♻️ 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/is-inside-container/readme.md

@@ -1,36 +0,0 @@
-# is-inside-container
-
-> Check if the process is running inside a container
-
-## Install
-
-```sh
-npm install is-inside-container
-```
-
-## Usage
-
-```js
-import isInsideContainer from 'is-inside-container';
-
-if (isInsideContainer()) {
-	console.log('Running inside a container');
-}
-```
-
-## CLI
-
-```sh
-is-inside-container
-```
-
-Exits with code 0 if inside a container and 2 if not.
-
-## Supported containers
-
-- Docker
-- Podman
-
-## Related
-
-- [is-docker](https://github.com/sindresorhus/is-docker) - Check if the process is running inside a Docker container