Ports dsh-file-trace v0.2.1 highlight coverage into the shared diff engine: JS/TS module suffixes share the js/ts keyword lists; CSS gains its own config (slash-star block comments threaded across lines, hyphenated property words via a wider word charset, 120+ properties/selectors/at-rules); markup files gain markup comments plus common tags/attributes; GraphQL and JSONC/JSON5 map in. Previously css/scss/less had a wrong hash-comment config and html was plain CONFIG_LANG, so both effectively rendered uncolored.
