docs: unify brand voice and add Hyperbliss footer

docs: purge em dashes, delete slop, and apply brand tagline across all docs

refactor: rename silkcircuit-nvim to silkcircuit and rebrand as unified design system

feat: add Ghostty GTK chrome CSS for all five variants

chore: opt into Node.js 24 for all GitHub Actions

fix: exclude node_modules from markdownlint in make lint

🐛 fix: add blank lines before list items in cosmic README

fix: resolve all markdownlint errors

feat: add dmesg color schemes and Chrome Web Store assets

chore: gitignore Chrome cached theme .pak files

fix: disable MD060 table-column-style lint rule

fix: use butterfly and night city emojis in store descriptions

fix: plain text store descriptions, no markdown or fire emojis

fix: trim manifest descriptions to 132 char limit

feat: add Chrome Web Store descriptions for all 5 variants