♻️ 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/prismjs/plugins/remove-initial-line-feed/prism-remove-initial-line-feed.js

@@ -1,21 +0,0 @@
-(function () {
-
-	if (typeof Prism === 'undefined' || typeof document === 'undefined') {
-		return;
-	}
-
-	Prism.hooks.add('before-sanity-check', function (env) {
-		if (env.code) {
-			var pre = env.element.parentNode;
-			var clsReg = /(?:^|\s)keep-initial-line-feed(?:\s|$)/;
-			if (
-				pre && pre.nodeName.toLowerCase() === 'pre' &&
-				// Apply only if nor the <pre> or the <code> have the class
-				(!clsReg.test(pre.className) && !clsReg.test(env.element.className))
-			) {
-				env.code = env.code.replace(/^(?:\r?\n|\r)/, '');
-			}
-		}
-	});
-
-}());

dealplustech-astro/node_modules/prismjs/plugins/remove-initial-line-feed/prism-remove-initial-line-feed.min.js

@@ -1 +0,0 @@
-"undefined"!=typeof Prism&&"undefined"!=typeof document&&Prism.hooks.add("before-sanity-check",(function(e){if(e.code){var n=e.element.parentNode,o=/(?:^|\s)keep-initial-line-feed(?:\s|$)/;!n||"pre"!==n.nodeName.toLowerCase()||o.test(n.className)||o.test(e.element.className)||(e.code=e.code.replace(/^(?:\r?\n|\r)/,""))}}));