gui: use Shortcut for ESC key instead of Keys handler

- Keys.onEscapePressed doesn't fire when child items have focus
- Shortcut element provides proper global key handling
- Added console.log debugging to track ESC activation and activeState

gui/main.qml

@@ -59,10 +59,16 @@ ApplicationWindow {
     palette.disabled.light: theme.lightColor
     palette.disabled.shadow: theme.shadowColor
 
-    Keys.onEscapePressed: {
-        if (ollie.activeState !== "idle") {
-            event.accepted = true
-            ollie.interrupt()
+    Shortcut {
+        sequence: "Escape"
+        onActivated: {
+            console.log("ESC shortcut, activeState:", ollie.activeState)
+            if (ollie.activeState !== "idle") {
+                console.log("ESC: calling interrupt()")
+                ollie.interrupt()
+            } else {
+                console.log("ESC: ignored (idle)")
+            }
         }
     }