fix: harden real backend workflows and channel connections

src/apps/client/ClientApplicationsPage.tsx

@@ -146,7 +146,7 @@ export function ClientApplicationsPage() {
                   <dd>{formatPrice(application.customerUnitPrice)}</dd>
                 </div>
                 <div>
-                  <dt>CMPP链接状态</dt>
+                  <dt>CMPP连接状态</dt>
                   <dd><Tag tone={statusToneMap[linkStatus]}>{statusLabelMap[linkStatus]}</Tag></dd>
                 </div>
               </dl>

src/apps/client/ClientEnterpriseAuthPage.tsx

@@ -8,8 +8,8 @@ import {
   Upload,
   UserCheck,
 } from 'lucide-react';
-import { Button, Input, Select, Textarea } from '@/components/ui';
-import { clientApi, type EnterpriseCertification, type FileObject } from '@/api/adminApi';
+import { Button, FileActions, Input, Select, Textarea } from '@/components/ui';
+import { clientApi, type EnterpriseCertification, type FileObject, type FileRef } from '@/api/adminApi';
 
 type AuthStep = 'overview' | 'profile' | 'method' | 'recharge' | 'face' | 'faceScan' | 'pending' | 'success' | 'failed';
 type AuthMethod = 'face' | 'recharge';
@@ -52,10 +52,15 @@ const emptyCertificationForm: CertificationForm = {
 };
 
 function UploadPanel({ file, uploading, onFile }: { file: FileObject | null; uploading: boolean; onFile: (file: File | undefined) => void }) {
+  const fileRef: FileRef | null = file
+    ? { contentType: file.contentType, fileName: file.fileName, fileObjectId: file.id }
+    : null;
+
   return (
     <label className="enterprise-upload">
       <Upload size={38} />
       <strong>{uploading ? '上传中...' : file?.fileName ?? '点击上传'}</strong>
+      <FileActions file={fileRef} />
       <input
         accept="image/png,image/jpeg,image/webp,application/pdf"
         disabled={uploading}
@@ -203,6 +208,7 @@ export function ClientEnterpriseAuthPage() {
       materials: {
         licenseFileObjectId: licenseFile?.id,
         licenseFileName: licenseFile?.fileName,
+        licenseFileContentType: licenseFile?.contentType,
         province: form.province,
         city: form.city,
         address: form.address,

src/apps/client/ClientSendPage.tsx

@@ -1,5 +1,5 @@
 import { useEffect, useMemo, useState } from 'react';
-import { Check, FileText, Plus, Search, Send, Trash2 } from 'lucide-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';
 
@@ -29,6 +29,7 @@ export function ClientSendPage() {
   const [recipients, setRecipients] = useState<Recipient[]>([{ id: '1', phone: '' }]);
   const [importContent, setImportContent] = useState('');
   const [importFileName, setImportFileName] = useState('');
+  const [importFileUrl, setImportFileUrl] = useState('');
   const [importPreview, setImportPreview] = useState<ImportPreviewResponse | null>(null);
   const [importLoading, setImportLoading] = useState(false);
   const [submittedRecord, setSubmittedRecord] = useState<SmsBatchTask | null>(null);
@@ -44,6 +45,12 @@ export function ClientSendPage() {
       .catch((reason: Error) => setError(reason.message || '短信发送基础数据加载失败'));
   }, []);
 
+  useEffect(() => () => {
+    if (importFileUrl) {
+      URL.revokeObjectURL(importFileUrl);
+    }
+  }, [importFileUrl]);
+
   const selectedSignature = useMemo(
     () => signatures.find((item) => item.id === signatureId),
     [signatures, signatureId],
@@ -133,10 +140,22 @@ export function ClientSendPage() {
       });
       setImportContent(content);
       setImportFileName(file.name);
+      setImportFileUrl((current) => {
+        if (current) {
+          URL.revokeObjectURL(current);
+        }
+        return URL.createObjectURL(file);
+      });
       setImportPreview(preview);
     } catch (reason) {
       setImportContent('');
       setImportFileName('');
+      setImportFileUrl((current) => {
+        if (current) {
+          URL.revokeObjectURL(current);
+        }
+        return '';
+      });
       setImportPreview(null);
       setError(reason instanceof Error ? reason.message : '导入预览失败');
     } finally {
@@ -294,7 +313,17 @@ export function ClientSendPage() {
                 <Button disabled={importLoading || !templateId} onClick={() => document.getElementById('sms-import-file')?.click()} variant="ghost">
                   {importLoading ? '解析中...' : '选择文件'}
                 </Button>
-                {importFileName ? <span>文件：{importFileName}</span> : null}
+                {importFileName ? (
+                  <span>
+                    文件：{importFileName}
+                    {importFileUrl ? (
+                      <a className="file-action-link" download={importFileName} href={importFileUrl}>
+                        <Download size={14} />
+                        下载
+                      </a>
+                    ) : null}
+                  </span>
+                ) : null}
                 {importPreview ? (
                   <div className="detail-grid">
                     <div><span>总行数</span><strong>{importPreview.totalRows}</strong></div>

src/apps/client/ClientSignaturesPage.tsx

@@ -1,7 +1,7 @@
 import { useEffect, useMemo, useState } from 'react';
 import { FilePenLine, Plus, Search, Trash2, Upload } from 'lucide-react';
-import { Button, Input, Modal, Select, Tag } from '@/components/ui';
-import { clientApi, type ClientSmsApplication, type ClientSmsSignature } from '@/api/adminApi';
+import { Button, FileActions, Input, Modal, Select, Tag } from '@/components/ui';
+import { clientApi, type ClientSmsApplication, type ClientSmsSignature, type FileRef } from '@/api/adminApi';
 
 const statusTone: Record<string, 'success' | 'info' | 'danger' | 'warning'> = {
   approved: 'success',
@@ -18,6 +18,14 @@ const statusLabel: Record<string, string> = {
   disabled: '已禁用',
 };
 
+function materialToFileRef(material: Record<string, unknown>): FileRef | null {
+  const fileObjectId = String(material.fileObjectId ?? '');
+  if (!fileObjectId) return null;
+  const fileName = String(material.title ?? material.fileName ?? '签名材料');
+  const contentType = typeof material.contentType === 'string' ? material.contentType : undefined;
+  return { contentType, fileName, fileObjectId };
+}
+
 export function ClientSignaturesPage() {
   const [applications, setApplications] = useState<ClientSmsApplication[]>([]);
   const [signatures, setSignatures] = useState<ClientSmsSignature[]>([]);
@@ -124,6 +132,9 @@ export function ClientSignaturesPage() {
               <div>
                 <span>材料</span>
                 <strong>{signature.materials?.length ?? 0} 份</strong>
+                {signature.materials?.map((material) => (
+                  <FileActions file={materialToFileRef(material)} key={String(material.id ?? material.fileObjectId)} />
+                ))}
               </div>
               <div className="signature-actions">
                 <Button icon={<Trash2 size={16} />} onClick={() => disableSignature(signature.id)} size="sm" variant="danger">删除</Button>