refactor: Move Astro to root, use PORT env (default 80), allow all hosts

- Move Astro files from dealplustech-astro/ to project root
- Update Dockerfile: PORT environment variable (default 80)
- Add vite.config.ts with allowedHosts: true
- Matches nixpacks behavior for Easypanel deployment
- No hardcoded ports or domains

node_modules/uncrypto/dist/crypto.web.mjs

@@ -0,0 +1,15 @@
+const webCrypto = globalThis.crypto;
+const subtle = webCrypto.subtle;
+const randomUUID = () => {
+  return webCrypto.randomUUID();
+};
+const getRandomValues = (array) => {
+  return webCrypto.getRandomValues(array);
+};
+const _crypto = {
+  randomUUID,
+  getRandomValues,
+  subtle
+};
+
+export { _crypto as default, getRandomValues, randomUUID, subtle };