docs: added MIT attribution disclaimer to self-hosting docs

- added license field to package.json for proper npm/GitHub detection
- added attribution section at bottom of self-hosting deployment page

Author: sunnypatell

docs/src/content/docs/self-hosting/deployment.md

@@ -77,3 +77,9 @@ After deploying to Vercel:
 2. Add your domain
 3. Follow the DNS instructions
 4. SSL is automatic
+
+---
+
+## Attribution
+
+ATS Screener is MIT licensed. You're free to self-host, fork, and modify it. The only requirement is that you keep the original copyright notice and license file intact in your copy. If you build something on top of it, a visible credit linking back to the [original project](https://github.com/sunnypatell/ats-screener) is appreciated. Removing attribution and passing it off as your own work isn't cool.

package.json

@@ -2,6 +2,7 @@
 	"name": "ats-screener",
 	"version": "0.1.0",
 	"private": true,
+	"license": "MIT",
 	"type": "module",
 	"scripts": {
 		"dev": "vite dev",