curl --request GET \
  --url 'https://zeus-api.agentspro.cn/node/session/sess_456?user_id=user_123'

{
  "session_id": "sess_456",
  "node_id": "node_abc",
  "node": {
    "node_id": "node_abc",
    "node_type": "extension",
    "node_name": "Chrome Extension",
    "status": "online",
    "is_connected": true
  },
  "requires_selection": false,
  "available_nodes": []
}

{
  "session_id": "sess_456",
  "node_id": null,
  "node": null,
  "requires_selection": true,
  "available_nodes": [
    { "node_id": "node_1", "node_name": "Chrome - Work", "is_connected": true },
    { "node_id": "node_2", "node_name": "Chrome - Personal", "is_connected": true }
  ]
}