ver. 0.280: Articles frontend migration, class.Article removal, Settings facade cleanup

- Add 8 frontend methods to ArticleRepository (with Redis cache)
- Create front\Views\Articles (rendering + utility methods)
- Rewire front\view\Site::show() and front\controls\Site::route() to repo + Views
- Update 5 article templates to use \front\Views\Articles::
- Convert front\factory\Articles and front\view\Articles to facades
- Remove class.Article (entity + static methods migrated to repo + Views)
- Remove front\factory\Settings facade (already migrated)
- Fix: eliminate global $lang from articleNoindex(), inline page sort query
- Tests: 450 OK, 1431 assertions (+13 new)

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

templates/articles/article-miniature.php

@@ -15,7 +15,7 @@
     if ( $this -> article['show_date_modify'] )
       echo '<div class="date-add">' . $lang['data-modyfikacji'] . ': ' . $this -> article['date_modify'] . '</div>';
     
-    if ( $img = \front\factory\Articles::get_image( $this -> article ) ):
+    if ( $img = \front\Views\Articles::getImage( $this -> article ) ):
       ?>
         <a href="./<?= $url;?>" title="<?= $this -> article['language']['title'];?>" <? if ( $this -> article['language']['noindex'] ):?>rel="nofollow"<? endif;?>>
           <div style="background: url( '/libraries/thumb.php?img=<?= $img;?>&w=250&h=250' ) no-repeat center;"></div>