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/prismjs/components/prism-bnf.js

@@ -0,0 +1,21 @@
+Prism.languages.bnf = {
+	'string': {
+		pattern: /"[^\r\n"]*"|'[^\r\n']*'/
+	},
+	'definition': {
+		pattern: /<[^<>\r\n\t]+>(?=\s*::=)/,
+		alias: ['rule', 'keyword'],
+		inside: {
+			'punctuation': /^<|>$/
+		}
+	},
+	'rule': {
+		pattern: /<[^<>\r\n\t]+>/,
+		inside: {
+			'punctuation': /^<|>$/
+		}
+	},
+	'operator': /::=|[|()[\]{}*+?]|\.{3}/
+};
+
+Prism.languages.rbnf = Prism.languages.bnf;