Refactor UI structure and add arbitrary types support

src/tasks/images/sd.py

@@ -61,15 +61,24 @@ class SDReq(BaseModel):
     vae: bool = True
     controlnet_config: Optional[ControlNetReq] = None
     photomaker_images: Optional[List[Image.Image]] = None
+    
+    class Config:
+        arbitrary_types_allowed=True
 
 
 class SDImg2ImgReq(SDReq):
     image: Image.Image
     strength: float = 1.0
+    
+    class Config:
+        arbitrary_types_allowed=True
 
 
 class SDInpaintReq(SDImg2ImgReq):
     mask_image: Image.Image
+    
+    class Config:
+        arbitrary_types_allowed=True
 
 
 # Helper functions