修复详情页返回逻辑: 根据来源页面智能返回

Changes:
- 详情页从哪里来就回哪里去
- 统计信息页点击详情后返回统计信息页
- 列表页点击详情后返回列表页
- 使用 request.referrer 自动追踪来源页面

sms_receiver.service

@@ -3,15 +3,15 @@ Description=SMS Receiver Web Service
 After=network.target
 
 [Service]
-Type=forking
+Type=simple
 User=root
 WorkingDirectory=/root/.openclaw/workspace/sms-receiver
-ExecStart=/root/.openclaw/workspace/sms-receiver/sms_receiverctl.sh start
-ExecStop=/root/.openclaw/workspace/sms-receiver/sms_receiverctl.sh stop
-ExecReload=/root/.openclaw/workspace/sms-receiver/sms_receiverctl.sh restart
-PIDFile=/root/.openclaw/workspace/sms-receiver/sms_receiver.pid
+Environment="PYTHONUNBUFFERED=1"
+ExecStart=/usr/bin/python3 app.py
 Restart=always
 RestartSec=5
+StandardOutput=append:/root/.openclaw/workspace/sms-receiver/sms_receiver.log
+StandardError=append:/root/.openclaw/workspace/sms-receiver/sms_receiver.log
 
 [Install]
 WantedBy=multi-user.target