curl --request GET \
  --url https://api.dualship.run/api/v1/billing \
  --header 'Authorization: Bearer <token>'

{
  "limits": {
    "additional_seat_price": 123,
    "executions_per_month": 123,
    "flows": 123,
    "included_seats": 123,
    "log_retention_days": 123,
    "workspaces": 123
  },
  "plan": {
    "features": [
      {
        "key": "<string>",
        "label": "<string>"
      }
    ],
    "id": "<string>",
    "interval": "<string>",
    "name": "<string>",
    "price": 123,
    "slug": "<string>"
  },
  "subscription": {
    "cancel_at_period_end": true,
    "current_period_end": "<string>",
    "status": "<string>",
    "trial_end": "<string>"
  },
  "usage": {
    "executions": 123,
    "flows": 123
  }
}