Starts a PHP session if the current request is any frontend form request.
Upgrades legacy form meta when a form is accessed in the admin.
Upgrades legacy form attachments when the admin is initialized.
Sets up all action and filter hooks for the service.
Internal method to delete a form from the database.
Internal method to fetch a form from the database.
Maps form arguments to regular post arguments.
Deletes sub-components of a form that is about to be deleted.
Registers settings for the REST API.