feat: Upgrade to Astro with full PDPA compliance

PDPA Features:
✅ Cookie consent banner
✅ Consent logging API
✅ Admin dashboard
✅ Privacy Policy
✅ Terms & Conditions

Technical:
✅ Astro 5.x + Tailwind v4
✅ Docker on port 80
✅ SQLite database
✅ 15 pages built

Ready for Easypanel deployment.

node_modules/widest-line/index.js

@@ -0,0 +1,11 @@
+import stringWidth from 'string-width';
+
+export default function widestLine(string) {
+	let lineWidth = 0;
+
+	for (const line of string.split('\n')) {
+		lineWidth = Math.max(lineWidth, stringWidth(line));
+	}
+
+	return lineWidth;
+}