♻️ 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/lib/initialize/flow.js

@@ -1,58 +0,0 @@
-/**
- * @import {
- *   InitialConstruct,
- *   Initializer,
- *   State,
- *   TokenizeContext
- * } from 'micromark-util-types'
- */
-
-import { blankLine, content } from 'micromark-core-commonmark';
-import { factorySpace } from 'micromark-factory-space';
-import { markdownLineEnding } from 'micromark-util-character';
-/** @type {InitialConstruct} */
-export const flow = {
-  tokenize: initializeFlow
-};
-
-/**
- * @this {TokenizeContext}
- *   Self.
- * @type {Initializer}
- *   Initializer.
- */
-function initializeFlow(effects) {
-  const self = this;
-  const initial = effects.attempt(
-  // Try to parse a blank line.
-  blankLine, atBlankEnding,
-  // Try to parse initial flow (essentially, only code).
-  effects.attempt(this.parser.constructs.flowInitial, afterConstruct, factorySpace(effects, effects.attempt(this.parser.constructs.flow, afterConstruct, effects.attempt(content, afterConstruct)), "linePrefix")));
-  return initial;
-
-  /** @type {State} */
-  function atBlankEnding(code) {
-    if (code === null) {
-      effects.consume(code);
-      return;
-    }
-    effects.enter("lineEndingBlank");
-    effects.consume(code);
-    effects.exit("lineEndingBlank");
-    self.currentConstruct = undefined;
-    return initial;
-  }
-
-  /** @type {State} */
-  function afterConstruct(code) {
-    if (code === null) {
-      effects.consume(code);
-      return;
-    }
-    effects.enter("lineEnding");
-    effects.consume(code);
-    effects.exit("lineEnding");
-    self.currentConstruct = undefined;
-    return initial;
-  }
-}