add a way for scripts to register a callback for before/after just a single component's creation

add VAE from main model into infotext, not from refiner model
option to make scripts UI without gr.Group
fix inconsistencies with refiner when usings samplers that do more denoising than steps

Fix color correction by converting image to RGB

Refactor postprocessing/extras tab to use generator to resolve OOM issues

pathc: also disable extensions installer with arg

Make `StableDiffusionProcessingImg2Img.mask_blur` a property, make more inline with PIL `GaussianBlur`

Zoom and pan: Some fixes for the auto-expand

Properly return `None` for VAE hash when using `--no-hashing`

Fix broken `Lora/Networks: use old method` option

Patch #12453

rm dir on failed clone, disable autofix for fetch

initial refiner support

Catch float value error default to -1

save extra networks metadata with indent 

Add env var for cache file

use new style constructor

fix a bug preventing normal operation if a string is added to a gr.Number component via ui-config.json