feat(k-ui): glass look: orb wallpaper + blurred, tinted glass panels (half-res backdrop per theme+size, integer code, frames only copy), soft analytic shadow, top gloss; contrast checked over wallpaper/glass per orb (light accent -> #0a5cb0); partial frames drawn in place; Rect geometry, tree lookups split out; settings/tally 6 MiB

crates/k-ui/src/lib.rs

@@ -9,12 +9,14 @@
 extern crate alloc;
 
 pub mod element;
+pub mod glass;
 pub mod layout;
 pub mod motion;
 pub mod render;
 pub mod run;
 pub mod text;
 pub mod theme;
+mod tree;
 pub mod ui;
 
 pub use element::{Element, Size, button, column, list_item, row, text, text_input, toggle};