fix: resolve navigation-cache regressions and todo UX

apps/test/features/todo/todo_repository_test.dart

@@ -12,7 +12,7 @@ class _MockTodoApi extends Mock implements TodoApi {}
 
 void main() {
   test(
-    'complete todo should optimistically update and invalidate pending list key',
+    'complete todo should optimistically remove item and invalidate pending list key',
     () async {
       final api = _MockTodoApi();
       final store = HybridCacheStore(
@@ -50,7 +50,7 @@ void main() {
       final updated = await store.read<CacheEntry<List<TodoResponse>>>(
         TodoRepository.pendingListKey,
       );
-      expect(updated?.value.first.status, 'completed');
+      expect(updated, isNull);
       expect(invalidator.wasInvalidated(TodoRepository.pendingListKey), true);
     },
   );