feat(app): finalize ad gated flows and weather

- add AppLogger and replace scattered print logging\n- implement ad-gated recommendation flow with reminder handling and calendar link\n- complete Bluetooth share pipeline with ad gate and merge\n- integrate KMA weather API with caching and dart-define decoding\n- add NaverUrlProcessor refactor and restore restaurant repository tests

lib/presentation/pages/random_selection/random_selection_screen.dart

@@ -1,3 +1,4 @@
+import 'package:flutter/foundation.dart';
 import 'package:flutter/material.dart';
 import 'package:flutter_riverpod/flutter_riverpod.dart';
 import 'package:geolocator/geolocator.dart';
@@ -28,6 +29,7 @@ class RandomSelectionScreen extends ConsumerStatefulWidget {
 class _RandomSelectionScreenState extends ConsumerState<RandomSelectionScreen> {
   double _distanceValue = 500;
   final List<String> _selectedCategories = [];
+  final List<String> _excludedRestaurantIds = [];
   bool _isProcessingRecommendation = false;
 
   @override
@@ -459,18 +461,28 @@ class _RandomSelectionScreenState extends ConsumerState<RandomSelectionScreen> {
     return count > 0;
   }
 
-  Future<void> _startRecommendation({bool skipAd = false}) async {
+  Future<void> _startRecommendation({
+    bool skipAd = false,
+    bool isReroll = false,
+  }) async {
     if (_isProcessingRecommendation) return;
 
+    if (!isReroll) {
+      _excludedRestaurantIds.clear();
+    }
+
     setState(() {
       _isProcessingRecommendation = true;
     });
 
     try {
-      final candidate = await _generateRecommendationCandidate();
+      final candidate = await _generateRecommendationCandidate(
+        excludedRestaurantIds: _excludedRestaurantIds,
+      );
       if (candidate == null) {
         return;
       }
+      final recommendedAt = DateTime.now();
 
       if (!skipAd) {
         final adService = ref.read(adServiceProvider);
@@ -488,7 +500,7 @@ class _RandomSelectionScreenState extends ConsumerState<RandomSelectionScreen> {
       }
 
       if (!mounted) return;
-      _showRecommendationDialog(candidate);
+      await _showRecommendationDialog(candidate, recommendedAt: recommendedAt);
     } catch (_) {
       _showSnack(
         '추천을 준비하는 중 문제가 발생했습니다.',
@@ -503,12 +515,16 @@ class _RandomSelectionScreenState extends ConsumerState<RandomSelectionScreen> {
     }
   }
 
-  Future<Restaurant?> _generateRecommendationCandidate() async {
+  Future<Restaurant?> _generateRecommendationCandidate({
+    List<String> excludedRestaurantIds = const [],
+  }) async {
     final notifier = ref.read(recommendationNotifierProvider.notifier);
 
-    await notifier.getRandomRecommendation(
+    final recommendation = await notifier.getRandomRecommendation(
       maxDistance: _distanceValue,
       selectedCategories: _selectedCategories,
+      excludedRestaurantIds: excludedRestaurantIds,
+      shouldSaveRecord: false,
     );
 
     final result = ref.read(recommendationNotifierProvider);
@@ -522,49 +538,82 @@ class _RandomSelectionScreenState extends ConsumerState<RandomSelectionScreen> {
       return null;
     }
 
-    final restaurant = result.asData?.value;
-    if (restaurant == null) {
-      _showSnack('조건에 맞는 식당이 존재하지 않습니다', backgroundColor: AppColors.lightError);
+    if (recommendation == null) {
+      _showSnack(
+        '조건에 맞는 식당이 존재하지 않습니다. 광고는 재생되지 않았습니다.',
+        backgroundColor: AppColors.lightError,
+      );
     }
-    return restaurant;
+    return recommendation;
   }
 
