feat(www): introduce monorepo

This change brings Turborepo monorepo to independently handle the marketing website, the docs website and any other future use cases for mutli-platform support. They are using internal @katanemo package handlers for the design system and logic.

www/package.json

@@ -1,36 +0,0 @@
-{
-  "name": "website",
-  "version": "0.1.0",
-  "private": true,
-  "scripts": {
-    "dev": "next dev",
-    "build": "next build",
-    "start": "next start",
-    "lint": "biome check",
-    "format": "biome format --write",
-    "typecheck": "tsc --noEmit"
-  },
-  "dependencies": {
-    "@radix-ui/react-dialog": "^1.1.15",
-    "@radix-ui/react-slot": "^1.2.3",
-    "@vercel/analytics": "^1.5.0",
-    "class-variance-authority": "^0.7.1",
-    "clsx": "^2.1.1",
-    "framer-motion": "^12.23.24",
-    "lucide-react": "^0.548.0",
-    "next": "16.0.0",
-    "react": "19.2.0",
-    "react-dom": "19.2.0",
-    "tailwind-merge": "^3.3.1"
-  },
-  "devDependencies": {
-    "@biomejs/biome": "2.2.0",
-    "@tailwindcss/postcss": "^4",
-    "@types/node": "^20",
-    "@types/react": "^19",
-    "@types/react-dom": "^19",
-    "tailwindcss": "^4",
-    "tw-animate-css": "^1.4.0",
-    "typescript": "^5"
-  }
-}