HoloDeck design-system reference

Source of truth: src/holodeck/dashboard/assets/01-tokens.css and 02-holodeck.css.
Components: src/holodeck/dashboard/components/.
Views: src/holodeck/dashboard/views/.
Guidance: docs/FRONTEND.md and docs/guides/dashboard.md.

Reuse existing tokens, components, and state patterns. Inspect rendered changes.
This file is a navigation reference, not a duplicate of the CSS values.