feat: Add CronJob functionality and integrate with existing services

- Implemented CronJobProcessor for managing scheduled jobs and processing job queues.
- Created CronJobRepository for database interactions related to cron jobs.
- Defined CronJobType for job types, statuses, and backoff calculations.
- Added ApiloLogger for logging actions related to API interactions.
- Enhanced UpdateController to check for updates and display update logs.
- Updated FormAction to include a preview action for forms.
- Modified ApiRouter to handle new dependencies for OrderAdminService and ProductsApiController.
- Extended DictionariesApiController to manage attributes and producers.
- Enhanced ProductsApiController with variant management and image upload functionality.
- Updated ShopBasketController and ShopProductController to sort attributes and handle custom fields.
- Added configuration for cron jobs in config.php.
- Initialized apilo-sync-queue.json for managing sync tasks.

autoload/Shared/Tpl/Tpl.php

@@ -60,4 +60,9 @@ class Tpl
   {
     return $this->vars[$name];
   }
+
+  public function __isset($name)
+  {
+    return isset($this->vars[$name]);
+  }
 }