feat(publish): handle qiehao real-name auth via shared publisher errors

- Detect qiehao's real-name auth blocking response (code/message) in the
  desktop adapter, surface a Chinese-friendly summary, and propagate the
  detail through the failure result.
- Extract a shared publisher-errors module so the renderer can normalize
  these messages for the publish task table without duplicating regex.
- Pre-process article HTML for qiehao before upload via a new
  packages/publisher-platforms/src/qiehao.ts entry point.
- Update the manual self-test notes for jianshu and qiehao with the
  latest results.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

媒体发布手工自测.md

@@ -22,14 +22,14 @@
 
 头条号：toutiaohao.ts   
 知乎： zhihu.ts
-百家号：baijiao.ts (表格官方渲染成了图片，不可以的，我们需要把表格降级处理)
+百家号：baijiao.ts (表格官方渲染成了图片，表格降级处理)
 哔哩哔哩：平台表格就不支持；降级了
 掘金：图 表 ok 
 什么值得买： 图 表 ok
+企鹅号：图片 ok  表格支持，但是会撑出去，目前是降级处理，后续再细调
+简书：jianshu.ts (图片 ok，文字，表格 ok)
 
 
-企鹅号：媒体资质未通过，另外要测
-简书：jianshu.ts (图片未测，文字，表格 ok)
 
 网易：媒体资质没下来
 搜狐：没注册成功