refactor(bookings): simplify capacity tracking to use seats

Replace 'pax' booking mode with 'seat'
Consolidate inventory summary to track only seat counts
Update database schema and UI for seat-centric capacity

server/utils/bookings.ts

@@ -2,7 +2,6 @@ import type { BookingCapacitySettings, BookingMode, PublicBooking, TicketType }
 
 import {
   formatBookingCurrency,
-  getBookingModeLabel,
   getTicketCatalogItem,
   isBookingMode,
   isTicketType
@@ -14,14 +13,14 @@ import { assertBadRequest } from './http'
 export function parseCreateBookingInput(body: {
   customerName?: string
   customerPhone?: string
-  bookingMode?: BookingMode
+  bookingMode?: BookingMode | string | null
   quantity?: number
   ticketType?: TicketType
   personInChargeId?: string
 }) {
   const customerName = normalizeFullName(body.customerName || '')
   const customerPhone = normalizePhoneNumber(body.customerPhone || '')
-  const bookingMode = body.bookingMode
+  const bookingMode = typeof body.bookingMode === 'string' ? body.bookingMode.trim().toLowerCase() : body.bookingMode
   const ticketType = body.ticketType
   const quantity = Number(body.quantity)
   const personInChargeId = (body.personInChargeId || '').trim()
@@ -52,10 +51,8 @@ export function buildBookingMessage(booking: PublicBooking, confirmationUrl: str
     '',
     `Name: ${booking.customerName}`,
     `Phone Number: ${booking.customerPhone}`,
-    `Booking Mode: ${getBookingModeLabel(booking.bookingMode)}`,
-    `Quantity: ${booking.quantity}`,
+    `Seats: ${booking.seatCount}`,
     `Ticket Category: ${ticketLabel}`,
-    `Seats Covered: ${booking.seatCount}`,
     `Total Price: ${formatBookingCurrency(booking.totalPrice)}`,
     '',
     'PIC confirmation link:',
@@ -87,14 +84,14 @@ export function parseSeatShareInput(body: {
 }
 
 export function parseBookingCapacityInput(body: {
-  totalTables?: number | string | null
-}): Pick<BookingCapacitySettings, 'totalTables'> {
-  const totalTables = parseOptionalInteger(body.totalTables)
+  totalSeats?: number | string | null
+}): Pick<BookingCapacitySettings, 'totalSeats'> {
+  const totalSeats = parseOptionalInteger(body.totalSeats)
 
-  assertBadRequest(totalTables === null || totalTables >= 0, 'Total tables must be 0 or greater')
+  assertBadRequest(totalSeats === null || totalSeats >= 0, 'Total seats must be 0 or greater')
 
   return {
-    totalTables
+    totalSeats
   }
 }