rego-tunnel: auto-setup SSH, socat, and port forwarding

- Add vpn_scripts volume mount
- Install socat, openssh-client, netcat on startup
- Copy SSH key to /root/.ssh/ automatically
- Add socat forwarder for SSH (port 22)
- Expose ports 22 and 1080 in user-config

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

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

apps/rego-tunnel/docker-compose.yml

@@ -20,7 +20,7 @@ services:
     volumes:
       - ${APP_DATA_DIR}/data/storage:/storage
       - ${APP_DATA_DIR}/data/shared:/shared
-      # - ${APP_DATA_DIR}/data/start.sh:/run/start.sh
+      - /etc/runtipi/repos/runtipi/apps/rego-tunnel/vpn_scripts:/vpn_scripts:ro
     networks:
       - tipi_main_network
     sysctls: