Get activity registry

curl --request GET \
  --url https://workflow-app.thena.ai/api/v1/workflows/registry/activities \
  --header 'x-api-key: <api-key>'

{
  "results": [
    {
      "uid": "<string>",
      "description": "<string>",
      "name": "<string>",
      "uniqueIdentifier": "<string>",
      "version": 123,
      "source": "platform_app",
      "requestSchema": {},
      "responseSchema": {},
      "metadata": {},
      "compensationActivity": {}
    }
  ]
}