Adding ticket generation and booking for staff employees logic

apps/edr-passenger-api/prisma/schema.prisma

@@ -550,6 +550,8 @@ model Booking {
   paidAt                    DateTime?
   paymentReminderSentAt     DateTime?
   packageDepartureStationId String?
+  payToken                  String?               @unique
+  payTokenExpiresAt         DateTime?
   createdAt                 DateTime              @default(now())
   updatedAt                 DateTime              @updatedAt
   passenger                 Passenger             @relation(fields: [passengerId], references: [id])