-  void _showRecommendationDialog(Restaurant restaurant) {
-    showDialog(
+  Future<void> _showRecommendationDialog(
+    Restaurant restaurant, {
+    DateTime? recommendedAt,
+  }) async {
+    final result = await showDialog<RecommendationDialogResult>(
       context: context,
       barrierDismissible: false,
-      builder: (dialogContext) => RecommendationResultDialog(
-        restaurant: restaurant,
-        onReroll: () async {
-          Navigator.pop(dialogContext);
-          await _startRecommendation(skipAd: true);
-        },
-        onClose: () async {
-          Navigator.pop(dialogContext);
-          await _handleRecommendationAccepted(restaurant);
-        },
-      ),
+      builder: (dialogContext) =>
+          RecommendationResultDialog(restaurant: restaurant),
     );
+
+    if (!mounted) return;
+
+    switch (result) {
+      case RecommendationDialogResult.reroll:
+        setState(() {
+          _excludedRestaurantIds.add(restaurant.id);
+        });
+        await _startRecommendation(skipAd: true, isReroll: true);
+        break;
+      case RecommendationDialogResult.confirm:
+      case RecommendationDialogResult.autoConfirm:
+      default:
+        await _handleRecommendationAccepted(
+          restaurant,
+          recommendedAt ?? DateTime.now(),
+        );
+        break;
+    }
   }
 
-  Future<void> _handleRecommendationAccepted(Restaurant restaurant) async {
-    final recommendationTime = DateTime.now();
-
+  Future<void> _handleRecommendationAccepted(
+    Restaurant restaurant,
+    DateTime recommendationTime,
+  ) async {
     try {
+      final recommendationNotifier = ref.read(
+        recommendationNotifierProvider.notifier,
+      );
+      await recommendationNotifier.saveRecommendationRecord(
+        restaurant,
+        recommendationTime: recommendationTime,
+      );
+
       final notificationEnabled = await ref.read(
         notificationEnabledProvider.future,
       );
-      if (notificationEnabled) {
-        final delayMinutes = await ref.read(
-          notificationDelayMinutesProvider.future,
-        );
+      bool notificationScheduled = false;
+      if (notificationEnabled && !kIsWeb) {
         final notificationService = ref.read(notificationServiceProvider);
-        await notificationService.scheduleVisitReminder(
-          restaurantId: restaurant.id,
-          restaurantName: restaurant.name,
-          recommendationTime: recommendationTime,
-          delayMinutes: delayMinutes,
+        final notificationReady = await notificationService.ensureInitialized(
+          requestPermission: true,
         );
+
+        if (notificationReady) {
+          final delayMinutes = await ref.read(
+            notificationDelayMinutesProvider.future,
+          );
+          await notificationService.scheduleVisitReminder(
+            restaurantId: restaurant.id,
+            restaurantName: restaurant.name,
+            recommendationTime: recommendationTime,
+            delayMinutes: delayMinutes,
+          );
+          notificationScheduled = await notificationService
+              .hasVisitReminderScheduled();
+        }
       }
 
       await ref
@@ -574,7 +623,19 @@ class _RandomSelectionScreenState extends ConsumerState<RandomSelectionScreen> {
             recommendationTime: recommendationTime,
           );
 
-      _showSnack('맛있게 드세요! 🍴');
+      if (notificationEnabled && !notificationScheduled && !kIsWeb) {
+        _showSnack(
+          '방문 기록은 저장됐지만 알림 권한이나 설정을 확인해 주세요. 방문 알림을 예약하지 못했습니다.',
+          backgroundColor: AppColors.lightError,
+        );
+      } else {
+        _showSnack('맛있게 드세요! 🍴');
+      }
+      if (mounted) {
+        setState(() {
+          _excludedRestaurantIds.clear();
+        });
+      }
     } catch (_) {
       _showSnack(
         '방문 기록 또는 알림 예약에 실패했습니다.',
@@ -588,10 +649,22 @@ class _RandomSelectionScreenState extends ConsumerState<RandomSelectionScreen> {
     Color backgroundColor = AppColors.lightPrimary,
   }) {
     if (!mounted) return;
+    final topInset = MediaQuery.of(context).viewPadding.top;
     ScaffoldMessenger.of(context)
       ..hideCurrentSnackBar()
       ..showSnackBar(
-        SnackBar(content: Text(message), backgroundColor: backgroundColor),
+        SnackBar(
+          content: Text(message),
+          backgroundColor: backgroundColor,
+          behavior: SnackBarBehavior.floating,
+          margin: EdgeInsets.fromLTRB(
+            16,
+            (topInset > 0 ? topInset : 16) + 8,
+            16,
+            0,
+          ),
+          duration: const Duration(seconds: 3),
+        ),
       );
   }
 }