Convertir réellement les images au format JPEG annoncé à API

chatbot.py

@@ -199,13 +199,10 @@ def resize_image(image_bytes, attachment_filename=None):
     """Redimensionne l'image selon le mode spécifié."""
 
     with Image.open(BytesIO(image_bytes)) as img:
-        original_format = img.format  # Stocker le format original
-
         img.thumbnail((2000, 2000))
 
         buffer = BytesIO()
-        img_format = img.format or _infer_image_format(attachment_filename)
-        img.save(buffer, format=img_format)
+        img.convert("RGB").save(buffer, format="JPEG")
 
         return buffer.getvalue()