feat(dongchedi): translate platform "server exception" into actionable copy

Map dongchedi adapter failures (raw "server exception" or
dongchedi_platform_exception) to a Chinese prompt steering the user to
the dongchedi backend, so renderer/admin views and desktop-task error
payloads no longer surface the opaque platform message.

apps/admin-web/src/views/PublishManagementView.vue

@@ -24,6 +24,8 @@ import { getPublishPlatformMeta, normalizePublishPlatformId } from '@/lib/publis
 const PAGE_SIZE = 10
 const INLINE_ERROR_HEAD_CHARS = 52
 const INLINE_ERROR_TAIL_CHARS = 10
+const DONGCHEDI_PLATFORM_EXCEPTION_MESSAGE =
+  '懂车帝平台返回异常，请打开懂车帝后台查看并处理平台提示，确认账号状态后再重试。'
 
 type PublishTaskStatus = DesktopTaskInfo['status']
 
@@ -93,7 +95,7 @@ function isPendingStatus(status: PublishTaskStatus): boolean {
   return status === 'queued' || status === 'in_progress'
 }
 
-function normalizeTaskErrorMessage(messageText: string | null): string | null {
+function normalizeTaskErrorMessage(messageText: string | null, platform?: string | null): string | null {
   const normalized = extractString(messageText)
   if (!normalized) {
     return null
@@ -104,6 +106,13 @@ function normalizeTaskErrorMessage(messageText: string | null): string | null {
   if (normalized.includes('adapter is not implemented for this platform')) {
     return '当前平台的桌面发布适配器未实现，任务已按失败处理。'
   }
+  if (
+    platform === 'dongchedi' &&
+    (/\bserver[\s_-]*exception\b/i.test(normalized) ||
+      /\bdongchedi_platform_exception\b/i.test(normalized))
+  ) {
+    return DONGCHEDI_PLATFORM_EXCEPTION_MESSAGE
+  }
   return normalized
 }
 
@@ -417,6 +426,7 @@ const publishTasks = computed<PublishTaskItem[]>(() =>
           extractString(taskError.message) ??
           extractString(taskError.detail) ??
           extractString(taskError.code),
+        platformId,
       ),
       complianceBlockedRecordId,
       complianceBlockedAt: task.compliance_blocked_at ?? null,