fix: close documented platform polish gaps

src/apps/client/ClientSendPage.tsx

@@ -2,6 +2,7 @@ import { useEffect, useMemo, useState } from 'react';
 import { Check, Download, FileText, Plus, Search, Send, Trash2 } from 'lucide-react';
 import { Button, DateTimeInput, Input, Modal, Select, Tag, Textarea } from '@/components/ui';
 import { clientApi, type ClientSmsApplication, type ClientSmsSignature, type ClientSmsTemplate, type ImportPreviewResponse, type SmsBatchTask } from '@/api/adminApi';
+import { formatCents } from '@/utils/currency';
 
 type Recipient = {
   id: string;
@@ -59,6 +60,10 @@ export function ClientSendPage() {
     () => templates.find((item) => item.id === templateId),
     [templates, templateId],
   );
+  const selectedApplication = useMemo(
+    () => applications.find((item) => item.id === applicationId),
+    [applicationId, applications],
+  );
   const filteredTemplates = templates.filter((item) => (
     item.name.includes(templateKeyword) || item.content.includes(templateKeyword)
   ));
@@ -378,7 +383,7 @@ export function ClientSendPage() {
             </div>
             <div>
               <span>单价</span>
-              <strong>¥0.05 / 人</strong>
+              <strong>¥{formatCents(selectedApplication?.customerUnitPrice)} / 人</strong>
             </div>
           </div>
           <div className="preview-note">短信按 70 字/条计费，超出部分按 67 字/条计算</div>