docs: add dedicated ComfyUI loader requirements (ComfyUI-HSWQ-Loader-and-Tools)

docs: remove HSWQ references and correct ControlNet ConvRot INT8 model card

docs: update ControlNet ConvRot INT8 model card

Upload Qwen-Image-2512-Fun-Controlnet-Union-2602_convrot_int8.safetensors

initial commit