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/mdast-util-to-markdown/lib/util/check-bullet-ordered.js

@@ -0,0 +1,21 @@
+/**
+ * @import {Options, State} from 'mdast-util-to-markdown'
+ */
+
+/**
+ * @param {State} state
+ * @returns {Exclude<Options['bulletOrdered'], null | undefined>}
+ */
+export function checkBulletOrdered(state) {
+  const marker = state.options.bulletOrdered || '.'
+
+  if (marker !== '.' && marker !== ')') {
+    throw new Error(
+      'Cannot serialize items with `' +
+        marker +
+        '` for `options.bulletOrdered`, expected `.` or `)`'
+    )
+  }
+
+  return marker
+}