view data fixes

apps/website/lib/view-data/BillingViewData.ts

@@ -0,0 +1,47 @@
+import { ViewData } from "../contracts/view-data/ViewData";
+
+
+export interface BillingViewData extends ViewData {
+  paymentMethods: Array<{
+    id: string;
+    type: 'card' | 'bank' | 'sepa';
+    last4: string;
+    brand?: string;
+    isDefault: boolean;
+    expiryMonth?: number;
+    expiryYear?: number;
+    bankName?: string;
+    displayLabel: string;
+    expiryDisplay: string | null;
+  }>;
+  invoices: Array<{
+    id: string;
+    invoiceNumber: string;
+    date: string;
+    dueDate: string;
+    amount: number;
+    vatAmount: number;
+    totalAmount: number;
+    status: 'paid' | 'pending' | 'overdue' | 'failed';
+    description: string;
+    sponsorshipType: 'league' | 'team' | 'driver' | 'race' | 'platform';
+    pdfUrl: string;
+    formattedTotalAmount: string;
+    formattedVatAmount: string;
+    formattedDate: string;
+    isOverdue: boolean;
+  }>;
+  stats: {
+    totalSpent: number;
+    pendingAmount: number;
+    nextPaymentDate: string;
+    nextPaymentAmount: number;
+    activeSponsorships: number;
+    averageMonthlySpend: number;
+    formattedTotalSpent: string;
+    formattedPendingAmount: string;
+    formattedNextPaymentAmount: string;
+    formattedAverageMonthlySpend: string;
+    formattedNextPaymentDate: string;
+  };
+}