//! Principle registry + matrix generator.
//!
//! The registry is the single source of truth linking spec requirements
//! (MUSTs, SHOULDs, MAYs across P1–P7) to the audits that verify them.
//! `Audit::covers()` declares which requirement IDs an audit evidences; the
//! matrix generator inverts that mapping to produce coverage artifacts.
// Re-exports used by downstream code + tests.
pub use ;