curl --request GET \
  --url https://api.example.com/api/v1/specs/{spec_id}/architecture \
  --header 'Authorization: Bearer <token>'

[
  {
    "board_id": "<string>",
    "created_at": "2023-11-07T05:31:56Z",
    "id": "<string>",
    "parent_id": "<string>",
    "title": "<string>",
    "updated_at": "2023-11-07T05:31:56Z",
    "version": 123,
    "adapter_payload_refs": [
      "<string>"
    ],
    "breaking_change_flag": false,
    "diagrams_count": 0,
    "requires_arch_review": false,
    "source_ref": "<string>",
    "source_version": 123,
    "stale": false
  }
]