Issue #41 — Frontend: Invoice TypeScript Type Definitions

[yusuftomilola]

Location: frontend/lib/types/invoice.ts

Description

Before any invoice hooks or pages can be built, the TypeScript interfaces for the invoices feature need to be defined. These types represent the invoice records returned by the API and are shared across the invoices list page, the detail page, and any dashboard stats that reference invoice data.

Acceptance Criteria

• frontend/lib/types/invoice.ts exports:
  • An InvoiceStatus type: "PAID" | "PENDING"
  • An Invoice interface with:
    • id: string
    • invoiceNumber: string
    • amountKobo: number
    • amountNaira: number
    • status: InvoiceStatus
    • paidAt: string | null
    • userId: string
    • bookingId: string
    • paymentId: string | null
    • booking?: Booking (imported from @/lib/types/booking)
    • payment?: Payment (imported from @/lib/types/payment)
    • user?: { id: string; firstname: string; lastname: string; email: string }
    • createdAt: string
    • updatedAt: string
• Only TypeScript interface and type declarations — no runtime code
• npx tsc --noEmit passes with no errors