fix: 平台配置页面修复 - 隐藏LDAP重复分组、敏感字段列表textarea多行展示、分组排序优化

- 过滤ldap分组（有独立LDAP页面不重复展示）
- 敏感字段列表从单行input改为textarea每行一个字段名（key修正data_masking_sensitive_fields）
- 添加GROUP_ORDER固定展示顺序：查询控制→安全策略→数据脱敏→日志清理→执行器→Ghost/OSC
- 所有分组输入框均有默认值，cleanup组retention天数输入框正常显示

frontend/src/pages/PlatformConfigPage.tsx

@@ -16,17 +16,23 @@ interface SettingItem {
 type SettingsMap = Record<string, SettingItem[]>;
 
 /* ── 清理操作子组件 ── */
+interface CleanupPreviewItem { count: number; days: number }
 function CleanupActions() {
-  const [preview, setPreview] = useState<Record<string, number> | null>(null);
+  const [preview, setPreview] = useState<Record<string, CleanupPreviewItem> | null>(null);
   const [loading, setLoading] = useState(false);
   const [cleaning, setCleaning] = useState(false);
   const [result, setResult] = useState<string>('');
 
+  const LABEL_MAP: Record<string, string> = {
+    tickets: '工单', audit_logs: '审计日志',
+    query_history: '查询历史', slow_logs: '慢日志',
+  };
+
   const handlePreview = async () => {
     setLoading(true);
     setResult('');
     try {
-      const res = await api.get('/settings/cleanup/preview') as Record<string, number>;
+      const res = await api.get('/settings/cleanup/preview') as Record<string, CleanupPreviewItem>;
       setPreview(res);
     } catch {
       setResult('预览失败');
@@ -67,7 +73,7 @@ function CleanupActions() {
       {preview && (
         <div className="text-xs text-[var(--dg-text-muted)] space-y-1">
           {Object.entries(preview).map(([k, v]) => (
-            <div key={k}>{k}: <span className="text-[var(--dg-text-primary)] font-medium">{v}</span> 条</div>
+            <div key={k}>{LABEL_MAP[k] || k}（保留 {v.days} 天）: <span className="text-[var(--dg-text-primary)] font-medium">{v.count}</span> 条待清理</div>
           ))}
         </div>
       )}
@@ -78,7 +84,11 @@ function CleanupActions() {
   );
 }
 
-/* ── 分组元信息 ── */
+// 隐藏的分组（有独立页面的不在平台配置中展示）
+const HIDDEN_GROUPS = new Set(['ldap', 'appearance']);
+
+/* ── 分组元信息 + 展示顺序 ── */
+const GROUP_ORDER = ['query', 'security', 'data_masking', 'cleanup', 'executor', 'ghost'];
 const GROUP_META: Record<string, { label: string; icon: string; desc: string }> = {
   query: { label: '查询控制', icon: '🔍', desc: 'LIMIT 上限、超时、自动 LIMIT、危险检测' },
   security: { label: '安全策略', icon: '🔒', desc: '登录锁定、密码策略、会话超时' },
@@ -139,7 +149,8 @@ export default function PlatformConfigPage() {
     return <div className="text-center py-20 text-[var(--dg-text-muted)]">加载中...</div>;
   }
 
-  const groupKeys = Object.keys(settings);
+  // 按 GROUP_ORDER 排序，过滤隐藏分组
+  const visibleGroups = GROUP_ORDER.filter(g => settings[g]);
   const hasChanges = Object.keys(changed).length > 0;
 
   return (
@@ -156,9 +167,9 @@ export default function PlatformConfigPage() {
       )}
 
       {/* 各分组 */}
-      {groupKeys.map(group => {
+      {visibleGroups.map(group => {
         const meta = GROUP_META[group] || { label: group, icon: '⚙️', desc: '' };
-        const items = settings[group] || [];
+        const items = (settings[group] || []).filter((it: SettingItem) => !HIDDEN_GROUPS.has(it.group));
 
         return (
           <div key={group} className="bg-[var(--dg-bg-secondary)] rounded-xl overflow-hidden">
@@ -173,19 +184,22 @@ export default function PlatformConfigPage() {
 
             {/* 设置项列表 */}
             <div className="px-5 pb-4 space-y-3">
-              {items.map(item => {
+              {items.map((item: SettingItem) => {
                 const val = displayValue(item);
                 const isChanged = changed[item.key] !== undefined;
+                // 敏感字段列表 → textarea 多行展示
+                const isSensitiveList = item.key === 'data_masking_sensitive_fields';
 
                 return (
-                  <div key={item.key} className="flex items-center justify-between gap-4 py-2">
+                  <div key={item.key} className={isSensitiveList ? 'py-2' : 'flex items-center justify-between gap-4 py-2'}>
-                    <div className="flex-1 min-w-0">
+                    <div className={isSensitiveList ? 'mb-2' : 'flex-1 min-w-0'}>
                       <div className="text-sm text-[var(--dg-text-primary)]">{item.label}</div>
                       {item.description && (
                         <div className="text-xs text-[var(--dg-text-muted)] mt-0.5">{item.description}</div>
                       )}
                     </div>
 
+                    {!isSensitiveList && (
                     <div className="flex items-center gap-2 shrink-0">
                       {/* 重置按钮 */}
                       {isChanged && item.default_value && (
@@ -212,8 +226,8 @@ export default function PlatformConfigPage() {
                         </button>
                       )}
 
-                      {/* 整数 → 数字输入 */}
+                      {/* 整数/数字 → 数字输入 */}
-                      {item.value_type === 'integer' && (
+                      {(item.value_type === 'integer' || item.value_type === 'number') && (
                         <input
                           type="number"
                           value={parseInt(val) || 0}
@@ -224,7 +238,7 @@ export default function PlatformConfigPage() {
                         />
                       )}
 
-                      {/* 字符串 → 文本 */}
+                      {/* 普通字符串 → 文本 */}
                       {item.value_type === 'string' && (
                         <input
                           type="text"
@@ -241,6 +255,19 @@ export default function PlatformConfigPage() {
                         <span className="w-1.5 h-1.5 rounded-full bg-emerald-500" />
                       )}
                     </div>
+                    )}
+
+                    {/* 敏感字段列表 → textarea 每行一个字段 */}
+                    {isSensitiveList && (
+                      <textarea
+                        rows={Math.min(8, Math.max(3, val.split(',').length))}
+                        value={val.split(',').map((s: string) => s.trim()).join('\n')}
+                        onChange={e => handleChange(item.key, e.target.value.split('\n').map((s: string) => s.trim()).filter(Boolean).join(','))}
+                        className={`w-full px-3 py-2 rounded-lg text-xs font-mono bg-[var(--dg-bg-tertiary)] text-[var(--dg-text-primary)] outline-none resize-y ${
+                          isChanged ? 'ring-1 ring-emerald-500/50' : ''
+                        }`}
+                      />
+                    )}
                   </div>
                 );
               })}