♻️ 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/remark-gfm/lib/index.d.ts

@@ -1,12 +0,0 @@
-/**
- * Add support GFM (autolink literals, footnotes, strikethrough, tables,
- * tasklists).
- *
- * @param {Options | null | undefined} [options]
- *   Configuration (optional).
- * @returns {undefined}
- *   Nothing.
- */
-export default function remarkGfm(options?: Options | null | undefined): undefined;
-import type { Options } from 'remark-gfm';
-//# sourceMappingURL=index.d.ts.map

dealplustech-astro/node_modules/remark-gfm/lib/index.d.ts.map

@@ -1 +0,0 @@
-{"version":3,"file":"index.d.ts","sourceRoot":"","sources":["index.js"],"names":[],"mappings":"AAcA;;;;;;;;GAQG;AACH,4CALW,OAAO,GAAG,IAAI,GAAG,SAAS,GAExB,SAAS,CAoBrB;6BAtCyB,YAAY"}

dealplustech-astro/node_modules/remark-gfm/lib/index.js

@@ -1,41 +0,0 @@
-/**
- * @import {Root} from 'mdast'
- * @import {Options} from 'remark-gfm'
- * @import {} from 'remark-parse'
- * @import {} from 'remark-stringify'
- * @import {Processor} from 'unified'
- */
-
-import {gfmFromMarkdown, gfmToMarkdown} from 'mdast-util-gfm'
-import {gfm} from 'micromark-extension-gfm'
-
-/** @type {Options} */
-const emptyOptions = {}
-
-/**
- * Add support GFM (autolink literals, footnotes, strikethrough, tables,
- * tasklists).
- *
- * @param {Options | null | undefined} [options]
- *   Configuration (optional).
- * @returns {undefined}
- *   Nothing.
- */
-export default function remarkGfm(options) {
-  // @ts-expect-error: TS is wrong about `this`.
-  // eslint-disable-next-line unicorn/no-this-assignment
-  const self = /** @type {Processor<Root>} */ (this)
-  const settings = options || emptyOptions
-  const data = self.data()
-
-  const micromarkExtensions =
-    data.micromarkExtensions || (data.micromarkExtensions = [])
-  const fromMarkdownExtensions =
-    data.fromMarkdownExtensions || (data.fromMarkdownExtensions = [])
-  const toMarkdownExtensions =
-    data.toMarkdownExtensions || (data.toMarkdownExtensions = [])
-
-  micromarkExtensions.push(gfm(settings))
-  fromMarkdownExtensions.push(gfmFromMarkdown())
-  toMarkdownExtensions.push(gfmToMarkdown(settings))
-}