chore: add basic "benchmark" pkg

pkgs/benchmark/eslint.config.js

@@ -0,0 +1,23 @@
+import js from "@eslint/js";
+import globals from "globals";
+import reactHooks from "eslint-plugin-react-hooks";
+import reactRefresh from "eslint-plugin-react-refresh";
+import tseslint from "typescript-eslint";
+import { globalIgnores } from "eslint/config";
+
+export default tseslint.config([
+	globalIgnores(["dist"]),
+	{
+		files: ["**/*.{ts,tsx}"],
+		extends: [
+			js.configs.recommended,
+			tseslint.configs.recommended,
+			reactHooks.configs["recommended-latest"],
+			reactRefresh.configs.vite,
+		],
+		languageOptions: {
+			ecmaVersion: 2020,
+			globals: globals.browser,
+		},
+	},
+]);