onedirve and google drive

lib/services/app_state.dart

@@ -234,11 +234,13 @@ class AppState extends ChangeNotifier {
   Future<void> chooseCloudFolder({
     required String parentId,
     required String breadcrumbPath,
+    String? currentFolderName,
   }) async {
     final sync = cloudSync;
     if (sync == null) return;
 
-    final folderId = await sync.selectAppFolder(parentId);
+    final folderId =
+        await sync.selectAppFolder(parentId, currentFolderName: currentFolderName);
     cloudFolderPath = breadcrumbPath;
 
     final prefs = await SharedPreferences.getInstance();
@@ -399,6 +401,18 @@ class AppState extends ChangeNotifier {
     }
   }
 
+  /// Exact match against an active vehicle's VIN — same comparison
+  /// [DatabaseService.vinExists] does, not case-insensitive, since VIN
+  /// isn't normalized to any particular case on manual entry (only OCR
+  /// scanning uppercases it).
+  Vehicle? vehicleByVin(String vin) {
+    try {
+      return vehicles.firstWhere((v) => v.vin == vin);
+    } catch (_) {
+      return null;
+    }
+  }
+
   Future<void> _persist() async {
     await _refreshFromDatabase();
     notifyListeners();