dependencies update

lib/core/dependencies.dart

@@ -8,6 +8,7 @@ import 'package:hmg_patient_app_new/features/authentication/authentication_view_
 import 'package:hmg_patient_app_new/features/book_appointments/book_appointments_repo.dart';
 import 'package:hmg_patient_app_new/features/book_appointments/book_appointments_view_model.dart';
 import 'package:hmg_patient_app_new/features/common/common_repo.dart';
+import 'package:hmg_patient_app_new/features/doctor_filter/doctor_filter_view_model.dart';
 import 'package:hmg_patient_app_new/features/habib_wallet/habib_wallet_repo.dart';
 import 'package:hmg_patient_app_new/features/habib_wallet/habib_wallet_view_model.dart';
 import 'package:hmg_patient_app_new/features/immediate_livecare/immediate_livecare_repo.dart';
@@ -34,6 +35,7 @@ import 'package:hmg_patient_app_new/services/firebase_service.dart';
 import 'package:hmg_patient_app_new/services/localauth_service.dart';
 import 'package:hmg_patient_app_new/services/logger_service.dart';
 import 'package:hmg_patient_app_new/services/navigation_service.dart';
+import 'package:hmg_patient_app_new/widgets/date_range_selector/viewmodel/date_range_view_model.dart';
 import 'package:local_auth/local_auth.dart';
 import 'package:logger/web.dart';
 import 'package:shared_preferences/shared_preferences.dart';
@@ -171,6 +173,14 @@ class AppDependencies {
           authenticationRepo: getIt(), cacheService: getIt(), navigationService: getIt(), dialogService: getIt(), appState: getIt(), errorHandlerService: getIt(), localAuthService: getIt()),
     );
 
+    getIt.registerLazySingleton<DateRangeSelectorRangeViewModel>(
+      () => DateRangeSelectorRangeViewModel(),
+    );
+
+    getIt.registerLazySingleton<DoctorFilterViewModel>(
+      () => DoctorFilterViewModel(),
+    );
+
     // Screen-specific VMs → Factory
     // getIt.registerFactory<BookAppointmentsViewModel>(
     //       () => BookAppointmentsViewModel(