feat : upgrade jpg format

app.py

@@ -136,7 +136,7 @@ async def predict( request: Request, response: Response ):
         file_path = os.path.join(STATIC_DIR, base_name)
 
         # 5️⃣ 儲存到 static
-        result.save(file_path, format="jpg")
+        result.save(file_path, format="JPEG")
 
         # 6️⃣ 回傳前端可取用的 URL
         file_url_return = str(request.base_url) + f"static/{base_name}"