切换菜单栏形式前停止旧动画 - #21

✅ No new issues found.

Reviewed changes — stops ticker animations before swapping views to prevent stale CVDisplayLink callbacks from firing against a replaced view.

• Add invalidateAnimation() to MenuBarTickerView protocol — new protocol requirement that all conforming types implement.
• Implement in TickerView and CarouselTickerView — delegates to existing stopAnimation(), which stops and nils the CVDisplayLink.
• No-op in CompactTickerView and MinimalTickerView — these static views have no animations to invalidate.
• Call from StatusItemController.swapTickerView(to:) — calls invalidateAnimation() before constructing the new view, ensuring the old display link is stopped before it can fire against the old (soon-to-be-released) view.

  ^{｜ View workflow run ｜ Using DeepSeek Flash ｜ 𝕏}