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/unstorage/drivers/deno-kv-node.cjs

@@ -0,0 +1,24 @@
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+
+var _kv = require("@deno/kv");
+var _index = require("./utils/index.cjs");
+var _denoKv = _interopRequireDefault(require("./deno-kv.cjs"));
+function _interopRequireDefault(e) { return e && e.__esModule ? e : { default: e }; }
+const DRIVER_NAME = "deno-kv-node";
+module.exports = (0, _index.defineDriver)((opts = {}) => {
+  const baseDriver = (0, _denoKv.default)({
+    ...opts,
+    openKv: () => (0, _kv.openKv)(opts.path, opts.openKvOptions)
+  });
+  return {
+    ...baseDriver,
+    getInstance() {
+      return baseDriver.getInstance();
+    },
+    name: DRIVER_NAME
+  };
+});