Fixed: Preserve embedded ICC color profiles when converting and resizing images

Image.open() reads the source's ICC profile into img.info, but that dict resets to empty after convert() or resize(), and save() was never passing icc_profile anyway. DCI-P3 and Rec.2020 photos were silently falling back to sRGB interpretation once processed.

src/py/builder/image_processor.py

@@ -11,6 +11,7 @@ def convert_and_resize_image(input_path, output_path, resize=True, max_width=114
             return
 
         img = Image.open(input_path)
+        icc_profile = img.info.get("icc_profile")
         if img.mode != "RGB":
             img = img.convert("RGB")
 
@@ -27,7 +28,10 @@ def convert_and_resize_image(input_path, output_path, resize=True, max_width=114
         if fmt == "JPEG":
             output_path = output_path.with_suffix(".jpg")
 
-        img.save(output_path, fmt, quality=90 if fmt == "JPEG" else 100)
+        save_kwargs = {"quality": 90 if fmt == "JPEG" else 100}
+        if icc_profile:
+            save_kwargs["icc_profile"] = icc_profile
+        img.save(output_path, fmt, **save_kwargs)
         logging.info(f"[✓] Processed image: {input_path} → {output_path}")
 
     except Exception as e: