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/svgo/bin/svgo.js

@@ -0,0 +1,10 @@
+#!/usr/bin/env node
+
+import colors from 'picocolors';
+import { program } from 'commander';
+import makeProgram from '../lib/svgo/coa.js';
+makeProgram(program);
+program.parseAsync(process.argv).catch((error) => {
+  console.error(colors.red(error.stack));
+  process.exit(1);
+});