- Add DESIGN-SYSTEM.md as single source of truth for all design decisions
- Update CLAUDE.md branding and design system sections to reference new system
- Archive UI-DESIGN-SYSTEM.md to docs/archive/design-docs/
- Update tech stack styling line and quick reference table
The new design system moves from glassmorphism/gradients to a flat,
high-contrast dark theme inspired by Sentry/PostHog. Light mode planned.
CSS implementation to follow in a separate branch.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
6ff793bf45