Remove upstream-forks.md and upstream-hefengfan0615-evaluation.md (the
original maintainer's fork-tracking notes, irrelevant to this deployment)
and their references in the docs index and contributing guide.
Translate the GitHub bug/feature issue forms and PR template, the docs
index, and pow/README to English. Rename the reverse-engineering note file
to an ASCII name (deepseek-sse-behavior-2026-04-05.md); its body is
translated in a follow-up.
Replace the Chinese README/API/ARCHITECTURE/CONTRIBUTING/DEPLOY with their
English versions and remove the now-redundant .en.md files. Strip the
language switchers and rewrite all .en.md links to the canonical .md paths;
update the release artifact list accordingly.
omar