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/runtime.d.ts

@@ -0,0 +1,10 @@
+import type { ImageMetadata } from './types.js';
+export interface SvgComponentProps {
+    meta: ImageMetadata;
+    attributes: Record<string, string>;
+    children: string;
+}
+export declare function createSvgComponent({ meta, attributes, children }: SvgComponentProps): import("../runtime/server/index.js").AstroComponentFactory & ImageMetadata;
+type SvgAttributes = Record<string, any>;
+export declare function dropAttributes(attributes: SvgAttributes): SvgAttributes;
+export {};