From 39336fe844fc2f148fc60cf7453a6cb1bca7deed Mon Sep 17 00:00:00 2001
From: aiongg <aiongtaigi@gmail.com>
Date: Mon, 26 Oct 2026 19:50:57 +0000
Subject: [PATCH] refactor(engine): move session::snapshot_types to the crate
 root as snapshot

---
 crates/engine/src/lib.rs                                   | 1 +
 crates/engine/src/session.rs                               | 4 ++--
 .../engine/src/{session/snapshot_types.rs => snapshot.rs}  | 7 +++++--
 3 files changed, 8 insertions(+), 4 deletions(-)
 rename crates/engine/src/{session/snapshot_types.rs => snapshot.rs} (94%)

diff --git a/crates/engine/src/lib.rs b/crates/engine/src/lib.rs
index 223f2ba90..b456abcd8 100644
--- a/crates/engine/src/lib.rs
+++ b/crates/engine/src/lib.rs
@@ -21,6 +21,7 @@ pub mod recovery;
 pub mod ribbon;
 pub mod sample;
 mod session;
+pub(crate) mod snapshot;
 pub mod speech;
 pub(crate) mod view;
 
diff --git a/crates/engine/src/session.rs b/crates/engine/src/session.rs
index 459b1b8d3..5a2a58ac3 100644
--- a/crates/engine/src/session.rs
+++ b/crates/engine/src/session.rs
@@ -6,7 +6,7 @@ use serde_json::Value;
 use wordcraft_doc::edit::Fragment;
 use wordcraft_doc::props::CharProps;
 use wordcraft_doc::{Document, PartKind, Path, Pos, StoryRef};
-use wordcraft_layout::{DocLayout, LayoutCache, LayoutOptions, NumeralMode, ViewMode};
+use wordcraft_layout::{DocLayout, LayoutCache, LayoutOptions, ViewMode};
 
 use crate::{CmdError, ImeEditOutcome, Registry};
 
@@ -23,11 +23,11 @@ mod lifecycle;
 mod query;
 mod run;
 mod snapshot;
-mod snapshot_types;
 
 use crate::doc_state;
 use crate::locale;
 use crate::prefs;
+use crate::snapshot as snapshot_types;
 use crate::view;
 pub(crate) use doc_state::Widened;
 pub use doc_state::{CellRange, ColumnBlock, FindState, MathEdit, Selection, UNDO_LIST_MAX, next_math_session};
diff --git a/crates/engine/src/session/snapshot_types.rs b/crates/engine/src/snapshot.rs
similarity index 94%
rename from crates/engine/src/session/snapshot_types.rs
rename to crates/engine/src/snapshot.rs
index a0709106b..72f0b6a55 100644
--- a/crates/engine/src/session/snapshot_types.rs
+++ b/crates/engine/src/snapshot.rs
@@ -1,5 +1,8 @@
-use super::doc_state::{ColumnBlock, Selection, Undo};
-use super::*;
+use crate::doc_state::{ColumnBlock, Selection, Undo};
+use std::sync::Arc;
+
+use wordcraft_doc::Document;
+use wordcraft_layout::{DocLayout, NumeralMode, ViewMode};
 
 /// What [`Session::restore`] needs to take commands back exactly: the document, the selection,
 /// the undo and redo stacks (also the oldest undo steps the undo limit pushes out meanwhile), the