ssionStorage.setItem("user_id", uid);
          }
          return uid;
        }

        const userId = getUserId();
        console.log("Your user_id is", userId);
        // DOM元素
        const startBtn = document.getElementById('startBtn');
        const stopBtn = document.getElementById('stopBtn');
        const interruptBtn = document.getElementById('interruptBtn');
        const logToggle = document.getElementById('logToggle');
        const statusIndicator = document.querySelector('.status-indi