新增 systemd 单元文件与部署说明（含 cookie 刷新守护调度）

systemd/pixiv.service

@@ -0,0 +1,18 @@
+[Unit]
+Description=Pixiv Image Proxy Service
+After=network-online.target
+Wants=network-online.target
+
+[Service]
+Type=simple
+User=root
+WorkingDirectory=/home/openapi/source/pixiv
+Environment=PATH=/home/openapi/env/general/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin
+ExecStart=/home/openapi/env/general/bin/python /home/openapi/source/pixiv/pixiv.py
+Restart=always
+RestartSec=5
+StandardOutput=append:/var/log/pixiv.log
+StandardError=append:/var/log/pixiv.log
+
+[Install]
+WantedBy=multi-user.target