 排除，勿推送到公开仓库。

upgrade/62/pgsql.sql

@@ -0,0 +1,25 @@
+-- Replace rep_num_weeks and rep_num_months by interval
+
+-- No need to save the current timestamp because timestamps do not auto-update
+-- in PostgreSQL.  However we do need to disable the triggger which does the
+-- update and then re-enable it at the end.
+
+ALTER TABLE %DB_TBL_PREFIX%repeat
+  DISABLE TRIGGER USER;
+
+ALTER TABLE %DB_TBL_PREFIX%repeat
+  ADD COLUMN rep_interval smallint DEFAULT 1 NOT NULL;
+  
+UPDATE %DB_TBL_PREFIX%repeat
+  SET rep_interval=rep_num_weeks WHERE rep_type=2 AND rep_num_weeks IS NOT NULL;
+  
+UPDATE %DB_TBL_PREFIX%repeat
+  SET rep_interval=rep_num_months WHERE rep_type=3 AND rep_num_months IS NOT NULL;
+  
+ALTER TABLE %DB_TBL_PREFIX%repeat
+  DROP COLUMN rep_num_weeks,
+  DROP COLUMN rep_num_months;
+
+ALTER TABLE %DB_TBL_PREFIX%repeat
+  ENABLE TRIGGER USER;
+