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/Africa/Tunis.ics

@@ -0,0 +1,82 @@
+BEGIN:VCALENDAR
+PRODID:-//tzurl.org//NONSGML Olson 2025c//EN
+VERSION:2.0
+BEGIN:VTIMEZONE
+TZID:Africa/Tunis
+LAST-MODIFIED:20251211T094730Z
+TZURL:https://www.tzurl.org/zoneinfo/Africa/Tunis
+X-LIC-LOCATION:Africa/Tunis
+X-PROLEPTIC-TZNAME:LMT
+BEGIN:STANDARD
+TZNAME:PMT
+TZOFFSETFROM:+004044
+TZOFFSETTO:+000921
+DTSTART:18810512T000000
+END:STANDARD
+BEGIN:STANDARD
+TZNAME:CET
+TZOFFSETFROM:+000921
+TZOFFSETTO:+0100
+DTSTART:19110311T000000
+END:STANDARD
+BEGIN:DAYLIGHT
+TZNAME:CEST
+TZOFFSETFROM:+0100
+TZOFFSETTO:+0200
+DTSTART:19390415T230000
+RDATE:19400225T230000
+RDATE:19420309T000000
+RDATE:19430329T020000
+RDATE:19430425T020000
+RDATE:19770430T000000
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+RDATE:19880601T000000
+RDATE:19890326T000000
+RDATE:19900501T000000
+RDATE:20050501T000000
+END:DAYLIGHT
+BEGIN:STANDARD
+TZNAME:CET
+TZOFFSETFROM:+0200
+TZOFFSETTO:+0100
+DTSTART:19391119T000000
+RDATE:19411006T000000
+RDATE:19421102T030000
+RDATE:19430417T020000
+RDATE:19431004T020000
+RDATE:19441008T000000
+RDATE:19450916T000000
+RDATE:19770924T010000
+RDATE:19781001T010000
+RDATE:20050930T020000
+END:STANDARD
+BEGIN:DAYLIGHT
+TZNAME:CEST
+TZOFFSETFROM:+0100
+TZOFFSETTO:+0200
+DTSTART:19440403T020000
+RRULE:FREQ=YEARLY;BYMONTH=4;BYDAY=1MO;UNTIL=19450402T010000Z
+END:DAYLIGHT
+BEGIN:STANDARD
+TZNAME:CET
+TZOFFSETFROM:+0200
+TZOFFSETTO:+0100
+DTSTART:19880925T010000
+RRULE:FREQ=YEARLY;BYMONTH=9;BYDAY=-1SU;UNTIL=19900929T230000Z
+END:STANDARD
+BEGIN:DAYLIGHT
+TZNAME:CEST
+TZOFFSETFROM:+0100
+TZOFFSETTO:+0200
+DTSTART:20060326T020000
+RRULE:FREQ=YEARLY;BYMONTH=3;BYDAY=-1SU;UNTIL=20080330T010000Z
+END:DAYLIGHT
+BEGIN:STANDARD
+TZNAME:CET
+TZOFFSETFROM:+0200
+TZOFFSETTO:+0100
+DTSTART:20061029T030000
+RRULE:FREQ=YEARLY;BYMONTH=10;BYDAY=-1SU;UNTIL=20081026T010000Z
+END:STANDARD
+END:VTIMEZONE
+END:VCALENDAR