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/main/adapters/dongchedi.ts

@@ -2,6 +2,7 @@ import { createHash, createHmac } from 'node:crypto'
 
 import type { JsonValue } from '@geo/shared-types'
 
+import { DONGCHEDI_PLATFORM_EXCEPTION_MESSAGE } from '../../shared/publisher-errors'
 import type { PublishAdapter, PublishAdapterContext } from './base'
 import {
   ensureViewLoaded,
@@ -127,6 +128,10 @@ function isDongchediChallengeMessage(message: string): boolean {
   )
 }
 
+function isDongchediPlatformExceptionMessage(message: string): boolean {
+  return /\bserver[\s_-]*exception\b/i.test(message)
+}
+
 function redactDiagnosticText(value: string, maxLength = 220): string {
   return value
     .replace(
@@ -1009,6 +1014,26 @@ function failureResult(
     }
   }
 
+  if (
+    (error instanceof DongchediAdapterError && error.code === 'dongchedi_platform_exception') ||
+    isDongchediPlatformExceptionMessage(message)
+  ) {
+    return {
+      status: 'failed',
+      summary: DONGCHEDI_PLATFORM_EXCEPTION_MESSAGE,
+      error: {
+        code: 'dongchedi_platform_exception',
+        message: DONGCHEDI_PLATFORM_EXCEPTION_MESSAGE,
+        detail:
+          error instanceof DongchediAdapterError && error.detail
+            ? error.detail
+            : {
+                platform_message: message,
+              },
+      },
+    }
+  }
+
   return {
     status: 'failed',
     summary: '懂车帝发布失败。',
@@ -1080,6 +1105,9 @@ export const dongchediAdapter: PublishAdapter = {
           taskId: context.taskId,
           ...detail,
         })
+        if (isDongchediPlatformExceptionMessage(message)) {
+          throw new DongchediAdapterError('dongchedi_platform_exception', message, detail)
+        }
         throw new DongchediAdapterError(
           'dongchedi_publish_failed',
           message || 'dongchedi_draft_failed',
@@ -1115,6 +1143,9 @@ export const dongchediAdapter: PublishAdapter = {
           taskId: context.taskId,
           ...detail,
         })
+        if (isDongchediPlatformExceptionMessage(message)) {
+          throw new DongchediAdapterError('dongchedi_platform_exception', message, detail)
+        }
         throw new DongchediAdapterError(
           'dongchedi_publish_failed',
           message || 'dongchedi_publish_failed',