Add IP forwarding to entrypoint

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

apps/rego-tunnel/shared/install-cisco-vpn-connect-service.sh

@@ -1,14 +0,0 @@
-#!/usr/bin/env bash
-set -euo pipefail
-
-# Installs and enables the cisco-vpn systemd unit on the machine where you run this.
-# Intended to be executed inside the VM.
-
-UNIT_SRC_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
-UNIT_NAME="cisco-vpn-connect.service"
-
-sudo install -m 0644 "$UNIT_SRC_DIR/$UNIT_NAME" "/etc/systemd/system/$UNIT_NAME"
-sudo systemctl daemon-reload
-sudo systemctl enable --now "$UNIT_NAME"
-
-sudo systemctl --no-pager --full status "$UNIT_NAME" || true