NODE.DC Design System rules

This repository is the canonical home of reusable NODE.DC interface foundations and components.

Before adding UI to a NODE.DC application:

Read registry/registry.json and docs/COMPONENTS.md.
Reuse an existing package export if the required primitive or pattern already exists.
If a reusable capability is missing, add it here first and consume a released version from the application.
Do not copy component source into an application. Temporary adapters must stay thin and be documented in docs/ADOPTION.md.
Application-specific domain UI remains in the application, but its controls and surfaces must be composed from this system.

Canonical source limits:

Launcher/Hub, CMS and SEO are the reference product family for application shell, headers, windows and common controls.
From Engine, only the redesigned environment settings, shared glass controls and NDC agent inspector are approved reference sources.
Legacy Engine inspectors and legacy Engine plates are explicitly non-canonical.
Task Manager contributes only already-standardized shared behavior and components. Its legacy local menus are non-canonical.
BIM Viewer contributes validated non-React integration requirements.

Every component change must update its registry entry and the living catalog. Preserve keyboard behavior, portal layering and theme independence.