Get lifecycle stage definitions

curl --request GET \
  --url https://app.dacard.ai/api/lifecycle/stages

[
  {
    "id": "<string>",
    "name": "Discover",
    "description": "<string>",
    "order": 123,
    "tasks": [
      {
        "id": "<string>",
        "label": "<string>",
        "description": "<string>"
      }
    ]
  }
]