ui/tokens.css from the server's dev (tokens.lock.json; repin to the beta tag
at release). scripts/fetch-vendor.sh copies the server's vendored CodeMirror and
Lezer modules into ui/vendor/, each checked against the server's own pin first,
with the bare module names rewritten to sibling files (the page has no import
map); vendor.lock.json records both hashes, and the script with no argument
verifies the copy.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>