添加 刷新通讯录功能，用于解决冗余数据问题。

admin/dashboard/blueprints/contacts.py

@@ -163,4 +163,21 @@ def api_group_members(roomid):
         })
     except Exception as e:
         logger.error(f"获取群成员列表失败: {e}")
-        return jsonify({"success": False, "error": str(e)}), 500
+        return jsonify({"success": False, "error": str(e)}), 500
+
+
+@contacts_bp.route('/api/update', methods=['POST'])
+@login_required
+def api_contacts_update():
+    """更新通讯录信息API"""
+    try:
+        server = current_app.dashboard_server
+        # 假设 contact_manager 有 update_contacts 方法用于同步通讯录
+        result = server.robot.refresh_contacts_db()
+        if result:
+            return jsonify({"success": True, "message": "通讯录更新成功"})
+        else:
+            return jsonify({"success": False, "message": "通讯录更新失败"}), 500
+    except Exception as e:
+        logger.error(f"更新通讯录失败: {e}")
+        return jsonify({"success": False, "message": f"更新通讯录失败: {str(e)}"}), 500