/**
 * Search & Retrieval Subsystem
 *
 * Trigram n-gram index, hybrid BM25+vector retrieval, entity extraction,
 * graph traversal, semantic ranking, and RAG collection management.
 *
 * Primary entrypoints:
 *   NgramIndex / getSharedNgramIndex(dbPath)
 *   RagCollectionStore(stateDir)
 *   HybridRetriever
 */
export * from '../ngram-index.js';
export * from '../hybrid-retriever.js';
export * from '../entity-extractor.js';
export * from '../embedder.js';
export * from '../graph-traversal.js';
export * from '../semantic-ranking.js';
export * from '../rag-collections.js';
