T03 layout: stacks, grids, surfaces, scroll, splits, sheets, dock, panes, workspace, viewport

Cargo.toml

@@ -20,6 +20,8 @@ jiff = "0.2"
 log = "0.4"
 regex = "1"
 rust-embed = "8.12"
+serde = { version = "1", features = ["derive"] }
+serde_json = "1"
 smallvec = "1"
 unicode-segmentation = "1"