연동 ㅎ해지 UI 및 서비스 로직 구현

userfront/lib/core/services/auth_proxy_service.dart

@@ -594,6 +594,44 @@ class AuthProxyService {
     }
   }
 
+  static Future<List<dynamic>> fetchLinkedRps() async {
+    final url = Uri.parse('$_baseUrl/api/v1/user/rp/linked');
+    final client = createHttpClient(withCredentials: true);
+    try {
+      final response = await client.get(
+        url,
+        headers: {'Content-Type': 'application/json'},
+      );
+
+      if (response.statusCode == 200) {
+        final data = jsonDecode(response.body);
+        return data['items'] ?? [];
+      } else {
+        throw Exception('연동된 앱 목록을 불러오지 못했습니다.');
+      }
+    } finally {
+      client.close();
+    }
+  }
+
+  static Future<void> revokeLinkedRp(String clientId) async {
+    final url = Uri.parse('$_baseUrl/api/v1/user/rp/linked/$clientId');
+    final client = createHttpClient(withCredentials: true);
+    try {
+      final response = await client.delete(
+        url,
+        headers: {'Content-Type': 'application/json'},
+      );
+
+      if (response.statusCode != 200) {
+        final errorBody = jsonDecode(response.body);
+        throw Exception(errorBody['error'] ?? '연동 해지에 실패했습니다.');
+      }
+    } finally {
+      client.close();
+    }
+  }
+
   static Future<void> sendLog(String level, String message, {Map<String, dynamic>? data}) async {
     if (!_canSendClientLog()) {
       return;

userfront/lib/features/dashboard/presentation/dashboard_screen.dart

@@ -7,6 +7,7 @@ import 'package:flutter_dotenv/flutter_dotenv.dart';
 import '../../../../core/notifiers/auth_notifier.dart';
 import '../../../../core/services/auth_token_store.dart';
 import '../../../../core/services/http_client.dart';
+import '../../../../core/services/auth_proxy_service.dart';
 import '../../../../core/ui/layout_breakpoints.dart';
 import '../../profile/domain/notifiers/profile_notifier.dart';
 
@@ -159,6 +160,7 @@ class _DashboardScreenState extends ConsumerState<DashboardScreen> {
   bool _auditLoading = false;
   bool _auditLoadingMore = false;
   String? _auditError;
+  bool _isRevoking = false;
 
   Future<List<LinkedRp>>? _linkedRpsFuture;
   bool _showAllActivities = false;
@@ -182,6 +184,50 @@ class _DashboardScreenState extends ConsumerState<DashboardScreen> {
     AuthNotifier.instance.notify();
   }
 
+  Future<void> _onRevokeLink(String clientId, String appName) async {
+    final confirmed = await showDialog<bool>(
+      context: context,
+      builder: (context) => AlertDialog(
+        title: const Text('연동 해지'),
+        content: Text('$appName 앱과의 연동을 해지하시겠습니까?\n해지하면 다음 로그인 시 다시 동의가 필요합니다.'),
+        actions: [
+          TextButton(
+            onPressed: () => Navigator.of(context).pop(false),
+            child: const Text('취소'),
+          ),
+          TextButton(
+            onPressed: () => Navigator.of(context).pop(true),
+            style: TextButton.styleFrom(foregroundColor: Colors.red),
+            child: const Text('해지하기'),
+          ),
+        ],
+      ),
+    );
+
+    if (confirmed != true) return;
+
+    setState(() => _isRevoking = true);
+    try {
+      await AuthProxyService.revokeLinkedRp(clientId);
+      if (mounted) {
+        ScaffoldMessenger.of(context).showSnackBar(
+          SnackBar(content: Text('$appName 연동이 해지되었습니다.')),
+        );
+        _refreshAll();
+      }
+    } catch (e) {
+      if (mounted) {
+        ScaffoldMessenger.of(context).showSnackBar(
+          SnackBar(content: Text('해지 실패: $e')),
+        );
+      }
+    } finally {
+      if (mounted) {
+        setState(() => _isRevoking = false);
+      }
+    }
+  }
+
   void _onScanQR() {
     context.push('/scan');
   }
@@ -828,10 +874,12 @@ class _DashboardScreenState extends ConsumerState<DashboardScreen> {
       final name = rp.name.isNotEmpty ? rp.name : rp.id;
       items.add(
         _ActivityItem(
+          clientId: rp.id,
           appName: name,
           lastAuthAt: lastAuthLabel,
           status: statusLabel,
           canLogout: false,
+          onRevoke: () => _onRevokeLink(rp.id, name),
         ),
       );
     }
@@ -929,16 +977,39 @@ class _DashboardScreenState extends ConsumerState<DashboardScreen> {
             style: const TextStyle(fontSize: 14, fontWeight: FontWeight.w600, color: _ink),
           ),
           const SizedBox(height: 16),
-          SizedBox(
-            width: double.infinity,
-            child: OutlinedButton(
-              onPressed: item.canLogout ? item.onLogout : null,
-              style: OutlinedButton.styleFrom(
-                foregroundColor: _ink,
-                side: const BorderSide(color: _border),
+          Row(
+            children: [
+              if (item.canLogout)
+                Expanded(
+                  child: OutlinedButton(
+                    onPressed: item.onLogout,
+                    style: OutlinedButton.styleFrom(
+                      foregroundColor: _ink,
+                      side: const BorderSide(color: _border),
+                      padding: const EdgeInsets.symmetric(vertical: 8),
+                    ),
+                    child: const Text('로그아웃', style: TextStyle(fontSize: 13)),
+                  ),
+                ),
+              if (item.canLogout) const SizedBox(width: 8),
+              Expanded(
+                child: OutlinedButton(
+                  onPressed: _isRevoking ? null : item.onRevoke,
+                  style: OutlinedButton.styleFrom(
+                    foregroundColor: Colors.redAccent,
+                    side: const BorderSide(color: Colors.redAccent, width: 0.5),
+                    padding: const EdgeInsets.symmetric(vertical: 8),
+                  ),
+                  child: _isRevoking
+                      ? const SizedBox(
+                          width: 14,
+                          height: 14,
+                          child: CircularProgressIndicator(strokeWidth: 2, color: Colors.redAccent),
+                        )
+                      : const Text('연동 해지', style: TextStyle(fontSize: 13)),
+                ),
               ),
-              child: const Text('로그아웃'),
-            ),
+            ],
           ),
         ],
       ),
@@ -1136,17 +1207,21 @@ class _DashboardScreenState extends ConsumerState<DashboardScreen> {
 }
 
 class _ActivityItem {
+  final String clientId;
   final String appName;
   final String lastAuthAt;
   final String status;
   final bool canLogout;
   final VoidCallback? onLogout;
+  final VoidCallback? onRevoke;
 
   _ActivityItem({
+    required this.clientId,
     required this.appName,
     required this.lastAuthAt,
     required this.status,
     required this.canLogout,
     this.onLogout,
+    this.onRevoke,
   });
 }