fix(activities): MyTickets tab pills + group header count seats not rows

Last commit fixed the dialog + ActivityDetailPage to read extra.quantity,
but missed three more row-count → seat-count surfaces in
MyTicketsPage:

- Tab pills (All / Paid / Pending / Registered) used
  `paidTickets.length` etc. on the filtered row arrays — so a user
  who bought 1+5+5+6+3+1+1+1 = 23 seats across 8 rows saw "All
  (8)". Now reads from useUserTickets.{total,paid,pending,
  registered}Seats which sum extra.quantity.
- Group header badge "{{ group.tickets.length }} tickets" → uses
  group.paidCount + pendingCount (already seat-summed by the
  previous fix to groupedTickets).
- Group description gains a "({N} purchases)" sub-line when seats
  ≠ rows so the buyer can see at a glance "you have 23 tickets
  across 8 purchases".
- Per-row carousel card grows a `×N` chip next to the truncated
  Ticket #ID when that row represents multi-seat — same chip
  language as the ActivityDetailPage owned-tickets section.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

src/modules/activities/composables/useUserTickets.ts

@@ -66,6 +66,21 @@ export function useUserTickets() {
     return sortedTickets.value.filter(ticket => ticket.paid && !ticket.registered)
   })
 
+  // Seat counts (sum extra.quantity across rows) so the tab pills
+  // surface "what the buyer bought" rather than "how many purchase
+  // rows are in the database". A multi-ticket purchase is one row
+  // with extra.quantity = N seats.
+  function seatsOnRow(t: ActivityTicket): number {
+    return Math.max(1, t.extra?.quantity ?? 1)
+  }
+  function sumSeats(arr: ActivityTicket[]): number {
+    return arr.reduce((total, t) => total + seatsOnRow(t), 0)
+  }
+  const totalSeats = computed(() => sumSeats(sortedTickets.value))
+  const paidSeats = computed(() => sumSeats(paidTickets.value))
+  const pendingSeats = computed(() => sumSeats(pendingTickets.value))
+  const registeredSeats = computed(() => sumSeats(registeredTickets.value))
+
   const groupedTickets = computed(() => {
     const groups = new Map<string, GroupedTickets>()
 
@@ -119,6 +134,11 @@ export function useUserTickets() {
     registeredTickets,
     unregisteredTickets,
     groupedTickets,
+    totalSeats,
+    paidSeats,
+    pendingSeats,
+    registeredSeats,
+    seatsOnRow,
     isLoading,
     error,
     refresh: loadTickets,

src/modules/activities/views/MyTicketsPage.vue

@@ -17,6 +17,11 @@ const {
   pendingTickets,
   registeredTickets,
   groupedTickets,
+  totalSeats,
+  paidSeats,
+  pendingSeats,
+  registeredSeats,
+  seatsOnRow,
   isLoading,
   error,
   refresh
@@ -158,10 +163,10 @@ onMounted(async () => {
     <div v-else-if="tickets.length > 0">
       <Tabs default-value="all" class="w-full">
         <TabsList class="grid w-full grid-cols-4">
-          <TabsTrigger value="all">All ({{ tickets.length }})</TabsTrigger>
-          <TabsTrigger value="paid">Paid ({{ paidTickets.length }})</TabsTrigger>
-          <TabsTrigger value="pending">Pending ({{ pendingTickets.length }})</TabsTrigger>
-          <TabsTrigger value="registered">Registered ({{ registeredTickets.length }})</TabsTrigger>
+          <TabsTrigger value="all">All ({{ totalSeats }})</TabsTrigger>
+          <TabsTrigger value="paid">Paid ({{ paidSeats }})</TabsTrigger>
+          <TabsTrigger value="pending">Pending ({{ pendingSeats }})</TabsTrigger>
+          <TabsTrigger value="registered">Registered ({{ registeredSeats }})</TabsTrigger>
         </TabsList>
 
         <!-- All Tickets Tab -->
@@ -173,11 +178,14 @@ onMounted(async () => {
                   <div class="flex items-center justify-between">
                     <CardTitle class="text-foreground">Event: {{ group.eventId.slice(0, 8) }}...</CardTitle>
                     <Badge variant="outline">
-                      {{ group.tickets.length }} ticket{{ group.tickets.length !== 1 ? 's' : '' }}
+                      {{ group.paidCount + group.pendingCount }} ticket{{ (group.paidCount + group.pendingCount) !== 1 ? 's' : '' }}
                     </Badge>
                   </div>
                   <CardDescription>
                     {{ group.paidCount }} paid · {{ group.pendingCount }} pending · {{ group.registeredCount }} registered
+                    <span v-if="group.tickets.length !== (group.paidCount + group.pendingCount)" class="block text-xs">
+                      ({{ group.tickets.length }} purchase{{ group.tickets.length !== 1 ? 's' : '' }})
+                    </span>
                   </CardDescription>
                 </CardHeader>
                 <CardContent class="flex-grow">
@@ -217,9 +225,18 @@ onMounted(async () => {
 
                       <div class="space-y-2">
                         <div class="flex items-center justify-between">
-                          <span class="text-sm font-medium">
-                            Ticket #{{ getCurrentTicket(group.tickets, group.eventId).id.slice(0, 8) }}
-                          </span>
+                          <div class="flex items-center gap-1.5">
+                            <span class="text-sm font-medium">
+                              Ticket #{{ getCurrentTicket(group.tickets, group.eventId).id.slice(0, 8) }}
+                            </span>
+                            <Badge
+                              v-if="seatsOnRow(getCurrentTicket(group.tickets, group.eventId)) > 1"
+                              variant="secondary"
+                              class="text-[10px] font-mono px-1.5"
+                            >
+                              ×{{ seatsOnRow(getCurrentTicket(group.tickets, group.eventId)) }}
+                            </Badge>
+                          </div>
                           <Badge :variant="getTicketStatus(getCurrentTicket(group.tickets, group.eventId)).status === 'pending' ? 'secondary' : 'default'">
                             {{ getTicketStatus(getCurrentTicket(group.tickets, group.eventId)).label }}
                           </Badge>