//! Slice targets — one composed scene, sliced into pages | slides | frames
//! (design doc §4). P0/P1/P2 built [`pages`] only; [`slides`] landed P3;
//! [`frames`] (build-steps) is this phase's own P4 addition.
//!
//! [`crate::master::PageMaster`]/[`crate::master::Margins`] moved to
//! `crate::master` this phase (P2) — re-exported here so every existing
//! `crate::slice::{Margins, PageMaster}` import path still resolves
//! unchanged (additive law).
pub use crate;
pub use ;
pub use ;
pub use ;