rego-tunnel: replace build folder with vpn_scripts

- Remove build folder (no longer building custom image)
- Add vpn_scripts folder with organized setup scripts
- Prefix setup scripts with numbers for execution order
- Add setup-all.bat for automated Windows setup
- Add dynamic vpn-startup.lnk shortcut (uses %USERNAME%)
- Include start.sh for container networking

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

apps/rego-tunnel/vpn_scripts/vpn.bat

@@ -0,0 +1,4 @@
+@echo off
+cd /d C:\Users\%USERNAME%\vpn_scripts\
+node vpn-login.js
+pause