curl --request GET \
  --url https://app.autoposting.ai/api-proxy/teams/groups \
  --header 'Authorization: Bearer <token>'

{
  "success": true,
  "data": [
    {
      "id": "group_01HXYZ",
      "name": "Content Editor",
      "permissions": [
        "posts:read",
        "posts:write",
        "brands:read"
      ],
      "memberCount": 0
    }
  ]
}