Add 404 error page and update book configuration - #3125

Draft

yl275 wants to merge 2 commits into

google:mainfrom

yl275:feat/404-support

Google CLA / cla/google succeeded Jun 10, 2026 in 7s

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Details

The following contributors were found for this pull request:

✅ 9f6bcfe Author: @yl275 <li*****75@outlook.com>
✅ 6c45184 Author: <goo******nth@gmail.com>

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