Tree selector improvements: active line highlight and tool filter

- Add inverse background highlight for selected/active line
- Add 'no-tools' filter mode to hide tool results
- Add isShiftCtrlO to cycle filters backwards
- Filter order: default → no-tools → user-only → labeled-only → all

packages/tui/src/index.ts

@@ -51,6 +51,7 @@ export {
 	isEscape,
 	isHome,
 	isShiftCtrlD,
+	isShiftCtrlO,
 	isShiftCtrlP,
 	isShiftEnter,
 	isShiftTab,