`serverpod cloud db user create` says it creates a superuser, but the user can't change tables

[Zfinix]

serverpod cloud db user create says it creates a superuser (Create a new superuser in the Serverpod Cloud DB.), and so do the Cloud database docs. The user it creates can read and write rows, and that's it. Superuser advice from elsewhere, like pg_restore --disable-triggers, then fails with permission errors that the word "superuser" doesn't explain.

Reproduction

Create a user with serverpod cloud db user create permcheck, connect, and run each statement inside BEGIN; ... ROLLBACK;.

Statement	Result
SELECT rolsuper for the current user	false (member of neon_superuser, tables owned by owner)
CREATE TABLE public.t (x int)	permission denied for schema public
ALTER TABLE ... ADD COLUMN	must be owner of table serverpod_auth_core_profile
ALTER TABLE ... DISABLE TRIGGER ALL	must be owner of table serverpod_auth_core_profile
SET LOCAL session_replication_role = replica	permission denied to set parameter "session_replication_role"
INSERT, UPDATE, DELETE, sequence UPDATE	allowed

Suggested fix

Call it a database user in the db user help text (create, list, and delete all say superuser), and say that it can read and write data but can't create or change tables. The strings are in db_command.dart, db_ops.dart, and db_ui.dart in the Cloud CLI. The Cloud docs use the same word in cloud/concepts/database.md and the scloud db reference intro.

Cloud CLI 1.0.0, PostgreSQL 17.11.

Related: serverpod/serverpod_docs#853