♻️ 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/extend/README.md

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-[![Build Status][travis-svg]][travis-url]
-[![dependency status][deps-svg]][deps-url]
-[![dev dependency status][dev-deps-svg]][dev-deps-url]
-
-# extend() for Node.js <sup>[![Version Badge][npm-version-png]][npm-url]</sup>
-
-`node-extend` is a port of the classic extend() method from jQuery. It behaves as you expect. It is simple, tried and true.
-
-Notes:
-
-* Since Node.js >= 4,
-  [`Object.assign`](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/assign)
-  now offers the same functionality natively (but without the "deep copy" option).
-  See [ECMAScript 2015 (ES6) in Node.js](https://nodejs.org/en/docs/es6).
-* Some native implementations of `Object.assign` in both Node.js and many
-  browsers (since NPM modules are for the browser too) may not be fully
-  spec-compliant.
-  Check [`object.assign`](https://www.npmjs.com/package/object.assign) module for
-  a compliant candidate.
-
-## Installation
-
-This package is available on [npm][npm-url] as: `extend`
-
-``` sh
-npm install extend
-```
-
-## Usage
-
-**Syntax:** extend **(** [`deep`], `target`, `object1`, [`objectN`] **)**
-
-*Extend one object with one or more others, returning the modified object.*
-
-**Example:**
-
-``` js
-var extend = require('extend');
-extend(targetObject, object1, object2);
-```
-
-Keep in mind that the target object will be modified, and will be returned from extend().
-
-If a boolean true is specified as the first argument, extend performs a deep copy, recursively copying any objects it finds. Otherwise, the copy will share structure with the original object(s).
-Undefined properties are not copied. However, properties inherited from the object's prototype will be copied over.
-Warning: passing `false` as the first argument is not supported.
-
-### Arguments
-
-* `deep` *Boolean* (optional)
-If set, the merge becomes recursive (i.e. deep copy).
-* `target`	*Object*
-The object to extend.
-* `object1`	*Object*
-The object that will be merged into the first.
-* `objectN` *Object* (Optional)
-More objects to merge into the first.
-
-## License
-
-`node-extend` is licensed under the [MIT License][mit-license-url].
-
-## Acknowledgements
-
-All credit to the jQuery authors for perfecting this amazing utility.
-
-Ported to Node.js by [Stefan Thomas][github-justmoon] with contributions by [Jonathan Buchanan][github-insin] and [Jordan Harband][github-ljharb].
-
-[travis-svg]: https://travis-ci.org/justmoon/node-extend.svg
-[travis-url]: https://travis-ci.org/justmoon/node-extend
-[npm-url]: https://npmjs.org/package/extend
-[mit-license-url]: http://opensource.org/licenses/MIT
-[github-justmoon]: https://github.com/justmoon
-[github-insin]: https://github.com/insin
-[github-ljharb]: https://github.com/ljharb
-[npm-version-png]: http://versionbadg.es/justmoon/node-extend.svg
-[deps-svg]: https://david-dm.org/justmoon/node-extend.svg
-[deps-url]: https://david-dm.org/justmoon/node-extend
-[dev-deps-svg]: https://david-dm.org/justmoon/node-extend/dev-status.svg
-[dev-deps-url]: https://david-dm.org/justmoon/node-extend#info=devDependencies
-