export function validateDashboard(d) {
  if (!d) throw new Error("dashboard_view missing");
  
  if (!d.marketTitle) {
    throw new Error("dashboard_view.marketTitle missing");
  }
  
  if (!d.marketSummary) {
    throw new Error("dashboard_view.marketSummary missing");
  }
  
  // Basic validation only
  if (!Array.isArray(d.marketSegments)) {
    throw new Error("dashboard_view.marketSegments must be array");
  }
}