// SPDX-License-Identifier: Apache-2.0
// Copyright (c) 2026 ReifyDB
//! The surface external code extends ReifyDB through. Everything here is a stable contract, versioned on both
//! sides, and the extern-C layer never leaks an engine-internal type - an extension sees only `reifydb-value` and this
//! crate's re-exports, because anything else would tie extension ABI to engine refactors.