Get Account Research Link

curl "https://api.clustr-ai.com/api/public/account-research-link?company_linkedin_url=https://www.linkedin.com/company/acme-corp/" \
  -H "Authorization: Bearer YOUR_API_KEY"

{
  "success": true,
  "data": {
    "magic_link": "https://app.clustr-ai.com/shared/a1b2c3d4-..."
  }
}

{
  "success": false,
  "error": {
    "message": "Invalid or missing company_linkedin_url",
    "code": "BAD_REQUEST"
  }
}