userfront gateway 분리.

userfront/lib/core/services/auth_proxy_service.dart

@@ -469,6 +469,9 @@ class AuthProxyService {
   }
 
   static Future<void> sendLog(String level, String message, {Map<String, dynamic>? data}) async {
+    if (!_canSendClientLog()) {
+      return;
+    }
     final url = Uri.parse('$_baseUrl/api/v1/client-log');
     try {
       await http.post(
@@ -480,7 +483,9 @@ class AuthProxyService {
           if (data != null) 'data': data,
         }),
       );
+      _recordClientLogSuccess();
     } catch (_) {
+      _recordClientLogFailure();
       // Ignore logging errors to prevent loops
     }
   }
@@ -493,6 +498,34 @@ class AuthProxyService {
     await sendLog('ERROR', message, data: data);
   }
 
+  static int _clientLogFailureCount = 0;
+  static DateTime? _clientLogLastFailureAt;
+  static DateTime? _clientLogOpenUntil;
+
+  static bool _canSendClientLog() {
+    final now = DateTime.now();
+    final openUntil = _clientLogOpenUntil;
+    if (openUntil != null && now.isBefore(openUntil)) {
+      return false;
+    }
+    return true;
+  }
+
+  static void _recordClientLogFailure() {
+    _clientLogFailureCount += 1;
+    _clientLogLastFailureAt = DateTime.now();
+    if (_clientLogFailureCount >= 3) {
+      _clientLogOpenUntil = DateTime.now().add(const Duration(minutes: 1));
+      _clientLogFailureCount = 0;
+    }
+  }
+
+  static void _recordClientLogSuccess() {
+    _clientLogFailureCount = 0;
+    _clientLogLastFailureAt = null;
+    _clientLogOpenUntil = null;
+  }
+
   // --- Signup Methods ---
 
   static Future<bool> checkEmailAvailability(String email) async {

userfront/lib/core/services/logger_service.dart

@@ -25,7 +25,7 @@ class LoggerService {
     );
 
     // 2. Configure Standard Logger (logging package)
-    std_log.Logger.root.level = kReleaseMode ? std_log.Level.INFO : std_log.Level.ALL;
+    std_log.Logger.root.level = kReleaseMode ? std_log.Level.WARNING : std_log.Level.ALL;
     
     std_log.Logger.root.onRecord.listen((record) {
       if (kReleaseMode) {
@@ -71,7 +71,7 @@ class LoggerService {
     debugPrint(jsonEncode(logData));
 
     // 2. Relay to Backend (Docker Terminal)
-    if (record.level >= std_log.Level.INFO) {
+    if (record.level >= std_log.Level.WARNING) {
       AuthProxyService.sendLog(
         record.level.name,
         record.message,