//! API-001 / PERF-002: full-shard sequence scan used by `EventStore::scan`.
//!
//! The production scan path no longer walks the committed tree. It reads the
//! actor-owned ordered stream index, so enumeration is O(streams) while keeping
//! the same per-shard lexicographic stream-key ordering.
use ;
use ;
/// Return every stream's decoded `(stream_key, next_seq)` from the secondary
/// index in per-shard lexicographic order.
pub