feat: add documentation website

Author: chenjiahan

package.json

@@ -8,6 +8,7 @@
     "build": "pnpm --filter './packages/**' build",
     "check:format": "oxfmt . --check",
     "check:spell": "pnpm dlx cspell",
+    "doc": "pnpm --dir website dev",
     "format": "oxfmt .",
     "lint": "rs lint --type-check",
     "prepare": "husky",