CPythonNetworkStream::GamePhase throttles RefreshInventory/RefreshSafebox to
one call per 300 ms, so the bag slot could still be empty in the UI when the
test clicked it right after player state changed (~1 in 3 runs failed).
Also drops a leftover debug printf from CWindowManager::RunMouseMove.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>