Add build files with SSH client, VPN scripts, and auto-setup

Includes:
- Dockerfile extending dockurr/windows with openssh-client
- SSH key for Windows VM access
- Startup script for network setup and script deployment
- VPN automation scripts (vpn-login.js, socks5.js, vpn.bat)
- Windows setup scripts (install-nodejs.ps1, setup-autologin-sshd.ps1, setup-ssh-keys.ps1)
- Technical README

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

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

apps/rego-tunnel/build/id_ed25519-lenovo

@@ -0,0 +1,7 @@
+-----BEGIN OPENSSH PRIVATE KEY-----
+b3BlbnNzaC1rZXktdjEAAAAABG5vbmUAAAAEbm9uZQAAAAAAAAABAAAAMwAAAAtzc2gtZW
+QyNTUxOQAAACBh1EJ8NFn3hUUMe+lJSJl14bt8Xjh+NT5g0YnfKVitQwAAAJhfESWEXxEl
+hAAAAAtzc2gtZWQyNTUxOQAAACBh1EJ8NFn3hUUMe+lJSJl14bt8Xjh+NT5g0YnfKVitQw
+AAAEDgYZN7HwPbKY++p612bnhGC10P3GUHQdJlprPEFbODgWHUQnw0WfeFRQx76UlImXXh
+u3xeOH41PmDRid8pWK1DAAAAEWFsZXh6QEFaYXdQQy1QMTZTAQIDBA==
+-----END OPENSSH PRIVATE KEY-----