♻️ 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

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✅ Ready for Easypanel deployment (no root dir needed)

Migration path:
- Old structure: /dealplustech-astro/
- New structure: / (root)

dealplustech-astro/node_modules/widest-line/readme.md

@@ -1,26 +0,0 @@
-# widest-line
-
-> Get the visual width of the widest line in a string - the number of columns required to display it
-
-Some Unicode characters are [fullwidth](https://en.wikipedia.org/wiki/Halfwidth_and_fullwidth_forms) and use double the normal width. [ANSI escape codes](http://en.wikipedia.org/wiki/ANSI_escape_code) are stripped and doesn't affect the width.
-
-Useful to be able to know the maximum width a string will take up in the terminal.
-
-## Install
-
-```sh
-npm install widest-line
-```
-
-## Usage
-
-```js
-import widestLine from 'widest-line';
-
-widestLine('古\n\u001B[1m@\u001B[22m');
-//=> 2
-```
-
-## Related
-
-- [string-width](https://github.com/sindresorhus/string-width) - Get the visual width of a string