♻️ 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/kleur/package.json

@@ -1,35 +0,0 @@
-{
-  "name": "kleur",
-  "version": "3.0.3",
-  "repository": "lukeed/kleur",
-  "description": "The fastest Node.js library for formatting terminal text with ANSI colors~!",
-  "license": "MIT",
-  "files": [
-    "*.js",
-    "*.d.ts"
-  ],
-  "author": {
-    "name": "Luke Edwards",
-    "email": "luke.edwards05@gmail.com",
-    "url": "lukeed.com"
-  },
-  "scripts": {
-    "test": "tape test/*.js | tap-spec"
-  },
-  "engines": {
-    "node": ">=6"
-  },
-  "keywords": [
-    "ansi",
-    "cli",
-    "color",
-    "colors",
-    "console",
-    "terminal"
-  ],
-  "types": "kleur.d.ts",
-  "devDependencies": {
-    "tap-spec": "^5.0.0",
-    "tape": "^4.9.1"
-  }
-}