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/css-tree/lib/syntax/config/lexer.js

@@ -0,0 +1,10 @@
+import { cssWideKeywords } from '../../lexer/generic-const.js';
+import definitions from '../../data.js';
+import * as node from '../node/index.js';
+
+export default {
+    generic: true,
+    cssWideKeywords,
+    ...definitions,
+    node
+};