curl --request GET \
  --url https://app.puffle.ai/api/workflows/{id}/nodes \
  --header 'Authorization: Bearer <token>'

{
  "nodes": [
    {
      "id": "<string>",
      "workflow_id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
      "type": "<string>",
      "label": "<string>",
      "config": {},
      "position_x": 123,
      "position_y": 123
    }
  ],
  "edges": [
    {
      "id": "<string>",
      "workflow_id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
      "source_node_id": "<string>",
      "target_node_id": "<string>",
      "source_handle": "<string>",
      "target_handle": "<string>",
      "condition": {}
    }
  ]
}