New doc covering the semantic colour palette: every badge token, its
hex values in both themes, its CSS class, and where it's used across
the app. Categorises tokens into "type-of-adjustment" (custom semantic
palette) vs "transactional state" (Bootstrap defaults) and explains
why the two must not share colours.
Intended to be the single source of truth for UI colour decisions.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>