Implement zero terminal SNR noise schedule option

handle selectable script_index is None

Add utility to inspect a model's dtype/device

Adding negative prompts to Loras in extra networks

Deduplicate tiled inference code from SwinIR/ScuNET

Be more clear about Spandrel model nomenclature and types

Bump numpy to 1.26.2

Correct RealESRGAN expected architecture type to ESRGAN

Remove `cleanup_models` code

Soften Spandrel model-architecture check to just a warning

Drop basicsr dependency

fix API thread safe issues of txt2img and img2img