fix: Add nixpacks configuration for Astro deployment

dealplustech-astro/node_modules/@capsizecss/unpack/dist/fs.mjs

@@ -0,0 +1,10 @@
+import { t as _fromBuffer } from "./shared-KjM_oZR2.mjs";
+import { readFile } from "node:fs/promises";
+
+//#region src/fs.ts
+const fromFile = async (path, options) => {
+	return _fromBuffer(await readFile(path), "fromFile", "path", options);
+};
+
+//#endregion
+export { fromFile };