feat: F016 future availability workspace

2-panel workspace at /supply/future-availability: filterable signal list with FutureSignalCard (type/sensitivity/review badges + mandatory disclaimer) and collapsible detail panel with full evidence, review workflow (IN_REVIEW→APPROVED/REJECTED), shortlist action, and review task creation.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

src/hooks/useFutureSignals.ts

@@ -1,5 +1,6 @@
 import { useQuery, useMutation, useQueryClient } from '@tanstack/react-query'
 import { futureSignalService } from '../services/futureSignalService'
+import type { ReviewStatus } from '../domain/enums'
 import { STALE_SIGNALS } from '../lib/constants'
 
 export function useFutureSignals() {
@@ -11,6 +12,16 @@ export function useFutureSignals() {
   })
 }
 
+export function useFutureSignal(id: string) {
+  return useQuery({
+    queryKey: ['futureSignal', id],
+    queryFn: () => futureSignalService.getById(id),
+    staleTime: STALE_SIGNALS,
+    enabled: !!id,
+    select: (res) => res.data ?? null,
+  })
+}
+
 export function useFutureSignalsByProperty(propertyId: string) {
   return useQuery({
     queryKey: ['futureSignals', 'property', propertyId],
@@ -24,9 +35,21 @@ export function useFutureSignalsByProperty(propertyId: string) {
 export function useVerifySignal() {
   const queryClient = useQueryClient()
   return useMutation({
-    mutationFn: (signalId: string) => futureSignalService.verify(signalId, 'current-user'),
+    mutationFn: (signalId: string) => futureSignalService.verify(signalId, 'admin@ideal-sharing.ch'),
     onSuccess: () => {
       queryClient.invalidateQueries({ queryKey: ['futureSignals'] })
     },
   })
 }
+
+export function useUpdateSignalReviewStatus() {
+  const queryClient = useQueryClient()
+  return useMutation({
+    mutationFn: ({ id, status }: { id: string; status: ReviewStatus }) =>
+      futureSignalService.updateReviewStatus(id, status),
+    onSuccess: () => {
+      queryClient.invalidateQueries({ queryKey: ['futureSignals'] })
+      queryClient.invalidateQueries({ queryKey: ['futureSignal'] })
+    },
+  })
+}