프로필 비밀번호 변경 정책 안내 추가

userfront/lib/features/auth/presentation/reset_password_screen.dart

@@ -68,6 +68,7 @@ class _ResetPasswordScreenState extends State<ResetPasswordScreen> {
   }
 
   Future<void> _handlePasswordReset() async {
+    if (_isLoading) return;
     if (_formKey.currentState?.validate() != true) return;
     if ((_loginId == null || _loginId!.isEmpty) &&
         (_token == null || _token!.isEmpty)) {
@@ -76,6 +77,7 @@ class _ResetPasswordScreenState extends State<ResetPasswordScreen> {
     }
 
     setState(() => _isLoading = true);
+    bool isSuccess = false;
 
     try {
       await AuthProxyService.completePasswordReset(
@@ -84,6 +86,7 @@ class _ResetPasswordScreenState extends State<ResetPasswordScreen> {
         newPassword: _passwordController.text,
       );
 
+      isSuccess = true;
       if (mounted) {
         ToastService.success(tr('msg.userfront.reset.success'));
         context.go(buildLocalizedSigninPath(Uri.base));
@@ -98,7 +101,7 @@ class _ResetPasswordScreenState extends State<ResetPasswordScreen> {
         );
       }
     } finally {
-      if (mounted) {
+      if (mounted && !isSuccess) {
         setState(() => _isLoading = false);
       }
     }

userfront/lib/features/profile/presentation/pages/profile_page.dart

@@ -5,6 +5,7 @@ import 'package:logging/logging.dart';
 import 'package:userfront/i18n.dart';
 import '../../../../core/notifiers/auth_notifier.dart';
 import '../../../../core/i18n/locale_utils.dart';
+import '../../../../core/services/auth_proxy_service.dart';
 import '../../../../core/services/auth_token_store.dart';
 import '../../../../core/ui/layout_breakpoints.dart';
 import '../../../../core/ui/toast_service.dart';
@@ -54,10 +55,80 @@ class _ProfilePageState extends ConsumerState<ProfilePage> {
   bool _showCurrentPassword = false;
   bool _showNewPassword = false;
   bool _showConfirmPassword = false;
+  Map<String, dynamic>? _passwordPolicy;
+  bool _isPasswordPolicyLoading = false;
 
   @override
   void initState() {
     super.initState();
+    _loadPasswordPolicy();
+  }
+
+  Future<void> _loadPasswordPolicy() async {
+    setState(() {
+      _isPasswordPolicyLoading = true;
+    });
+    try {
+      final policy = await AuthProxyService.fetchPasswordPolicy();
+      if (mounted) {
+        setState(() {
+          _passwordPolicy = policy;
+        });
+      }
+    } catch (_) {
+      // 정책 조회 실패 시 기본 검증 규칙 사용
+    } finally {
+      if (mounted) {
+        setState(() {
+          _isPasswordPolicyLoading = false;
+        });
+      }
+    }
+  }
+
+  String _buildPasswordPolicyDescription() {
+    if (_isPasswordPolicyLoading) {
+      return tr('msg.userfront.signup.policy.loading');
+    }
+
+    final minLength = (_passwordPolicy?['minLength'] as int?) ?? 12;
+    final minTypes = (_passwordPolicy?['minCharacterTypes'] as int?) ?? 0;
+    final requiresLower = _passwordPolicy?['lowercase'] ?? true;
+    final requiresUpper = _passwordPolicy?['uppercase'] ?? false;
+    final requiresNumber = _passwordPolicy?['number'] ?? true;
+    final requiresSymbol = _passwordPolicy?['nonAlphanumeric'] ?? true;
+
+    final parts = <String>[
+      tr(
+        'msg.userfront.signup.policy.min_length',
+        params: {'count': '$minLength'},
+      ),
+    ];
+    if (minTypes > 0) {
+      parts.add(
+        tr(
+          'msg.userfront.signup.policy.min_types',
+          params: {'count': '$minTypes'},
+        ),
+      );
+    }
+    if (requiresLower) {
+      parts.add(tr('msg.userfront.signup.policy.lowercase'));
+    }
+    if (requiresUpper) {
+      parts.add(tr('msg.userfront.signup.policy.uppercase'));
+    }
+    if (requiresNumber) {
+      parts.add(tr('msg.userfront.signup.policy.number'));
+    }
+    if (requiresSymbol) {
+      parts.add(tr('msg.userfront.signup.policy.symbol'));
+    }
+
+    return tr(
+      'msg.userfront.signup.policy.summary',
+      params: {'rules': parts.join(", ")},
+    );
   }
 
   void _debugLog(
@@ -267,6 +338,62 @@ class _ProfilePageState extends ConsumerState<ProfilePage> {
       );
       return;
     }
+
+    final minLength = (_passwordPolicy?['minLength'] as int?) ?? 12;
+    final minTypes = (_passwordPolicy?['minCharacterTypes'] as int?) ?? 0;
+    final hasLower = RegExp(r'[a-z]').hasMatch(newPassword);
+    final hasUpper = RegExp(r'[A-Z]').hasMatch(newPassword);
+    final hasNumber = RegExp(r'[0-9]').hasMatch(newPassword);
+    final hasSymbol = RegExp(r'[\W_]').hasMatch(newPassword);
+    int typeCount = 0;
+    if (hasLower) typeCount++;
+    if (hasUpper) typeCount++;
+    if (hasNumber) typeCount++;
+    if (hasSymbol) typeCount++;
+
+    if (newPassword.length < minLength) {
+      setState(
+        () => _passwordError = tr(
+          'msg.userfront.reset.error.min_length',
+          params: {'count': '$minLength'},
+        ),
+      );
+      return;
+    }
+    if (minTypes > 0 && typeCount < minTypes) {
+      setState(
+        () => _passwordError = tr(
+          'msg.userfront.reset.error.min_types',
+          params: {'count': '$minTypes'},
+        ),
+      );
+      return;
+    }
+    if ((_passwordPolicy?['lowercase'] ?? true) && !hasLower) {
+      setState(
+        () => _passwordError = tr('msg.userfront.reset.error.lowercase'),
+      );
+      return;
+    }
+    if ((_passwordPolicy?['uppercase'] ?? false) && !hasUpper) {
+      setState(
+        () => _passwordError = tr('msg.userfront.reset.error.uppercase'),
+      );
+      return;
+    }
+    if ((_passwordPolicy?['number'] ?? true) && !hasNumber) {
+      setState(
+        () => _passwordError = tr('msg.userfront.reset.error.number'),
+      );
+      return;
+    }
+    if ((_passwordPolicy?['nonAlphanumeric'] ?? true) && !hasSymbol) {
+      setState(
+        () => _passwordError = tr('msg.userfront.reset.error.symbol'),
+      );
+      return;
+    }
+
     if (newPassword != confirmPassword) {
       setState(
         () => _passwordError = tr('msg.userfront.profile.password.mismatch'),
@@ -853,6 +980,11 @@ class _ProfilePageState extends ConsumerState<ProfilePage> {
             tr('msg.userfront.profile.password.subtitle'),
             style: const TextStyle(color: Color(0xFF6B7280)),
           ),
+          const SizedBox(height: 8),
+          Text(
+            _buildPasswordPolicyDescription(),
+            style: const TextStyle(color: Color(0xFF6B7280), fontSize: 12),
+          ),
           const SizedBox(height: 16),
           TextField(
             controller: _currentPasswordController,