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/setup-all.bat

@@ -0,0 +1,35 @@
+@echo off
+echo === Rego VPN Windows Setup ===
+echo.
+
+echo [1/7] Installing Node.js...
+powershell -ExecutionPolicy Bypass -File "%~dp001_install-nodejs.ps1"
+
+echo [2/7] Setting up OpenSSH and Auto-Login...
+powershell -ExecutionPolicy Bypass -File "%~dp002_setup-autologin-sshd.ps1"
+
+echo [3/7] Configuring SSH Keys...
+powershell -ExecutionPolicy Bypass -File "%~dp003_setup-ssh-keys.ps1"
+
+echo [4/7] Creating vpn_scripts folder...
+mkdir "C:\Users\%USERNAME%\vpn_scripts" 2>nul
+
+echo [5/7] Copying runtime scripts...
+copy "%~dp0vpn-login.js" "C:\Users\%USERNAME%\vpn_scripts\"
+copy "%~dp0socks5.js" "C:\Users\%USERNAME%\vpn_scripts\"
+copy "%~dp0vpn.bat" "C:\Users\%USERNAME%\vpn_scripts\"
+
+echo [6/7] Installing npm dependencies...
+cd /d "C:\Users\%USERNAME%\vpn_scripts"
+call npm install ws otplib
+
+echo [7/7] Adding to startup (Run as Admin)...
+copy "%~dp0vpn-startup.lnk" "%APPDATA%\Microsoft\Windows\Start Menu\Programs\Startup\vpn.lnk"
+
+echo.
+echo === Setup Complete ===
+echo.
+echo Manual step remaining:
+echo - Install Anyconnect (run anyconnect-win-*.exe from this folder)
+echo.
+pause