Function persistIndex

src/context/retrieval.ts:199–205

(projectRoot: string, embeddingModel: string, idx: Index)

 * better-sqlite3 can't load we still have the JSON.
 */
export async function persistIndex(projectRoot: string, embeddingModel: string, idx: Index): Promise<void> {
  await saveIndex(indexPath(projectRoot, embeddingModel), idx).catch(() => {});
  try {
    const { buildSqliteIndex } = await import('./sqlite-index.js');
    await buildSqliteIndex(projectRoot, embeddingModel, idx.chunks);
  } catch { /* SQLite optional — JSON remains authoritative */ }
}

/**
 * Search the persisted index for a project, preferring the SQLite quantized