♻️ 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/astro/components/viewtransitions.css

@@ -1,66 +0,0 @@
-@keyframes astroFadeInOut {
-	from {
-		opacity: 1;
-	}
-	to {
-		opacity: 0;
-	}
-}
-
-@keyframes astroFadeIn {
-	from {
-		opacity: 0;
-		mix-blend-mode: plus-lighter;
-	}
-	to {
-		opacity: 1;
-		mix-blend-mode: plus-lighter;
-	}
-}
-
-@keyframes astroFadeOut {
-	from {
-		opacity: 1;
-		mix-blend-mode: plus-lighter;
-	}
-	to {
-		opacity: 0;
-		mix-blend-mode: plus-lighter;
-	}
-}
-
-@keyframes astroSlideFromRight {
-	from {
-		transform: translateX(100%);
-	}
-}
-
-@keyframes astroSlideFromLeft {
-	from {
-		transform: translateX(-100%);
-	}
-}
-
-@keyframes astroSlideToRight {
-	to {
-		transform: translateX(100%);
-	}
-}
-
-@keyframes astroSlideToLeft {
-	to {
-		transform: translateX(-100%);
-	}
-}
-
-@media (prefers-reduced-motion) {
-	::view-transition-group(*),
-	::view-transition-old(*),
-	::view-transition-new(*) {
-		animation: none !important;
-	}
-
-	[data-astro-transition-scope] {
-		animation: none !important;
-	}
-}