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/core/network/interceptors/logging_interceptor.dart

@@ -1,5 +1,6 @@
 import 'package:dio/dio.dart';
 import 'package:flutter/foundation.dart';
+import '../../utils/app_logger.dart';
 
 /// 로깅 인터셉터
 ///
@@ -13,16 +14,18 @@ class LoggingInterceptor extends Interceptor {
       final method = options.method;
       final headers = options.headers;
 
-      print('═══════════════════════════════════════════════════════════════');
-      print('>>> REQUEST [$method] $uri');
-      print('>>> Headers: $headers');
+      AppLogger.debug(
+        '═══════════════════════════════════════════════════════════════',
+      );
+      AppLogger.debug('>>> REQUEST [$method] $uri');
+      AppLogger.debug('>>> Headers: $headers');
 
       if (options.data != null) {
-        print('>>> Body: ${options.data}');
+        AppLogger.debug('>>> Body: ${options.data}');
       }
 
       if (options.queryParameters.isNotEmpty) {
-        print('>>> Query Parameters: ${options.queryParameters}');
+        AppLogger.debug('>>> Query Parameters: ${options.queryParameters}');
       }
     }
 
@@ -35,21 +38,25 @@ class LoggingInterceptor extends Interceptor {
       final statusCode = response.statusCode;
       final uri = response.requestOptions.uri;
 
-      print('<<< RESPONSE [$statusCode] $uri');
+      AppLogger.debug('<<< RESPONSE [$statusCode] $uri');
 
       if (response.headers.map.isNotEmpty) {
-        print('<<< Headers: ${response.headers.map}');
+        AppLogger.debug('<<< Headers: ${response.headers.map}');
       }
 
       // 응답 본문은 너무 길 수 있으므로 처음 500자만 출력
       final responseData = response.data.toString();
       if (responseData.length > 500) {
-        print('<<< Body: ${responseData.substring(0, 500)}...(truncated)');
+        AppLogger.debug(
+          '<<< Body: ${responseData.substring(0, 500)}...(truncated)',
+        );
       } else {
-        print('<<< Body: $responseData');
+        AppLogger.debug('<<< Body: $responseData');
       }
 
-      print('═══════════════════════════════════════════════════════════════');
+      AppLogger.debug(
+        '═══════════════════════════════════════════════════════════════',
+      );
     }
 
     return handler.next(response);
@@ -61,17 +68,21 @@ class LoggingInterceptor extends Interceptor {
       final uri = err.requestOptions.uri;
       final message = err.message;
 
-      print('═══════════════════════════════════════════════════════════════');
-      print('!!! ERROR $uri');
-      print('!!! Message: $message');
+      AppLogger.debug(
+        '═══════════════════════════════════════════════════════════════',
+      );
+      AppLogger.debug('!!! ERROR $uri');
+      AppLogger.debug('!!! Message: $message');
 
       if (err.response != null) {
-        print('!!! Status Code: ${err.response!.statusCode}');
-        print('!!! Response: ${err.response!.data}');
+        AppLogger.debug('!!! Status Code: ${err.response!.statusCode}');
+        AppLogger.debug('!!! Response: ${err.response!.data}');
       }
 
-      print('!!! Error Type: ${err.type}');
-      print('═══════════════════════════════════════════════════════════════');
+      AppLogger.debug('!!! Error Type: ${err.type}');
+      AppLogger.debug(
+        '═══════════════════════════════════════════════════════════════',
+      );
     }
 
     return handler.next(err);

lib/core/network/interceptors/retry_interceptor.dart

@@ -2,6 +2,7 @@ import 'dart:async';
 import 'dart:math';
 import 'package:dio/dio.dart';
 import '../network_config.dart';
+import '../../utils/app_logger.dart';
 import '../../errors/network_exceptions.dart';
 
 /// 재시도 인터셉터
@@ -24,7 +25,7 @@ class RetryInterceptor extends Interceptor {
         // 지수 백오프 계산
         final delay = _calculateBackoffDelay(retryCount);
 
-        print(
+        AppLogger.debug(
           'RetryInterceptor: 재시도 ${retryCount + 1}/${NetworkConfig.maxRetries} - ${delay}ms 대기',
         );
 
@@ -59,7 +60,7 @@ class RetryInterceptor extends Interceptor {
     // 네이버 관련 요청은 재시도하지 않음
     final url = err.requestOptions.uri.toString();
     if (url.contains('naver.com') || url.contains('naver.me')) {
-      print('RetryInterceptor: 네이버 API 요청은 재시도하지 않음 - $url');
+      AppLogger.debug('RetryInterceptor: 네이버 API 요청은 재시도하지 않음 - $url');
       return false;
     }
 

lib/core/network/network_client.dart

@@ -1,9 +1,11 @@
+import 'dart:io';
+
 import 'package:dio/dio.dart';
 import 'package:dio_cache_interceptor/dio_cache_interceptor.dart';
 import 'package:dio_cache_interceptor_hive_store/dio_cache_interceptor_hive_store.dart';
 import 'package:flutter/foundation.dart';
+import 'package:lunchpick/core/utils/app_logger.dart';
 import 'package:path_provider/path_provider.dart';
-import 'dart:io';
 
 import 'network_config.dart';
 import '../errors/network_exceptions.dart';
@@ -88,8 +90,12 @@ class NetworkClient {
       );
 
       _dio.interceptors.add(DioCacheInterceptor(options: cacheOptions));
-    } catch (e) {
-      debugPrint('NetworkClient: 캐시 설정 실패 - $e');
+    } catch (e, stackTrace) {
+      AppLogger.error(
+        'NetworkClient: 캐시 설정 실패 - $e',
+        error: e,
+        stackTrace: stackTrace,
+      );
       // 캐시 실패해도 계속 진행
     }
   }