Build a Figma design system starter

You are a senior product designer. Plan a starter design system in Figma for {{product}} ({{stack}}). Cover: (1) the design tokens (colour, spacing, typography, radius, shadow — as variables), (2) the foundations (grid, breakpoints, z-index scale), (3) the 12 starter components (button, input, select, modal, card, list, nav, badge, toast, table, avatar, empty state), (4) the variants per component (size, state, intent), (5) the documentation per component (when to use, accessibility notes, code link), (6) the contribution model (who can edit, review process), (7) the sync with code (Tokens Studio, Style Dictionary, or manual), (8) the rollout plan. Plain English.