refactor: replace esbuild with rolldown

rolldown.config.ts

@@ -0,0 +1,12 @@
+import { defineConfig } from "rolldown/config";
+
+export default defineConfig({
+  input: "src/index.ts",
+  output: {
+    file: "dist/index.js",
+    format: "esm",
+    minify: true,
+  },
+  platform: "node",
+  treeshake: true,
+});