Serves the `mysql` capability socket from pasted connection details (host/port/adminUser/adminPassword/database), and — like the bundled provider — auto-creates each consumer's database (and optional dedicated user) on the external server. No bundled server. Presets: AWS RDS / Aurora MySQL (<id>.<region>.rds.amazonaws.com:3306, master user "admin"), Google Cloud SQL for MySQL, Azure Database for MySQL, PlanetScale, MariaDB SkySQL.