Fix Replicate image-to-image compatibility with different model schemas (#3749)
Pass the input image in multiple payload keys (image, images, input_image,
input_images) to support different Replicate models that expect the image
in different keys.
Similar to: https://github.com/huggingface/huggingface.js/pull/1938
Co-authored-by: Cursor Agent <cursoragent@cursor.com>