♻️ Restructure: Move Astro to repository root

BREAKING CHANGE: Astro project is now at repository root
- Removed dealplustech-astro subdirectory
- Moved all Astro files to root
- Updated PostCSS config to .cjs
- Removed old Next.js files

✅ 11 pages built successfully
✅ Cookie consent banner included
✅ Privacy/Terms links in footer
✅ Ready for Easypanel deployment (no root dir needed)

Migration path:
- Old structure: /dealplustech-astro/
- New structure: / (root)

dealplustech-astro/node_modules/astro/dist/vite-plugin-astro-server/route.d.ts

@@ -1,25 +0,0 @@
-import type http from 'node:http';
-import type { ComponentInstance, RoutesList } from '../types/astro.js';
-import type { RouteData } from '../types/public/internal.js';
-import type { DevPipeline } from './pipeline.js';
-type AsyncReturnType<T extends (...args: any) => Promise<any>> = T extends (...args: any) => Promise<infer R> ? R : any;
-interface MatchedRoute {
-    route: RouteData;
-    filePath: URL;
-    resolvedPathname: string;
-    preloadedComponent: ComponentInstance;
-    mod: ComponentInstance;
-}
-export declare function matchRoute(pathname: string, routesList: RoutesList, pipeline: DevPipeline): Promise<MatchedRoute | undefined>;
-interface HandleRoute {
-    matchedRoute: AsyncReturnType<typeof matchRoute>;
-    url: URL;
-    pathname: string;
-    body: BodyInit | undefined;
-    routesList: RoutesList;
-    incomingRequest: http.IncomingMessage;
-    incomingResponse: http.ServerResponse;
-    pipeline: DevPipeline;
-}
-export declare function handleRoute({ matchedRoute, url, pathname, body, pipeline, routesList, incomingRequest, incomingResponse, }: HandleRoute): Promise<void>;
-export {};