Replace GIF flag scan with static ISO alpha-3 country list and SVG flags

- Add countries_inc.php: 252 countries as alpha-3 → name + alpha-3 → alpha-2
  map for flag image lookup; derived from webtrees CountryService, no runtime
  webtrees dependency
- Add 243 Marble SVG flags (xx.svg) plus eng/sct/wls/nir for constituent countries
- Remove 244 full-name GIF flags
- RoleUser: set users_country_code (alpha-3), flag (alpha-2 lowercase), and
  users_country (display name) at load time
- preferences.php, register.php, hauth_register.php: replace opendir GIF scan
  with require_once countries_inc.php
- Templates: replace {section loop=$flags} with {foreach $countries as $code => $name};
  iexplain now uses display name instead of raw flag code

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/modules/mod_user_profile.tpl b/modules/mod_user_profile.tpl
index d37bd8b..7b726d2 100644
--- a/modules/mod_user_profile.tpl
+++ b/modules/mod_user_profile.tpl
@@ -34,7 +34,7 @@
 	<div>{tr}Joined{/tr}: {$userInfo.registration_date|bit_short_date}</div>
 	<div>{tr}Last visit{/tr}: {$userInfo.last_login|bit_short_date}</div>
 
-	{if $userPrefs.flag}{biticon iforce=icon ipackage=users ipath="flags/" iname=$userPrefs.flag iexplain=$userPrefs.flag}{/if} {assign var=langcode value=$userPrefs.bitlanguage|default:$gBitSystem->getConfig('bitlanguage','en')}{$gBitLanguage->mLanguageList.$langcode.native_name}
+	{if $userPrefs.flag}{biticon iforce=icon ipackage=users ipath="flags/" iname=$userPrefs.flag iexplain=$userPrefs.users_country}{/if} {assign var=langcode value=$userPrefs.bitlanguage|default:$gBitSystem->getConfig('bitlanguage','en')}{$gBitLanguage->mLanguageList.$langcode.native_name}
 {/bitmodule}
 {/strip}
 {/if}