Update app.py

app.py

@@ -285,7 +285,7 @@ async def face_swap_api(
         src_key = f"bikini-theme/source/{uuid.uuid4().hex}_{source.filename}"
         upload_to_spaces(src_bytes, src_key, content_type=source.content_type)
 
-        target_filename = f"{target_category_id}.jpg"
+        target_filename = f"{target_category_id}.png"
         target_url = f"https://{DO_SPACES_BUCKET}.{DO_SPACES_REGION}.digitaloceanspaces.com/bikini-theme/target/{target_filename}"
 
         resp = requests.get(target_url)