Enhance duplicate detection with sales/admin access and field updates

- Extend duplicate detection access from admin-only to sales/admin users
- Update field names for better clarity (Email → Email Address, etc.)
- Add duplicate notification banner to expenses page
- Improve authorization checks with role-based access control

server/utils/nocodb.ts

@@ -1,5 +1,16 @@
 import type { Interest, Berth, Expense, ExpenseFilters } from "@/utils/types";
 
+// Data normalization functions
+export const normalizePersonName = (name: string): string => {
+  if (!name) return 'Unknown';
+  
+  // Trim whitespace and normalize case
+  return name.trim()
+    .split(' ')
+    .map(word => word.charAt(0).toUpperCase() + word.slice(1).toLowerCase())
+    .join(' ');
+};
+
 export interface PageInfo {
   pageSize: number;
   totalRows: number;