fix(ad): 스크린샷 모드에서 네이티브 광고 비활성화

lib/presentation/pages/restaurant_list/restaurant_list_screen.dart

@@ -5,6 +5,7 @@ import '../../../core/constants/app_typography.dart';
 import '../../../core/utils/category_mapper.dart';
 import '../../../core/utils/app_logger.dart';
 import '../../providers/restaurant_provider.dart';
+import '../../providers/settings_provider.dart';
 import '../../widgets/category_selector.dart';
 import '../../widgets/native_ad_placeholder.dart';
 import 'manual_restaurant_input_screen.dart';
@@ -34,6 +35,9 @@ class _RestaurantListScreenState extends ConsumerState<RestaurantListScreen> {
     final isDark = Theme.of(context).brightness == Brightness.dark;
     final searchQuery = ref.watch(searchQueryProvider);
     final selectedCategory = ref.watch(selectedCategoryProvider);
+    final screenshotModeEnabled = ref
+        .watch(screenshotModeEnabledProvider)
+        .maybeWhen(data: (value) => value, orElse: () => false);
     final isFiltered = searchQuery.isNotEmpty || selectedCategory != null;
     final restaurantsAsync = ref.watch(sortedRestaurantsByDistanceProvider);
 
@@ -157,8 +161,9 @@ class _RestaurantListScreenState extends ConsumerState<RestaurantListScreen> {
                         index >= adOffset &&
                         (index - adOffset) % adInterval == 0;
                     if (isAdIndex) {
-                      return const NativeAdPlaceholder(
-                        margin: EdgeInsets.symmetric(
+                      return NativeAdPlaceholder(
+                        enabled: !screenshotModeEnabled,
+                        margin: const EdgeInsets.symmetric(
                           horizontal: 16,
                           vertical: 8,
                         ),