Serves the `mongodb` capability socket from pasted connection details (host/port/adminUsername/adminPassword/database, or a full connection URI), and — like the bundled provider — auto-provisions each consumer's database user on the external cluster. No bundled server. Presets: MongoDB Atlas (paste the cluster URI, tls=true), AWS DocumentDB (docdb.<region>.amazonaws.com:27017, tls=true), Azure Cosmos DB for MongoDB, self-managed replica sets.