chore: scaffold phase 0 workspace

packages/ui/package.json

@@ -0,0 +1,31 @@
+{
+  "name": "@ai-ui/ui",
+  "version": "0.0.0",
+  "private": true,
+  "type": "module",
+  "exports": {
+    ".": "./src/index.ts"
+  },
+  "files": [
+    "dist",
+    "src"
+  ],
+  "scripts": {
+    "build": "tsup src/index.ts --clean --dts --format esm,cjs",
+    "typecheck": "tsc --noEmit -p tsconfig.json"
+  },
+  "dependencies": {
+    "@ai-ui/tokens": "workspace:*",
+    "class-variance-authority": "^0.7.1",
+    "clsx": "^2.1.1",
+    "tailwind-merge": "^3.5.0"
+  },
+  "devDependencies": {
+    "react": "^18.3.1",
+    "react-dom": "^18.3.1"
+  },
+  "peerDependencies": {
+    "react": "^18.3.1 || ^19.0.0",
+    "react-dom": "^18.3.1 || ^19.0.0"
+  }
+}

packages/ui/src/index.ts

@@ -0,0 +1,4 @@
+export { cn } from "./lib/cn";
+export { cva, cx, type VariantProps } from "./lib/cva";
+export { motionDurations, motionEasings } from "./lib/motion";
+

packages/ui/src/lib/cn.ts

@@ -0,0 +1,7 @@
+import { clsx, type ClassValue } from "clsx";
+import { twMerge } from "tailwind-merge";
+
+export function cn(...inputs: ClassValue[]) {
+  return twMerge(clsx(inputs));
+}
+

packages/ui/src/lib/cva.ts

@@ -0,0 +1,2 @@
+export { cva, cx, type VariantProps } from "class-variance-authority";
+

packages/ui/src/lib/motion.ts

@@ -0,0 +1,11 @@
+export const motionDurations = {
+  fast: "var(--dur-fast)",
+  base: "var(--dur-base)",
+  slow: "var(--dur-slow)"
+} as const;
+
+export const motionEasings = {
+  standard: "var(--ease-standard)",
+  emphasized: "var(--ease-emphasized)"
+} as const;
+

packages/ui/tsconfig.json

@@ -0,0 +1,8 @@
+{
+  "extends": "../../tsconfig.base.json",
+  "compilerOptions": {
+    "types": ["node"]
+  },
+  "include": ["src/**/*"]
+}
+