security: faza 3 - error handling w krytycznych sciezkach

- cron.php: przywrocono E_WARNING i E_DEPRECATED (wyciszono tylko E_NOTICE i E_STRICT)
- IntegrationsRepository: try-catch po zapisie tokenow Apilo - blad DB nie sklada false po cichu
- ProductRepository/ArticleRepository: error_log gdy safeUnlink wykryje sciezke poza upload/

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

autoload/Domain/Product/ProductRepository.php

@@ -2140,6 +2140,8 @@ class ProductRepository
         $full = realpath('../' . ltrim($src, '/'));
         if ($full && strpos($full, $base . DIRECTORY_SEPARATOR) === 0 && is_file($full)) {
             unlink($full);
+        } elseif ($full) {
+            error_log( '[shopPRO] safeUnlink: ścieżka poza upload/: ' . $src );
         }
     }