//! MongrelDB commit-log abstraction and versioned command envelope.
//!
//! This crate defines the durable-write contract of the engine
//! (spec sections 6.2, 9.3, 9.4):
//!
//! - [`CommandEnvelope`]: the versioned, checksummed, canonically encoded
//! form of every persisted cluster/transaction command.
//! - [`CommitLog`]: the single authority through which commands become
//! committed. The storage apply path receives only committed commands.
//!
//! The standalone adapter (`StandaloneCommitLog`) lives in `mongreldb-core`
//! because it wraps the existing shared WAL; the replicated adapter lands
//! with the consensus crate in Stage 2.
pub use ;
pub use ;
pub use ;