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/astro/dist/assets/fonts/infra/dev-url-resolver.js

@@ -0,0 +1,29 @@
+import { joinPaths, prependForwardSlash } from "../../../core/path.js";
+import { createPlaceholderURL, stringifyPlaceholderURL } from "../../utils/url.js";
+class DevUrlResolver {
+  #resolved = false;
+  #base;
+  #searchParams;
+  constructor({
+    base,
+    searchParams
+  }) {
+    this.#base = base;
+    this.#searchParams = searchParams;
+  }
+  resolve(id) {
+    this.#resolved ||= true;
+    const urlPath = prependForwardSlash(joinPaths(this.#base, id));
+    const url = createPlaceholderURL(urlPath);
+    this.#searchParams.forEach((value, key) => {
+      url.searchParams.set(key, value);
+    });
+    return stringifyPlaceholderURL(url);
+  }
+  get cspResources() {
+    return this.#resolved ? ["'self'"] : [];
+  }
+}
+export {
+  DevUrlResolver
+};