Extract charset.ControlCharPicture() shared between highlight and
charset escape paths. Add controlCharHTML helper to deduplicate HTML
template. Style control char badges with body color on gray background
matching the original styling.
Co-Authored-By: Claude (Opus 4.6) <noreply@anthropic.com>
Add position: relative to .broken-code-point[data-escaped] to establish
a containing block for the absolutely positioned .char child. Anchor
the child with left: 0. Replace AI-referencing comment with description
of actual purpose.
Co-Authored-By: Claude (Opus 4.6) <noreply@anthropic.com>
Render ASCII control characters (0x00-0x1F, 0x7F) as Unicode Control
Pictures (U+2400-U+2421) instead of text abbreviations like [DEL] or
[U+001E]. This applies to both the file view and diff view paths.
Also style control char badges in red without background, matching
the style of other escaped code points.
Co-Authored-By: Claude (Opus 4.6) <noreply@anthropic.com>
