security: A01-13 — nest all event routes under organisation prefix

Move all authenticated organiser-facing event sub-resource routes from
/events/{event}/... to /organisations/{organisation}/events/{event}/...
to enforce multi-tenancy at the routing layer.

Changes:
- Routes: restructured api.php to nest all event sub-resources under
  the existing organisation prefix group
- Controllers: added Organisation parameter and VerifiesOrganisationEvent
  trait to all 12 affected controllers (sections, time-slots, shifts,
  persons, crowd-lists, locations, shift-assignments, registration-fields,
  availabilities, field-values, section-preferences, stats)
- Tests: updated all 20 feature test files with new route paths
- Frontend: updated 8 API composables and 20 Vue components/pages
- API.md: updated documentation to reflect new route structure

Portal routes, public routes (volunteer-register), and invitation routes
remain unchanged as they operate without organisation context.

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

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

@@ -24,6 +24,7 @@ interface PaginatedResponse<T> {
 }
 
 export function usePersonList(
+  orgId: Ref<string>,
   eventId: Ref<string>,
   filters?: Ref<{ crowd_type_id?: string; status?: string }>,
 ) {
@@ -37,37 +38,37 @@ export function usePersonList(
         params.status = filters.value.status
 
       const { data } = await apiClient.get<PaginatedResponse<Person>>(
-        `/events/${eventId.value}/persons`,
+        `/organisations/${orgId.value}/events/${eventId.value}/persons`,
         { params },
       )
 
       return data
     },
-    enabled: () => !!eventId.value,
+    enabled: () => !!orgId.value && !!eventId.value,
   })
 }
 
-export function usePersonDetail(eventId: Ref<string>, id: Ref<string>) {
+export function usePersonDetail(orgId: Ref<string>, eventId: Ref<string>, id: Ref<string>) {
   return useQuery({
     queryKey: ['persons', eventId, 'detail', id],
     queryFn: async () => {
       const { data } = await apiClient.get<ApiResponse<Person>>(
-        `/events/${eventId.value}/persons/${id.value}`,
+        `/organisations/${orgId.value}/events/${eventId.value}/persons/${id.value}`,
       )
 
       return data.data
     },
-    enabled: () => !!eventId.value && !!id.value,
+    enabled: () => !!orgId.value && !!eventId.value && !!id.value,
   })
 }
 
-export function useCreatePerson(eventId: Ref<string>) {
+export function useCreatePerson(orgId: Ref<string>, eventId: Ref<string>) {
   const queryClient = useQueryClient()
 
   return useMutation({
     mutationFn: async (payload: CreatePersonPayload) => {
       const { data } = await apiClient.post<ApiResponse<Person>>(
-        `/events/${eventId.value}/persons`,
+        `/organisations/${orgId.value}/events/${eventId.value}/persons`,
         payload,
       )
 
@@ -79,13 +80,13 @@ export function useCreatePerson(eventId: Ref<string>) {
   })
 }
 
-export function useUpdatePerson(eventId: Ref<string>) {
+export function useUpdatePerson(orgId: Ref<string>, eventId: Ref<string>) {
   const queryClient = useQueryClient()
 
   return useMutation({
     mutationFn: async ({ id, ...payload }: UpdatePersonPayload & { id: string }) => {
       const { data } = await apiClient.put<ApiResponse<Person>>(
-        `/events/${eventId.value}/persons/${id}`,
+        `/organisations/${orgId.value}/events/${eventId.value}/persons/${id}`,
         payload,
       )
 
@@ -98,13 +99,13 @@ export function useUpdatePerson(eventId: Ref<string>) {
   })
 }
 
-export function useApprovePerson(eventId: Ref<string>) {
+export function useApprovePerson(orgId: Ref<string>, eventId: Ref<string>) {
   const queryClient = useQueryClient()
 
   return useMutation({
     mutationFn: async (id: string) => {
       const { data } = await apiClient.post<ApiResponse<Person>>(
-        `/events/${eventId.value}/persons/${id}/approve`,
+        `/organisations/${orgId.value}/events/${eventId.value}/persons/${id}/approve`,
       )
 
       return data.data
@@ -115,12 +116,12 @@ export function useApprovePerson(eventId: Ref<string>) {
   })
 }
 
-export function useDeletePerson(eventId: Ref<string>) {
+export function useDeletePerson(orgId: Ref<string>, eventId: Ref<string>) {
   const queryClient = useQueryClient()
 
   return useMutation({
     mutationFn: async (id: string) => {
-      await apiClient.delete(`/events/${eventId.value}/persons/${id}`)
+      await apiClient.delete(`/organisations/${orgId.value}/events/${eventId.value}/persons/${id}`)
     },
     onSuccess: () => {
       queryClient.invalidateQueries({ queryKey: ['persons', eventId.value] })