Expand description
§datasource — single-ring adapter module
Runtime catalog of datasource pools keyed by name, with a PoolFactory
registry and lazy OnceCell pool initialization.
§Ring classification (ADR-0045 §5)
Single-ring Interface Adapters module. RuntimeDatasourceCatalog holds
dashmap::DashMap, tokio::sync::OnceCell, parking_lot::RwLock fields
and orchestrates framework I/O via get_pool/resolve_factory. Earlier
3-ring split mislabeled the stateful catalog as “domain”; this single-file
adapter form corrects the label so the dependency rule holds.