♻️ 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/astro/dist/vite-plugin-html/transform/escape.js

@@ -1,30 +0,0 @@
-import { visit } from "unist-util-visit";
-import { escapeTemplateLiteralCharacters, needsEscape, replaceAttribute } from "./utils.js";
-const rehypeEscape = ({ s }) => {
-  return (tree) => {
-    visit(tree, (node) => {
-      if (node.type === "text" || node.type === "comment") {
-        if (needsEscape(node.value)) {
-          s.overwrite(
-            node.position.start.offset,
-            node.position.end.offset,
-            escapeTemplateLiteralCharacters(node.value)
-          );
-        }
-      } else if (node.type === "element") {
-        if (!node.properties) return;
-        for (let [key, value] of Object.entries(node.properties)) {
-          key = key.replace(/([A-Z])/g, "-$1").toLowerCase();
-          const newKey = needsEscape(key) ? escapeTemplateLiteralCharacters(key) : key;
-          const newValue = needsEscape(value) ? escapeTemplateLiteralCharacters(value) : value;
-          if (newKey === key && newValue === value) continue;
-          replaceAttribute(s, node, key, value === "" ? newKey : `${newKey}="${newValue}"`);
-        }
-      }
-    });
-  };
-};
-var escape_default = rehypeEscape;
-export {
-  escape_default as default
-};