//! Schema introspection and diffing.
//!
//! This module will eventually:
//! - Introspect Postgres to get the current schema
//! - Reflect facet types to get the desired schema
//! - Diff them to detect drift
//! - Generate migration skeletons
// TODO: Implement schema introspection
// TODO: Implement facet-based schema reflection
// TODO: Implement diffing