Three fixes for the Windows MSI first-launch failure:
1. **backend_log_path() was macOS-only** — used $HOME + Library/Logs
which doesn't exist on Windows. Now uses %LOCALAPPDATA% on Windows,
~/Library/Logs on macOS, and XDG_STATE_HOME on Linux. Without this,
stdout/stderr went to Stdio::null() and all backend crash output was
silently lost.
2. **Add TORCHDYNAMO_DISABLE=1 on Windows** — prevents PyTorch from
trying to download Triton (which has no Windows support), avoiding a
hang during first torch.compile() call (#26 workaround).
3. **Increase health timeout from 180s to 300s** — first-run PyTorch
import on Windows can take 120+ seconds for CUDA kernel JIT, plus
uv sync + torch + model loading. 3 min wasn't enough.
Fixes#30
Palash Debnath
936e39ece5