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/mdast-util-gfm-footnote/lib/index.d.ts

@@ -0,0 +1,22 @@
+/**
+ * Create an extension for `mdast-util-from-markdown` to enable GFM footnotes
+ * in markdown.
+ *
+ * @returns {FromMarkdownExtension}
+ *   Extension for `mdast-util-from-markdown`.
+ */
+export function gfmFootnoteFromMarkdown(): FromMarkdownExtension;
+/**
+ * Create an extension for `mdast-util-to-markdown` to enable GFM footnotes
+ * in markdown.
+ *
+ * @param {ToMarkdownOptions | null | undefined} [options]
+ *   Configuration (optional).
+ * @returns {ToMarkdownExtension}
+ *   Extension for `mdast-util-to-markdown`.
+ */
+export function gfmFootnoteToMarkdown(options?: ToMarkdownOptions | null | undefined): ToMarkdownExtension;
+import type { Extension as FromMarkdownExtension } from 'mdast-util-from-markdown';
+import type { ToMarkdownOptions } from 'mdast-util-gfm-footnote';
+import type { Options as ToMarkdownExtension } from 'mdast-util-to-markdown';
+//# sourceMappingURL=index.d.ts.map