feat(logging): add logging to auth feature

apps/lib/features/auth/presentation/cubits/login_cubit.dart

@@ -5,6 +5,7 @@ import 'package:formz/formz.dart';
 import 'package:equatable/equatable.dart';
 import '../../../../data/network/api_exception.dart';
 import '../../../../core/l10n/l10n.dart';
+import '../../../../core/logging/logger.dart';
 import '../../data/repositories/auth_repository.dart';
 import '../../data/models/auth_response.dart';
 import '../../../../shared/forms/inputs.dart';
@@ -78,6 +79,7 @@ class LoginState extends Equatable {
 
 class LoginCubit extends Cubit<LoginState> {
   final AuthRepository _repository;
+  final Logger _logger = getLogger('features.auth.login');
   Timer? _resendTimer;
 
   LoginCubit(this._repository) : super(const LoginState());
@@ -149,10 +151,16 @@ class LoginCubit extends Cubit<LoginState> {
         ),
       );
       return true;
-    } catch (e) {
+    } catch (e, stackTrace) {
       if (isClosed) {
         return false;
       }
+      _logger.error(
+        message: 'Failed to send OTP',
+        error: e,
+        stackTrace: stackTrace,
+        extra: {'phone': requestPhone},
+      );
       final message = e is ApiException
           ? e.message
           : L10n.current.authSendCodeFailed;
@@ -176,10 +184,11 @@ class LoginCubit extends Cubit<LoginState> {
       }
       emit(state.copyWith(status: FormzSubmissionStatus.success));
       return response;
-    } catch (e) {
+    } catch (e, stackTrace) {
       if (isClosed) {
         return null;
       }
+      _logger.error(message: 'Login failed', error: e, stackTrace: stackTrace);
       final message = e is ApiException ? e.message : e.toString();
       emit(
         state.copyWith(