Extract independent MIT Mortar kit and contribution workflow

package.json

@@ -0,0 +1,72 @@
+{
+  "name": "@tony-ui/mortar",
+  "version": "0.1.0",
+  "description": "Mortar: a shared design foundation, application and marketing UI for React and Tailwind.",
+  "type": "module",
+  "files": [
+    "dist",
+    "src",
+    "styles.css",
+    "README.md",
+    "LICENSE",
+    "catalog.json",
+    "baseline-policy.json",
+    "design-principles.json",
+    "DESIGN.md"
+  ],
+  "main": "./dist/index.js",
+  "types": "./dist/index.d.ts",
+  "exports": {
+    ".": {
+      "types": "./dist/index.d.ts",
+      "import": "./dist/index.js"
+    },
+    "./styles.css": "./styles.css"
+  },
+  "sideEffects": [
+    "**/*.css"
+  ],
+  "scripts": {
+    "build": "tsc -p tsconfig.json",
+    "dev": "vite --host 127.0.0.1",
+    "catalog": "node scripts/check.mjs --write-catalog",
+    "check": "npm run format:check && npm run build && node scripts/check.mjs && node --test tests/*.test.mjs && npm run build:playground",
+    "check:json": "node scripts/check.mjs --format json",
+    "test:browser": "playwright test",
+    "build:playground": "tsc --noEmit -p tsconfig.playground.json && vite build",
+    "format:check": "prettier --check .",
+    "release:prepare": "node scripts/release.mjs"
+  },
+  "peerDependencies": {
+    "react": "^19.0.0",
+    "react-dom": "^19.0.0",
+    "tailwindcss": "^4.0.0"
+  },
+  "dependencies": {
+    "@headlessui/react": "^2.2.0"
+  },
+  "devDependencies": {
+    "@types/react": "^19.0.0",
+    "@types/react-dom": "^19.0.0",
+    "typescript": "^5.9.3",
+    "vite": "^7.1.0",
+    "@vitejs/plugin-react": "^5.0.0",
+    "@tailwindcss/vite": "^4.0.0",
+    "tailwindcss": "^4.0.0",
+    "react": "^19.0.0",
+    "react-dom": "^19.0.0",
+    "prettier": "^3.9.9",
+    "@playwright/test": "^1.63.0",
+    "@axe-core/playwright": "^4.13.0"
+  },
+  "license": "MIT",
+  "publishConfig": {
+    "registry": "https://git.tony.codes/api/packages/tony/npm/",
+    "access": "public"
+  },
+  "repository": {
+    "type": "git",
+    "url": "https://git.tony.codes/tony/mortar.git"
+  },
+  "homepage": "https://ui.tony.codes/"
+}