♻️ 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/runtime/server/render/script.js

@@ -1,17 +0,0 @@
-import { createRenderInstruction } from "./instruction.js";
-async function renderScript(result, id) {
-  const inlined = result.inlinedScripts.get(id);
-  let content = "";
-  if (inlined != null) {
-    if (inlined) {
-      content = `<script type="module">${inlined}</script>`;
-    }
-  } else {
-    const resolved = await result.resolve(id);
-    content = `<script type="module" src="${result.userAssetsBase ? (result.base === "/" ? "" : result.base) + result.userAssetsBase : ""}${resolved}"></script>`;
-  }
-  return createRenderInstruction({ type: "script", id, content });
-}
-export {
-  renderScript
-};