//! Storage backends for the RBAC engine: in-memory implementations for tests
//! and development, plus the persistence SPI traits a deployment implements
//! against its own database.
//!
//! Security semantics shared by this layer: reads are the authoritative input
//! to every decision, so a store error must surface as an error and never as
//! an empty result (an empty result means "no authority" for grants but "no
//! restriction" for constraints, and guessing either way is wrong); writes are
//! authority changes and must be durable before returning; deletes are
//! idempotent and report whether a row existed. The in-memory backends are
//! per-process and not persistent, so a restart drops all authority
//! (fail-closed) and replicas do not share state.
/// In-memory assignment and role stores, for tests and single-process use.
/// Persistence SPI traits and row types for external databases.
/// Static, in-process permission and role registries.
pub use ;
/// Trust-score persistence, available with the dynamic-authorization feature.
pub use PersistentTrustStore;
/// Persistence SPI for assignments, roles, constraints and audit entries.
pub use ;
pub use ;