third commit

lib/app/providers.dart

@@ -30,13 +30,25 @@ final transactionRepositoryProvider = Provider<TransactionRepository>(
   (ref) => TransactionRepositoryImpl(ref.watch(localStoreProvider)),
 );
 
+/// Mirrors the Settings "Simulate offline" switch so the header can show it.
+///
+/// Without this the terminal claims LIVE while every call is being failed on
+/// purpose, which reads as a real network fault.
+final simulateOfflineProvider = StateProvider<bool>((ref) => false);
+
 /// Simulated back-office endpoints. Held as singletons so the offline toggle
 /// in Settings affects every call.
-final remoteCatalogueProvider =
-    Provider<RemoteCatalogueSource>((ref) => RemoteCatalogueSource());
+final remoteCatalogueProvider = Provider<RemoteCatalogueSource>(
+  (ref) => RemoteCatalogueSource(
+    isOffline: () => ref.read(simulateOfflineProvider),
+  ),
+);
 
-final remoteOrderSinkProvider =
-    Provider<RemoteOrderSink>((ref) => RemoteOrderSink());
+final remoteOrderSinkProvider = Provider<RemoteOrderSink>(
+  (ref) => RemoteOrderSink(
+    isOffline: () => ref.read(simulateOfflineProvider),
+  ),
+);
 
 final syncRepositoryProvider = Provider<SyncRepository>(
   (ref) => SyncRepositoryImpl(