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/data/api/naver/naver_local_search_api.dart

@@ -1,5 +1,5 @@
 import 'package:dio/dio.dart';
-import 'package:flutter/foundation.dart';
+import 'package:lunchpick/core/utils/app_logger.dart';
 
 import '../../../core/constants/api_keys.dart';
 import '../../../core/network/network_client.dart';
@@ -143,9 +143,13 @@ class NaverLocalSearchApi {
           .map((item) => NaverLocalSearchResult.fromJson(item))
           .toList();
     } on DioException catch (e) {
-      debugPrint('NaverLocalSearchApi Error: ${e.message}');
-      debugPrint('Error type: ${e.type}');
-      debugPrint('Error response: ${e.response?.data}');
+      AppLogger.error(
+        'NaverLocalSearchApi error: ${e.message}',
+        error: e,
+        stackTrace: e.stackTrace,
+      );
+      AppLogger.debug('Error type: ${e.type}');
+      AppLogger.debug('Error response: ${e.response?.data}');
 
       if (e.error is NetworkException) {
         throw e.error!;
@@ -189,8 +193,12 @@ class NaverLocalSearchApi {
 
       // 정확한 매칭이 없으면 첫 번째 결과 반환
       return results.first;
-    } catch (e) {
-      debugPrint('searchRestaurantDetails error: $e');
+    } catch (e, stackTrace) {
+      AppLogger.error(
+        'searchRestaurantDetails error: $e',
+        error: e,
+        stackTrace: stackTrace,
+      );
       return null;
     }
   }