lottie_animation_from_data uses 'key' as a cache key for parsed models.
All LottieIcon instances were created with key="", causing rlottie's
model cache to return the first loaded animation for all subsequent
requests. Only visible on Windows where rlottie cache is enabled by
default.
Fix: pass unique animPath as key to each LottieIcon constructor.
Also replaced fprintf(stderr) diag with GUI_INFO logging via
AnimTimer::logRegisteredIcons() in debug_ui.h.
- AnimTimer::shutdown(): stop QTimer, clear m_icons before icon destruction
- ~MainWindow: AnimTimer::shutdown() -> cleanupAnimations() (correct order)
- main: replace ExitProcess with TerminateProcess(GetCurrentProcess,0)
TerminateProcess skips DLL_PROCESS_DETACH, avoiding libwinpthread
pthread_join hang on rlottie/miniaudio threads.
rlottie C API has no global shutdown - internal RleTaskScheduler threads
cannot be stopped through public API. Same for miniaudio WASAPI threads.
All owned resources already freed before TerminateProcess.
Evgeny