fix(mobile): show memories right after the first login (#33030)

mobile/lib/infrastructure/repositories/memory.repository.dart

@@ -93,6 +93,10 @@ class MemoryRepository extends DatabaseAccessor<Drift> with $MemoryRepositoryMix
   Future<int> getCount() {
     return _db.managers.memoryEntity.count();
   }
+
+  Stream<void> watchChanges() {
+    return _db.tableUpdates(TableUpdateQuery.onAllTables([_db.memoryEntity, _db.memoryAssetEntity]));
+  }
 }
 
 extension on MemoryEntityData {

mobile/lib/providers/infrastructure/memory.provider.dart

@@ -17,7 +17,11 @@ final memoryLaneProvider = FutureProvider.autoDispose<List<Memory>>((ref) {
   final timer = Timer(nextMidnight.difference(now) + const Duration(seconds: 5), ref.invalidateSelf);
   ref.onDispose(timer.cancel);
 
-  final service = MemoryService(ref.watch(driftProvider).memoryRepository);
+  final repository = ref.watch(driftProvider).memoryRepository;
+  final subscription = repository.watchChanges().listen((_) => ref.invalidateSelf());
+  ref.onDispose(subscription.cancel);
+
+  final service = MemoryService(repository);
   return service.getMemoryLane(userId);
 });
 

mobile/test/providers/infrastructure/memory_provider_test.dart

@@ -1,3 +1,5 @@
+import 'dart:async';
+
 import 'package:fake_async/fake_async.dart';
 import 'package:flutter_test/flutter_test.dart';
 import 'package:hooks_riverpod/hooks_riverpod.dart';
@@ -48,6 +50,7 @@ void main() {
     userService = MockUserService();
 
     when(() => memoryRepository.getAll('user-1')).thenAnswer((_) async => []);
+    when(() => memoryRepository.watchChanges()).thenAnswer((_) => const Stream.empty());
     when(() => userService.tryGetMyUser()).thenReturn(user());
     when(() => userService.watchMyUser()).thenAnswer((_) => const Stream.empty());
   });
@@ -71,6 +74,22 @@ void main() {
       });
     });
 
+    test('re-queries when the memory tables change', () {
+      fakeAsync((async) {
+        final changes = StreamController<void>.broadcast();
+        when(() => memoryRepository.watchChanges()).thenAnswer((_) => changes.stream);
+        final container = makeContainer();
+        container.listen(memoryLaneProvider, (_, _) {});
+        async.flushMicrotasks();
+        verify(() => memoryRepository.getAll('user-1')).called(1);
+
+        changes.add(null);
+        async.elapse(Duration.zero);
+        verify(() => memoryRepository.getAll('user-1')).called(1);
+        unawaited(changes.close());
+      });
+    });
+
     test('cancels the midnight timer when disposed', () {
       fakeAsync((async) {
         final container = makeContainer();