Initial commit: Due Diligence Tracker project

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

client/src/utils/exportUtils.ts

@@ -0,0 +1,76 @@
+import { DataService } from '../services/dataService';
+
+export const exportToJSON = (dataService: DataService): void => {
+  const dimensions = dataService.getDimensions();
+  const exportData = {
+    dimensions: dimensions.map(dimension => ({
+      ...dimension,
+      kpis: dataService.getKPIsByDimension(dimension.id).map(kpi => ({
+        ...kpi,
+        checks: dataService.getChecksByKPI(kpi.id)
+      }))
+    })),
+    exportedAt: new Date().toISOString()
+  };
+
+  const blob = new Blob([JSON.stringify(exportData, null, 2)], {
+    type: 'application/json'
+  });
+  
+  const url = URL.createObjectURL(blob);
+  const link = document.createElement('a');
+  link.href = url;
+  link.download = `due-diligence-export-${new Date().toISOString().split('T')[0]}.json`;
+  document.body.appendChild(link);
+  link.click();
+  document.body.removeChild(link);
+  URL.revokeObjectURL(url);
+};
+
+export const exportToCSV = (dataService: DataService): void => {
+  const dimensions = dataService.getDimensions();
+  const rows: string[] = [
+    'Dimension,KPI,Check Question,Check Type,Current Value,Expected Value,Is Completed,Reference URL,Comment,Created At'
+  ];
+
+  dimensions.forEach(dimension => {
+    const kpis = dataService.getKPIsByDimension(dimension.id);
+    kpis.forEach(kpi => {
+      const checks = dataService.getChecksByKPI(kpi.id);
+      checks.forEach(check => {
+        const row = [
+          escapeCSV(dimension.name),
+          escapeCSV(kpi.name),
+          escapeCSV(check.question),
+          escapeCSV(check.check_type),
+          escapeCSV(check.current_value || ''),
+          escapeCSV(check.expected_value || ''),
+          check.is_completed ? 'Yes' : 'No',
+          escapeCSV(check.reference_url || ''),
+          escapeCSV(check.comment || ''),
+          escapeCSV(check.created_at || '')
+        ].join(',');
+        rows.push(row);
+      });
+    });
+  });
+
+  const csvContent = rows.join('\n');
+  const blob = new Blob([csvContent], { type: 'text/csv' });
+  
+  const url = URL.createObjectURL(blob);
+  const link = document.createElement('a');
+  link.href = url;
+  link.download = `due-diligence-export-${new Date().toISOString().split('T')[0]}.csv`;
+  document.body.appendChild(link);
+  link.click();
+  document.body.removeChild(link);
+  URL.revokeObjectURL(url);
+};
+
+const escapeCSV = (value: string): string => {
+  if (value.includes(',') || value.includes('"') || value.includes('\n')) {
+    return `"${value.replace(/"/g, '""')}"`;
+  }
+  return value;
+};