Add hands-free PWA mode and systemd service

deploy/opensquared-assistant.service

@@ -0,0 +1,14 @@
+[Unit]
+Description=OpenSquared Assistant PWA
+After=network.target
+
+[Service]
+WorkingDirectory=/root/openbot
+EnvironmentFile=/root/openbot/.env
+ExecStart=/root/openbot/.venv/bin/gunicorn -w 2 -b 0.0.0.0:8080 app:app
+Restart=always
+RestartSec=3
+User=root
+
+[Install]
+WantedBy=multi-user.target