xammen7/29/2026, 5:51:08 AM

Resolves glitchy popup behavior reported by users:

- Added popup/flyout coordination to prevent conflicts
- Increased hide timer from 300ms to 800ms for better stability
- Implemented 20px mouse tolerance zone around popup
- Improved media session selection to prioritize playing sessions
- Fixed thumbnail cache invalidation on session changes

Changes:
- App.xaml.cs: Popup closes before flyout opens, blocks popup when flyout is open
- MediaPopupWindow.xaml.cs: 800ms timer, 20px tolerance zone, double-check before closing
- MediaSessionService.cs: Prioritize Playing sessions, invalidate thumbnail cache on session change

Tested: All scenarios pass including multi-player selection and mouse movement stability.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>

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