♻️ 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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✅ 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/utils.js

@@ -1,47 +0,0 @@
-const splitAttrsTokenizer = /([${}@\w:\-]*)\s*=\s*?(['"]?)(.*?)\2\s+/g;
-function replaceAttribute(s, node, key, newValue) {
-  splitAttrsTokenizer.lastIndex = 0;
-  const text = s.original.slice(node.position?.start.offset ?? 0, node.position?.end.offset ?? 0).toString();
-  const offset = text.indexOf(key);
-  if (offset === -1) return;
-  const start = node.position.start.offset + offset;
-  const tokens = text.slice(offset).split(splitAttrsTokenizer);
-  const token = tokens[0].replace(/([^>])>[\s\S]*$/gm, "$1");
-  if (token.trim() === key) {
-    const end = start + key.length;
-    return s.overwrite(start, end, newValue, { contentOnly: true });
-  } else {
-    const length = token.length;
-    const end = start + length;
-    return s.overwrite(start, end, newValue, { contentOnly: true });
-  }
-}
-const NEEDS_ESCAPE_RE = /[`\\]|\$\{/g;
-function needsEscape(value) {
-  NEEDS_ESCAPE_RE.lastIndex = 0;
-  return typeof value === "string" && NEEDS_ESCAPE_RE.test(value);
-}
-function escapeTemplateLiteralCharacters(value) {
-  NEEDS_ESCAPE_RE.lastIndex = 0;
-  let char;
-  let startIndex = 0;
-  let segment = "";
-  let text = "";
-  while ([char] = NEEDS_ESCAPE_RE.exec(value) ?? []) {
-    if (!char) {
-      text += value.slice(startIndex);
-      break;
-    }
-    const endIndex = NEEDS_ESCAPE_RE.lastIndex - char.length;
-    const prefix = segment === "\\" ? "" : "\\";
-    segment = prefix + char;
-    text += value.slice(startIndex, endIndex) + segment;
-    startIndex = NEEDS_ESCAPE_RE.lastIndex;
-  }
-  return text;
-}
-export {
-  escapeTemplateLiteralCharacters,
-  needsEscape,
-  replaceAttribute
-};