♻️ 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/dequal/dist/index.js

@@ -1,86 +0,0 @@
-var has = Object.prototype.hasOwnProperty;
-
-function find(iter, tar, key) {
-	for (key of iter.keys()) {
-		if (dequal(key, tar)) return key;
-	}
-}
-
-function dequal(foo, bar) {
-	var ctor, len, tmp;
-	if (foo === bar) return true;
-
-	if (foo && bar && (ctor=foo.constructor) === bar.constructor) {
-		if (ctor === Date) return foo.getTime() === bar.getTime();
-		if (ctor === RegExp) return foo.toString() === bar.toString();
-
-		if (ctor === Array) {
-			if ((len=foo.length) === bar.length) {
-				while (len-- && dequal(foo[len], bar[len]));
-			}
-			return len === -1;
-		}
-
-		if (ctor === Set) {
-			if (foo.size !== bar.size) {
-				return false;
-			}
-			for (len of foo) {
-				tmp = len;
-				if (tmp && typeof tmp === 'object') {
-					tmp = find(bar, tmp);
-					if (!tmp) return false;
-				}
-				if (!bar.has(tmp)) return false;
-			}
-			return true;
-		}
-
-		if (ctor === Map) {
-			if (foo.size !== bar.size) {
-				return false;
-			}
-			for (len of foo) {
-				tmp = len[0];
-				if (tmp && typeof tmp === 'object') {
-					tmp = find(bar, tmp);
-					if (!tmp) return false;
-				}
-				if (!dequal(len[1], bar.get(tmp))) {
-					return false;
-				}
-			}
-			return true;
-		}
-
-		if (ctor === ArrayBuffer) {
-			foo = new Uint8Array(foo);
-			bar = new Uint8Array(bar);
-		} else if (ctor === DataView) {
-			if ((len=foo.byteLength) === bar.byteLength) {
-				while (len-- && foo.getInt8(len) === bar.getInt8(len));
-			}
-			return len === -1;
-		}
-
-		if (ArrayBuffer.isView(foo)) {
-			if ((len=foo.byteLength) === bar.byteLength) {
-				while (len-- && foo[len] === bar[len]);
-			}
-			return len === -1;
-		}
-
-		if (!ctor || typeof foo === 'object') {
-			len = 0;
-			for (ctor in foo) {
-				if (has.call(foo, ctor) && ++len && !has.call(bar, ctor)) return false;
-				if (!(ctor in bar) || !dequal(foo[ctor], bar[ctor])) return false;
-			}
-			return Object.keys(bar).length === len;
-		}
-	}
-
-	return foo !== foo && bar !== bar;
-}
-
-exports.dequal = dequal;