♻️ 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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✅ Ready for Easypanel deployment (no root dir needed)

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

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

@@ -1,27 +0,0 @@
-import type { AstroComponentMetadata, SSRElement, SSRLoadedRenderer, SSRResult } from '../../types/public/internal.js';
-export interface HydrationMetadata {
-    directive: string;
-    value: string;
-    componentUrl: string;
-    componentExport: {
-        value: string;
-    };
-}
-type Props = Record<string | number | symbol, any>;
-interface ExtractedProps {
-    isPage: boolean;
-    hydration: HydrationMetadata | null;
-    props: Props;
-    propsWithoutTransitionAttributes: Props;
-}
-export declare function extractDirectives(inputProps: Props, clientDirectives: SSRResult['clientDirectives']): ExtractedProps;
-interface HydrateScriptOptions {
-    renderer: SSRLoadedRenderer;
-    result: SSRResult;
-    astroId: string;
-    props: Record<string | number, any>;
-    attrs: Record<string, string> | undefined;
-}
-/** For hydrated components, generate a <script type="module"> to load the component */
-export declare function generateHydrateScript(scriptOptions: HydrateScriptOptions, metadata: Required<AstroComponentMetadata>): Promise<SSRElement>;
-export {};