♻️ 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
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✅ 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/pipeline.d.ts

@@ -1,33 +0,0 @@
-import type { HeadElements, TryRewriteResult } from '../core/base-pipeline.js';
-import type { Logger } from '../core/logger/core.js';
-import type { ModuleLoader } from '../core/module-loader/index.js';
-import { Pipeline } from '../core/render/index.js';
-import type { AstroSettings, ComponentInstance, RoutesList } from '../types/astro.js';
-import type { RewritePayload } from '../types/public/common.js';
-import type { RouteData, SSRLoadedRenderer, SSRManifest } from '../types/public/internal.js';
-export declare class DevPipeline extends Pipeline {
-    readonly loader: ModuleLoader;
-    readonly logger: Logger;
-    readonly manifest: SSRManifest;
-    readonly settings: AstroSettings;
-    readonly getDebugInfo: () => Promise<string>;
-    readonly config: import("../index.js").AstroConfig;
-    readonly defaultRoutes: {
-        instance: ComponentInstance;
-        matchesComponent(filePath: URL): boolean;
-        route: string;
-        component: string;
-    }[];
-    renderers: SSRLoadedRenderer[];
-    routesList: RoutesList | undefined;
-    componentInterner: WeakMap<RouteData, ComponentInstance>;
-    private constructor();
-    static create(manifestData: RoutesList, { loader, logger, manifest, settings, getDebugInfo, }: Pick<DevPipeline, 'loader' | 'logger' | 'manifest' | 'settings' | 'getDebugInfo'>): DevPipeline;
-    headElements(routeData: RouteData): Promise<HeadElements>;
-    componentMetadata(routeData: RouteData): Promise<Map<string, import("../types/public/internal.js").SSRComponentMetadata>>;
-    preload(routeData: RouteData, filePath: URL): Promise<ComponentInstance>;
-    clearRouteCache(): void;
-    getComponentByRoute(routeData: RouteData): Promise<ComponentInstance>;
-    tryRewrite(payload: RewritePayload, request: Request): Promise<TryRewriteResult>;
-    setManifestData(manifestData: RoutesList): void;
-}