refactor: 设置页面调整-退休提醒独立tab+显示设置并入企业信息

- 退休提醒从企业信息中拆分为独立tab（RetirementSettings 独立 Card 组件）
- 显示设置从独立tab移入企业信息卡片底部（移除 DisplaySettings 组件）
- tab顺序：企业信息、用户管理、套餐、通知设置、退休提醒、数据导入、数据导出

frontend/src/pages/Settings.tsx

@@ -14,7 +14,7 @@ import { useConfirm } from '../hooks/useConfirm'
 
 export default function Settings() {
   const queryClient = useQueryClient()
-  const [activeSection, setActiveSection] = useState<'org' | 'users' | 'plan' | 'notifications' | 'import' | 'export' | 'display'>('org')
+  const [activeSection, setActiveSection] = useState<'org' | 'users' | 'plan' | 'notifications' | 'retirement' | 'import' | 'export'>('org')
 
   const { data: orgData } = useQuery<any>({
     queryKey: ['org-settings'],
@@ -40,9 +40,9 @@ export default function Settings() {
     { key: 'users' as const, label: '用户管理', icon: Users },
     { key: 'plan' as const, label: '套餐', icon: CreditCard },
     { key: 'notifications' as const, label: '通知设置', icon: Bell },
+    { key: 'retirement' as const, label: '退休提醒', icon: Clock },
     { key: 'import' as const, label: '数据导入', icon: FileSpreadsheet },
     { key: 'export' as const, label: '数据导出', icon: Download },
-    { key: 'display' as const, label: '显示设置', icon: LayoutGrid },
   ]
 
   return (
@@ -79,14 +79,17 @@ export default function Settings() {
       {activeSection === 'users' && <UserSettings usersData={usersData} />}
       {activeSection === 'plan' && <PlanSettings orgData={orgData} />}
       {activeSection === 'notifications' && <NotificationSettings />}
+      {activeSection === 'retirement' && (
+        <RetirementSettings orgData={orgData} onSave={(data) => updateOrgMutation.mutate(data)} />
+      )}
       {activeSection === 'import' && <ImportSettings />}
       {activeSection === 'export' && <ExportSettings />}
-      {activeSection === 'display' && <DisplaySettings />}
     </div>
   )
 }
 
 function OrgSettings({ orgData, onSave, saving }: { orgData: any; onSave: (data: any) => void; saving: boolean }) {
+  const [pageSize, setPageSize] = useState(getPageSize())
   const [form, setForm] = useState({
     name: '',
     contactName: '',
@@ -144,44 +147,36 @@ function OrgSettings({ orgData, onSave, saving }: { orgData: any; onSave: (data:
         </Button>
       </div>
 
-      <RetirementSection enabled={form.retirementReminderEnabled} onToggle={(v) => { setForm({ ...form, retirementReminderEnabled: v }); onSave({ ...form, retirementReminderEnabled: v }) }} />
-
-      {/* 电子签设置 */}
+      {/* 显示设置 */}
       <div className="mt-6 pt-6 border-t">
         <div className="flex items-center gap-2 mb-4">
-          <PenTool className="w-5 h-5 text-primary" />
-          <h3 className="font-medium">电子签署设置</h3>
+          <LayoutGrid className="w-5 h-5 text-primary" />
+          <h3 className="font-medium">显示设置</h3>
         </div>
-        <p className="text-xs text-gray-500 mb-3">开启后，对应场景将使用电子签署替代默认确认方式。关闭则保持原有确认方式（阅读确认/点击确认）。</p>
-        <div className="space-y-3">
-          {[
-            { key: 'esignPolicyEnabled', label: '规章制度电子签', desc: '开启后制度签收升级为电子签署，缺省为阅读确认' },
-            { key: 'esignPayslipEnabled', label: '工资条电子签', desc: '开启后工资条确认升级为电子签署，缺省为点击确认' },
-            { key: 'esignOnboardingEnabled', label: '入职文件电子签', desc: '开启后入职填报时签署入职相关文件，缺省不签' },
-          ].map(item => (
-            <div key={item.key} className="flex items-center justify-between p-3 rounded-lg bg-gray-50">
-              <div>
-                <div className="text-sm font-medium">{item.label}</div>
-                <div className="text-xs text-gray-500 mt-0.5">{item.desc}</div>
-              </div>
-              <button
-                type="button"
-                onClick={() => { const v = !form[item.key as keyof typeof form]; setForm({ ...form, [item.key]: v }); onSave({ ...form, [item.key]: v }) }}
-                className={`relative inline-flex h-6 w-11 items-center rounded-full transition-colors shrink-0 ml-4 ${form[item.key as keyof typeof form] ? 'bg-primary' : 'bg-gray-300'}`}
-              >
-                <span className={`inline-block h-4 w-4 transform rounded-full bg-white transition-transform ${form[item.key as keyof typeof form] ? 'translate-x-6' : 'translate-x-1'}`} />
-              </button>
+        <div className="space-y-4">
+          <div>
+            <Label>列表分页大小</Label>
+            <p className="text-xs text-gray-500 mt-1 mb-2">设置所有列表页面每页显示的记录条数，保存后立即生效</p>
+            <div className="flex items-center gap-3">
+              <Select value={String(pageSize)} onChange={(e) => setPageSize(parseInt(e.target.value, 10))} className="!w-32">
+                <option value="10">10 条/页</option>
+                <option value="20">20 条/页</option>
+                <option value="50">50 条/页</option>
+                <option value="100">100 条/页</option>
+              </Select>
+              <Button size="sm" onClick={() => { setGlobalPageSize(pageSize); toast.success(`分页大小已设置为 ${pageSize} 条/页`) }}>保存</Button>
             </div>
-          ))}
+          </div>
         </div>
       </div>
     </Card>
   )
 }
 
