fix: Mobile QA — manual tasks + remittance review (FIBEROPS-207-208)

- manual-tasks/[id].tsx: use r.data?.data ?? r.data for detail query to
  handle API response wrapper envelope, matching list screen pattern
- remittances/[id].tsx: same fix — detail query now unwraps correctly
- services/api.ts: use STORAGE_KEYS.TOKEN constant instead of hardcoded
  string literals in SecureStore calls

app/(app)/remittances/[id].tsx

@@ -25,7 +25,7 @@ export default function RemittanceDetailScreen() {
 
   const { data, isLoading } = useQuery({
     queryKey: ['remittance', id],
-    queryFn: () => api.get(`/api/v1/remittances/${id}`).then(r => r.data),
+    queryFn: () => api.get(`/api/v1/remittances/${id}`).then(r => r.data?.data ?? r.data),
   });
 
   if (isLoading) {