♻️ 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/hastscript/lib/create-automatic-runtime.js

@@ -1,52 +0,0 @@
-/**
- * @import {Element, Root} from 'hast'
- * @import {Child, Properties, PropertyValue, Result, Style, createH as CreateH} from './create-h.js'
- */
-
-/**
- * @typedef {Record<string, Child | PropertyValue | Style>} JSXProps
- */
-
-// Make VS code see references to above symbols.
-''
-
-/**
- * Create an automatic runtime.
- *
- * @param {ReturnType<CreateH>} f
- *   `h` function.
- * @returns
- *   Automatic JSX runtime.
- */
-export function createAutomaticRuntime(f) {
-  /**
-   * @overload
-   * @param {null} type
-   * @param {{children?: Child}} properties
-   * @param {string | null | undefined} [key]
-   * @returns {Root}
-   *
-   * @overload
-   * @param {string} type
-   * @param {JSXProps} properties
-   * @param {string | null | undefined} [key]
-   * @returns {Element}
-   *
-   * @param {string | null} type
-   *   Element name or `null` to get a root.
-   * @param {Properties & {children?: Child}} properties
-   *   Properties.
-   * @returns {Result}
-   *   Result.
-   */
-  function jsx(type, properties) {
-    const {children, ...properties_} = properties
-    const result =
-      // @ts-ignore: `children` is fine: TS has a recursion problem which
-      // sometimes generates broken types.
-      type === null ? f(null, children) : f(type, properties_, children)
-    return result
-  }
-
-  return {Fragment: null, jsxDEV: jsx, jsxs: jsx, jsx}
-}