切换菜单栏形式前停止旧动画

[1254455745]

这个 PR 优化菜单栏展示形式切换时的动画状态清理。

改动内容：

• 切换滚动、轮播、固定等菜单栏形式前停止旧视图动画。
• 避免旧动画状态残留到新视图。
• 补充统一的动画失效接口。

验证：

• 单独分支构建通过。

[pullfrog]

✅ 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.

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