After a lost device the next start began from on_exit, while eframe was
still writing app.ron, and the old process then hung in
vkDestroySwapchainKHR on NVIDIA. Start it from Drop for App instead, after
eframe has joined the settings save and before it drops the window's GPU
surface, and end the process there after a loss. The update restart moves
there too. The loss reason is passed to the next start and shown in its
note.
Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>
froglemonade2andClaude Opus 5.5
fc499441e2