♻️ 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/thematic-break.js

@@ -1,102 +0,0 @@
-/**
- * @import {
- *   Code,
- *   Construct,
- *   State,
- *   TokenizeContext,
- *   Tokenizer
- * } from 'micromark-util-types'
- */
-
-import { factorySpace } from 'micromark-factory-space';
-import { markdownLineEnding, markdownSpace } from 'micromark-util-character';
-/** @type {Construct} */
-export const thematicBreak = {
-  name: 'thematicBreak',
-  tokenize: tokenizeThematicBreak
-};
-
-/**
- * @this {TokenizeContext}
- *   Context.
- * @type {Tokenizer}
- */
-function tokenizeThematicBreak(effects, ok, nok) {
-  let size = 0;
-  /** @type {NonNullable<Code>} */
-  let marker;
-  return start;
-
-  /**
-   * Start of thematic break.
-   *
-   * ```markdown
-   * > | ***
-   *     ^
-   * ```
-   *
-   * @type {State}
-   */
-  function start(code) {
-    effects.enter("thematicBreak");
-    // To do: parse indent like `markdown-rs`.
-    return before(code);
-  }
-
-  /**
-   * After optional whitespace, at marker.
-   *
-   * ```markdown
-   * > | ***
-   *     ^
-   * ```
-   *
-   * @type {State}
-   */
-  function before(code) {
-    marker = code;
-    return atBreak(code);
-  }
-
-  /**
-   * After something, before something else.
-   *
-   * ```markdown
-   * > | ***
-   *     ^
-   * ```
-   *
-   * @type {State}
-   */
-  function atBreak(code) {
-    if (code === marker) {
-      effects.enter("thematicBreakSequence");
-      return sequence(code);
-    }
-    if (size >= 3 && (code === null || markdownLineEnding(code))) {
-      effects.exit("thematicBreak");
-      return ok(code);
-    }
-    return nok(code);
-  }
-
-  /**
-   * In sequence.
-   *
-   * ```markdown
-   * > | ***
-   *     ^
-   * ```
-   *
-   * @type {State}
-   */
-  function sequence(code) {
-    if (code === marker) {
-      effects.consume(code);
-      size++;
-      return sequence;
-    }
-    effects.exit("thematicBreakSequence");
-    return markdownSpace(code) ? factorySpace(effects, atBreak, "whitespace")(code) : atBreak(code);
-  }
-}