feat(display): windows: full-screen, F1 cycles, OS bar (names, front, user); canvas-only (display-owned buffers, 4 max, reused); launchers OPEN (pm per app, terminal own), window caps minted by display; FORGET on launcher death via init courier; raster crate (font, chunked text); F-keys in input; terminal+snake on canvas; REDRAW gone

crates/drivers/input/virtio/src/keymap.rs

@@ -37,6 +37,8 @@ pub fn key(code: u16, shift: bool) -> Option<Key> {
         105 => Some(Key::Left),
         106 => Some(Key::Right),
         43 => Some(Key::Char(if shift { b'|' } else { b'\\' })),
+        59..=68 => Some(Key::Function((code - 58) as u8)),
+        87 | 88 => Some(Key::Function((code - 76) as u8)),
         _ => None,
     };
     named.or_else(|| {
@@ -52,6 +54,13 @@ pub fn key(code: u16, shift: bool) -> Option<Key> {
 mod tests {
     use super::*;
 
+    #[test]
+    fn function_keys_are_numbered() {
+        assert_eq!(key(59, false), Some(Key::Function(1)));
+        assert_eq!(key(68, false), Some(Key::Function(10)));
+        assert_eq!(key(88, true), Some(Key::Function(12)));
+    }
+
     #[test]
     fn ctrl_letters_are_control_characters() {
         assert_eq!(with_ctrl(Key::Char(b'c')), Key::Char(3));