♻️ 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/base-64/package.json

@@ -1,43 +0,0 @@
-{
-	"name": "base-64",
-	"version": "1.0.0",
-	"description": "A robust base64 encoder/decoder that is fully compatible with `atob()` and `btoa()`, written in JavaScript.",
-	"homepage": "https://mths.be/base64",
-	"main": "base64.js",
-	"keywords": [
-		"codec",
-		"decoder",
-		"encoder",
-		"base64",
-		"atob",
-		"btoa"
-	],
-	"license": "MIT",
-	"author": {
-		"name": "Mathias Bynens",
-		"url": "https://mathiasbynens.be/"
-	},
-	"repository": {
-		"type": "git",
-		"url": "https://github.com/mathiasbynens/base64.git"
-	},
-	"bugs": "https://github.com/mathiasbynens/base64/issues",
-	"files": [
-		"LICENSE-MIT.txt",
-		"base64.js"
-	],
-	"scripts": {
-		"test": "mocha tests/tests.js",
-		"build": "grunt build"
-	},
-	"devDependencies": {
-		"coveralls": "^2.11.4",
-		"grunt": "^0.4.5",
-		"grunt-cli": "^1.3.2",
-		"grunt-shell": "^1.1.2",
-		"grunt-template": "^0.2.3",
-		"istanbul": "^0.4.0",
-		"mocha": "^6.2.0",
-		"regenerate": "^1.2.1"
-	}
-}