//! Characterization: describe concepts + LLM/visualization export.
//!
//! Modules that compute properties of nodes/subgraphs (mass, archetype purity,
//! spectral decomposition, propagation behaviour) and that emit graph data in
//! formats consumed by downstream tools (Mermaid, force-directed layouts,
//! Markdown for LLM context).
//!
//! Experimental — gated by `features = ["semantic-characterization"]` (or the `nova` umbrella).
// `wildfire` is a stub awaiting revival — see CHANGELOG / ADR-0050.
// pub mod wildfire;