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/Pacific/Efate.ics

@@ -0,0 +1,51 @@
+BEGIN:VCALENDAR
+PRODID:-//tzurl.org//NONSGML Olson 2025c//EN
+VERSION:2.0
+BEGIN:VTIMEZONE
+TZID:Pacific/Efate
+LAST-MODIFIED:20251211T094730Z
+TZURL:https://www.tzurl.org/zoneinfo/Pacific/Efate
+X-LIC-LOCATION:Pacific/Efate
+X-PROLEPTIC-TZNAME:LMT
+BEGIN:STANDARD
+TZNAME:+11
+TZOFFSETFROM:+111316
+TZOFFSETTO:+1100
+DTSTART:19120113T000000
+END:STANDARD
+BEGIN:DAYLIGHT
+TZNAME:+12
+TZOFFSETFROM:+1100
+TZOFFSETTO:+1200
+DTSTART:19731222T230000
+RDATE:19921025T000000
+END:DAYLIGHT
+BEGIN:STANDARD
+TZNAME:+11
+TZOFFSETFROM:+1200
+TZOFFSETTO:+1100
+DTSTART:19740331T000000
+END:STANDARD
+BEGIN:DAYLIGHT
+TZNAME:+12
+TZOFFSETFROM:+1100
+TZOFFSETTO:+1200
+DTSTART:19830925T000000
+RRULE:FREQ=YEARLY;BYMONTH=9;BYMONTHDAY=23,24,25,26,27,28,29;BYDAY=SU;UNTIL=19910928T130000Z
+END:DAYLIGHT
+BEGIN:STANDARD
+TZNAME:+11
+TZOFFSETFROM:+1200
+TZOFFSETTO:+1100
+DTSTART:19840325T000000
+RRULE:FREQ=YEARLY;BYMONTH=3;BYMONTHDAY=23,24,25,26,27,28,29;BYDAY=SU;UNTIL=19910323T120000Z
+END:STANDARD
+BEGIN:STANDARD
+TZNAME:+11
+TZOFFSETFROM:+1200
+TZOFFSETTO:+1100
+DTSTART:19920126T000000
+RRULE:FREQ=YEARLY;BYMONTH=1;BYMONTHDAY=23,24,25,26,27,28,29;BYDAY=SU;UNTIL=19930123T120000Z
+END:STANDARD
+END:VTIMEZONE
+END:VCALENDAR