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/astro/dist/env/constants.js

@@ -0,0 +1,19 @@
+const CLIENT_VIRTUAL_MODULE_ID = "astro:env/client";
+const RESOLVED_CLIENT_VIRTUAL_MODULE_ID = "\0" + CLIENT_VIRTUAL_MODULE_ID;
+const SERVER_VIRTUAL_MODULE_ID = "astro:env/server";
+const RESOLVED_SERVER_VIRTUAL_MODULE_ID = "\0" + SERVER_VIRTUAL_MODULE_ID;
+const INTERNAL_VIRTUAL_MODULE_ID = "virtual:astro:env/internal";
+const RESOLVED_INTERNAL_VIRTUAL_MODULE_ID = "\0" + INTERNAL_VIRTUAL_MODULE_ID;
+const ENV_TYPES_FILE = "env.d.ts";
+const PKG_BASE = new URL("../../", import.meta.url);
+const MODULE_TEMPLATE_URL = new URL("templates/env.mjs", PKG_BASE);
+export {
+  CLIENT_VIRTUAL_MODULE_ID,
+  ENV_TYPES_FILE,
+  INTERNAL_VIRTUAL_MODULE_ID,
+  MODULE_TEMPLATE_URL,
+  RESOLVED_CLIENT_VIRTUAL_MODULE_ID,
+  RESOLVED_INTERNAL_VIRTUAL_MODULE_ID,
+  RESOLVED_SERVER_VIRTUAL_MODULE_ID,
+  SERVER_VIRTUAL_MODULE_ID
+};