♻️ 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/zod-to-json-schema/dist/esm/parsers/never.js

@@ -1,11 +0,0 @@
-import { parseAnyDef } from "./any.js";
-export function parseNeverDef(refs) {
-    return refs.target === "openAi"
-        ? undefined
-        : {
-            not: parseAnyDef({
-                ...refs,
-                currentPath: [...refs.currentPath, "not"],
-            }),
-        };
-}