//! Engine domain internals — pub(crate) only.
//!
//! This module hosts the deterministic engine core. Nothing here is part of
//! the public API; only `application/` and `EngineHandle` are public.
//!
//! Components:
//! - `gateway` — ingestion / write gateway (provenance stamp, tx-time)
//! - `gate` — adjudication gate (pure deterministic function)
//!
//! Dead-code lints are suppressed here: items are `pub(crate)` and will be consumed
//! by application/ and EngineHandle. The lints fire now only because no
//! callers exist outside tests yet.
pub
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