initial onboarding

app/lib/features/user/data/database/daos/onboarding.dart

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+import 'package:drift/drift.dart';
+import 'package:weblibre/features/user/data/database/database.dart';
+
+part 'onboarding.g.dart';
+
+@DriftAccessor()
+class OnboardingDao extends DatabaseAccessor<UserDatabase>
+    with _$OnboardingDaoMixin {
+  OnboardingDao(super.attachedDatabase);
+
+  SingleOrNullSelectable<int?> getLastRevision() {
+    final maxRevision = db.onboarding.revision.max();
+
+    final query = selectOnly(db.onboarding)..addColumns([maxRevision]);
+
+    return query.map((row) => row.read(maxRevision));
+  }
+
+  Future<void> pushRevision(int revision, DateTime completionDate) {
+    return db.onboarding.insertOne(
+      OnboardingCompanion.insert(
+        revision: revision,
+        completionDate: completionDate,
+      ),
+      mode: InsertMode.insertOrReplace,
+    );
+  }
+}

app/lib/features/user/data/database/daos/onboarding.g.dart

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+// GENERATED CODE - DO NOT MODIFY BY HAND
+
+part of 'onboarding.dart';
+
+// ignore_for_file: type=lint
+mixin _$OnboardingDaoMixin on DatabaseAccessor<UserDatabase> {}