♻️ 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
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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/mdast-util-to-hast/lib/handlers/table.js

@@ -1,61 +0,0 @@
-/**
- * @import {Table} from 'mdast'
- * @import {Element} from 'hast'
- * @import {State} from '../state.js'
- */
-
-import {pointEnd, pointStart} from 'unist-util-position'
-
-/**
- * Turn an mdast `table` node into hast.
- *
- * @param {State} state
- *   Info passed around.
- * @param {Table} node
- *   mdast node.
- * @returns {Element}
- *   hast node.
- */
-export function table(state, node) {
-  const rows = state.all(node)
-  const firstRow = rows.shift()
-  /** @type {Array<Element>} */
-  const tableContent = []
-
-  if (firstRow) {
-    /** @type {Element} */
-    const head = {
-      type: 'element',
-      tagName: 'thead',
-      properties: {},
-      children: state.wrap([firstRow], true)
-    }
-    state.patch(node.children[0], head)
-    tableContent.push(head)
-  }
-
-  if (rows.length > 0) {
-    /** @type {Element} */
-    const body = {
-      type: 'element',
-      tagName: 'tbody',
-      properties: {},
-      children: state.wrap(rows, true)
-    }
-
-    const start = pointStart(node.children[1])
-    const end = pointEnd(node.children[node.children.length - 1])
-    if (start && end) body.position = {start, end}
-    tableContent.push(body)
-  }
-
-  /** @type {Element} */
-  const result = {
-    type: 'element',
-    tagName: 'table',
-    properties: {},
-    children: state.wrap(tableContent, true)
-  }
-  state.patch(node, result)
-  return state.applyData(node, result)
-}