ver. 0.287: Scontainers + ShopAttribute frontend migration to Domain

- Scontainers: frontScontainerDetails() with Redis cache in ScontainersRepository
- Scontainers: new front\Views\Scontainers VIEW, deleted factory + view legacy
- ShopAttribute: frontAttributeDetails(), frontValueDetails() with Redis cache in AttributeRepository
- ShopAttribute: clearFrontCache() per attribute/value + language
- ShopAttribute: deleted front\factory\ShopAttribute, updated 4 callers
- Tests: 476 OK, 1512 assertions (+6 frontend tests)

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

autoload/Domain/Scontainers/ScontainersRepository.php

@@ -213,6 +213,41 @@ class ScontainersRepository
         ";
     }
 
+    // ── Frontend methods ──────────────────────────────────────────
+
+    public function frontScontainerDetails(int $scontainerId, string $langId): array
+    {
+        $cacheHandler = new \Shared\Cache\CacheHandler();
+        $cacheKey = "ScontainersRepository::frontScontainerDetails:$scontainerId";
+
+        $objectData = $cacheHandler->get($cacheKey);
+        if ($objectData) {
+            $cached = @unserialize($objectData);
+            if (is_array($cached)) {
+                return $cached;
+            }
+            $cacheHandler->delete($cacheKey);
+        }
+
+        $scontainer = $this->detailsForLanguage($scontainerId, $langId);
+
+        if (!is_array($scontainer)) {
+            $scontainer = [
+                'id' => $scontainerId,
+                'status' => 0,
+                'show_title' => 0,
+                'languages' => [
+                    'lang_id' => $langId,
+                    'title' => '',
+                    'text' => '',
+                ],
+            ];
+        }
+
+        $cacheHandler->set($cacheKey, $scontainer);
+        return $scontainer;
+    }
+
     private function clearFrontCache(int $containerId): void
     {
         if ($containerId <= 0 || !class_exists('\Shared\Cache\CacheHandler')) {
@@ -220,8 +255,7 @@ class ScontainersRepository
         }
 
         $cacheHandler = new \Shared\Cache\CacheHandler();
-        $cacheKey = '\front\factory\Scontainers::scontainer_details:' . $containerId;
-        $cacheHandler->delete($cacheKey);
+        $cacheHandler->delete('ScontainersRepository::frontScontainerDetails:' . $containerId);
     }
 
     /**