Rath Brothers & Co. — Installation

This creates the MySQL tables, the first super-admin account and safe supplier-pending content.

Use the exact temporary URL. Canonical URLs, Open Graph tags and the sitemap are generated from this value.
Used in contact details and logged email previews. Test deployments remain in log-only mode.
No real email is sent from the test host. Messages are written to the protected storage/logs/mail.log file.