♻️ 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

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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/micromark-core-commonmark/lib/label-start-link.js

@@ -1,55 +0,0 @@
-/**
- * @import {
- *   Construct,
- *   State,
- *   TokenizeContext,
- *   Tokenizer
- * } from 'micromark-util-types'
- */
-
-import { labelEnd } from './label-end.js';
-
-/** @type {Construct} */
-export const labelStartLink = {
-  name: 'labelStartLink',
-  resolveAll: labelEnd.resolveAll,
-  tokenize: tokenizeLabelStartLink
-};
-
-/**
- * @this {TokenizeContext}
- *   Context.
- * @type {Tokenizer}
- */
-function tokenizeLabelStartLink(effects, ok, nok) {
-  const self = this;
-  return start;
-
-  /**
-   * Start of label (link) start.
-   *
-   * ```markdown
-   * > | a [b] c
-   *       ^
-   * ```
-   *
-   * @type {State}
-   */
-  function start(code) {
-    effects.enter("labelLink");
-    effects.enter("labelMarker");
-    effects.consume(code);
-    effects.exit("labelMarker");
-    effects.exit("labelLink");
-    return after;
-  }
-
-  /** @type {State} */
-  function after(code) {
-    // To do: this isn’t needed in `micromark-extension-gfm-footnote`,
-    // remove.
-    // Hidden footnotes hook.
-    /* c8 ignore next 3 */
-    return code === 94 && '_hiddenFootnoteSupport' in self.parser.constructs ? nok(code) : ok(code);
-  }
-}