fix(ad): 스크린샷 모드에서 네이티브 광고 비활성화

lib/presentation/pages/share/share_screen.dart

@@ -14,6 +14,7 @@ import 'package:lunchpick/presentation/providers/ad_provider.dart';
 import 'package:lunchpick/presentation/providers/bluetooth_provider.dart';
 import 'package:lunchpick/presentation/providers/debug_share_preview_provider.dart';
 import 'package:lunchpick/presentation/providers/restaurant_provider.dart';
+import 'package:lunchpick/presentation/providers/settings_provider.dart';
 import 'package:lunchpick/presentation/widgets/native_ad_placeholder.dart';
 import 'package:uuid/uuid.dart';
 
@@ -125,6 +126,9 @@ class _ShareScreenState extends ConsumerState<ShareScreen> {
   @override
   Widget build(BuildContext context) {
     final isDark = Theme.of(context).brightness == Brightness.dark;
+    final screenshotModeEnabled = ref
+        .watch(screenshotModeEnabledProvider)
+        .maybeWhen(data: (value) => value, orElse: () => false);
 
     return Scaffold(
       backgroundColor: isDark
@@ -157,7 +161,10 @@ class _ShareScreenState extends ConsumerState<ShareScreen> {
                   child: _buildSendSection(isDark),
                 ),
                 const SizedBox(height: 16),
-                const NativeAdPlaceholder(height: 220),
+                NativeAdPlaceholder(
+                  height: 220,
+                  enabled: !screenshotModeEnabled,
+                ),
                 const SizedBox(height: 16),
                 _ShareCard(
                   isDark: isDark,