chore: initial scaffold of KDC Design System

Initial repository scaffold:
- design.md (google-labs-code/design.md format) as canonical token + guidelines source
- brand assets, foundations, tokens (W3C-style JSON)
- 12 component primitives, each with labeled anatomy.svg and spec README
- light / dark / high-contrast themes, web/mobile/email/print/presentation templates
- docs (getting started, principles, a11y, voice & tone, contributing)
- runnable web example, token build script stub, CI placeholder

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

package.json

@@ -0,0 +1,12 @@
+{
+  "name": "@kdc/design-system",
+  "version": "0.1.0-alpha.0",
+  "description": "KDC Design System — tokens, components, and brand assets.",
+  "private": true,
+  "scripts": {
+    "build:tokens": "node scripts/build-tokens.js",
+    "lint": "echo \"TODO: configure linter\"",
+    "test": "echo \"TODO: configure tests\""
+  },
+  "license": "UNLICENSED"
+}