add template variables

lib/submitters/serialize_for_webhook.rb

@@ -35,8 +35,7 @@ module Submitters
                       'audit_log_url' => submitter.submission.audit_log_url(expires_at:),
                       'submission_url' => r.submissions_preview_url(submission.slug, **Docuseal.default_url_options),
                       'template' => submission.template.as_json(
-                        only: %i[id name external_id created_at updated_at],
-                        methods: %i[folder_name]
+                        only: %i[id name external_id created_at updated_at], methods: %i[folder_name]
                       ),
                       'submission' => {
                         'id' => submission.id,
@@ -44,6 +43,7 @@ module Submitters
                         'combined_document_url' => submission.combined_document_url(expires_at:),
                         'status' => build_submission_status(submission),
                         'url' => r.submissions_preview_url(submission.slug, **Docuseal.default_url_options),
+                        'variables' => (submission.variables || {}).as_json,
                         'created_at' => submission.created_at.as_json
                       })
     end