♻️ 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/runtime/server/escape.d.ts

@@ -1,21 +0,0 @@
-export declare const escapeHTML: (str: string) => string;
-export declare class HTMLBytes extends Uint8Array {
-}
-/**
- * A "blessed" extension of String that tells Astro that the string
- * has already been escaped. This helps prevent double-escaping of HTML.
- */
-export declare class HTMLString extends String {
-    get [Symbol.toStringTag](): string;
-}
-type BlessedType = string | HTMLBytes;
-/**
- * markHTMLString marks a string as raw or "already escaped" by returning
- * a `HTMLString` instance. This is meant for internal use, and should not
- * be returned through any public JS API.
- */
-export declare const markHTMLString: (value: any) => any;
-export declare function isHTMLString(value: any): value is HTMLString;
-export declare function isHTMLBytes(value: any): value is HTMLBytes;
-export declare function unescapeHTML(str: any): BlessedType | Promise<BlessedType | AsyncGenerator<BlessedType, void, unknown>> | AsyncGenerator<BlessedType, void, unknown>;
-export {};