Total dist/ui gzipped grew from ~1.5MB to ~1.6MB after the CodeEditor
switch from react-simple-code-editor + prism-react-renderer to
CodeMirror 6. The verify-bundle script preamble notes the cap is a
sanity check for accidental large dependencies, not a hard
performance target; this is an intentional editor upgrade to restore
native selection/copy in the codex config.toml viewer.