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/desktop-client/src/shared/publisher-errors.test.ts

@@ -2,6 +2,7 @@ import { describe, expect, it } from 'vitest'
 
 import {
   BAIJIAHAO_CHALLENGE_REQUIRED_MESSAGE,
+  DONGCHEDI_PLATFORM_EXCEPTION_MESSAGE,
   PUBLISH_ACCOUNT_NOT_LOGGED_IN_MESSAGE,
   QIEHAO_REAL_NAME_AUTH_MESSAGE,
   WANGYIHAO_DRAFT_SAVE_PARAMETER_MESSAGE,
@@ -10,6 +11,7 @@ import {
   WEIXIN_GZH_PUBLIC_URL_MISSING_MESSAGE,
   isQiehaoRealNameAuthError,
   normalizeBaijiahaoPublishErrorMessage,
+  normalizeDongchediPublishErrorMessage,
   normalizePublisherErrorMessage,
   normalizePublisherLoginErrorMessage,
   normalizeQiehaoPublishErrorMessage,
@@ -99,6 +101,18 @@ describe('publisher error normalization', () => {
     )
   })
 
+  it('normalizes Dongchedi server exception failures to a broad platform prompt', () => {
+    expect(normalizePublisherErrorMessage('server exception', 'dongchedi')).toBe(
+      DONGCHEDI_PLATFORM_EXCEPTION_MESSAGE,
+    )
+    expect(normalizePublisherErrorMessage('dongchedi_publish_failed:server exception')).toBe(
+      DONGCHEDI_PLATFORM_EXCEPTION_MESSAGE,
+    )
+    expect(normalizeDongchediPublishErrorMessage('Error: dongchedi_platform_exception')).toBe(
+      DONGCHEDI_PLATFORM_EXCEPTION_MESSAGE,
+    )
+  })
+
   it('leaves unknown publisher errors unchanged', () => {
     expect(normalizePublisherErrorMessage('qiehao_publish_failed')).toBe('qiehao_publish_failed')
   })

apps/desktop-client/src/shared/publisher-errors.ts

@@ -12,6 +12,8 @@ export const WEIXIN_GZH_PUBLIC_URL_MISSING_MESSAGE =
   '微信公众号可能已触发管理员/运营者授权发布，桌面端未能获取到文章外链。请打开公众号后台完成授权发布，并在发表记录中确认文章链接。'
 export const BAIJIAHAO_CHALLENGE_REQUIRED_MESSAGE =
   '百家号检测到网络环境异常，需要人机验证。请打开百家号后台手动完成一次发稿或验证后再重试发布。'
+export 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。'
 
 const PUBLISH_PLATFORM_LABELS: Record<string, string> = {
   baijiahao: '百家号',
@@ -34,6 +36,10 @@ function normalizeErrorText(value: string | null | undefined): string | null {
   return trimmed ? trimmed : null
 }
 
+function isDongchediPlatform(platform?: string | null): boolean {
+  return platform?.trim().toLowerCase() === 'dongchedi'
+}
+
 export function isQiehaoRealNameAuthError(
   message: string | null | undefined,
   code?: number | string | null,
@@ -140,13 +146,39 @@ export function normalizeBaijiahaoPublishErrorMessage(
   return normalized
 }
 
-export function normalizePublisherErrorMessage(message: string | null | undefined): string | null {
+export function normalizeDongchediPublishErrorMessage(
+  message: string | null | undefined,
+  platform?: string | null,
+): string | null {
+  const normalized = normalizeErrorText(message)
+  if (!normalized) {
+    return null
+  }
+
+  const hasDongchediSignal =
+    isDongchediPlatform(platform) || /\bdongchedi_(?:draft|publish|platform)_/i.test(normalized)
+
+  if (
+    hasDongchediSignal &&
+    (/\bserver[\s_-]*exception\b/i.test(normalized) ||
+      /\bdongchedi_platform_exception\b/i.test(normalized))
+  ) {
+    return DONGCHEDI_PLATFORM_EXCEPTION_MESSAGE
+  }
+  return normalized
+}
+
+export function normalizePublisherErrorMessage(
+  message: string | null | undefined,
+  platform?: string | null,
+): string | null {
   if (message === 'compliance_blocked') {
     return '内容合规检测已阻断本次发布，请修改文章后重新发布。'
   }
   const qiehaoMessage = normalizeQiehaoPublishErrorMessage(message)
   const wangyihaoMessage = normalizeWangyihaoPublishErrorMessage(qiehaoMessage)
   const baijiahaoMessage = normalizeBaijiahaoPublishErrorMessage(wangyihaoMessage)
-  const loginMessage = normalizePublisherLoginErrorMessage(baijiahaoMessage)
+  const dongchediMessage = normalizeDongchediPublishErrorMessage(baijiahaoMessage, platform)
+  const loginMessage = normalizePublisherLoginErrorMessage(dongchediMessage)
   return normalizeWeixinGzhPublishErrorMessage(loginMessage)
 }