#32456 [Bug]: Bedrock Stability style-transfer is unusable via /v1/images/edits; no working channel for the required style_image
### Check for existing issues
- [x] I have searched the existing issues and checked that my issue is not a duplicate
Closest existing items, all distinct from this one: #18650 (closed) reported three other Bedrock Stability image-edit problems (the `image_edit` vs `image_edits` registry mode, and the handler treating the transform's tuple return as a dict), not the second-image gap; #26552 (open) and its PR #26633 concern `/v1/images/edits` with a `mask` against OpenAI failing with `httpx.RequestNotRead`, a different provider and a different point in the flow, though it is the same fragile multipart image-edit surface
### What happened?
Bedrock Stability's style-transfer operation (`stability.stable-style-transfer-v1:0`) requires two images: the content image and a separate `style_image`. LiteLLM's OpenAI-compatible image-edit surface has no working way to pass that second image, so the operation cannot be driven at all. The other twelve Stability edit/control operations (inpaint, outpaint, erase-object, remove-background, search-recolor, search-replace, control-sketch, control-structure, style-guide, and the three upscales) work end to end and track cost correctly on the same …