refactor: move workspace policy into core

crates/ferese-core/Cargo.toml

@@ -0,0 +1,9 @@
+[package]
+name = "ferese-core"
+version.workspace = true
+edition.workspace = true
+license.workspace = true
+rust-version.workspace = true
+
+[dependencies]
+ferese-layout = { path = "../ferese-layout" }

crates/ferese-core/src/lib.rs

@@ -0,0 +1,3 @@
+mod workspace;
+
+pub use workspace::{Workspace, WorkspaceError, WorkspaceId, WorkspaceSet};

crates/ferese-core/src/workspace.rs

@@ -2,7 +2,7 @@ use std::collections::{HashMap, HashSet};
 use std::error::Error;
 use std::fmt;
 
-use crate::{Axis, LayoutError, LayoutTree, WindowId};
+use ferese_layout::{Axis, LayoutError, LayoutTree, WindowId};
 
 #[derive(Clone, Copy, Debug, Eq, Hash, PartialEq)]
 pub struct WorkspaceId(pub u64);

crates/ferese-layout/src/lib.rs

@@ -2,10 +2,6 @@ use std::collections::{HashMap, HashSet};
 use std::error::Error;
 use std::fmt;
 
-mod workspace;
-
-pub use workspace::{Workspace, WorkspaceError, WorkspaceId, WorkspaceSet};
-
 const MIN_SPLIT_RATIO: f64 = 0.05;
 const MAX_SPLIT_RATIO: f64 = 0.95;