fix

api_routes.py

@@ -2775,7 +2775,7 @@ async def upscale_photo(
         original_md5_hash = str(uuid.uuid4()).replace('-', '')
         # 如果前端传递了md5参数则使用，否则使用original_md5_hash
         actual_md5 = md5 if md5 else original_md5_hash
-        upscaled_filename = f"{actual_md5}_upscale.jpg"
+        upscaled_filename = f"{actual_md5}_upscale.webp"
 
         logger.info(f"Starting photo super resolution processing: {file.filename}, size={file.size}, scale={scale}x, model={model_name}, md5={original_md5_hash}")
         t1 = time.perf_counter()