/**
 * PRI-443 Phase 5: runtime-v2 barrel I/O cleanup
 *
 * Verifies that:
 * 1. runtime-v2/index.ts does NOT re-export I/O functions (loadLedger, saveLedger,
 *    getLedgerFilePathPublic, updatePrinciple) — these belong in the I/O module
 * 2. runtime-v2/index.ts does NOT re-export LedgerTreeStore from
 *    '../principle-tree-ledger.js' — types come from pure modules
 * 3. package.json exposes "./principle-tree-ledger" subpath for direct I/O access
 */
export {};
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