fix: prevent tray click event listener from being added multiple times

- Remove existing listener before adding to ensure only one instance
- Prevents memory leak from repeated state transitions
- Ensures click handler is called exactly once per click

This fixes a potential memory leak where tray click listeners could
accumulate on repeated RUNNING state transitions. Each state change
to RUNNING would add a new listener without removing the old one,
leading to multiple stopRun() calls per click and gradual memory growth.

The fix uses defensive programming: always remove the listener before
adding it, ensuring exactly one listener is active regardless of how
many times the state transitions.

Severity: Medium-High (6-7/10)
Impact: Prevents memory leak and duplicate event handling

Author: cxybd

apps/ui-tars/src/main/tray.ts

@@ -42,6 +42,7 @@ export async function createTray() {
       // 根据状态添加或移除点击事件监听
       if (state.status === StatusEnum.RUNNING) {
         tray?.setImage(pauseIcon);
+        tray?.removeListener('click', handleTrayClick);
         tray?.on('click', handleTrayClick);
       } else {
         tray?.setImage(normalIcon);