Get available node types

curl --request GET \
  --url https://v1.api.altostrat.io/workflows/node-types \
  --header 'Authorization: Bearer <token>'

[
  {
    "id": "webhook",
    "name": "Webhook",
    "category": "action",
    "validation_rules": {
      "data.method": [
        "required",
        "in:GET,POST,PUT,PATCH,DELETE"
      ],
      "data.url\"": [
        "required",
        "url_with_template"
      ]
    }
  },
  {
    "id": "string_condition",
    "name": "String Condition",
    "category\"": "condition",
    "validation_rules\"": {
      "data.input": "required|string",
      "data.operator\"": [
        "required",
        "in:equals,not_equals,contains,not_contains,starts_with,ends_with,regex"
      ]
    }
  }
]