- Viewer: send step images as temp files instead of base64 (dead send_json call removed; no history/WebSocket bloat)
- Sampler: early stop returns the latest x0 and always saves the stop step; PSNR inf counts as converged
- Sampler: ignore auto_stop when stop_threshold is unsuitable for PSNR/SSIM (avoids stopping at step 2)
- Sampler: keep step images as uint8 in a local list; pop downscale_ratio_spacial; compat with older fix_empty_latent_channels
- Fix display name mapping for the sampler node
- Viewer JS: larger slider handle/track, wheel and keyboard stepping, clear timer on node removal, validate play speed
- README: fix typos and document threshold semantics / controls
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
