Initial commit

apps/web/src/hooks/useSession.ts

@@ -0,0 +1,25 @@
+import { useMutation, useQuery, useQueryClient } from '@tanstack/react-query'
+import { apiFetch, apiPost } from '../lib/api'
+import type { SessionResponse } from '../types'
+
+export function useSession() {
+  return useQuery({
+    queryKey: ['session'],
+    queryFn: () => apiFetch<SessionResponse>('/api/v1/session'),
+    staleTime: 60_000,
+  })
+}
+
+export function useLogout() {
+  const queryClient = useQueryClient()
+  return useMutation({
+    mutationFn: () => apiPost('/api/v1/auth/logout'),
+    // Full reload rather than just invalidating the session query — clears
+    // any in-memory query cache holding data from the now-logged-out user,
+    // and re-runs App.tsx's session check from a clean slate.
+    onSuccess: () => {
+      queryClient.clear()
+      window.location.assign('/')
+    },
+  })
+}