curl -X POST https://api.rapidcall.ai/api/agents/g4d3cXIpDr/workflow/publish \
  -H "Authorization: Bearer YOUR_TOKEN"

{
  "message": "Workflow published successfully.",
  "publishedAt": "2026-04-01T12:30:00Z"
}

{
  "error": "Workflow has validation errors and cannot be published.",
  "errors": [
    { "nodeId": "node_5", "message": "Node is not connected to any edge." }
  ]
}