Design system wizard (5 steps)
/settings/brand/wizard walks you through a single setup: pick a vibe (6 presets: Modern Pro, Playful Tech, Editorial, Bold Startup, Minimal Zen, Custom), a primary color (with live WCAG contrast check), a typography combo (8 curated pairings with Google Fonts), a radius (sharp/rounded/pill) and a density (compact/comfortable/spacious). Live side-by-side preview using actual compiled CSS (no AI mockup). Saves to workspace_theme.tokens + workspace_theme.layout and applies immediately to your public site and member app.