fix: Add nixpacks configuration for Astro deployment

dealplustech-astro/node_modules/astro/dist/runtime/server/index.d.ts

@@ -0,0 +1,14 @@
+export { createComponent } from './astro-component.js';
+export { createAstro } from './astro-global.js';
+export { renderEndpoint } from './endpoint.js';
+export { escapeHTML, HTMLBytes, HTMLString, isHTMLString, markHTMLString, unescapeHTML, } from './escape.js';
+export { renderJSX } from './jsx.js';
+export type { AstroComponentFactory, AstroComponentInstance, ComponentSlots, RenderInstruction, } from './render/index.js';
+export { addAttribute, createHeadAndContent, defineScriptVars, Fragment, maybeRenderHead, Renderer as Renderer, renderComponent, renderHead, renderHTMLElement, renderPage, renderScript, renderScriptElement, renderSlot, renderSlotToString, renderTemplate as render, renderTemplate, renderToString, renderUniqueStylesheet, voidElementNames, } from './render/index.js';
+export type { ServerIslandComponent } from './render/server-islands.js';
+export { createTransitionScope, renderTransition } from './transition.js';
+export declare function mergeSlots(...slotted: unknown[]): Record<string, () => any>;
+export declare function spreadAttributes(values?: Record<any, any>, _name?: string, { class: scopedClassName }?: {
+    class?: string;
+}): any;
+export declare function defineStyleVars(defs: Record<any, any> | Record<any, any>[]): any;