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。

tzurl/zoneinfo/America/Belize.ics

@@ -0,0 +1,72 @@
+BEGIN:VCALENDAR
+PRODID:-//tzurl.org//NONSGML Olson 2025c//EN
+VERSION:2.0
+BEGIN:VTIMEZONE
+TZID:America/Belize
+LAST-MODIFIED:20251211T094730Z
+TZURL:https://www.tzurl.org/zoneinfo/America/Belize
+X-LIC-LOCATION:America/Belize
+X-PROLEPTIC-TZNAME:LMT
+BEGIN:STANDARD
+TZNAME:CST
+TZOFFSETFROM:-055248
+TZOFFSETTO:-0600
+DTSTART:19120401T000000
+END:STANDARD
+BEGIN:DAYLIGHT
+TZNAME:-0530
+TZOFFSETFROM:-0600
+TZOFFSETTO:-0530
+DTSTART:19181006T000000
+RRULE:FREQ=YEARLY;BYMONTH=10;BYMONTHDAY=2,3,4,5,6,7,8;BYDAY=SU;UNTIL=19411005T060000Z
+END:DAYLIGHT
+BEGIN:STANDARD
+TZNAME:CST
+TZOFFSETFROM:-0530
+TZOFFSETTO:-0600
+DTSTART:19190209T000000
+RRULE:FREQ=YEARLY;BYMONTH=2;BYMONTHDAY=9,10,11,12,13,14,15;BYDAY=SU;UNTIL=19420215T053000Z
+END:STANDARD
+BEGIN:DAYLIGHT
+TZNAME:CWT
+TZOFFSETFROM:-0600
+TZOFFSETTO:-0500
+DTSTART:19420628T000000
+END:DAYLIGHT
+BEGIN:DAYLIGHT
+TZNAME:CPT
+TZOFFSETFROM:-0500
+TZOFFSETTO:-0500
+DTSTART:19450814T180000
+END:DAYLIGHT
+BEGIN:STANDARD
+TZNAME:CST
+TZOFFSETFROM:-0500
+TZOFFSETTO:-0600
+DTSTART:19451216T000000
+RDATE:19740209T000000
+RDATE:19830212T000000
+END:STANDARD
+BEGIN:DAYLIGHT
+TZNAME:-0530
+TZOFFSETFROM:-0600
+TZOFFSETTO:-0530
+DTSTART:19471005T000000
+RRULE:FREQ=YEARLY;BYMONTH=10;BYMONTHDAY=2,3,4,5,6,7,8;BYDAY=SU;UNTIL=19671008T060000Z
+END:DAYLIGHT
+BEGIN:STANDARD
+TZNAME:CST
+TZOFFSETFROM:-0530
+TZOFFSETTO:-0600
+DTSTART:19480215T000000
+RRULE:FREQ=YEARLY;BYMONTH=2;BYMONTHDAY=9,10,11,12,13,14,15;BYDAY=SU;UNTIL=19680211T053000Z
+END:STANDARD
+BEGIN:DAYLIGHT
+TZNAME:CDT
+TZOFFSETFROM:-0600
+TZOFFSETTO:-0500
+DTSTART:19731205T000000
+RDATE:19821218T000000
+END:DAYLIGHT
+END:VTIMEZONE
+END:VCALENDAR