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/which-pm-runs/README.md

@@ -0,0 +1,31 @@
+# which-pm-runs
+
+> Detects what package manager executes the process
+
+[![npm version](https://img.shields.io/npm/v/which-pm-runs.svg)](https://www.npmjs.com/package/which-pm-runs)
+
+Supports npm, pnpm, Yarn, cnpm. And also any other package manager that sets the `npm_config_user_agent` env variable.
+
+## Installation
+
+```
+pnpm add which-pm-runs
+```
+
+## Usage
+
+```js
+'use strict'
+const whichPMRuns = require('which-pm-runs')
+
+whichPMRuns()
+//> {name: "pnpm", version: "0.64.2"}
+```
+
+## Related
+
+* [which-pm](https://github.com/zkochan/packages/tree/main/which-pm) - Detects what package manager was used for installation
+
+## License
+
+[MIT](LICENSE) © [Zoltan Kochan](http://kochan.io)