- webkit-app-region doesn't work in WebView2, use Win API instead
- Bind windowDrag() that calls ReleaseCapture + SendMessage(WM_NCLBUTTONDOWN)
- Title bar onmousedown triggers native window drag behavior
- stopPropagation on window control buttons to prevent drag on click
- Window can now be dragged by clicking anywhere on the title bar
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
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