♻️ 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/extend/package.json

@@ -1,42 +0,0 @@
-{
-	"name": "extend",
-	"author": "Stefan Thomas <justmoon@members.fsf.org> (http://www.justmoon.net)",
-	"version": "3.0.2",
-	"description": "Port of jQuery.extend for node.js and the browser",
-	"main": "index",
-	"scripts": {
-		"pretest": "npm run lint",
-		"test": "npm run tests-only",
-		"posttest": "npm run coverage-quiet",
-		"tests-only": "node test",
-		"coverage": "covert test/index.js",
-		"coverage-quiet": "covert test/index.js --quiet",
-		"lint": "npm run jscs && npm run eslint",
-		"jscs": "jscs *.js */*.js",
-		"eslint": "eslint *.js */*.js"
-	},
-	"contributors": [
-		{
-			"name": "Jordan Harband",
-			"url": "https://github.com/ljharb"
-		}
-	],
-	"keywords": [
-		"extend",
-		"clone",
-		"merge"
-	],
-	"repository": {
-		"type": "git",
-		"url": "https://github.com/justmoon/node-extend.git"
-	},
-	"dependencies": {},
-	"devDependencies": {
-		"@ljharb/eslint-config": "^12.2.1",
-		"covert": "^1.1.0",
-		"eslint": "^4.19.1",
-		"jscs": "^3.0.7",
-		"tape": "^4.9.1"
-	},
-	"license": "MIT"
-}