fix: Add nixpacks configuration for Astro deployment

dealplustech-astro/node_modules/astro/dist/prerender/utils.d.ts

@@ -0,0 +1,11 @@
+import type { AstroSettings } from '../types/astro.js';
+import type { AstroConfig } from '../types/public/config.js';
+export declare function getPrerenderDefault(config: AstroConfig): boolean;
+/**
+ * Returns the correct output directory of the SSR build based on the configuration
+ */
+export declare function getServerOutputDirectory(settings: AstroSettings): URL;
+/**
+ * Returns the correct output directory of the client build based on the configuration
+ */
+export declare function getClientOutputDirectory(settings: AstroSettings): URL;