fix(tests): initialize QA handoff state in Windows coordinator fixture

openless-all/app/src-tauri/src/coordinator/hotkey_loops.rs

@@ -2353,6 +2353,7 @@ pub(crate) mod windows_less_computer_tests {
             backend,
             less_computer_voice: Mutex::new(None),
             settings_host_gate: Mutex::new(()),
+            overlay_qa_handoff: tokio::sync::Mutex::new(()),
             inserter: TextInserter::new(),
             vocab_card_visible: AtomicBool::new(false),
             hotkey: Mutex::new(None),