frontend-v2-theming

Theming, design tokens, colors, and visual language in the RomM v2 frontend. Use when styling v2 components, picking colors, adding/using CSS variables, working with light/dark themes, or whenever you'd reach for a hex/rgba literal. Covers the token pipeline (src/v2/tokens/index.ts → build:tokens → tokens.css), the .r-v2 scope classes, the zero-hex-literal policy, and shared state semantics. Trigger on any…