Harden auth risk controls and admin reauth

templates/admin_legacy.html

@@ -1355,6 +1355,7 @@
                             <option value="reset">密码重置</option>
                             <option value="bind">邮箱绑定</option>
                             <option value="task_complete">任务完成</option>
+                            <option value="security_alert">安全告警</option>
                         </select>
                         <select id="emailLogStatusFilter" onchange="loadEmailLogs()" style="padding: 6px 10px; border: 1px solid #ddd; border-radius: 5px; font-size: 12px;">
                             <option value="">全部状态</option>
@@ -3424,7 +3425,8 @@
                 'register': '注册验证',
                 'reset': '密码重置',
                 'bind': '邮箱绑定',
-                'task_complete': '任务完成'
+                'task_complete': '任务完成',
+                'security_alert': '安全告警'
             };
 
             let html = '<div class="table-container"><table style="width: 100%; font-size: 12px;"><thead><tr>';