internal/

Package cli defines the pg-sprite command tree (Kong): migrate and status (the optimistic front door), pull, diff, and fmt (the declarative front door), and lint and suggest (the offline checker and advisor).

Package safety holds repository-wide tests that pin SAFETY.md's contracts to the code, where a single package cannot legitimately speak for the whole repository.

Package testutil is the integration-test harness: a real PostgreSQL in a container plus per-test throwaway schemas.