fix(offline): honor settled profile visibility

test/providers/multi_server_provider_test.dart

@@ -95,14 +95,18 @@ void main() {
         var notified = 0;
         p.addListener(() => notified++);
 
+        expect(p.hasExplicitVisibleServerFilter, isFalse);
+
         // Empty set is a real value (different from null) — switching from
         // null → {} should notify so consumers know the active profile has
         // no servers, not "all servers".
         p.setVisibleServerIds(<String>{});
         expect(notified, 1);
+        expect(p.hasExplicitVisibleServerFilter, isTrue);
 
         p.setVisibleServerIds({'a', 'b'});
         expect(notified, 2);
+        expect(p.hasExplicitVisibleServerFilter, isTrue);
 
         // Idempotent: same membership is a no-op.
         p.setVisibleServerIds({'b', 'a'});
@@ -111,6 +115,7 @@ void main() {
         // Clearing back to null after a real filter is a state change.
         p.setVisibleServerIds(null);
         expect(notified, 3);
+        expect(p.hasExplicitVisibleServerFilter, isFalse);
 
         p.dispose();
       });

test/providers/offline_mode_provider_test.dart

@@ -166,6 +166,33 @@ void main() {
       manager.dispose();
     });
 
+    test('expected but unreachable profile servers enter offline once visibility settles', () async {
+      final manager = MultiServerManager();
+      final multi = MultiServerProvider(manager, DataAggregationService(manager));
+      final p = OfflineModeProvider(manager, multiServerProvider: multi);
+
+      expect(p.isOffline, isFalse);
+
+      var notifications = 0;
+      p.addListener(() => notifications++);
+
+      multi.setExpectedVisibleServerIds({'jf-machine'});
+      await Future<void>.delayed(Duration.zero);
+
+      expect(p.isOffline, isFalse);
+      expect(notifications, 0);
+
+      multi.setVisibleServerIds(<String>{});
+      await Future<void>.delayed(Duration.zero);
+
+      expect(p.isOffline, isTrue);
+      expect(notifications, 1);
+
+      p.dispose();
+      multi.dispose();
+      manager.dispose();
+    });
+
     test('Plex auth errors without live clients stay out of generic offline', () async {
       final manager = MultiServerManager();
       final multi = MultiServerProvider(manager, DataAggregationService(manager));