feat(bookings): add payment and document upload to confirmation page

Allow users to select payment method and upload receipts before confirming.
Add public API endpoints for payment updates and document management.

server/api/public/bookings/[token]/transaction-document.delete.ts

@@ -0,0 +1,33 @@
+import type { UpdateBookingDetailsResponse } from '~~/shared/booking'
+
+import {
+  clearBookingTransactionDocumentByConfirmationToken,
+  getBookingByConfirmationToken
+} from '../../../../utils/booking-repository'
+import { getRequiredRouteParam, httpError } from '../../../../utils/http'
+import { deleteTransactionDocument } from '../../../../utils/transaction-documents'
+
+export default defineEventHandler(async (event): Promise<UpdateBookingDetailsResponse> => {
+  const token = getRequiredRouteParam(event, 'token', 'Confirmation token')
+  const booking = await getBookingByConfirmationToken(token, { includeTransactionDocument: true })
+
+  if (!booking) {
+    httpError(404, 'Booking not found')
+  }
+
+  if (booking.status !== 'pending') {
+    httpError(409, 'Transaction document can only be changed before confirmation')
+  }
+
+  const result = await clearBookingTransactionDocumentByConfirmationToken(token)
+
+  if (!result) {
+    httpError(404, 'Booking not found')
+  }
+
+  await deleteTransactionDocument(result.previousStorageName)
+
+  return {
+    booking: result.booking
+  }
+})