fix: remove non-existent GET persons endpoint from crowd list detail panel

The backend only has POST (add) and DELETE (remove) for crowd list
persons — no GET to list them. Reworked the detail panel to show
person count from the crowd list data instead of fetching individual
persons.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

apps/app/src/composables/api/useCrowdLists.ts

@@ -2,7 +2,6 @@ import { useMutation, useQuery, useQueryClient } from '@tanstack/vue-query'
 import type { Ref } from 'vue'
 import { apiClient } from '@/lib/axios'
 import type { CrowdList, CreateCrowdListDto, UpdateCrowdListDto } from '@/types/crowdList'
-import type { Person } from '@/types/person'
 
 interface ApiResponse<T> {
   success: boolean
@@ -24,20 +23,6 @@ export function useCrowdLists(eventId: Ref<string>) {
   })
 }
 
-export function useCrowdListPersons(eventId: Ref<string>, listId: Ref<string>) {
-  return useQuery({
-    queryKey: ['crowd-lists', eventId, 'persons', listId],
-    queryFn: async () => {
-      const { data } = await apiClient.get<{ data: Person[] }>(
-        `/events/${eventId.value}/crowd-lists/${listId.value}/persons`,
-      )
-
-      return data.data
-    },
-    enabled: () => !!eventId.value && !!listId.value,
-  })
-}
-
 export function useCreateCrowdList(eventId: Ref<string>) {
   const queryClient = useQueryClient()