initial onboarding

app/lib/features/user/domain/repositories/onboarding.dart

@@ -0,0 +1,34 @@
+import 'package:riverpod_annotation/riverpod_annotation.dart';
+import 'package:weblibre/features/user/data/providers.dart';
+
+part 'onboarding.g.dart';
+
+@Riverpod(keepAlive: true)
+class OnboardingRepository extends _$OnboardingRepository {
+  static const targetRevision = 1;
+
+  Future<int?> getCurrentRevision() {
+    return ref
+        .read(userDatabaseProvider)
+        .onboardingDao
+        .getLastRevision()
+        .getSingleOrNull();
+  }
+
+  Future<void> pushRevision(int revision) {
+    return ref
+        .read(userDatabaseProvider)
+        .onboardingDao
+        .pushRevision(revision, DateTime.now());
+  }
+
+  Future<bool> isOutdated() async {
+    final current = await getCurrentRevision();
+    return current != targetRevision;
+  }
+
+  @override
+  void build() {
+    return;
+  }
+}