♻️ 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/@astrojs/prism/README.md

@@ -1,34 +0,0 @@
-# @astrojs/prism
-
-Supports Prism highlighting in Astro projects
-
-## Component
-
-This package exports a component to support highlighting inside an Astro file. Example:
-
-```astro
----
-import { Prism } from '@astrojs/prism';
----
-
-<Prism lang="js" code={`const foo = 'bar';`} />
-```
-
-## Internal
-
-This package exports a `runHighlighterWithAstro` function to highlight while making sure the Astro language is loaded beforehand
-
-```typescript
-import { runHighlighterWithAstro } from '@astrojs/prism';
-
-runHighlighterWithAstro(
-  `
-  ---
-    const helloAstro = 'Hello, Astro!';
-  ---
-
-  <div>{helloAstro}</div>
-`,
-  'astro',
-);
-```