* Update stable-diffusion.cpp to 5900ef6605c6 (new API)
* Clean up pending LoRA code and simplify LoRA changes to upstream
* Move VAE tiling disabling for TAESD to sdtype_adapter.cpp
* Move auxiliary ctx functions to sdtype_adapter.cpp
* Use ref_images parameter for Kontext images
* Drop clip skip workaround (fixed upstream)
* Workaround for flash attention with img2img
leejet/stable-diffusion.cpp#756
* Workaround for Chroma with flash attention, debug prints
* Disable forcing CLIP weights to F32 for reduced memory usage
The recent ggml update added another quant type, GGML_TYPE_MXFP4,
which got the same value as SD_TYPE_COUNT. That made the embedded
sd.cpp quantize to GGML_TYPE_MXFP4 by default.
Photomaker in particular ends up crashing due to
"Missing CPY op for types: f32 mxfp4".
