A seeded row cannot be told apart from a host's own row with the same name
('default' profile, policy, starter skill names), and Liquibase also rolls
back changesets it marked ran, so the name-based rollback lines could delete
a host's data. Every seed changeset now rolls back to nothing; the test runs
a real Liquibase rollback over host-owned rows and checks they survive.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>