feat(bookings): implement ticket receipts and seat sharing system

Add receipt tokens and booking_seats table to track individual tickets
Create receipt and seat view pages with QR code generation

app/pages/confirmation/[token].vue

@@ -35,6 +35,7 @@ const booking = ref(initialBooking)
 const statusColor = computed(() => booking.value.status === 'confirmed' ? 'success' : 'warning')
 const ticketLabel = computed(() => getTicketCatalogItem(booking.value.ticketType)?.label || booking.value.ticketType.toUpperCase())
 const totalFormatted = computed(() => formatBookingCurrency(booking.value.totalPrice))
+const receiptPath = computed(() => `/receipt/${booking.value.receiptToken}`)
 const detailRows = computed(() => {
   const rows = [
     {
@@ -194,6 +195,16 @@ async function confirmBooking() {
             class="justify-center"
           />
 
+          <UButton
+            v-if="booking.status === 'confirmed'"
+            :to="receiptPath"
+            label="Open Ticket Receipt"
+            color="neutral"
+            variant="outline"
+            icon="i-lucide-receipt"
+            class="justify-center"
+          />
+
           <UButton
             label="Confirm This Booking"
             icon="i-lucide-check-check"