//! Backend driver primitives for Athena.
//!
//! The first extraction slice owns Scylla execution, shared host-health
//! tracking, the health-aware Supabase client core, and a first set of
//! portable PostgreSQL helper modules, including schema cache and column
//! resolution. The remaining PostgreSQL registry/pool runtime and high-level
//! CRUD execution surfaces still follow in later passes.

pub mod d1;
pub mod postgresql;
pub mod scylla;
pub mod supabase;
