Fast inpaint with cropping (Flux Klein 4b, 9b, etc)

Basic inpaint workflow with nodes for cropping the input image. Instead of pushing the entire image into the VRAM, it only puts 512x512 there (or more if the mask is large). Klein 4b does this in seconds, instead of tens of seconds. On the 9b model the speed increase is also noticeable.
If desired, it can be used on any other model (Qwen, ZiT).