-function RetirementSection({ enabled, onToggle }: { enabled: boolean; onToggle: (v: boolean) => void }) {
+function RetirementSettings({ orgData, onSave }: { orgData: any; onSave: (data: any) => void }) {
   const queryClient = useQueryClient()
   const [confirming, setConfirming] = useState(false)
+  const enabled = orgData?.retirementReminderEnabled || false
 
   const { data: policyData, isLoading } = useQuery<any>({
     queryKey: ['retirement-policy'],
@@ -229,7 +224,7 @@ function RetirementSection({ enabled, onToggle }: { enabled: boolean; onToggle:
   )
 
   return (
-    <div className="mt-6 pt-6 border-t">
+    <Card>
       <div className="flex items-center justify-between mb-4">
         <div className="flex items-center gap-2">
           <Clock className="w-5 h-5 text-primary" />
@@ -248,7 +243,7 @@ function RetirementSection({ enabled, onToggle }: { enabled: boolean; onToggle:
           <span className="text-sm text-gray-500">{enabled ? '已开启' : '未开启'}</span>
           <button
             type="button"
-            onClick={() => onToggle(!enabled)}
+            onClick={() => onSave({ retirementReminderEnabled: !enabled })}
             className={`relative inline-flex h-6 w-11 items-center rounded-full transition-colors ${enabled ? 'bg-primary' : 'bg-gray-300'}`}
           >
             <span className={`inline-block h-4 w-4 transform rounded-full bg-white transition-transform ${enabled ? 'translate-x-6' : 'translate-x-1'}`} />
@@ -293,7 +288,7 @@ function RetirementSection({ enabled, onToggle }: { enabled: boolean; onToggle:
           {isLoading && <p className="text-sm text-gray-400 text-center">加载中...</p>}
         </div>
       )}
-    </div>
+    </Card>
   )
 }
 
@@ -1327,32 +1322,3 @@ function MonthlyImport() {
   )
 }
 
-function DisplaySettings() {
-  const [size, setSize] = useState(getPageSize())
-
-  const handleSave = () => {
-    setGlobalPageSize(size)
-    toast.success(`分页大小已设置为 ${size} 条/页`)
-  }
-
-  return (
-    <Card>
-      <h2 className="text-sm font-medium mb-4">显示设置</h2>
-      <div className="space-y-4">
-        <div>
-          <Label>列表分页大小</Label>
-          <p className="text-xs text-gray-500 mt-1 mb-2">设置所有列表页面每页显示的记录条数，保存后立即生效</p>
-          <div className="flex items-center gap-3">
-            <Select value={String(size)} onChange={(e) => setSize(parseInt(e.target.value, 10))} className="!w-32">
-              <option value="10">10 条/页</option>
-              <option value="20">20 条/页</option>
-              <option value="50">50 条/页</option>
-              <option value="100">100 条/页</option>
-            </Select>
-            <Button size="sm" onClick={handleSave}>保存</Button>
-          </div>
-        </div>
-      </div>
-    </Card>
-  )
-}