feat(domain): Domain\Scontainers + Domain\Banners repositories z wrapper delegation

Phase 3 complete:
- ScontainersRepository: containerDetails, containerSave, containerDelete, scontainerByLang
- BannersRepository: bannerDetails, bannerSave, bannerDelete, activeBanners, mainBanner
- 4 legacy factories converted to thin wrappers delegating to Domain repos

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

autoload/front/factory/class.Scontainers.php

@@ -6,18 +6,7 @@ class Scontainers
   public static function scontainer_details( $scontainer_id )
   {
     global $mdb, $lang;
-    
-    if ( !$scontainer = \Cache::fetch( "scontainer_details:$scontainer_id:" . $lang[0] ) )
-    {    
-      $scontainer = $mdb -> get( 'pp_scontainers', '*', [ 'id' => (int)$scontainer_id ] );
-
-      $results = $mdb -> select( 'pp_scontainers_langs', '*', [ 'AND' => [ 'container_id' => (int)$scontainer_id, 'lang_id' => $lang[0] ] ] );
-      if ( is_array( $results ) ) foreach ( $results as $row )
-        $scontainer['languages'] = $row;
-      
-      \Cache::store( "scontainer_details:$scontainer_id:" . $lang[0], $scontainer );
-    }
-    
-    return $scontainer;
+    $repo = new \Domain\Scontainers\ScontainersRepository($mdb);
+    return $repo->scontainerByLang($scontainer_id, $lang[0]);
   }
-}
+}